/* Muscle table manager for Bison.
- Copyright (C) 2001-2010 Free Software Foundation, Inc.
+ Copyright (C) 2001-2012 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
#include "system.h"
#include <hash.h>
-#include <quotearg.h>
#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. */
{
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
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);
{
/* 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);
}
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);
}
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);
}
}
-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);
/* 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);
while (*++value)
switch (*value)
{
- MUSCLE_COMMON_DECODE (value)
+ COMMON_DECODE (value)
case '[':
aver (false);
break;
{
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 ',':
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, ")");
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, _("%s `%s' redefined"),
- "%define variable", 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);
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, "");
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;
}
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))
{
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
{
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));
}
}
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);
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;
}
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