/[dtapublic]/projs/trunk/shared_source/c_tcl_base_7_5_w_mods/tclappinit.c
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Revision 42 - (show annotations) (download)
Fri Oct 14 01:50:00 2016 UTC (7 years, 1 month ago) by dashley
Original Path: projs/trunk/shared_source/tcl_base/tclappinit.c
File MIME type: text/plain
File size: 8452 byte(s)
Move shared source code to commonize.
1 /* $Header: /cvsroot/esrg/sfesrg/esrgpcpj/shared/tcl_base/tclappinit.c,v 1.2 2002/01/27 12:01:32 dtashley Exp $ */
2
3 /*
4 * tclAppInit.c --
5 *
6 * Provides a default version of the main program and Tcl_AppInit
7 * procedure for Tcl applications (without Tk). Note that this
8 * program must be built in Win32 console mode to work properly.
9 *
10 * Copyright (c) 1996-1997 by Sun Microsystems, Inc.
11 * Copyright (c) 1998-1999 by Scriptics Corporation.
12 *
13 * See the file "license.terms" for information on usage and redistribution
14 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
15 *
16 * RCS: @(#) $Id: tclappinit.c,v 1.2 2002/01/27 12:01:32 dtashley Exp $
17 */
18
19
20 #include "tcl.h"
21 #include <windows.h>
22 #include <locale.h>
23
24 #ifdef TCL_TEST
25 extern int Procbodytest_Init _ANSI_ARGS_((Tcl_Interp *interp));
26 extern int Procbodytest_SafeInit _ANSI_ARGS_((Tcl_Interp *interp));
27 extern int Tcltest_Init _ANSI_ARGS_((Tcl_Interp *interp));
28 extern int TclObjTest_Init _ANSI_ARGS_((Tcl_Interp *interp));
29 #ifdef TCL_THREADS
30 extern int TclThread_Init _ANSI_ARGS_((Tcl_Interp *interp));
31 #endif
32 #endif /* TCL_TEST */
33
34 static void setargv _ANSI_ARGS_((int *argcPtr, char ***argvPtr));
35
36
37 /*
38 *----------------------------------------------------------------------
39 *
40 * main --
41 *
42 * This is the main program for the application.
43 *
44 * Results:
45 * None: Tcl_Main never returns here, so this procedure never
46 * returns either.
47 *
48 * Side effects:
49 * Whatever the application does.
50 *
51 *----------------------------------------------------------------------
52 */
53
54 int
55 TclBaseMain(argc, argv)
56 int argc; /* Number of command-line arguments. */
57 char **argv; /* Values of command-line arguments. */
58 {
59 /*
60 * The following #if block allows you to change the AppInit
61 * function by using a #define of TCL_LOCAL_APPINIT instead
62 * of rewriting this entire file. The #if checks for that
63 * #define and uses Tcl_AppInit if it doesn't exist.
64 */
65
66 #ifndef TCL_LOCAL_APPINIT
67 #define TCL_LOCAL_APPINIT Tcl_AppInit
68 #endif
69 extern int TCL_LOCAL_APPINIT _ANSI_ARGS_((Tcl_Interp *interp));
70
71 /*
72 * The following #if block allows you to change how Tcl finds the startup
73 * script, prime the library or encoding paths, fiddle with the argv,
74 * etc., without needing to rewrite Tcl_Main()
75 */
76
77 #ifdef TCL_LOCAL_MAIN_HOOK
78 extern int TCL_LOCAL_MAIN_HOOK _ANSI_ARGS_((int *argc, char ***argv));
79 #endif
80
81 char buffer[MAX_PATH +1];
82 char *p;
83 /*
84 * Set up the default locale to be standard "C" locale so parsing
85 * is performed correctly.
86 */
87
88 setlocale(LC_ALL, "C");
89 setargv(&argc, &argv);
90
91 /*
92 * Replace argv[0] with full pathname of executable, and forward
93 * slashes substituted for backslashes.
94 */
95
96 GetModuleFileName(NULL, buffer, sizeof(buffer));
97 argv[0] = buffer;
98 for (p = buffer; *p != '\0'; p++) {
99 if (*p == '\\') {
100 *p = '/';
101 }
102 }
103
104 #ifdef TCL_LOCAL_MAIN_HOOK
105 TCL_LOCAL_MAIN_HOOK(&argc, &argv);
106 #endif
107
108 Tcl_Main(argc, argv, TCL_LOCAL_APPINIT);
109
110 return 0; /* Needed only to prevent compiler warning. */
111 }
112
113
114 /*
115 *----------------------------------------------------------------------
116 *
117 * Tcl_AppInit --
118 *
119 * This procedure performs application-specific initialization.
120 * Most applications, especially those that incorporate additional
121 * packages, will have their own version of this procedure.
122 *
123 * Results:
124 * Returns a standard Tcl completion code, and leaves an error
125 * message in the interp's result if an error occurs.
126 *
127 * Side effects:
128 * Depends on the startup script.
129 *
130 *----------------------------------------------------------------------
131 */
132
133 int
134 Tcl_AppInit(interp)
135 Tcl_Interp *interp; /* Interpreter for application. */
136 {
137 if (Tcl_Init(interp) == TCL_ERROR) {
138 return TCL_ERROR;
139 }
140
141 #ifdef TCL_TEST
142 if (Tcltest_Init(interp) == TCL_ERROR) {
143 return TCL_ERROR;
144 }
145 Tcl_StaticPackage(interp, "Tcltest", Tcltest_Init,
146 (Tcl_PackageInitProc *) NULL);
147 if (TclObjTest_Init(interp) == TCL_ERROR) {
148 return TCL_ERROR;
149 }
150 #ifdef TCL_THREADS
151 if (TclThread_Init(interp) == TCL_ERROR) {
152 return TCL_ERROR;
153 }
154 #endif
155 if (Procbodytest_Init(interp) == TCL_ERROR) {
156 return TCL_ERROR;
157 }
158 Tcl_StaticPackage(interp, "procbodytest", Procbodytest_Init,
159 Procbodytest_SafeInit);
160 #endif /* TCL_TEST */
161
162 /*
163 * Call the init procedures for included packages. Each call should
164 * look like this:
165 *
166 * if (Mod_Init(interp) == TCL_ERROR) {
167 * return TCL_ERROR;
168 * }
169 *
170 * where "Mod" is the name of the module.
171 */
172
173 /*
174 * Call Tcl_CreateCommand for application-specific commands, if
175 * they weren't already created by the init procedures called above.
176 */
177
178 /*
179 * Specify a user-specific startup file to invoke if the application
180 * is run interactively. Typically the startup file is "~/.apprc"
181 * where "app" is the name of the application. If this line is deleted
182 * then no user-specific startup file will be run under any conditions.
183 */
184
185 Tcl_SetVar(interp, "tcl_rcFileName", "~/tclshrc.tcl", TCL_GLOBAL_ONLY);
186 return TCL_OK;
187 }
188
189 /*
190 *-------------------------------------------------------------------------
191 *
192 * setargv --
193 *
194 * Parse the Windows command line string into argc/argv. Done here
195 * because we don't trust the builtin argument parser in crt0.
196 * Windows applications are responsible for breaking their command
197 * line into arguments.
198 *
199 * 2N backslashes + quote -> N backslashes + begin quoted string
200 * 2N + 1 backslashes + quote -> literal
201 * N backslashes + non-quote -> literal
202 * quote + quote in a quoted string -> single quote
203 * quote + quote not in quoted string -> empty string
204 * quote -> begin quoted string
205 *
206 * Results:
207 * Fills argcPtr with the number of arguments and argvPtr with the
208 * array of arguments.
209 *
210 * Side effects:
211 * Memory allocated.
212 *
213 *--------------------------------------------------------------------------
214 */
215
216 static void
217 setargv(argcPtr, argvPtr)
218 int *argcPtr; /* Filled with number of argument strings. */
219 char ***argvPtr; /* Filled with argument strings (malloc'd). */
220 {
221 char *cmdLine, *p, *arg, *argSpace;
222 char **argv;
223 int argc, size, inquote, copy, slashes;
224
225 cmdLine = GetCommandLine(); /* INTL: BUG */
226
227 /*
228 * Precompute an overly pessimistic guess at the number of arguments
229 * in the command line by counting non-space spans.
230 */
231
232 size = 2;
233 for (p = cmdLine; *p != '\0'; p++) {
234 if ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */
235 size++;
236 while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */
237 p++;
238 }
239 if (*p == '\0') {
240 break;
241 }
242 }
243 }
244 argSpace = (char *) Tcl_Alloc(
245 (unsigned) (size * sizeof(char *) + strlen(cmdLine) + 1));
246 argv = (char **) argSpace;
247 argSpace += size * sizeof(char *);
248 size--;
249
250 p = cmdLine;
251 for (argc = 0; argc < size; argc++) {
252 argv[argc] = arg = argSpace;
253 while ((*p == ' ') || (*p == '\t')) { /* INTL: ISO space. */
254 p++;
255 }
256 if (*p == '\0') {
257 break;
258 }
259
260 inquote = 0;
261 slashes = 0;
262 while (1) {
263 copy = 1;
264 while (*p == '\\') {
265 slashes++;
266 p++;
267 }
268 if (*p == '"') {
269 if ((slashes & 1) == 0) {
270 copy = 0;
271 if ((inquote) && (p[1] == '"')) {
272 p++;
273 copy = 1;
274 } else {
275 inquote = !inquote;
276 }
277 }
278 slashes >>= 1;
279 }
280
281 while (slashes) {
282 *arg = '\\';
283 arg++;
284 slashes--;
285 }
286
287 if ((*p == '\0')
288 || (!inquote && ((*p == ' ') || (*p == '\t')))) { /* INTL: ISO space. */
289 break;
290 }
291 if (copy != 0) {
292 *arg = *p;
293 arg++;
294 }
295 p++;
296 }
297 *arg = '\0';
298 argSpace = arg + 1;
299 }
300 argv[argc] = NULL;
301
302 *argcPtr = argc;
303 *argvPtr = argv;
304 }
305
306
307 /* $History: tclappInit.c $
308 *
309 * ***************** Version 1 *****************
310 * User: Dtashley Date: 1/02/01 Time: 1:26a
311 * Created in $/IjuScripter, IjuConsole/Source/Tcl Base
312 * Initial check-in.
313 */
314
315 /* End of TCLAPPINIT.C */
316

dashley@gmail.com
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