/* 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.
{
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
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)
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);
}
-/*------------------------------------------------------------.
-| 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;
- 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);
}
+ else
+ {
+ /* First insertion in the hash. */
+ entry = muscle_entry_new (key);
+ entry->value = entry->storage = xstrdup (val);
+ }
}
/*------------------------------------------------------------------.
obstack_quote (&muscle_obstack,
quotearg_style (c_quoting_style, loc.start.file));
obstack_sgrow (&muscle_obstack, ")[");
- obstack_1grow (&muscle_obstack, 0);
- extension = obstack_finish (&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)
+void
+muscle_pair_list_grow (const char *muscle,
+ const char *a1, const char *a2)
{
char *pair;
obstack_sgrow (&muscle_obstack, "[");
obstack_sgrow (&muscle_obstack, ", ");
obstack_quote (&muscle_obstack, a2);
obstack_sgrow (&muscle_obstack, "]");
- obstack_1grow (&muscle_obstack, 0);
- pair = obstack_finish (&muscle_obstack);
+ pair = obstack_finish0 (&muscle_obstack);
muscle_grow (muscle, pair, ",\n");
obstack_free (&muscle_obstack, pair);
}
-/*----------------------------------------------------------------------------.
-| 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
char *extension;
obstack_sgrow (&muscle_obstack, "[[");
obstack_escape (&muscle_obstack, bound.file);
- obstack_1grow (&muscle_obstack, ':');
- obstack_printf (&muscle_obstack, "%d", bound.line);
- obstack_1grow (&muscle_obstack, '.');
- obstack_printf (&muscle_obstack, "%d", bound.column);
- obstack_sgrow (&muscle_obstack, "]]");
- obstack_1grow (&muscle_obstack, '\0');
- extension = obstack_finish (&muscle_obstack);
+ obstack_printf (&muscle_obstack, ":%d.%d]]", bound.line, bound.column);
+ extension = obstack_finish0 (&muscle_obstack);
muscle_grow (key, extension, "");
obstack_free (&muscle_obstack, extension);
}
-/* 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. */
static char *
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 {
{
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, "]]", "");
}
+
+/** Return an allocated string that represents the %define directive
+ that performs the assignment.
+
+ @param assignment "VAR", or "VAR=VAL".
+ @param value default value if VAL \a assignment has no '='.
+
+ For instance:
+ "foo", NULL => "%define foo"
+ "foo", "baz" => "%define foo baz"
+ "foo=bar", NULL => "%define foo bar"
+ "foo=bar", "baz" => "%define foo bar"
+ "foo=", NULL => "%define foo"
+ "foo=", "baz" => "%define foo"
+ */
+
+static
+char *
+define_directive (char const *assignment, char const *value)
+{
+ char *eq = strchr (assignment, '=');
+ char const *fmt = !eq && value && *value ? "%%define %s %s" : "%%define %s";
+ char *res = xmalloc (strlen (fmt) + strlen (assignment)
+ + (value ? strlen (value) : 0));
+ sprintf (res, fmt, assignment, value);
+ eq = strchr (res, '=');
+ if (eq)
+ *eq = eq[1] ? ' ' : '\0';
+ return res;
+}
+
/** If the \a variable name is obsolete, return the name to use,
- * otherwise \a variable. */
+ * otherwise \a variable. If the \a value is obsolete, update it too.
+ *
+ * Allocates the returned value. */
static
-char const *
-muscle_percent_variable_update (char const *variable)
+char *
+muscle_percent_variable_update (char const *variable, location variable_loc,
+ char const **value)
{
typedef struct
{
const conversion_type conversion[] =
{
{ "api.push_pull", "api.push-pull", },
- { "lr.keep_unreachable_states", "lr.keep-unreachable-states", },
+ { "api.tokens.prefix", "api.token.prefix", },
+ { "lex_symbol", "api.token.constructor", },
+ { "location_type", "api.location.type", },
+ { "lr.default-reductions", "lr.default-reduction", },
+ { "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 *res = variable;
- int i;
- for (i = 0; i < ARRAY_CARDINALITY (conversion); ++i)
- if (STREQ (conversion[i].obsolete, variable))
- {
- res = conversion[i].updated;
- break;
- }
- return res;
+ conversion_type const *c;
+ for (c = conversion; c->obsolete; ++c)
+ {
+ char const *eq = strchr (c->obsolete, '=');
+ if (eq
+ ? (!strncmp (c->obsolete, variable, eq - c->obsolete)
+ && STREQ (eq + 1, *value))
+ : STREQ (c->obsolete, variable))
+ {
+ char *old = define_directive (c->obsolete, *value);
+ char *upd = define_directive (c->updated, *value);
+ deprecated_directive (&variable_loc, old, upd);
+ free (old);
+ free (upd);
+ char *res = xstrdup (c->updated);
+ {
+ char *eq2 = strchr (res, '=');
+ if (eq2)
+ {
+ *eq2 = '\0';
+ *value = eq2 + 1;
+ }
+ }
+ return res;
+ }
+ }
+ return xstrdup (variable);
}
void
muscle_percent_define_how how)
{
/* Backward compatibility. */
- char const *variable = muscle_percent_variable_update (var);
+ char *variable = muscle_percent_variable_update (var, variable_loc, &value);
char const *name = UNIQSTR_CONCAT ("percent_define(", variable, ")");
char const *loc_name = UNIQSTR_CONCAT ("percent_define_loc(", variable, ")");
char const *syncline_name =
if (how == MUSCLE_PERCENT_DEFINE_GRAMMAR_FILE
&& muscle_find_const (name))
{
+ muscle_percent_define_how how_old = atoi (muscle_find_const (how_name));
unsigned i = 0;
- muscle_percent_define_how how_old =
- atoi (muscle_find_const (how_name));
if (how_old == MUSCLE_PERCENT_DEFINE_F)
- return;
- complain_at_indent (variable_loc, &i,
- _("%%define variable %s redefined"), quote (variable));
+ goto end;
+ complain_indent (&variable_loc, complaint, &i,
+ _("%%define variable %s redefined"),
+ quote (variable));
i += SUB_INDENT;
- complain_at_indent (muscle_percent_define_get_loc (variable), &i,
- _("previous definition"));
+ location loc = muscle_percent_define_get_loc (variable);
+ complain_indent (&loc, complaint, &i, _("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);
+ end:
+ free (variable);
}
-char *
-muscle_percent_define_get (char const *variable)
+/* 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 *name;
- char const *usage_name;
- char *value;
+ char const *name = UNIQSTR_CONCAT ("percent_define(", variable, ")");
+ char const *val = value ? "" : "false";
- name = UNIQSTR_CONCAT ("percent_define(", variable, ")");
- usage_name = UNIQSTR_CONCAT ("percent_define_bison_variables(",
- variable, ")");
+ /* Don't complain is VARIABLE is already defined, but be sure to set
+ its value to VAL. */
+ if (!muscle_find_const (name))
+ muscle_percent_define_insert (variable, loc, val,
+ MUSCLE_PERCENT_DEFINE_GRAMMAR_FILE);
+ if (muscle_percent_define_flag_if (variable) != value)
+ muscle_percent_define_insert (variable, loc, val,
+ MUSCLE_PERCENT_DEFINE_GRAMMAR_FILE);
+}
- muscle_insert (usage_name, "");
- value = string_decode (name);
+char *
+muscle_percent_define_get (char const *variable)
+{
+ 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(_("%s: undefined %%define variable %s"),
- "muscle_percent_define_get_loc", quote (variable));
+ complain (NULL, 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(_("%s: undefined %%define variable %s"),
- "muscle_percent_define_get_syncline", quote (variable));
+ complain (NULL, 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"),
- quote (variable));
+ location loc = muscle_percent_define_get_loc (variable);
+ complain (&loc, complaint,
+ _("invalid value for %%define Boolean variable %s"),
+ quote (variable));
}
free (value);
}
else
- fatal(_("%s: undefined %%define variable %s"),
- "muscle_percent_define_flag", quote (variable));
+ complain (NULL, 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 = 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)
{
unsigned i = 0;
location loc = muscle_percent_define_get_loc (*variablep);
- complain_at_indent (loc, &i,
- _("invalid value for %%define variable %s: %s"),
- quote (*variablep), quote_n (1, value));
+ complain_indent (&loc, complaint, &i,
+ _("invalid value for %%define variable %s: %s"),
+ quote (*variablep), quote_n (1, value));
i += SUB_INDENT;
for (values = variablep + 1; *values; ++values)
- complain_at_indent (loc, &i, _("accepted value: %s"),
- quote (*values));
+ complain_indent (&loc, complaint | no_caret | silent, &i,
+ _("accepted value: %s"), quote (*values));
}
else
{
free (value);
}
else
- fatal (_("%s: undefined %%define variable %s"),
- "muscle_percent_define_check_values", quote (*variablep));
+ complain (NULL, 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;
}
}
-/*----------------------------------------------------------------.
-| Output the definition of all the current muscles into a list of |
-| m4_defines. |
-`----------------------------------------------------------------*/
-
void
muscles_m4_output (FILE *out)
{
projects / bison.git / blobdiff