X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/01cfa697919c2a7563c61d7a07863445317efa13..a932883e412c052a3b3542be333c3057ed1c0868:/src/output.c diff --git a/src/output.c b/src/output.c index 43016473..da0d7852 100644 --- a/src/output.c +++ b/src/output.c @@ -1,4 +1,4 @@ -/* Output the generated parsing program for bison, +/* Output the generated parsing program for Bison. Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002 Free Software Foundation, Inc. @@ -107,6 +107,30 @@ GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_item_number_table, item_number_t) GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_state_number_table, state_number_t) +/*----------------------------------------------------------------------. +| Print to OUT a representation of FILENAME escaped both for C and M4. | +`----------------------------------------------------------------------*/ + +static void +escaped_file_name_output (FILE *out, char const *filename) +{ + char const *p; + fprintf (out, "[["); + + for (p = quotearg_style (c_quoting_style, filename); *p; p++) + switch (*p) + { + case '$': fputs ("$][", out); break; + case '@': fputs ("@@", out); break; + case '[': fputs ("@{", out); break; + case ']': fputs ("@}", out); break; + default: fputc (*p, out); break; + } + + fprintf (out, "]]"); +} + + /*------------------------------------------------------------------. | Prepare the muscles related to the symbols: translate, tname, and | | toknum. | @@ -146,14 +170,7 @@ prepare_symbols (void) j = 2; } - for (; *cp; cp++) - switch (*cp) - { - case '[': obstack_sgrow (&format_obstack, "@<:@"); break; - case ']': obstack_sgrow (&format_obstack, "@:>@"); break; - default: obstack_1grow (&format_obstack, *cp); break; - } - + MUSCLE_OBSTACK_SGROW (&format_obstack, cp); obstack_sgrow (&format_obstack, ", "); j += strsize; } @@ -181,7 +198,7 @@ prepare_symbols (void) /*-------------------------------------------------------------. | Prepare the muscles related to the rules: rhs, prhs, r1, r2, | -| rline, dprec, merger | +| rline, dprec, merger. | `-------------------------------------------------------------*/ static void @@ -213,12 +230,13 @@ prepare_rules (void) rhs[i++] = -1; /* Line where rule was defined. */ rline[r] = rules[r].location.first_line; - /* Dynamic precedence (GLR) */ + /* Dynamic precedence (GLR). */ dprec[r] = rules[r].dprec; - /* Merger-function index (GLR) */ + /* Merger-function index (GLR). */ merger[r] = rules[r].merger; } - assert (i == nritems); + if (i != nritems) + abort (); muscle_insert_item_number_table ("rhs", rhs, ritem[0], 1, nritems); muscle_insert_unsigned_int_table ("prhs", prhs, 0, 0, nrules); @@ -276,11 +294,10 @@ user_actions_output (FILE *out) { fprintf (out, " case %d:\n", r + 1); - if (!no_lines_flag) - fprintf (out, muscle_find ("linef"), - rules[r].action_location.first_line, - quotearg_style (c_quoting_style, - muscle_find ("filename"))); + 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); } @@ -329,7 +346,8 @@ token_definitions_output (FILE *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. */ - assert (number != USER_NUMBER_ALIAS); + if (number == USER_NUMBER_ALIAS) + abort (); /* Skip error token. */ if (symbol == errtoken) @@ -379,9 +397,11 @@ symbol_destructors_output (FILE *out) /* Filename, lineno, Symbol-name, Symbol-number, destructor, typename. */ - fprintf (out, "%s[[[%s]], [[%d]], [[%s]], [[%d]], [[%s]], [[%s]]]", - first ? "" : ",\n", - infile, symbol->destructor_location.first_line, + 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, @@ -412,9 +432,11 @@ symbol_printers_output (FILE *out) /* Filename, lineno, Symbol-name, Symbol-number, printer, typename. */ - fprintf (out, "%s[[[%s]], [[%d]], [[%s]], [[%d]], [[%s]], [[%s]]]", - first ? "" : ",\n", - infile, symbol->printer_location.first_line, + 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, @@ -506,10 +528,7 @@ output_skeleton (void) strcpy (full_path, pkgdatadir); full_path[pkgdatadirlen] = '/'; strcpy (full_path + pkgdatadirlen + 1, m4sugar); - in = fopen (full_path, "r"); - if (! in) - error (EXIT_FAILURE, errno, "%s", full_path); - xfclose (in); + xfclose (xfopen (full_path, "r")); strcpy (full_path + pkgdatadirlen + 1, skeleton); /* Create an m4 subprocess connected to us via two pipes. */ @@ -564,19 +583,15 @@ static void prepare (void) { /* Flags. */ - MUSCLE_INSERT_INT ("locations_flag", locations_flag); + 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 ("debug", debug_flag); + MUSCLE_INSERT_INT ("synclines_flag", !no_lines_flag); - /* FIXME: This is wrong: the muscles should decide whether they hold - a copy or not, but the situation is too obscure currently. */ + /* File names. */ MUSCLE_INSERT_STRING ("prefix", spec_name_prefix ? spec_name_prefix : "yy"); - MUSCLE_INSERT_STRING ("output_infix", output_infix ? output_infix : ""); - MUSCLE_INSERT_STRING ("output_prefix", short_base_name); - MUSCLE_INSERT_STRING ("output_parser_name", parser_file_name); - MUSCLE_INSERT_STRING ("output_header_name", spec_defines_file); /* User Code. */ obstack_1grow (&pre_prologue_obstack, 0); @@ -594,7 +609,7 @@ prepare (void) } /* Parse the skeleton file and output the needed parsers. */ - MUSCLE_INSERT_STRING ("skeleton", skeleton); + MUSCLE_INSERT_C_STRING ("skeleton", skeleton); }