/* Muscle table manager for Bison.
- Copyright (C) 2001-2012 Free Software Foundation, Inc.
+ Copyright (C) 2001-2013 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
return hash_string (m->key, tablesize);
}
-/*-----------------------------------------------------------------.
-| Create the MUSCLE_TABLE, and initialize it with default values. |
-| Also set up the MUSCLE_OBSTACK. |
-`-----------------------------------------------------------------*/
+/* Create a fresh muscle name KEY, and insert in the hash table. */
+static void *
+muscle_entry_new (char const *key)
+{
+ muscle_entry *res = xmalloc (sizeof *res);
+ res->key = key;
+ res->value = NULL;
+ res->storage = NULL;
+ if (!hash_insert (muscle_table, res))
+ xalloc_die ();
+ return res;
+}
static void
muscle_entry_free (void *entry)
}
-/*------------------------------------------------------------.
-| Free all the memory consumed by the muscle machinery only. |
-`------------------------------------------------------------*/
-
void
muscle_free (void)
{
obstack_free (&muscle_obstack, NULL);
}
+/* Look for the muscle named KEY. Return NULL if does not exist. */
+static
+muscle_entry *
+muscle_lookup (char const *key)
+{
+ muscle_entry probe;
+ probe.key = key;
+ return hash_lookup (muscle_table, &probe);
+}
-/*------------------------------------------------------------.
-| Insert (KEY, VALUE). If KEY already existed, overwrite the |
-| previous value. |
-`------------------------------------------------------------*/
-
void
muscle_insert (char const *key, char const *value)
{
- muscle_entry probe;
- muscle_entry *entry;
-
- probe.key = key;
- entry = hash_lookup (muscle_table, &probe);
-
- if (!entry)
- {
- /* First insertion in the hash. */
- entry = xmalloc (sizeof *entry);
- entry->key = key;
- if (!hash_insert (muscle_table, entry))
- xalloc_die ();
- }
- else
+ muscle_entry *entry = muscle_lookup (key);
+ if (entry)
free (entry->storage);
+ else
+ /* First insertion in the hash. */
+ entry = muscle_entry_new (key);
entry->value = value;
entry->storage = NULL;
}
void
muscle_grow (const char *key, const char *val, const char *separator)
{
- muscle_entry probe;
- muscle_entry *entry = NULL;
-
- probe.key = key;
- entry = hash_lookup (muscle_table, &probe);
+ muscle_entry *entry = muscle_lookup (key);
- if (!entry)
- {
- /* First insertion in the hash. */
- entry = xmalloc (sizeof *entry);
- entry->key = key;
- if (!hash_insert (muscle_table, entry))
- xalloc_die ();
- entry->value = entry->storage = xstrdup (val);
- }
- else
+ if (entry)
{
/* Grow the current value. */
char *new_val;
entry->value = entry->storage = xstrdup (new_val);
obstack_free (&muscle_obstack, new_val);
}
+ else
+ {
+ /* First insertion in the hash. */
+ entry = muscle_entry_new (key);
+ entry->value = entry->storage = xstrdup (val);
+ }
}
/*------------------------------------------------------------------.
}
-void muscle_pair_list_grow (const char *muscle,
- const char *a1, const char *a2)
+void
+muscle_pair_list_grow (const char *muscle,
+ const char *a1, const char *a2)
{
char *pair;
obstack_sgrow (&muscle_obstack, "[");
}
-/*----------------------------------------------------------------------------.
-| Find the value of muscle KEY. Unlike MUSCLE_FIND, this is always reliable |
-| to determine whether KEY has a value. |
-`----------------------------------------------------------------------------*/
-
char const *
muscle_find_const (char const *key)
{
- muscle_entry probe;
- muscle_entry *result = NULL;
-
- probe.key = key;
- result = hash_lookup (muscle_table, &probe);
- if (result)
- return result->value;
- return NULL;
+ muscle_entry *entry = muscle_lookup (key);
+ return entry ? entry->value : NULL;
}
-/*----------------------------------------------------------------------------.
-| Find the value of muscle KEY. Abort if muscle_insert was invoked more |
-| recently than muscle_grow for KEY since muscle_find can't return a |
-| char const *. |
-`----------------------------------------------------------------------------*/
-
char *
muscle_find (char const *key)
{
- muscle_entry probe;
- muscle_entry *result = NULL;
-
- probe.key = key;
- result = hash_lookup (muscle_table, &probe);
- if (result)
+ muscle_entry *entry = muscle_lookup (key);
+ if (entry)
{
- aver (result->value == result->storage);
- return result->storage;
+ aver (entry->value == entry->storage);
+ return entry->storage;
}
return NULL;
}
-/* In the format `file_name:line.column', append BOUND to MUSCLE. Use
+/* In the format 'file_name:line.column', append BOUND to MUSCLE. Use
digraphs for special characters in the file name. */
static void
}
-/* In the format `[[file_name:line.column]], [[file_name:line.column]]',
+/* In the format '[[file_name:line.column]], [[file_name:line.column]]',
append LOC to MUSCLE. Use digraphs for special characters in each
file name. */
{ "lr.keep-unreachable-states", "lr.keep-unreachable-state", },
{ "lr.keep_unreachable_states", "lr.keep-unreachable-state", },
{ "namespace", "api.namespace", },
+ { "stype", "api.value.type", },
{ "variant=", "api.value.type=variant", },
{ "variant=true", "api.value.type=variant", },
{ NULL, NULL, }
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,
+ /* %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,
quote (*variablep), quote_n (1, value));
i += SUB_INDENT;
for (values = variablep + 1; *values; ++values)
- complain_indent (&loc, complaint | no_caret, &i,
+ complain_indent (&loc, complaint | no_caret | silent, &i,
_("accepted value: %s"), quote (*values));
}
else
}
-/*----------------------------------------------------------------.
-| Output the definition of all the current muscles into a list of |
-| m4_defines. |
-`----------------------------------------------------------------*/
-
void
muscles_m4_output (FILE *out)
{
projects / bison.git / blobdiff