#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)
{
/* 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_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_SKELETON "%skeleton"
%token EPILOGUE "epilogue"
%token BRACED_CODE "{...}"
-
%type <chars> STRING string_content
- "%destructor {...}"
- "%initial-action {...}"
- "%lex-param {...}"
- "%parse-param {...}"
- "%printer {...}"
+ "{...}"
"%union {...}"
PROLOGUE EPILOGUE
%printer { fprintf (stderr, "\"%s\"", $$); }
STRING string_content
%printer { fprintf (stderr, "{\n%s\n}", $$); }
- "%destructor {...}"
- "%initial-action {...}"
- "%lex-param {...}"
- "%parse-param {...}"
- "%printer {...}"
+ "{...}"
"%union {...}"
PROLOGUE EPILOGUE
%type <uniqstr> TYPE
declaration:
grammar_declaration
-| PROLOGUE { prologue_augment ($1, @1); }
+| PROLOGUE { prologue_augment (translate_code ($1, @1),
+ @1); }
| "%debug" { debug_flag = true; }
| "%define" string_content
{
nondeterministic_parser = true;
glr_parser = true;
}
-| "%initial-action {...}"
+| "%initial-action" "{...}"
{
- muscle_code_grow ("initial_action", $1, @1);
+ muscle_code_grow ("initial_action", translate_symbol_action ($2, @2), @2);
}
-| "%lex-param {...}" { add_param ("lex_param", $1, @1); }
+| "%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; }
typed = true;
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, @1);
- 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); }
{ grammar_current_rule_begin (current_lhs, current_lhs_location); }
| rhs symbol
{ grammar_current_rule_symbol_append ($2, @2); }
-| rhs action
+| 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; }
;
-/* Handle the semantics of an action specially, with a mid-rule
- action, so that grammar_current_rule_action_append is invoked
- immediately after the braced code is read by the scanner.
-
- This implementation relies on the LALR(1) parsing algorithm.
- If grammar_current_rule_action_append were executed in a normal
- action for this rule, then when the input grammar contains two
- successive actions, the scanner would have to read both actions
- before reducing this rule. That wouldn't work, since the scanner
- relies on all preceding input actions being processed by
- grammar_current_rule_action_append before it scans the next
- action. */
-action:
- { grammar_current_rule_action_append (last_string, last_braced_code_loc); }
- BRACED_CODE
-;
-
/* A string used as an ID: quote it. */
string_as_id:
STRING
/* 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
projects / bison.git / blobdiff