X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/ff61dabdbacfc6ea2737395756ea75e61ad1aa5a..64d15509b6b63eb620a6f8ab5c4c9cc4ffaaa304:/src/output.c diff --git a/src/output.c b/src/output.c index cf01416a..841ebe4f 100644 --- a/src/output.c +++ b/src/output.c @@ -1,5 +1,5 @@ /* Output the generated parsing program for bison, - Copyright 1984, 1986, 1989, 1992, 2000 Free Software Foundation, Inc. + Copyright 1984, 1986, 1989, 1992, 2000, 2001 Free Software Foundation, Inc. This file is part of Bison, the GNU Compiler Compiler. @@ -91,10 +91,8 @@ */ #include "system.h" -#include "obstack.h" #include "quotearg.h" #include "getargs.h" -#include "xalloc.h" #include "files.h" #include "gram.h" #include "LR0.h" @@ -103,228 +101,100 @@ #include "lalr.h" #include "reader.h" #include "conflicts.h" - -extern void berror PARAMS((const char *)); - +#include "muscle_tab.h" static int nvectors; static int nentries; -static short **froms; -static short **tos; -static short *tally; -static short *width; -static short *actrow; -static short *state_count; -static short *order; -static short *base; -static short *pos; -static short *table; -static short *check; +static short **froms = NULL; +static short **tos = NULL; +static short *tally = NULL; +static short *width = NULL; +static short *actrow = NULL; +static short *state_count = NULL; +static short *order = NULL; +static short *base = NULL; +static short *pos = NULL; +static short *table = NULL; +static short *check = NULL; static int lowzero; static int high; +struct obstack muscle_obstack; +struct obstack output_obstack; +int error_verbose = 0; -static inline void -output_short_or_char_table (struct obstack *oout, - const char *comment, - const char *type, - const char *table_name, - short *short_table, - short first_value, - short begin, short end) +/* Returns the number of lines of S. */ +static size_t +get_lines_number (const char *s) { - int i, j; + size_t lines = 0; + + size_t i; + for (i = 0; s[i]; ++i) + { + if (s[i] == '\n') + ++lines; + } + + return lines; +} - if (comment) - obstack_fgrow1 (oout, "/* %s. */\n", comment); - obstack_fgrow3 (oout, "static const %s %s[] =\n{\n %6d", - type, table_name, first_value); +/* FIXME. */ - j = 1; - for (i = begin; i < end; i++) +static inline void +output_table_data (struct obstack *oout, + short *table_data, + short first, + short begin, + short end) +{ + int i; + int j = 1; + + obstack_fgrow1 (oout, "%6d", first); + for (i = begin; i < end; ++i) { obstack_1grow (oout, ','); - if (j >= 10) { - obstack_grow_literal_string (oout, "\n "); + obstack_sgrow (oout, "\n "); j = 1; } else - { - j++; - } - - obstack_fgrow1 (oout, "%6d", short_table[i]); + ++j; + obstack_fgrow1 (oout, "%6d", table_data[i]); } - - obstack_grow_literal_string (oout, "\n};\n"); -} - - -static inline void -output_short_table (struct obstack *oout, - const char *comment, - const char *table_name, - short *short_table, - short first_value, - short begin, short end) -{ - output_short_or_char_table (oout, comment, "short", table_name, short_table, - first_value, begin, end); -} - - -/*--------------------------------------------------------------. -| output_headers -- Output constant strings to the beginning of | -| certain files. | -`--------------------------------------------------------------*/ - -/* Don't put the `%s' insides quotes, since it quotearg puts them. */ - -#define GUARDSTR \ -"\n\ -#include %s\n\ -extern int yyerror;\n\ -extern int yycost;\n\ -extern char * yymsg;\n\ -extern YYSTYPE yyval;\n\ -\n\ -yyguard(n, yyvsp, yylsp)\n\ -register int n;\n\ -register YYSTYPE *yyvsp;\n\ -register YYLTYPE *yylsp;\n\ -{\n\ - yyerror = 0;\n\ - yycost = 0;\n\ - yymsg = 0;\n\ - switch (n)\n\ - {" - -#define ACTSTR \ -"\n\ -#include %s\n\ -extern YYSTYPE yyval;\n\ -extern int yychar;\n\ -\n\ -yyaction(n, yyvsp, yylsp)\n\ -register int n;\n\ -register YYSTYPE *yyvsp;\n\ -register YYLTYPE *yylsp;\n\ -{\n\ - switch (n)\n\ - {" - -#define ACTSTR_SIMPLE "\n switch (yyn) {\n" - -void -output_headers (void) -{ - char *attrsfile_quoted = quotearg_style (c_quoting_style, attrsfile); - - if (semantic_parser) - fprintf (fguard, GUARDSTR, attrsfile_quoted); - - if (no_parser_flag) - return; - - if (semantic_parser) - obstack_fgrow1 (&action_obstack, ACTSTR, attrsfile_quoted); - else - obstack_grow_literal_string (&action_obstack, ACTSTR_SIMPLE); - -/* if (semantic_parser) JF moved this below - fprintf(ftable, "#include \"%s\"\n", attrsfile); - fprintf(ftable, "#include \n\n"); -*/ - - /* Rename certain symbols if -p was specified. */ - if (spec_name_prefix) - { - obstack_fgrow1 (&table_obstack, - "#define yyparse %sparse\n", spec_name_prefix); - obstack_fgrow1 (&table_obstack, - "#define yylex %slex\n", spec_name_prefix); - obstack_fgrow1 (&table_obstack, - "#define yyerror %serror\n", spec_name_prefix); - obstack_fgrow1 (&table_obstack, - "#define yylval %slval\n", spec_name_prefix); - obstack_fgrow1 (&table_obstack, - "#define yychar %schar\n", spec_name_prefix); - obstack_fgrow1 (&table_obstack, - "#define yydebug %sdebug\n", spec_name_prefix); - obstack_fgrow1 (&table_obstack, - "#define yynerrs %snerrs\n", spec_name_prefix); - } -} - - -/*-------------------------------------------------------. -| Output constant strings to the ends of certain files. | -`-------------------------------------------------------*/ - -void -output_trailers (void) -{ - if (semantic_parser) - fprintf (fguard, "\n }\n}\n"); - - obstack_1grow (&action_obstack, '\n'); - - if (no_parser_flag) - return; - - if (semantic_parser) - obstack_grow_literal_string (&action_obstack, " }\n"); - - obstack_grow_literal_string (&action_obstack, "}\n"); + obstack_1grow (oout, 0); } - static void output_token_translations (void) { - obstack_grow_literal_string (&table_obstack, "\ -\n\ -/* YYRANSLATE(YYLEX) -- Bison token number corresponding to YYLEX. */\n"); - - if (translations) - { - obstack_fgrow2 (&table_obstack, - "#define YYTRANSLATE(x) ((unsigned)(x) <= %d ? yytranslate[x] : %d)\ -\n\ -\n", - max_user_token_number, nsyms); - - output_short_or_char_table (&table_obstack, - "YYRANSLATE[YYLEX] -- Bison token number corresponding to YYLEX", - ntokens < 127 ? "char" : "short", - "yytranslate", token_translations, - 0, 1, max_user_token_number + 1); - } - else - { - obstack_grow_literal_string (&table_obstack, - "\n#define YYTRANSLATE(x) (x)\n"); - } + output_table_data (&output_obstack, token_translations, + 0, 1, max_user_token_number + 1); + muscle_insert ("translate", obstack_finish (&output_obstack)); + XFREE (token_translations); } static void output_gram (void) { - /* With the ordinary parser, - yyprhs and yyrhs are needed only for yydebug. */ - /* With the no_parser option, all tables are generated */ - if (!semantic_parser && !no_parser_flag) - obstack_grow_literal_string (&table_obstack, "\n#if YYDEBUG != 0\n"); + { + int i; + short *values = XCALLOC (short, nrules + 1); + for (i = 0; i < nrules + 1; ++i) + values[i] = rule_table[i].rhs; + output_table_data (&output_obstack, values, + 0, 1, nrules + 1); + XFREE (values); + } - output_short_table (&table_obstack, NULL, "yyprhs", rrhs, - 0, 1, nrules + 1); + muscle_insert ("prhs", obstack_finish (&output_obstack)); { size_t yyrhs_size = 1; @@ -338,21 +208,30 @@ output_gram (void) for (sp = ritem + 1, i = 1; *sp; ++sp, ++i) yyrhs[i] = *sp > 0 ? *sp : 0; - output_short_table (&table_obstack, NULL, "yyrhs", yyrhs, - ritem[0], 1, yyrhs_size); + output_table_data (&output_obstack, yyrhs, + ritem[0], 1, yyrhs_size); + muscle_insert ("rhs", obstack_finish (&output_obstack)); + XFREE (yyrhs); } - - if (!semantic_parser && !no_parser_flag) - obstack_grow_literal_string (&table_obstack, "\n#endif\n"); + +#if 0 + if (!semantic_parser) + obstack_sgrow (&table_obstack, "\n#endif\n"); +#endif } static void output_stos (void) { - output_short_table (&table_obstack, NULL, "yystos", accessing_symbol, - 0, 1, nstates); + int i; + short *values = (short *) alloca (sizeof (short) * nstates); + for (i = 0; i < nstates; ++i) + values[i] = state_table[i]->accessing_symbol; + output_table_data (&output_obstack, values, + 0, 1, nstates); + muscle_insert ("stos", obstack_finish (&output_obstack)); } @@ -363,142 +242,72 @@ output_rule_data (void) int j; short *short_tab = NULL; - obstack_grow_literal_string (&table_obstack, "\n\ -#if YYDEBUG != 0\n"); - - output_short_table (&table_obstack, - "YYRLINE[YYN] -- source line where rule number YYN was defined", - "yyrline", rline, - 0, 1, nrules + 1); - - obstack_grow_literal_string (&table_obstack, "#endif\n\n"); - - if (token_table_flag || no_parser_flag) - { - obstack_fgrow1 (&table_obstack, "#define YYNTOKENS %d\n", ntokens); - obstack_fgrow1 (&table_obstack, "#define YYNNTS %d\n", nvars); - obstack_fgrow1 (&table_obstack, "#define YYNRULES %d\n", nrules); - obstack_fgrow1 (&table_obstack, "#define YYNSTATES %d\n", nstates); - obstack_fgrow1 (&table_obstack, "#define YYMAXUTOK %d\n\n", - max_user_token_number); - } + { + short *values = XCALLOC (short, nrules + 1); + for (i = 0; i < nrules + 1; ++i) + values[i] = rule_table[i].line; + output_table_data (&output_obstack, values, + 0, 1, nrules + 1); + muscle_insert ("rline", obstack_finish (&output_obstack)); + XFREE (values); + } - /* Output the table of symbol names. */ - if (!token_table_flag && !no_parser_flag) - obstack_grow_literal_string (&table_obstack, - "\n#if YYDEBUG != 0 || defined YYERROR_VERBOSE\n\n"); - obstack_grow_literal_string (&table_obstack, "\ -/* YYTNAME[TOKEN_NUM] -- String name of the token TOKEN_NUM. */\n"); - obstack_grow_literal_string (&table_obstack, - "static const char *const yytname[] =\n{\n "); j = 0; for (i = 0; i < nsyms; i++) - /* this used to be i<=nsyms, but that output a final "" symbol - almost by accident */ { + /* Be sure not to use twice the same quotearg slot. */ + const char *cp = + quotearg_n_style (1, c_quoting_style, + quotearg_style (escape_quoting_style, tags[i])); /* Width of the next token, including the two quotes, the coma and the space. */ - int strsize = 4; - char *p; - - for (p = tags[i]; p && *p; p++) - if (*p == '"' || *p == '\\' || *p == '\n' || *p == '\t' - || *p == '\b') - strsize += 2; - else if (*p < 040 || *p >= 0177) - strsize += 4; - else - strsize++; + int strsize = strlen (cp) + 2; if (j + strsize > 75) { - obstack_grow_literal_string (&table_obstack, "\n "); + obstack_sgrow (&output_obstack, "\n "); j = 2; } - obstack_1grow (&table_obstack, '\"'); - for (p = tags[i]; p && *p; p++) - { - if (*p == '"' || *p == '\\') - { - obstack_fgrow1 (&table_obstack, "\\%c", *p); - } - else if (*p == '\n') - { - obstack_grow_literal_string (&table_obstack, "\\n"); - } - else if (*p == '\t') - { - obstack_grow_literal_string (&table_obstack, "\\t"); - } - else if (*p == '\b') - { - obstack_grow_literal_string (&table_obstack, "\\b"); - } - else if (*p < 040 || *p >= 0177) - { - obstack_fgrow1 (&table_obstack, "\\%03o", *p); - } - else - { - obstack_1grow (&table_obstack, *p); - } - } - - obstack_grow_literal_string (&table_obstack, "\", "); + obstack_sgrow (&output_obstack, cp); + obstack_sgrow (&output_obstack, ", "); j += strsize; } /* add a NULL entry to list of tokens */ - obstack_grow_literal_string (&table_obstack, "NULL\n};\n"); + obstack_sgrow (&output_obstack, "NULL"); - if (!token_table_flag && !no_parser_flag) - obstack_grow_literal_string (&table_obstack, "#endif\n\n"); + /* Finish table and store. */ + obstack_1grow (&output_obstack, 0); + muscle_insert ("tname", obstack_finish (&output_obstack)); /* Output YYTOKNUM. */ - if (token_table_flag) - { - output_short_table (&table_obstack, - "YYTOKNUM[YYLEX] -- Index in YYTNAME corresponding to YYLEX", - "yytoknum", user_toknums, - 0, 1, ntokens + 1); - } + output_table_data (&output_obstack, user_toknums, + 0, 1, ntokens + 1); + muscle_insert ("toknum", obstack_finish (&output_obstack)); /* Output YYR1. */ - output_short_table (&table_obstack, - "YYR1[YYN] -- Symbol number of symbol that rule YYN derives", - "yyr1", rlhs, - 0, 1, nrules + 1); - XFREE (rlhs + 1); - - obstack_1grow (&table_obstack, '\n'); + { + short *values = XCALLOC (short, nrules + 1); + for (i = 0; i < nrules + 1; ++i) + values[i] = rule_table[i].lhs; + output_table_data (&output_obstack, values, + 0, 1, nrules + 1); + muscle_insert ("r1", obstack_finish (&output_obstack)); + XFREE (values); + } /* Output YYR2. */ short_tab = XMALLOC (short, nrules + 1); for (i = 1; i < nrules; i++) - short_tab[i] = rrhs[i + 1] - rrhs[i] - 1; - short_tab[nrules] = nitems - rrhs[nrules] - 1; - output_short_table (&table_obstack, - "YYR2[YYN] -- Number of symbols composing right hand side of rule YYN", - "yyr2", short_tab, - 0, 1, nrules + 1); - obstack_1grow (&table_obstack, '\n'); - + short_tab[i] = rule_table[i + 1].rhs - rule_table[i].rhs - 1; + short_tab[nrules] = nitems - rule_table[nrules].rhs - 1; + output_table_data (&output_obstack, short_tab, + 0, 1, nrules + 1); + muscle_insert ("r2", obstack_finish (&output_obstack)); XFREE (short_tab); - - XFREE (rrhs + 1); } - -static void -output_defines (void) -{ - obstack_fgrow1 (&table_obstack, "\n\n#define\tYYFINAL\t\t%d\n", final_state); - obstack_fgrow1 (&table_obstack, "#define\tYYFLAG\t\t%d\n", MINSHORT); - obstack_fgrow1 (&table_obstack, "#define\tYYNTBASE\t%d\n", ntokens); -} - - /*------------------------------------------------------------------. | Decide what to do for each type of token if seen as the lookahead | | token in specified state. The value returned is used as the | @@ -521,15 +330,11 @@ action_row (int state) int k; int m = 0; int n = 0; - int count; int default_rule; int nreds; - int max; int rule; int shift_state; int symbol; - unsigned mask; - unsigned *wordp; reductions *redp; shifts *shiftp; errs *errp; @@ -540,7 +345,7 @@ action_row (int state) default_rule = 0; nreds = 0; - redp = reduction_table[state]; + redp = state_table[state]->reductions; if (redp) { @@ -550,69 +355,46 @@ action_row (int state) { /* loop over all the rules available here which require lookahead */ - m = lookaheads[state]; - n = lookaheads[state + 1]; + m = state_table[state]->lookaheads; + n = state_table[state + 1]->lookaheads; for (i = n - 1; i >= m; i--) - { - rule = -LAruleno[i]; - wordp = LA + i * tokensetsize; - mask = 1; - - /* and find each token which the rule finds acceptable - to come next */ - for (j = 0; j < ntokens; j++) - { - /* and record this rule as the rule to use if that - token follows. */ - if (mask & *wordp) - actrow[j] = rule; - - mask <<= 1; - if (mask == 0) - { - mask = 1; - wordp++; - } - } - } + /* and find each token which the rule finds acceptable + to come next */ + for (j = 0; j < ntokens; j++) + /* and record this rule as the rule to use if that + token follows. */ + if (BITISSET (LA (i), j)) + actrow[j] = -LAruleno[i]; } } - shiftp = shift_table[state]; - /* Now see which tokens are allowed for shifts in this state. For them, record the shift as the thing to do. So shift is preferred to reduce. */ - - if (shiftp) + shiftp = state_table[state]->shifts; + for (i = 0; i < shiftp->nshifts; i++) { - k = shiftp->nshifts; - - for (i = 0; i < k; i++) - { - shift_state = shiftp->shifts[i]; - if (!shift_state) - continue; + shift_state = shiftp->shifts[i]; + if (!shift_state) + continue; - symbol = accessing_symbol[shift_state]; + symbol = state_table[shift_state]->accessing_symbol; - if (ISVAR (symbol)) - break; + if (ISVAR (symbol)) + break; - actrow[symbol] = shift_state; + actrow[symbol] = shift_state; - /* Do not use any default reduction if there is a shift for - error */ - if (symbol == error_token_number) - nodefault = 1; - } + /* Do not use any default reduction if there is a shift for + error */ + if (symbol == error_token_number) + nodefault = 1; } - errp = err_table[state]; - /* See which tokens are an explicit error in this state (due to %nonassoc). For them, record MINSHORT as the action. */ + errp = state_table[state]->errs; if (errp) { @@ -630,14 +412,14 @@ action_row (int state) if (nreds >= 1 && !nodefault) { - if (consistent[state]) + if (state_table[state]->consistent) default_rule = redp->rules[0]; else { - max = 0; + int max = 0; for (i = m; i < n; i++) { - count = 0; + int count = 0; rule = -LAruleno[i]; for (j = 0; j < ntokens; j++) @@ -739,50 +521,52 @@ token_actions (void) yydefact[i] = action_row (i); save_row (i); } - XFREE (actrow); - output_short_table (&table_obstack, - "YYDEFACT[S] -- default rule to reduce with in state S when YYTABLE\n\ - doesn't specify something else to do. Zero means the default is an\n\ - error", - "yydefact", yydefact, - yydefact[0], 1, nstates); - obstack_1grow (&table_obstack, '\n'); + output_table_data (&output_obstack, yydefact, + yydefact[0], 1, nstates); + muscle_insert ("defact", obstack_finish (&output_obstack)); + + XFREE (actrow); XFREE (yydefact); } -static void -free_shifts (void) -{ - shifts *sp, *sptmp; /* JF derefrenced freed ptr */ - - XFREE (shift_table); - - for (sp = first_shift; sp; sp = sptmp) - { - sptmp = sp->next; - XFREE (sp); - } -} - +/*-----------------------------. +| Output the actions to OOUT. | +`-----------------------------*/ static void -free_reductions (void) +actions_output (FILE *out, size_t *line) { - reductions *rp, *rptmp; /* JF fixed freed ptr */ - - XFREE (reduction_table); - - for (rp = first_reduction; rp; rp = rptmp) - { - rptmp = rp->next; - XFREE (rp); - } + int rule; + for (rule = 1; rule < nrules + 1; ++rule) + if (rule_table[rule].action) + { + fprintf (out, " case %d:\n", rule); + + if (!no_lines_flag) + fprintf (out, muscle_find ("linef"), + rule_table[rule].action_line, + quotearg_style (c_quoting_style, + muscle_find ("filename"))); + /* As a Bison extension, add the ending semicolon. Since some + Yacc don't do that, help people using bison as a Yacc + finding their missing semicolons. */ + fprintf (out, "{ %s%s }\n break;\n\n", + rule_table[rule].action, + yacc_flag ? ";" : ""); + + /* We always output 4 '\n' per action. */ + *line += 4; + /* Plus one if !no_lines_flag. */ + if (!no_lines_flag) + ++*line; + /* Get the number of lines written by the user. */ + *line += get_lines_number (rule_table[rule].action); + } } - static void save_column (int symbol, int default_state) { @@ -874,10 +658,9 @@ static void goto_actions (void) { int i; - short *yydefgoto = XMALLOC (short, nsyms - ntokens); - state_count = XCALLOC (short, nstates); + state_count = XCALLOC (short, nstates); for (i = ntokens; i < nsyms; ++i) { int default_state = default_goto (i); @@ -885,8 +668,9 @@ goto_actions (void) yydefgoto[i - ntokens] = default_state; } - output_short_table (&table_obstack, NULL, "yydefgoto", yydefgoto, - yydefgoto[0], 1, nsyms - ntokens); + output_table_data (&output_obstack, yydefgoto, + yydefgoto[0], 1, nsyms - ntokens); + muscle_insert ("defgoto", obstack_finish (&output_obstack)); XFREE (state_count); XFREE (yydefgoto); @@ -1030,8 +814,8 @@ pack_vector (int vector) } } - berror ("pack_vector"); - return 0; /* JF keep lint happy */ + assert (!"pack_vector"); + return 0; } @@ -1088,13 +872,15 @@ pack_table (void) static void output_base (void) { - output_short_table (&table_obstack, NULL, "yypact", base, - base[0], 1, nstates); + /* Output pact. */ + output_table_data (&output_obstack, base, + base[0], 1, nstates); + muscle_insert ("pact", obstack_finish (&output_obstack)); - obstack_1grow (&table_obstack, '\n'); - - output_short_table (&table_obstack, NULL, "yypgoto", base, - base[nstates], nstates + 1, nvectors); + /* Output pgoto. */ + output_table_data (&output_obstack, base, + base[nstates], nstates + 1, nvectors); + muscle_insert ("pgoto", obstack_finish (&output_obstack)); XFREE (base); } @@ -1103,9 +889,9 @@ output_base (void) static void output_table (void) { - obstack_fgrow1 (&table_obstack, "\n\n#define\tYYLAST\t\t%d\n\n\n", high); - output_short_table (&table_obstack, NULL, "yytable", table, - table[0], 1, high + 1); + output_table_data (&output_obstack, table, + table[0], 1, high + 1); + muscle_insert ("table", obstack_finish (&output_obstack)); XFREE (table); } @@ -1113,8 +899,9 @@ output_table (void) static void output_check (void) { - output_short_table (&table_obstack, NULL, "yycheck", check, - check[0], 1, high + 1); + output_table_data (&output_obstack, check, + check[0], 1, high + 1); + muscle_insert ("check", obstack_finish (&output_obstack)); XFREE (check); } @@ -1124,6 +911,7 @@ output_check (void) static void output_actions (void) { + int i; nvectors = nstates + nvars; froms = XCALLOC (short *, nvectors); @@ -1132,12 +920,8 @@ output_actions (void) width = XCALLOC (short, nvectors); token_actions (); - free_shifts (); - free_reductions (); - XFREE (lookaheads); XFREE (LA); XFREE (LAruleno); - XFREE (accessing_symbol); goto_actions (); XFREE (goto_map + ntokens); @@ -1146,125 +930,192 @@ output_actions (void) sort_actions (); pack_table (); - obstack_1grow (&table_obstack, '\n'); + output_base (); output_table (); - obstack_1grow (&table_obstack, '\n'); + output_check (); + + for (i = 0; i < nstates; ++i) + { + XFREE (state_table[i]->shifts); + XFREE (state_table[i]->reductions); + XFREE (state_table[i]->errs); + free (state_table[i]); + } + XFREE (state_table); } -/*------------------------------------------. -| Copy the parser code into TABLE_OBSTACK. | -`------------------------------------------*/ + +/*------------------------------------------------------------. +| Copy the parser code from SKEL_FILENAME into OOUT obstack. | +| and do the muscle substitution. | +`------------------------------------------------------------*/ static void -output_parser (void) +output_parser (const char *skel_filename, FILE *out) { int c; - static int number_of_dollar_signs = 0; FILE *fskel; + size_t line; - if (pure_parser) - obstack_grow_literal_string (&table_obstack, "#define YYPURE 1\n\n"); - - /* Loop over lines in the standard parser file. */ - if (semantic_parser) - fskel = xfopen (skeleton_find ("BISON_HAIRY", BISON_HAIRY), "r"); - else - fskel = xfopen (skeleton_find ("BISON_SIMPLE", BISON_SIMPLE), "r"); + fskel = xfopen (skel_filename, "r"); - while (1) + /* New output code. */ + line = 1; + c = getc (fskel); + while (c != EOF) { - int write_line = 1; - - c = getc (fskel); - - /* See if the line starts with `#line. - If so, set write_line to 0. */ - if (no_lines_flag) - if (c == '#') - { - c = getc (fskel); - if (c == 'l') - { - c = getc (fskel); - if (c == 'i') - { - c = getc (fskel); - if (c == 'n') - { - c = getc (fskel); - if (c == 'e') - write_line = 0; - else - obstack_grow_literal_string (&table_obstack, "#lin"); - } - else - obstack_grow_literal_string (&table_obstack, "#li"); - } - else - obstack_grow_literal_string (&table_obstack, "#l"); - } - else - obstack_grow_literal_string (&table_obstack, "#"); - } - - /* now write out the line... */ - for (; c != '\n' && c != EOF; c = getc (fskel)) - if (write_line) - { - /* `$' in the parser file indicates where to put the - actions. Copy them in at this point. */ - if (c == '$') - { - size_t size = obstack_object_size (&action_obstack); - - number_of_dollar_signs++; - assert (number_of_dollar_signs == 1); - obstack_grow (&table_obstack, - obstack_finish (&action_obstack), - size); - - /* Skip the end of the line containing `$'. */ - write_line = 0; - } - else - obstack_1grow (&table_obstack, c); - } - if (c == EOF) - break; - obstack_1grow (&table_obstack, c); + if (c != '%') + { + if (c == '\n') + ++line; + putc (c, out); + c = getc (fskel); + } + else if ((c = getc (fskel)) == '%') + { + /* Read the muscle. */ + const char *muscle_key = 0; + const char *muscle_value = 0; + + while (isalnum (c = getc (fskel)) || c == '-') + obstack_1grow (&muscle_obstack, c); + obstack_1grow (&muscle_obstack, 0); + + /* Output the right value, or see if it's something special. */ + muscle_key = obstack_finish (&muscle_obstack); + muscle_value = muscle_find (muscle_key); + if (!strcmp (muscle_key, "actions")) + actions_output (out, &line); + else if (!strcmp (muscle_key, "line")) + fprintf (out, "%d", line); + else if (muscle_value) + { + fputs (muscle_value, out); + line += get_lines_number (muscle_value); + } + else + { + fputs ("%%", out); + fputs (muscle_key, out); + } + } + else + putc ('%', out); } - assert (number_of_dollar_signs == 1); + + /* End. */ xfclose (fskel); } +/*----------------------------------------. +| Prepare the master parser to be output | +`----------------------------------------*/ + static void -output_program (void) +output_master_parser (void) { - int c; + FILE *parser = xfopen (parser_file_name, "w"); + if (!skeleton) + { + if (semantic_parser) + skeleton = skeleton_find ("BISON_HAIRY", BISON_HAIRY); + else + skeleton = skeleton_find ("BISON_SIMPLE", BISON_SIMPLE); + } + muscle_insert ("skeleton", skeleton); + muscle_insert ("parser-file-name", parser_file_name); + + output_parser (skeleton, parser); + xfclose (parser); +} + + +/* FIXME. */ - if (!no_lines_flag) - obstack_fgrow2 (&table_obstack, "#line %d %s\n", - lineno, quotearg_style (c_quoting_style, infile)); +#define MUSCLE_INSERT_INT(Key, Value) \ +{ \ + obstack_fgrow1 (&muscle_obstack, "%d", Value); \ + obstack_1grow (&muscle_obstack, 0); \ + muscle_insert (Key, obstack_finish (&muscle_obstack)); \ +} - while ((c = getc (finput)) != EOF) - obstack_1grow (&table_obstack, c); +#define MUSCLE_INSERT_STRING(Key, Value) \ +{ \ + obstack_sgrow (&muscle_obstack, Value); \ + obstack_1grow (&muscle_obstack, 0); \ + muscle_insert (Key, obstack_finish (&muscle_obstack)); \ } +#define MUSCLE_INSERT_PREFIX(Key, Value) \ +{ \ + obstack_fgrow2 (&muscle_obstack, "%s%s", spec_name_prefix, Value); \ + obstack_1grow (&muscle_obstack, 0); \ + muscle_insert (Key, obstack_finish (&muscle_obstack)); \ +} static void -free_itemsets (void) +prepare (void) { - core *cp, *cptmp; + MUSCLE_INSERT_INT ("last", high); + MUSCLE_INSERT_INT ("flag", MINSHORT); + MUSCLE_INSERT_INT ("pure", pure_parser); + MUSCLE_INSERT_INT ("nsym", nsyms); + MUSCLE_INSERT_INT ("debug", debug_flag); + MUSCLE_INSERT_INT ("final", final_state); + MUSCLE_INSERT_INT ("maxtok", max_user_token_number); + MUSCLE_INSERT_INT ("ntbase", ntokens); + MUSCLE_INSERT_INT ("error-verbose", error_verbose); + MUSCLE_INSERT_STRING ("prefix", spec_name_prefix); + + MUSCLE_INSERT_INT ("nnts", nvars); + MUSCLE_INSERT_INT ("nrules", nrules); + MUSCLE_INSERT_INT ("nstates", nstates); + MUSCLE_INSERT_INT ("ntokens", ntokens); + + MUSCLE_INSERT_INT ("locations-flag", locations_flag); +} - XFREE (state_table); - for (cp = first_state; cp; cp = cptmp) +/*-------------------------. +| Output the header file. | +`-------------------------*/ + +static void +header_output (void) +{ + FILE *out = xfopen (spec_defines_file, "w"); + char *macro_name = compute_header_macro (); + + fprintf (out, "#ifndef %s\n", macro_name); + fprintf (out, "# define %s\n\n", macro_name); + + fputs (muscle_find ("tokendef"), out); + fprintf (out, "\ +#ifndef YYSTYPE\n\ +typedef %s +yystype;\n\ +# define YYSTYPE yystype\n\ +#endif\n", + muscle_find ("stype")); + + if (!pure_parser) + fprintf (out, "\nextern YYSTYPE %slval;\n", + spec_name_prefix); + if (semantic_parser) { - cptmp = cp->next; - XFREE (cp); + int i; + + for (i = ntokens; i < nsyms; i++) + /* don't make these for dummy nonterminals made by gensym. */ + if (*tags[i] != '@') + fprintf (out, "# define\tNT%s\t%d\n", tags[i], i); } + + fprintf (out, "\n#endif /* not %s */\n", macro_name); + free (macro_name); + xfclose (out); } @@ -1275,51 +1126,31 @@ free_itemsets (void) void output (void) { - /* output_token_defines(ftable); / * JF put out token defines FIRST */ + obstack_init (&output_obstack); - /* If using a simple parser the definition of YYSTYPE are put into - TABLE_OBSTACK. */ - if (!semantic_parser) - { - size_t size = obstack_object_size (&attrs_obstack); - obstack_grow (&table_obstack, obstack_finish (&attrs_obstack), size); - } - reader_output_yylsp (&table_obstack); - if (debug_flag) - obstack_grow_literal_string (&table_obstack, "\ -#ifndef YYDEBUG\n\ -# define YYDEBUG 1\n\ -#endif\n\ -\n"); - - if (semantic_parser) - obstack_fgrow1 (&table_obstack, "#include %s\n", - quotearg_style (c_quoting_style, attrsfile)); - - if (!no_parser_flag) - obstack_grow_literal_string (&table_obstack, "#include \n\n"); - - /* Make "const" do nothing if not in ANSI C. */ - obstack_grow_literal_string (&table_obstack, "\ -#ifndef __cplusplus\n\ -# ifndef __STDC__\n\ -# define const\n\ -# endif\n\ -#endif\n\ -\n"); - - free_itemsets (); - output_defines (); output_token_translations (); -/* if (semantic_parser) */ - /* This is now unconditional because debugging printouts can use it. */ output_gram (); + XFREE (ritem); if (semantic_parser) output_stos (); output_rule_data (); + XFREE (user_toknums); output_actions (); - if (!no_parser_flag) - output_parser (); - output_program (); + + prepare (); + /* Copy definitions in directive. */ + obstack_1grow (&attrs_obstack, 0); + muscle_insert ("prologue", obstack_finish (&attrs_obstack)); + + /* Output the parser. */ + output_master_parser (); + /* Output the header if needed. */ + if (defines_flag) + header_output (); + + free (rule_table + 1); + obstack_free (&muscle_obstack, 0); + obstack_free (&output_obstack, 0); + obstack_free (&action_obstack, 0); }