X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/93ba6bf344389e00b3f8b5a0cb06226d32b8b275..8cdabf02eaeb9a225c82013b37057398e07f1912:/src/output.c diff --git a/src/output.c b/src/output.c index 789b2f03..8457ba19 100644 --- a/src/output.c +++ b/src/output.c @@ -1,48 +1,48 @@ -/* Output the generated parsing program for bison, - Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002 - Free Software Foundation, Inc. +/* Output the generated parsing program for Bison. + + Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004, + 2005, 2006, 2007, 2008 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., 59 Temple Place - Suite 330, Boston, MA - 02111-1307, USA. */ - + along with this program. If not, see . */ +#include #include "system.h" -#include "quotearg.h" -#include "error.h" -#include "subpipe.h" -#include "getargs.h" + +#include +#include +#include +#include +#include +#include + +#include "complain.h" #include "files.h" +#include "getargs.h" #include "gram.h" -#include "complain.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" -#include "muscle_tab.h" - -/* From src/scan-skel.l. */ -void scan_skel (FILE *); static struct obstack format_obstack; -int error_verbose = 0; - - /*-------------------------------------------------------------------. | Create a function NAME which associates to the muscle NAME the | @@ -55,7 +55,7 @@ int error_verbose = 0; #define GENERATE_MUSCLE_INSERT_TABLE(Name, Type) \ \ static void \ -Name (const char *name, \ +Name (char const *name, \ Type *table_data, \ Type first, \ int begin, \ @@ -63,6 +63,8 @@ Name (const char *name, \ { \ Type min = first; \ Type max = first; \ + long int lmin; \ + long int lmax; \ int i; \ int j = 1; \ \ @@ -86,38 +88,37 @@ Name (const char *name, \ obstack_1grow (&format_obstack, 0); \ muscle_insert (name, obstack_finish (&format_obstack)); \ \ + lmin = min; \ + lmax = max; \ /* Build `NAME_min' and `NAME_max' in the obstack. */ \ obstack_fgrow1 (&format_obstack, "%s_min", name); \ obstack_1grow (&format_obstack, 0); \ - MUSCLE_INSERT_LONG_INT (obstack_finish (&format_obstack), \ - (long int) min); \ + MUSCLE_INSERT_LONG_INT (obstack_finish (&format_obstack), lmin); \ obstack_fgrow1 (&format_obstack, "%s_max", name); \ obstack_1grow (&format_obstack, 0); \ - MUSCLE_INSERT_LONG_INT (obstack_finish (&format_obstack), \ - (long int) max); \ + MUSCLE_INSERT_LONG_INT (obstack_finish (&format_obstack), lmax); \ } GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_unsigned_int_table, unsigned int) GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_int_table, int) -GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_short_table, short) -GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_base_table, base_t) -GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_rule_number_table, rule_number_t) -GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_symbol_number_table, symbol_number_t) -GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_item_number_table, item_number_t) -GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_state_number_table, state_number_t) +GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_base_table, base_number) +GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_rule_number_table, rule_number) +GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_symbol_number_table, symbol_number) +GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_item_number_table, item_number) +GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_state_number_table, state_number) -/*----------------------------------------------------------------------. -| Print to OUT a representation of FILENAME escaped both for C and M4. | -`----------------------------------------------------------------------*/ +/*--------------------------------------------------------------------. +| Print to OUT a representation of STRING escaped both for C and M4. | +`--------------------------------------------------------------------*/ static void -escaped_file_name_output (FILE *out, char const *filename) +escaped_output (FILE *out, char const *string) { char const *p; fprintf (out, "[["); - for (p = quotearg_style (c_quoting_style, filename); *p; p++) + for (p = quotearg_style (c_quoting_style, string); *p; p++) switch (*p) { case '$': fputs ("$][", out); break; @@ -139,6 +140,7 @@ escaped_file_name_output (FILE *out, char const *filename) 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); @@ -152,31 +154,33 @@ prepare_symbols (void) /* tname -- token names. */ { int i; - int j = 0; + /* We assume that the table will be output starting at column 2. */ + int j = 2; + struct quoting_options *qo = clone_quoting_options (0); + set_quoting_style (qo, c_quoting_style); + set_quoting_flags (qo, QA_SPLIT_TRIGRAPHS); for (i = 0; i < nsyms; i++) { - /* Be sure not to use twice the same QUOTEARG slot: - SYMBOL_TAG_GET uses slot 0. */ - const char *cp = - quotearg_n_style (1, c_quoting_style, - symbols[i]->tag); - /* Width of the next token, including the two quotes, the comma - and the space. */ - int strsize = strlen (cp) + 2; - - if (j + strsize > 75) + char *cp = quotearg_alloc (symbols[i]->tag, -1, qo); + /* Width of the next token, including the two quotes, the + comma and the space. */ + int width = strlen (cp) + 2; + + if (j + width > 75) { - obstack_sgrow (&format_obstack, "\n "); - j = 2; + obstack_sgrow (&format_obstack, "\n "); + j = 1; } + if (i) + obstack_1grow (&format_obstack, ' '); MUSCLE_OBSTACK_SGROW (&format_obstack, cp); - obstack_sgrow (&format_obstack, ", "); - j += strsize; + free (cp); + 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"); + free (qo); + obstack_sgrow (&format_obstack, " ]b4_null["); /* Finish table and store. */ obstack_1grow (&format_obstack, 0); @@ -186,7 +190,7 @@ prepare_symbols (void) /* Output YYTOKNUM. */ { int i; - int *values = XCALLOC (int, ntokens); + int *values = xnmalloc (ntokens, sizeof *values); for (i = 0; i < ntokens; ++i) values[i] = symbols[i]->user_token_number; muscle_insert_int_table ("toknum", values, @@ -204,19 +208,19 @@ prepare_symbols (void) static void prepare_rules (void) { - rule_number_t r; + rule_number r; unsigned int i = 0; - item_number_t *rhs = XMALLOC (item_number_t, nritems); - unsigned int *prhs = XMALLOC (unsigned int, nrules); - unsigned int *rline = XMALLOC (unsigned int, nrules); - symbol_number_t *r1 = XMALLOC (symbol_number_t, nrules); - unsigned int *r2 = XMALLOC (unsigned int, nrules); - short *dprec = XMALLOC (short, nrules); - short *merger = XMALLOC (short, nrules); + item_number *rhs = xnmalloc (nritems, sizeof *rhs); + unsigned int *prhs = xnmalloc (nrules, sizeof *prhs); + unsigned int *rline = xnmalloc (nrules, sizeof *rline); + symbol_number *r1 = xnmalloc (nrules, sizeof *r1); + unsigned int *r2 = xnmalloc (nrules, sizeof *r2); + int *dprec = xnmalloc (nrules, sizeof *dprec); + int *merger = xnmalloc (nrules, sizeof *merger); for (r = 0; r < nrules; ++r) { - item_number_t *rhsp = NULL; + item_number *rhsp = NULL; /* Index of rule R in RHS. */ prhs[r] = i; /* RHS of the rule R. */ @@ -229,23 +233,24 @@ prepare_rules (void) /* Separator in RHS. */ rhs[i++] = -1; /* Line where rule was defined. */ - rline[r] = rules[r].location.first_line; + rline[r] = rules[r].location.start.line; /* Dynamic precedence (GLR). */ dprec[r] = rules[r].dprec; /* 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); muscle_insert_unsigned_int_table ("rline", rline, 0, 0, nrules); muscle_insert_symbol_number_table ("r1", r1, 0, 0, nrules); muscle_insert_unsigned_int_table ("r2", r2, 0, 0, nrules); - muscle_insert_short_table ("dprec", dprec, 0, 0, nrules); - muscle_insert_short_table ("merger", merger, 0, 0, nrules); + muscle_insert_int_table ("dprec", dprec, 0, 0, nrules); + muscle_insert_int_table ("merger", merger, 0, 0, nrules); MUSCLE_INSERT_INT ("rules_number", nrules); + MUSCLE_INSERT_INT ("max_left_semantic_context", max_left_semantic_context); free (rhs); free (prhs); @@ -263,13 +268,13 @@ prepare_rules (void) static void prepare_states (void) { - state_number_t i; - symbol_number_t *values = - (symbol_number_t *) alloca (sizeof (symbol_number_t) * nstates); + state_number i; + symbol_number *values = xnmalloc (nstates, sizeof *values); for (i = 0; i < nstates; ++i) values[i] = states[i]->accessing_symbol; muscle_insert_symbol_number_table ("stos", values, 0, 1, nstates); + free (values); MUSCLE_INSERT_INT ("last", high); MUSCLE_INSERT_INT ("final_state_number", final_state->number); @@ -278,6 +283,31 @@ prepare_states (void) +/*-----------------------------------------------. +| For each symbol type, its tags and type name. | +`-----------------------------------------------*/ + +static void +type_names_output (FILE *out) +{ + int i; + char const *sep = ""; + + fputs ("m4_define([b4_type_names],\n[", out); + for (i = 0; i < nsyms; ++i) + { + symbol *sym = symbols[i]; + /* Symbol-name, Symbol-number, optional typename. */ + fprintf (out, "%s[", i ? ",\n" : ""); + escaped_output (out, sym->tag); + fprintf (out, ", %d, [[%s]]]", + sym->number, + sym->type_name ? sym->type_name : ""); + } + fputs ("])\n\n", out); +} + + /*---------------------------------. | Output the user actions to OUT. | `---------------------------------*/ @@ -285,22 +315,18 @@ prepare_states (void) static void user_actions_output (FILE *out) { - rule_number_t r; + 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]], ", - rules[r].action_location.first_line); - escaped_file_name_output (out, rules[r].action_location.file); - fprintf (out, ")[\n"); - fprintf (out, " %s\n break;\n\n", - rules[r].action); + 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[ %s]])\n\n", rules[r].action); } - fputs ("]])\n\n", out); + fputs ("])\n\n", out); } /*--------------------------------------. @@ -317,10 +343,10 @@ merger_output (FILE *out) for (n = 1, p = merge_functions; p != NULL; n += 1, p = p->next) { if (p->type[0] == '\0') - fprintf (out, " case %d: yyval = %s (*yy0, *yy1); break;\n", + fprintf (out, " case %d: *yy0 = %s (*yy0, *yy1); break;\n", n, p->name); else - fprintf (out, " case %d: yyval.%s = %s (*yy0, *yy1); break;\n", + fprintf (out, " case %d: yy0->%s = %s (*yy0, *yy1); break;\n", n, p->type, p->name); } fputs ("]])\n\n", out); @@ -334,114 +360,82 @@ static void token_definitions_output (FILE *out) { int i; - int first = 1; + char const *sep = ""; fputs ("m4_define([b4_tokens], \n[", out); for (i = 0; i < ntokens; ++i) { - symbol_t *symbol = symbols[i]; - int number = symbol->user_token_number; + symbol *sym = symbols[i]; + int number = sym->user_token_number; /* 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 (symbol == errtoken) + if (sym == errtoken) continue; /* If this string has an alias, then it is necessarily the alias which is to be output. */ - if (symbol->alias) - symbol = symbol->alias; + if (sym->alias) + sym = sym->alias; /* Don't output literal chars or strings (when defined only as a string). Note that must be done after the alias resolution: think about `%token 'f' "f"'. */ - if (symbol->tag[0] == '\'' || symbol->tag[0] == '\"') + if (sym->tag[0] == '\'' || sym->tag[0] == '\"') continue; /* Don't #define nonliteral tokens whose names contain periods or '$' (as does the default value of the EOF token). */ - if (strchr (symbol->tag, '.') || strchr (symbol->tag, '$')) + if (strchr (sym->tag, '.') || strchr (sym->tag, '$')) continue; - fprintf (out, "%s[[[%s]], [%d]]", - first ? "" : ",\n", symbol->tag, number); - - first = 0; + fprintf (out, "%s[[[%s]], %d]", + sep, sym->tag, number); + sep = ",\n"; } fputs ("])\n\n", out); } -/*---------------------------------------. -| 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; - int first = 1; + 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 (symbols[i]->destructor) - { - symbol_t *symbol = symbols[i]; - - /* Filename, lineno, - Symbol-name, Symbol-number, - destructor, typename. */ - fprintf (out, "%s[", - first ? "" : ",\n"); - escaped_file_name_output (out, symbol->destructor_location.file); - fprintf (out, ", [[%d]], [[%s]], [[%d]], [[%s]], [[%s]]]", - symbol->destructor_location.first_line, - symbol->tag, - symbol->number, - symbol->destructor, - symbol->type_name); - - first = 0; - } - fputs ("])\n\n", out); -} - - -/*------------------------------------. -| Output the symbol printers to OUT. | -`------------------------------------*/ - -static void -symbol_printers_output (FILE *out) -{ - int i; - int first = 1; - - fputs ("m4_define([b4_symbol_printers], \n[", out); - for (i = 0; i < nsyms; ++i) - if (symbols[i]->destructor) - { - symbol_t *symbol = symbols[i]; - - /* Filename, lineno, - Symbol-name, Symbol-number, - printer, typename. */ - fprintf (out, "%s[", - first ? "" : ",\n"); - escaped_file_name_output (out, symbol->printer_location.file); - fprintf (out, ", [[%d]], [[%s]], [[%d]], [[%s]], [[%s]]]", - symbol->printer_location.first_line, - symbol->tag, - symbol->number, - symbol->printer, - symbol->type_name); - - first = 0; - } + { + 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); } @@ -490,9 +484,8 @@ prepare_actions (void) muscle_insert_unsigned_int_table ("conflict_list_heads", conflict_table, conflict_table[0], 1, high + 1); muscle_insert_unsigned_int_table ("conflicting_rules", conflict_list, - conflict_list[0], 1, conflict_list_cnt); + 0, 1, conflict_list_cnt); } - /*---------------------------. | Call the skeleton parser. | @@ -504,73 +497,117 @@ output_skeleton (void) FILE *in; FILE *out; int filter_fd[2]; - char const *argv[7]; + char const *argv[9]; pid_t pid; - /* Compute the names of the package data dir and skeleton file. - Test whether m4sugar.m4 is readable, to check for proper - installation. A faulty installation can cause deadlock, so a - cheap sanity check is worthwhile. */ + /* Compute the names of the package data dir and skeleton files. */ char const m4sugar[] = "m4sugar/m4sugar.m4"; - char *full_path; + 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] == '/') pkgdatadirlen--; - full_path = xmalloc (pkgdatadirlen + 1 - + (skeleton_size < sizeof m4sugar - ? sizeof m4sugar : skeleton_size)); - strcpy (full_path, pkgdatadir); - full_path[pkgdatadirlen] = '/'; - strcpy (full_path + pkgdatadirlen + 1, m4sugar); - xfclose (xfopen (full_path, "r")); - strcpy (full_path + pkgdatadirlen + 1, skeleton); + full_skeleton = xmalloc (pkgdatadirlen + 1 + + (skeleton_size < sizeof m4sugar + ? sizeof m4sugar : skeleton_size)); + strncpy (full_skeleton, pkgdatadir, pkgdatadirlen); + full_skeleton[pkgdatadirlen] = '/'; + strcpy (full_skeleton + pkgdatadirlen + 1, m4sugar); + full_m4sugar = xstrdup (full_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); + + /* Test whether m4sugar.m4 is readable, to check for proper + installation. A faulty installation can cause deadlock, so a + cheap sanity check is worthwhile. */ + xfclose (xfopen (full_m4sugar, "r")); /* Create an m4 subprocess connected to us via two pipes. */ if (trace_flag & trace_tools) - fprintf (stderr, "running: %s -I %s %s - %s\n", - m4, pkgdatadir, m4sugar, full_path); + fprintf (stderr, "running: %s %s - %s %s\n", + m4, full_m4sugar, full_m4bison, full_skeleton); - argv[0] = m4; - argv[1] = "-I"; - argv[2] = pkgdatadir; - argv[3] = m4sugar; - argv[4] = "-"; - argv[5] = full_path; - argv[6] = NULL; + /* Some future version of GNU M4 (most likely 1.6) may treat the -dV in a + position-dependent manner. Keep it as the first argument so that all + files are traced. + See the thread starting at + + for details. */ + { + int i = 0; + argv[i++] = m4; + argv[i++] = "-I"; + argv[i++] = pkgdatadir; + if (trace_flag & trace_m4) + argv[i++] = "-dV"; + argv[i++] = full_m4sugar; + argv[i++] = "-"; + argv[i++] = full_m4bison; + argv[i++] = full_skeleton; + argv[i++] = NULL; + } + /* When POSIXLY_CORRECT is set, some future versions of GNU M4 (most likely + 2.0) may drop some of the GNU extensions that Bison's skeletons depend + upon. So that the next release of Bison is forward compatible with those + future versions of GNU M4, we unset POSIXLY_CORRECT here. + + FIXME: A user might set POSIXLY_CORRECT to affect processes run from + macros like m4_syscmd in a custom skeleton. For now, Bison makes no + promises about the behavior of custom skeletons, so this scenario is not a + concern. However, we eventually want to eliminate this shortcoming. The + next release of GNU M4 (1.4.12 or 1.6) will accept the -g command-line + option as a no-op, and later releases will accept it to indicate that + POSIXLY_CORRECT should be ignored. Once the GNU M4 versions that accept + -g are pervasive, Bison should use -g instead of unsetting + POSIXLY_CORRECT. + + See the thread starting at + + for details. */ + unsetenv ("POSIXLY_CORRECT"); init_subpipe (); pid = create_subpipe (argv, filter_fd); - free (full_path); + free (full_m4sugar); + free (full_m4bison); + free (full_skeleton); out = fdopen (filter_fd[0], "w"); if (! out) - error (EXIT_FAILURE, errno, "fdopen"); + error (EXIT_FAILURE, get_errno (), + "fdopen"); /* Output the definitions of all the muscles. */ fputs ("m4_init()\n", out); + type_names_output (out); 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. */ timevar_push (TV_M4); + end_of_output_subpipe (pid, filter_fd); in = fdopen (filter_fd[1], "r"); if (! in) - error (EXIT_FAILURE, errno, "fdopen"); + error (EXIT_FAILURE, get_errno (), + "fdopen"); scan_skel (in); xfclose (in); reap_subpipe (pid, m4); @@ -580,34 +617,57 @@ output_skeleton (void) 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_INT ("debug", debug_flag); - MUSCLE_INSERT_INT ("defines_flag", defines_flag); - MUSCLE_INSERT_INT ("error_verbose", error_verbose); - MUSCLE_INSERT_INT ("locations_flag", locations_flag); - MUSCLE_INSERT_INT ("pure", pure_parser); - MUSCLE_INSERT_INT ("synclines_flag", !no_lines_flag); + 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 ("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"); - - /* 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) - skeleton = "glr.c"; - else - skeleton = "yacc.c"; - } - - /* Parse the skeleton file and output the needed parsers. */ - MUSCLE_INSERT_C_STRING ("skeleton", skeleton); + 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 + + /* 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. */ + { + /* 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 ()); + } } @@ -631,6 +691,11 @@ output (void) 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; }