annotate src/ex_eval.c @ 5621:be61f315eafe v7.4.157

updated for version 7.4.157 Problem: Error number used twice. (Yukihiro Nakadaira) Solution: Change the one not referred in the docs.
author Bram Moolenaar <bram@vim.org>
date Thu, 23 Jan 2014 18:12:49 +0100
parents 064e2a080e2e
children a1e71a01dbd6
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1 /* vi:set ts=8 sts=4 sw=4:
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2 *
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3 * VIM - Vi IMproved by Bram Moolenaar
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4 *
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5 * Do ":help uganda" in Vim to read copying and usage conditions.
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6 * Do ":help credits" in Vim to see a list of people who contributed.
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7 * See README.txt for an overview of the Vim source code.
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8 */
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9
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10 /*
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11 * ex_eval.c: functions for Ex command line for the +eval feature.
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12 */
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13
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14 #include "vim.h"
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15
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16 #if defined(FEAT_EVAL) || defined(PROTO)
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17
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18 static void free_msglist __ARGS((struct msglist *l));
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19 static int throw_exception __ARGS((void *, int, char_u *));
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20 static char_u *get_end_emsg __ARGS((struct condstack *cstack));
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21
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22 /*
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23 * Exception handling terms:
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24 *
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25 * :try ":try" command \
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26 * ... try block |
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27 * :catch RE ":catch" command |
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28 * ... catch clause |- try conditional
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29 * :finally ":finally" command |
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30 * ... finally clause |
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31 * :endtry ":endtry" command /
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32 *
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33 * The try conditional may have any number of catch clauses and at most one
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34 * finally clause. A ":throw" command can be inside the try block, a catch
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35 * clause, the finally clause, or in a function called or script sourced from
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36 * there or even outside the try conditional. Try conditionals may be nested.
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37 */
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38
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39 /*
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40 * Configuration whether an exception is thrown on error or interrupt. When
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41 * the preprocessor macros below evaluate to FALSE, an error (did_emsg) or
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42 * interrupt (got_int) under an active try conditional terminates the script
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43 * after the non-active finally clauses of all active try conditionals have been
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44 * executed. Otherwise, errors and/or interrupts are converted into catchable
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45 * exceptions (did_throw additionally set), which terminate the script only if
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46 * not caught. For user exceptions, only did_throw is set. (Note: got_int can
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47 * be set asynchronously afterwards by a SIGINT, so did_throw && got_int is not
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48 * a reliant test that the exception currently being thrown is an interrupt
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49 * exception. Similarly, did_emsg can be set afterwards on an error in an
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50 * (unskipped) conditional command inside an inactive conditional, so did_throw
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51 * && did_emsg is not a reliant test that the exception currently being thrown
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52 * is an error exception.) - The macros can be defined as expressions checking
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53 * for a variable that is allowed to be changed during execution of a script.
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54 */
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55 #if 0
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56 /* Expressions used for testing during the development phase. */
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57 # define THROW_ON_ERROR (!eval_to_number("$VIMNOERRTHROW"))
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58 # define THROW_ON_INTERRUPT (!eval_to_number("$VIMNOINTTHROW"))
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59 # define THROW_TEST
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60 #else
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61 /* Values used for the Vim release. */
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62 # define THROW_ON_ERROR TRUE
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63 # define THROW_ON_ERROR_TRUE
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64 # define THROW_ON_INTERRUPT TRUE
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65 # define THROW_ON_INTERRUPT_TRUE
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66 #endif
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67
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68 static void catch_exception __ARGS((except_T *excp));
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69 static void finish_exception __ARGS((except_T *excp));
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70 static void discard_exception __ARGS((except_T *excp, int was_finished));
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71 static void report_pending __ARGS((int action, int pending, void *value));
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72
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73 /*
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74 * When several errors appear in a row, setting "force_abort" is delayed until
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75 * the failing command returned. "cause_abort" is set to TRUE meanwhile, in
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76 * order to indicate that situation. This is useful when "force_abort" was set
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77 * during execution of a function call from an expression: the aborting of the
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78 * expression evaluation is done without producing any error messages, but all
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79 * error messages on parsing errors during the expression evaluation are given
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80 * (even if a try conditional is active).
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81 */
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82 static int cause_abort = FALSE;
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83
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84 /*
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85 * Return TRUE when immediately aborting on error, or when an interrupt
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86 * occurred or an exception was thrown but not caught. Use for ":{range}call"
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87 * to check whether an aborted function that does not handle a range itself
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88 * should be called again for the next line in the range. Also used for
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89 * cancelling expression evaluation after a function call caused an immediate
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90 * abort. Note that the first emsg() call temporarily resets "force_abort"
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91 * until the throw point for error messages has been reached. That is, during
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92 * cancellation of an expression evaluation after an aborting function call or
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93 * due to a parsing error, aborting() always returns the same value.
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94 */
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95 int
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96 aborting()
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97 {
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98 return (did_emsg && force_abort) || got_int || did_throw;
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99 }
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100
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101 /*
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102 * The value of "force_abort" is temporarily reset by the first emsg() call
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103 * during an expression evaluation, and "cause_abort" is used instead. It might
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104 * be necessary to restore "force_abort" even before the throw point for the
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105 * error message has been reached. update_force_abort() should be called then.
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106 */
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107 void
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108 update_force_abort()
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109 {
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110 if (cause_abort)
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111 force_abort = TRUE;
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112 }
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113
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114 /*
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115 * Return TRUE if a command with a subcommand resulting in "retcode" should
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116 * abort the script processing. Can be used to suppress an autocommand after
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117 * execution of a failing subcommand as long as the error message has not been
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118 * displayed and actually caused the abortion.
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119 */
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120 int
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121 should_abort(retcode)
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122 int retcode;
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123 {
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124 return ((retcode == FAIL && trylevel != 0 && !emsg_silent) || aborting());
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125 }
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126
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127 /*
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128 * Return TRUE if a function with the "abort" flag should not be considered
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129 * ended on an error. This means that parsing commands is continued in order
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130 * to find finally clauses to be executed, and that some errors in skipped
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131 * commands are still reported.
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132 */
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133 int
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134 aborted_in_try()
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135 {
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136 /* This function is only called after an error. In this case, "force_abort"
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137 * determines whether searching for finally clauses is necessary. */
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138 return force_abort;
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139 }
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140
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141 /*
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142 * cause_errthrow(): Cause a throw of an error exception if appropriate.
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143 * Return TRUE if the error message should not be displayed by emsg().
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144 * Sets "ignore", if the emsg() call should be ignored completely.
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145 *
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146 * When several messages appear in the same command, the first is usually the
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147 * most specific one and used as the exception value. The "severe" flag can be
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148 * set to TRUE, if a later but severer message should be used instead.
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149 */
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150 int
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151 cause_errthrow(mesg, severe, ignore)
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152 char_u *mesg;
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153 int severe;
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154 int *ignore;
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155 {
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156 struct msglist *elem;
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157 struct msglist **plist;
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158
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159 /*
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160 * Do nothing when displaying the interrupt message or reporting an
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161 * uncaught exception (which has already been discarded then) at the top
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162 * level. Also when no exception can be thrown. The message will be
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163 * displayed by emsg().
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164 */
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165 if (suppress_errthrow)
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166 return FALSE;
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167
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168 /*
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169 * If emsg() has not been called previously, temporarily reset
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170 * "force_abort" until the throw point for error messages has been
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171 * reached. This ensures that aborting() returns the same value for all
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172 * errors that appear in the same command. This means particularly that
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173 * for parsing errors during expression evaluation emsg() will be called
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174 * multiply, even when the expression is evaluated from a finally clause
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175 * that was activated due to an aborting error, interrupt, or exception.
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176 */
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177 if (!did_emsg)
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178 {
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179 cause_abort = force_abort;
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180 force_abort = FALSE;
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181 }
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182
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183 /*
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184 * If no try conditional is active and no exception is being thrown and
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185 * there has not been an error in a try conditional or a throw so far, do
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186 * nothing (for compatibility of non-EH scripts). The message will then
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187 * be displayed by emsg(). When ":silent!" was used and we are not
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188 * currently throwing an exception, do nothing. The message text will
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vimboss
parents: 835
diff changeset
189 * then be stored to v:errmsg by emsg() without displaying it.
7
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parents:
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190 */
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parents:
diff changeset
191 if (((trylevel == 0 && !cause_abort) || emsg_silent) && !did_throw)
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parents:
diff changeset
192 return FALSE;
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parents:
diff changeset
193
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vimboss
parents:
diff changeset
194 /*
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parents:
diff changeset
195 * Ignore an interrupt message when inside a try conditional or when an
839
1f3b1021f002 updated for version 7.0e05
vimboss
parents: 835
diff changeset
196 * exception is being thrown or when an error in a try conditional or
1f3b1021f002 updated for version 7.0e05
vimboss
parents: 835
diff changeset
197 * throw has been detected previously. This is important in order that an
7
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parents:
diff changeset
198 * interrupt exception is catchable by the innermost try conditional and
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parents:
diff changeset
199 * not replaced by an interrupt message error exception.
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vimboss
parents:
diff changeset
200 */
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vimboss
parents:
diff changeset
201 if (mesg == (char_u *)_(e_interr))
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vimboss
parents:
diff changeset
202 {
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vimboss
parents:
diff changeset
203 *ignore = TRUE;
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vimboss
parents:
diff changeset
204 return TRUE;
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vimboss
parents:
diff changeset
205 }
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vimboss
parents:
diff changeset
206
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vimboss
parents:
diff changeset
207 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
208 * Ensure that all commands in nested function calls and sourced files
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
209 * are aborted immediately.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
210 */
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vimboss
parents:
diff changeset
211 cause_abort = TRUE;
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vimboss
parents:
diff changeset
212
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vimboss
parents:
diff changeset
213 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
214 * When an exception is being thrown, some commands (like conditionals) are
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
215 * not skipped. Errors in those commands may affect what of the subsequent
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
216 * commands are regarded part of catch and finally clauses. Catching the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
217 * exception would then cause execution of commands not intended by the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
218 * user, who wouldn't even get aware of the problem. Therefor, discard the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
219 * exception currently being thrown to prevent it from being caught. Just
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
220 * execute finally clauses and terminate.
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vimboss
parents:
diff changeset
221 */
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vimboss
parents:
diff changeset
222 if (did_throw)
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vimboss
parents:
diff changeset
223 {
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vimboss
parents:
diff changeset
224 /* When discarding an interrupt exception, reset got_int to prevent the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
225 * same interrupt being converted to an exception again and discarding
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
226 * the error exception we are about to throw here. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
227 if (current_exception->type == ET_INTERRUPT)
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vimboss
parents:
diff changeset
228 got_int = FALSE;
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parents:
diff changeset
229 discard_current_exception();
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vimboss
parents:
diff changeset
230 }
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parents:
diff changeset
231
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vimboss
parents:
diff changeset
232 #ifdef THROW_TEST
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vimboss
parents:
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233 if (!THROW_ON_ERROR)
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vimboss
parents:
diff changeset
234 {
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vimboss
parents:
diff changeset
235 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
236 * Print error message immediately without searching for a matching
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
237 * catch clause; just finally clauses are executed before the script
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vimboss
parents:
diff changeset
238 * is terminated.
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vimboss
parents:
diff changeset
239 */
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vimboss
parents:
diff changeset
240 return FALSE;
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vimboss
parents:
diff changeset
241 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
242 else
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vimboss
parents:
diff changeset
243 #endif
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vimboss
parents:
diff changeset
244 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
245 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
246 * Prepare the throw of an error exception, so that everything will
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
247 * be aborted (except for executing finally clauses), until the error
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
248 * exception is caught; if still uncaught at the top level, the error
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
249 * message will be displayed and the script processing terminated
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
250 * then. - This function has no access to the conditional stack.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
251 * Thus, the actual throw is made after the failing command has
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
252 * returned. - Throw only the first of several errors in a row, except
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
253 * a severe error is following.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
254 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
255 if (msg_list != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
256 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
257 plist = msg_list;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
258 while (*plist != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
259 plist = &(*plist)->next;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
260
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
261 elem = (struct msglist *)alloc((unsigned)sizeof(struct msglist));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
262 if (elem == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
263 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
264 suppress_errthrow = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
265 EMSG(_(e_outofmem));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
266 }
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vimboss
parents:
diff changeset
267 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
268 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
269 elem->msg = vim_strsave(mesg);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
270 if (elem->msg == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
271 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
272 vim_free(elem);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
273 suppress_errthrow = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
274 EMSG(_(e_outofmem));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
275 }
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vimboss
parents:
diff changeset
276 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
277 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
278 elem->next = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
279 elem->throw_msg = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
280 *plist = elem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
281 if (plist == msg_list || severe)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
282 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
283 char_u *tmsg;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
284
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vimboss
parents:
diff changeset
285 /* Skip the extra "Vim " prefix for message "E458". */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
286 tmsg = elem->msg;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
287 if (STRNCMP(tmsg, "Vim E", 5) == 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
288 && VIM_ISDIGIT(tmsg[5])
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
289 && VIM_ISDIGIT(tmsg[6])
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
290 && VIM_ISDIGIT(tmsg[7])
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
291 && tmsg[8] == ':'
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
292 && tmsg[9] == ' ')
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
293 (*msg_list)->throw_msg = &tmsg[4];
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
294 else
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vimboss
parents:
diff changeset
295 (*msg_list)->throw_msg = tmsg;
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vimboss
parents:
diff changeset
296 }
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vimboss
parents:
diff changeset
297 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
298 }
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vimboss
parents:
diff changeset
299 }
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vimboss
parents:
diff changeset
300 return TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
301 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
302 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
303
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
304 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
305 * Free a "msg_list" and the messages it contains.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
306 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
307 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
308 free_msglist(l)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
309 struct msglist *l;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
310 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
311 struct msglist *messages, *next;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
312
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
313 messages = l;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
314 while (messages != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
315 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
316 next = messages->next;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
317 vim_free(messages->msg);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
318 vim_free(messages);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
319 messages = next;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
320 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
321 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
322
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
323 /*
5517
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
324 * Free global "*msg_list" and the messages it contains, then set "*msg_list"
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
325 * to NULL.
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
326 */
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
327 void
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
328 free_global_msglist()
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
329 {
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
330 free_msglist(*msg_list);
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
331 *msg_list = NULL;
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
332 }
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
333
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
334 /*
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
335 * Throw the message specified in the call to cause_errthrow() above as an
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
336 * error exception. If cstack is NULL, postpone the throw until do_cmdline()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
337 * has returned (see do_one_cmd()).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
338 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
339 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
340 do_errthrow(cstack, cmdname)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
341 struct condstack *cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
342 char_u *cmdname;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
343 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
344 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
345 * Ensure that all commands in nested function calls and sourced files
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
346 * are aborted immediately.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
347 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
348 if (cause_abort)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
349 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
350 cause_abort = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
351 force_abort = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
352 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
353
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
354 /* If no exception is to be thrown or the conversion should be done after
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
355 * returning to a previous invocation of do_one_cmd(), do nothing. */
1046
26ff011aec2d updated for version 7.0-172
vimboss
parents: 840
diff changeset
356 if (msg_list == NULL || *msg_list == NULL)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
357 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
358
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
359 if (throw_exception(*msg_list, ET_ERROR, cmdname) == FAIL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
360 free_msglist(*msg_list);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
361 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
362 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
363 if (cstack != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
364 do_throw(cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
365 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
366 need_rethrow = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
367 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
368 *msg_list = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
369 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
370
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
371 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
372 * do_intthrow(): Replace the current exception by an interrupt or interrupt
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
373 * exception if appropriate. Return TRUE if the current exception is discarded,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
374 * FALSE otherwise.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
375 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
376 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
377 do_intthrow(cstack)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
378 struct condstack *cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
379 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
380 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
381 * If no interrupt occurred or no try conditional is active and no exception
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
382 * is being thrown, do nothing (for compatibility of non-EH scripts).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
383 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
384 if (!got_int || (trylevel == 0 && !did_throw))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
385 return FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
386
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
387 #ifdef THROW_TEST /* avoid warning for condition always true */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
388 if (!THROW_ON_INTERRUPT)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
389 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
390 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
391 * The interrupt aborts everything except for executing finally clauses.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
392 * Discard any user or error or interrupt exception currently being
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
393 * thrown.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
394 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
395 if (did_throw)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
396 discard_current_exception();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
397 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
398 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
399 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
400 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
401 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
402 * Throw an interrupt exception, so that everything will be aborted
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
403 * (except for executing finally clauses), until the interrupt exception
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
404 * is caught; if still uncaught at the top level, the script processing
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
405 * will be terminated then. - If an interrupt exception is already
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
406 * being thrown, do nothing.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
407 *
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
408 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
409 if (did_throw)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
410 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
411 if (current_exception->type == ET_INTERRUPT)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
412 return FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
413
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
414 /* An interrupt exception replaces any user or error exception. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
415 discard_current_exception();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
416 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
417 if (throw_exception("Vim:Interrupt", ET_INTERRUPT, NULL) != FAIL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
418 do_throw(cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
419 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
420
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
421 return TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
422 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
423
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
424 /*
5517
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
425 * Get an exception message that is to be stored in current_exception->value.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
426 */
5517
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
427 char_u *
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
428 get_exception_string(value, type, cmdname, should_free)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
429 void *value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
430 int type;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
431 char_u *cmdname;
5517
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
432 int *should_free;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
433 {
5517
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
434 char_u *ret, *mesg;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
435 int cmdlen;
5517
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
436 char_u *p, *val;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
437
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
438 if (type == ET_ERROR)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
439 {
5517
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
440 *should_free = FALSE;
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
441 mesg = ((struct msglist *)value)->throw_msg;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
442 if (cmdname != NULL && *cmdname != NUL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
443 {
835
8bebcabccc2c updated for version 7.0e01
vimboss
parents: 359
diff changeset
444 cmdlen = (int)STRLEN(cmdname);
5517
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
445 ret = vim_strnsave((char_u *)"Vim(",
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
446 4 + cmdlen + 2 + (int)STRLEN(mesg));
5517
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
447 if (ret == NULL)
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
448 return ret;
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
449 STRCPY(&ret[4], cmdname);
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
450 STRCPY(&ret[4 + cmdlen], "):");
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
451 val = ret + 4 + cmdlen + 2;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
452 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
453 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
454 {
5517
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
455 ret = vim_strnsave((char_u *)"Vim:", 4 + (int)STRLEN(mesg));
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
456 if (ret == NULL)
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
457 return ret;
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
458 val = ret + 4;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
459 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
460
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
461 /* msg_add_fname may have been used to prefix the message with a file
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
462 * name in quotes. In the exception value, put the file name in
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
463 * parentheses and move it to the end. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
464 for (p = mesg; ; p++)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
465 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
466 if (*p == NUL
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
467 || (*p == 'E'
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
468 && VIM_ISDIGIT(p[1])
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
469 && (p[2] == ':'
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
470 || (VIM_ISDIGIT(p[2])
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
471 && (p[3] == ':'
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
472 || (VIM_ISDIGIT(p[3])
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
473 && p[4] == ':'))))))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
474 {
273
2463194c8cdd updated for version 7.0073
vimboss
parents: 114
diff changeset
475 if (*p == NUL || p == mesg)
2463194c8cdd updated for version 7.0073
vimboss
parents: 114
diff changeset
476 STRCAT(val, mesg); /* 'E123' missing or at beginning */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
477 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
478 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
479 /* '"filename" E123: message text' */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
480 if (mesg[0] != '"' || p-2 < &mesg[1] ||
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
481 p[-2] != '"' || p[-1] != ' ')
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
482 /* "E123:" is part of the file name. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
483 continue;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
484
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
485 STRCAT(val, p);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
486 p[-2] = NUL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
487 sprintf((char *)(val + STRLEN(p)), " (%s)", &mesg[1]);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
488 p[-2] = '"';
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
489 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
490 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
491 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
492 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
493 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
494 else
5517
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
495 {
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
496 *should_free = FALSE;
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
497 ret = (char_u *) value;
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
498 }
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
499
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
500 return ret;
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
501 }
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
502
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
503
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
504 /*
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
505 * Throw a new exception. Return FAIL when out of memory or it was tried to
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
506 * throw an illegal user exception. "value" is the exception string for a
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
507 * user or interrupt exception, or points to a message list in case of an
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
508 * error exception.
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
509 */
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
510 static int
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
511 throw_exception(value, type, cmdname)
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
512 void *value;
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
513 int type;
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
514 char_u *cmdname;
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
515 {
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
516 except_T *excp;
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
517 int should_free;
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
518
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
519 /*
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
520 * Disallow faking Interrupt or error exceptions as user exceptions. They
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
521 * would be treated differently from real interrupt or error exceptions
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
522 * when no active try block is found, see do_cmdline().
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
523 */
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
524 if (type == ET_USER)
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
525 {
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
526 if (STRNCMP((char_u *)value, "Vim", 3) == 0
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
527 && (((char_u *)value)[3] == NUL || ((char_u *)value)[3] == ':'
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
528 || ((char_u *)value)[3] == '('))
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
529 {
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
530 EMSG(_("E608: Cannot :throw exceptions with 'Vim' prefix"));
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
531 goto fail;
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
532 }
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
533 }
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
534
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
535 excp = (except_T *)alloc((unsigned)sizeof(except_T));
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
536 if (excp == NULL)
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
537 goto nomem;
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
538
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
539 if (type == ET_ERROR)
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
540 /* Store the original message and prefix the exception value with
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
541 * "Vim:" or, if a command name is given, "Vim(cmdname):". */
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
542 excp->messages = (struct msglist *)value;
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
543
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
544 excp->value = get_exception_string(value, type, cmdname, &should_free);
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
545 if (excp->value == NULL && should_free)
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
546 goto nomem;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
547
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
548 excp->type = type;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
549 excp->throw_name = vim_strsave(sourcing_name == NULL
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
550 ? (char_u *)"" : sourcing_name);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
551 if (excp->throw_name == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
552 {
5517
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
553 if (should_free)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
554 vim_free(excp->value);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
555 goto nomem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
556 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
557 excp->throw_lnum = sourcing_lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
558
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
559 if (p_verbose >= 13 || debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
560 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
561 int save_msg_silent = msg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
562
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
563 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
564 msg_silent = FALSE; /* display messages */
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
565 else
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
566 verbose_enter();
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
567 ++no_wait_return;
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
568 if (debug_break_level > 0 || *p_vfile == NUL)
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
569 msg_scroll = TRUE; /* always scroll up, don't overwrite */
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
570
273
2463194c8cdd updated for version 7.0073
vimboss
parents: 114
diff changeset
571 smsg((char_u *)_("Exception thrown: %s"), excp->value);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
572 msg_puts((char_u *)"\n"); /* don't overwrite this either */
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
573
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
574 if (debug_break_level > 0 || *p_vfile == NUL)
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
575 cmdline_row = msg_row;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
576 --no_wait_return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
577 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
578 msg_silent = save_msg_silent;
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
579 else
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
580 verbose_leave();
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
581 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
582
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
583 current_exception = excp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
584 return OK;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
585
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
586 nomem:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
587 vim_free(excp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
588 suppress_errthrow = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
589 EMSG(_(e_outofmem));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
590 fail:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
591 current_exception = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
592 return FAIL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
593 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
594
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
595 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
596 * Discard an exception. "was_finished" is set when the exception has been
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
597 * caught and the catch clause has been ended normally.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
598 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
599 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
600 discard_exception(excp, was_finished)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
601 except_T *excp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
602 int was_finished;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
603 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
604 char_u *saved_IObuff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
605
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
606 if (excp == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
607 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
608 EMSG(_(e_internal));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
609 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
610 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
611
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
612 if (p_verbose >= 13 || debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
613 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
614 int save_msg_silent = msg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
615
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
616 saved_IObuff = vim_strsave(IObuff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
617 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
618 msg_silent = FALSE; /* display messages */
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
619 else
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
620 verbose_enter();
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
621 ++no_wait_return;
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
622 if (debug_break_level > 0 || *p_vfile == NUL)
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
623 msg_scroll = TRUE; /* always scroll up, don't overwrite */
273
2463194c8cdd updated for version 7.0073
vimboss
parents: 114
diff changeset
624 smsg(was_finished
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
625 ? (char_u *)_("Exception finished: %s")
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
626 : (char_u *)_("Exception discarded: %s"),
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
627 excp->value);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
628 msg_puts((char_u *)"\n"); /* don't overwrite this either */
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
629 if (debug_break_level > 0 || *p_vfile == NUL)
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
630 cmdline_row = msg_row;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
631 --no_wait_return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
632 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
633 msg_silent = save_msg_silent;
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
634 else
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
635 verbose_leave();
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
636 STRCPY(IObuff, saved_IObuff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
637 vim_free(saved_IObuff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
638 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
639 if (excp->type != ET_INTERRUPT)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
640 vim_free(excp->value);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
641 if (excp->type == ET_ERROR)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
642 free_msglist(excp->messages);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
643 vim_free(excp->throw_name);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
644 vim_free(excp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
645 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
646
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
647 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
648 * Discard the exception currently being thrown.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
649 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
650 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
651 discard_current_exception()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
652 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
653 discard_exception(current_exception, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
654 current_exception = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
655 did_throw = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
656 need_rethrow = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
657 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
658
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
659 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
660 * Put an exception on the caught stack.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
661 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
662 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
663 catch_exception(excp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
664 except_T *excp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
665 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
666 excp->caught = caught_stack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
667 caught_stack = excp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
668 set_vim_var_string(VV_EXCEPTION, excp->value, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
669 if (*excp->throw_name != NUL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
670 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
671 if (excp->throw_lnum != 0)
273
2463194c8cdd updated for version 7.0073
vimboss
parents: 114
diff changeset
672 vim_snprintf((char *)IObuff, IOSIZE, _("%s, line %ld"),
2463194c8cdd updated for version 7.0073
vimboss
parents: 114
diff changeset
673 excp->throw_name, (long)excp->throw_lnum);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
674 else
273
2463194c8cdd updated for version 7.0073
vimboss
parents: 114
diff changeset
675 vim_snprintf((char *)IObuff, IOSIZE, "%s", excp->throw_name);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
676 set_vim_var_string(VV_THROWPOINT, IObuff, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
677 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
678 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
679 /* throw_name not set on an exception from a command that was typed. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
680 set_vim_var_string(VV_THROWPOINT, NULL, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
681
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
682 if (p_verbose >= 13 || debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
683 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
684 int save_msg_silent = msg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
685
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
686 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
687 msg_silent = FALSE; /* display messages */
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
688 else
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
689 verbose_enter();
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
690 ++no_wait_return;
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
691 if (debug_break_level > 0 || *p_vfile == NUL)
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
692 msg_scroll = TRUE; /* always scroll up, don't overwrite */
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
693
273
2463194c8cdd updated for version 7.0073
vimboss
parents: 114
diff changeset
694 smsg((char_u *)_("Exception caught: %s"), excp->value);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
695 msg_puts((char_u *)"\n"); /* don't overwrite this either */
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
696
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
697 if (debug_break_level > 0 || *p_vfile == NUL)
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
698 cmdline_row = msg_row;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
699 --no_wait_return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
700 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
701 msg_silent = save_msg_silent;
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
702 else
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
703 verbose_leave();
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
704 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
705 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
706
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
707 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
708 * Remove an exception from the caught stack.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
709 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
710 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
711 finish_exception(excp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
712 except_T *excp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
713 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
714 if (excp != caught_stack)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
715 EMSG(_(e_internal));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
716 caught_stack = caught_stack->caught;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
717 if (caught_stack != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
718 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
719 set_vim_var_string(VV_EXCEPTION, caught_stack->value, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
720 if (*caught_stack->throw_name != NUL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
721 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
722 if (caught_stack->throw_lnum != 0)
273
2463194c8cdd updated for version 7.0073
vimboss
parents: 114
diff changeset
723 vim_snprintf((char *)IObuff, IOSIZE,
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
724 _("%s, line %ld"), caught_stack->throw_name,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
725 (long)caught_stack->throw_lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
726 else
273
2463194c8cdd updated for version 7.0073
vimboss
parents: 114
diff changeset
727 vim_snprintf((char *)IObuff, IOSIZE, "%s",
2463194c8cdd updated for version 7.0073
vimboss
parents: 114
diff changeset
728 caught_stack->throw_name);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
729 set_vim_var_string(VV_THROWPOINT, IObuff, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
730 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
731 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
732 /* throw_name not set on an exception from a command that was
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
733 * typed. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
734 set_vim_var_string(VV_THROWPOINT, NULL, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
735 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
736 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
737 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
738 set_vim_var_string(VV_EXCEPTION, NULL, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
739 set_vim_var_string(VV_THROWPOINT, NULL, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
740 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
741
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
742 /* Discard the exception, but use the finish message for 'verbose'. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
743 discard_exception(excp, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
744 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
745
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
746 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
747 * Flags specifying the message displayed by report_pending.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
748 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
749 #define RP_MAKE 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
750 #define RP_RESUME 1
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
751 #define RP_DISCARD 2
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
752
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
753 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
754 * Report information about something pending in a finally clause if required by
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
755 * the 'verbose' option or when debugging. "action" tells whether something is
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
756 * made pending or something pending is resumed or discarded. "pending" tells
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
757 * what is pending. "value" specifies the return value for a pending ":return"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
758 * or the exception value for a pending exception.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
759 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
760 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
761 report_pending(action, pending, value)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
762 int action;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
763 int pending;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
764 void *value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
765 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
766 char_u *mesg;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
767 char *s;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
768 int save_msg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
769
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
770
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
771 switch (action)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
772 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
773 case RP_MAKE:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
774 mesg = (char_u *)_("%s made pending");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
775 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
776 case RP_RESUME:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
777 mesg = (char_u *)_("%s resumed");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
778 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
779 /* case RP_DISCARD: */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
780 default:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
781 mesg = (char_u *)_("%s discarded");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
782 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
783 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
784
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
785 switch (pending)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
786 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
787 case CSTP_NONE:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
788 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
789
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
790 case CSTP_CONTINUE:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
791 s = ":continue";
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
792 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
793 case CSTP_BREAK:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
794 s = ":break";
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
795 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
796 case CSTP_FINISH:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
797 s = ":finish";
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
798 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
799 case CSTP_RETURN:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
800 /* ":return" command producing value, allocated */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
801 s = (char *)get_return_cmd(value);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
802 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
803
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
804 default:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
805 if (pending & CSTP_THROW)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
806 {
273
2463194c8cdd updated for version 7.0073
vimboss
parents: 114
diff changeset
807 vim_snprintf((char *)IObuff, IOSIZE,
2463194c8cdd updated for version 7.0073
vimboss
parents: 114
diff changeset
808 (char *)mesg, _("Exception"));
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
809 mesg = vim_strnsave(IObuff, (int)STRLEN(IObuff) + 4);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
810 STRCAT(mesg, ": %s");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
811 s = (char *)((except_T *)value)->value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
812 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
813 else if ((pending & CSTP_ERROR) && (pending & CSTP_INTERRUPT))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
814 s = _("Error and interrupt");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
815 else if (pending & CSTP_ERROR)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
816 s = _("Error");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
817 else /* if (pending & CSTP_INTERRUPT) */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
818 s = _("Interrupt");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
819 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
820
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
821 save_msg_silent = msg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
822 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
823 msg_silent = FALSE; /* display messages */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
824 ++no_wait_return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
825 msg_scroll = TRUE; /* always scroll up, don't overwrite */
273
2463194c8cdd updated for version 7.0073
vimboss
parents: 114
diff changeset
826 smsg(mesg, (char_u *)s);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
827 msg_puts((char_u *)"\n"); /* don't overwrite this either */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
828 cmdline_row = msg_row;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
829 --no_wait_return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
830 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
831 msg_silent = save_msg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
832
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
833 if (pending == CSTP_RETURN)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
834 vim_free(s);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
835 else if (pending & CSTP_THROW)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
836 vim_free(mesg);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
837 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
838
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
839 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
840 * If something is made pending in a finally clause, report it if required by
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
841 * the 'verbose' option or when debugging.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
842 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
843 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
844 report_make_pending(pending, value)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
845 int pending;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
846 void *value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
847 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
848 if (p_verbose >= 14 || debug_break_level > 0)
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
849 {
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
850 if (debug_break_level <= 0)
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
851 verbose_enter();
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
852 report_pending(RP_MAKE, pending, value);
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
853 if (debug_break_level <= 0)
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
854 verbose_leave();
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
855 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
856 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
857
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
858 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
859 * If something pending in a finally clause is resumed at the ":endtry", report
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
860 * it if required by the 'verbose' option or when debugging.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
861 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
862 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
863 report_resume_pending(pending, value)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
864 int pending;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
865 void *value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
866 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
867 if (p_verbose >= 14 || debug_break_level > 0)
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
868 {
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
869 if (debug_break_level <= 0)
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
870 verbose_enter();
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
871 report_pending(RP_RESUME, pending, value);
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
872 if (debug_break_level <= 0)
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
873 verbose_leave();
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
874 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
875 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
876
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
877 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
878 * If something pending in a finally clause is discarded, report it if required
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
879 * by the 'verbose' option or when debugging.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
880 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
881 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
882 report_discard_pending(pending, value)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
883 int pending;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
884 void *value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
885 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
886 if (p_verbose >= 14 || debug_break_level > 0)
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
887 {
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
888 if (debug_break_level <= 0)
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
889 verbose_enter();
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
890 report_pending(RP_DISCARD, pending, value);
293
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
891 if (debug_break_level <= 0)
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
892 verbose_leave();
f811be6fa9b5 updated for version 7.0077
vimboss
parents: 273
diff changeset
893 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
894 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
895
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
896
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
897 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
898 * ":if".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
899 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
900 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
901 ex_if(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
902 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
903 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
904 int error;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
905 int skip;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
906 int result;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
907 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
908
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
909 if (cstack->cs_idx == CSTACK_LEN - 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
910 eap->errmsg = (char_u *)N_("E579: :if nesting too deep");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
911 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
912 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
913 ++cstack->cs_idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
914 cstack->cs_flags[cstack->cs_idx] = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
915
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
916 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
917 * Don't do something after an error, interrupt, or throw, or when there
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
918 * is a surrounding conditional and it was not active.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
919 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
920 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
921 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
922
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
923 result = eval_to_bool(eap->arg, &error, &eap->nextcmd, skip);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
924
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
925 if (!skip && !error)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
926 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
927 if (result)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
928 cstack->cs_flags[cstack->cs_idx] = CSF_ACTIVE | CSF_TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
929 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
930 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
931 /* set TRUE, so this conditional will never get active */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
932 cstack->cs_flags[cstack->cs_idx] = CSF_TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
933 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
934 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
935
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
936 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
937 * ":endif".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
938 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
939 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
940 ex_endif(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
941 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
942 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
943 did_endif = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
944 if (eap->cstack->cs_idx < 0
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
945 || (eap->cstack->cs_flags[eap->cstack->cs_idx]
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
946 & (CSF_WHILE | CSF_FOR | CSF_TRY)))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
947 eap->errmsg = (char_u *)N_("E580: :endif without :if");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
948 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
949 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
950 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
951 * When debugging or a breakpoint was encountered, display the debug
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
952 * prompt (if not already done). This shows the user that an ":endif"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
953 * is executed when the ":if" or a previous ":elseif" was not TRUE.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
954 * Handle a ">quit" debug command as if an interrupt had occurred before
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
955 * the ":endif". That is, throw an interrupt exception if appropriate.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
956 * Doing this here prevents an exception for a parsing error being
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
957 * discarded by throwing the interrupt exception later on.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
958 */
359
6c62b9b939bd updated for version 7.0093
vimboss
parents: 293
diff changeset
959 if (!(eap->cstack->cs_flags[eap->cstack->cs_idx] & CSF_TRUE)
6c62b9b939bd updated for version 7.0093
vimboss
parents: 293
diff changeset
960 && dbg_check_skipped(eap))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
961 (void)do_intthrow(eap->cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
962
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
963 --eap->cstack->cs_idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
964 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
965 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
966
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
967 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
968 * ":else" and ":elseif".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
969 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
970 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
971 ex_else(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
972 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
973 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
974 int error;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
975 int skip;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
976 int result;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
977 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
978
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
979 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
980 * Don't do something after an error, interrupt, or throw, or when there is
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
981 * a surrounding conditional and it was not active.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
982 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
983 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
984 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
985
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
986 if (cstack->cs_idx < 0
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
987 || (cstack->cs_flags[cstack->cs_idx]
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
988 & (CSF_WHILE | CSF_FOR | CSF_TRY)))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
989 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
990 if (eap->cmdidx == CMD_else)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
991 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
992 eap->errmsg = (char_u *)N_("E581: :else without :if");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
993 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
994 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
995 eap->errmsg = (char_u *)N_("E582: :elseif without :if");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
996 skip = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
997 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
998 else if (cstack->cs_flags[cstack->cs_idx] & CSF_ELSE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
999 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1000 if (eap->cmdidx == CMD_else)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1001 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1002 eap->errmsg = (char_u *)N_("E583: multiple :else");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1003 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1004 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1005 eap->errmsg = (char_u *)N_("E584: :elseif after :else");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1006 skip = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1007 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1008
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1009 /* if skipping or the ":if" was TRUE, reset ACTIVE, otherwise set it */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1010 if (skip || cstack->cs_flags[cstack->cs_idx] & CSF_TRUE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1011 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1012 if (eap->errmsg == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1013 cstack->cs_flags[cstack->cs_idx] = CSF_TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1014 skip = TRUE; /* don't evaluate an ":elseif" */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1015 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1016 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1017 cstack->cs_flags[cstack->cs_idx] = CSF_ACTIVE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1018
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1019 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1020 * When debugging or a breakpoint was encountered, display the debug prompt
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1021 * (if not already done). This shows the user that an ":else" or ":elseif"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1022 * is executed when the ":if" or previous ":elseif" was not TRUE. Handle
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1023 * a ">quit" debug command as if an interrupt had occurred before the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1024 * ":else" or ":elseif". That is, set "skip" and throw an interrupt
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1025 * exception if appropriate. Doing this here prevents that an exception
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1026 * for a parsing errors is discarded when throwing the interrupt exception
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1027 * later on.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1028 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1029 if (!skip && dbg_check_skipped(eap) && got_int)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1030 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1031 (void)do_intthrow(cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1032 skip = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1033 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1034
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1035 if (eap->cmdidx == CMD_elseif)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1036 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1037 result = eval_to_bool(eap->arg, &error, &eap->nextcmd, skip);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1038 /* When throwing error exceptions, we want to throw always the first
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1039 * of several errors in a row. This is what actually happens when
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1040 * a conditional error was detected above and there is another failure
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1041 * when parsing the expression. Since the skip flag is set in this
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1042 * case, the parsing error will be ignored by emsg(). */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1043
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1044 if (!skip && !error)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1045 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1046 if (result)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1047 cstack->cs_flags[cstack->cs_idx] = CSF_ACTIVE | CSF_TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1048 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1049 cstack->cs_flags[cstack->cs_idx] = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1050 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1051 else if (eap->errmsg == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1052 /* set TRUE, so this conditional will never get active */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1053 cstack->cs_flags[cstack->cs_idx] = CSF_TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1054 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1055 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1056 cstack->cs_flags[cstack->cs_idx] |= CSF_ELSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1057 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1058
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1059 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1060 * Handle ":while" and ":for".
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1061 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1062 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1063 ex_while(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1064 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1065 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1066 int error;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1067 int skip;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1068 int result;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1069 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1070
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1071 if (cstack->cs_idx == CSTACK_LEN - 1)
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1072 eap->errmsg = (char_u *)N_("E585: :while/:for nesting too deep");
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1073 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1074 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1075 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1076 * The loop flag is set when we have jumped back from the matching
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1077 * ":endwhile" or ":endfor". When not set, need to initialise this
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1078 * cstack entry.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1079 */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1080 if ((cstack->cs_lflags & CSL_HAD_LOOP) == 0)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1081 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1082 ++cstack->cs_idx;
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1083 ++cstack->cs_looplevel;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1084 cstack->cs_line[cstack->cs_idx] = -1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1085 }
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1086 cstack->cs_flags[cstack->cs_idx] =
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1087 eap->cmdidx == CMD_while ? CSF_WHILE : CSF_FOR;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1088
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1089 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1090 * Don't do something after an error, interrupt, or throw, or when
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1091 * there is a surrounding conditional and it was not active.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1092 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1093 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1094 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE));
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1095 if (eap->cmdidx == CMD_while)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1096 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1097 /*
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1098 * ":while bool-expr"
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1099 */
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1100 result = eval_to_bool(eap->arg, &error, &eap->nextcmd, skip);
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1101 }
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1102 else
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1103 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1104 void *fi;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1105
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1106 /*
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1107 * ":for var in list-expr"
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1108 */
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1109 if ((cstack->cs_lflags & CSL_HAD_LOOP) != 0)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1110 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1111 /* Jumping here from a ":continue" or ":endfor": use the
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1112 * previously evaluated list. */
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1113 fi = cstack->cs_forinfo[cstack->cs_idx];
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1114 error = FALSE;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1115 }
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1116 else
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1117 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1118 /* Evaluate the argument and get the info in a structure. */
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1119 fi = eval_for_line(eap->arg, &error, &eap->nextcmd, skip);
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1120 cstack->cs_forinfo[cstack->cs_idx] = fi;
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1121 }
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1122
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1123 /* use the element at the start of the list and advance */
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1124 if (!error && fi != NULL && !skip)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1125 result = next_for_item(fi, eap->arg);
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1126 else
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1127 result = FALSE;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1128
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1129 if (!result)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1130 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1131 free_for_info(fi);
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1132 cstack->cs_forinfo[cstack->cs_idx] = NULL;
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1133 }
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1134 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1135
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1136 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1137 * If this cstack entry was just initialised and is active, set the
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1138 * loop flag, so do_cmdline() will set the line number in cs_line[].
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1139 * If executing the command a second time, clear the loop flag.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1140 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1141 if (!skip && !error && result)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1142 {
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1143 cstack->cs_flags[cstack->cs_idx] |= (CSF_ACTIVE | CSF_TRUE);
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1144 cstack->cs_lflags ^= CSL_HAD_LOOP;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1145 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1146 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1147 {
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1148 cstack->cs_lflags &= ~CSL_HAD_LOOP;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1149 /* If the ":while" evaluates to FALSE or ":for" is past the end of
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1150 * the list, show the debug prompt at the ":endwhile"/":endfor" as
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1151 * if there was a ":break" in a ":while"/":for" evaluating to
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1152 * TRUE. */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1153 if (!skip && !error)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1154 cstack->cs_flags[cstack->cs_idx] |= CSF_TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1155 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1156 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1157 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1158
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1159 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1160 * ":continue"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1161 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1162 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1163 ex_continue(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1164 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1165 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1166 int idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1167 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1168
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1169 if (cstack->cs_looplevel <= 0 || cstack->cs_idx < 0)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1170 eap->errmsg = (char_u *)N_("E586: :continue without :while or :for");
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1171 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1172 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1173 /* Try to find the matching ":while". This might stop at a try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1174 * conditional not in its finally clause (which is then to be executed
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1175 * next). Therefor, inactivate all conditionals except the ":while"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1176 * itself (if reached). */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1177 idx = cleanup_conditionals(cstack, CSF_WHILE | CSF_FOR, FALSE);
840
2c885fab04e3 updated for version 7.0e06
vimboss
parents: 839
diff changeset
1178 if (idx >= 0 && (cstack->cs_flags[idx] & (CSF_WHILE | CSF_FOR)))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1179 {
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1180 rewind_conditionals(cstack, idx, CSF_TRY, &cstack->cs_trylevel);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1181
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1182 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1183 * Set CSL_HAD_CONT, so do_cmdline() will jump back to the
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1184 * matching ":while".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1185 */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1186 cstack->cs_lflags |= CSL_HAD_CONT; /* let do_cmdline() handle it */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1187 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1188 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1189 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1190 /* If a try conditional not in its finally clause is reached first,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1191 * make the ":continue" pending for execution at the ":endtry". */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1192 cstack->cs_pending[idx] = CSTP_CONTINUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1193 report_make_pending(CSTP_CONTINUE, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1194 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1195 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1196 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1197
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1198 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1199 * ":break"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1200 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1201 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1202 ex_break(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1203 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1204 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1205 int idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1206 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1207
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1208 if (cstack->cs_looplevel <= 0 || cstack->cs_idx < 0)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1209 eap->errmsg = (char_u *)N_("E587: :break without :while or :for");
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1210 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1211 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1212 /* Inactivate conditionals until the matching ":while" or a try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1213 * conditional not in its finally clause (which is then to be
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1214 * executed next) is found. In the latter case, make the ":break"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1215 * pending for execution at the ":endtry". */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1216 idx = cleanup_conditionals(cstack, CSF_WHILE | CSF_FOR, TRUE);
840
2c885fab04e3 updated for version 7.0e06
vimboss
parents: 839
diff changeset
1217 if (idx >= 0 && !(cstack->cs_flags[idx] & (CSF_WHILE | CSF_FOR)))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1218 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1219 cstack->cs_pending[idx] = CSTP_BREAK;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1220 report_make_pending(CSTP_BREAK, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1221 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1222 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1223 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1224
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1225 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1226 * ":endwhile" and ":endfor"
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1227 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1228 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1229 ex_endwhile(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1230 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1231 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1232 struct condstack *cstack = eap->cstack;
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1233 int idx;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1234 char_u *err;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1235 int csf;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1236 int fl;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1237
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1238 if (eap->cmdidx == CMD_endwhile)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1239 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1240 err = e_while;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1241 csf = CSF_WHILE;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1242 }
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1243 else
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1244 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1245 err = e_for;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1246 csf = CSF_FOR;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1247 }
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1248
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1249 if (cstack->cs_looplevel <= 0 || cstack->cs_idx < 0)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1250 eap->errmsg = err;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1251 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1252 {
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1253 fl = cstack->cs_flags[cstack->cs_idx];
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1254 if (!(fl & csf))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1255 {
114
f6e567606d47 updated for version 7.0041
vimboss
parents: 79
diff changeset
1256 /* If we are in a ":while" or ":for" but used the wrong endloop
f6e567606d47 updated for version 7.0041
vimboss
parents: 79
diff changeset
1257 * command, do not rewind to the next enclosing ":for"/":while". */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1258 if (fl & CSF_WHILE)
114
f6e567606d47 updated for version 7.0041
vimboss
parents: 79
diff changeset
1259 eap->errmsg = (char_u *)_("E732: Using :endfor with :while");
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1260 else if (fl & CSF_FOR)
114
f6e567606d47 updated for version 7.0041
vimboss
parents: 79
diff changeset
1261 eap->errmsg = (char_u *)_("E733: Using :endwhile with :for");
f6e567606d47 updated for version 7.0041
vimboss
parents: 79
diff changeset
1262 }
f6e567606d47 updated for version 7.0041
vimboss
parents: 79
diff changeset
1263 if (!(fl & (CSF_WHILE | CSF_FOR)))
f6e567606d47 updated for version 7.0041
vimboss
parents: 79
diff changeset
1264 {
f6e567606d47 updated for version 7.0041
vimboss
parents: 79
diff changeset
1265 if (!(fl & CSF_TRY))
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1266 eap->errmsg = e_endif;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1267 else if (fl & CSF_FINALLY)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1268 eap->errmsg = e_endtry;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1269 /* Try to find the matching ":while" and report what's missing. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1270 for (idx = cstack->cs_idx; idx > 0; --idx)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1271 {
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1272 fl = cstack->cs_flags[idx];
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1273 if ((fl & CSF_TRY) && !(fl & CSF_FINALLY))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1274 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1275 /* Give up at a try conditional not in its finally clause.
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1276 * Ignore the ":endwhile"/":endfor". */
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1277 eap->errmsg = err;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1278 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1279 }
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1280 if (fl & csf)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1281 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1282 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1283 /* Cleanup and rewind all contained (and unclosed) conditionals. */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1284 (void)cleanup_conditionals(cstack, CSF_WHILE | CSF_FOR, FALSE);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1285 rewind_conditionals(cstack, idx, CSF_TRY, &cstack->cs_trylevel);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1286 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1287
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1288 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1289 * When debugging or a breakpoint was encountered, display the debug
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1290 * prompt (if not already done). This shows the user that an
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1291 * ":endwhile"/":endfor" is executed when the ":while" was not TRUE or
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1292 * after a ":break". Handle a ">quit" debug command as if an
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1293 * interrupt had occurred before the ":endwhile"/":endfor". That is,
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1294 * throw an interrupt exception if appropriate. Doing this here
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1295 * prevents that an exception for a parsing error is discarded when
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1296 * throwing the interrupt exception later on.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1297 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1298 else if (cstack->cs_flags[cstack->cs_idx] & CSF_TRUE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1299 && !(cstack->cs_flags[cstack->cs_idx] & CSF_ACTIVE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1300 && dbg_check_skipped(eap))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1301 (void)do_intthrow(cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1302
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1303 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1304 * Set loop flag, so do_cmdline() will jump back to the matching
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1305 * ":while" or ":for".
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1306 */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1307 cstack->cs_lflags |= CSL_HAD_ENDLOOP;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1308 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1309 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1310
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1311
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1312 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1313 * ":throw expr"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1314 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1315 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1316 ex_throw(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1317 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1318 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1319 char_u *arg = eap->arg;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1320 char_u *value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1321
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1322 if (*arg != NUL && *arg != '|' && *arg != '\n')
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1323 value = eval_to_string_skip(arg, &eap->nextcmd, eap->skip);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1324 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1325 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1326 EMSG(_(e_argreq));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1327 value = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1328 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1329
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1330 /* On error or when an exception is thrown during argument evaluation, do
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1331 * not throw. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1332 if (!eap->skip && value != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1333 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1334 if (throw_exception(value, ET_USER, NULL) == FAIL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1335 vim_free(value);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1336 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1337 do_throw(eap->cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1338 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1339 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1340
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1341 /*
21
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1342 * Throw the current exception through the specified cstack. Common routine
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1343 * for ":throw" (user exception) and error and interrupt exceptions. Also
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1344 * used for rethrowing an uncaught exception.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1345 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1346 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1347 do_throw(cstack)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1348 struct condstack *cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1349 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1350 int idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1351 int inactivate_try = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1352
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1353 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1354 * Cleanup and inactivate up to the next surrounding try conditional that
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1355 * is not in its finally clause. Normally, do not inactivate the try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1356 * conditional itself, so that its ACTIVE flag can be tested below. But
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1357 * if a previous error or interrupt has not been converted to an exception,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1358 * inactivate the try conditional, too, as if the conversion had been done,
21
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1359 * and reset the did_emsg or got_int flag, so this won't happen again at
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1360 * the next surrounding try conditional.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1361 */
1880
e5602d92da8c updated for version 7.2-177
vimboss
parents: 1447
diff changeset
1362 #ifndef THROW_ON_ERROR_TRUE
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1363 if (did_emsg && !THROW_ON_ERROR)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1364 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1365 inactivate_try = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1366 did_emsg = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1367 }
1880
e5602d92da8c updated for version 7.2-177
vimboss
parents: 1447
diff changeset
1368 #endif
e5602d92da8c updated for version 7.2-177
vimboss
parents: 1447
diff changeset
1369 #ifndef THROW_ON_INTERRUPT_TRUE
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1370 if (got_int && !THROW_ON_INTERRUPT)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1371 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1372 inactivate_try = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1373 got_int = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1374 }
1880
e5602d92da8c updated for version 7.2-177
vimboss
parents: 1447
diff changeset
1375 #endif
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1376 idx = cleanup_conditionals(cstack, 0, inactivate_try);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1377 if (idx >= 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1378 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1379 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1380 * If this try conditional is active and we are before its first
21
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1381 * ":catch", set THROWN so that the ":catch" commands will check
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1382 * whether the exception matches. When the exception came from any of
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1383 * the catch clauses, it will be made pending at the ":finally" (if
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1384 * present) and rethrown at the ":endtry". This will also happen if
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1385 * the try conditional is inactive. This is the case when we are
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1386 * throwing an exception due to an error or interrupt on the way from
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1387 * a preceding ":continue", ":break", ":return", ":finish", error or
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1388 * interrupt (not converted to an exception) to the finally clause or
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1389 * from a preceding throw of a user or error or interrupt exception to
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1390 * the matching catch clause or the finally clause.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1391 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1392 if (!(cstack->cs_flags[idx] & CSF_CAUGHT))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1393 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1394 if (cstack->cs_flags[idx] & CSF_ACTIVE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1395 cstack->cs_flags[idx] |= CSF_THROWN;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1396 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1397 /* THROWN may have already been set for a catchable exception
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1398 * that has been discarded. Ensure it is reset for the new
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1399 * exception. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1400 cstack->cs_flags[idx] &= ~CSF_THROWN;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1401 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1402 cstack->cs_flags[idx] &= ~CSF_ACTIVE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1403 cstack->cs_exception[idx] = current_exception;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1404 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1405 #if 0
21
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1406 /* TODO: Add optimization below. Not yet done because of interface
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1407 * problems to eval.c and ex_cmds2.c. (Servatius) */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1408 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1409 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1410 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1411 * There are no catch clauses to check or finally clauses to execute.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1412 * End the current script or function. The exception will be rethrown
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1413 * in the caller.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1414 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1415 if (getline_equal(eap->getline, eap->cookie, get_func_line))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1416 current_funccal->returned = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1417 elseif (eap->get_func_line == getsourceline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1418 ((struct source_cookie *)eap->cookie)->finished = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1419 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1420 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1421
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1422 did_throw = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1423 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1424
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1425 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1426 * ":try"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1427 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1428 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1429 ex_try(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1430 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1431 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1432 int skip;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1433 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1434
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1435 if (cstack->cs_idx == CSTACK_LEN - 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1436 eap->errmsg = (char_u *)N_("E601: :try nesting too deep");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1437 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1438 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1439 ++cstack->cs_idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1440 ++cstack->cs_trylevel;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1441 cstack->cs_flags[cstack->cs_idx] = CSF_TRY;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1442 cstack->cs_pending[cstack->cs_idx] = CSTP_NONE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1443
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1444 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1445 * Don't do something after an error, interrupt, or throw, or when there
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1446 * is a surrounding conditional and it was not active.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1447 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1448 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1449 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1450
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1451 if (!skip)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1452 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1453 /* Set ACTIVE and TRUE. TRUE means that the corresponding ":catch"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1454 * commands should check for a match if an exception is thrown and
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1455 * that the finally clause needs to be executed. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1456 cstack->cs_flags[cstack->cs_idx] |= CSF_ACTIVE | CSF_TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1457
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1458 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1459 * ":silent!", even when used in a try conditional, disables
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1460 * displaying of error messages and conversion of errors to
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1461 * exceptions. When the silent commands again open a try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1462 * conditional, save "emsg_silent" and reset it so that errors are
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1463 * again converted to exceptions. The value is restored when that
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1464 * try conditional is left. If it is left normally, the commands
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1465 * following the ":endtry" are again silent. If it is left by
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1466 * a ":continue", ":break", ":return", or ":finish", the commands
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1467 * executed next are again silent. If it is left due to an
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1468 * aborting error, an interrupt, or an exception, restoring
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1469 * "emsg_silent" does not matter since we are already in the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1470 * aborting state and/or the exception has already been thrown.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1471 * The effect is then just freeing the memory that was allocated
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1472 * to save the value.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1473 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1474 if (emsg_silent)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1475 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1476 eslist_T *elem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1477
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1478 elem = (eslist_T *)alloc((unsigned)sizeof(struct eslist_elem));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1479 if (elem == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1480 EMSG(_(e_outofmem));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1481 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1482 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1483 elem->saved_emsg_silent = emsg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1484 elem->next = cstack->cs_emsg_silent_list;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1485 cstack->cs_emsg_silent_list = elem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1486 cstack->cs_flags[cstack->cs_idx] |= CSF_SILENT;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1487 emsg_silent = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1488 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1489 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1490 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1491
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1492 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1493 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1494
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1495 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1496 * ":catch /{pattern}/" and ":catch"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1497 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1498 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1499 ex_catch(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1500 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1501 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1502 int idx = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1503 int give_up = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1504 int skip = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1505 int caught = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1506 char_u *end;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1507 int save_char = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1508 char_u *save_cpo;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1509 regmatch_T regmatch;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1510 int prev_got_int;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1511 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1512 char_u *pat;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1513
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1514 if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1515 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1516 eap->errmsg = (char_u *)N_("E603: :catch without :try");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1517 give_up = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1518 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1519 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1520 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1521 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1522 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1523 /* Report what's missing if the matching ":try" is not in its
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1524 * finally clause. */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1525 eap->errmsg = get_end_emsg(cstack);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1526 skip = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1527 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1528 for (idx = cstack->cs_idx; idx > 0; --idx)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1529 if (cstack->cs_flags[idx] & CSF_TRY)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1530 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1531 if (cstack->cs_flags[idx] & CSF_FINALLY)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1532 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1533 /* Give up for a ":catch" after ":finally" and ignore it.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1534 * Just parse. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1535 eap->errmsg = (char_u *)N_("E604: :catch after :finally");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1536 give_up = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1537 }
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1538 else
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1539 rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR,
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1540 &cstack->cs_looplevel);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1541 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1542
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1543 if (ends_excmd(*eap->arg)) /* no argument, catch all errors */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1544 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1545 pat = (char_u *)".*";
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1546 end = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1547 eap->nextcmd = find_nextcmd(eap->arg);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1548 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1549 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1550 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1551 pat = eap->arg + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1552 end = skip_regexp(pat, *eap->arg, TRUE, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1553 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1554
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1555 if (!give_up)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1556 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1557 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1558 * Don't do something when no exception has been thrown or when the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1559 * corresponding try block never got active (because of an inactive
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1560 * surrounding conditional or after an error or interrupt or throw).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1561 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1562 if (!did_throw || !(cstack->cs_flags[idx] & CSF_TRUE))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1563 skip = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1564
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1565 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1566 * Check for a match only if an exception is thrown but not caught by
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1567 * a previous ":catch". An exception that has replaced a discarded
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1568 * exception is not checked (THROWN is not set then).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1569 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1570 if (!skip && (cstack->cs_flags[idx] & CSF_THROWN)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1571 && !(cstack->cs_flags[idx] & CSF_CAUGHT))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1572 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1573 if (end != NULL && *end != NUL && !ends_excmd(*skipwhite(end + 1)))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1574 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1575 EMSG(_(e_trailing));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1576 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1577 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1578
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1579 /* When debugging or a breakpoint was encountered, display the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1580 * debug prompt (if not already done) before checking for a match.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1581 * This is a helpful hint for the user when the regular expression
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1582 * matching fails. Handle a ">quit" debug command as if an
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1583 * interrupt had occurred before the ":catch". That is, discard
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1584 * the original exception, replace it by an interrupt exception,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1585 * and don't catch it in this try block. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1586 if (!dbg_check_skipped(eap) || !do_intthrow(cstack))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1587 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1588 /* Terminate the pattern and avoid the 'l' flag in 'cpoptions'
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1589 * while compiling it. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1590 if (end != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1591 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1592 save_char = *end;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1593 *end = NUL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1594 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1595 save_cpo = p_cpo;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1596 p_cpo = (char_u *)"";
1333
01762f635bab updated for version 7.1-047
vimboss
parents: 1214
diff changeset
1597 regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1598 regmatch.rm_ic = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1599 if (end != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1600 *end = save_char;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1601 p_cpo = save_cpo;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1602 if (regmatch.regprog == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1603 EMSG2(_(e_invarg2), pat);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1604 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1605 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1606 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1607 * Save the value of got_int and reset it. We don't want
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1608 * a previous interruption cancel matching, only hitting
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1609 * CTRL-C while matching should abort it.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1610 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1611 prev_got_int = got_int;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1612 got_int = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1613 caught = vim_regexec_nl(&regmatch, current_exception->value,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1614 (colnr_T)0);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1615 got_int |= prev_got_int;
4805
66803af09906 updated for version 7.3.1149
Bram Moolenaar <bram@vim.org>
parents: 4352
diff changeset
1616 vim_regfree(regmatch.regprog);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1617 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1618 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1619 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1620
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1621 if (caught)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1622 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1623 /* Make this ":catch" clause active and reset did_emsg, got_int,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1624 * and did_throw. Put the exception on the caught stack. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1625 cstack->cs_flags[idx] |= CSF_ACTIVE | CSF_CAUGHT;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1626 did_emsg = got_int = did_throw = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1627 catch_exception((except_T *)cstack->cs_exception[idx]);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1628 /* It's mandatory that the current exception is stored in the cstack
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1629 * so that it can be discarded at the next ":catch", ":finally", or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1630 * ":endtry" or when the catch clause is left by a ":continue",
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1631 * ":break", ":return", ":finish", error, interrupt, or another
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1632 * exception. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1633 if (cstack->cs_exception[cstack->cs_idx] != current_exception)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1634 EMSG(_(e_internal));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1635 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1636 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1637 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1638 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1639 * If there is a preceding catch clause and it caught the exception,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1640 * finish the exception now. This happens also after errors except
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1641 * when this ":catch" was after the ":finally" or not within
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1642 * a ":try". Make the try conditional inactive so that the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1643 * following catch clauses are skipped. On an error or interrupt
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1644 * after the preceding try block or catch clause was left by
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1645 * a ":continue", ":break", ":return", or ":finish", discard the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1646 * pending action.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1647 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1648 cleanup_conditionals(cstack, CSF_TRY, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1649 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1650 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1651
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1652 if (end != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1653 eap->nextcmd = find_nextcmd(end);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1654 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1655
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1656 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1657 * ":finally"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1658 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1659 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1660 ex_finally(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1661 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1662 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1663 int idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1664 int skip = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1665 int pending = CSTP_NONE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1666 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1667
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1668 if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1669 eap->errmsg = (char_u *)N_("E606: :finally without :try");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1670 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1671 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1672 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1673 {
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1674 eap->errmsg = get_end_emsg(cstack);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1675 for (idx = cstack->cs_idx - 1; idx > 0; --idx)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1676 if (cstack->cs_flags[idx] & CSF_TRY)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1677 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1678 /* Make this error pending, so that the commands in the following
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1679 * finally clause can be executed. This overrules also a pending
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1680 * ":continue", ":break", ":return", or ":finish". */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1681 pending = CSTP_ERROR;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1682 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1683 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1684 idx = cstack->cs_idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1685
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1686 if (cstack->cs_flags[idx] & CSF_FINALLY)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1687 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1688 /* Give up for a multiple ":finally" and ignore it. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1689 eap->errmsg = (char_u *)N_("E607: multiple :finally");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1690 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1691 }
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1692 rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR,
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1693 &cstack->cs_looplevel);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1694
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1695 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1696 * Don't do something when the corresponding try block never got active
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1697 * (because of an inactive surrounding conditional or after an error or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1698 * interrupt or throw) or for a ":finally" without ":try" or a multiple
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1699 * ":finally". After every other error (did_emsg or the conditional
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1700 * errors detected above) or after an interrupt (got_int) or an
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1701 * exception (did_throw), the finally clause must be executed.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1702 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1703 skip = !(cstack->cs_flags[cstack->cs_idx] & CSF_TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1704
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1705 if (!skip)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1706 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1707 /* When debugging or a breakpoint was encountered, display the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1708 * debug prompt (if not already done). The user then knows that the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1709 * finally clause is executed. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1710 if (dbg_check_skipped(eap))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1711 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1712 /* Handle a ">quit" debug command as if an interrupt had
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1713 * occurred before the ":finally". That is, discard the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1714 * original exception and replace it by an interrupt
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1715 * exception. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1716 (void)do_intthrow(cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1717 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1718
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1719 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1720 * If there is a preceding catch clause and it caught the exception,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1721 * finish the exception now. This happens also after errors except
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1722 * when this is a multiple ":finally" or one not within a ":try".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1723 * After an error or interrupt, this also discards a pending
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1724 * ":continue", ":break", ":finish", or ":return" from the preceding
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1725 * try block or catch clause.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1726 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1727 cleanup_conditionals(cstack, CSF_TRY, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1728
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1729 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1730 * Make did_emsg, got_int, did_throw pending. If set, they overrule
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1731 * a pending ":continue", ":break", ":return", or ":finish". Then
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1732 * we have particularly to discard a pending return value (as done
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1733 * by the call to cleanup_conditionals() above when did_emsg or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1734 * got_int is set). The pending values are restored by the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1735 * ":endtry", except if there is a new error, interrupt, exception,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1736 * ":continue", ":break", ":return", or ":finish" in the following
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1737 * finally clause. A missing ":endwhile", ":endfor" or ":endif"
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1738 * detected here is treated as if did_emsg and did_throw had
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1739 * already been set, respectively in case that the error is not
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1740 * converted to an exception, did_throw had already been unset.
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1741 * We must not set did_emsg here since that would suppress the
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1742 * error message.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1743 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1744 if (pending == CSTP_ERROR || did_emsg || got_int || did_throw)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1745 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1746 if (cstack->cs_pending[cstack->cs_idx] == CSTP_RETURN)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1747 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1748 report_discard_pending(CSTP_RETURN,
68
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
1749 cstack->cs_rettv[cstack->cs_idx]);
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
1750 discard_pending_return(cstack->cs_rettv[cstack->cs_idx]);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1751 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1752 if (pending == CSTP_ERROR && !did_emsg)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1753 pending |= (THROW_ON_ERROR) ? CSTP_THROW : 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1754 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1755 pending |= did_throw ? CSTP_THROW : 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1756 pending |= did_emsg ? CSTP_ERROR : 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1757 pending |= got_int ? CSTP_INTERRUPT : 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1758 cstack->cs_pending[cstack->cs_idx] = pending;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1759
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1760 /* It's mandatory that the current exception is stored in the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1761 * cstack so that it can be rethrown at the ":endtry" or be
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1762 * discarded if the finally clause is left by a ":continue",
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1763 * ":break", ":return", ":finish", error, interrupt, or another
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1764 * exception. When emsg() is called for a missing ":endif" or
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1765 * a missing ":endwhile"/":endfor" detected here, the
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1766 * exception will be discarded. */
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1767 if (did_throw && cstack->cs_exception[cstack->cs_idx]
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1768 != current_exception)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1769 EMSG(_(e_internal));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1770 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1771
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1772 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1773 * Set CSL_HAD_FINA, so do_cmdline() will reset did_emsg,
22
cc049b00ee70 updated for version 7.0014
vimboss
parents: 21
diff changeset
1774 * got_int, and did_throw and make the finally clause active.
cc049b00ee70 updated for version 7.0014
vimboss
parents: 21
diff changeset
1775 * This will happen after emsg() has been called for a missing
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1776 * ":endif" or a missing ":endwhile"/":endfor" detected here, so
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1777 * that the following finally clause will be executed even then.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1778 */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1779 cstack->cs_lflags |= CSL_HAD_FINA;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1780 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1781 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1782 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1783
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1784 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1785 * ":endtry"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1786 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1787 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1788 ex_endtry(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1789 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1790 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1791 int idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1792 int skip;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1793 int rethrow = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1794 int pending = CSTP_NONE;
68
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
1795 void *rettv = NULL;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1796 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1797
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1798 if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1799 eap->errmsg = (char_u *)N_("E602: :endtry without :try");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1800 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1801 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1802 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1803 * Don't do something after an error, interrupt or throw in the try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1804 * block, catch clause, or finally clause preceding this ":endtry" or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1805 * when an error or interrupt occurred after a ":continue", ":break",
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1806 * ":return", or ":finish" in a try block or catch clause preceding this
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1807 * ":endtry" or when the try block never got active (because of an
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1808 * inactive surrounding conditional or after an error or interrupt or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1809 * throw) or when there is a surrounding conditional and it has been
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1810 * made inactive by a ":continue", ":break", ":return", or ":finish" in
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1811 * the finally clause. The latter case need not be tested since then
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1812 * anything pending has already been discarded. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1813 skip = did_emsg || got_int || did_throw ||
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1814 !(cstack->cs_flags[cstack->cs_idx] & CSF_TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1815
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1816 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1817 {
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1818 eap->errmsg = get_end_emsg(cstack);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1819 /* Find the matching ":try" and report what's missing. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1820 idx = cstack->cs_idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1821 do
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1822 --idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1823 while (idx > 0 && !(cstack->cs_flags[idx] & CSF_TRY));
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1824 rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR,
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1825 &cstack->cs_looplevel);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1826 skip = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1827
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1828 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1829 * If an exception is being thrown, discard it to prevent it from
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1830 * being rethrown at the end of this function. It would be
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1831 * discarded by the error message, anyway. Resets did_throw.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1832 * This does not affect the script termination due to the error
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1833 * since "trylevel" is decremented after emsg() has been called.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1834 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1835 if (did_throw)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1836 discard_current_exception();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1837 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1838 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1839 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1840 idx = cstack->cs_idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1841
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1842 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1843 * If we stopped with the exception currently being thrown at this
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1844 * try conditional since we didn't know that it doesn't have
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1845 * a finally clause, we need to rethrow it after closing the try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1846 * conditional.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1847 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1848 if (did_throw && (cstack->cs_flags[idx] & CSF_TRUE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1849 && !(cstack->cs_flags[idx] & CSF_FINALLY))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1850 rethrow = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1851 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1852
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1853 /* If there was no finally clause, show the user when debugging or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1854 * a breakpoint was encountered that the end of the try conditional has
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1855 * been reached: display the debug prompt (if not already done). Do
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1856 * this on normal control flow or when an exception was thrown, but not
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1857 * on an interrupt or error not converted to an exception or when
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1858 * a ":break", ":continue", ":return", or ":finish" is pending. These
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1859 * actions are carried out immediately.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1860 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1861 if ((rethrow || (!skip
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1862 && !(cstack->cs_flags[idx] & CSF_FINALLY)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1863 && !cstack->cs_pending[idx]))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1864 && dbg_check_skipped(eap))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1865 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1866 /* Handle a ">quit" debug command as if an interrupt had occurred
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1867 * before the ":endtry". That is, throw an interrupt exception and
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1868 * set "skip" and "rethrow". */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1869 if (got_int)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1870 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1871 skip = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1872 (void)do_intthrow(cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1873 /* The do_intthrow() call may have reset did_throw or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1874 * cstack->cs_pending[idx].*/
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1875 rethrow = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1876 if (did_throw && !(cstack->cs_flags[idx] & CSF_FINALLY))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1877 rethrow = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1878 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1879 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1880
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1881 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1882 * If a ":return" is pending, we need to resume it after closing the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1883 * try conditional; remember the return value. If there was a finally
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1884 * clause making an exception pending, we need to rethrow it. Make it
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1885 * the exception currently being thrown.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1886 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1887 if (!skip)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1888 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1889 pending = cstack->cs_pending[idx];
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1890 cstack->cs_pending[idx] = CSTP_NONE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1891 if (pending == CSTP_RETURN)
68
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
1892 rettv = cstack->cs_rettv[idx];
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1893 else if (pending & CSTP_THROW)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1894 current_exception = cstack->cs_exception[idx];
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1895 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1896
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1897 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1898 * Discard anything pending on an error, interrupt, or throw in the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1899 * finally clause. If there was no ":finally", discard a pending
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1900 * ":continue", ":break", ":return", or ":finish" if an error or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1901 * interrupt occurred afterwards, but before the ":endtry" was reached.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1902 * If an exception was caught by the last of the catch clauses and there
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1903 * was no finally clause, finish the exception now. This happens also
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1904 * after errors except when this ":endtry" is not within a ":try".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1905 * Restore "emsg_silent" if it has been reset by this try conditional.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1906 */
840
2c885fab04e3 updated for version 7.0e06
vimboss
parents: 839
diff changeset
1907 (void)cleanup_conditionals(cstack, CSF_TRY | CSF_SILENT, TRUE);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1908
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1909 --cstack->cs_idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1910 --cstack->cs_trylevel;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1911
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1912 if (!skip)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1913 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1914 report_resume_pending(pending,
68
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
1915 (pending == CSTP_RETURN) ? rettv :
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1916 (pending & CSTP_THROW) ? (void *)current_exception : NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1917 switch (pending)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1918 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1919 case CSTP_NONE:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1920 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1921
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1922 /* Reactivate a pending ":continue", ":break", ":return",
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1923 * ":finish" from the try block or a catch clause of this try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1924 * conditional. This is skipped, if there was an error in an
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1925 * (unskipped) conditional command or an interrupt afterwards
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1926 * or if the finally clause is present and executed a new error,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1927 * interrupt, throw, ":continue", ":break", ":return", or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1928 * ":finish". */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1929 case CSTP_CONTINUE:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1930 ex_continue(eap);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1931 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1932 case CSTP_BREAK:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1933 ex_break(eap);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1934 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1935 case CSTP_RETURN:
68
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
1936 do_return(eap, FALSE, FALSE, rettv);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1937 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1938 case CSTP_FINISH:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1939 do_finish(eap, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1940 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1941
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1942 /* When the finally clause was entered due to an error,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1943 * interrupt or throw (as opposed to a ":continue", ":break",
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1944 * ":return", or ":finish"), restore the pending values of
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1945 * did_emsg, got_int, and did_throw. This is skipped, if there
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1946 * was a new error, interrupt, throw, ":continue", ":break",
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1947 * ":return", or ":finish". in the finally clause. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1948 default:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1949 if (pending & CSTP_ERROR)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1950 did_emsg = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1951 if (pending & CSTP_INTERRUPT)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1952 got_int = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1953 if (pending & CSTP_THROW)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1954 rethrow = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1955 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1956 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1957 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1958
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1959 if (rethrow)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1960 /* Rethrow the current exception (within this cstack). */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1961 do_throw(cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1962 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1963 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1964
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1965 /*
36
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1966 * enter_cleanup() and leave_cleanup()
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1967 *
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1968 * Functions to be called before/after invoking a sequence of autocommands for
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1969 * cleanup for a failed command. (Failure means here that a call to emsg()
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1970 * has been made, an interrupt occurred, or there is an uncaught exception
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1971 * from a previous autocommand execution of the same command.)
24
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1972 *
36
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1973 * Call enter_cleanup() with a pointer to a cleanup_T and pass the same
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1974 * pointer to leave_cleanup(). The cleanup_T structure stores the pending
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1975 * error/interrupt/exception state.
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1976 */
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1977
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1978 /*
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1979 * This function works a bit like ex_finally() except that there was not
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1980 * actually an extra try block around the part that failed and an error or
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1981 * interrupt has not (yet) been converted to an exception. This function
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1982 * saves the error/interrupt/ exception state and prepares for the call to
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1983 * do_cmdline() that is going to be made for the cleanup autocommand
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1984 * execution.
24
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1985 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1986 void
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1987 enter_cleanup(csp)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1988 cleanup_T *csp;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1989 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1990 int pending = CSTP_NONE;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1991
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1992 /*
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1993 * Postpone did_emsg, got_int, did_throw. The pending values will be
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1994 * restored by leave_cleanup() except if there was an aborting error,
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1995 * interrupt, or uncaught exception after this function ends.
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1996 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1997 if (did_emsg || got_int || did_throw || need_rethrow)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1998 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1999 csp->pending = (did_emsg ? CSTP_ERROR : 0)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2000 | (got_int ? CSTP_INTERRUPT : 0)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2001 | (did_throw ? CSTP_THROW : 0)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2002 | (need_rethrow ? CSTP_THROW : 0);
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2003
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2004 /* If we are currently throwing an exception (did_throw), save it as
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2005 * well. On an error not yet converted to an exception, update
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2006 * "force_abort" and reset "cause_abort" (as do_errthrow() would do).
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2007 * This is needed for the do_cmdline() call that is going to be made
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2008 * for autocommand execution. We need not save *msg_list because
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2009 * there is an extra instance for every call of do_cmdline(), anyway.
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2010 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2011 if (did_throw || need_rethrow)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2012 csp->exception = current_exception;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2013 else
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2014 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2015 csp->exception = NULL;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2016 if (did_emsg)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2017 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2018 force_abort |= cause_abort;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2019 cause_abort = FALSE;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2020 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2021 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2022 did_emsg = got_int = did_throw = need_rethrow = FALSE;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2023
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2024 /* Report if required by the 'verbose' option or when debugging. */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2025 report_make_pending(pending, csp->exception);
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2026 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2027 else
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2028 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2029 csp->pending = CSTP_NONE;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2030 csp->exception = NULL;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2031 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2032 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2033
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2034 /*
36
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
2035 * See comment above enter_cleanup() for how this function is used.
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
2036 *
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
2037 * This function is a bit like ex_endtry() except that there was not actually
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
2038 * an extra try block around the part that failed and an error or interrupt
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
2039 * had not (yet) been converted to an exception when the cleanup autocommand
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
2040 * sequence was invoked.
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
2041 *
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
2042 * This function has to be called with the address of the cleanup_T structure
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
2043 * filled by enter_cleanup() as an argument; it restores the error/interrupt/
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
2044 * exception state saved by that function - except there was an aborting
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
2045 * error, an interrupt or an uncaught exception during execution of the
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
2046 * cleanup autocommands. In the latter case, the saved error/interrupt/
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
2047 * exception state is discarded.
24
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2048 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2049 void
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2050 leave_cleanup(csp)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2051 cleanup_T *csp;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2052 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2053 int pending = csp->pending;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2054
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2055 if (pending == CSTP_NONE) /* nothing to do */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2056 return;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2057
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2058 /* If there was an aborting error, an interrupt, or an uncaught exception
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2059 * after the corresponding call to enter_cleanup(), discard what has been
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2060 * made pending by it. Report this to the user if required by the
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2061 * 'verbose' option or when debugging. */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2062 if (aborting() || need_rethrow)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2063 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2064 if (pending & CSTP_THROW)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2065 /* Cancel the pending exception (includes report). */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2066 discard_exception((except_T *)csp->exception, FALSE);
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2067 else
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2068 report_discard_pending(pending, NULL);
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2069
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2070 /* If an error was about to be converted to an exception when
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2071 * enter_cleanup() was called, free the message list. */
1046
26ff011aec2d updated for version 7.0-172
vimboss
parents: 840
diff changeset
2072 if (msg_list != NULL)
5517
064e2a080e2e updated for version 7.4.107
Bram Moolenaar <bram@vim.org>
parents: 4805
diff changeset
2073 free_global_msglist();
24
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2074 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2075
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2076 /*
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2077 * If there was no new error, interrupt, or throw between the calls
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2078 * to enter_cleanup() and leave_cleanup(), restore the pending
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2079 * error/interrupt/exception state.
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2080 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2081 else
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2082 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2083 /*
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2084 * If there was an exception being thrown when enter_cleanup() was
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2085 * called, we need to rethrow it. Make it the exception currently
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2086 * being thrown.
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2087 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2088 if (pending & CSTP_THROW)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2089 current_exception = csp->exception;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2090
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2091 /*
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2092 * If an error was about to be converted to an exception when
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2093 * enter_cleanup() was called, let "cause_abort" take the part of
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2094 * "force_abort" (as done by cause_errthrow()).
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2095 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2096 else if (pending & CSTP_ERROR)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2097 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2098 cause_abort = force_abort;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2099 force_abort = FALSE;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2100 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2101
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2102 /*
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2103 * Restore the pending values of did_emsg, got_int, and did_throw.
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2104 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2105 if (pending & CSTP_ERROR)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2106 did_emsg = TRUE;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2107 if (pending & CSTP_INTERRUPT)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2108 got_int = TRUE;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2109 if (pending & CSTP_THROW)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2110 need_rethrow = TRUE; /* did_throw will be set by do_one_cmd() */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2111
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2112 /* Report if required by the 'verbose' option or when debugging. */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2113 report_resume_pending(pending,
36
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
2114 (pending & CSTP_THROW) ? (void *)current_exception : NULL);
24
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2115 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2116 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2117
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2118
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2119 /*
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2120 * Make conditionals inactive and discard what's pending in finally clauses
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2121 * until the conditional type searched for or a try conditional not in its
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
2122 * finally clause is reached. If this is in an active catch clause, finish
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
2123 * the caught exception.
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
2124 * Return the cstack index where the search stopped.
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2125 * Values used for "searched_cond" are (CSF_WHILE | CSF_FOR) or CSF_TRY or 0,
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2126 * the latter meaning the innermost try conditional not in its finally clause.
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2127 * "inclusive" tells whether the conditional searched for should be made
4352
04736b4030ec updated for version 7.3.925
Bram Moolenaar <bram@vim.org>
parents: 1880
diff changeset
2128 * inactive itself (a try conditional not in its finally clause possibly find
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2129 * before is always made inactive). If "inclusive" is TRUE and
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2130 * "searched_cond" is CSF_TRY|CSF_SILENT, the saved former value of
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2131 * "emsg_silent", if reset when the try conditional finally reached was
4352
04736b4030ec updated for version 7.3.925
Bram Moolenaar <bram@vim.org>
parents: 1880
diff changeset
2132 * entered, is restored (used by ex_endtry()). This is normally done only
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2133 * when such a try conditional is left.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2134 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2135 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2136 cleanup_conditionals(cstack, searched_cond, inclusive)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2137 struct condstack *cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2138 int searched_cond;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2139 int inclusive;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2140 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2141 int idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2142 int stop = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2143
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2144 for (idx = cstack->cs_idx; idx >= 0; --idx)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2145 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2146 if (cstack->cs_flags[idx] & CSF_TRY)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2147 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2148 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2149 * Discard anything pending in a finally clause and continue the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2150 * search. There may also be a pending ":continue", ":break",
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2151 * ":return", or ":finish" before the finally clause. We must not
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2152 * discard it, unless an error or interrupt occurred afterwards.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2153 */
359
6c62b9b939bd updated for version 7.0093
vimboss
parents: 293
diff changeset
2154 if (did_emsg || got_int || (cstack->cs_flags[idx] & CSF_FINALLY))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2155 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2156 switch (cstack->cs_pending[idx])
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2157 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2158 case CSTP_NONE:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2159 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2160
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2161 case CSTP_CONTINUE:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2162 case CSTP_BREAK:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2163 case CSTP_FINISH:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2164 report_discard_pending(cstack->cs_pending[idx], NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2165 cstack->cs_pending[idx] = CSTP_NONE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2166 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2167
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2168 case CSTP_RETURN:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2169 report_discard_pending(CSTP_RETURN,
68
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
2170 cstack->cs_rettv[idx]);
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
2171 discard_pending_return(cstack->cs_rettv[idx]);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2172 cstack->cs_pending[idx] = CSTP_NONE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2173 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2174
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2175 default:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2176 if (cstack->cs_flags[idx] & CSF_FINALLY)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2177 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2178 if (cstack->cs_pending[idx] & CSTP_THROW)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2179 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2180 /* Cancel the pending exception. This is in the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2181 * finally clause, so that the stack of the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2182 * caught exceptions is not involved. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2183 discard_exception((except_T *)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2184 cstack->cs_exception[idx],
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2185 FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2186 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2187 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2188 report_discard_pending(cstack->cs_pending[idx],
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2189 NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2190 cstack->cs_pending[idx] = CSTP_NONE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2191 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2192 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2193 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2194 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2195
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2196 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2197 * Stop at a try conditional not in its finally clause. If this try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2198 * conditional is in an active catch clause, finish the caught
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2199 * exception.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2200 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2201 if (!(cstack->cs_flags[idx] & CSF_FINALLY))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2202 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2203 if ((cstack->cs_flags[idx] & CSF_ACTIVE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2204 && (cstack->cs_flags[idx] & CSF_CAUGHT))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2205 finish_exception((except_T *)cstack->cs_exception[idx]);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2206 /* Stop at this try conditional - except the try block never
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2207 * got active (because of an inactive surrounding conditional
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2208 * or when the ":try" appeared after an error or interrupt or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2209 * throw). */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2210 if (cstack->cs_flags[idx] & CSF_TRUE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2211 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2212 if (searched_cond == 0 && !inclusive)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2213 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2214 stop = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2215 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2216 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2217 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2218
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2219 /* Stop on the searched conditional type (even when the surrounding
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2220 * conditional is not active or something has been made pending).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2221 * If "inclusive" is TRUE and "searched_cond" is CSF_TRY|CSF_SILENT,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2222 * check first whether "emsg_silent" needs to be restored. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2223 if (cstack->cs_flags[idx] & searched_cond)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2224 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2225 if (!inclusive)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2226 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2227 stop = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2228 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2229 cstack->cs_flags[idx] &= ~CSF_ACTIVE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2230 if (stop && searched_cond != (CSF_TRY | CSF_SILENT))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2231 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2232
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2233 /*
1214
a91a2e0c4108 updated for version 7.1b
vimboss
parents: 1046
diff changeset
2234 * When leaving a try conditional that reset "emsg_silent" on its
a91a2e0c4108 updated for version 7.1b
vimboss
parents: 1046
diff changeset
2235 * entry after saving the original value, restore that value here and
a91a2e0c4108 updated for version 7.1b
vimboss
parents: 1046
diff changeset
2236 * free the memory used to store it.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2237 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2238 if ((cstack->cs_flags[idx] & CSF_TRY)
359
6c62b9b939bd updated for version 7.0093
vimboss
parents: 293
diff changeset
2239 && (cstack->cs_flags[idx] & CSF_SILENT))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2240 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2241 eslist_T *elem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2242
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2243 elem = cstack->cs_emsg_silent_list;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2244 cstack->cs_emsg_silent_list = elem->next;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2245 emsg_silent = elem->saved_emsg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2246 vim_free(elem);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2247 cstack->cs_flags[idx] &= ~CSF_SILENT;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2248 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2249 if (stop)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2250 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2251 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2252 return idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2253 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2254
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2255 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2256 * Return an appropriate error message for a missing endwhile/endfor/endif.
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2257 */
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2258 static char_u *
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2259 get_end_emsg(cstack)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2260 struct condstack *cstack;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2261 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2262 if (cstack->cs_flags[cstack->cs_idx] & CSF_WHILE)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2263 return e_endwhile;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2264 if (cstack->cs_flags[cstack->cs_idx] & CSF_FOR)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2265 return e_endfor;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2266 return e_endif;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2267 }
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2268
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2269
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2270 /*
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2271 * Rewind conditionals until index "idx" is reached. "cond_type" and
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2272 * "cond_level" specify a conditional type and the address of a level variable
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2273 * which is to be decremented with each skipped conditional of the specified
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2274 * type.
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
2275 * Also free "for info" structures where needed.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2276 */
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
2277 void
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2278 rewind_conditionals(cstack, idx, cond_type, cond_level)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2279 struct condstack *cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2280 int idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2281 int cond_type;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2282 int *cond_level;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2283 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2284 while (cstack->cs_idx > idx)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2285 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2286 if (cstack->cs_flags[cstack->cs_idx] & cond_type)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2287 --*cond_level;
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
2288 if (cstack->cs_flags[cstack->cs_idx] & CSF_FOR)
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
2289 free_for_info(cstack->cs_forinfo[cstack->cs_idx]);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2290 --cstack->cs_idx;
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vimboss
parents:
diff changeset
2291 }
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vimboss
parents:
diff changeset
2292 }
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vimboss
parents:
diff changeset
2293
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vimboss
parents:
diff changeset
2294 /*
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vimboss
parents:
diff changeset
2295 * ":endfunction" when not after a ":function"
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vimboss
parents:
diff changeset
2296 */
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vimboss
parents:
diff changeset
2297 void
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vimboss
parents:
diff changeset
2298 ex_endfunction(eap)
1880
e5602d92da8c updated for version 7.2-177
vimboss
parents: 1447
diff changeset
2299 exarg_T *eap UNUSED;
7
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vimboss
parents:
diff changeset
2300 {
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vimboss
parents:
diff changeset
2301 EMSG(_("E193: :endfunction not inside a function"));
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vimboss
parents:
diff changeset
2302 }
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vimboss
parents:
diff changeset
2303
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vimboss
parents:
diff changeset
2304 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2305 * Return TRUE if the string "p" looks like a ":while" or ":for" command.
7
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vimboss
parents:
diff changeset
2306 */
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vimboss
parents:
diff changeset
2307 int
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2308 has_loop_cmd(p)
7
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vimboss
parents:
diff changeset
2309 char_u *p;
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vimboss
parents:
diff changeset
2310 {
1447
dac5006b4443 updated for version 7.1-162
vimboss
parents: 1333
diff changeset
2311 int len;
dac5006b4443 updated for version 7.1-162
vimboss
parents: 1333
diff changeset
2312
dac5006b4443 updated for version 7.1-162
vimboss
parents: 1333
diff changeset
2313 /* skip modifiers, white space and ':' */
dac5006b4443 updated for version 7.1-162
vimboss
parents: 1333
diff changeset
2314 for (;;)
dac5006b4443 updated for version 7.1-162
vimboss
parents: 1333
diff changeset
2315 {
dac5006b4443 updated for version 7.1-162
vimboss
parents: 1333
diff changeset
2316 while (*p == ' ' || *p == '\t' || *p == ':')
dac5006b4443 updated for version 7.1-162
vimboss
parents: 1333
diff changeset
2317 ++p;
dac5006b4443 updated for version 7.1-162
vimboss
parents: 1333
diff changeset
2318 len = modifier_len(p);
dac5006b4443 updated for version 7.1-162
vimboss
parents: 1333
diff changeset
2319 if (len == 0)
dac5006b4443 updated for version 7.1-162
vimboss
parents: 1333
diff changeset
2320 break;
dac5006b4443 updated for version 7.1-162
vimboss
parents: 1333
diff changeset
2321 p += len;
dac5006b4443 updated for version 7.1-162
vimboss
parents: 1333
diff changeset
2322 }
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2323 if ((p[0] == 'w' && p[1] == 'h')
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2324 || (p[0] == 'f' && p[1] == 'o' && p[2] == 'r'))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2325 return TRUE;
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vimboss
parents:
diff changeset
2326 return FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2327 }
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vimboss
parents:
diff changeset
2328
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vimboss
parents:
diff changeset
2329 #endif /* FEAT_EVAL */