/[dtapublic]/projs/trunk/shared_source/c_tcl_base_7_5_w_mods/tclappinit.c
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Revision 67 - (show annotations) (download)
Mon Oct 31 00:57:34 2016 UTC (6 years, 2 months ago) by dashley
File MIME type: text/plain
File size: 8123 byte(s)
Header and footer cleanup.
1 /* $Header$ */
2 /*
3 * tclAppInit.c --
4 *
5 * Provides a default version of the main program and Tcl_AppInit
6 * procedure for Tcl applications (without Tk). Note that this
7 * program must be built in Win32 console mode to work properly.
8 *
9 * Copyright (c) 1996-1997 by Sun Microsystems, Inc.
10 * Copyright (c) 1998-1999 by Scriptics Corporation.
11 *
12 * See the file "license.terms" for information on usage and redistribution
13 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
14 *
15 * RCS: @(#) $Id: tclappinit.c,v 1.2 2002/01/27 12:01:32 dtashley Exp $
16 */
17
18
19 #include "tcl.h"
20 #include <windows.h>
21 #include <locale.h>
22
23 #ifdef TCL_TEST
24 extern int Procbodytest_Init _ANSI_ARGS_((Tcl_Interp *interp));
25 extern int Procbodytest_SafeInit _ANSI_ARGS_((Tcl_Interp *interp));
26 extern int Tcltest_Init _ANSI_ARGS_((Tcl_Interp *interp));
27 extern int TclObjTest_Init _ANSI_ARGS_((Tcl_Interp *interp));
28 #ifdef TCL_THREADS
29 extern int TclThread_Init _ANSI_ARGS_((Tcl_Interp *interp));
30 #endif
31 #endif /* TCL_TEST */
32
33 static void setargv _ANSI_ARGS_((int *argcPtr, char ***argvPtr));
34
35
36 /*
37 *----------------------------------------------------------------------
38 *
39 * main --
40 *
41 * This is the main program for the application.
42 *
43 * Results:
44 * None: Tcl_Main never returns here, so this procedure never
45 * returns either.
46 *
47 * Side effects:
48 * Whatever the application does.
49 *
50 *----------------------------------------------------------------------
51 */
52
53 int
54 TclBaseMain(argc, argv)
55 int argc; /* Number of command-line arguments. */
56 char **argv; /* Values of command-line arguments. */
57 {
58 /*
59 * The following #if block allows you to change the AppInit
60 * function by using a #define of TCL_LOCAL_APPINIT instead
61 * of rewriting this entire file. The #if checks for that
62 * #define and uses Tcl_AppInit if it doesn't exist.
63 */
64
65 #ifndef TCL_LOCAL_APPINIT
66 #define TCL_LOCAL_APPINIT Tcl_AppInit
67 #endif
68 extern int TCL_LOCAL_APPINIT _ANSI_ARGS_((Tcl_Interp *interp));
69
70 /*
71 * The following #if block allows you to change how Tcl finds the startup
72 * script, prime the library or encoding paths, fiddle with the argv,
73 * etc., without needing to rewrite Tcl_Main()
74 */
75
76 #ifdef TCL_LOCAL_MAIN_HOOK
77 extern int TCL_LOCAL_MAIN_HOOK _ANSI_ARGS_((int *argc, char ***argv));
78 #endif
79
80 char buffer[MAX_PATH +1];
81 char *p;
82 /*
83 * Set up the default locale to be standard "C" locale so parsing
84 * is performed correctly.
85 */
86
87 setlocale(LC_ALL, "C");
88 setargv(&argc, &argv);
89
90 /*
91 * Replace argv[0] with full pathname of executable, and forward
92 * slashes substituted for backslashes.
93 */
94
95 GetModuleFileName(NULL, buffer, sizeof(buffer));
96 argv[0] = buffer;
97 for (p = buffer; *p != '\0'; p++) {
98 if (*p == '\\') {
99 *p = '/';
100 }
101 }
102
103 #ifdef TCL_LOCAL_MAIN_HOOK
104 TCL_LOCAL_MAIN_HOOK(&argc, &argv);
105 #endif
106
107 Tcl_Main(argc, argv, TCL_LOCAL_APPINIT);
108
109 return 0; /* Needed only to prevent compiler warning. */
110 }
111
112
113 /*
114 *----------------------------------------------------------------------
115 *
116 * Tcl_AppInit --
117 *
118 * This procedure performs application-specific initialization.
119 * Most applications, especially those that incorporate additional
120 * packages, will have their own version of this procedure.
121 *
122 * Results:
123 * Returns a standard Tcl completion code, and leaves an error
124 * message in the interp's result if an error occurs.
125 *
126 * Side effects:
127 * Depends on the startup script.
128 *
129 *----------------------------------------------------------------------
130 */
131
132 int
133 Tcl_AppInit(interp)
134 Tcl_Interp *interp; /* Interpreter for application. */
135 {
136 if (Tcl_Init(interp) == TCL_ERROR) {
137 return TCL_ERROR;
138 }
139
140 #ifdef TCL_TEST
141 if (Tcltest_Init(interp) == TCL_ERROR) {
142 return TCL_ERROR;
143 }
144 Tcl_StaticPackage(interp, "Tcltest", Tcltest_Init,
145 (Tcl_PackageInitProc *) NULL);
146 if (TclObjTest_Init(interp) == TCL_ERROR) {
147 return TCL_ERROR;
148 }
149 #ifdef TCL_THREADS
150 if (TclThread_Init(interp) == TCL_ERROR) {
151 return TCL_ERROR;
152 }
153 #endif
154 if (Procbodytest_Init(interp) == TCL_ERROR) {
155 return TCL_ERROR;
156 }
157 Tcl_StaticPackage(interp, "procbodytest", Procbodytest_Init,
158 Procbodytest_SafeInit);
159 #endif /* TCL_TEST */
160
161 /*
162 * Call the init procedures for included packages. Each call should
163 * look like this:
164 *
165 * if (Mod_Init(interp) == TCL_ERROR) {
166 * return TCL_ERROR;
167 * }
168 *
169 * where "Mod" is the name of the module.
170 */
171
172 /*
173 * Call Tcl_CreateCommand for application-specific commands, if
174 * they weren't already created by the init procedures called above.
175 */
176
177 /*
178 * Specify a user-specific startup file to invoke if the application
179 * is run interactively. Typically the startup file is "~/.apprc"
180 * where "app" is the name of the application. If this line is deleted
181 * then no user-specific startup file will be run under any conditions.
182 */
183
184 Tcl_SetVar(interp, "tcl_rcFileName", "~/tclshrc.tcl", TCL_GLOBAL_ONLY);
185 return TCL_OK;
186 }
187
188 /*
189 *-------------------------------------------------------------------------
190 *
191 * setargv --
192 *
193 * Parse the Windows command line string into argc/argv. Done here
194 * because we don't trust the builtin argument parser in crt0.
195 * Windows applications are responsible for breaking their command
196 * line into arguments.
197 *
198 * 2N backslashes + quote -> N backslashes + begin quoted string
199 * 2N + 1 backslashes + quote -> literal
200 * N backslashes + non-quote -> literal
201 * quote + quote in a quoted string -> single quote
202 * quote + quote not in quoted string -> empty string
203 * quote -> begin quoted string
204 *
205 * Results:
206 * Fills argcPtr with the number of arguments and argvPtr with the
207 * array of arguments.
208 *
209 * Side effects:
210 * Memory allocated.
211 *
212 *--------------------------------------------------------------------------
213 */
214
215 static void
216 setargv(argcPtr, argvPtr)
217 int *argcPtr; /* Filled with number of argument strings. */
218 char ***argvPtr; /* Filled with argument strings (malloc'd). */
219 {
220 char *cmdLine, *p, *arg, *argSpace;
221 char **argv;
222 int argc, size, inquote, copy, slashes;
223
224 cmdLine = GetCommandLine(); /* INTL: BUG */
225
226 /*
227 * Precompute an overly pessimistic guess at the number of arguments
228 * in the command line by counting non-space spans.
229 */
230
231 size = 2;
232 for (p = cmdLine; *p != '\0'; p++) {
233 if ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */
234 size++;
235 while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */
236 p++;
237 }
238 if (*p == '\0') {
239 break;
240 }
241 }
242 }
243 argSpace = (char *) Tcl_Alloc(
244 (unsigned) (size * sizeof(char *) + strlen(cmdLine) + 1));
245 argv = (char **) argSpace;
246 argSpace += size * sizeof(char *);
247 size--;
248
249 p = cmdLine;
250 for (argc = 0; argc < size; argc++) {
251 argv[argc] = arg = argSpace;
252 while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */
253 p++;
254 }
255 if (*p == '\0') {
256 break;
257 }
258
259 inquote = 0;
260 slashes = 0;
261 while (1) {
262 copy = 1;
263 while (*p == '\\') {
264 slashes++;
265 p++;
266 }
267 if (*p == '"') {
268 if ((slashes & 1) == 0) {
269 copy = 0;
270 if ((inquote) && (p[1] == '"')) {
271 p++;
272 copy = 1;
273 } else {
274 inquote = !inquote;
275 }
276 }
277 slashes >>= 1;
278 }
279
280 while (slashes) {
281 *arg = '\\';
282 arg++;
283 slashes--;
284 }
285
286 if ((*p == '\0')
287 || (!inquote && ((*p == ' ') || (*p == '\t')))) { /* INTL: ISO space. */
288 break;
289 }
290 if (copy != 0) {
291 *arg = *p;
292 arg++;
293 }
294 p++;
295 }
296 *arg = '\0';
297 argSpace = arg + 1;
298 }
299 argv[argc] = NULL;
300
301 *argcPtr = argc;
302 *argvPtr = argv;
303 }
304
305 /* End of tclappinit.c */
306

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