X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/6e30ede87a1c39c53842a6a747ecd9f7484d92a5..6c05543cb03b40b9728f7073c4073ce993d796c6:/src/muscle-tab.c diff --git a/src/muscle-tab.c b/src/muscle-tab.c index bcd96dfd..8e569812 100644 --- a/src/muscle-tab.c +++ b/src/muscle-tab.c @@ -1,7 +1,6 @@ /* Muscle table manager for Bison. - Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, - 2010 Free Software Foundation, Inc. + Copyright (C) 2001-2012 Free Software Foundation, Inc. This file is part of Bison, the GNU Compiler Compiler. @@ -22,12 +21,12 @@ #include "system.h" #include -#include #include "complain.h" #include "files.h" -#include "muscle-tab.h" #include "getargs.h" +#include "muscle-tab.h" +#include "quote.h" /* A key-value pair, along with storage that can be reclaimed when this pair is no longer needed. */ @@ -51,7 +50,7 @@ hash_compare_muscles (void const *x, void const *y) { muscle_entry const *m1 = x; muscle_entry const *m2 = y; - return strcmp (m1->key, m2->key) == 0; + return STREQ (m1->key, m2->key); } static size_t @@ -81,7 +80,7 @@ muscle_init (void) obstack_init (&muscle_obstack); muscle_table = hash_initialize (HT_INITIAL_CAPACITY, NULL, hash_muscle, - hash_compare_muscles, muscle_entry_free); + hash_compare_muscles, muscle_entry_free); /* Version and input file. */ MUSCLE_INSERT_STRING ("version", VERSION); @@ -158,12 +157,9 @@ muscle_grow (const char *key, const char *val, const char *separator) { /* Grow the current value. */ char *new_val; - obstack_sgrow (&muscle_obstack, entry->value); + obstack_printf (&muscle_obstack, "%s%s%s", entry->value, separator, val); free (entry->storage); - obstack_sgrow (&muscle_obstack, separator); - obstack_sgrow (&muscle_obstack, val); - obstack_1grow (&muscle_obstack, 0); - new_val = obstack_finish (&muscle_obstack); + new_val = obstack_finish0 (&muscle_obstack); entry->value = entry->storage = xstrdup (new_val); obstack_free (&muscle_obstack, new_val); } @@ -178,12 +174,11 @@ static void muscle_syncline_grow (char const *key, location loc) { char *extension = NULL; - obstack_fgrow1 (&muscle_obstack, "]b4_syncline(%d, [[", loc.start.line); - MUSCLE_OBSTACK_SGROW (&muscle_obstack, - quotearg_style (c_quoting_style, loc.start.file)); - obstack_sgrow (&muscle_obstack, "]])["); - obstack_1grow (&muscle_obstack, 0); - extension = obstack_finish (&muscle_obstack); + obstack_printf (&muscle_obstack, "]b4_syncline(%d, ", loc.start.line); + obstack_quote (&muscle_obstack, + quotearg_style (c_quoting_style, loc.start.file)); + obstack_sgrow (&muscle_obstack, ")["); + extension = obstack_finish0 (&muscle_obstack); muscle_grow (key, extension, ""); obstack_free (&muscle_obstack, extension); } @@ -203,16 +198,15 @@ muscle_code_grow (const char *key, const char *val, location loc) void muscle_pair_list_grow (const char *muscle, - const char *a1, const char *a2) + const char *a1, const char *a2) { char *pair; - obstack_sgrow (&muscle_obstack, "[[["); - MUSCLE_OBSTACK_SGROW (&muscle_obstack, a1); - obstack_sgrow (&muscle_obstack, "]], [["); - MUSCLE_OBSTACK_SGROW (&muscle_obstack, a2); - obstack_sgrow (&muscle_obstack, "]]]"); - obstack_1grow (&muscle_obstack, 0); - pair = obstack_finish (&muscle_obstack); + obstack_sgrow (&muscle_obstack, "["); + obstack_quote (&muscle_obstack, a1); + obstack_sgrow (&muscle_obstack, ", "); + obstack_quote (&muscle_obstack, a2); + obstack_sgrow (&muscle_obstack, "]"); + pair = obstack_finish0 (&muscle_obstack); muscle_grow (muscle, pair, ",\n"); obstack_free (&muscle_obstack, pair); } @@ -260,65 +254,67 @@ muscle_find (char const *key) } -void +/* In the format `file_name:line.column', append BOUND to MUSCLE. Use + digraphs for special characters in the file name. */ + +static void muscle_boundary_grow (char const *key, boundary bound) { char *extension; - MUSCLE_OBSTACK_SGROW (&muscle_obstack, bound.file); - obstack_1grow (&muscle_obstack, ':'); - obstack_fgrow1 (&muscle_obstack, "%d", bound.line); - obstack_1grow (&muscle_obstack, '.'); - obstack_fgrow1 (&muscle_obstack, "%d", bound.column); - obstack_1grow (&muscle_obstack, '\0'); - extension = obstack_finish (&muscle_obstack); + obstack_sgrow (&muscle_obstack, "[["); + obstack_escape (&muscle_obstack, bound.file); + obstack_printf (&muscle_obstack, ":%d.%d]]", bound.line, bound.column); + extension = obstack_finish0 (&muscle_obstack); muscle_grow (key, extension, ""); obstack_free (&muscle_obstack, extension); } -void + +/* In the format `[[file_name:line.column]], [[file_name:line.column]]', + append LOC to MUSCLE. Use digraphs for special characters in each + file name. */ + +static void muscle_location_grow (char const *key, location loc) { - muscle_grow (key, "[[", ""); muscle_boundary_grow (key, loc.start); - muscle_grow (key, "]], [[", ""); + muscle_grow (key, "", ", "); muscle_boundary_grow (key, loc.end); - muscle_grow (key, "]]", ""); } -#define MUSCLE_COMMON_DECODE(Value) \ - case '$': \ - aver (*++(Value) == ']'); \ - aver (*++(Value) == '['); \ - obstack_sgrow (&muscle_obstack, "$"); \ - break; \ - case '@': \ - switch (*++(Value)) \ - { \ - case '@': obstack_sgrow (&muscle_obstack, "@" ); break; \ - case '{': obstack_sgrow (&muscle_obstack, "[" ); break; \ - case '}': obstack_sgrow (&muscle_obstack, "]" ); break; \ - default: aver (false); break; \ - } \ - break; \ - default: \ - obstack_1grow (&muscle_obstack, *(Value)); \ +#define COMMON_DECODE(Value) \ + case '$': \ + aver (*++(Value) == ']'); \ + aver (*++(Value) == '['); \ + obstack_sgrow (&muscle_obstack, "$"); \ + break; \ + case '@': \ + switch (*++(Value)) \ + { \ + case '@': obstack_sgrow (&muscle_obstack, "@" ); break; \ + case '{': obstack_sgrow (&muscle_obstack, "[" ); break; \ + case '}': obstack_sgrow (&muscle_obstack, "]" ); break; \ + default: aver (false); break; \ + } \ + break; \ + default: \ + obstack_1grow (&muscle_obstack, *(Value)); \ break; -/* Reverse of MUSCLE_OBSTACK_SGROW. */ +/* Reverse of obstack_escape. */ static char * -muscle_string_decode (char const *key) +string_decode (char const *key) { - char const *value; + char const *value = muscle_find_const (key); char *value_decoded; char *result; - value = muscle_find_const (key); if (!value) return NULL; do { switch (*value) { - MUSCLE_COMMON_DECODE (value) + COMMON_DECODE (value) case '[': case ']': aver (false); @@ -333,7 +329,7 @@ muscle_string_decode (char const *key) /* Reverse of muscle_location_grow. */ static location -muscle_location_decode (char const *key) +location_decode (char const *key) { location loc; char const *value = muscle_find_const (key); @@ -343,7 +339,7 @@ muscle_location_decode (char const *key) while (*++value) switch (*value) { - MUSCLE_COMMON_DECODE (value) + COMMON_DECODE (value) case '[': aver (false); break; @@ -351,8 +347,7 @@ muscle_location_decode (char const *key) { char *boundary_str; aver (*++value == ']'); - obstack_1grow (&muscle_obstack, '\0'); - boundary_str = obstack_finish (&muscle_obstack); + boundary_str = obstack_finish0 (&muscle_obstack); switch (*++value) { case ',': @@ -389,25 +384,49 @@ muscle_user_name_list_grow (char const *key, char const *user_name, muscle_grow (key, "]]", ""); } +/** If the \a variable name is obsolete, return the name to use, + * otherwise \a variable. */ +static +char const * +muscle_percent_variable_update (char const *variable, location variable_loc) +{ + typedef struct + { + const char *obsolete; + const char *updated; + } conversion_type; + const conversion_type conversion[] = + { + { "api.push_pull", "api.push-pull", }, + { "lr.keep_unreachable_states", "lr.keep-unreachable-states", }, + { "namespace", "api.namespace", }, + }; + char const *res = variable; + int i; + for (i = 0; i < ARRAY_CARDINALITY (conversion); ++i) + if (STREQ (conversion[i].obsolete, variable)) + { + res = conversion[i].updated; + complain_at (variable_loc, Wdeprecated, + _("deprecated %%define variable name: %s, use %s"), + quote (variable), quote_n (1, res)); + break; + } + return res; +} + void muscle_percent_define_insert (char const *variable, location variable_loc, char const *value, muscle_percent_define_how how) { - char *variable_tr = NULL; char const *name; char const *loc_name; char const *syncline_name; char const *how_name; /* Permit certain names with underscores for backward compatibility. */ - if (0 == strcmp (variable, "api.push_pull") - || 0 == strcmp (variable, "lr.keep_unreachable_states")) - { - variable_tr = strdup (variable); - tr (variable_tr, '_', '-'); - variable = variable_tr; - } + variable = muscle_percent_variable_update (variable, variable_loc); name = UNIQSTR_CONCAT ("percent_define(", variable, ")"); loc_name = UNIQSTR_CONCAT ("percent_define_loc(", variable, ")"); @@ -419,17 +438,13 @@ muscle_percent_define_insert (char const *variable, location variable_loc, if (how == MUSCLE_PERCENT_DEFINE_GRAMMAR_FILE && muscle_find_const (name)) { - muscle_percent_define_how how_old = - atoi (muscle_find_const (how_name)); + muscle_percent_define_how how_old = atoi (muscle_find_const (how_name)); if (how_old == MUSCLE_PERCENT_DEFINE_F) - { - free (variable_tr); - return; - } - complain_at (variable_loc, _("%%define variable `%s' redefined"), - variable); - complain_at (muscle_percent_define_get_loc (variable), - _("previous definition")); + return; + complain_at (variable_loc, complaint, _("%%define variable %s redefined"), + quote (variable)); + location loc = muscle_percent_define_get_loc (variable); + complain_at (loc, complaint, _("previous definition")); } MUSCLE_INSERT_STRING (name, value); @@ -440,65 +455,74 @@ muscle_percent_define_insert (char const *variable, location variable_loc, muscle_user_name_list_grow ("percent_define_user_variables", variable, variable_loc); MUSCLE_INSERT_INT (how_name, how); +} - free (variable_tr); +/* This is used for backward compatibility, e.g., "%define api.pure" + supersedes "%pure-parser". */ +void +muscle_percent_define_ensure (char const *variable, location loc, + bool value) +{ + char const *val = value ? "" : "false"; + char const *name = UNIQSTR_CONCAT ("percent_define(", variable, ")"); + + /* %pure-parser is deprecated in favor of `%define api.pure', so use + `%define api.pure' in a backward-compatible manner here. First, + don't complain if %pure-parser is specified multiple times. */ + if (!muscle_find_const (name)) + muscle_percent_define_insert (variable, loc, val, + MUSCLE_PERCENT_DEFINE_GRAMMAR_FILE); + /* In all cases, use api.pure now so that the backend doesn't complain if + the skeleton ignores api.pure, but do warn now if there's a previous + conflicting definition from an actual %define. */ + if (muscle_percent_define_flag_if (variable) != value) + muscle_percent_define_insert (variable, loc, val, + MUSCLE_PERCENT_DEFINE_GRAMMAR_FILE); } char * muscle_percent_define_get (char const *variable) { - char const *name; - char const *usage_name; - char *value; - - name = UNIQSTR_CONCAT ("percent_define(", variable, ")"); - usage_name = UNIQSTR_CONCAT ("percent_define_bison_variables(", - variable, ")"); - - muscle_insert (usage_name, ""); - value = muscle_string_decode (name); + char const *name = UNIQSTR_CONCAT ("percent_define(", variable, ")"); + char const *usage_name = + UNIQSTR_CONCAT ("percent_define_bison_variables(", variable, ")"); + char *value = string_decode (name); if (!value) value = xstrdup (""); + + muscle_insert (usage_name, ""); return value; } location muscle_percent_define_get_loc (char const *variable) { - char const *loc_name; - loc_name = UNIQSTR_CONCAT ("percent_define_loc(", variable, ")"); + char const *loc_name = UNIQSTR_CONCAT ("percent_define_loc(", variable, ")"); if (!muscle_find_const (loc_name)) - fatal(_("undefined %%define variable `%s' passed to" - " muscle_percent_define_get_loc"), variable); - return muscle_location_decode (loc_name); + complain (fatal, _("%s: undefined %%define variable %s"), + "muscle_percent_define_get_loc", quote (variable)); + return location_decode (loc_name); } char const * muscle_percent_define_get_syncline (char const *variable) { - char const *syncline_name; - char const *syncline; - syncline_name = + char const *syncline_name = UNIQSTR_CONCAT ("percent_define_syncline(", variable, ")"); - syncline = muscle_find_const (syncline_name); + char const *syncline = muscle_find_const (syncline_name); if (!syncline) - fatal(_("undefined %%define variable `%s' passed to" - " muscle_percent_define_get_syncline"), variable); + complain (fatal, _("%s: undefined %%define variable %s"), + "muscle_percent_define_get_syncline", quote (variable)); return syncline; } bool muscle_percent_define_ifdef (char const *variable) { - char const *name; - char const *usage_name; - char const *value; - - name = UNIQSTR_CONCAT ("percent_define(", variable, ")"); - usage_name = + char const *name = UNIQSTR_CONCAT ("percent_define(", variable, ")"); + char const *usage_name = UNIQSTR_CONCAT ("percent_define_bison_variables(", variable, ")"); - - value = muscle_find_const (name); + char const *value = muscle_find_const (name); if (value) { muscle_insert (usage_name, ""); @@ -511,31 +535,30 @@ muscle_percent_define_ifdef (char const *variable) bool muscle_percent_define_flag_if (char const *variable) { - char const *invalid_boolean_name; - bool result = false; - - invalid_boolean_name = + char const *invalid_boolean_name = UNIQSTR_CONCAT ("percent_define_invalid_boolean(", variable, ")"); + bool result = false; if (muscle_percent_define_ifdef (variable)) { char *value = muscle_percent_define_get (variable); - if (value[0] == '\0' || 0 == strcmp (value, "true")) + if (value[0] == '\0' || STREQ (value, "true")) result = true; - else if (0 == strcmp (value, "false")) + else if (STREQ (value, "false")) result = false; else if (!muscle_find_const (invalid_boolean_name)) { muscle_insert (invalid_boolean_name, ""); - complain_at(muscle_percent_define_get_loc (variable), - _("invalid value for %%define Boolean variable `%s'"), - variable); + location loc = muscle_percent_define_get_loc (variable); + complain_at (loc, complaint, + _("invalid value for %%define Boolean variable %s"), + quote (variable)); } free (value); } else - fatal(_("undefined %%define variable `%s' passed to muscle_percent_define_flag_if"), - variable); + complain (fatal, _("%s: undefined %%define variable %s"), + "muscle_percent_define_flag", quote (variable)); return result; } @@ -543,12 +566,9 @@ muscle_percent_define_flag_if (char const *variable) void muscle_percent_define_default (char const *variable, char const *value) { - char const *name; - char const *loc_name; - char const *syncline_name; - name = UNIQSTR_CONCAT ("percent_define(", variable, ")"); - loc_name = UNIQSTR_CONCAT ("percent_define_loc(", variable, ")"); - syncline_name = + char const *name = UNIQSTR_CONCAT ("percent_define(", variable, ")"); + char const *loc_name = UNIQSTR_CONCAT ("percent_define_loc(", variable, ")"); + char const *syncline_name = UNIQSTR_CONCAT ("percent_define_syncline(", variable, ")"); if (!muscle_find_const (name)) { @@ -569,27 +589,24 @@ muscle_percent_define_check_values (char const * const *values) for (; *values; ++values) { char const * const *variablep = values; - char const *name; - char *value; - - name = UNIQSTR_CONCAT ("percent_define(", *variablep, ")"); - - value = muscle_string_decode (name); + char const *name = UNIQSTR_CONCAT ("percent_define(", *variablep, ")"); + char *value = string_decode (name); if (value) { for (++values; *values; ++values) { - if (0 == strcmp (value, *values)) + if (STREQ (value, *values)) break; } if (!*values) { location loc = muscle_percent_define_get_loc (*variablep); - complain_at(loc, - _("invalid value for %%define variable `%s': `%s'"), - *variablep, value); + complain_at (loc, complaint, + _("invalid value for %%define variable %s: %s"), + quote (*variablep), quote_n (1, value)); for (values = variablep + 1; *values; ++values) - complain_at (loc, _("accepted value: `%s'"), *values); + complain_at (loc, complaint, _("accepted value: %s"), + quote (*values)); } else { @@ -599,9 +616,8 @@ muscle_percent_define_check_values (char const * const *values) free (value); } else - fatal(_("undefined %%define variable `%s' passed to" - " muscle_percent_define_check_values"), - *variablep); + complain (fatal, _("%s: undefined %%define variable %s"), + "muscle_percent_define_check_values", quote (*variablep)); } } @@ -609,8 +625,7 @@ void muscle_percent_code_grow (char const *qualifier, location qualifier_loc, char const *code, location code_loc) { - char const *name; - name = UNIQSTR_CONCAT ("percent_code(", qualifier, ")"); + char const *name = UNIQSTR_CONCAT ("percent_code(", qualifier, ")"); muscle_code_grow (name, code, code_loc); muscle_user_name_list_grow ("percent_code_user_qualifiers", qualifier, qualifier_loc); @@ -624,8 +639,9 @@ muscle_percent_code_grow (char const *qualifier, location qualifier_loc, static inline bool muscle_m4_output (muscle_entry *entry, FILE *out) { - fprintf (out, "m4_define([b4_%s],\n", entry->key); - fprintf (out, "[[%s]])\n\n\n", entry->value); + fprintf (out, + "m4_define([b4_%s],\n" + "[[%s]])\n\n\n", entry->key, entry->value); return true; }