/* Output the generated parsing program for Bison.
Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004,
- 2005, 2006 Free Software Foundation, Inc.
+ 2005, 2006, 2007 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.
+ This program 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 3 of the License, 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.
+ This program 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., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include "system.h"
+#include <configmake.h>
#include <error.h>
#include <get-errno.h>
#include <quotearg.h>
/* Merger-function index (GLR). */
merger[r] = rules[r].merger;
}
- assert (i == nritems);
+ aver (i == nritems);
muscle_insert_item_number_table ("rhs", rhs, ritem[0], 1, nritems);
muscle_insert_unsigned_int_table ("prhs", prhs, 0, 0, nrules);
/* At this stage, if there are literal aliases, they are part of
SYMBOLS, so we should not find symbols which are the aliases
here. */
- assert (number != USER_NUMBER_ALIAS);
+ aver (number != USER_NUMBER_ALIAS);
/* Skip error token. */
if (sym == errtoken)
}
-/*---------------------------------------.
-| Output the symbol destructors to OUT. |
-`---------------------------------------*/
+/*---------------------------------------------------.
+| Output the symbol destructors or printers to OUT. |
+`---------------------------------------------------*/
static void
-symbol_destructors_output (FILE *out)
+symbol_code_props_output (FILE *out, char const *what,
+ code_props const *(*get)(symbol const *))
{
int i;
char const *sep = "";
- fputs ("m4_define([b4_symbol_destructors], \n[", out);
+ fputs ("m4_define([b4_symbol_", out);
+ fputs (what, out);
+ fputs ("], \n[", out);
for (i = 0; i < nsyms; ++i)
- if (symbol_destructor_get (symbols[i]))
- {
- symbol *sym = symbols[i];
-
- /* Filename, lineno,
- Symbol-name, Symbol-number,
- destructor, optional typename. */
- fprintf (out, "%s[", sep);
- sep = ",\n";
- escaped_output (out, symbol_destructor_location_get (sym).start.file);
- fprintf (out, ", %d, ",
- symbol_destructor_location_get (sym).start.line);
- escaped_output (out, sym->tag);
- fprintf (out, ", %d, [[%s]]", sym->number,
- symbol_destructor_get (sym));
- if (sym->type_name)
- fprintf (out, ", [[%s]]", sym->type_name);
- fputc (']', out);
- }
- fputs ("])\n\n", out);
-}
-
-
-/*------------------------------------.
-| Output the symbol printers to OUT. |
-`------------------------------------*/
-
-static void
-symbol_printers_output (FILE *out)
-{
- int i;
- char const *sep = "";
-
- fputs ("m4_define([b4_symbol_printers], \n[", out);
- for (i = 0; i < nsyms; ++i)
- if (symbol_printer_get (symbols[i]))
- {
- symbol *sym = symbols[i];
-
- /* Filename, lineno,
- Symbol-name, Symbol-number,
- printer, optional typename. */
- fprintf (out, "%s[", sep);
- sep = ",\n";
- escaped_output (out, symbol_printer_location_get (sym).start.file);
- fprintf (out, ", %d, ", symbol_printer_location_get (sym).start.line);
- escaped_output (out, sym->tag);
- fprintf (out, ", %d, [[%s]]", sym->number, symbol_printer_get (sym));
- if (sym->type_name)
- fprintf (out, ", [[%s]]", sym->type_name);
- fputc (']', out);
- }
+ {
+ symbol *sym = symbols[i];
+ char const *code = (*get) (sym)->code;
+ if (code)
+ {
+ location loc = (*get) (sym)->location;
+ /* Filename, lineno,
+ Symbol-name, Symbol-number,
+ code, optional typename. */
+ fprintf (out, "%s[", sep);
+ sep = ",\n";
+ escaped_output (out, loc.start.file);
+ fprintf (out, ", %d, ", loc.start.line);
+ escaped_output (out, sym->tag);
+ fprintf (out, ", %d, [[%s]]", sym->number, code);
+ if (sym->type_name)
+ fprintf (out, ", [[%s]]", sym->type_name);
+ fputc (']', out);
+ }
+ }
fputs ("])\n\n", out);
}
FILE *in;
FILE *out;
int filter_fd[2];
- char const *argv[6];
+ char const *argv[7];
pid_t pid;
/* Compute the names of the package data dir and skeleton file.
installation. A faulty installation can cause deadlock, so a
cheap sanity check is worthwhile. */
char const m4sugar[] = "m4sugar/m4sugar.m4";
+ char const m4bison[] = "bison.m4";
char *full_m4sugar;
+ char *full_m4bison;
char *full_skeleton;
char const *p;
char const *m4 = (p = getenv ("M4")) ? p : M4;
- char const *pkgdatadir = (p = getenv ("BISON_PKGDATADIR")) ? p : PKGDATADIR;
+ char const *pkgdatadir = compute_pkgdatadir ();
size_t skeleton_size = strlen (skeleton) + 1;
size_t pkgdatadirlen = strlen (pkgdatadir);
while (pkgdatadirlen && pkgdatadir[pkgdatadirlen - 1] == '/')
full_skeleton = xmalloc (pkgdatadirlen + 1
+ (skeleton_size < sizeof m4sugar
? sizeof m4sugar : skeleton_size));
- strcpy (full_skeleton, pkgdatadir);
+ strncpy (full_skeleton, pkgdatadir, pkgdatadirlen);
full_skeleton[pkgdatadirlen] = '/';
strcpy (full_skeleton + pkgdatadirlen + 1, m4sugar);
full_m4sugar = xstrdup (full_skeleton);
- strcpy (full_skeleton + pkgdatadirlen + 1, skeleton);
+ strcpy (full_skeleton + pkgdatadirlen + 1, m4bison);
+ full_m4bison = xstrdup (full_skeleton);
+ if (strchr (skeleton, '/'))
+ strcpy (full_skeleton, skeleton);
+ else
+ strcpy (full_skeleton + pkgdatadirlen + 1, skeleton);
xfclose (xfopen (full_m4sugar, "r"));
/* Create an m4 subprocess connected to us via two pipes. */
if (trace_flag & trace_tools)
- fprintf (stderr, "running: %s %s - %s\n",
- m4, full_m4sugar, full_skeleton);
+ fprintf (stderr, "running: %s %s - %s %s\n",
+ m4, full_m4sugar, full_m4bison, full_skeleton);
argv[0] = m4;
argv[1] = full_m4sugar;
argv[2] = "-";
- argv[3] = full_skeleton;
- argv[4] = trace_flag & trace_m4 ? "-dV" : NULL;
- argv[5] = NULL;
+ argv[3] = full_m4bison;
+ argv[4] = full_skeleton;
+ argv[5] = trace_flag & trace_m4 ? "-dV" : NULL;
+ argv[6] = NULL;
init_subpipe ();
pid = create_subpipe (argv, filter_fd);
+ free (full_m4bison);
free (full_m4sugar);
free (full_skeleton);
user_actions_output (out);
merger_output (out);
token_definitions_output (out);
- symbol_destructors_output (out);
- symbol_printers_output (out);
+ symbol_code_props_output (out, "destructors", &symbol_destructor_get);
+ symbol_code_props_output (out, "printers", &symbol_printer_get);
muscles_m4_output (out);
-
- fputs ("m4_wrap([m4_divert_pop(0)])\n", out);
- fputs ("m4_divert_push(0)dnl\n", out);
xfclose (out);
/* Read and process m4's output. */
static void
prepare (void)
{
+ /* BISON_USE_PUSH_FOR_PULL is for the test suite and should not be documented
+ for the user. */
+ char const *use_push_for_pull_env = getenv ("BISON_USE_PUSH_FOR_PULL");
+ bool use_push_for_pull_flag = false;
+ if (use_push_for_pull_env != NULL
+ && use_push_for_pull_env[0] != '\0'
+ && 0 != strcmp (use_push_for_pull_env, "0"))
+ use_push_for_pull_flag = true;
+
/* Flags. */
MUSCLE_INSERT_BOOL ("debug_flag", debug_flag);
MUSCLE_INSERT_BOOL ("defines_flag", defines_flag);
MUSCLE_INSERT_BOOL ("error_verbose_flag", error_verbose);
+ MUSCLE_INSERT_BOOL ("glr_flag", glr_parser);
MUSCLE_INSERT_BOOL ("locations_flag", locations_flag);
+ MUSCLE_INSERT_BOOL ("nondeterministic_flag", nondeterministic_parser);
MUSCLE_INSERT_BOOL ("pure_flag", pure_parser);
MUSCLE_INSERT_BOOL ("synclines_flag", !no_lines_flag);
MUSCLE_INSERT_BOOL ("tag_seen_flag", tag_seen);
+ MUSCLE_INSERT_BOOL ("use_push_for_pull_flag", use_push_for_pull_flag);
MUSCLE_INSERT_BOOL ("yacc_flag", yacc_flag);
/* File names. */
- MUSCLE_INSERT_STRING ("prefix", spec_name_prefix ? spec_name_prefix : "yy");
+ if (spec_name_prefix)
+ MUSCLE_INSERT_STRING ("prefix", spec_name_prefix);
+
+ MUSCLE_INSERT_STRING ("file_name_all_but_ext", all_but_ext);
+
#define DEFINE(Name) MUSCLE_INSERT_STRING (#Name, Name ? Name : "")
DEFINE (dir_prefix);
DEFINE (parser_file_name);
DEFINE (spec_verbose_file);
#undef DEFINE
- /* User Code. */
- obstack_1grow (&pre_prologue_obstack, 0);
- obstack_1grow (&post_prologue_obstack, 0);
- muscle_insert ("pre_prologue", obstack_finish (&pre_prologue_obstack));
- muscle_insert ("post_prologue", obstack_finish (&post_prologue_obstack));
-
- /* Find the right skeleton file. */
- if (!skeleton)
- {
- if (glr_parser || nondeterministic_parser)
- skeleton = "glr.c";
- else
- skeleton = "yacc.c";
- }
+ /* Find the right skeleton file, and add muscles about the skeletons. */
+ if (skeleton)
+ MUSCLE_INSERT_C_STRING ("skeleton", skeleton);
+ else
+ skeleton = language->skeleton;
- /* About the skeletons. */
+ /* About the skeletons. */
{
- char const *pkgdatadir = getenv ("BISON_PKGDATADIR");
- MUSCLE_INSERT_STRING ("pkgdatadir", pkgdatadir ? pkgdatadir : PKGDATADIR);
- MUSCLE_INSERT_C_STRING ("skeleton", skeleton);
+ /* b4_pkgdatadir is used inside m4_include in the skeletons, so digraphs
+ would never be expanded. Hopefully no one has M4-special characters in
+ his Bison installation path. */
+ MUSCLE_INSERT_STRING_RAW ("pkgdatadir", compute_pkgdatadir ());
}
}
output_skeleton ();
obstack_free (&format_obstack, NULL);
- obstack_free (&pre_prologue_obstack, NULL);
- obstack_free (&post_prologue_obstack, NULL);
+}
+
+char const *
+compute_pkgdatadir (void)
+{
+ char const *pkgdatadir = getenv ("BISON_PKGDATADIR");
+ return pkgdatadir ? pkgdatadir : PKGDATADIR;
}
projects / bison.git / blobdiff