/* Open and close files for bison,
- Copyright (C) 1984, 1986, 1989, 1992, 2000 Free Software Foundation, Inc.
+ Copyright 1984, 1986, 1989, 1992, 2000 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
#include "system.h"
#if defined (VMS) & !defined (__VMS_POSIX)
-# include <ssdef.h>
-# define unlink delete
-# ifndef XPFILE
-# define XPFILE "GNU_BISON:[000000]BISON.SIMPLE"
+# ifndef BISON_SIMPLE
+# define BISON_SIMPLE "GNU_BISON:[000000]BISON.SIMPLE"
# endif
-# ifndef XPFILE1
-# define XPFILE1 "GNU_BISON:[000000]BISON.HAIRY"
+# ifndef BISON_HAIRY
+# define BISON_HARIRY "GNU_BISON:[000000]BISON.HAIRY"
# endif
#endif
#if defined (_MSC_VER)
-# ifndef XPFILE
-# define XPFILE "c:/usr/local/lib/bison.simple"
+# ifndef BISON_SIMPLE
+# define BISON_SIMPLE "c:/usr/local/lib/bison.simple"
# endif
-# ifndef XPFILE1
-# define XPFILE1 "c:/usr/local/lib/bison.hairy"
+# ifndef BISON_HAIRY
+# define BISON_HAIRY "c:/usr/local/lib/bison.hairy"
# endif
#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;
static char *tabfile;
static char *guardfile;
static char *actfile;
-static char *tmpattrsfile;
-static char *tmptabfile;
-static char *tmpdefsfile;
-
-extern char *mktemp(); /* So the compiler won't complain */
-extern char *getenv();
-
-extern char *stringappend PARAMS((const char *, int, const char *));
-extern void openfiles PARAMS((void));
-extern void open_extra_files PARAMS((void));
-int fixed_outfiles = 0;
+extern char *getenv ();
extern char *program_name;
\f
-char *
+static char *
stringappend (const char *string1, int end1, const char *string2)
{
register char *ostring;
cp1 = string2;
i = 0;
- while (*cp1++) i++;
+ while (*cp1++)
+ i++;
- ostring = NEW2(i+end1+1, char);
+ ostring = XCALLOC (char, i + end1 + 1);
cp = ostring;
cp1 = string1;
`-----------------------------------------------------------------*/
static FILE *
-tryopen (const char *name, const char *mode)
+xfopen (const char *name, const char *mode)
{
- FILE *ptr;
+ FILE *ptr;
ptr = fopen (name, mode);
if (!ptr)
`-------------------------------------------------------------*/
static int
-tryclose (FILE *ptr)
+xfclose (FILE *ptr)
{
int result;
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
-/* 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 */
+/*-----------------------------------------------------------------.
+| Open the input file. Look for the skeletons. Find the names of |
+| the output files. Prepare the obstacks. |
+`-----------------------------------------------------------------*/
+
void
-openfiles (void)
+open_files (void)
{
char *name_base;
#ifdef MSDOS
register char *cp;
#endif
- char *filename;
int base_length;
int short_base_length;
#endif /* MSDOS */
#if (defined(_WIN32) && !defined(__CYGWIN32__))
- tmp_base = getenv ("TEMP"); /* Windows95 defines this ... */
+ tmp_base = getenv ("TEMP"); /* Windows95 defines this ... */
if (tmp_base == 0)
- tmp_base = getenv ("Temp"); /* ... while NT prefers this */
+ tmp_base = getenv ("Temp"); /* ... while NT prefers this */
if (tmp_base == 0)
tmp_base = "";
strlwr (infile);
#if (defined(unix) || defined(__unix) || defined(__unix__) || defined(__EMX__))
{
- char *tmp_ptr = getenv("TMPDIR");
+ char *tmp_ptr = getenv ("TMPDIR");
if (tmp_ptr != 0)
tmp_base = stringappend (tmp_ptr, strlen (tmp_ptr), "/b.");
}
-#endif /* unix || __unix || __unix__ */
+#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 ? FIXED_NAME_BASE : 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");
- 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");
+ 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");
}
- 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");
+ 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);
}
void
open_extra_files (void)
{
- FILE *ftmp;
- int c;
- char *filename;
-#ifdef MSDOS
- char *cp;
-#endif
-
- tryclose(fparser);
+ xfclose (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;
+ if (!no_parser_flag)
+ fparser = xfopen (skeleton_find ("BISON_HAIRY", BISON_HAIRY), "r");
+ fguard = xfopen (guardfile, "w");
+}
- fguard = tryopen(guardfile, "w");
-}
+/*-----------------------------------------------------.
+| 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