This file is part of Bison, the GNU Compiler Compiler.
- This program is free software; you can redistribute it and/or modify
+ This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301 USA
-*/
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include "system.h"
PERCENT_OUTPUT "%output"
PERCENT_PARSE_PARAM "%parse-param"
PERCENT_PURE_PARSER "%pure-parser"
- PERCENT_PUSH_PARSER "%push-parser"
- PERCENT_PUSH_PULL_PARSER
- "%push-pull-parser"
PERCENT_REQUIRE "%require"
PERCENT_SKELETON "%skeleton"
PERCENT_START "%start"
code_props_plain_init (&plain_code, $1, @1);
code_props_translate_code (&plain_code);
gram_scanner_last_string_free ();
- prologue_augment (plain_code.code, @1, union_seen);
+ muscle_code_grow (union_seen ? "post_prologue" : "pre_prologue",
+ plain_code.code, @1);
code_scanner_last_string_free ();
}
| "%debug" { debug_flag = true; }
| "%define" variable content.opt
{
- char const name_prefix[] = "percent_define_";
- char *name = xmalloc (sizeof name_prefix + strlen ($2));
- strcpy (name, name_prefix);
- strcpy (name + sizeof name_prefix - 1, $2);
- if (muscle_find_const (name))
- warn_at (@2, _("%s `%s' redefined"), "%define variable", $2);
- MUSCLE_INSERT_STRING (uniqstr_new (name), $3);
- free (name);
- muscle_grow_user_name_list ("user_percent_define_variables", $2, @2);
+ muscle_percent_define_insert ($2, @2, $3);
}
| "%defines" { defines_flag = true; }
| "%defines" STRING
| "%output" STRING { spec_outfile = $2; }
| "%output" "=" STRING { spec_outfile = $3; } /* deprecated */
| "%parse-param" "{...}" { add_param ("parse_param", $2, @2); }
-| "%pure-parser" { pure_parser = true; }
-| "%push-parser" { push_parser = true; pull_parser = false; }
-| "%push-pull-parser" { push_parser = true; pull_parser = true; }
+| "%pure-parser"
+ {
+ /* %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 ("percent_define(api.pure)"))
+ muscle_percent_define_insert ("api.pure", @1, "");
+ /* 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 ("api.pure"))
+ muscle_percent_define_insert ("api.pure", @1, "");
+ }
| "%require" STRING { version_check (&@2, $2); }
-| "%skeleton" STRING { skeleton_arg ($2, 1, &@1); }
+| "%skeleton" STRING
+ {
+ char const *skeleton_user = $2;
+ if (strchr (skeleton_user, '/'))
+ {
+ size_t dir_length = strlen (current_file);
+ char *skeleton_build;
+ while (dir_length && current_file[dir_length - 1] != '/')
+ --dir_length;
+ while (dir_length && current_file[dir_length - 1] == '/')
+ --dir_length;
+ skeleton_build =
+ xmalloc (dir_length + 1 + strlen (skeleton_user) + 1);
+ if (dir_length > 0)
+ {
+ strncpy (skeleton_build, current_file, dir_length);
+ skeleton_build[dir_length++] = '/';
+ }
+ strcpy (skeleton_build + dir_length, skeleton_user);
+ skeleton_user = uniqstr_new (skeleton_build);
+ free (skeleton_build);
+ }
+ skeleton_arg (skeleton_user, 1, &@1);
+ }
| "%token-table" { token_table_flag = true; }
-| "%verbose" { report_flag = report_states; }
+| "%verbose" { report_flag |= report_states; }
| "%yacc" { yacc_flag = true; }
| /*FIXME: Err? What is this horror doing here? */ ";"
;
}
| "%code" braceless
{
- muscle_code_grow ("percent_code", $2, @2);
+ /* Do not invoke muscle_percent_code_grow here since it invokes
+ muscle_user_name_list_grow. */
+ muscle_code_grow ("percent_code()", $2, @2);
code_scanner_last_string_free ();
}
| "%code" ID braceless
{
- char const name_prefix[] = "percent_code_";
- char *name = xmalloc (sizeof name_prefix + strlen ($2));
- strcpy (name, name_prefix);
- strcpy (name + sizeof name_prefix - 1, $2);
- muscle_code_grow (uniqstr_new (name), $3, @3);
- free (name);
+ muscle_percent_code_grow ($2, @2, $3, @3);
code_scanner_last_string_free ();
- muscle_grow_user_name_list ("user_percent_code_qualifiers", $2, @2);
}
;
;
grammar_declaration:
- "%union" union_name "{...}"
+ "%union" union_name braceless
{
- char const *body = $3;
-
- /* Concatenate the %union bodies. If this is the first %union, make sure
- the synchronization line appears after the opening '{' so as not to
- confuse Doxygen. Otherwise, turn the previous %union's trailing '}'
- into '\n', and omit the new %union's leading '{'. */
- if (!union_seen)
- {
- muscle_grow ("stype", "{", "");
- }
- else
- {
- char *code = muscle_find ("stype");
- code[strlen (code) - 1] = '\n';
- }
- body++;
-
union_seen = true;
- muscle_code_grow ("stype", body, @3);
- gram_scanner_last_string_free ();
+ muscle_code_grow ("stype", $3, @3);
+ code_scanner_last_string_free ();
}
;
| STRING { $$ = uniqstr_new ($1); } /* deprecated and not M4-friendly */
;
-/* Some content or "1" by default. */
+/* Some content or empty by default. */
content.opt:
/* Nothing. */
{
- static char one[] = "1";
- $$ = one;
+ $$ = "";
}
| STRING
;
projects / bison.git / blobdiff