mirror of
https://git.savannah.gnu.org/git/bison.git
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8963a27bde
(tryopen, tryclose, openfiles): Rename as... (xfopen, xfclose, open_files): this. (stringappend): static. * src/files.h: Complete the list of exported symbols. Propagate its use.
460 lines
12 KiB
C
460 lines
12 KiB
C
/* Open and close files for bison,
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Copyright (C) 1984, 1986, 1989, 1992, 2000 Free Software Foundation, Inc.
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This file is part of Bison, the GNU Compiler Compiler.
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Bison is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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Bison is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Bison; see the file COPYING. If not, write to the Free
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Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#include "system.h"
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#if defined (VMS) & !defined (__VMS_POSIX)
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# include <ssdef.h>
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# define unlink delete
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# ifndef XPFILE
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# define XPFILE "GNU_BISON:[000000]BISON.SIMPLE"
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# endif
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# ifndef XPFILE1
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# define XPFILE1 "GNU_BISON:[000000]BISON.HAIRY"
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# endif
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#endif
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#if defined (_MSC_VER)
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# ifndef XPFILE
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# define XPFILE "c:/usr/local/lib/bison.simple"
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# endif
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# ifndef XPFILE1
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# define XPFILE1 "c:/usr/local/lib/bison.hairy"
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# endif
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#endif
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#include "getargs.h"
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#include "files.h"
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#include "alloc.h"
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#include "gram.h"
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#include "complain.h"
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FILE *finput = NULL;
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FILE *foutput = NULL;
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FILE *fdefines = NULL;
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FILE *ftable = NULL;
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FILE *fattrs = NULL;
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FILE *fguard = NULL;
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FILE *faction = NULL;
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FILE *fparser = NULL;
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/* File name specified with -o for the output file, or 0 if no -o. */
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char *spec_outfile;
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char *infile;
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char *attrsfile;
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static char *outfile;
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static char *defsfile;
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static char *tabfile;
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static char *guardfile;
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static char *actfile;
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static char *tmpattrsfile;
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static char *tmptabfile;
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static char *tmpdefsfile;
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extern char *mktemp (); /* So the compiler won't complain */
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extern char *getenv ();
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int fixed_outfiles = 0;
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extern char *program_name;
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static char *
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stringappend (const char *string1, int end1, const char *string2)
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{
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register char *ostring;
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register char *cp;
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register const char *cp1;
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register int i;
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cp1 = string2;
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i = 0;
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while (*cp1++)
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i++;
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ostring = NEW2 (i + end1 + 1, char);
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cp = ostring;
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cp1 = string1;
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for (i = 0; i < end1; i++)
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*cp++ = *cp1++;
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cp1 = string2;
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while ((*cp++ = *cp1++))
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;
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return ostring;
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}
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/*-----------------------------------------------------------------.
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| Try to open file NAME with mode MODE, and print an error message |
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| if fails. |
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`-----------------------------------------------------------------*/
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static FILE *
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xfopen (const char *name, const char *mode)
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{
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FILE *ptr;
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ptr = fopen (name, mode);
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if (!ptr)
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error (2, errno, _("cannot open file `%s'"), name);
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return ptr;
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}
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/*-------------------------------------------------------------.
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| Try to close file PTR, and print an error message if fails. |
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`-------------------------------------------------------------*/
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static int
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xfclose (FILE *ptr)
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{
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int result;
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if (ptr == NULL)
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return 0;
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result = fclose (ptr);
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if (result == EOF)
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error (2, errno, _("cannot close file"));
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return result;
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}
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/* JF this has been hacked to death. Nowaday it sets up the file names for
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the output files, and opens the tmp files and the parser */
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void
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open_files (void)
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{
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char *name_base;
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#ifdef MSDOS
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register char *cp;
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#endif
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char *filename;
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int base_length;
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int short_base_length;
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#if defined (VMS) & !defined (__VMS_POSIX)
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const char *tmp_base = "sys$scratch:b_";
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#else
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const char *tmp_base = "/tmp/b.";
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#endif
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int tmp_len;
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#ifdef MSDOS
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tmp_base = getenv ("TMP");
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if (tmp_base == 0)
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tmp_base = "";
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strlwr (infile);
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#endif /* MSDOS */
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#if (defined(_WIN32) && !defined(__CYGWIN32__))
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tmp_base = getenv ("TEMP"); /* Windows95 defines this ... */
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if (tmp_base == 0)
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tmp_base = getenv ("Temp"); /* ... while NT prefers this */
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if (tmp_base == 0)
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tmp_base = "";
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strlwr (infile);
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#endif /* _WIN32 && !__CYGWIN32__ */
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#if (defined(unix) || defined(__unix) || defined(__unix__) || defined(__EMX__))
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{
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char *tmp_ptr = getenv ("TMPDIR");
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if (tmp_ptr != 0)
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tmp_base = stringappend (tmp_ptr, strlen (tmp_ptr), "/b.");
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}
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#endif /* unix || __unix || __unix__ */
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tmp_len = strlen (tmp_base);
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if (spec_outfile)
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{
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/* -o was specified. The precise -o name will be used for ftable.
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For other output files, remove the ".c" or ".tab.c" suffix. */
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name_base = spec_outfile;
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#ifdef MSDOS
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strlwr (name_base);
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#endif /* MSDOS */
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/* BASE_LENGTH includes ".tab" but not ".c". */
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base_length = strlen (name_base);
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if (!strcmp (name_base + base_length - 2, ".c"))
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base_length -= 2;
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/* SHORT_BASE_LENGTH includes neither ".tab" nor ".c". */
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short_base_length = base_length;
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if (!strncmp (name_base + short_base_length - 4, ".tab", 4))
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short_base_length -= 4;
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else if (!strncmp (name_base + short_base_length - 4, "_tab", 4))
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short_base_length -= 4;
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}
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else if (spec_file_prefix)
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{
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/* -b was specified. Construct names from it. */
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/* SHORT_BASE_LENGTH includes neither ".tab" nor ".c". */
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short_base_length = strlen (spec_file_prefix);
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/* Count room for `.tab'. */
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base_length = short_base_length + 4;
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name_base = (char *) xmalloc (base_length + 1);
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/* Append `.tab'. */
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strcpy (name_base, spec_file_prefix);
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#ifdef VMS
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strcat (name_base, "_tab");
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#else
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strcat (name_base, ".tab");
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#endif
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#ifdef MSDOS
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strlwr (name_base);
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#endif /* MSDOS */
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}
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else
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{
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/* -o was not specified; compute output file name from input
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or use y.tab.c, etc., if -y was specified. */
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static char FIXED_NAME_BASE[] = "y.y";
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name_base = fixed_outfiles ? FIXED_NAME_BASE : infile;
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/* BASE_LENGTH gets length of NAME_BASE, sans ".y" suffix if any. */
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base_length = strlen (name_base);
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if (!strcmp (name_base + base_length - 2, ".y"))
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base_length -= 2;
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short_base_length = base_length;
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#ifdef VMS
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name_base = stringappend (name_base, short_base_length, "_tab");
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#else
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#ifdef MSDOS
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name_base = stringappend (name_base, short_base_length, "_tab");
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#else
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name_base = stringappend (name_base, short_base_length, ".tab");
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#endif /* not MSDOS */
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#endif
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base_length = short_base_length + 4;
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}
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finput = xfopen (infile, "r");
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if (!noparserflag)
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{
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filename = getenv ("BISON_SIMPLE");
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#ifdef MSDOS
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/* File doesn't exist in current directory; try in INIT directory. */
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cp = getenv ("INIT");
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if (filename == 0 && cp != NULL)
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{
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filename = xmalloc (strlen (cp) + strlen (PFILE) + 2);
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strcpy (filename, cp);
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cp = filename + strlen (filename);
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*cp++ = '/';
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strcpy (cp, PFILE);
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}
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#endif /* MSDOS */
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fparser = xfopen (filename ? filename : PFILE, "r");
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}
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if (verboseflag)
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{
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#ifdef MSDOS
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outfile = stringappend (name_base, short_base_length, ".out");
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#else
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/* We used to use just .out if spec_name_prefix (-p) was used,
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but that conflicts with Posix. */
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outfile = stringappend (name_base, short_base_length, ".output");
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#endif
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foutput = xfopen (outfile, "w");
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}
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if (noparserflag)
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{
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/* use permanent name for actions file */
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actfile = stringappend (name_base, short_base_length, ".act");
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faction = xfopen (actfile, "w");
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}
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#ifdef MSDOS
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if (!noparserflag)
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actfile = mktemp (stringappend (tmp_base, tmp_len, "acXXXXXX"));
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tmpattrsfile = mktemp (stringappend (tmp_base, tmp_len, "atXXXXXX"));
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tmptabfile = mktemp (stringappend (tmp_base, tmp_len, "taXXXXXX"));
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tmpdefsfile = mktemp (stringappend (tmp_base, tmp_len, "deXXXXXX"));
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#else
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if (!noparserflag)
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actfile = mktemp (stringappend (tmp_base, tmp_len, "act.XXXXXX"));
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tmpattrsfile = mktemp (stringappend (tmp_base, tmp_len, "attrs.XXXXXX"));
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tmptabfile = mktemp (stringappend (tmp_base, tmp_len, "tab.XXXXXX"));
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tmpdefsfile = mktemp (stringappend (tmp_base, tmp_len, "defs.XXXXXX"));
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#endif /* not MSDOS */
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if (!noparserflag)
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faction = xfopen (actfile, "w+");
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fattrs = xfopen (tmpattrsfile, "w+");
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ftable = xfopen (tmptabfile, "w+");
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if (definesflag)
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{
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defsfile = stringappend (name_base, base_length, ".h");
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fdefines = xfopen (tmpdefsfile, "w+");
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}
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#if !(defined (MSDOS) || (defined(_WIN32) && !defined(__CYGWIN32__)))
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if (!noparserflag)
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unlink (actfile);
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unlink (tmpattrsfile);
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unlink (tmptabfile);
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unlink (tmpdefsfile);
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#endif /* MSDOS || (_WIN32 && !__CYGWIN32__) */
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/* These are opened by `done' or `open_extra_files', if at all */
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if (spec_outfile)
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tabfile = spec_outfile;
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else
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tabfile = stringappend (name_base, base_length, ".c");
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#ifdef VMS
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attrsfile = stringappend (name_base, short_base_length, "_stype.h");
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guardfile = stringappend (name_base, short_base_length, "_guard.c");
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#else
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#ifdef MSDOS
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attrsfile = stringappend (name_base, short_base_length, ".sth");
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guardfile = stringappend (name_base, short_base_length, ".guc");
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#else
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attrsfile = stringappend (name_base, short_base_length, ".stype.h");
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guardfile = stringappend (name_base, short_base_length, ".guard.c");
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#endif /* not MSDOS */
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#endif /* not VMS */
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}
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/*--------------------------------------------------------------------.
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| Open the output files needed only for the semantic parser. This |
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| is done when %semantic_parser is seen in the declarations section. |
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`--------------------------------------------------------------------*/
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void
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open_extra_files (void)
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{
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FILE *ftmp;
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int c;
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char *filename;
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#ifdef MSDOS
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char *cp;
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#endif
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xfclose (fparser);
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if (!noparserflag)
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{
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filename = (char *) getenv ("BISON_HAIRY");
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#ifdef MSDOS
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/* File doesn't exist in current directory; try in INIT directory. */
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cp = getenv ("INIT");
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if (filename == 0 && cp != NULL)
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{
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filename = xmalloc (strlen (cp) + strlen (PFILE1) + 2);
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strcpy (filename, cp);
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cp = filename + strlen (filename);
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*cp++ = '/';
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strcpy (cp, PFILE1);
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}
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#endif
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fparser = xfopen (filename ? filename : PFILE1, "r");
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}
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/* JF change from inline attrs file to separate one */
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ftmp = xfopen (attrsfile, "w");
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rewind (fattrs);
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while ((c = getc (fattrs)) != EOF) /* Thank god for buffering */
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putc (c, ftmp);
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xfclose (fattrs);
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fattrs = ftmp;
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fguard = xfopen (guardfile, "w");
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}
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void
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done (void)
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{
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xfclose (faction);
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xfclose (fattrs);
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xfclose (fguard);
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xfclose (finput);
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xfclose (fparser);
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xfclose (foutput);
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/* JF write out the output file */
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if (!complain_message_count && ftable)
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{
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FILE *ftmp;
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register int c;
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ftmp = xfopen (tabfile, "w");
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rewind (ftable);
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while ((c = getc (ftable)) != EOF)
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putc (c, ftmp);
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xfclose (ftmp);
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xfclose (ftable);
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if (definesflag)
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{
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ftmp = xfopen (defsfile, "w");
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fflush (fdefines);
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rewind (fdefines);
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while ((c = getc (fdefines)) != EOF)
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putc (c, ftmp);
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xfclose (ftmp);
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xfclose (fdefines);
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}
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}
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#if defined (VMS) & !defined (__VMS_POSIX)
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if (faction && !noparserflag)
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delete (actfile);
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if (fattrs)
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delete (tmpattrsfile);
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if (ftable)
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delete (tmptabfile);
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/* Don't call exit again, we're in atexit ().
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if (!complain_message_count)
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sys$exit(SS$_NORMAL);
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sys$exit(SS$_ABORT); */
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#else
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#if (defined (MSDOS) || (defined(_WIN32) && !defined(__CYGWIN32__)))
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if (actfile && !noparserflag)
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unlink (actfile);
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if (tmpattrsfile)
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unlink (tmpattrsfile);
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if (tmptabfile)
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unlink (tmptabfile);
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if (tmpdefsfile)
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unlink (tmpdefsfile);
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#endif /* MSDOS || (_WIN32 && !__CYGWIN32__) */
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/* Don't call exit again, we're in atexit ().
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exit (complain_message_count ? 1 : 0); */
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#endif /* not VMS, or __VMS_POSIX */
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}
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