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7
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1 /* vi:set ts=8 sts=4 sw=4:
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2 *
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3 * if_sniff.c Interface between Vim and SNiFF+
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4 *
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5 * $Id$
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6 *
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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 #include "vim.h"
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11
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12 #ifdef WIN32
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13 # include <stdio.h>
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14 # include <fcntl.h>
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15 # include <io.h>
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16 # include <process.h>
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17 # include <string.h>
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18 # include <assert.h>
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19 #else
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20 # ifdef FEAT_GUI_X11
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21 # include "gui_x11.pro"
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22 # endif
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23 # include "os_unixx.h"
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24 #endif
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25
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26 static int sniffemacs_pid;
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27
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28 int fd_from_sniff;
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29 int sniff_connected = 0;
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30 int sniff_request_waiting = 0;
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31 int want_sniff_request = 0;
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32
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33 #define MAX_REQUEST_LEN 512
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34
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35 #define NEED_SYMBOL 2
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36 #define EMPTY_SYMBOL 4
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37 #define NEED_FILE 8
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38 #define SILENT 16
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39 #define DISCONNECT 32
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40 #define CONNECT 64
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41
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42 #define RQ_NONE 0
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43 #define RQ_SIMPLE 1
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44 #define RQ_CONTEXT NEED_FILE + NEED_SYMBOL
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45 #define RQ_SCONTEXT NEED_FILE + NEED_SYMBOL + EMPTY_SYMBOL
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46 #define RQ_NOSYMBOL NEED_FILE
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47 #define RQ_SILENT RQ_NOSYMBOL + SILENT
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48 #define RQ_CONNECT RQ_NONE + CONNECT
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49 #define RQ_DISCONNECT RQ_SIMPLE + DISCONNECT
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50
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51 struct sn_cmd
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52 {
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53 char *cmd_name;
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54 char cmd_code;
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55 char *cmd_msg;
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56 int cmd_type;
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57 };
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58
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59 struct sn_cmd_list
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60 {
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61 struct sn_cmd* sniff_cmd;
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62 struct sn_cmd_list* next_cmd;
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63 };
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64
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65 static struct sn_cmd sniff_cmds[] =
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66 {
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67 { "toggle", 'e', N_("Toggle implementation/definition"),RQ_SCONTEXT },
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68 { "superclass", 's', N_("Show base class of"), RQ_CONTEXT },
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69 { "overridden", 'm', N_("Show overridden member function"),RQ_SCONTEXT },
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70 { "retrieve-file", 'r', N_("Retrieve from file"), RQ_CONTEXT },
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71 { "retrieve-project",'p', N_("Retrieve from project"), RQ_CONTEXT },
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72 { "retrieve-all-projects",
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73 'P', N_("Retrieve from all projects"), RQ_CONTEXT },
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74 { "retrieve-next", 'R', N_("Retrieve"), RQ_CONTEXT },
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75 { "goto-symbol", 'g', N_("Show source of"), RQ_CONTEXT },
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76 { "find-symbol", 'f', N_("Find symbol"), RQ_CONTEXT },
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77 { "browse-class", 'w', N_("Browse class"), RQ_CONTEXT },
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78 { "hierarchy", 't', N_("Show class in hierarchy"), RQ_CONTEXT },
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79 { "restr-hier", 'T', N_("Show class in restricted hierarchy"),RQ_CONTEXT },
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80 { "xref-to", 'x', N_("Xref refers to"), RQ_CONTEXT },
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81 { "xref-by", 'X', N_("Xref referred by"), RQ_CONTEXT },
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82 { "xref-has", 'c', N_("Xref has a"), RQ_CONTEXT },
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83 { "xref-used-by", 'C', N_("Xref used by"), RQ_CONTEXT },
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84 { "show-docu", 'd', N_("Show docu of"), RQ_CONTEXT },
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85 { "gen-docu", 'D', N_("Generate docu for"), RQ_CONTEXT },
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86 { "connect", 'y', NULL, RQ_CONNECT },
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87 { "disconnect", 'q', NULL, RQ_DISCONNECT },
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88 { "font-info", 'z', NULL, RQ_SILENT },
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89 { "update", 'u', NULL, RQ_SILENT },
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90 { NULL, '\0', NULL, 0}
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91 };
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92
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93
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94 static char *SniffEmacs[2] = {"sniffemacs", (char *)NULL}; /* Yes, Emacs! */
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95 static int fd_to_sniff;
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96 static int sniff_will_disconnect = 0;
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97 static char msg_sniff_disconnect[] = N_("Cannot connect to SNiFF+. Check environment (sniffemacs must be found in $PATH).\n");
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98 static char sniff_rq_sep[] = " ";
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99 static struct sn_cmd_list *sniff_cmd_ext = NULL;
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100
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101 /* Initializing vim commands
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102 * executed each time vim connects to Sniff
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103 */
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104 static char *init_cmds[]= {
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105 "augroup sniff",
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106 "autocmd BufWritePost * sniff update",
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107 "autocmd BufReadPost * sniff font-info",
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108 "autocmd VimLeave * sniff disconnect",
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109 "augroup END",
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110
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111 "let g:sniff_connected = 1",
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112
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113 "if ! exists('g:sniff_mappings_sourced')|"
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114 "if ! exists('g:sniff_mappings')|"
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115 "if exists('$SNIFF_DIR4')|"
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116 "let g:sniff_mappings='$SNIFF_DIR4/config/integrations/vim/sniff.vim'|"
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117 "else|"
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118 "let g:sniff_mappings='$SNIFF_DIR/config/sniff.vim'|"
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119 "endif|"
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120 "endif|"
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121 "let g:sniff_mappings=expand(g:sniff_mappings)|"
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122 "if filereadable(g:sniff_mappings)|"
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123 "execute 'source' g:sniff_mappings|"
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124 "let g:sniff_mappings_sourced=1|"
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125 "endif|"
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126 "endif",
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127
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128 NULL
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129 };
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130
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131 /*-------- Function Prototypes ----------------------------------*/
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132
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133 static int ConnectToSniffEmacs __ARGS((void));
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134 static void sniff_connect __ARGS((void));
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135 static void HandleSniffRequest __ARGS((char* buffer));
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136 static int get_request __ARGS((int fd, char *buf, int maxlen));
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137 static void WriteToSniff __ARGS((char *str));
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138 static void SendRequest __ARGS((struct sn_cmd *command, char* symbol));
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139 static void vi_msg __ARGS((char *));
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140 static void vi_error_msg __ARGS((char *));
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141 static char *vi_symbol_under_cursor __ARGS((void));
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142 static void vi_open_file __ARGS((char *));
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143 static char *vi_buffer_name __ARGS((void));
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144 static buf_T *vi_find_buffer __ARGS((char *));
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145 static void vi_exec_cmd __ARGS((char *));
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146 static void vi_set_cursor_pos __ARGS((long char_nr));
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147 static long vi_cursor_pos __ARGS((void));
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148
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149 /* debug trace */
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150 #if 0
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151 static FILE* _tracefile = NULL;
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152 #define SNIFF_TRACE_OPEN(file) if (!_tracefile) _tracefile = fopen(file, "w")
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153 #define SNIFF_TRACE(msg) fprintf(_tracefile, msg); fflush(_tracefile);
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154 #define SNIFF_TRACE1(msg, arg) fprintf(_tracefile, msg,arg); fflush(_tracefile);
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155 #define SNIFF_TRACE_CLOSE fclose(_tracefile); _tracefile=NULL;
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156 #else
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157 #define SNIFF_TRACE_OPEN(file)
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158 #define SNIFF_TRACE(msg)
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159 #define SNIFF_TRACE1(msg, arg)
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160 #define SNIFF_TRACE_CLOSE
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161 #endif
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162
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163 /*-------- Windows Only Declarations -----------------------------*/
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164 #ifdef WIN32
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165
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166 static int sniff_request_processed=1;
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167 static HANDLE sniffemacs_handle=NULL;
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168 static HANDLE readthread_handle=NULL;
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169 static HANDLE handle_to_sniff=NULL;
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170 static HANDLE handle_from_sniff=NULL;
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171
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172 struct sniffBufNode
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173 {
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174 struct sniffBufNode *next;
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175 int bufLen;
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176 char buf[MAX_REQUEST_LEN];
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177 };
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178 static struct sniffBufNode *sniffBufStart=NULL;
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179 static struct sniffBufNode *sniffBufEnd=NULL;
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180 static HANDLE hBufferMutex=NULL;
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181
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182 # ifdef FEAT_GUI_W32
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183 extern HWND s_hwnd; /* gvim's Window handle */
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184 # endif
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185 /*
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186 * some helper functions for Windows port only
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187 */
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188
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189 static HANDLE
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190 ExecuteDetachedProgram(char *szBinary, char *szCmdLine,
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191 HANDLE hStdInput, HANDLE hStdOutput)
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192 {
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193 BOOL bResult;
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194 DWORD nError;
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195 PROCESS_INFORMATION aProcessInformation;
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196 PROCESS_INFORMATION *pProcessInformation= &aProcessInformation;
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197 STARTUPINFO aStartupInfo;
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198 STARTUPINFO *pStartupInfo= &aStartupInfo;
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199 DWORD dwCreationFlags= 0;
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200 char szPath[512];
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201 HINSTANCE hResult;
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202
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203 hResult = FindExecutable(szBinary, ".", szPath);
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204 if ((int)hResult <= 32)
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205 {
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206 /* can't find the exe file */
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207 return NULL;
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208 }
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209
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210 ZeroMemory(pStartupInfo, sizeof(*pStartupInfo));
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211 pStartupInfo->dwFlags= STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES;
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212 pStartupInfo->hStdInput = hStdInput;
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213 pStartupInfo->hStdOutput = hStdOutput;
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214 pStartupInfo->wShowWindow= SW_HIDE;
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215 pStartupInfo->cb = sizeof(STARTUPINFO);
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216
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217 bResult= CreateProcess(
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218 szPath,
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219 szCmdLine,
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220 NULL, /* security attr for process */
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221 NULL, /* security attr for primary thread */
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222 TRUE, /* DO inherit stdin and stdout */
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223 dwCreationFlags, /* creation flags */
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224 NULL, /* environment */
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225 ".", /* current directory */
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226 pStartupInfo, /* startup info: NULL crashes */
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227 pProcessInformation /* process information: NULL crashes */
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228 );
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229 nError= GetLastError();
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230 if (bResult)
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231 {
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232 CloseHandle(pProcessInformation->hThread);
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233 CloseHandle(hStdInput);
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234 CloseHandle(hStdOutput);
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235 return(pProcessInformation->hProcess);
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236 }
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237 else
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238 return(NULL);
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239 }
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240
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241 /*
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242 * write to the internal Thread / Thread communications buffer.
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243 * Return TRUE if successful, FALSE else.
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244 */
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245 static BOOL
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246 writeToBuffer(char *msg, int len)
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247 {
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248 DWORD dwWaitResult; /* Request ownership of mutex. */
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249 struct sniffBufNode *bn;
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250 int bnSize;
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251
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252 SNIFF_TRACE1("writeToBuffer %d\n", len);
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253 bnSize = sizeof(struct sniffBufNode) - MAX_REQUEST_LEN + len + 1;
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254 if (bnSize < 128) bnSize = 128; /* minimum length to avoid fragmentation */
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255 bn = (struct sniffBufNode *)malloc(bnSize);
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256 if (!bn)
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257 return FALSE;
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258
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259 memcpy(bn->buf, msg, len);
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260 bn->buf[len]='\0'; /* terminate CString for added safety */
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261 bn->next = NULL;
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262 bn->bufLen = len;
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263 /* now, acquire a Mutex for adding the string to our linked list */
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264 dwWaitResult = WaitForSingleObject(
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265 hBufferMutex, /* handle of mutex */
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266 1000L); /* one-second time-out interval */
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267 if (dwWaitResult == WAIT_OBJECT_0)
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268 {
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269 /* The thread got mutex ownership. */
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270 if (sniffBufEnd)
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271 {
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272 sniffBufEnd->next = bn;
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273 sniffBufEnd = bn;
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274 }
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275 else
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276 sniffBufStart = sniffBufEnd = bn;
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277 /* Release ownership of the mutex object. */
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278 if (! ReleaseMutex(hBufferMutex))
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279 {
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280 /* Deal with error. */
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281 }
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282 return TRUE;
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283 }
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284
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285 /* Cannot get mutex ownership due to time-out or mutex object abandoned. */
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286 free(bn);
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287 return FALSE;
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288 }
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289
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290 /*
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291 * read from the internal Thread / Thread communications buffer.
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292 * Return TRUE if successful, FALSE else.
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293 */
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294 static int
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295 ReadFromBuffer(char *buf, int maxlen)
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296 {
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297 DWORD dwWaitResult; /* Request ownership of mutex. */
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298 int theLen;
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299 struct sniffBufNode *bn;
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300
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301 dwWaitResult = WaitForSingleObject(
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302 hBufferMutex, /* handle of mutex */
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303 1000L); /* one-second time-out interval */
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304 if (dwWaitResult == WAIT_OBJECT_0)
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305 {
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306 if (!sniffBufStart)
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307 {
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308 /* all pending Requests Processed */
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309 theLen = 0;
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310 }
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311 else
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312 {
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313 bn = sniffBufStart;
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314 theLen = bn->bufLen;
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315 SNIFF_TRACE1("ReadFromBuffer %d\n", theLen);
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316 if (theLen >= maxlen)
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317 {
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318 /* notify the user of buffer overflow? */
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319 theLen = maxlen-1;
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320 }
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321 memcpy(buf, bn->buf, theLen);
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322 buf[theLen] = '\0';
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323 if (! (sniffBufStart = bn->next))
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324 {
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325 sniffBufEnd = NULL;
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326 sniff_request_processed = 1;
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327 }
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328 free(bn);
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329 }
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330 if (! ReleaseMutex(hBufferMutex))
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331 {
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332 /* Deal with error. */
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333 }
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334 return theLen;
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335 }
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336
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337 /* Cannot get mutex ownership due to time-out or mutex object abandoned. */
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338 return -1;
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339 }
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340
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341 /* on Win32, a separate Thread reads the input pipe. get_request is not needed here. */
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342 static void __cdecl
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343 SniffEmacsReadThread(void *dummy)
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344 {
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345 static char ReadThreadBuffer[MAX_REQUEST_LEN];
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346 int ReadThreadLen=0;
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347 int result=0;
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348 int msgLen=0;
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349 char *msgStart, *msgCur;
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350
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351 SNIFF_TRACE("begin thread\n");
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352 /* Read from the pipe to SniffEmacs */
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353 while (sniff_connected)
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354 {
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355 if (!ReadFile(handle_from_sniff,
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356 ReadThreadBuffer + ReadThreadLen, /* acknowledge rest in buffer */
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357 MAX_REQUEST_LEN - ReadThreadLen,
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358 &result,
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359 NULL))
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360 {
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361 DWORD err = GetLastError();
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362 result = -1;
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363 }
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364
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365 if (result < 0)
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366 {
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367 /* probably sniffemacs died... log the Error? */
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368 sniff_disconnect(1);
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369 }
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370 else if (result > 0)
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371 {
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372 ReadThreadLen += result-1; /* total length of valid chars */
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373 for(msgCur=msgStart=ReadThreadBuffer; ReadThreadLen > 0; msgCur++, ReadThreadLen--)
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374 {
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375 if (*msgCur == '\0' || *msgCur == '\r' || *msgCur == '\n')
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376 {
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377 msgLen = msgCur-msgStart; /* don't add the CR/LF chars */
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378 if (msgLen > 0)
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379 writeToBuffer(msgStart, msgLen);
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380 msgStart = msgCur + 1; /* over-read single CR/LF chars */
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381 }
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382 }
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383
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384 /* move incomplete message to beginning of buffer */
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385 ReadThreadLen = msgCur - msgStart;
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386 if (ReadThreadLen > 0)
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387 mch_memmove(ReadThreadBuffer, msgStart, ReadThreadLen);
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388
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389 if (sniff_request_processed)
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390 {
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391 /* notify others that new data has arrived */
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392 sniff_request_processed = 0;
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393 sniff_request_waiting = 1;
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394 #ifdef FEAT_GUI_W32
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395 PostMessage(s_hwnd, WM_USER, (WPARAM)0, (LPARAM)0);
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396 #endif
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397 }
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398 }
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399 }
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400 SNIFF_TRACE("end thread\n");
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401 }
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402 #endif /* WIN32 */
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403 /*-------- End of Windows Only Declarations ------------------------*/
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404
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|
405
|
|
|
406 /* ProcessSniffRequests
|
|
|
407 * Function that should be called from outside
|
|
|
408 * to process the waiting sniff requests
|
|
|
409 */
|
|
|
410 void
|
|
|
411 ProcessSniffRequests()
|
|
|
412 {
|
|
|
413 static char buf[MAX_REQUEST_LEN];
|
|
|
414 int len;
|
|
|
415
|
|
|
416 while (sniff_connected)
|
|
|
417 {
|
|
|
418 #ifdef WIN32
|
|
|
419 len = ReadFromBuffer(buf, sizeof(buf));
|
|
|
420 #else
|
|
|
421 len = get_request(fd_from_sniff, buf, sizeof(buf));
|
|
|
422 #endif
|
|
|
423 if (len < 0)
|
|
|
424 {
|
|
|
425 vi_error_msg(_("E274: Sniff: Error during read. Disconnected"));
|
|
|
426 sniff_disconnect(1);
|
|
|
427 break;
|
|
|
428 }
|
|
|
429 else if (len > 0)
|
|
|
430 HandleSniffRequest( buf );
|
|
|
431 else
|
|
|
432 break;
|
|
|
433 }
|
|
|
434
|
|
|
435 if (sniff_will_disconnect) /* Now the last msg has been processed */
|
|
|
436 sniff_disconnect(1);
|
|
|
437 }
|
|
|
438
|
|
|
439 static struct sn_cmd *
|
|
|
440 find_sniff_cmd(cmd)
|
|
|
441 char *cmd;
|
|
|
442 {
|
|
|
443 struct sn_cmd *sniff_cmd = NULL;
|
|
|
444 int i;
|
|
|
445 for(i=0; sniff_cmds[i].cmd_name; i++)
|
|
|
446 {
|
|
|
447 if (!strcmp(cmd, sniff_cmds[i].cmd_name))
|
|
|
448 {
|
|
|
449 sniff_cmd = &sniff_cmds[i];
|
|
|
450 break;
|
|
|
451 }
|
|
|
452 }
|
|
|
453 if (!sniff_cmd)
|
|
|
454 {
|
|
|
455 struct sn_cmd_list *list = sniff_cmd_ext;
|
|
|
456 while(list)
|
|
|
457 {
|
|
|
458 if (!strcmp(cmd, list->sniff_cmd->cmd_name))
|
|
|
459 {
|
|
|
460 sniff_cmd = list->sniff_cmd;
|
|
|
461 break;
|
|
|
462 }
|
|
|
463 list = list->next_cmd;
|
|
|
464 }
|
|
|
465 }
|
|
|
466 return sniff_cmd;
|
|
|
467 }
|
|
|
468
|
|
|
469 static int
|
|
|
470 add_sniff_cmd(cmd, def, msg)
|
|
|
471 char *cmd;
|
|
|
472 char *def;
|
|
|
473 char *msg;
|
|
|
474 {
|
|
|
475 int rc = 0;
|
|
|
476 if (def != NULL && def[0] != NUL && find_sniff_cmd(cmd) == NULL)
|
|
|
477 {
|
|
|
478 struct sn_cmd_list *list = sniff_cmd_ext;
|
|
|
479 struct sn_cmd *sniff_cmd = (struct sn_cmd*)malloc(sizeof(struct sn_cmd));
|
|
|
480 struct sn_cmd_list *cmd_node = (struct sn_cmd_list*)malloc(sizeof(struct sn_cmd_list));
|
|
|
481 int rq_type = 0;
|
|
|
482
|
|
|
483 /* unescape message text */
|
|
|
484 char *p = msg;
|
|
|
485 char *end = p+strlen(msg);
|
|
|
486 while(*p)
|
|
|
487 {
|
|
|
488 if (*p == '\\')
|
|
|
489 mch_memmove(p,p+1,end-p);
|
|
|
490 p++;
|
|
|
491 }
|
|
|
492 SNIFF_TRACE1("request name = %s\n",cmd);
|
|
|
493 SNIFF_TRACE1("request def = %s\n",def);
|
|
|
494 SNIFF_TRACE1("request msg = %s\n",msg);
|
|
|
495
|
|
|
496 while(list && list->next_cmd)
|
|
|
497 list = list->next_cmd;
|
|
|
498 if (!list)
|
|
|
499 sniff_cmd_ext = cmd_node;
|
|
|
500 else
|
|
|
501 list->next_cmd = cmd_node;
|
|
|
502
|
|
|
503 sniff_cmd->cmd_name = cmd;
|
|
|
504 sniff_cmd->cmd_code = def[0];
|
|
|
505 sniff_cmd->cmd_msg = msg;
|
|
|
506 switch(def[1])
|
|
|
507 {
|
|
|
508 case 'f':
|
|
|
509 rq_type = RQ_NOSYMBOL;
|
|
|
510 break;
|
|
|
511 case 's':
|
|
|
512 rq_type = RQ_CONTEXT;
|
|
|
513 break;
|
|
|
514 case 'S':
|
|
|
515 rq_type = RQ_SCONTEXT;
|
|
|
516 break;
|
|
|
517 default:
|
|
|
518 rq_type = RQ_SIMPLE;
|
|
|
519 break;
|
|
|
520 }
|
|
|
521 sniff_cmd->cmd_type = rq_type;
|
|
|
522 cmd_node->sniff_cmd = sniff_cmd;
|
|
|
523 cmd_node->next_cmd = NULL;
|
|
|
524 rc = 1;
|
|
|
525 }
|
|
|
526 return rc;
|
|
|
527 }
|
|
|
528
|
|
|
529 /* ex_sniff
|
|
|
530 * Handle ":sniff" command
|
|
|
531 */
|
|
|
532 void
|
|
|
533 ex_sniff(eap)
|
|
|
534 exarg_T *eap;
|
|
|
535 {
|
|
|
536 char_u *arg = eap->arg;
|
|
|
537 char_u *symbol = NULL;
|
|
|
538 char_u *cmd = NULL;
|
|
|
539
|
|
|
540 SNIFF_TRACE_OPEN("if_sniff.log");
|
|
|
541 if (ends_excmd(*arg)) /* no request: print available commands */
|
|
|
542 {
|
|
|
543 int i;
|
|
|
544 msg_start();
|
|
|
545 msg_outtrans_attr((char_u *)"-- SNiFF+ commands --", hl_attr(HLF_T));
|
|
|
546 for(i=0; sniff_cmds[i].cmd_name; i++)
|
|
|
547 {
|
|
|
548 msg_putchar('\n');
|
|
|
549 msg_outtrans((char_u *)":sniff ");
|
|
|
550 msg_outtrans((char_u *)sniff_cmds[i].cmd_name);
|
|
|
551 }
|
|
|
552 msg_putchar('\n');
|
|
|
553 msg_outtrans((char_u *)_("SNiFF+ is currently "));
|
|
|
554 if (!sniff_connected)
|
|
|
555 msg_outtrans((char_u *)_("not "));
|
|
|
556 msg_outtrans((char_u *)_("connected"));
|
|
|
557 msg_end();
|
|
|
558 }
|
|
|
559 else /* extract command name and symbol if present */
|
|
|
560 {
|
|
|
561 symbol = skiptowhite(arg);
|
|
|
562 cmd = vim_strnsave(arg, (int)(symbol-arg));
|
|
|
563 symbol = skipwhite(symbol);
|
|
|
564 if (ends_excmd(*symbol))
|
|
|
565 symbol = NULL;
|
|
|
566 if (!strcmp((char *)cmd, "addcmd"))
|
|
|
567 {
|
|
|
568 char_u *def = skiptowhite(symbol);
|
|
|
569 char_u *name = vim_strnsave(symbol, (int)(def-symbol));
|
|
|
570 char_u *msg;
|
|
|
571 def = skipwhite(def);
|
|
|
572 msg = skiptowhite(def);
|
|
|
573 def = vim_strnsave(def, (int)(msg-def));
|
|
|
574 msg = skipwhite(msg);
|
|
|
575 if (ends_excmd(*msg))
|
|
|
576 msg = vim_strsave(name);
|
|
|
577 else
|
|
|
578 msg = vim_strnsave(msg, (int)(skiptowhite_esc(msg)-msg));
|
|
|
579 if (!add_sniff_cmd((char*)name, (char*)def, (char*)msg))
|
|
|
580 {
|
|
|
581 vim_free(msg);
|
|
|
582 vim_free(def);
|
|
|
583 vim_free(name);
|
|
|
584 }
|
|
|
585 }
|
|
|
586 else
|
|
|
587 {
|
|
|
588 struct sn_cmd* sniff_cmd = find_sniff_cmd((char*)cmd);
|
|
|
589 if (sniff_cmd)
|
|
|
590 SendRequest(sniff_cmd, (char *)symbol);
|
|
|
591 else
|
|
|
592 EMSG2(_("E275: Unknown SNiFF+ request: %s"), cmd);
|
|
|
593 }
|
|
|
594 vim_free(cmd);
|
|
|
595 }
|
|
|
596 }
|
|
|
597
|
|
|
598
|
|
|
599 static void
|
|
|
600 sniff_connect()
|
|
|
601 {
|
|
|
602 if (sniff_connected)
|
|
|
603 return;
|
|
|
604 if (ConnectToSniffEmacs())
|
|
|
605 vi_error_msg(_("E276: Error connecting to SNiFF+"));
|
|
|
606 else
|
|
|
607 {
|
|
|
608 int i;
|
|
|
609
|
|
|
610 for (i = 0; init_cmds[i]; i++)
|
|
|
611 vi_exec_cmd(init_cmds[i]);
|
|
|
612 }
|
|
|
613 }
|
|
|
614
|
|
|
615 void
|
|
|
616 sniff_disconnect(immediately)
|
|
|
617 int immediately;
|
|
|
618 {
|
|
|
619 if (!sniff_connected)
|
|
|
620 return;
|
|
|
621 if (immediately)
|
|
|
622 {
|
|
|
623 vi_exec_cmd("augroup sniff");
|
|
|
624 vi_exec_cmd("au!");
|
|
|
625 vi_exec_cmd("augroup END");
|
|
|
626 vi_exec_cmd("unlet g:sniff_connected");
|
|
|
627 sniff_connected = 0;
|
|
|
628 want_sniff_request = 0;
|
|
|
629 sniff_will_disconnect = 0;
|
|
|
630 #ifdef FEAT_GUI
|
|
|
631 if (gui.in_use)
|
|
|
632 gui_mch_wait_for_chars(0L);
|
|
|
633 #endif
|
|
|
634 #ifdef WIN32
|
|
|
635 while(sniffBufStart != NULL)
|
|
|
636 {
|
|
|
637 struct sniffBufNode *node = sniffBufStart;
|
|
|
638 sniffBufStart = sniffBufStart->next;
|
|
|
639 free(node);
|
|
|
640 }
|
|
|
641 sniffBufStart = sniffBufEnd = NULL;
|
|
|
642 sniff_request_processed = 1;
|
|
|
643 CloseHandle(handle_to_sniff);
|
|
|
644 CloseHandle(handle_from_sniff);
|
|
|
645 WaitForSingleObject(sniffemacs_handle, 1000L);
|
|
|
646 CloseHandle(sniffemacs_handle);
|
|
|
647 sniffemacs_handle = NULL;
|
|
|
648 WaitForSingleObject(readthread_handle, 1000L);
|
|
|
649 readthread_handle = NULL;
|
|
|
650 CloseHandle(hBufferMutex);
|
|
|
651 hBufferMutex = NULL;
|
|
|
652 SNIFF_TRACE_CLOSE;
|
|
|
653 #else
|
|
|
654 close(fd_to_sniff);
|
|
|
655 close(fd_from_sniff);
|
|
|
656 wait(NULL);
|
|
|
657 #endif
|
|
|
658 }
|
|
|
659 else
|
|
|
660 {
|
|
|
661 #ifdef WIN32
|
|
|
662 _sleep(2);
|
|
|
663 if (!sniff_request_processed)
|
|
|
664 ProcessSniffRequests();
|
|
|
665 #else
|
|
|
666 sleep(2); /* Incoming msg could disturb edit */
|
|
|
667 #endif
|
|
|
668 sniff_will_disconnect = 1; /* We expect disconnect msg in 2 secs */
|
|
|
669 }
|
|
|
670 }
|
|
|
671
|
|
|
672
|
|
|
673 /* ConnectToSniffEmacs
|
|
|
674 * Connect to Sniff: returns 1 on error
|
|
|
675 */
|
|
|
676 static int
|
|
|
677 ConnectToSniffEmacs()
|
|
|
678 {
|
|
|
679 #ifdef WIN32 /* Windows Version of the Code */
|
|
|
680 HANDLE ToSniffEmacs[2], FromSniffEmacs[2];
|
|
|
681 SECURITY_ATTRIBUTES sa;
|
|
|
682
|
|
|
683 sa.nLength = sizeof(sa);
|
|
|
684 sa.lpSecurityDescriptor = NULL;
|
|
|
685 sa.bInheritHandle = TRUE;
|
|
|
686
|
|
|
687 if (! CreatePipe(&ToSniffEmacs[0], &ToSniffEmacs[1], &sa, 0))
|
|
|
688 return 1;
|
|
|
689 if (! CreatePipe(&FromSniffEmacs[0], &FromSniffEmacs[1], &sa, 0))
|
|
|
690 return 1;
|
|
|
691
|
|
|
692 sniffemacs_handle = ExecuteDetachedProgram(SniffEmacs[0], SniffEmacs[0],
|
|
|
693 ToSniffEmacs[0], FromSniffEmacs[1]);
|
|
|
694
|
|
|
695 if (sniffemacs_handle)
|
|
|
696 {
|
|
|
697 handle_to_sniff = ToSniffEmacs[1];
|
|
|
698 handle_from_sniff = FromSniffEmacs[0];
|
|
|
699 sniff_connected = 1;
|
|
|
700 hBufferMutex = CreateMutex(
|
|
|
701 NULL, /* no security attributes */
|
|
|
702 FALSE, /* initially not owned */
|
|
|
703 "SniffReadBufferMutex"); /* name of mutex */
|
|
|
704 if (hBufferMutex == NULL)
|
|
|
705 {
|
|
|
706 /* Check for error. */
|
|
|
707 }
|
|
|
708 readthread_handle = (HANDLE)_beginthread(SniffEmacsReadThread, 0, NULL);
|
|
|
709 return 0;
|
|
|
710 }
|
|
|
711 else
|
|
|
712 {
|
|
|
713 /* error in spawn() */
|
|
|
714 return 1;
|
|
|
715 }
|
|
|
716
|
|
|
717 #else /* UNIX Version of the Code */
|
|
|
718 int ToSniffEmacs[2], FromSniffEmacs[2];
|
|
|
719
|
|
|
720 pipe(ToSniffEmacs);
|
|
|
721 pipe(FromSniffEmacs);
|
|
|
722
|
|
|
723 /* fork */
|
|
|
724 if ((sniffemacs_pid=fork()) == 0)
|
|
|
725 {
|
|
|
726 /* child */
|
|
|
727
|
|
|
728 /* prepare communication pipes */
|
|
|
729 close(ToSniffEmacs[1]);
|
|
|
730 close(FromSniffEmacs[0]);
|
|
|
731
|
|
|
732 dup2(ToSniffEmacs[0],fileno(stdin)); /* write to ToSniffEmacs[1] */
|
|
|
733 dup2(FromSniffEmacs[1],fileno(stdout));/* read from FromSniffEmacs[0] */
|
|
|
734
|
|
|
735 close(ToSniffEmacs[0]);
|
|
|
736 close(FromSniffEmacs[1]);
|
|
|
737
|
|
|
738 /* start sniffemacs */
|
|
|
739 execvp (SniffEmacs[0], SniffEmacs);
|
|
|
740 {
|
|
|
741 /* FILE *out = fdopen(FromSniffEmacs[1], "w"); */
|
|
|
742 sleep(1);
|
|
|
743 fputs(_(msg_sniff_disconnect), stdout);
|
|
|
744 fflush(stdout);
|
|
|
745 sleep(3);
|
|
|
746 #ifdef FEAT_GUI
|
|
|
747 if (gui.in_use)
|
|
|
748 gui_exit(1);
|
|
|
749 #endif
|
|
|
750 exit(1);
|
|
|
751 }
|
|
|
752 return 1;
|
|
|
753 }
|
|
|
754 else if (sniffemacs_pid > 0)
|
|
|
755 {
|
|
|
756 /* parent process */
|
|
|
757 close(ToSniffEmacs[0]);
|
|
|
758 fd_to_sniff = ToSniffEmacs[1];
|
|
|
759 close(FromSniffEmacs[1]);
|
|
|
760 fd_from_sniff = FromSniffEmacs[0];
|
|
|
761 sniff_connected = 1;
|
|
|
762 return 0;
|
|
|
763 }
|
|
|
764 else /* error in fork() */
|
|
|
765 return 1;
|
|
|
766 #endif /* UNIX Version of the Code */
|
|
|
767 }
|
|
|
768
|
|
|
769
|
|
|
770 /* HandleSniffRequest
|
|
|
771 * Handle one request from SNiFF+
|
|
|
772 */
|
|
|
773 static void
|
|
|
774 HandleSniffRequest(buffer)
|
|
|
775 char *buffer;
|
|
|
776 {
|
|
|
777 char VICommand[MAX_REQUEST_LEN];
|
|
|
778 char command;
|
|
|
779 char *arguments;
|
|
|
780 char *token;
|
|
|
781 char *argv[3];
|
|
|
782 int argc = 0;
|
|
|
783 buf_T *buf;
|
|
|
784
|
|
|
785 const char *SetTab = "set tabstop=%d";
|
|
|
786 const char *SelectBuf = "buf %s";
|
|
|
787 const char *DeleteBuf = "bd %s";
|
|
|
788 const char *UnloadBuf = "bun %s";
|
|
|
789 const char *GotoLine = "%d";
|
|
|
790
|
|
|
791 command = buffer[0];
|
|
|
792 arguments = &buffer[1];
|
|
|
793 token = strtok(arguments, sniff_rq_sep);
|
|
|
794 while(argc <3)
|
|
|
795 {
|
|
|
796 if (token)
|
|
|
797 {
|
|
|
798 argv[argc] = (char*)vim_strsave((char_u *)token);
|
|
|
799 token = strtok(0, sniff_rq_sep);
|
|
|
800 }
|
|
|
801 else
|
|
|
802 argv[argc] = strdup("");
|
|
|
803 argc++;
|
|
|
804 }
|
|
|
805
|
|
|
806 switch (command)
|
|
|
807 {
|
|
|
808 case 'o' : /* visit file at char pos */
|
|
|
809 case 'O' : /* visit file at line number */
|
|
|
810 {
|
|
|
811 char *file = argv[0];
|
|
|
812 int position = atoi(argv[1]);
|
|
|
813
|
|
|
814 buf = vi_find_buffer(file);
|
|
|
815 setpcmark(); /* insert current pos in jump list [mark.c]*/
|
|
|
816 if (!buf)
|
|
|
817 vi_open_file(file);
|
|
|
818 else if (buf!=curbuf)
|
|
|
819 {
|
|
|
820 sprintf(VICommand, SelectBuf, file);
|
|
|
821 vi_exec_cmd(VICommand);
|
|
|
822 }
|
|
|
823 if (command == 'o')
|
|
|
824 vi_set_cursor_pos((long)position);
|
|
|
825 else
|
|
|
826 {
|
|
|
827 sprintf(VICommand, GotoLine, (int)position);
|
|
|
828 vi_exec_cmd(VICommand);
|
|
|
829 }
|
|
|
830 checkpcmark(); /* [mark.c] */
|
|
|
831 #if defined(FEAT_GUI_X11) || defined(FEAT_GUI_W32)
|
|
|
832 if (gui.in_use && !gui.in_focus) /* Raise Vim Window */
|
|
|
833 {
|
|
|
834 # ifdef FEAT_GUI_W32
|
|
|
835 SetForegroundWindow(s_hwnd);
|
|
|
836 # else
|
|
|
837 extern Widget vimShell;
|
|
|
838
|
|
|
839 XSetInputFocus(gui.dpy, XtWindow(vimShell), RevertToNone,
|
|
|
840 CurrentTime);
|
|
|
841 XRaiseWindow(gui.dpy, XtWindow(vimShell));
|
|
|
842 # endif
|
|
|
843 }
|
|
|
844 #endif
|
|
|
845 break;
|
|
|
846 }
|
|
|
847 case 'p' : /* path of file has changed */
|
|
|
848 /* when changing from shared to private WS (checkout) */
|
|
|
849 {
|
|
|
850 char *file = argv[0];
|
|
|
851 char *new_path = argv[1];
|
|
|
852
|
|
|
853 buf = vi_find_buffer(file);
|
|
|
854 if (buf && !buf->b_changed) /* delete buffer only if not modified */
|
|
|
855 {
|
|
|
856 sprintf(VICommand, DeleteBuf, file);
|
|
|
857 vi_exec_cmd(VICommand);
|
|
|
858 }
|
|
|
859 vi_open_file(new_path);
|
|
|
860 break;
|
|
|
861 }
|
|
|
862 case 'w' : /* writability has changed */
|
|
|
863 /* Sniff sends request twice,
|
|
|
864 * but only the last one is the right one */
|
|
|
865 {
|
|
|
866 char *file = argv[0];
|
|
|
867 int writable = atoi(argv[1]);
|
|
|
868
|
|
|
869 buf = vi_find_buffer(file);
|
|
|
870 if (buf)
|
|
|
871 {
|
|
|
872 buf->b_p_ro = !writable;
|
|
|
873 if (buf != curbuf)
|
|
|
874 {
|
|
|
875 buf->b_flags |= BF_CHECK_RO + BF_NEVERLOADED;
|
|
|
876 if (writable && !buf->b_changed)
|
|
|
877 {
|
|
|
878 sprintf(VICommand, UnloadBuf, file);
|
|
|
879 vi_exec_cmd(VICommand);
|
|
|
880 }
|
|
|
881 }
|
|
|
882 else if (writable && !buf->b_changed)
|
|
|
883 {
|
|
|
884 vi_exec_cmd("e");
|
|
|
885 }
|
|
|
886 }
|
|
|
887 break;
|
|
|
888 }
|
|
|
889 case 'h' : /* highlight info */
|
|
|
890 break; /* not implemented */
|
|
|
891
|
|
|
892 case 't' : /* Set tab width */
|
|
|
893 {
|
|
|
894 int tab_width = atoi(argv[1]);
|
|
|
895
|
|
|
896 if (tab_width > 0 && tab_width <= 16)
|
|
|
897 {
|
|
|
898 sprintf(VICommand, SetTab, tab_width);
|
|
|
899 vi_exec_cmd(VICommand);
|
|
|
900 }
|
|
|
901 break;
|
|
|
902 }
|
|
|
903 case '|':
|
|
|
904 {
|
|
|
905 /* change the request separator */
|
|
|
906 sniff_rq_sep[0] = arguments[0];
|
|
|
907 /* echo the request */
|
|
|
908 WriteToSniff(buffer);
|
|
|
909 break;
|
|
|
910 }
|
|
|
911 case 'A' : /* Warning/Info msg */
|
|
|
912 vi_msg(arguments);
|
|
|
913 if (!strncmp(arguments, "Disconnected", 12)) /* "Disconnected ..." */
|
|
|
914 sniff_disconnect(1); /* unexpected disconnection */
|
|
|
915 break;
|
|
|
916 case 'a' : /* Error msg */
|
|
|
917 vi_error_msg(arguments);
|
|
|
918 if (!strncmp(arguments, "Cannot connect", 14)) /* "Cannot connect ..." */
|
|
|
919 sniff_disconnect(1);
|
|
|
920 break;
|
|
|
921
|
|
|
922 default :
|
|
|
923 break;
|
|
|
924 }
|
|
|
925 while(argc)
|
|
|
926 vim_free(argv[--argc]);
|
|
|
927 }
|
|
|
928
|
|
|
929
|
|
|
930 #ifndef WIN32
|
|
|
931 /* get_request
|
|
|
932 * read string from fd up to next newline (excluding the nl),
|
|
|
933 * returns length of string
|
|
|
934 * 0 if no data available or no complete line
|
|
|
935 * <0 on error
|
|
|
936 */
|
|
|
937 static int
|
|
|
938 get_request(fd, buf, maxlen)
|
|
|
939 int fd;
|
|
|
940 char *buf;
|
|
|
941 int maxlen;
|
|
|
942 {
|
|
|
943 static char inbuf[1024];
|
|
|
944 static int pos = 0, bytes = 0;
|
|
|
945 int len;
|
|
|
946 #ifdef HAVE_SELECT
|
|
|
947 struct timeval tval;
|
|
|
948 fd_set rfds;
|
|
|
949
|
|
|
950 FD_ZERO(&rfds);
|
|
|
951 FD_SET(fd, &rfds);
|
|
|
952 tval.tv_sec = 0;
|
|
|
953 tval.tv_usec = 0;
|
|
|
954 #else
|
|
|
955 struct pollfd fds;
|
|
|
956
|
|
|
957 fds.fd = fd;
|
|
|
958 fds.events = POLLIN;
|
|
|
959 #endif
|
|
|
960
|
|
|
961 for (len = 0; len < maxlen; len++)
|
|
|
962 {
|
|
|
963 if (pos >= bytes) /* end of buffer reached? */
|
|
|
964 {
|
|
|
965 #ifdef HAVE_SELECT
|
|
|
966 if (select(fd + 1, &rfds, NULL, NULL, &tval) > 0)
|
|
|
967 #else
|
|
|
968 if (poll(&fds, 1, 0) > 0)
|
|
|
969 #endif
|
|
|
970 {
|
|
|
971 pos = 0;
|
|
|
972 bytes = read(fd, inbuf, sizeof(inbuf));
|
|
|
973 if (bytes <= 0)
|
|
|
974 return bytes;
|
|
|
975 }
|
|
|
976 else
|
|
|
977 {
|
|
|
978 pos = pos-len;
|
|
|
979 buf[0] = '\0';
|
|
|
980 return 0;
|
|
|
981 }
|
|
|
982 }
|
|
|
983 if ((buf[len] = inbuf[pos++]) =='\n')
|
|
|
984 break;
|
|
|
985 }
|
|
|
986 buf[len] = '\0';
|
|
|
987 return len;
|
|
|
988 }
|
|
|
989 #endif /* WIN32 */
|
|
|
990
|
|
|
991
|
|
|
992 static void
|
|
|
993 SendRequest(command, symbol)
|
|
|
994 struct sn_cmd *command;
|
|
|
995 char *symbol;
|
|
|
996 {
|
|
|
997 int cmd_type = command->cmd_type;
|
|
|
998 static char cmdstr[MAX_REQUEST_LEN];
|
|
|
999 static char msgtxt[MAX_REQUEST_LEN];
|
|
|
1000 char *buffer_name = NULL;
|
|
|
1001
|
|
|
1002 if (cmd_type == RQ_CONNECT)
|
|
|
1003 {
|
|
|
1004 sniff_connect();
|
|
|
1005 return;
|
|
|
1006 }
|
|
|
1007 if (!sniff_connected && !(cmd_type & SILENT))
|
|
|
1008 {
|
|
|
1009 vi_error_msg(_("E278: SNiFF+ not connected"));
|
|
|
1010 return;
|
|
|
1011 }
|
|
|
1012
|
|
|
1013 if (cmd_type & NEED_FILE)
|
|
|
1014 {
|
|
|
1015 if (!curbuf->b_sniff)
|
|
|
1016 {
|
|
|
1017 if (!(cmd_type & SILENT))
|
|
|
1018 vi_error_msg(_("E279: Not a SNiFF+ buffer"));
|
|
|
1019 return;
|
|
|
1020 }
|
|
|
1021 buffer_name = vi_buffer_name();
|
|
|
1022 if (buffer_name == NULL)
|
|
|
1023 return;
|
|
|
1024 if (cmd_type & NEED_SYMBOL)
|
|
|
1025 {
|
|
|
1026 if (cmd_type & EMPTY_SYMBOL)
|
|
|
1027 symbol = " ";
|
|
|
1028 else if (!symbol && !(symbol = vi_symbol_under_cursor()))
|
|
|
1029 return; /* error msg already displayed */
|
|
|
1030 }
|
|
|
1031
|
|
|
1032 if (symbol)
|
|
|
1033 sprintf(cmdstr, "%c%s%s%ld%s%s\n",
|
|
|
1034 command->cmd_code,
|
|
|
1035 buffer_name,
|
|
|
1036 sniff_rq_sep,
|
|
|
1037 vi_cursor_pos(),
|
|
|
1038 sniff_rq_sep,
|
|
|
1039 symbol
|
|
|
1040 );
|
|
|
1041 else
|
|
|
1042 sprintf(cmdstr, "%c%s\n", command->cmd_code, buffer_name);
|
|
|
1043 }
|
|
|
1044 else /* simple request */
|
|
|
1045 {
|
|
|
1046 cmdstr[0] = command->cmd_code;
|
|
|
1047 cmdstr[1] = '\n';
|
|
|
1048 cmdstr[2] = '\0';
|
|
|
1049 }
|
|
|
1050 if (command->cmd_msg && !(cmd_type & SILENT))
|
|
|
1051 {
|
|
|
1052 if ((cmd_type & NEED_SYMBOL) && !(cmd_type & EMPTY_SYMBOL))
|
|
|
1053 {
|
|
|
1054 sprintf(msgtxt, "%s: %s", _(command->cmd_msg), symbol);
|
|
|
1055 vi_msg(msgtxt);
|
|
|
1056 }
|
|
|
1057 else
|
|
|
1058 vi_msg(_(command->cmd_msg));
|
|
|
1059 }
|
|
|
1060 WriteToSniff(cmdstr);
|
|
|
1061 if (cmd_type & DISCONNECT)
|
|
|
1062 sniff_disconnect(0);
|
|
|
1063 }
|
|
|
1064
|
|
|
1065
|
|
|
1066
|
|
|
1067 static void
|
|
|
1068 WriteToSniff(str)
|
|
|
1069 char *str;
|
|
|
1070 {
|
|
|
1071 int bytes;
|
|
|
1072 #ifdef WIN32
|
|
|
1073 if (! WriteFile(handle_to_sniff, str, strlen(str), &bytes, NULL))
|
|
|
1074 {
|
|
|
1075 DWORD err=GetLastError();
|
|
|
1076 bytes = -1;
|
|
|
1077 }
|
|
|
1078 #else
|
|
|
1079 bytes = write(fd_to_sniff, str, strlen(str));
|
|
|
1080 #endif
|
|
|
1081 if (bytes<0)
|
|
|
1082 {
|
|
|
1083 vi_msg(_("Sniff: Error during write. Disconnected"));
|
|
|
1084 sniff_disconnect(1);
|
|
|
1085 }
|
|
|
1086 }
|
|
|
1087
|
|
|
1088 /*-------- vim helping functions --------------------------------*/
|
|
|
1089
|
|
|
1090 static void
|
|
|
1091 vi_msg(str)
|
|
|
1092 char *str;
|
|
|
1093 {
|
|
|
1094 if (str != NULL && *str != NUL)
|
|
|
1095 MSG((char_u *)str);
|
|
|
1096 }
|
|
|
1097
|
|
|
1098 static void
|
|
|
1099 vi_error_msg(str)
|
|
|
1100 char *str;
|
|
|
1101 {
|
|
|
1102 if (str != NULL && *str != NUL)
|
|
|
1103 EMSG((char_u *)str);
|
|
|
1104 }
|
|
|
1105
|
|
|
1106 static void
|
|
|
1107 vi_open_file(fname)
|
|
|
1108 char *fname;
|
|
|
1109 {
|
|
|
1110 ++no_wait_return;
|
|
|
1111 do_ecmd(0, (char_u *)fname, NULL, NULL, ECMD_ONE, ECMD_HIDE+ECMD_OLDBUF);
|
|
|
1112 curbuf->b_sniff = TRUE;
|
|
|
1113 --no_wait_return; /* [ex_docmd.c] */
|
|
|
1114 }
|
|
|
1115
|
|
|
1116 static buf_T *
|
|
|
1117 vi_find_buffer(fname)
|
|
|
1118 char *fname;
|
|
|
1119 { /* derived from buflist_findname() [buffer.c] */
|
|
|
1120 buf_T *buf;
|
|
|
1121
|
|
|
1122 for (buf = firstbuf; buf != NULL; buf = buf->b_next)
|
|
|
1123 if (buf->b_sfname != NULL && fnamecmp(fname, buf->b_sfname) == 0)
|
|
|
1124 return (buf);
|
|
|
1125 return NULL;
|
|
|
1126 }
|
|
|
1127
|
|
|
1128
|
|
|
1129 static char *
|
|
|
1130 vi_symbol_under_cursor()
|
|
|
1131 {
|
|
|
1132 int len;
|
|
|
1133 char *symbolp;
|
|
|
1134 char *p;
|
|
|
1135 static char sniff_symbol[256];
|
|
|
1136
|
|
|
1137 len = find_ident_under_cursor((char_u **)&symbolp, FIND_IDENT);
|
|
|
1138 /* [normal.c] */
|
|
|
1139 if (len <= 0)
|
|
|
1140 return NULL;
|
|
|
1141 for (p=sniff_symbol; len; len--)
|
|
|
1142 *p++ = *symbolp++;
|
|
|
1143 *p = '\0';
|
|
|
1144 return sniff_symbol;
|
|
|
1145 }
|
|
|
1146
|
|
|
1147
|
|
|
1148 static char *
|
|
|
1149 vi_buffer_name()
|
|
|
1150 {
|
|
|
1151 return (char *)curbuf->b_sfname;
|
|
|
1152 }
|
|
|
1153
|
|
|
1154 static void
|
|
|
1155 vi_exec_cmd(vicmd)
|
|
|
1156 char *vicmd;
|
|
|
1157 {
|
|
|
1158 do_cmdline_cmd((char_u *)vicmd); /* [ex_docmd.c] */
|
|
|
1159 }
|
|
|
1160
|
|
|
1161 /*
|
|
|
1162 * Set cursor on character position
|
|
|
1163 * derived from cursor_pos_info() [buffer.c]
|
|
|
1164 */
|
|
|
1165 static void
|
|
|
1166 vi_set_cursor_pos(char_pos)
|
|
|
1167 long char_pos;
|
|
|
1168 {
|
|
|
1169 linenr_T lnum;
|
|
|
1170 long char_count = 1; /* first position = 1 */
|
|
|
1171 int line_size;
|
|
|
1172 int eol_size;
|
|
|
1173
|
|
|
1174 if (char_pos == 0)
|
|
|
1175 {
|
|
|
1176 char_pos = 1;
|
|
|
1177 }
|
|
|
1178 if (get_fileformat(curbuf) == EOL_DOS)
|
|
|
1179 eol_size = 2;
|
|
|
1180 else
|
|
|
1181 eol_size = 1;
|
|
|
1182 for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum)
|
|
|
1183 {
|
|
|
1184 line_size = STRLEN(ml_get(lnum)) + eol_size;
|
|
|
1185 if (char_count+line_size > char_pos) break;
|
|
|
1186 char_count += line_size;
|
|
|
1187 }
|
|
|
1188 curwin->w_cursor.lnum = lnum;
|
|
|
1189 curwin->w_cursor.col = char_pos - char_count;
|
|
|
1190 }
|
|
|
1191
|
|
|
1192 static long
|
|
|
1193 vi_cursor_pos()
|
|
|
1194 {
|
|
|
1195 linenr_T lnum;
|
|
|
1196 long char_count=1; /* sniff starts with pos 1 */
|
|
|
1197 int line_size;
|
|
|
1198 int eol_size;
|
|
|
1199
|
|
|
1200 if (curbuf->b_p_tx)
|
|
|
1201 eol_size = 2;
|
|
|
1202 else
|
|
|
1203 eol_size = 1;
|
|
|
1204 for (lnum = 1; lnum < curwin->w_cursor.lnum; ++lnum)
|
|
|
1205 {
|
|
|
1206 line_size = STRLEN(ml_get(lnum)) + eol_size;
|
|
|
1207 char_count += line_size;
|
|
|
1208 }
|
|
|
1209 return char_count + curwin->w_cursor.col;
|
|
|
1210 }
|
