%{/* Bison Grammar Parser -*- C -*-
- Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
02110-1301 USA
*/
+#include <config.h>
#include "system.h"
#include "complain.h"
#include "getargs.h"
#include "gram.h"
#include "muscle_tab.h"
-#include "output.h"
#include "quotearg.h"
#include "reader.h"
#include "symlist.h"
+#include "scan-gram.h"
+#include "scan-code.h"
#include "strverscmp.h"
#define YYLLOC_DEFAULT(Current, Rhs, N) (Current) = lloc_default (Rhs, N)
static YYLTYPE lloc_default (YYLTYPE const *, int);
#define YY_LOCATION_PRINT(File, Loc) \
- location_print (File, Loc)
+ location_print (File, Loc)
static void version_check (location const *loc, char const *version);
FIXME: depends on the undocumented availability of YYLLOC. */
#undef yyerror
#define yyerror(Msg) \
- gram_error (&yylloc, Msg)
+ gram_error (&yylloc, Msg)
static void gram_error (location const *, char const *);
static void add_param (char const *, char *, location);
static symbol_class current_class = unknown_sym;
static uniqstr current_type = 0;
-symbol *current_lhs;
-location current_lhs_location;
-assoc current_assoc;
+static symbol *current_lhs;
+static location current_lhs_location;
static int current_prec = 0;
+
+#ifdef UINT_FAST8_MAX
+# define YYTYPE_UINT8 uint_fast8_t
+#endif
+#ifdef INT_FAST8_MAX
+# define YYTYPE_INT8 int_fast8_t
+#endif
+#ifdef UINT_FAST16_MAX
+# define YYTYPE_UINT16 uint_fast16_t
+#endif
+#ifdef INT_FAST16_MAX
+# define YYTYPE_INT16 int_fast16_t
+#endif
%}
%debug
{
/* Bison's grammar can initial empty locations, hence a default
location is needed. */
- @$.start.file = @$.end.file = current_file;
- @$.start.line = @$.end.line = 1;
- @$.start.column = @$.end.column = 0;
+ boundary_set (&@$.start, current_file, 1, 0);
+ boundary_set (&@$.end, current_file, 1, 0);
}
/* Only NUMBERS have a value. */
%token PERCENT_NTERM "%nterm"
%token PERCENT_TYPE "%type"
-%token PERCENT_DESTRUCTOR "%destructor {...}"
-%token PERCENT_PRINTER "%printer {...}"
+%token PERCENT_DESTRUCTOR "%destructor"
+%token PERCENT_PRINTER "%printer"
%token PERCENT_UNION "%union {...}"
PERCENT_EXPECT_RR "%expect-rr"
PERCENT_FILE_PREFIX "%file-prefix"
PERCENT_GLR_PARSER "%glr-parser"
- PERCENT_INITIAL_ACTION "%initial-action {...}"
- PERCENT_LEX_PARAM "%lex-param {...}"
+ PERCENT_INITIAL_ACTION "%initial-action"
+ PERCENT_LEX_PARAM "%lex-param"
PERCENT_LOCATIONS "%locations"
PERCENT_NAME_PREFIX "%name-prefix"
PERCENT_NO_DEFAULT_PREC "%no-default-prec"
PERCENT_NO_LINES "%no-lines"
PERCENT_NONDETERMINISTIC_PARSER
- "%nondeterministic-parser"
+ "%nondeterministic-parser"
PERCENT_OUTPUT "%output"
- PERCENT_PARSE_PARAM "%parse-param {...}"
+ PERCENT_PARSE_PARAM "%parse-param"
PERCENT_PURE_PARSER "%pure-parser"
- PERCENT_REQUIRE "%require"
+ PERCENT_REQUIRE "%require"
PERCENT_SKELETON "%skeleton"
PERCENT_START "%start"
PERCENT_TOKEN_TABLE "%token-table"
%token EPILOGUE "epilogue"
%token BRACED_CODE "{...}"
-
%type <chars> STRING string_content
- "%destructor {...}"
- "%initial-action {...}"
- "%lex-param {...}"
- "%parse-param {...}"
- "%printer {...}"
+ "{...}"
"%union {...}"
- BRACED_CODE action
PROLOGUE EPILOGUE
%printer { fprintf (stderr, "\"%s\"", $$); }
- STRING string_content
+ STRING string_content
%printer { fprintf (stderr, "{\n%s\n}", $$); }
- "%destructor {...}"
- "%initial-action {...}"
- "%lex-param {...}"
- "%parse-param {...}"
- "%printer {...}"
+ "{...}"
"%union {...}"
- BRACED_CODE action
PROLOGUE EPILOGUE
%type <uniqstr> TYPE
%printer { fprintf (stderr, "<%s>", $$); } TYPE
%type <integer> INT
%printer { fprintf (stderr, "%d", $$); } INT
%type <symbol> ID symbol string_as_id
-%printer { fputs ($$->tag, stderr); } ID symbol string_as_id
+%printer { fprintf (stderr, "%s", $$->tag); } ID symbol string_as_id
%type <symbol> ID_COLON
%printer { fprintf (stderr, "%s:", $$->tag); } ID_COLON
%type <assoc> precedence_declarator
declaration:
grammar_declaration
-| PROLOGUE { prologue_augment ($1, @1); }
+| PROLOGUE { prologue_augment (translate_code ($1, @1),
+ @1); }
| "%debug" { debug_flag = true; }
-| "%define" string_content { muscle_insert ($2, "1"); }
+| "%define" string_content
+ {
+ static char one[] = "1";
+ muscle_insert ($2, one);
+ }
| "%define" string_content string_content { muscle_insert ($2, $3); }
| "%defines" { defines_flag = true; }
| "%error-verbose" { error_verbose = true; }
| "%expect-rr" INT { expected_rr_conflicts = $2; }
| "%file-prefix" "=" string_content { spec_file_prefix = $3; }
| "%glr-parser"
- {
- nondeterministic_parser = true;
- glr_parser = true;
- }
-| "%initial-action {...}"
- {
- muscle_code_grow ("initial_action", $1, @1);
- }
-| "%lex-param {...}" { add_param ("lex_param", $1, @1); }
+ {
+ nondeterministic_parser = true;
+ glr_parser = true;
+ }
+| "%initial-action" "{...}"
+ {
+ muscle_code_grow ("initial_action", translate_symbol_action ($2, @2), @2);
+ }
+| "%lex-param" "{...}" { add_param ("lex_param", $2, @2); }
| "%locations" { locations_flag = true; }
| "%name-prefix" "=" string_content { spec_name_prefix = $3; }
| "%no-lines" { no_lines_flag = true; }
| "%nondeterministic-parser" { nondeterministic_parser = true; }
| "%output" "=" string_content { spec_outfile = $3; }
-| "%parse-param {...}" { add_param ("parse_param", $1, @1); }
+| "%parse-param" "{...}" { add_param ("parse_param", $2, @2); }
| "%pure-parser" { pure_parser = true; }
| "%require" string_content { version_check (&@2, $2); }
| "%skeleton" string_content { skeleton = $2; }
}
| "%union {...}"
{
+ char const *body = $1;
+
+ if (typed)
+ {
+ /* Concatenate the union bodies, turning the first one's
+ trailing '}' into '\n', and omitting the second one's '{'. */
+ char *code = muscle_find ("stype");
+ code[strlen (code) - 1] = '\n';
+ body++;
+ }
+
typed = true;
- MUSCLE_INSERT_INT ("stype_line", @1.start.line);
- muscle_insert ("stype", $1);
+ muscle_code_grow ("stype", body, @1);
}
-| "%destructor {...}" symbols.1
+| "%destructor" "{...}" symbols.1
{
symbol_list *list;
- for (list = $2; list; list = list->next)
- symbol_destructor_set (list->sym, $1, @1);
- symbol_list_free ($2);
+ const char *action = translate_symbol_action ($2, @2);
+ for (list = $3; list; list = list->next)
+ symbol_destructor_set (list->sym, action, @2);
+ symbol_list_free ($3);
}
-| "%printer {...}" symbols.1
+| "%printer" "{...}" symbols.1
{
symbol_list *list;
- for (list = $2; list; list = list->next)
- symbol_printer_set (list->sym, $1, list->location);
- symbol_list_free ($2);
+ const char *action = translate_symbol_action ($2, @2);
+ for (list = $3; list; list = list->next)
+ symbol_printer_set (list->sym, action, @2);
+ symbol_list_free ($3);
}
| "%default-prec"
{
;
/* One or more nonterminals to be %typed. */
-
symbols.1:
symbol { $$ = symbol_list_new ($1, @1); }
| symbols.1 symbol { $$ = symbol_list_prepend ($1, $2, @2); }
}
| ID
{
- symbol_class_set ($1, current_class, @1);
+ symbol_class_set ($1, current_class, @1, true);
symbol_type_set ($1, current_type, @1);
}
| ID INT
{
- symbol_class_set ($1, current_class, @1);
+ symbol_class_set ($1, current_class, @1, true);
symbol_type_set ($1, current_type, @1);
symbol_user_token_number_set ($1, $2, @2);
}
| ID string_as_id
{
- symbol_class_set ($1, current_class, @1);
+ symbol_class_set ($1, current_class, @1, true);
symbol_type_set ($1, current_type, @1);
symbol_make_alias ($1, $2, @$);
}
| ID INT string_as_id
{
- symbol_class_set ($1, current_class, @1);
+ symbol_class_set ($1, current_class, @1, true);
symbol_type_set ($1, current_type, @1);
symbol_user_token_number_set ($1, $2, @2);
symbol_make_alias ($1, $3, @$);
rules_or_grammar_declaration:
rules
| grammar_declaration ";"
- {
- if (yacc_flag)
- complain_at (@$, _("POSIX forbids declarations in the grammar"));
- }
| error ";"
{
yyerrok;
;
rhses.1:
- rhs { grammar_rule_end (@1); }
-| rhses.1 "|" rhs { grammar_rule_end (@3); }
+ rhs { grammar_current_rule_end (@1); }
+| rhses.1 "|" rhs { grammar_current_rule_end (@3); }
| rhses.1 ";"
;
rhs:
/* Nothing. */
- { grammar_rule_begin (current_lhs, current_lhs_location); }
+ { grammar_current_rule_begin (current_lhs, current_lhs_location); }
| rhs symbol
{ grammar_current_rule_symbol_append ($2, @2); }
-| rhs action
- { grammar_current_rule_action_append ($2, @2); }
+| rhs "{...}"
+ { grammar_current_rule_action_append (gram_last_string,
+ gram_last_braced_code_loc); }
| rhs "%prec" symbol
{ grammar_current_rule_prec_set ($3, @3); }
| rhs "%dprec" INT
| string_as_id { $$ = $1; }
;
-action:
- BRACED_CODE
- { $$ = $1; }
-;
-
/* A string used as an ID: quote it. */
string_as_id:
STRING
{
$$ = symbol_get (quotearg_style (c_quoting_style, $1), @1);
- symbol_class_set ($$, token_sym, @1);
+ symbol_class_set ($$, token_sym, @1, false);
}
;
/* Nothing. */
| "%%" EPILOGUE
{
- muscle_code_grow ("epilogue", $2, @2);
- scanner_last_string_free ();
+ muscle_code_grow ("epilogue", translate_code ($2, @2), @2);
+ gram_scanner_last_string_free ();
}
;
free (name);
}
- scanner_last_string_free ();
+ gram_scanner_last_string_free ();
}
static void
version_check (location const *loc, char const *version)
{
if (strverscmp (version, PACKAGE_VERSION) > 0)
- complain_at (*loc, "require bison %s, but have %s",
- version, PACKAGE_VERSION);
+ {
+ complain_at (*loc, "require bison %s, but have %s",
+ version, PACKAGE_VERSION);
+ exit (63);
+ }
}
static void
projects / bison.git / blobdiff