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