/* Open and close files for bison,
- Copyright (C) 1984, 1986, 1989, 1992 Free Software Foundation, Inc.
+ Copyright 1984, 1986, 1989, 1992, 2000 Free Software Foundation, Inc.
-This file is part of Bison, the GNU Compiler Compiler.
+ 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 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.
+ 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, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+ 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, Inc., 59 Temple Place - Suite 330, Boston, MA
+ 02111-1307, USA. */
#include "system.h"
-
-#if defined (VMS) & !defined (__VMS_POSIX)
-#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
-
-#if defined (_MSC_VER)
-#ifndef XPFILE
-#define XPFILE "c:/usr/local/lib/bison.simple"
-#endif
-#ifndef XPFILE1
-#define XPFILE1 "c:/usr/local/lib/bison.hairy"
-#endif
-#endif
-
-#include <stdio.h>
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
+#include "getargs.h"
#include "files.h"
-#include "alloc.h"
+#include "xalloc.h"
#include "gram.h"
#include "complain.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;
+struct obstack action_obstack;
+struct obstack attrs_obstack;
+struct obstack table_obstack;
+struct obstack defines_obstack;
+
/* 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 int noparserflag;
-
-extern char *mktemp(); /* So the compiler won't complain */
-extern char *getenv();
-
-char *stringappend PARAMS((char *, int, char *));
-void openfiles PARAMS((void));
-void open_extra_files PARAMS((void));
-FILE *tryopen PARAMS((char *, char *)); /* This might be a good idea */
-int tryclose PARAMS((FILE *));
-
-extern char *program_name;
-extern int verboseflag;
-extern int definesflag;
-int fixed_outfiles = 0;
+
+static char *outfile;
+static char *defsfile;
+static char *tabfile;
+static char *guardfile;
+static char *actfile;
\f
+/*-----------------------------------------------------------------.
+| Return a newly allocated string composed of the concatenation of |
+| the END1 first chars of STRING1, and STRING2. |
+`-----------------------------------------------------------------*/
-char *
-stringappend (char *string1, int end1, char *string2)
+static char *
+stringappend (const char *string1, int end1, const char *string2)
{
- register char *ostring;
- register char *cp, *cp1;
- register int i;
+ char *res;
+ char *cp;
+ const char *cp1;
+ int i;
- cp = string2; i = 0;
- while (*cp++) i++;
+ cp1 = string2;
+ i = 0;
+ while (*cp1++)
+ i++;
- ostring = NEW2(i+end1+1, char);
+ res = XCALLOC (char, i + end1 + 1);
- cp = ostring;
+ cp = res;
cp1 = string1;
for (i = 0; i < end1; i++)
*cp++ = *cp1++;
while ((*cp++ = *cp1++))
;
- return ostring;
+ return res;
}
+/*-----------------------------------------------------------------.
+| Try to open file NAME with mode MODE, and print an error message |
+| if fails. |
+`-----------------------------------------------------------------*/
-/* 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 (void)
+static FILE *
+xfopen (const char *name, const char *mode)
{
- char *name_base;
-#ifdef MSDOS
- register char *cp;
-#endif
- char *filename;
- int base_length;
- int short_base_length;
+ FILE *ptr;
+
+ ptr = fopen (name, mode);
+ if (!ptr)
+ error (2, errno, _("cannot open file `%s'"), name);
+
+ return ptr;
+}
+
+/*-------------------------------------------------------------.
+| Try to close file PTR, and print an error message if fails. |
+`-------------------------------------------------------------*/
+
+static int
+xfclose (FILE *ptr)
+{
+ int result;
+
+ if (ptr == NULL)
+ return 0;
+
+ result = fclose (ptr);
+ if (result == EOF)
+ error (2, errno, _("cannot close file"));
-#if defined (VMS) & !defined (__VMS_POSIX)
- char *tmp_base = "sys$scratch:b_";
-#else
- char *tmp_base = "/tmp/b.";
-#endif
- int tmp_len;
+ return result;
+}
+
+/*--------------------------------------------------.
+| Save the content of the obstack OBS in FILENAME. |
+`--------------------------------------------------*/
+
+static void
+obstack_save (struct obstack *obs, const char *filename)
+{
+ FILE *out = xfopen (filename, "w");
+ size_t size = obstack_object_size (obs);
+ fwrite (obstack_finish (obs), 1, size, out);
+ xfclose (out);
+}
+
+
+static const char *
+skeleton_find (const char *envvar, const char *skeleton)
+{
+ const char *res = getenv (envvar);
#ifdef MSDOS
- tmp_base = getenv ("TMP");
- if (tmp_base == 0)
- tmp_base = "";
- strlwr (infile);
-#endif /* MSDOS */
+ const char *cp;
-#if (defined(_WIN32) && !defined(__CYGWIN32__))
- tmp_base = getenv ("TEMP"); /* Windows95 defines this ... */
- if (tmp_base == 0)
- tmp_base = getenv ("Temp"); /* ... while NT prefers this */
- if (tmp_base == 0)
- tmp_base = "";
- strlwr (infile);
-#endif /* _WIN32 && !__CYGWIN32__ */
+ /* File doesn't exist in current directory; try in INIT directory. */
+ if (!res && (cp = getenv ("INIT")))
+ {
+ res = XMALLOC (char, strlen (cp) + strlen (skeleton) + 2);
+ sprintf (res, "%s%c%s", cp, '/', skeleton);
+ }
+#endif /* !MSDOS */
-#if (defined(unix) || defined(__unix) || defined(__unix__) || defined(__EMX__))
- {
- char *tmp_ptr = getenv("TMPDIR");
+ if (!res)
+ res = skeleton;
- if (tmp_ptr != 0)
- tmp_base = stringappend (tmp_ptr, strlen (tmp_ptr), "/b.");
- }
-#endif /* unix || __unix || __unix__ */
+ return res;
+}
+
+\f
+/*-----------------------------------------------------------------.
+| Open the input file. Look for the skeletons. Find the names of |
+| the output files. Prepare the obstacks. |
+`-----------------------------------------------------------------*/
- tmp_len = strlen (tmp_base);
+void
+open_files (void)
+{
+ char *name_base;
+ int base_length;
+ int short_base_length;
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. */
+ /* -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);
short_base_length = strlen (spec_file_prefix);
/* Count room for `.tab'. */
base_length = short_base_length + 4;
- name_base = (char *) xmalloc (base_length + 1);
+ name_base = XMALLOC (char, base_length + 1);
/* Append `.tab'. */
strcpy (name_base, spec_file_prefix);
-#ifdef VMS
- strcat (name_base, "_tab");
-#else
- strcat (name_base, ".tab");
-#endif
+ strcat (name_base, EXT_TAB);
#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. */
+ or use y.tab.c, etc., if -y was specified. */
- name_base = fixed_outfiles ? "y.y" : infile;
+ static char FIXED_NAME_BASE[] = "y.y";
+
+ name_base = yacc_flag ? FIXED_NAME_BASE : infile;
/* BASE_LENGTH gets length of NAME_BASE, sans ".y" suffix if any. */
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
+ name_base = stringappend (name_base, short_base_length, EXT_TAB);
base_length = short_base_length + 4;
}
- finput = tryopen(infile, "r");
+ finput = xfopen (infile, "r");
- if (! noparserflag)
- {
- 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 (!no_parser_flag)
+ fparser = xfopen (skeleton_find ("BISON_SIMPLE", BISON_SIMPLE), "r");
- if (verboseflag)
+ if (verbose_flag)
{
-#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");
+ but that conflicts with Posix. */
+ outfile = stringappend (name_base, short_base_length, EXT_OUTPUT);
+ foutput = xfopen (outfile, "w");
}
- if (noparserflag)
+ if (no_parser_flag)
{
/* use permanent name for actions file */
- actfile = stringappend(name_base, short_base_length, ".act");
- faction = tryopen(actfile, "w");
+ actfile = stringappend (name_base, short_base_length, ".act");
}
-#ifdef MSDOS
- if (! noparserflag)
- 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
- if (! noparserflag)
- 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 */
-
- if (! noparserflag)
- faction = tryopen(actfile, "w+");
- fattrs = tryopen(tmpattrsfile,"w+");
- ftable = tryopen(tmptabfile, "w+");
-
- if (definesflag)
+ if (defines_flag)
{
- defsfile = stringappend(name_base, base_length, ".h");
- fdefines = tryopen(tmpdefsfile, "w+");
+ defsfile = stringappend (name_base, base_length, ".h");
}
-#if !(defined (MSDOS) || (defined(_WIN32) && !defined(__CYGWIN32__)))
- if (! noparserflag)
- unlink(actfile);
- unlink(tmpattrsfile);
- unlink(tmptabfile);
- unlink(tmpdefsfile);
-#endif /* MSDOS || (_WIN32 && !__CYGWIN32__) */
-
- /* These are opened by `done' or `open_extra_files', if at all */
+ /* 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");
+ 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 */
+ attrsfile = stringappend (name_base, short_base_length, EXT_STYPE_H);
+ guardfile = stringappend (name_base, short_base_length, EXT_GUARD_C);
+
+ /* Initialize the obstacks. */
+ obstack_init (&action_obstack);
+ obstack_init (&attrs_obstack);
+ obstack_init (&table_obstack);
+ obstack_init (&defines_obstack);
}
-/* open the output files needed only for the semantic parser.
-This is done when %semantic_parser is seen in the declarations section. */
+/*--------------------------------------------------------------------.
+| 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 (void)
{
- FILE *ftmp;
- int c;
- char *filename;
-#ifdef MSDOS
- char *cp;
-#endif
-
- tryclose(fparser);
-
- if (! noparserflag)
- {
- 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);
- tryclose(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 (char *name, char *mode)
-{
- FILE *ptr;
-
- ptr = fopen (name, mode);
- if (!ptr)
- error (2, errno, _("cannot open file `%s'"), name);
+ xfclose (fparser);
- return ptr;
+ if (!no_parser_flag)
+ fparser = xfopen (skeleton_find ("BISON_HAIRY", BISON_HAIRY), "r");
+ fguard = xfopen (guardfile, "w");
}
-int
-tryclose (FILE *ptr)
-{
- int result;
- if (ptr == NULL)
- return 0;
-
- result = fclose (ptr);
- if (result == EOF)
- error (2, errno, _("cannot close file"));
-
- return result;
-}
+/*-----------------------------------------------------.
+| Close the open files, produce all the output files. |
+`-----------------------------------------------------*/
void
-done (void)
+output_files (void)
{
- tryclose(faction);
- tryclose(fattrs);
- tryclose(fguard);
- tryclose(finput);
- tryclose(fparser);
- tryclose(foutput);
-
- /* JF write out the output file */
- if (!complain_message_count && ftable)
- {
- FILE *ftmp;
- register int c;
-
- ftmp=tryopen(tabfile, "w");
- rewind(ftable);
- while((c=getc(ftable)) != EOF)
- putc(c,ftmp);
- tryclose(ftmp);
- tryclose(ftable);
-
- if (definesflag)
- {
- ftmp = tryopen(defsfile, "w");
- fflush(fdefines);
- rewind(fdefines);
- while((c=getc(fdefines)) != EOF)
- putc(c,ftmp);
- tryclose(ftmp);
- tryclose(fdefines);
- }
- }
-
-#if defined (VMS) & !defined (__VMS_POSIX)
- if (faction && ! noparserflag)
- delete(actfile);
- if (fattrs)
- delete(tmpattrsfile);
- if (ftable)
- delete(tmptabfile);
-/* Don't call exit again, we're in atexit ().
- if (!complain_message_count)
- sys$exit(SS$_NORMAL);
- sys$exit(SS$_ABORT); */
-#else
-#if (defined (MSDOS) || (defined(_WIN32) && !defined(__CYGWIN32__)))
- if (actfile && ! noparserflag) unlink(actfile);
- if (tmpattrsfile) unlink(tmpattrsfile);
- if (tmptabfile) unlink(tmptabfile);
- if (tmpdefsfile) unlink(tmpdefsfile);
-#endif /* MSDOS || (_WIN32 && !__CYGWIN32__) */
-/* Don't call exit again, we're in atexit ().
- exit (complain_message_count ? 1 : 0); */
-#endif /* not VMS, or __VMS_POSIX */
+ xfclose (fguard);
+ xfclose (finput);
+ xfclose (fparser);
+ xfclose (foutput);
+
+ /* Output the main file. */
+ obstack_save (&table_obstack, tabfile);
+
+ /* Output the header file if wanted. */
+ if (defines_flag)
+ obstack_save (&defines_obstack, defsfile);
+
+ /* If we output only the table, dump the actions in ACTFILE.
+ */
+ if (no_parser_flag)
+ obstack_save (&action_obstack, actfile);
+
+ /* If we produced a semantic parser ATTRS_OBSTACK must be dumped
+ into its own file, ATTTRSFILE. */
+ if (semantic_parser)
+ obstack_save (&attrs_obstack, attrsfile);
}
projects / bison.git / blobdiff