annotate src/ex_eval.c @ 82:366d9947baf2

updated for version 7.0033
author vimboss
date Fri, 07 Jan 2005 21:48:26 +0000
parents e918d3e340a4
children f6e567606d47
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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 asyncronously 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_INTERRUPT TRUE
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64 #endif
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65
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66 static void catch_exception __ARGS((except_T *excp));
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67 static void finish_exception __ARGS((except_T *excp));
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68 static void discard_exception __ARGS((except_T *excp, int was_finished));
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69 static void report_pending __ARGS((int action, int pending, void *value));
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70
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71 /*
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72 * When several errors appear in a row, setting "force_abort" is delayed until
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73 * the failing command returned. "cause_abort" is set to TRUE meanwhile, in
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74 * order to indicate that situation. This is useful when "force_abort" was set
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75 * during execution of a function call from an expression: the aborting of the
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76 * expression evaluation is done without producing any error messages, but all
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77 * error messages on parsing errors during the expression evaluation are given
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78 * (even if a try conditional is active).
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79 */
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80 static int cause_abort = FALSE;
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81
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82 /*
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83 * Return TRUE when immdediately aborting on error, or when an interrupt
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84 * occurred or an exception was thrown but not caught. Use for ":{range}call"
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85 * to check whether an aborted function that does not handle a range itself
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86 * should be called again for the next line in the range. Also used for
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87 * cancelling expression evaluation after a function call caused an immediate
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88 * abort. Note that the first emsg() call temporarily resets "force_abort"
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89 * until the throw point for error messages has been reached. That is, during
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90 * cancellation of an expression evaluation after an aborting function call or
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91 * due to a parsing error, aborting() always returns the same value.
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92 */
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93 int
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94 aborting()
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95 {
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96 return (did_emsg && force_abort) || got_int || did_throw;
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97 }
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98
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99 /*
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100 * The value of "force_abort" is temporarily reset by the first emsg() call
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101 * during an expression evaluation, and "cause_abort" is used instead. It might
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102 * be necessary to restore "force_abort" even before the throw point for the
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103 * error message has been reached. update_force_abort() should be called then.
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104 */
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105 void
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106 update_force_abort()
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107 {
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108 if (cause_abort)
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109 force_abort = TRUE;
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110 }
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111
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112 /*
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113 * Return TRUE if a command with a subcommand resulting in "retcode" should
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114 * abort the script processing. Can be used to suppress an autocommand after
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115 * execution of a failing subcommand as long as the error message has not been
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116 * displayed and actually caused the abortion.
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117 */
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118 int
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119 should_abort(retcode)
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120 int retcode;
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121 {
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122 return ((retcode == FAIL && trylevel != 0 && !emsg_silent) || aborting());
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123 }
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124
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125 /*
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126 * Return TRUE if a function with the "abort" flag should not be considered
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127 * ended on an error. This means that parsing commands is continued in order
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128 * to find finally clauses to be executed, and that some errors in skipped
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129 * commands are still reported.
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130 */
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131 int
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132 aborted_in_try()
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133 {
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134 /* This function is only called after an error. In this case, "force_abort"
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135 * determines whether searching for finally clauses is necessary. */
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136 return force_abort;
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137 }
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138
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139 /*
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140 * cause_errthrow(): Cause a throw of an error exception if appropriate.
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141 * Return TRUE if the error message should not be displayed by emsg().
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142 * Sets "ignore", if the emsg() call should be ignored completely.
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143 *
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144 * When several messages appear in the same command, the first is usually the
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145 * most specific one and used as the exception value. The "severe" flag can be
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146 * set to TRUE, if a later but severer message should be used instead.
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147 */
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148 int
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149 cause_errthrow(mesg, severe, ignore)
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150 char_u *mesg;
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151 int severe;
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152 int *ignore;
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153 {
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154 struct msglist *elem;
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155 struct msglist **plist;
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156
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157 /*
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158 * Do nothing when displaying the interrupt message or reporting an uncaught
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159 * exception (which has already been discarded then) at the top level. Also
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160 * when no exception can be thrown. The message will be displayed by
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161 * emsg().
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162 */
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163 if (suppress_errthrow)
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164 return FALSE;
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165
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166 /*
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167 * If emsg() has not been called previously, temporarily reset "force_abort"
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168 * until the throw point for error messages has been reached. This ensures
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169 * that aborting() returns the same value for all errors that appear in the
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170 * same command. This means particularly that for parsing errors during
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171 * expression evaluation emsg() will be called multiply, even when the
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172 * expression is evaluated from a finally clause that was activated due to
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173 * an aborting error, interrupt, or exception.
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174 */
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175 if (!did_emsg)
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176 {
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177 cause_abort = force_abort;
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178 force_abort = FALSE;
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179 }
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180
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181 /*
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182 * If no try conditional is active and no exception is being thrown and
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183 * there has not been an error in a try conditional or a throw so far, do
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184 * nothing (for compatibility of non-EH scripts). The message will then be
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185 * displayed by emsg(). When ":silent!" was used and we are not currently
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186 * throwing an exception, do nothing. The message text will then be stored
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187 * to v:errmsg by emsg() without displaying it.
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188 */
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189 if (((trylevel == 0 && !cause_abort) || emsg_silent) && !did_throw)
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190 return FALSE;
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191
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vimboss
parents:
diff changeset
192 /*
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vimboss
parents:
diff changeset
193 * Ignore an interrupt message when inside a try conditional or when an
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
194 * exception is being thrown or when an error in a try conditional or throw
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
195 * has been detected previously. This is important in order that an
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
196 * interrupt exception is catchable by the innermost try conditional and
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
197 * not replaced by an interrupt message error exception.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
198 */
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vimboss
parents:
diff changeset
199 if (mesg == (char_u *)_(e_interr))
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vimboss
parents:
diff changeset
200 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
201 *ignore = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
202 return TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
203 }
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vimboss
parents:
diff changeset
204
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vimboss
parents:
diff changeset
205 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
206 * Ensure that all commands in nested function calls and sourced files
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
207 * are aborted immediately.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
208 */
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vimboss
parents:
diff changeset
209 cause_abort = TRUE;
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vimboss
parents:
diff changeset
210
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vimboss
parents:
diff changeset
211 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
212 * When an exception is being thrown, some commands (like conditionals) are
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
213 * not skipped. Errors in those commands may affect what of the subsequent
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
214 * commands are regarded part of catch and finally clauses. Catching the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
215 * exception would then cause execution of commands not intended by the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
216 * user, who wouldn't even get aware of the problem. Therefor, discard the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
217 * exception currently being thrown to prevent it from being caught. Just
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
218 * execute finally clauses and terminate.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
219 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
220 if (did_throw)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
221 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
222 /* When discarding an interrupt exception, reset got_int to prevent the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
223 * same interrupt being converted to an exception again and discarding
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
224 * the error exception we are about to throw here. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
225 if (current_exception->type == ET_INTERRUPT)
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vimboss
parents:
diff changeset
226 got_int = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
227 discard_current_exception();
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vimboss
parents:
diff changeset
228 }
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vimboss
parents:
diff changeset
229
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vimboss
parents:
diff changeset
230 #ifdef THROW_TEST
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vimboss
parents:
diff changeset
231 if (!THROW_ON_ERROR)
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vimboss
parents:
diff changeset
232 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
233 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
234 * Print error message immediately without searching for a matching
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
235 * catch clause; just finally clauses are executed before the script
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
236 * is terminated.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
237 */
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vimboss
parents:
diff changeset
238 return FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
239 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
240 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
241 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
242 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
243 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
244 * Prepare the throw of an error exception, so that everything will
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
245 * be aborted (except for executing finally clauses), until the error
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
246 * exception is caught; if still uncaught at the top level, the error
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
247 * message will be displayed and the script processing terminated
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
248 * then. - This function has no access to the conditional stack.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
249 * Thus, the actual throw is made after the failing command has
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
250 * returned. - Throw only the first of several errors in a row, except
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
251 * a severe error is following.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
252 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
253 if (msg_list != NULL)
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vimboss
parents:
diff changeset
254 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
255 plist = msg_list;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
256 while (*plist != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
257 plist = &(*plist)->next;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
258
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vimboss
parents:
diff changeset
259 elem = (struct msglist *)alloc((unsigned)sizeof(struct msglist));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
260 if (elem == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
261 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
262 suppress_errthrow = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
263 EMSG(_(e_outofmem));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
264 }
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vimboss
parents:
diff changeset
265 else
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vimboss
parents:
diff changeset
266 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
267 elem->msg = vim_strsave(mesg);
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vimboss
parents:
diff changeset
268 if (elem->msg == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
269 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
270 vim_free(elem);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
271 suppress_errthrow = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
272 EMSG(_(e_outofmem));
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vimboss
parents:
diff changeset
273 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
274 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
275 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
276 elem->next = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
277 elem->throw_msg = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
278 *plist = elem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
279 if (plist == msg_list || severe)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
280 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
281 char_u *tmsg;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
282
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
283 /* Skip the extra "Vim " prefix for message "E458". */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
284 tmsg = elem->msg;
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vimboss
parents:
diff changeset
285 if (STRNCMP(tmsg, "Vim E", 5) == 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
286 && VIM_ISDIGIT(tmsg[5])
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
287 && VIM_ISDIGIT(tmsg[6])
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
288 && VIM_ISDIGIT(tmsg[7])
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
289 && tmsg[8] == ':'
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
290 && tmsg[9] == ' ')
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
291 (*msg_list)->throw_msg = &tmsg[4];
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
292 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
293 (*msg_list)->throw_msg = tmsg;
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vimboss
parents:
diff changeset
294 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
295 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
296 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
297 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
298 return TRUE;
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vimboss
parents:
diff changeset
299 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
300 }
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 * Free a "msg_list" and the messages it contains.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
304 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
305 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
306 free_msglist(l)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
307 struct msglist *l;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
308 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
309 struct msglist *messages, *next;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
310
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
311 messages = l;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
312 while (messages != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
313 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
314 next = messages->next;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
315 vim_free(messages->msg);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
316 vim_free(messages);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
317 messages = next;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
318 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
319 }
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 * Throw the message specified in the call to cause_errthrow() above as an
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
323 * error exception. If cstack is NULL, postpone the throw until do_cmdline()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
324 * has returned (see do_one_cmd()).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
325 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
326 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
327 do_errthrow(cstack, cmdname)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
328 struct condstack *cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
329 char_u *cmdname;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
330 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
331 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
332 * Ensure that all commands in nested function calls and sourced files
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
333 * are aborted immediately.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
334 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
335 if (cause_abort)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
336 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
337 cause_abort = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
338 force_abort = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
339 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
340
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
341 /* If no exception is to be thrown or the conversion should be done after
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
342 * returning to a previous invocation of do_one_cmd(), do nothing. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
343 if (*msg_list == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
344 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
345
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
346 if (throw_exception(*msg_list, ET_ERROR, cmdname) == FAIL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
347 free_msglist(*msg_list);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
348 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
349 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
350 if (cstack != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
351 do_throw(cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
352 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
353 need_rethrow = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
354 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
355 *msg_list = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
356 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
357
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
358 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
359 * do_intthrow(): Replace the current exception by an interrupt or interrupt
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
360 * exception if appropriate. Return TRUE if the current exception is discarded,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
361 * FALSE otherwise.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
362 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
363 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
364 do_intthrow(cstack)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
365 struct condstack *cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
366 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
367 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
368 * If no interrupt occurred or no try conditional is active and no exception
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
369 * is being thrown, do nothing (for compatibility of non-EH scripts).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
370 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
371 if (!got_int || (trylevel == 0 && !did_throw))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
372 return FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
373
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
374 #ifdef THROW_TEST /* avoid warning for condition always true */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
375 if (!THROW_ON_INTERRUPT)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
376 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
377 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
378 * The interrupt aborts everything except for executing finally clauses.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
379 * Discard any user or error or interrupt exception currently being
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
380 * thrown.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
381 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
382 if (did_throw)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
383 discard_current_exception();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
384 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
385 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
386 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
387 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
388 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
389 * Throw an interrupt exception, so that everything will be aborted
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
390 * (except for executing finally clauses), until the interrupt exception
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
391 * is caught; if still uncaught at the top level, the script processing
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
392 * will be terminated then. - If an interrupt exception is already
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
393 * being thrown, do nothing.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
394 *
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
395 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
396 if (did_throw)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
397 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
398 if (current_exception->type == ET_INTERRUPT)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
399 return FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
400
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
401 /* An interrupt exception replaces any user or error exception. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
402 discard_current_exception();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
403 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
404 if (throw_exception("Vim:Interrupt", ET_INTERRUPT, NULL) != FAIL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
405 do_throw(cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
406 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
407
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
408 return TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
409 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
410
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
411
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
412 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
413 * Throw a new exception. Return FAIL when out of memory or it was tried to
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
414 * throw an illegal user exception. "value" is the exception string for a user
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
415 * or interrupt exception, or points to a message list in case of an error
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
416 * exception.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
417 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
418 static int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
419 throw_exception(value, type, cmdname)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
420 void *value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
421 int type;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
422 char_u *cmdname;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
423 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
424 except_T *excp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
425 char_u *p, *mesg, *val;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
426 int cmdlen;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
427
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
428 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
429 * Disallow faking Interrupt or error exceptions as user exceptions. They
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
430 * would be treated differently from real interrupt or error exceptions when
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
431 * no active try block is found, see do_cmdline().
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
432 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
433 if (type == ET_USER)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
434 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
435 if (STRNCMP((char_u *)value, "Vim", 3) == 0 &&
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
436 (((char_u *)value)[3] == NUL || ((char_u *)value)[3] == ':' ||
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
437 ((char_u *)value)[3] == '('))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
438 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
439 EMSG(_("E608: Cannot :throw exceptions with 'Vim' prefix"));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
440 goto fail;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
441 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
442 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
443
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
444 excp = (except_T *)alloc((unsigned)sizeof(except_T));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
445 if (excp == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
446 goto nomem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
447
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
448 if (type == ET_ERROR)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
449 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
450 /* Store the original message and prefix the exception value with
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
451 * "Vim:" or, if a command name is given, "Vim(cmdname):". */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
452 excp->messages = (struct msglist *)value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
453 mesg = excp->messages->throw_msg;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
454 if (cmdname != NULL && *cmdname != NUL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
455 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
456 cmdlen = STRLEN(cmdname);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
457 excp->value = vim_strnsave((char_u *)"Vim(",
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
458 4 + cmdlen + 2 + (int)STRLEN(mesg));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
459 if (excp->value == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
460 goto nomem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
461 STRCPY(&excp->value[4], cmdname);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
462 STRCPY(&excp->value[4 + cmdlen], "):");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
463 val = excp->value + 4 + cmdlen + 2;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
464 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
465 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
466 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
467 excp->value = vim_strnsave((char_u *)"Vim:", 4 + (int)STRLEN(mesg));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
468 if (excp->value == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
469 goto nomem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
470 val = excp->value + 4;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
471 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
472
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
473 /* msg_add_fname may have been used to prefix the message with a file
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
474 * name in quotes. In the exception value, put the file name in
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
475 * parentheses and move it to the end. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
476 for (p = mesg; ; p++)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
477 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
478 if (*p == NUL
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
479 || (*p == 'E'
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
480 && VIM_ISDIGIT(p[1])
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
481 && (p[2] == ':'
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
482 || (VIM_ISDIGIT(p[2])
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
483 && (p[3] == ':'
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
484 || (VIM_ISDIGIT(p[3])
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
485 && p[4] == ':'))))))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
486 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
487 if (*p == NUL || p == mesg) /* 'E123' missing or at beginning */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
488 STRCAT(val, mesg);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
489 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
490 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
491 /* '"filename" E123: message text' */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
492 if (mesg[0] != '"' || p-2 < &mesg[1] ||
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
493 p[-2] != '"' || p[-1] != ' ')
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
494 /* "E123:" is part of the file name. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
495 continue;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
496
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
497 STRCAT(val, p);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
498 p[-2] = NUL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
499 sprintf((char *)(val + STRLEN(p)), " (%s)", &mesg[1]);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
500 p[-2] = '"';
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
501 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
502 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
503 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
504 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
505 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
506 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
507 excp->value = value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
508
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
509 excp->type = type;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
510 excp->throw_name = vim_strsave(sourcing_name == NULL
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
511 ? (char_u *)"" : sourcing_name);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
512 if (excp->throw_name == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
513 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
514 if (type == ET_ERROR)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
515 vim_free(excp->value);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
516 goto nomem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
517 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
518 excp->throw_lnum = sourcing_lnum;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
519
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
520 if (p_verbose >= 13 || debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
521 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
522 int save_msg_silent = msg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
523
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
524 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
525 msg_silent = FALSE; /* display messages */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
526 ++no_wait_return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
527 msg_scroll = TRUE; /* always scroll up, don't overwrite */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
528 msg_str((char_u *)_("Exception thrown: %s"), excp->value);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
529 msg_puts((char_u *)"\n"); /* don't overwrite this either */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
530 cmdline_row = msg_row;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
531 --no_wait_return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
532 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
533 msg_silent = save_msg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
534 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
535
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
536 current_exception = excp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
537 return OK;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
538
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
539 nomem:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
540 vim_free(excp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
541 suppress_errthrow = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
542 EMSG(_(e_outofmem));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
543 fail:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
544 current_exception = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
545 return FAIL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
546 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
547
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
548 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
549 * Discard an exception. "was_finished" is set when the exception has been
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
550 * caught and the catch clause has been ended normally.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
551 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
552 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
553 discard_exception(excp, was_finished)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
554 except_T *excp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
555 int was_finished;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
556 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
557 char_u *saved_IObuff;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
558
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
559 if (excp == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
560 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
561 EMSG(_(e_internal));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
562 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
563 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
564
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
565 if (p_verbose >= 13 || debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
566 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
567 int save_msg_silent = msg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
568
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
569 saved_IObuff = vim_strsave(IObuff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
570 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
571 msg_silent = FALSE; /* display messages */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
572 ++no_wait_return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
573 msg_scroll = TRUE; /* always scroll up, don't overwrite */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
574 msg_str(was_finished
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
575 ? (char_u *)_("Exception finished: %s")
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
576 : (char_u *)_("Exception discarded: %s"),
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
577 excp->value);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
578 msg_puts((char_u *)"\n"); /* don't overwrite this either */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
579 cmdline_row = msg_row;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
580 --no_wait_return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
581 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
582 msg_silent = save_msg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
583 STRCPY(IObuff, saved_IObuff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
584 vim_free(saved_IObuff);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
585 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
586 if (excp->type != ET_INTERRUPT)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
587 vim_free(excp->value);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
588 if (excp->type == ET_ERROR)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
589 free_msglist(excp->messages);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
590 vim_free(excp->throw_name);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
591 vim_free(excp);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
592 }
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 * Discard the exception currently being thrown.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
596 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
597 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
598 discard_current_exception()
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
599 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
600 discard_exception(current_exception, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
601 current_exception = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
602 did_throw = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
603 need_rethrow = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
604 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
605
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
606 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
607 * Put an exception on the caught stack.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
608 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
609 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
610 catch_exception(excp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
611 except_T *excp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
612 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
613 excp->caught = caught_stack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
614 caught_stack = excp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
615 set_vim_var_string(VV_EXCEPTION, excp->value, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
616 if (*excp->throw_name != NUL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
617 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
618 if (excp->throw_lnum != 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
619 sprintf((char *)IObuff, _("%s, line %ld"), excp->throw_name,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
620 (long)excp->throw_lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
621 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
622 STRCPY(IObuff, excp->throw_name);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
623 set_vim_var_string(VV_THROWPOINT, IObuff, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
624 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
625 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
626 /* throw_name not set on an exception from a command that was typed. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
627 set_vim_var_string(VV_THROWPOINT, NULL, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
628
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
629 if (p_verbose >= 13 || debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
630 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
631 int save_msg_silent = msg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
632
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
633 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
634 msg_silent = FALSE; /* display messages */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
635 ++no_wait_return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
636 msg_scroll = TRUE; /* always scroll up, don't overwrite */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
637 msg_str((char_u *)_("Exception caught: %s"), excp->value);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
638 msg_puts((char_u *)"\n"); /* don't overwrite this either */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
639 cmdline_row = msg_row;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
640 --no_wait_return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
641 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
642 msg_silent = save_msg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
643 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
644 }
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 * Remove an exception from the caught stack.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
648 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
649 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
650 finish_exception(excp)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
651 except_T *excp;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
652 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
653 if (excp != caught_stack)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
654 EMSG(_(e_internal));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
655 caught_stack = caught_stack->caught;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
656 if (caught_stack != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
657 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
658 set_vim_var_string(VV_EXCEPTION, caught_stack->value, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
659 if (*caught_stack->throw_name != NUL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
660 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
661 if (caught_stack->throw_lnum != 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
662 sprintf((char *)IObuff,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
663 _("%s, line %ld"), caught_stack->throw_name,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
664 (long)caught_stack->throw_lnum);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
665 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
666 STRCPY(IObuff, caught_stack->throw_name);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
667 set_vim_var_string(VV_THROWPOINT, IObuff, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
668 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
669 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
670 /* throw_name not set on an exception from a command that was
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
671 * typed. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
672 set_vim_var_string(VV_THROWPOINT, NULL, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
673 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
674 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
675 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
676 set_vim_var_string(VV_EXCEPTION, NULL, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
677 set_vim_var_string(VV_THROWPOINT, NULL, -1);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
678 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
679
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
680 /* Discard the exception, but use the finish message for 'verbose'. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
681 discard_exception(excp, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
682 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
683
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
684 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
685 * Flags specifying the message displayed by report_pending.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
686 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
687 #define RP_MAKE 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
688 #define RP_RESUME 1
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
689 #define RP_DISCARD 2
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
690
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
691 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
692 * Report information about something pending in a finally clause if required by
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
693 * the 'verbose' option or when debugging. "action" tells whether something is
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
694 * made pending or something pending is resumed or discarded. "pending" tells
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
695 * what is pending. "value" specifies the return value for a pending ":return"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
696 * or the exception value for a pending exception.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
697 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
698 static void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
699 report_pending(action, pending, value)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
700 int action;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
701 int pending;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
702 void *value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
703 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
704 char_u *mesg;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
705 char *s;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
706 int save_msg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
707
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
708
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
709 switch (action)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
710 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
711 case RP_MAKE:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
712 mesg = (char_u *)_("%s made pending");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
713 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
714 case RP_RESUME:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
715 mesg = (char_u *)_("%s resumed");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
716 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
717 /* case RP_DISCARD: */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
718 default:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
719 mesg = (char_u *)_("%s discarded");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
720 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
721 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
722
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
723 switch (pending)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
724 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
725 case CSTP_NONE:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
726 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
727
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
728 case CSTP_CONTINUE:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
729 s = ":continue";
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
730 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
731 case CSTP_BREAK:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
732 s = ":break";
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
733 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
734 case CSTP_FINISH:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
735 s = ":finish";
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
736 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
737 case CSTP_RETURN:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
738 /* ":return" command producing value, allocated */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
739 s = (char *)get_return_cmd(value);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
740 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
741
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
742 default:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
743 if (pending & CSTP_THROW)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
744 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
745 sprintf((char *)IObuff, (char *)mesg, _("Exception"));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
746 mesg = vim_strnsave(IObuff, (int)STRLEN(IObuff) + 4);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
747 STRCAT(mesg, ": %s");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
748 s = (char *)((except_T *)value)->value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
749 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
750 else if ((pending & CSTP_ERROR) && (pending & CSTP_INTERRUPT))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
751 s = _("Error and interrupt");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
752 else if (pending & CSTP_ERROR)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
753 s = _("Error");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
754 else /* if (pending & CSTP_INTERRUPT) */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
755 s = _("Interrupt");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
756 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
757
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
758 save_msg_silent = msg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
759 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
760 msg_silent = FALSE; /* display messages */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
761 ++no_wait_return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
762 msg_scroll = TRUE; /* always scroll up, don't overwrite */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
763 msg_str(mesg, (char_u *)s);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
764 msg_puts((char_u *)"\n"); /* don't overwrite this either */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
765 cmdline_row = msg_row;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
766 --no_wait_return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
767 if (debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
768 msg_silent = 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 if (pending == CSTP_RETURN)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
771 vim_free(s);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
772 else if (pending & CSTP_THROW)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
773 vim_free(mesg);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
774 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
775
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
776 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
777 * If something is made pending in a finally clause, report it if required by
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
778 * the 'verbose' option or when debugging.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
779 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
780 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
781 report_make_pending(pending, value)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
782 int pending;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
783 void *value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
784 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
785 if (p_verbose >= 14 || debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
786 report_pending(RP_MAKE, pending, value);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
787 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
788
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
789 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
790 * If something pending in a finally clause is resumed at the ":endtry", report
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
791 * it if required by the 'verbose' option or when debugging.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
792 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
793 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
794 report_resume_pending(pending, value)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
795 int pending;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
796 void *value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
797 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
798 if (p_verbose >= 14 || debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
799 report_pending(RP_RESUME, pending, value);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
800 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
801
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
802 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
803 * If something pending in a finally clause is discarded, report it if required
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
804 * by the 'verbose' option or when debugging.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
805 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
806 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
807 report_discard_pending(pending, value)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
808 int pending;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
809 void *value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
810 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
811 if (p_verbose >= 14 || debug_break_level > 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
812 report_pending(RP_DISCARD, pending, value);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
813 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
814
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
815
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
816 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
817 * ":if".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
818 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
819 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
820 ex_if(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
821 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
822 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
823 int error;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
824 int skip;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
825 int result;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
826 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
827
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
828 if (cstack->cs_idx == CSTACK_LEN - 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
829 eap->errmsg = (char_u *)N_("E579: :if nesting too deep");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
830 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
831 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
832 ++cstack->cs_idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
833 cstack->cs_flags[cstack->cs_idx] = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
834
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
835 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
836 * Don't do something after an error, interrupt, or throw, or when there
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
837 * is a surrounding conditional and it was not active.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
838 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
839 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
840 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
841
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
842 result = eval_to_bool(eap->arg, &error, &eap->nextcmd, skip);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
843
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
844 if (!skip && !error)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
845 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
846 if (result)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
847 cstack->cs_flags[cstack->cs_idx] = CSF_ACTIVE | CSF_TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
848 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
849 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
850 /* set TRUE, so this conditional will never get active */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
851 cstack->cs_flags[cstack->cs_idx] = CSF_TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
852 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
853 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
854
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
855 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
856 * ":endif".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
857 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
858 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
859 ex_endif(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
860 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
861 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
862 did_endif = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
863 if (eap->cstack->cs_idx < 0
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
864 || (eap->cstack->cs_flags[eap->cstack->cs_idx]
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
865 & (CSF_WHILE | CSF_FOR | CSF_TRY)))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
866 eap->errmsg = (char_u *)N_("E580: :endif without :if");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
867 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
868 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
869 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
870 * When debugging or a breakpoint was encountered, display the debug
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
871 * prompt (if not already done). This shows the user that an ":endif"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
872 * is executed when the ":if" or a previous ":elseif" was not TRUE.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
873 * Handle a ">quit" debug command as if an interrupt had occurred before
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
874 * the ":endif". That is, throw an interrupt exception if appropriate.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
875 * Doing this here prevents an exception for a parsing error being
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
876 * discarded by throwing the interrupt exception later on.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
877 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
878 if (!(eap->cstack->cs_flags[eap->cstack->cs_idx] & CSF_TRUE) &&
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
879 dbg_check_skipped(eap))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
880 (void)do_intthrow(eap->cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
881
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
882 --eap->cstack->cs_idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
883 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
884 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
885
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
886 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
887 * ":else" and ":elseif".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
888 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
889 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
890 ex_else(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
891 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
892 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
893 int error;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
894 int skip;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
895 int result;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
896 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
897
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
898 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
899 * Don't do something after an error, interrupt, or throw, or when there is
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
900 * a surrounding conditional and it was not active.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
901 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
902 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
903 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
904
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
905 if (cstack->cs_idx < 0
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
906 || (cstack->cs_flags[cstack->cs_idx]
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
907 & (CSF_WHILE | CSF_FOR | CSF_TRY)))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
908 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
909 if (eap->cmdidx == CMD_else)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
910 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
911 eap->errmsg = (char_u *)N_("E581: :else without :if");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
912 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
913 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
914 eap->errmsg = (char_u *)N_("E582: :elseif without :if");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
915 skip = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
916 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
917 else if (cstack->cs_flags[cstack->cs_idx] & CSF_ELSE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
918 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
919 if (eap->cmdidx == CMD_else)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
920 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
921 eap->errmsg = (char_u *)N_("E583: multiple :else");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
922 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
923 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
924 eap->errmsg = (char_u *)N_("E584: :elseif after :else");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
925 skip = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
926 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
927
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
928 /* if skipping or the ":if" was TRUE, reset ACTIVE, otherwise set it */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
929 if (skip || cstack->cs_flags[cstack->cs_idx] & CSF_TRUE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
930 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
931 if (eap->errmsg == NULL)
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 skip = TRUE; /* don't evaluate an ":elseif" */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
934 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
935 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
936 cstack->cs_flags[cstack->cs_idx] = CSF_ACTIVE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
937
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
938 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
939 * When debugging or a breakpoint was encountered, display the debug prompt
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
940 * (if not already done). This shows the user that an ":else" or ":elseif"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
941 * is executed when the ":if" or previous ":elseif" was not TRUE. Handle
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
942 * a ">quit" debug command as if an interrupt had occurred before the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
943 * ":else" or ":elseif". That is, set "skip" and throw an interrupt
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
944 * exception if appropriate. Doing this here prevents that an exception
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
945 * for a parsing errors is discarded when throwing the interrupt exception
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
946 * later on.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
947 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
948 if (!skip && dbg_check_skipped(eap) && got_int)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
949 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
950 (void)do_intthrow(cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
951 skip = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
952 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
953
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
954 if (eap->cmdidx == CMD_elseif)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
955 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
956 result = eval_to_bool(eap->arg, &error, &eap->nextcmd, skip);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
957 /* When throwing error exceptions, we want to throw always the first
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
958 * of several errors in a row. This is what actually happens when
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
959 * a conditional error was detected above and there is another failure
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
960 * when parsing the expression. Since the skip flag is set in this
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
961 * case, the parsing error will be ignored by emsg(). */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
962
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
963 if (!skip && !error)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
964 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
965 if (result)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
966 cstack->cs_flags[cstack->cs_idx] = CSF_ACTIVE | CSF_TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
967 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
968 cstack->cs_flags[cstack->cs_idx] = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
969 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
970 else if (eap->errmsg == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
971 /* set TRUE, so this conditional will never get active */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
972 cstack->cs_flags[cstack->cs_idx] = CSF_TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
973 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
974 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
975 cstack->cs_flags[cstack->cs_idx] |= CSF_ELSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
976 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
977
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
978 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
979 * Handle ":while" and ":for".
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
980 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
981 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
982 ex_while(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
983 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
984 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
985 int error;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
986 int skip;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
987 int result;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
988 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
989
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
990 if (cstack->cs_idx == CSTACK_LEN - 1)
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
991 eap->errmsg = (char_u *)N_("E585: :while/:for nesting too deep");
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
992 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
993 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
994 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
995 * The loop flag is set when we have jumped back from the matching
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
996 * ":endwhile" or ":endfor". When not set, need to initialise this
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
997 * cstack entry.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
998 */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
999 if ((cstack->cs_lflags & CSL_HAD_LOOP) == 0)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1000 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1001 ++cstack->cs_idx;
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1002 ++cstack->cs_looplevel;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1003 cstack->cs_line[cstack->cs_idx] = -1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1004 }
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1005 cstack->cs_flags[cstack->cs_idx] =
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1006 eap->cmdidx == CMD_while ? CSF_WHILE : CSF_FOR;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1007
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1008 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1009 * Don't do something after an error, interrupt, or throw, or when
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1010 * there is a surrounding conditional and it was not active.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1011 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1012 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1013 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE));
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1014 if (eap->cmdidx == CMD_while)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1015 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1016 /*
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1017 * ":while bool-expr"
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1018 */
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1019 result = eval_to_bool(eap->arg, &error, &eap->nextcmd, skip);
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1020 }
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1021 else
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1022 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1023 void *fi;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1024
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1025 /*
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1026 * ":for var in list-expr"
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1027 */
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1028 if ((cstack->cs_lflags & CSL_HAD_LOOP) != 0)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1029 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1030 /* Jumping here from a ":continue" or ":endfor": use the
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1031 * previously evaluated list. */
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1032 fi = cstack->cs_forinfo[cstack->cs_idx];
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1033 error = FALSE;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1034 }
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1035 else
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1036 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1037 /* Evaluate the argument and get the info in a structure. */
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1038 fi = eval_for_line(eap->arg, &error, &eap->nextcmd, skip);
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1039 cstack->cs_forinfo[cstack->cs_idx] = fi;
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1040 }
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1041
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1042 /* use the element at the start of the list and advance */
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1043 if (!error && fi != NULL && !skip)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1044 result = next_for_item(fi, eap->arg);
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1045 else
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1046 result = FALSE;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1047
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1048 if (!result)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1049 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1050 free_for_info(fi);
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1051 cstack->cs_forinfo[cstack->cs_idx] = NULL;
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1052 }
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1053 }
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1054
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1055 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1056 * If this cstack entry was just initialised and is active, set the
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1057 * loop flag, so do_cmdline() will set the line number in cs_line[].
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1058 * If executing the command a second time, clear the loop flag.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1059 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1060 if (!skip && !error && result)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1061 {
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1062 cstack->cs_flags[cstack->cs_idx] |= (CSF_ACTIVE | CSF_TRUE);
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1063 cstack->cs_lflags ^= CSL_HAD_LOOP;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1064 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1065 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1066 {
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1067 cstack->cs_lflags &= ~CSL_HAD_LOOP;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1068 /* If the ":while" evaluates to FALSE or ":for" is past the end of
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1069 * the list, show the debug prompt at the ":endwhile"/":endfor" as
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1070 * if there was a ":break" in a ":while"/":for" evaluating to
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1071 * TRUE. */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1072 if (!skip && !error)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1073 cstack->cs_flags[cstack->cs_idx] |= CSF_TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1074 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1075 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1076 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1077
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1078 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1079 * ":continue"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1080 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1081 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1082 ex_continue(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1083 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1084 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1085 int idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1086 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1087
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1088 if (cstack->cs_looplevel <= 0 || cstack->cs_idx < 0)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1089 eap->errmsg = (char_u *)N_("E586: :continue without :while or :for");
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1090 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1091 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1092 /* Try to find the matching ":while". This might stop at a try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1093 * conditional not in its finally clause (which is then to be executed
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1094 * next). Therefor, inactivate all conditionals except the ":while"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1095 * itself (if reached). */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1096 idx = cleanup_conditionals(cstack, CSF_WHILE | CSF_FOR, FALSE);
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1097 if ((cstack->cs_flags[idx] & (CSF_WHILE | CSF_FOR)))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1098 {
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1099 rewind_conditionals(cstack, idx, CSF_TRY, &cstack->cs_trylevel);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1100
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1101 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1102 * Set CSL_HAD_CONT, so do_cmdline() will jump back to the
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1103 * matching ":while".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1104 */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1105 cstack->cs_lflags |= CSL_HAD_CONT; /* let do_cmdline() handle it */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1106 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1107 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1108 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1109 /* If a try conditional not in its finally clause is reached first,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1110 * make the ":continue" pending for execution at the ":endtry". */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1111 cstack->cs_pending[idx] = CSTP_CONTINUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1112 report_make_pending(CSTP_CONTINUE, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1113 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1114 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1115 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1116
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1117 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1118 * ":break"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1119 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1120 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1121 ex_break(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1122 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1123 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1124 int idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1125 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1126
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1127 if (cstack->cs_looplevel <= 0 || cstack->cs_idx < 0)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1128 eap->errmsg = (char_u *)N_("E587: :break without :while or :for");
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1129 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1130 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1131 /* Inactivate conditionals until the matching ":while" or a try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1132 * conditional not in its finally clause (which is then to be
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1133 * executed next) is found. In the latter case, make the ":break"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1134 * pending for execution at the ":endtry". */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1135 idx = cleanup_conditionals(cstack, CSF_WHILE | CSF_FOR, TRUE);
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1136 if (!(cstack->cs_flags[idx] & (CSF_WHILE | CSF_FOR)))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1137 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1138 cstack->cs_pending[idx] = CSTP_BREAK;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1139 report_make_pending(CSTP_BREAK, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1140 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1141 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1142 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1143
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1144 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1145 * ":endwhile" and ":endfor"
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1146 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1147 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1148 ex_endwhile(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1149 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1150 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1151 struct condstack *cstack = eap->cstack;
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1152 int idx;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1153 char_u *err;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1154 int csf;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1155 int fl;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1156
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1157 if (eap->cmdidx == CMD_endwhile)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1158 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1159 err = e_while;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1160 csf = CSF_WHILE;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1161 }
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1162 else
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1163 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1164 err = e_for;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1165 csf = CSF_FOR;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1166 }
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1167
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1168 if (cstack->cs_looplevel <= 0 || cstack->cs_idx < 0)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1169 eap->errmsg = err;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1170 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1171 {
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1172 fl = cstack->cs_flags[cstack->cs_idx];
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1173 if (!(fl & csf))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1174 {
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1175 if (fl & CSF_WHILE)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1176 eap->errmsg = (char_u *)_("E999: Using :endfor with :while");
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1177 else if (fl & CSF_FOR)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1178 eap->errmsg = (char_u *)_("E999: Using :endwhile with :for");
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1179 else if (!(fl & CSF_TRY))
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1180 eap->errmsg = e_endif;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1181 else if (fl & CSF_FINALLY)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1182 eap->errmsg = e_endtry;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1183 /* Try to find the matching ":while" and report what's missing. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1184 for (idx = cstack->cs_idx; idx > 0; --idx)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1185 {
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1186 fl = cstack->cs_flags[idx];
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1187 if ((fl & CSF_TRY) && !(fl & CSF_FINALLY))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1188 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1189 /* Give up at a try conditional not in its finally clause.
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1190 * Ignore the ":endwhile"/":endfor". */
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1191 eap->errmsg = err;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1192 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1193 }
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1194 if (fl & csf)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1195 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1196 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1197 /* Cleanup and rewind all contained (and unclosed) conditionals. */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1198 (void)cleanup_conditionals(cstack, CSF_WHILE | CSF_FOR, FALSE);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1199 rewind_conditionals(cstack, idx, CSF_TRY, &cstack->cs_trylevel);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1200 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1201
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1202 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1203 * When debugging or a breakpoint was encountered, display the debug
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1204 * prompt (if not already done). This shows the user that an
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1205 * ":endwhile"/":endfor" is executed when the ":while" was not TRUE or
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1206 * after a ":break". Handle a ">quit" debug command as if an
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1207 * interrupt had occurred before the ":endwhile"/":endfor". That is,
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1208 * throw an interrupt exception if appropriate. Doing this here
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1209 * prevents that an exception for a parsing error is discarded when
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1210 * throwing the interrupt exception later on.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1211 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1212 else if (cstack->cs_flags[cstack->cs_idx] & CSF_TRUE
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1213 && !(cstack->cs_flags[cstack->cs_idx] & CSF_ACTIVE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1214 && dbg_check_skipped(eap))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1215 (void)do_intthrow(cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1216
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1217 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1218 * Set loop flag, so do_cmdline() will jump back to the matching
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1219 * ":while" or ":for".
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1220 */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1221 cstack->cs_lflags |= CSL_HAD_ENDLOOP;
7
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
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1226 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1227 * ":throw expr"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1228 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1229 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1230 ex_throw(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1231 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1232 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1233 char_u *arg = eap->arg;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1234 char_u *value;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1235
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1236 if (*arg != NUL && *arg != '|' && *arg != '\n')
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1237 value = eval_to_string_skip(arg, &eap->nextcmd, eap->skip);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1238 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1239 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1240 EMSG(_(e_argreq));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1241 value = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1242 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1243
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1244 /* On error or when an exception is thrown during argument evaluation, do
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1245 * not throw. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1246 if (!eap->skip && value != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1247 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1248 if (throw_exception(value, ET_USER, NULL) == FAIL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1249 vim_free(value);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1250 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1251 do_throw(eap->cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1252 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1253 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1254
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1255 /*
21
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1256 * Throw the current exception through the specified cstack. Common routine
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1257 * for ":throw" (user exception) and error and interrupt exceptions. Also
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1258 * used for rethrowing an uncaught exception.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1259 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1260 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1261 do_throw(cstack)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1262 struct condstack *cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1263 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1264 int idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1265 int inactivate_try = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1266
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1267 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1268 * Cleanup and inactivate up to the next surrounding try conditional that
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1269 * is not in its finally clause. Normally, do not inactivate the try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1270 * conditional itself, so that its ACTIVE flag can be tested below. But
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1271 * if a previous error or interrupt has not been converted to an exception,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1272 * inactivate the try conditional, too, as if the conversion had been done,
21
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1273 * 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
1274 * the next surrounding try conditional.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1275 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1276 if (did_emsg && !THROW_ON_ERROR)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1277 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1278 inactivate_try = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1279 did_emsg = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1280 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1281 if (got_int && !THROW_ON_INTERRUPT)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1282 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1283 inactivate_try = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1284 got_int = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1285 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1286 idx = cleanup_conditionals(cstack, 0, inactivate_try);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1287 if (idx >= 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1288 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1289 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1290 * If this try conditional is active and we are before its first
21
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1291 * ":catch", set THROWN so that the ":catch" commands will check
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1292 * whether the exception matches. When the exception came from any of
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1293 * the catch clauses, it will be made pending at the ":finally" (if
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1294 * present) and rethrown at the ":endtry". This will also happen if
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1295 * the try conditional is inactive. This is the case when we are
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1296 * throwing an exception due to an error or interrupt on the way from
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1297 * a preceding ":continue", ":break", ":return", ":finish", error or
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1298 * interrupt (not converted to an exception) to the finally clause or
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1299 * from a preceding throw of a user or error or interrupt exception to
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1300 * the matching catch clause or the finally clause.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1301 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1302 if (!(cstack->cs_flags[idx] & CSF_CAUGHT))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1303 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1304 if (cstack->cs_flags[idx] & CSF_ACTIVE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1305 cstack->cs_flags[idx] |= CSF_THROWN;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1306 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1307 /* THROWN may have already been set for a catchable exception
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1308 * that has been discarded. Ensure it is reset for the new
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1309 * exception. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1310 cstack->cs_flags[idx] &= ~CSF_THROWN;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1311 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1312 cstack->cs_flags[idx] &= ~CSF_ACTIVE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1313 cstack->cs_exception[idx] = current_exception;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1314 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1315 #if 0
21
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1316 /* TODO: Add optimization below. Not yet done because of interface
db5102f7e29f updated for version 7.0013
vimboss
parents: 7
diff changeset
1317 * problems to eval.c and ex_cmds2.c. (Servatius) */
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1318 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1319 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1320 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1321 * There are no catch clauses to check or finally clauses to execute.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1322 * End the current script or function. The exception will be rethrown
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1323 * in the caller.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1324 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1325 if (getline_equal(eap->getline, eap->cookie, get_func_line))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1326 current_funccal->returned = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1327 elseif (eap->get_func_line == getsourceline)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1328 ((struct source_cookie *)eap->cookie)->finished = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1329 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1330 #endif
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1331
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1332 did_throw = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1333 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1334
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1335 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1336 * ":try"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1337 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1338 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1339 ex_try(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1340 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1341 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1342 int skip;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1343 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1344
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1345 if (cstack->cs_idx == CSTACK_LEN - 1)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1346 eap->errmsg = (char_u *)N_("E601: :try nesting too deep");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1347 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1348 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1349 ++cstack->cs_idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1350 ++cstack->cs_trylevel;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1351 cstack->cs_flags[cstack->cs_idx] = CSF_TRY;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1352 cstack->cs_pending[cstack->cs_idx] = CSTP_NONE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1353
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1354 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1355 * Don't do something after an error, interrupt, or throw, or when there
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1356 * is a surrounding conditional and it was not active.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1357 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1358 skip = did_emsg || got_int || did_throw || (cstack->cs_idx > 0
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1359 && !(cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1360
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1361 if (!skip)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1362 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1363 /* Set ACTIVE and TRUE. TRUE means that the corresponding ":catch"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1364 * commands should check for a match if an exception is thrown and
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1365 * that the finally clause needs to be executed. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1366 cstack->cs_flags[cstack->cs_idx] |= CSF_ACTIVE | CSF_TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1367
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1368 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1369 * ":silent!", even when used in a try conditional, disables
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1370 * displaying of error messages and conversion of errors to
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1371 * exceptions. When the silent commands again open a try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1372 * conditional, save "emsg_silent" and reset it so that errors are
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1373 * again converted to exceptions. The value is restored when that
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1374 * try conditional is left. If it is left normally, the commands
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1375 * following the ":endtry" are again silent. If it is left by
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1376 * a ":continue", ":break", ":return", or ":finish", the commands
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1377 * executed next are again silent. If it is left due to an
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1378 * aborting error, an interrupt, or an exception, restoring
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1379 * "emsg_silent" does not matter since we are already in the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1380 * aborting state and/or the exception has already been thrown.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1381 * The effect is then just freeing the memory that was allocated
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1382 * to save the value.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1383 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1384 if (emsg_silent)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1385 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1386 eslist_T *elem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1387
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1388 elem = (eslist_T *)alloc((unsigned)sizeof(struct eslist_elem));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1389 if (elem == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1390 EMSG(_(e_outofmem));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1391 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1392 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1393 elem->saved_emsg_silent = emsg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1394 elem->next = cstack->cs_emsg_silent_list;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1395 cstack->cs_emsg_silent_list = elem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1396 cstack->cs_flags[cstack->cs_idx] |= CSF_SILENT;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1397 emsg_silent = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1398 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1399 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1400 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1401
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1402 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1403 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1404
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1405 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1406 * ":catch /{pattern}/" and ":catch"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1407 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1408 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1409 ex_catch(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1410 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1411 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1412 int idx = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1413 int give_up = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1414 int skip = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1415 int caught = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1416 char_u *end;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1417 int save_char = 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1418 char_u *save_cpo;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1419 regmatch_T regmatch;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1420 int prev_got_int;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1421 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1422 char_u *pat;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1423
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1424 if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1425 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1426 eap->errmsg = (char_u *)N_("E603: :catch without :try");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1427 give_up = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1428 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1429 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1430 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1431 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1432 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1433 /* Report what's missing if the matching ":try" is not in its
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1434 * finally clause. */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1435 eap->errmsg = get_end_emsg(cstack);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1436 skip = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1437 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1438 for (idx = cstack->cs_idx; idx > 0; --idx)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1439 if (cstack->cs_flags[idx] & CSF_TRY)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1440 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1441 if (cstack->cs_flags[idx] & CSF_FINALLY)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1442 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1443 /* Give up for a ":catch" after ":finally" and ignore it.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1444 * Just parse. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1445 eap->errmsg = (char_u *)N_("E604: :catch after :finally");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1446 give_up = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1447 }
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1448 else
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1449 rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR,
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1450 &cstack->cs_looplevel);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1451 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1452
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1453 if (ends_excmd(*eap->arg)) /* no argument, catch all errors */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1454 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1455 pat = (char_u *)".*";
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1456 end = NULL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1457 eap->nextcmd = find_nextcmd(eap->arg);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1458 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1459 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1460 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1461 pat = eap->arg + 1;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1462 end = skip_regexp(pat, *eap->arg, TRUE, NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1463 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1464
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1465 if (!give_up)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1466 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1467 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1468 * Don't do something when no exception has been thrown or when the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1469 * corresponding try block never got active (because of an inactive
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1470 * surrounding conditional or after an error or interrupt or throw).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1471 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1472 if (!did_throw || !(cstack->cs_flags[idx] & CSF_TRUE))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1473 skip = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1474
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1475 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1476 * Check for a match only if an exception is thrown but not caught by
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1477 * a previous ":catch". An exception that has replaced a discarded
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1478 * exception is not checked (THROWN is not set then).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1479 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1480 if (!skip && (cstack->cs_flags[idx] & CSF_THROWN)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1481 && !(cstack->cs_flags[idx] & CSF_CAUGHT))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1482 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1483 if (end != NULL && *end != NUL && !ends_excmd(*skipwhite(end + 1)))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1484 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1485 EMSG(_(e_trailing));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1486 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1487 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1488
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1489 /* When debugging or a breakpoint was encountered, display the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1490 * debug prompt (if not already done) before checking for a match.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1491 * This is a helpful hint for the user when the regular expression
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1492 * matching fails. Handle a ">quit" debug command as if an
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1493 * interrupt had occurred before the ":catch". That is, discard
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1494 * the original exception, replace it by an interrupt exception,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1495 * and don't catch it in this try block. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1496 if (!dbg_check_skipped(eap) || !do_intthrow(cstack))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1497 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1498 /* Terminate the pattern and avoid the 'l' flag in 'cpoptions'
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1499 * while compiling it. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1500 if (end != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1501 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1502 save_char = *end;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1503 *end = NUL;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1504 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1505 save_cpo = p_cpo;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1506 p_cpo = (char_u *)"";
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1507 regmatch.regprog = vim_regcomp(pat, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1508 regmatch.rm_ic = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1509 if (end != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1510 *end = save_char;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1511 p_cpo = save_cpo;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1512 if (regmatch.regprog == NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1513 EMSG2(_(e_invarg2), pat);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1514 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1515 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1516 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1517 * Save the value of got_int and reset it. We don't want
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1518 * a previous interruption cancel matching, only hitting
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1519 * CTRL-C while matching should abort it.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1520 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1521 prev_got_int = got_int;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1522 got_int = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1523 caught = vim_regexec_nl(&regmatch, current_exception->value,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1524 (colnr_T)0);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1525 got_int |= prev_got_int;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1526 vim_free(regmatch.regprog);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1527 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1528 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1529 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1530
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1531 if (caught)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1532 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1533 /* Make this ":catch" clause active and reset did_emsg, got_int,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1534 * and did_throw. Put the exception on the caught stack. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1535 cstack->cs_flags[idx] |= CSF_ACTIVE | CSF_CAUGHT;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1536 did_emsg = got_int = did_throw = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1537 catch_exception((except_T *)cstack->cs_exception[idx]);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1538 /* It's mandatory that the current exception is stored in the cstack
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1539 * so that it can be discarded at the next ":catch", ":finally", or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1540 * ":endtry" or when the catch clause is left by a ":continue",
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1541 * ":break", ":return", ":finish", error, interrupt, or another
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1542 * exception. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1543 if (cstack->cs_exception[cstack->cs_idx] != current_exception)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1544 EMSG(_(e_internal));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1545 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1546 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1547 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1548 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1549 * If there is a preceding catch clause and it caught the exception,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1550 * finish the exception now. This happens also after errors except
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1551 * when this ":catch" was after the ":finally" or not within
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1552 * a ":try". Make the try conditional inactive so that the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1553 * following catch clauses are skipped. On an error or interrupt
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1554 * after the preceding try block or catch clause was left by
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1555 * a ":continue", ":break", ":return", or ":finish", discard the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1556 * pending action.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1557 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1558 cleanup_conditionals(cstack, CSF_TRY, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1559 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1560 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1561
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1562 if (end != NULL)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1563 eap->nextcmd = find_nextcmd(end);
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 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1567 * ":finally"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1568 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1569 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1570 ex_finally(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1571 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1572 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1573 int idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1574 int skip = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1575 int pending = CSTP_NONE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1576 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1577
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1578 if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1579 eap->errmsg = (char_u *)N_("E606: :finally without :try");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1580 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1581 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1582 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1583 {
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1584 eap->errmsg = get_end_emsg(cstack);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1585 for (idx = cstack->cs_idx - 1; idx > 0; --idx)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1586 if (cstack->cs_flags[idx] & CSF_TRY)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1587 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1588 /* Make this error pending, so that the commands in the following
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1589 * finally clause can be executed. This overrules also a pending
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1590 * ":continue", ":break", ":return", or ":finish". */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1591 pending = CSTP_ERROR;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1592 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1593 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1594 idx = cstack->cs_idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1595
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1596 if (cstack->cs_flags[idx] & CSF_FINALLY)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1597 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1598 /* Give up for a multiple ":finally" and ignore it. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1599 eap->errmsg = (char_u *)N_("E607: multiple :finally");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1600 return;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1601 }
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1602 rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR,
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1603 &cstack->cs_looplevel);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1604
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1605 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1606 * Don't do something when the corresponding try block never got active
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1607 * (because of an inactive surrounding conditional or after an error or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1608 * interrupt or throw) or for a ":finally" without ":try" or a multiple
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1609 * ":finally". After every other error (did_emsg or the conditional
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1610 * errors detected above) or after an interrupt (got_int) or an
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1611 * exception (did_throw), the finally clause must be executed.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1612 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1613 skip = !(cstack->cs_flags[cstack->cs_idx] & CSF_TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1614
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1615 if (!skip)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1616 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1617 /* When debugging or a breakpoint was encountered, display the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1618 * debug prompt (if not already done). The user then knows that the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1619 * finally clause is executed. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1620 if (dbg_check_skipped(eap))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1621 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1622 /* Handle a ">quit" debug command as if an interrupt had
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1623 * occurred before the ":finally". That is, discard the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1624 * original exception and replace it by an interrupt
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1625 * exception. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1626 (void)do_intthrow(cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1627 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1628
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1629 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1630 * If there is a preceding catch clause and it caught the exception,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1631 * finish the exception now. This happens also after errors except
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1632 * when this is a multiple ":finally" or one not within a ":try".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1633 * After an error or interrupt, this also discards a pending
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1634 * ":continue", ":break", ":finish", or ":return" from the preceding
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1635 * try block or catch clause.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1636 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1637 cleanup_conditionals(cstack, CSF_TRY, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1638
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1639 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1640 * Make did_emsg, got_int, did_throw pending. If set, they overrule
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1641 * a pending ":continue", ":break", ":return", or ":finish". Then
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1642 * we have particularly to discard a pending return value (as done
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1643 * by the call to cleanup_conditionals() above when did_emsg or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1644 * got_int is set). The pending values are restored by the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1645 * ":endtry", except if there is a new error, interrupt, exception,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1646 * ":continue", ":break", ":return", or ":finish" in the following
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1647 * finally clause. A missing ":endwhile", ":endfor" or ":endif"
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1648 * detected here is treated as if did_emsg and did_throw had
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1649 * already been set, respectively in case that the error is not
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1650 * converted to an exception, did_throw had already been unset.
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1651 * We must not set did_emsg here since that would suppress the
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1652 * error message.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1653 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1654 if (pending == CSTP_ERROR || did_emsg || got_int || did_throw)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1655 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1656 if (cstack->cs_pending[cstack->cs_idx] == CSTP_RETURN)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1657 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1658 report_discard_pending(CSTP_RETURN,
68
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
1659 cstack->cs_rettv[cstack->cs_idx]);
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
1660 discard_pending_return(cstack->cs_rettv[cstack->cs_idx]);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1661 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1662 if (pending == CSTP_ERROR && !did_emsg)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1663 pending |= (THROW_ON_ERROR) ? CSTP_THROW : 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1664 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1665 pending |= did_throw ? CSTP_THROW : 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1666 pending |= did_emsg ? CSTP_ERROR : 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1667 pending |= got_int ? CSTP_INTERRUPT : 0;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1668 cstack->cs_pending[cstack->cs_idx] = pending;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1669
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1670 /* It's mandatory that the current exception is stored in the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1671 * cstack so that it can be rethrown at the ":endtry" or be
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1672 * discarded if the finally clause is left by a ":continue",
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1673 * ":break", ":return", ":finish", error, interrupt, or another
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1674 * exception. When emsg() is called for a missing ":endif" or
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1675 * a missing ":endwhile"/":endfor" detected here, the
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1676 * exception will be discarded. */
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1677 if (did_throw && cstack->cs_exception[cstack->cs_idx]
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
1678 != current_exception)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1679 EMSG(_(e_internal));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1680 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1681
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1682 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1683 * Set CSL_HAD_FINA, so do_cmdline() will reset did_emsg,
22
cc049b00ee70 updated for version 7.0014
vimboss
parents: 21
diff changeset
1684 * got_int, and did_throw and make the finally clause active.
cc049b00ee70 updated for version 7.0014
vimboss
parents: 21
diff changeset
1685 * This will happen after emsg() has been called for a missing
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1686 * ":endif" or a missing ":endwhile"/":endfor" detected here, so
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1687 * that the following finally clause will be executed even then.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1688 */
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1689 cstack->cs_lflags |= CSL_HAD_FINA;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1690 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1691 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1692 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1693
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1694 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1695 * ":endtry"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1696 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1697 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1698 ex_endtry(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1699 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1700 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1701 int idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1702 int skip;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1703 int rethrow = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1704 int pending = CSTP_NONE;
68
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
1705 void *rettv = NULL;
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1706 struct condstack *cstack = eap->cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1707
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1708 if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1709 eap->errmsg = (char_u *)N_("E602: :endtry without :try");
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1710 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1711 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1712 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1713 * Don't do something after an error, interrupt or throw in the try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1714 * block, catch clause, or finally clause preceding this ":endtry" or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1715 * when an error or interrupt occurred after a ":continue", ":break",
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1716 * ":return", or ":finish" in a try block or catch clause preceding this
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1717 * ":endtry" or when the try block never got active (because of an
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1718 * inactive surrounding conditional or after an error or interrupt or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1719 * throw) or when there is a surrounding conditional and it has been
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1720 * made inactive by a ":continue", ":break", ":return", or ":finish" in
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1721 * the finally clause. The latter case need not be tested since then
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1722 * anything pending has already been discarded. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1723 skip = did_emsg || got_int || did_throw ||
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1724 !(cstack->cs_flags[cstack->cs_idx] & CSF_TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1725
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1726 if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1727 {
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1728 eap->errmsg = get_end_emsg(cstack);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1729 /* Find the matching ":try" and report what's missing. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1730 idx = cstack->cs_idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1731 do
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1732 --idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1733 while (idx > 0 && !(cstack->cs_flags[idx] & CSF_TRY));
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1734 rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR,
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
1735 &cstack->cs_looplevel);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1736 skip = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1737
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1738 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1739 * If an exception is being thrown, discard it to prevent it from
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1740 * being rethrown at the end of this function. It would be
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1741 * discarded by the error message, anyway. Resets did_throw.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1742 * This does not affect the script termination due to the error
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1743 * since "trylevel" is decremented after emsg() has been called.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1744 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1745 if (did_throw)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1746 discard_current_exception();
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1747 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1748 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1749 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1750 idx = cstack->cs_idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1751
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1752 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1753 * If we stopped with the exception currently being thrown at this
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1754 * try conditional since we didn't know that it doesn't have
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1755 * a finally clause, we need to rethrow it after closing the try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1756 * conditional.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1757 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1758 if (did_throw && (cstack->cs_flags[idx] & CSF_TRUE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1759 && !(cstack->cs_flags[idx] & CSF_FINALLY))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1760 rethrow = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1761 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1762
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1763 /* If there was no finally clause, show the user when debugging or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1764 * a breakpoint was encountered that the end of the try conditional has
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1765 * been reached: display the debug prompt (if not already done). Do
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1766 * this on normal control flow or when an exception was thrown, but not
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1767 * on an interrupt or error not converted to an exception or when
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1768 * a ":break", ":continue", ":return", or ":finish" is pending. These
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1769 * actions are carried out immediately.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1770 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1771 if ((rethrow || (!skip
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1772 && !(cstack->cs_flags[idx] & CSF_FINALLY)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1773 && !cstack->cs_pending[idx]))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1774 && dbg_check_skipped(eap))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1775 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1776 /* Handle a ">quit" debug command as if an interrupt had occurred
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1777 * before the ":endtry". That is, throw an interrupt exception and
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1778 * set "skip" and "rethrow". */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1779 if (got_int)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1780 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1781 skip = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1782 (void)do_intthrow(cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1783 /* The do_intthrow() call may have reset did_throw or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1784 * cstack->cs_pending[idx].*/
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1785 rethrow = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1786 if (did_throw && !(cstack->cs_flags[idx] & CSF_FINALLY))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1787 rethrow = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1788 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1789 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1790
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1791 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1792 * If a ":return" is pending, we need to resume it after closing the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1793 * try conditional; remember the return value. If there was a finally
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1794 * clause making an exception pending, we need to rethrow it. Make it
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1795 * the exception currently being thrown.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1796 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1797 if (!skip)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1798 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1799 pending = cstack->cs_pending[idx];
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1800 cstack->cs_pending[idx] = CSTP_NONE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1801 if (pending == CSTP_RETURN)
68
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
1802 rettv = cstack->cs_rettv[idx];
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1803 else if (pending & CSTP_THROW)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1804 current_exception = cstack->cs_exception[idx];
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1805 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1806
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1807 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1808 * Discard anything pending on an error, interrupt, or throw in the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1809 * finally clause. If there was no ":finally", discard a pending
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1810 * ":continue", ":break", ":return", or ":finish" if an error or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1811 * interrupt occurred afterwards, but before the ":endtry" was reached.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1812 * If an exception was caught by the last of the catch clauses and there
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1813 * was no finally clause, finish the exception now. This happens also
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1814 * after errors except when this ":endtry" is not within a ":try".
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1815 * Restore "emsg_silent" if it has been reset by this try conditional.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1816 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1817 cleanup_conditionals(cstack, CSF_TRY | CSF_SILENT, TRUE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1818
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1819 --cstack->cs_idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1820 --cstack->cs_trylevel;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1821
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1822 if (!skip)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1823 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1824 report_resume_pending(pending,
68
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
1825 (pending == CSTP_RETURN) ? rettv :
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1826 (pending & CSTP_THROW) ? (void *)current_exception : NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1827 switch (pending)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1828 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1829 case CSTP_NONE:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1830 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1831
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1832 /* Reactivate a pending ":continue", ":break", ":return",
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1833 * ":finish" from the try block or a catch clause of this try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1834 * conditional. This is skipped, if there was an error in an
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1835 * (unskipped) conditional command or an interrupt afterwards
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1836 * or if the finally clause is present and executed a new error,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1837 * interrupt, throw, ":continue", ":break", ":return", or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1838 * ":finish". */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1839 case CSTP_CONTINUE:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1840 ex_continue(eap);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1841 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1842 case CSTP_BREAK:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1843 ex_break(eap);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1844 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1845 case CSTP_RETURN:
68
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
1846 do_return(eap, FALSE, FALSE, rettv);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1847 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1848 case CSTP_FINISH:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1849 do_finish(eap, FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1850 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1851
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1852 /* When the finally clause was entered due to an error,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1853 * interrupt or throw (as opposed to a ":continue", ":break",
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1854 * ":return", or ":finish"), restore the pending values of
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1855 * did_emsg, got_int, and did_throw. This is skipped, if there
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1856 * was a new error, interrupt, throw, ":continue", ":break",
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1857 * ":return", or ":finish". in the finally clause. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1858 default:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1859 if (pending & CSTP_ERROR)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1860 did_emsg = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1861 if (pending & CSTP_INTERRUPT)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1862 got_int = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1863 if (pending & CSTP_THROW)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1864 rethrow = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1865 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1866 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1867 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1868
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1869 if (rethrow)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1870 /* Rethrow the current exception (within this cstack). */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1871 do_throw(cstack);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1872 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1873 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1874
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
1875 /*
36
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1876 * enter_cleanup() and leave_cleanup()
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1877 *
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1878 * Functions to be called before/after invoking a sequence of autocommands for
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1879 * cleanup for a failed command. (Failure means here that a call to emsg()
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1880 * has been made, an interrupt occurred, or there is an uncaught exception
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1881 * from a previous autocommand execution of the same command.)
24
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1882 *
36
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1883 * 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
1884 * pointer to leave_cleanup(). The cleanup_T structure stores the pending
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1885 * error/interrupt/exception state.
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1886 */
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1887
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1888 /*
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1889 * This function works a bit like ex_finally() except that there was not
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1890 * 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
1891 * interrupt has not (yet) been converted to an exception. This function
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1892 * saves the error/interrupt/ exception state and prepares for the call to
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1893 * do_cmdline() that is going to be made for the cleanup autocommand
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1894 * execution.
24
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1895 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1896 void
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1897 enter_cleanup(csp)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1898 cleanup_T *csp;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1899 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1900 int pending = CSTP_NONE;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1901
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1902 /*
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1903 * Postpone did_emsg, got_int, did_throw. The pending values will be
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1904 * restored by leave_cleanup() except if there was an aborting error,
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1905 * interrupt, or uncaught exception after this function ends.
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1906 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1907 if (did_emsg || got_int || did_throw || need_rethrow)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1908 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1909 csp->pending = (did_emsg ? CSTP_ERROR : 0)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1910 | (got_int ? CSTP_INTERRUPT : 0)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1911 | (did_throw ? CSTP_THROW : 0)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1912 | (need_rethrow ? CSTP_THROW : 0);
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1913
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1914 /* If we are currently throwing an exception (did_throw), save it as
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1915 * well. On an error not yet converted to an exception, update
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1916 * "force_abort" and reset "cause_abort" (as do_errthrow() would do).
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1917 * 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
1918 * for autocommand execution. We need not save *msg_list because
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1919 * there is an extra instance for every call of do_cmdline(), anyway.
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1920 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1921 if (did_throw || need_rethrow)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1922 csp->exception = current_exception;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1923 else
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1924 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1925 csp->exception = NULL;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1926 if (did_emsg)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1927 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1928 force_abort |= cause_abort;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1929 cause_abort = FALSE;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1930 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1931 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1932 did_emsg = got_int = did_throw = need_rethrow = FALSE;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1933
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1934 /* Report if required by the 'verbose' option or when debugging. */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1935 report_make_pending(pending, csp->exception);
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1936 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1937 else
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1938 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1939 csp->pending = CSTP_NONE;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1940 csp->exception = NULL;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1941 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1942 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1943
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1944 /*
36
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1945 * See comment above enter_cleanup() for how this function is used.
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1946 *
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1947 * 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
1948 * 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
1949 * had not (yet) been converted to an exception when the cleanup autocommand
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1950 * sequence was invoked.
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1951 *
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1952 * 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
1953 * filled by enter_cleanup() as an argument; it restores the error/interrupt/
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1954 * exception state saved by that function - except there was an aborting
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1955 * error, an interrupt or an uncaught exception during execution of the
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1956 * cleanup autocommands. In the latter case, the saved error/interrupt/
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
1957 * exception state is discarded.
24
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1958 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1959 void
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1960 leave_cleanup(csp)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1961 cleanup_T *csp;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1962 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1963 int pending = csp->pending;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1964
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1965 if (pending == CSTP_NONE) /* nothing to do */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1966 return;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1967
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1968 /* If there was an aborting error, an interrupt, or an uncaught exception
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1969 * after the corresponding call to enter_cleanup(), discard what has been
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1970 * made pending by it. Report this to the user if required by the
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1971 * 'verbose' option or when debugging. */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1972 if (aborting() || need_rethrow)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1973 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1974 if (pending & CSTP_THROW)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1975 /* Cancel the pending exception (includes report). */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1976 discard_exception((except_T *)csp->exception, FALSE);
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1977 else
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1978 report_discard_pending(pending, NULL);
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1979
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1980 /* If an error was about to be converted to an exception when
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1981 * enter_cleanup() was called, free the message list. */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1982 free_msglist(*msg_list);
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1983 *msg_list = NULL;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1984 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1985
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1986 /*
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1987 * If there was no new error, interrupt, or throw between the calls
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1988 * to enter_cleanup() and leave_cleanup(), restore the pending
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1989 * error/interrupt/exception state.
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1990 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1991 else
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1992 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1993 /*
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1994 * If there was an exception being thrown when enter_cleanup() was
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1995 * called, we need to rethrow it. Make it the exception currently
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1996 * being thrown.
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1997 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1998 if (pending & CSTP_THROW)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
1999 current_exception = csp->exception;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2000
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2001 /*
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2002 * If an error was about to be converted to an exception when
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2003 * enter_cleanup() was called, let "cause_abort" take the part of
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2004 * "force_abort" (as done by cause_errthrow()).
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2005 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2006 else if (pending & CSTP_ERROR)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2007 {
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2008 cause_abort = force_abort;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2009 force_abort = FALSE;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2010 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2011
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2012 /*
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2013 * Restore the pending values of did_emsg, got_int, and did_throw.
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2014 */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2015 if (pending & CSTP_ERROR)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2016 did_emsg = TRUE;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2017 if (pending & CSTP_INTERRUPT)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2018 got_int = TRUE;
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2019 if (pending & CSTP_THROW)
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2020 need_rethrow = TRUE; /* did_throw will be set by do_one_cmd() */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2021
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2022 /* Report if required by the 'verbose' option or when debugging. */
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2023 report_resume_pending(pending,
36
125e80798a85 updated for version 7.0021
vimboss
parents: 24
diff changeset
2024 (pending & CSTP_THROW) ? (void *)current_exception : NULL);
24
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2025 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2026 }
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2027
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2028
8ff7fd162d3c updated for version 7.0016
vimboss
parents: 22
diff changeset
2029 /*
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2030 * Make conditionals inactive and discard what's pending in finally clauses
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2031 * 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
2032 * finally clause is reached. If this is in an active catch clause, finish
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
2033 * the caught exception.
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
2034 * Return the cstack index where the search stopped.
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2035 * 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
2036 * the latter meaning the innermost try conditional not in its finally clause.
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2037 * "inclusive" tells whether the conditional searched for should be made
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2038 * inactive itself (a try conditional not in its finally claused possibly find
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2039 * before is always made inactive). If "inclusive" is TRUE and
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2040 * "searched_cond" is CSF_TRY|CSF_SILENT, the saved former value of
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2041 * "emsg_silent", if reset when the try conditional finally reached was
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2042 * entered, is restored (unsed by ex_endtry()). This is normally done only
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2043 * when such a try conditional is left.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2044 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2045 int
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2046 cleanup_conditionals(cstack, searched_cond, inclusive)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2047 struct condstack *cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2048 int searched_cond;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2049 int inclusive;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2050 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2051 int idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2052 int stop = FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2053
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2054 for (idx = cstack->cs_idx; idx >= 0; --idx)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2055 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2056 if (cstack->cs_flags[idx] & CSF_TRY)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2057 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2058 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2059 * Discard anything pending in a finally clause and continue the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2060 * search. There may also be a pending ":continue", ":break",
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2061 * ":return", or ":finish" before the finally clause. We must not
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2062 * discard it, unless an error or interrupt occurred afterwards.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2063 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2064 if (did_emsg || got_int ||
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2065 (cstack->cs_flags[idx] & CSF_FINALLY))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2066 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2067 switch (cstack->cs_pending[idx])
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2068 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2069 case CSTP_NONE:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2070 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2071
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2072 case CSTP_CONTINUE:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2073 case CSTP_BREAK:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2074 case CSTP_FINISH:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2075 report_discard_pending(cstack->cs_pending[idx], NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2076 cstack->cs_pending[idx] = CSTP_NONE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2077 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2078
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2079 case CSTP_RETURN:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2080 report_discard_pending(CSTP_RETURN,
68
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
2081 cstack->cs_rettv[idx]);
a97c6902ecd9 updated for version 7.0030
vimboss
parents: 36
diff changeset
2082 discard_pending_return(cstack->cs_rettv[idx]);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2083 cstack->cs_pending[idx] = CSTP_NONE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2084 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2085
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2086 default:
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2087 if (cstack->cs_flags[idx] & CSF_FINALLY)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2088 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2089 if (cstack->cs_pending[idx] & CSTP_THROW)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2090 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2091 /* Cancel the pending exception. This is in the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2092 * finally clause, so that the stack of the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2093 * caught exceptions is not involved. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2094 discard_exception((except_T *)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2095 cstack->cs_exception[idx],
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2096 FALSE);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2097 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2098 else
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2099 report_discard_pending(cstack->cs_pending[idx],
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2100 NULL);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2101 cstack->cs_pending[idx] = CSTP_NONE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2102 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2103 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2104 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2105 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2106
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2107 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2108 * Stop at a try conditional not in its finally clause. If this try
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2109 * conditional is in an active catch clause, finish the caught
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2110 * exception.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2111 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2112 if (!(cstack->cs_flags[idx] & CSF_FINALLY))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2113 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2114 if ((cstack->cs_flags[idx] & CSF_ACTIVE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2115 && (cstack->cs_flags[idx] & CSF_CAUGHT))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2116 finish_exception((except_T *)cstack->cs_exception[idx]);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2117 /* Stop at this try conditional - except the try block never
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2118 * got active (because of an inactive surrounding conditional
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2119 * or when the ":try" appeared after an error or interrupt or
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2120 * throw). */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2121 if (cstack->cs_flags[idx] & CSF_TRUE)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2122 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2123 if (searched_cond == 0 && !inclusive)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2124 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2125 stop = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2126 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2127 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2128 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2129
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2130 /* Stop on the searched conditional type (even when the surrounding
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2131 * conditional is not active or something has been made pending).
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2132 * If "inclusive" is TRUE and "searched_cond" is CSF_TRY|CSF_SILENT,
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2133 * check first whether "emsg_silent" needs to be restored. */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2134 if (cstack->cs_flags[idx] & searched_cond)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2135 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2136 if (!inclusive)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2137 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2138 stop = TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2139 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2140 cstack->cs_flags[idx] &= ~CSF_ACTIVE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2141 if (stop && searched_cond != (CSF_TRY | CSF_SILENT))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2142 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2143
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2144 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2145 * When leaving a try conditinal that reset "emsg_silent" on its entry
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2146 * after saving the original value, restore that value here and free the
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2147 * memory used to store it.
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2148 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2149 if ((cstack->cs_flags[idx] & CSF_TRY)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2150 && (cstack->cs_flags[idx] & CSF_SILENT))
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2151 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2152 eslist_T *elem;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2153
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2154 elem = cstack->cs_emsg_silent_list;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2155 cstack->cs_emsg_silent_list = elem->next;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2156 emsg_silent = elem->saved_emsg_silent;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2157 vim_free(elem);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2158 cstack->cs_flags[idx] &= ~CSF_SILENT;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2159 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2160 if (stop)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2161 break;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2162 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2163 return idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2164 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2165
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2166 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2167 * Return an appropriate error message for a missing endwhile/endfor/endif.
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2168 */
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2169 static char_u *
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2170 get_end_emsg(cstack)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2171 struct condstack *cstack;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2172 {
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2173 if (cstack->cs_flags[cstack->cs_idx] & CSF_WHILE)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2174 return e_endwhile;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2175 if (cstack->cs_flags[cstack->cs_idx] & CSF_FOR)
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2176 return e_endfor;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2177 return e_endif;
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2178 }
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2179
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2180
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2181 /*
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2182 * Rewind conditionals until index "idx" is reached. "cond_type" and
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2183 * "cond_level" specify a conditional type and the address of a level variable
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2184 * which is to be decremented with each skipped conditional of the specified
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2185 * type.
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
2186 * Also free "for info" structures where needed.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2187 */
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
2188 void
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2189 rewind_conditionals(cstack, idx, cond_type, cond_level)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2190 struct condstack *cstack;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2191 int idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2192 int cond_type;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2193 int *cond_level;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2194 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2195 while (cstack->cs_idx > idx)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2196 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2197 if (cstack->cs_flags[cstack->cs_idx] & cond_type)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2198 --*cond_level;
79
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
2199 if (cstack->cs_flags[cstack->cs_idx] & CSF_FOR)
e918d3e340a4 updated for version 7.0032
vimboss
parents: 75
diff changeset
2200 free_for_info(cstack->cs_forinfo[cstack->cs_idx]);
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2201 --cstack->cs_idx;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2202 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2203 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2204
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2205 /*
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2206 * ":endfunction" when not after a ":function"
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2207 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2208 /*ARGSUSED*/
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2209 void
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2210 ex_endfunction(eap)
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2211 exarg_T *eap;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2212 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2213 EMSG(_("E193: :endfunction not inside a function"));
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2214 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2215
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2216 /*
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2217 * Return TRUE if the string "p" looks like a ":while" or ":for" command.
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2218 */
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2219 int
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2220 has_loop_cmd(p)
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2221 char_u *p;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2222 {
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2223 p = skipwhite(p);
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2224 while (*p == ':')
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2225 p = skipwhite(p + 1);
75
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2226 if ((p[0] == 'w' && p[1] == 'h')
388f285bda1b updated for version 7.0031
vimboss
parents: 68
diff changeset
2227 || (p[0] == 'f' && p[1] == 'o' && p[2] == 'r'))
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2228 return TRUE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2229 return FALSE;
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2230 }
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2231
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
2232 #endif /* FEAT_EVAL */