/* Open and close files for bison,
- Copyright (C) 1984, 1986, 1989 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, 675 Mass Ave, Cambridge, MA 02139, 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. */
-#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"
+#include "system.h"
+
+#if defined (VMS) & !defined (__VMS_POSIX)
+# ifndef BISON_SIMPLE
+# define BISON_SIMPLE "GNU_BISON:[000000]BISON.SIMPLE"
+# endif
+# ifndef BISON_HAIRY
+# define BISON_HARIRY "GNU_BISON:[000000]BISON.HAIRY"
+# endif
#endif
+
+#if defined (_MSC_VER)
+# ifndef BISON_SIMPLE
+# define BISON_SIMPLE "c:/usr/local/lib/bison.simple"
+# endif
+# ifndef BISON_HAIRY
+# define BISON_HAIRY "c:/usr/local/lib/bison.hairy"
+# endif
#endif
-#include <stdio.h>
-#include "system.h"
+#include "getargs.h"
#include "files.h"
-#include "new.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 char *mktemp(); /* So the compiler won't complain */
-extern char *getenv();
-extern void perror();
-FILE *tryopen(); /* This might be a good idea */
-void done();
+
+static char *outfile;
+static char *defsfile;
+static char *tabfile;
+static char *guardfile;
+static char *actfile;
+
+extern char *getenv ();
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;
+static char *
+stringappend (const char *string1, int end1, const char *string2)
{
register char *ostring;
- register char *cp, *cp1;
+ register char *cp;
+ register const char *cp1;
register int i;
- cp = string2; i = 0;
- while (*cp++) i++;
+ cp1 = string2;
+ i = 0;
+ while (*cp1++)
+ i++;
- ostring = NEW2(i+end1+1, char);
+ ostring = XCALLOC (char, i + end1 + 1);
cp = ostring;
cp1 = string1;
*cp++ = *cp1++;
cp1 = string2;
- while (*cp++ = *cp1++) ;
+ while ((*cp++ = *cp1++))
+ ;
return ostring;
}
+/*-----------------------------------------------------------------.
+| Try to open file NAME with mode MODE, and print an error message |
+| if fails. |
+`-----------------------------------------------------------------*/
+
+static FILE *
+xfopen (const char *name, const char *mode)
+{
+ 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"));
+
+ 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
+ const char *cp;
+
+ /* 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 (!res)
+ res = skeleton;
+
+ return res;
+}
+
+\f
+/*-----------------------------------------------------------------.
+| Open the input file. Look for the skeletons. Find the names of |
+| the output files. Prepare the obstacks. |
+`-----------------------------------------------------------------*/
-/* 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()
+open_files (void)
{
char *name_base;
+#ifdef MSDOS
register char *cp;
- char *filename;
+#endif
int base_length;
int short_base_length;
-#ifdef VMS
- char *tmp_base = "sys$scratch:b_";
+#if defined (VMS) & !defined (__VMS_POSIX)
+ const char *tmp_base = "sys$scratch:b_";
#else
- char *tmp_base = "/tmp/b.";
+ const char *tmp_base = "/tmp/b.";
#endif
int tmp_len;
strlwr (infile);
#endif /* MSDOS */
+#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__ */
+
+#if (defined(unix) || defined(__unix) || defined(__unix__) || defined(__EMX__))
+ {
+ char *tmp_ptr = getenv ("TMPDIR");
+
+ if (tmp_ptr != 0)
+ tmp_base = stringappend (tmp_ptr, strlen (tmp_ptr), "/b.");
+ }
+#endif /* unix || __unix || __unix__ */
+
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. */
+ /* -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
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. */
+
+ static char FIXED_NAME_BASE[] = "y.y";
- name_base = fixed_outfiles ? "y.y" : infile;
+ name_base = yacc_flag ? FIXED_NAME_BASE : infile;
/* BASE_LENGTH gets length of NAME_BASE, sans ".y" suffix if any. */
short_base_length = base_length;
#ifdef VMS
- name_base = stringappend(name_base, short_base_length, "_tab");
+ name_base = stringappend (name_base, short_base_length, "_tab");
#else
#ifdef MSDOS
- name_base = stringappend(name_base, short_base_length, "_tab");
+ name_base = stringappend (name_base, short_base_length, "_tab");
#else
- name_base = stringappend(name_base, short_base_length, ".tab");
+ name_base = stringappend (name_base, short_base_length, ".tab");
#endif /* not MSDOS */
#endif
base_length = short_base_length + 4;
}
- finput = tryopen(infile, "r");
+ finput = xfopen (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 (!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");
+ 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");
+ but that conflicts with Posix. */
+ outfile = stringappend (name_base, short_base_length, ".output");
#endif
- foutput = tryopen(outfile, "w");
+ foutput = xfopen (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)
+ if (no_parser_flag)
{
- defsfile = stringappend(name_base, base_length, ".h");
- fdefines = tryopen(tmpdefsfile, "w+");
+ /* use permanent name for actions file */
+ actfile = stringappend (name_base, short_base_length, ".act");
}
-#ifndef MSDOS
- unlink(actfile);
- unlink(tmpattrsfile);
- unlink(tmptabfile);
- unlink(tmpdefsfile);
-#endif
+ if (defines_flag)
+ {
+ defsfile = stringappend (name_base, base_length, ".h");
+ }
- /* 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");
+ 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");
+ 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");
+ attrsfile = stringappend (name_base, short_base_length, ".stype.h");
+ guardfile = stringappend (name_base, short_base_length, ".guard.c");
#endif /* not MSDOS */
#endif /* not VMS */
+
+ /* 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()
+open_extra_files (void)
{
- 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");
+ xfclose (fparser);
+ if (!no_parser_flag)
+ fparser = xfopen (skeleton_find ("BISON_HAIRY", BISON_HAIRY), "r");
+ fguard = xfopen (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;
-}
+/*-----------------------------------------------------.
+| Close the open files, produce all the output files. |
+`-----------------------------------------------------*/
void
-done(k)
-int k;
+output_files (void)
{
- 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 */
+ 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