[bison.git] / src / files.c

/* Open and close files for bison,
   Copyright (C) 1984, 1986, 1989 Free Software Foundation, Inc.

This file is part of Bison, the GNU Compiler Compiler.

Bison is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

Bison is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Bison; see the file COPYING.  If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */


#ifdef VMS
#include <ssdef.h>
#define unlink delete
#ifndef XPFILE
#define XPFILE "GNU_BISON:[000000]BISON.SIMPLE"
#endif
#ifndef XPFILE1
#define XPFILE1 "GNU_BISON:[000000]BISON.HAIRY"
#endif
#endif

#include <stdio.h>
#include "system.h"
#include "files.h"
#include "new.h"
#include "gram.h"

FILE *finput = NULL;
FILE *foutput = NULL;
FILE *fdefines = NULL;
FILE *ftable = NULL;
FILE *fattrs = NULL;
FILE *fguard = NULL;
FILE *faction = NULL;
FILE *fparser = NULL;

/* File name specified with -o for the output file, or 0 if no -o.  */
char *spec_outfile;

char *infile;
char *outfile;
char *defsfile;
char *tabfile;
char *attrsfile;
char *guardfile;
char *actfile;
char *tmpattrsfile;
char *tmptabfile;
char *tmpdefsfile;

extern char	*mktemp();	/* So the compiler won't complain */
extern char	*getenv();
extern void	perror();
FILE	*tryopen();	/* This might be a good idea */
void done();

extern char *program_name;
extern int verboseflag;
extern int definesflag;
int fixed_outfiles = 0;
\f

char*
stringappend(string1, end1, string2)
char *string1;
int end1;
char *string2;
{
  register char *ostring;
  register char *cp, *cp1;
  register int i;

  cp = string2;  i = 0;
  while (*cp++) i++;

  ostring = NEW2(i+end1+1, char);

  cp = ostring;
  cp1 = string1;
  for (i = 0; i < end1; i++)
    *cp++ = *cp1++;

  cp1 = string2;
  while (*cp++ = *cp1++) ;

  return ostring;
}


/* JF this has been hacked to death.  Nowaday it sets up the file names for
   the output files, and opens the tmp files and the parser */
void
openfiles()
{
  char *name_base;
  register char *cp;
  char *filename;
  int base_length;
  int short_base_length;

#ifdef VMS
  char *tmp_base = "sys$scratch:b_";
#else
  char *tmp_base = "/tmp/b.";
#endif
  int tmp_len;

#ifdef MSDOS
  tmp_base = getenv ("TMP");
  if (tmp_base == 0)
    tmp_base = "";
  strlwr (infile);
#endif /* MSDOS */

  tmp_len = strlen (tmp_base);

  if (spec_outfile)
    {
      /* -o was specified.  The precise -o name will be used for ftable.
	 For other output files, remove the ".c" or ".tab.c" suffix.  */
      name_base = spec_outfile;
#ifdef MSDOS
      strlwr (name_base);
#endif /* MSDOS */
      /* BASE_LENGTH includes ".tab" but not ".c".  */
      base_length = strlen (name_base);
      if (!strcmp (name_base + base_length - 2, ".c"))
	base_length -= 2;
      /* SHORT_BASE_LENGTH includes neither ".tab" nor ".c".  */
      short_base_length = base_length;
      if (!strncmp (name_base + short_base_length - 4, ".tab", 4))
	short_base_length -= 4;
      else if (!strncmp (name_base + short_base_length - 4, "_tab", 4))
	short_base_length -= 4;
    }
  else if (spec_file_prefix)
    {
      /* -b was specified.  Construct names from it.  */
      /* SHORT_BASE_LENGTH includes neither ".tab" nor ".c".  */
      short_base_length = strlen (spec_file_prefix);
      /* Count room for `.tab'.  */
      base_length = short_base_length + 4;
      name_base = (char *) xmalloc (base_length + 1);
      /* Append `.tab'.  */
      strcpy (name_base, spec_file_prefix);
#ifdef VMS
      strcat (name_base, "_tab");
#else
      strcat (name_base, ".tab");
#endif
#ifdef MSDOS
      strlwr (name_base);
#endif /* MSDOS */
    }
  else
    {
      /* -o was not specified; compute output file name from input
	 or use y.tab.c, etc., if -y was specified.  */

      name_base = fixed_outfiles ? "y.y" : infile;

      /* BASE_LENGTH gets length of NAME_BASE, sans ".y" suffix if any.  */

      base_length = strlen (name_base);
      if (!strcmp (name_base + base_length - 2, ".y"))
	base_length -= 2;
      short_base_length = base_length;

#ifdef VMS
      name_base = stringappend(name_base, short_base_length, "_tab");
#else
#ifdef MSDOS
      name_base = stringappend(name_base, short_base_length, "_tab");
#else
      name_base = stringappend(name_base, short_base_length, ".tab");
#endif /* not MSDOS */
#endif
      base_length = short_base_length + 4;
    }

  finput = tryopen(infile, "r");

  filename = getenv("BISON_SIMPLE");
#ifdef MSDOS
  /* File doesn't exist in current directory; try in INIT directory.  */
  cp = getenv("INIT");
  if (filename == 0 && cp != NULL)
    {
      filename = xmalloc(strlen(cp) + strlen(PFILE) + 2);
      strcpy(filename, cp);
      cp = filename + strlen(filename);
      *cp++ = '/';
      strcpy(cp, PFILE);
    }
#endif /* MSDOS */
  fparser = tryopen(filename ? filename : PFILE, "r");

  if (verboseflag)
    {
#ifdef MSDOS
      outfile = stringappend(name_base, short_base_length, ".out");
#else
      /* We used to use just .out if spec_name_prefix (-p) was used,
	 but that conflicts with Posix.  */
      outfile = stringappend(name_base, short_base_length, ".output");
#endif
      foutput = tryopen(outfile, "w");
    }

#ifdef MSDOS
  actfile = mktemp(stringappend(tmp_base, tmp_len, "acXXXXXX"));
  tmpattrsfile = mktemp(stringappend(tmp_base, tmp_len, "atXXXXXX"));
  tmptabfile = mktemp(stringappend(tmp_base, tmp_len, "taXXXXXX"));
  tmpdefsfile = mktemp(stringappend(tmp_base, tmp_len, "deXXXXXX"));
#else
  actfile = mktemp(stringappend(tmp_base, tmp_len, "act.XXXXXX"));
  tmpattrsfile = mktemp(stringappend(tmp_base, tmp_len, "attrs.XXXXXX"));
  tmptabfile = mktemp(stringappend(tmp_base, tmp_len, "tab.XXXXXX"));
  tmpdefsfile = mktemp(stringappend(tmp_base, tmp_len, "defs.XXXXXX"));
#endif /* not MSDOS */

  faction = tryopen(actfile, "w+");
  fattrs = tryopen(tmpattrsfile,"w+");
  ftable = tryopen(tmptabfile, "w+");

  if (definesflag)
    {
      defsfile = stringappend(name_base, base_length, ".h");
      fdefines = tryopen(tmpdefsfile, "w+");
    }

#ifndef MSDOS
  unlink(actfile);
  unlink(tmpattrsfile);
  unlink(tmptabfile);
  unlink(tmpdefsfile);
#endif

	/* These are opened by `done' or `open_extra_files', if at all */
  if (spec_outfile)
    tabfile = spec_outfile;
  else
    tabfile = stringappend(name_base, base_length, ".c");

#ifdef VMS
  attrsfile = stringappend(name_base, short_base_length, "_stype.h");
  guardfile = stringappend(name_base, short_base_length, "_guard.c");
#else
#ifdef MSDOS
  attrsfile = stringappend(name_base, short_base_length, ".sth");
  guardfile = stringappend(name_base, short_base_length, ".guc");
#else
  attrsfile = stringappend(name_base, short_base_length, ".stype.h");
  guardfile = stringappend(name_base, short_base_length, ".guard.c");
#endif /* not MSDOS */
#endif /* not VMS */
}


/* open the output files needed only for the semantic parser.
This is done when %semantic_parser is seen in the declarations section.  */

void
open_extra_files()
{
  FILE *ftmp;
  int c;
  char *filename, *cp;

  fclose(fparser);

  filename = (char *) getenv ("BISON_HAIRY");
#ifdef MSDOS
  /* File doesn't exist in current directory; try in INIT directory.  */
  cp = getenv("INIT");
  if (filename == 0 && cp != NULL)
    {
      filename = xmalloc(strlen(cp) + strlen(PFILE1) + 2);
      strcpy(filename, cp);
      cp = filename + strlen(filename);
      *cp++ = '/';
      strcpy(cp, PFILE1);
    }
#endif
  fparser= tryopen(filename ? filename : PFILE1, "r");

		/* JF change from inline attrs file to separate one */
  ftmp = tryopen(attrsfile, "w");
  rewind(fattrs);
  while((c=getc(fattrs))!=EOF)	/* Thank god for buffering */
    putc(c,ftmp);
  fclose(fattrs);
  fattrs=ftmp;

  fguard = tryopen(guardfile, "w");

}

	/* JF to make file opening easier.  This func tries to open file
	   NAME with mode MODE, and prints an error message if it fails. */
FILE *
tryopen(name, mode)
char *name;
char *mode;
{
  FILE	*ptr;

  ptr = fopen(name, mode);
  if (ptr == NULL)
    {
      fprintf(stderr, "%s: ", program_name);
      perror(name);
      done(2);
    }
  return ptr;
}

void
done(k)
int k;
{
  if (faction)
    fclose(faction);

  if (fattrs)
    fclose(fattrs);

  if (fguard)
    fclose(fguard);

  if (finput)
    fclose(finput);

  if (fparser)
    fclose(fparser);

  if (foutput)
    fclose(foutput);

	/* JF write out the output file */
  if (k == 0 && ftable)
    {
      FILE *ftmp;
      register int c;

      ftmp=tryopen(tabfile, "w");
      rewind(ftable);
      while((c=getc(ftable)) != EOF)
        putc(c,ftmp);
      fclose(ftmp);
      fclose(ftable);

      if (definesflag)
        {
          ftmp = tryopen(defsfile, "w");
          fflush(fdefines);
          rewind(fdefines);
          while((c=getc(fdefines)) != EOF)
            putc(c,ftmp);
          fclose(ftmp);
          fclose(fdefines);
        }
    }

#ifdef VMS
  if (faction)
    delete(actfile);
  if (fattrs)
    delete(tmpattrsfile);
  if (ftable)
    delete(tmptabfile);
  if (k==0) sys$exit(SS$_NORMAL);
  sys$exit(SS$_ABORT);
#else
#ifdef MSDOS
  if (actfile) unlink(actfile);
  if (tmpattrsfile) unlink(tmpattrsfile);
  if (tmptabfile) unlink(tmptabfile);
  if (tmpdefsfile) unlink(tmpdefsfile);
#endif /* MSDOS */
  exit(k);
#endif /* not VMS */
}
Commit	Line	Data
54bd0db4 RS	1	/* Open and close files for bison,
	2	Copyright (C) 1984, 1986, 1989 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	#ifdef VMS
	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 char mktemp(); / So the compiler won't complain */
	62	extern char *getenv();
	63	extern void perror();
	64	FILE tryopen(); / This might be a good idea */
65	void done();
66
67	extern char *program_name;
68	extern int verboseflag;
69	extern int definesflag;
70	int fixed_outfiles = 0;
71	\f
72
73	char*
74	stringappend(string1, end1, string2)
75	char *string1;
76	int end1;
77	char *string2;
78	{
79	register char *ostring;
80	register char cp, cp1;
81	register int i;
82
83	cp = string2; i = 0;
84	while (*cp++) i++;
85
86	ostring = NEW2(i+end1+1, char);
87
88	cp = ostring;
89	cp1 = string1;
90	for (i = 0; i < end1; i++)
91	cp++ = cp1++;
92
93	cp1 = string2;
94	while (cp++ = cp1++) ;
95
96	return ostring;
97	}
98
99
100	/* JF this has been hacked to death. Nowaday it sets up the file names for
101	the output files, and opens the tmp files and the parser */
102	void
103	openfiles()
104	{
105	char *name_base;
106	register char *cp;
107	char *filename;
108	int base_length;
109	int short_base_length;
110
111	#ifdef VMS
112	char *tmp_base = "sys$scratch:b_";
113	#else
114	char *tmp_base = "/tmp/b.";
115	#endif
116	int tmp_len;
117
118	#ifdef MSDOS
119	tmp_base = getenv ("TMP");
120	if (tmp_base == 0)
121	tmp_base = "";
122	strlwr (infile);
123	#endif /* MSDOS */
124
125	tmp_len = strlen (tmp_base);
126
127	if (spec_outfile)
128	{
129	/* -o was specified. The precise -o name will be used for ftable.
130	For other output files, remove the ".c" or ".tab.c" suffix. */
131	name_base = spec_outfile;
132	#ifdef MSDOS
133	strlwr (name_base);
134	#endif /* MSDOS */
135	/* BASE_LENGTH includes ".tab" but not ".c". */
136	base_length = strlen (name_base);
137	if (!strcmp (name_base + base_length - 2, ".c"))
138	base_length -= 2;
139	/* SHORT_BASE_LENGTH includes neither ".tab" nor ".c". */
140	short_base_length = base_length;
141	if (!strncmp (name_base + short_base_length - 4, ".tab", 4))
142	short_base_length -= 4;
143	else if (!strncmp (name_base + short_base_length - 4, "_tab", 4))
144	short_base_length -= 4;
145	}
146	else if (spec_file_prefix)
147	{
148	/* -b was specified. Construct names from it. */
149	/* SHORT_BASE_LENGTH includes neither ".tab" nor ".c". */
150	short_base_length = strlen (spec_file_prefix);
151	/* Count room for `.tab'. */
152	base_length = short_base_length + 4;
40675e7c	153	name_base = (char *) xmalloc (base_length + 1);
54bd0db4 RS	154	/* Append `.tab'. */
	155	strcpy (name_base, spec_file_prefix);
	156	#ifdef VMS
	157	strcat (name_base, "_tab");
	158	#else
	159	strcat (name_base, ".tab");
	160	#endif
	161	#ifdef MSDOS
	162	strlwr (name_base);
	163	#endif /* MSDOS */
	164	}
	165	else
	166	{
	167	/* -o was not specified; compute output file name from input
	168	or use y.tab.c, etc., if -y was specified. */
	169
	170	name_base = fixed_outfiles ? "y.y" : infile;
	171
	172	/* BASE_LENGTH gets length of NAME_BASE, sans ".y" suffix if any. */
	173
	174	base_length = strlen (name_base);
	175	if (!strcmp (name_base + base_length - 2, ".y"))
	176	base_length -= 2;
	177	short_base_length = base_length;
	178
	179	#ifdef VMS
	180	name_base = stringappend(name_base, short_base_length, "_tab");
	181	#else
	182	#ifdef MSDOS
	183	name_base = stringappend(name_base, short_base_length, "_tab");
	184	#else
	185	name_base = stringappend(name_base, short_base_length, ".tab");
	186	#endif /* not MSDOS */
	187	#endif
	188	base_length = short_base_length + 4;
	189	}
	190
	191	finput = tryopen(infile, "r");
	192
	193	filename = getenv("BISON_SIMPLE");
	194	#ifdef MSDOS
	195	/* File doesn't exist in current directory; try in INIT directory. */
	196	cp = getenv("INIT");
40675e7c	197	if (filename == 0 && cp != NULL)
54bd0db4	198	{
40675e7c	199	filename = xmalloc(strlen(cp) + strlen(PFILE) + 2);
54bd0db4 RS	200	strcpy(filename, cp);
	201	cp = filename + strlen(filename);
	202	*cp++ = '/';
	203	strcpy(cp, PFILE);
	204	}
	205	#endif /* MSDOS */
	206	fparser = tryopen(filename ? filename : PFILE, "r");
	207
	208	if (verboseflag)
	209	{
	210	#ifdef MSDOS
	211	outfile = stringappend(name_base, short_base_length, ".out");
	212	#else
	213	/* We used to use just .out if spec_name_prefix (-p) was used,
	214	but that conflicts with Posix. */
	215	outfile = stringappend(name_base, short_base_length, ".output");
	216	#endif
	217	foutput = tryopen(outfile, "w");
	218	}
	219
	220	#ifdef MSDOS
	221	actfile = mktemp(stringappend(tmp_base, tmp_len, "acXXXXXX"));
	222	tmpattrsfile = mktemp(stringappend(tmp_base, tmp_len, "atXXXXXX"));
	223	tmptabfile = mktemp(stringappend(tmp_base, tmp_len, "taXXXXXX"));
	224	tmpdefsfile = mktemp(stringappend(tmp_base, tmp_len, "deXXXXXX"));
	225	#else
	226	actfile = mktemp(stringappend(tmp_base, tmp_len, "act.XXXXXX"));
	227	tmpattrsfile = mktemp(stringappend(tmp_base, tmp_len, "attrs.XXXXXX"));
	228	tmptabfile = mktemp(stringappend(tmp_base, tmp_len, "tab.XXXXXX"));
	229	tmpdefsfile = mktemp(stringappend(tmp_base, tmp_len, "defs.XXXXXX"));
	230	#endif /* not MSDOS */
	231
	232	faction = tryopen(actfile, "w+");
	233	fattrs = tryopen(tmpattrsfile,"w+");
	234	ftable = tryopen(tmptabfile, "w+");
	235
	236	if (definesflag)
	237	{
	238	defsfile = stringappend(name_base, base_length, ".h");
	239	fdefines = tryopen(tmpdefsfile, "w+");
	240	}
	241
	242	#ifndef MSDOS
	243	unlink(actfile);
	244	unlink(tmpattrsfile);
	245	unlink(tmptabfile);
	246	unlink(tmpdefsfile);
	247	#endif
	248
	249	/* These are opened by `done' or `open_extra_files', if at all */
	250	if (spec_outfile)
	251	tabfile = spec_outfile;
	252	else
	253	tabfile = stringappend(name_base, base_length, ".c");
	254
	255	#ifdef VMS
	256	attrsfile = stringappend(name_base, short_base_length, "_stype.h");
	257	guardfile = stringappend(name_base, short_base_length, "_guard.c");
	258	#else
	259	#ifdef MSDOS
	260	attrsfile = stringappend(name_base, short_base_length, ".sth");
	261	guardfile = stringappend(name_base, short_base_length, ".guc");
	262	#else
	263	attrsfile = stringappend(name_base, short_base_length, ".stype.h");
264	guardfile = stringappend(name_base, short_base_length, ".guard.c");
265	#endif /* not MSDOS */
266	#endif /* not VMS */
267	}
268
269
270
271	/* open the output files needed only for the semantic parser.
272	This is done when %semantic_parser is seen in the declarations section. */
273
274	void
275	open_extra_files()
276	{
277	FILE *ftmp;
278	int c;
279	char filename, cp;
280
281	fclose(fparser);
282
283	filename = (char *) getenv ("BISON_HAIRY");
284	#ifdef MSDOS
285	/* File doesn't exist in current directory; try in INIT directory. */
286	cp = getenv("INIT");
40675e7c	287	if (filename == 0 && cp != NULL)
54bd0db4	288	{
40675e7c	289	filename = xmalloc(strlen(cp) + strlen(PFILE1) + 2);
54bd0db4 RS	290	strcpy(filename, cp);
	291	cp = filename + strlen(filename);
	292	*cp++ = '/';
	293	strcpy(cp, PFILE1);
	294	}
	295	#endif
	296	fparser= tryopen(filename ? filename : PFILE1, "r");
	297
	298	/* JF change from inline attrs file to separate one */
	299	ftmp = tryopen(attrsfile, "w");
	300	rewind(fattrs);
	301	while((c=getc(fattrs))!=EOF) /* Thank god for buffering */
	302	putc(c,ftmp);
	303	fclose(fattrs);
	304	fattrs=ftmp;
	305
	306	fguard = tryopen(guardfile, "w");
	307
	308	}
	309
	310	/* JF to make file opening easier. This func tries to open file
	311	NAME with mode MODE, and prints an error message if it fails. */
	312	FILE *
	313	tryopen(name, mode)
	314	char *name;
	315	char *mode;
	316	{
	317	FILE *ptr;
	318
	319	ptr = fopen(name, mode);
	320	if (ptr == NULL)
	321	{
	322	fprintf(stderr, "%s: ", program_name);
	323	perror(name);
	324	done(2);
	325	}
	326	return ptr;
	327	}
	328
	329	void
	330	done(k)
	331	int k;
	332	{
	333	if (faction)
	334	fclose(faction);
	335
	336	if (fattrs)
	337	fclose(fattrs);
	338
	339	if (fguard)
	340	fclose(fguard);
	341
	342	if (finput)
	343	fclose(finput);
	344
	345	if (fparser)
	346	fclose(fparser);
	347
	348	if (foutput)
	349	fclose(foutput);
	350
	351	/* JF write out the output file */
	352	if (k == 0 && ftable)
	353	{
354	FILE *ftmp;
355	register int c;
356
357	ftmp=tryopen(tabfile, "w");
358	rewind(ftable);
359	while((c=getc(ftable)) != EOF)
360	putc(c,ftmp);
361	fclose(ftmp);
362	fclose(ftable);
363
364	if (definesflag)
365	{
366	ftmp = tryopen(defsfile, "w");
367	fflush(fdefines);
368	rewind(fdefines);
369	while((c=getc(fdefines)) != EOF)
370	putc(c,ftmp);
371	fclose(ftmp);
372	fclose(fdefines);
373	}
374	}
375
376	#ifdef VMS
377	if (faction)
378	delete(actfile);
379	if (fattrs)
380	delete(tmpattrsfile);
381	if (ftable)
382	delete(tmptabfile);
383	if (k==0) sys$exit(SS$_NORMAL);
384	sys$exit(SS$_ABORT);
385	#else
386	#ifdef MSDOS
387	if (actfile) unlink(actfile);
388	if (tmpattrsfile) unlink(tmpattrsfile);
389	if (tmptabfile) unlink(tmptabfile);
390	if (tmpdefsfile) unlink(tmpdefsfile);
391	#endif /* MSDOS */
392	exit(k);
393	#endif /* not VMS */
394	}