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1 | /* Open and close files for bison, | |
2 | Copyright (C) 1984, 1986, 1989, 1992 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of Bison, the GNU Compiler Compiler. | |
5 | ||
6 | Bison is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | Bison is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with Bison; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | ||
21 | #if defined (VMS) & !defined (__VMS_POSIX) | |
22 | #include <ssdef.h> | |
23 | #define unlink delete | |
24 | #ifndef XPFILE | |
25 | #define XPFILE "GNU_BISON:[000000]BISON.SIMPLE" | |
26 | #endif | |
27 | #ifndef XPFILE1 | |
28 | #define XPFILE1 "GNU_BISON:[000000]BISON.HAIRY" | |
29 | #endif | |
30 | #endif | |
31 | ||
32 | #if defined (_MSC_VER) | |
33 | #ifndef XPFILE | |
34 | #define XPFILE "c:/usr/local/lib/bison.simple" | |
35 | #endif | |
36 | #ifndef XPFILE1 | |
37 | #define XPFILE1 "c:/usr/local/lib/bison.hairy" | |
38 | #endif | |
39 | #endif | |
40 | ||
41 | #include <stdio.h> | |
42 | #include "system.h" | |
43 | #include "files.h" | |
44 | #include "new.h" | |
45 | #include "gram.h" | |
46 | ||
47 | FILE *finput = NULL; | |
48 | FILE *foutput = NULL; | |
49 | FILE *fdefines = NULL; | |
50 | FILE *ftable = NULL; | |
51 | FILE *fattrs = NULL; | |
52 | FILE *fguard = NULL; | |
53 | FILE *faction = NULL; | |
54 | FILE *fparser = NULL; | |
55 | ||
56 | /* File name specified with -o for the output file, or 0 if no -o. */ | |
57 | char *spec_outfile; | |
58 | ||
59 | char *infile; | |
60 | char *outfile; | |
61 | char *defsfile; | |
62 | char *tabfile; | |
63 | char *attrsfile; | |
64 | char *guardfile; | |
65 | char *actfile; | |
66 | char *tmpattrsfile; | |
67 | char *tmptabfile; | |
68 | char *tmpdefsfile; | |
69 | ||
70 | extern int noparserflag; | |
71 | ||
72 | extern char *mktemp(); /* So the compiler won't complain */ | |
73 | extern char *getenv(); | |
74 | extern void perror(); | |
75 | FILE *tryopen(); /* This might be a good idea */ | |
76 | void done(); | |
77 | ||
78 | extern char *program_name; | |
79 | extern int verboseflag; | |
80 | extern int definesflag; | |
81 | int fixed_outfiles = 0; | |
82 | \f | |
83 | ||
84 | char* | |
85 | stringappend(string1, end1, string2) | |
86 | char *string1; | |
87 | int end1; | |
88 | char *string2; | |
89 | { | |
90 | register char *ostring; | |
91 | register char *cp, *cp1; | |
92 | register int i; | |
93 | ||
94 | cp = string2; i = 0; | |
95 | while (*cp++) i++; | |
96 | ||
97 | ostring = NEW2(i+end1+1, char); | |
98 | ||
99 | cp = ostring; | |
100 | cp1 = string1; | |
101 | for (i = 0; i < end1; i++) | |
102 | *cp++ = *cp1++; | |
103 | ||
104 | cp1 = string2; | |
105 | while (*cp++ = *cp1++) ; | |
106 | ||
107 | return ostring; | |
108 | } | |
109 | ||
110 | ||
111 | /* JF this has been hacked to death. Nowaday it sets up the file names for | |
112 | the output files, and opens the tmp files and the parser */ | |
113 | void | |
114 | openfiles() | |
115 | { | |
116 | char *name_base; | |
117 | register char *cp; | |
118 | char *filename; | |
119 | int base_length; | |
120 | int short_base_length; | |
121 | ||
122 | #if defined (VMS) & !defined (__VMS_POSIX) | |
123 | char *tmp_base = "sys$scratch:b_"; | |
124 | #else | |
125 | char *tmp_base = "/tmp/b."; | |
126 | #endif | |
127 | int tmp_len; | |
128 | ||
129 | #ifdef MSDOS | |
130 | tmp_base = getenv ("TMP"); | |
131 | if (tmp_base == 0) | |
132 | tmp_base = ""; | |
133 | strlwr (infile); | |
134 | #endif /* MSDOS */ | |
135 | ||
136 | tmp_len = strlen (tmp_base); | |
137 | ||
138 | if (spec_outfile) | |
139 | { | |
140 | /* -o was specified. The precise -o name will be used for ftable. | |
141 | For other output files, remove the ".c" or ".tab.c" suffix. */ | |
142 | name_base = spec_outfile; | |
143 | #ifdef MSDOS | |
144 | strlwr (name_base); | |
145 | #endif /* MSDOS */ | |
146 | /* BASE_LENGTH includes ".tab" but not ".c". */ | |
147 | base_length = strlen (name_base); | |
148 | if (!strcmp (name_base + base_length - 2, ".c")) | |
149 | base_length -= 2; | |
150 | /* SHORT_BASE_LENGTH includes neither ".tab" nor ".c". */ | |
151 | short_base_length = base_length; | |
152 | if (!strncmp (name_base + short_base_length - 4, ".tab", 4)) | |
153 | short_base_length -= 4; | |
154 | else if (!strncmp (name_base + short_base_length - 4, "_tab", 4)) | |
155 | short_base_length -= 4; | |
156 | } | |
157 | else if (spec_file_prefix) | |
158 | { | |
159 | /* -b was specified. Construct names from it. */ | |
160 | /* SHORT_BASE_LENGTH includes neither ".tab" nor ".c". */ | |
161 | short_base_length = strlen (spec_file_prefix); | |
162 | /* Count room for `.tab'. */ | |
163 | base_length = short_base_length + 4; | |
164 | name_base = (char *) xmalloc (base_length + 1); | |
165 | /* Append `.tab'. */ | |
166 | strcpy (name_base, spec_file_prefix); | |
167 | #ifdef VMS | |
168 | strcat (name_base, "_tab"); | |
169 | #else | |
170 | strcat (name_base, ".tab"); | |
171 | #endif | |
172 | #ifdef MSDOS | |
173 | strlwr (name_base); | |
174 | #endif /* MSDOS */ | |
175 | } | |
176 | else | |
177 | { | |
178 | /* -o was not specified; compute output file name from input | |
179 | or use y.tab.c, etc., if -y was specified. */ | |
180 | ||
181 | name_base = fixed_outfiles ? "y.y" : infile; | |
182 | ||
183 | /* BASE_LENGTH gets length of NAME_BASE, sans ".y" suffix if any. */ | |
184 | ||
185 | base_length = strlen (name_base); | |
186 | if (!strcmp (name_base + base_length - 2, ".y")) | |
187 | base_length -= 2; | |
188 | short_base_length = base_length; | |
189 | ||
190 | #ifdef VMS | |
191 | name_base = stringappend(name_base, short_base_length, "_tab"); | |
192 | #else | |
193 | #ifdef MSDOS | |
194 | name_base = stringappend(name_base, short_base_length, "_tab"); | |
195 | #else | |
196 | name_base = stringappend(name_base, short_base_length, ".tab"); | |
197 | #endif /* not MSDOS */ | |
198 | #endif | |
199 | base_length = short_base_length + 4; | |
200 | } | |
201 | ||
202 | finput = tryopen(infile, "r"); | |
203 | ||
204 | if (! noparserflag) | |
205 | { | |
206 | filename = getenv("BISON_SIMPLE"); | |
207 | #ifdef MSDOS | |
208 | /* File doesn't exist in current directory; try in INIT directory. */ | |
209 | cp = getenv("INIT"); | |
210 | if (filename == 0 && cp != NULL) | |
211 | { | |
212 | filename = xmalloc(strlen(cp) + strlen(PFILE) + 2); | |
213 | strcpy(filename, cp); | |
214 | cp = filename + strlen(filename); | |
215 | *cp++ = '/'; | |
216 | strcpy(cp, PFILE); | |
217 | } | |
218 | #endif /* MSDOS */ | |
219 | fparser = tryopen(filename ? filename : PFILE, "r"); | |
220 | } | |
221 | ||
222 | if (verboseflag) | |
223 | { | |
224 | #ifdef MSDOS | |
225 | outfile = stringappend(name_base, short_base_length, ".out"); | |
226 | #else | |
227 | /* We used to use just .out if spec_name_prefix (-p) was used, | |
228 | but that conflicts with Posix. */ | |
229 | outfile = stringappend(name_base, short_base_length, ".output"); | |
230 | #endif | |
231 | foutput = tryopen(outfile, "w"); | |
232 | } | |
233 | ||
234 | if (noparserflag) | |
235 | { | |
236 | /* use permanent name for actions file */ | |
237 | actfile = stringappend(name_base, short_base_length, ".act"); | |
238 | faction = tryopen(actfile, "w"); | |
239 | } | |
240 | ||
241 | #ifdef MSDOS | |
242 | if (! noparserflag) | |
243 | actfile = mktemp(stringappend(tmp_base, tmp_len, "acXXXXXX")); | |
244 | tmpattrsfile = mktemp(stringappend(tmp_base, tmp_len, "atXXXXXX")); | |
245 | tmptabfile = mktemp(stringappend(tmp_base, tmp_len, "taXXXXXX")); | |
246 | tmpdefsfile = mktemp(stringappend(tmp_base, tmp_len, "deXXXXXX")); | |
247 | #else | |
248 | if (! noparserflag) | |
249 | actfile = mktemp(stringappend(tmp_base, tmp_len, "act.XXXXXX")); | |
250 | tmpattrsfile = mktemp(stringappend(tmp_base, tmp_len, "attrs.XXXXXX")); | |
251 | tmptabfile = mktemp(stringappend(tmp_base, tmp_len, "tab.XXXXXX")); | |
252 | tmpdefsfile = mktemp(stringappend(tmp_base, tmp_len, "defs.XXXXXX")); | |
253 | #endif /* not MSDOS */ | |
254 | ||
255 | if (! noparserflag) | |
256 | faction = tryopen(actfile, "w+"); | |
257 | fattrs = tryopen(tmpattrsfile,"w+"); | |
258 | ftable = tryopen(tmptabfile, "w+"); | |
259 | ||
260 | if (definesflag) | |
261 | { | |
262 | defsfile = stringappend(name_base, base_length, ".h"); | |
263 | fdefines = tryopen(tmpdefsfile, "w+"); | |
264 | } | |
265 | ||
266 | #ifndef MSDOS | |
267 | if (! noparserflag) | |
268 | unlink(actfile); | |
269 | unlink(tmpattrsfile); | |
270 | unlink(tmptabfile); | |
271 | unlink(tmpdefsfile); | |
272 | #endif | |
273 | ||
274 | /* These are opened by `done' or `open_extra_files', if at all */ | |
275 | if (spec_outfile) | |
276 | tabfile = spec_outfile; | |
277 | else | |
278 | tabfile = stringappend(name_base, base_length, ".c"); | |
279 | ||
280 | #ifdef VMS | |
281 | attrsfile = stringappend(name_base, short_base_length, "_stype.h"); | |
282 | guardfile = stringappend(name_base, short_base_length, "_guard.c"); | |
283 | #else | |
284 | #ifdef MSDOS | |
285 | attrsfile = stringappend(name_base, short_base_length, ".sth"); | |
286 | guardfile = stringappend(name_base, short_base_length, ".guc"); | |
287 | #else | |
288 | attrsfile = stringappend(name_base, short_base_length, ".stype.h"); | |
289 | guardfile = stringappend(name_base, short_base_length, ".guard.c"); | |
290 | #endif /* not MSDOS */ | |
291 | #endif /* not VMS */ | |
292 | } | |
293 | ||
294 | ||
295 | ||
296 | /* open the output files needed only for the semantic parser. | |
297 | This is done when %semantic_parser is seen in the declarations section. */ | |
298 | ||
299 | void | |
300 | open_extra_files() | |
301 | { | |
302 | FILE *ftmp; | |
303 | int c; | |
304 | char *filename, *cp; | |
305 | ||
306 | if (fparser) | |
307 | fclose(fparser); | |
308 | ||
309 | if (! noparserflag) | |
310 | { | |
311 | filename = (char *) getenv ("BISON_HAIRY"); | |
312 | #ifdef MSDOS | |
313 | /* File doesn't exist in current directory; try in INIT directory. */ | |
314 | cp = getenv("INIT"); | |
315 | if (filename == 0 && cp != NULL) | |
316 | { | |
317 | filename = xmalloc(strlen(cp) + strlen(PFILE1) + 2); | |
318 | strcpy(filename, cp); | |
319 | cp = filename + strlen(filename); | |
320 | *cp++ = '/'; | |
321 | strcpy(cp, PFILE1); | |
322 | } | |
323 | #endif | |
324 | fparser= tryopen(filename ? filename : PFILE1, "r"); | |
325 | } | |
326 | ||
327 | /* JF change from inline attrs file to separate one */ | |
328 | ftmp = tryopen(attrsfile, "w"); | |
329 | rewind(fattrs); | |
330 | while((c=getc(fattrs))!=EOF) /* Thank god for buffering */ | |
331 | putc(c,ftmp); | |
332 | fclose(fattrs); | |
333 | fattrs=ftmp; | |
334 | ||
335 | fguard = tryopen(guardfile, "w"); | |
336 | ||
337 | } | |
338 | ||
339 | /* JF to make file opening easier. This func tries to open file | |
340 | NAME with mode MODE, and prints an error message if it fails. */ | |
341 | FILE * | |
342 | tryopen(name, mode) | |
343 | char *name; | |
344 | char *mode; | |
345 | { | |
346 | FILE *ptr; | |
347 | ||
348 | ptr = fopen(name, mode); | |
349 | if (ptr == NULL) | |
350 | { | |
351 | fprintf(stderr, "%s: ", program_name); | |
352 | perror(name); | |
353 | done(2); | |
354 | } | |
355 | return ptr; | |
356 | } | |
357 | ||
358 | void | |
359 | done(k) | |
360 | int k; | |
361 | { | |
362 | if (faction) | |
363 | fclose(faction); | |
364 | ||
365 | if (fattrs) | |
366 | fclose(fattrs); | |
367 | ||
368 | if (fguard) | |
369 | fclose(fguard); | |
370 | ||
371 | if (finput) | |
372 | fclose(finput); | |
373 | ||
374 | if (fparser) | |
375 | fclose(fparser); | |
376 | ||
377 | if (foutput) | |
378 | fclose(foutput); | |
379 | ||
380 | /* JF write out the output file */ | |
381 | if (k == 0 && ftable) | |
382 | { | |
383 | FILE *ftmp; | |
384 | register int c; | |
385 | ||
386 | ftmp=tryopen(tabfile, "w"); | |
387 | rewind(ftable); | |
388 | while((c=getc(ftable)) != EOF) | |
389 | putc(c,ftmp); | |
390 | fclose(ftmp); | |
391 | fclose(ftable); | |
392 | ||
393 | if (definesflag) | |
394 | { | |
395 | ftmp = tryopen(defsfile, "w"); | |
396 | fflush(fdefines); | |
397 | rewind(fdefines); | |
398 | while((c=getc(fdefines)) != EOF) | |
399 | putc(c,ftmp); | |
400 | fclose(ftmp); | |
401 | fclose(fdefines); | |
402 | } | |
403 | } | |
404 | ||
405 | #if defined (VMS) & !defined (__VMS_POSIX) | |
406 | if (faction && ! noparserflag) | |
407 | delete(actfile); | |
408 | if (fattrs) | |
409 | delete(tmpattrsfile); | |
410 | if (ftable) | |
411 | delete(tmptabfile); | |
412 | if (k==0) sys$exit(SS$_NORMAL); | |
413 | sys$exit(SS$_ABORT); | |
414 | #else | |
415 | #ifdef MSDOS | |
416 | if (actfile && ! noparserflag) unlink(actfile); | |
417 | if (tmpattrsfile) unlink(tmpattrsfile); | |
418 | if (tmptabfile) unlink(tmptabfile); | |
419 | if (tmpdefsfile) unlink(tmpdefsfile); | |
420 | #endif /* MSDOS */ | |
421 | exit(k); | |
422 | #endif /* not VMS, or __VMS_POSIX */ | |
423 | } |