/* Output the generated parsing program for Bison.
- Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004, 2005
- Free Software Foundation, Inc.
+ Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004,
+ 2005, 2006 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA. */
-
+#include <config.h>
#include "system.h"
+#include <configmake.h>
#include <error.h>
#include <get-errno.h>
#include <quotearg.h>
#include "muscle_tab.h"
#include "output.h"
#include "reader.h"
+#include "scan-code.h" /* max_left_semantic_context */
+#include "scan-skel.h"
#include "symtab.h"
#include "tables.h"
-/* From src/scan-skel.l. */
-void scan_skel (FILE *);
-
static struct obstack format_obstack;
-bool error_verbose = false;
-
-
/*-------------------------------------------------------------------.
| Create a function NAME which associates to the muscle NAME the |
static void
prepare_symbols (void)
{
+ MUSCLE_INSERT_BOOL ("token_table", token_table_flag);
MUSCLE_INSERT_INT ("tokens_number", ntokens);
MUSCLE_INSERT_INT ("nterms_number", nvars);
MUSCLE_INSERT_INT ("undef_token_number", undeftoken->number);
obstack_1grow (&format_obstack, ',');
j += width;
}
- /* Add a NULL entry to list of tokens (well, 0, as NULL might not be
- defined). */
- obstack_sgrow (&format_obstack, " 0");
+ obstack_sgrow (&format_obstack, " ]b4_null[");
/* Finish table and store. */
obstack_1grow (&format_obstack, 0);
/* Merger-function index (GLR). */
merger[r] = rules[r].merger;
}
- if (i != nritems)
- abort ();
+ aver (i == nritems);
muscle_insert_item_number_table ("rhs", rhs, ritem[0], 1, nritems);
muscle_insert_unsigned_int_table ("prhs", prhs, 0, 0, nrules);
{
rule_number r;
- fputs ("m4_define([b4_actions], \n[[", out);
+ fputs ("m4_define([b4_actions], \n[", out);
for (r = 0; r < nrules; ++r)
if (rules[r].action)
{
- fprintf (out, " case %d:\n", r + 1);
-
- fprintf (out, "]b4_syncline(%d, ",
+ fprintf (out, "b4_case(%d, [b4_syncline(%d, ", r + 1,
rules[r].action_location.start.line);
escaped_output (out, rules[r].action_location.start.file);
- fprintf (out, ")[\n");
- fprintf (out, " %s\n break;\n\n",
- rules[r].action);
+ fprintf (out, ")\n[ %s]])\n\n", rules[r].action);
}
- fputs ("]])\n\n", out);
+ fputs ("])\n\n", out);
}
/*--------------------------------------.
/* At this stage, if there are literal aliases, they are part of
SYMBOLS, so we should not find symbols which are the aliases
here. */
- if (number == USER_NUMBER_ALIAS)
- abort ();
+ aver (number != USER_NUMBER_ALIAS);
/* Skip error token. */
if (sym == errtoken)
fputs ("m4_define([b4_symbol_destructors], \n[", out);
for (i = 0; i < nsyms; ++i)
- if (symbols[i]->destructor)
+ if (symbol_destructor_get (symbols[i]))
{
symbol *sym = symbols[i];
destructor, optional typename. */
fprintf (out, "%s[", sep);
sep = ",\n";
- escaped_output (out, sym->destructor_location.start.file);
- fprintf (out, ", %d, ", sym->destructor_location.start.line);
+ 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, sym->destructor);
+ fprintf (out, ", %d, [[%s]]", sym->number,
+ symbol_destructor_get (sym));
if (sym->type_name)
fprintf (out, ", [[%s]]", sym->type_name);
fputc (']', out);
fputs ("m4_define([b4_symbol_printers], \n[", out);
for (i = 0; i < nsyms; ++i)
- if (symbols[i]->printer)
+ if (symbol_printer_get (symbols[i]))
{
symbol *sym = symbols[i];
printer, optional typename. */
fprintf (out, "%s[", sep);
sep = ",\n";
- escaped_output (out, sym->printer_location.start.file);
- fprintf (out, ", %d, ", sym->printer_location.start.line);
+ 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, sym->printer);
+ fprintf (out, ", %d, [[%s]]", sym->number, symbol_printer_get (sym));
if (sym->type_name)
fprintf (out, ", [[%s]]", sym->type_name);
fputc (']', out);
prepare_actions (void)
{
/* Figure out the actions for the specified state, indexed by
- look-ahead token type. */
+ lookahead token type. */
muscle_insert_rule_number_table ("defact", yydefact,
yydefact[0], 1, nstates);
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_cm4;
+ char *full_m4bison;
char *full_skeleton;
char const *p;
char const *m4 = (p = getenv ("M4")) ? p : M4;
full_skeleton[pkgdatadirlen] = '/';
strcpy (full_skeleton + pkgdatadirlen + 1, m4sugar);
full_m4sugar = xstrdup (full_skeleton);
- strcpy (full_skeleton + pkgdatadirlen + 1, "c.m4");
- full_cm4 = xstrdup (full_skeleton);
+ strcpy (full_skeleton + pkgdatadirlen + 1, m4bison);
+ full_m4bison = xstrdup (full_skeleton);
strcpy (full_skeleton + pkgdatadirlen + 1, skeleton);
xfclose (xfopen (full_m4sugar, "r"));
if (trace_flag & trace_tools)
fprintf (stderr, "running: %s %s - %s %s\n",
- m4, full_m4sugar, full_cm4, full_skeleton);
+ m4, full_m4sugar, full_m4bison, full_skeleton);
argv[0] = m4;
argv[1] = full_m4sugar;
argv[2] = "-";
- argv[3] = full_cm4;
+ argv[3] = full_m4bison;
argv[4] = full_skeleton;
- argv[5] = NULL;
+ 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_cm4);
free (full_skeleton);
out = fdopen (filter_fd[0], "w");
if (! out)
- error (EXIT_FAILURE, get_errno (), "fdopen");
+ error (EXIT_FAILURE, get_errno (),
+ "fdopen");
/* Output the definitions of all the muscles. */
fputs ("m4_init()\n", out);
/* Read and process m4's output. */
timevar_push (TV_M4);
+ end_of_output_subpipe (pid, filter_fd);
in = fdopen (filter_fd[1], "r");
if (! in)
- error (EXIT_FAILURE, get_errno (), "fdopen");
+ error (EXIT_FAILURE, get_errno (),
+ "fdopen");
scan_skel (in);
xfclose (in);
reap_subpipe (pid, m4);
prepare (void)
{
/* Flags. */
- MUSCLE_INSERT_BOOL ("debug", debug_flag);
+ MUSCLE_INSERT_BOOL ("debug_flag", debug_flag);
MUSCLE_INSERT_BOOL ("defines_flag", defines_flag);
- MUSCLE_INSERT_BOOL ("error_verbose", error_verbose);
+ 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 ("pure", pure_parser);
+ MUSCLE_INSERT_BOOL ("nondeterministic_flag", nondeterministic_parser);
+ MUSCLE_INSERT_BOOL ("pure_flag", pure_parser);
+ MUSCLE_INSERT_BOOL ("push_flag", push_parser);
MUSCLE_INSERT_BOOL ("synclines_flag", !no_lines_flag);
+ MUSCLE_INSERT_BOOL ("tag_seen_flag", tag_seen);
+ 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_defines_file);
+ DEFINE (spec_file_prefix);
+ DEFINE (spec_graph_file);
+ DEFINE (spec_name_prefix);
+ DEFINE (spec_outfile);
+ DEFINE (spec_verbose_file);
+#undef DEFINE
/* User Code. */
obstack_1grow (&pre_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;
- /* Parse the skeleton file and output the needed parsers. */
- MUSCLE_INSERT_C_STRING ("skeleton", skeleton);
+ /* About the skeletons. */
+ {
+ char const *pkgdatadir = getenv ("BISON_PKGDATADIR");
+ /* 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",
+ pkgdatadir ? pkgdatadir : PKGDATADIR);
+ }
}
projects / bison.git / blobdiff