X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/34904c575a176f45e206cc4dba4121fb445981ba..77a1a208a9ff9110f28a958c3fb630b434976e1a:/data/lalr1.cc diff --git a/data/lalr1.cc b/data/lalr1.cc index 0a190e9b..75eaf571 100644 --- a/data/lalr1.cc +++ b/data/lalr1.cc @@ -22,7 +22,7 @@ m4_include(b4_pkgdatadir/[c++.m4]) # -------------------------------------------------------------- # Declare "parser::yy_" which contents is CONTENT. m4_define([b4_integral_parser_table_declare], -[m4_ifval([$3], [b4_c_comment([$3], [ ]) +[m4_ifval([$3], [b4_comment([$3], [ ]) ])dnl static const b4_int_type_for([$2]) yy$1_[[]];dnl ]) @@ -120,10 +120,6 @@ m4_pushdef([b4_copyright_years], m4_define([b4_parser_class_name], [b4_percent_define_get([[parser_class_name]])]) -# The header is mandatory. -b4_defines_if([], - [b4_fatal([b4_skeleton[: using %%defines is mandatory]])]) - b4_locations_if([b4_percent_define_ifdef([[location_type]], [], [# Backward compatibility. m4_define([b4_location_constructors]) @@ -131,37 +127,33 @@ b4_locations_if([b4_percent_define_ifdef([[location_type]], [], m4_include(b4_pkgdatadir/[stack.hh]) b4_variant_if([m4_include(b4_pkgdatadir/[variant.hh])]) -# We do want M4 expansion after # for CPP macros. -m4_changecom() -m4_divert_push(0)dnl -@output(b4_spec_defines_file@)@ -b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++]) -[ -/** - ** \file ]b4_spec_defines_file[ - ** Define the ]b4_namespace_ref[::parser class. - */ - -/* C++ LALR(1) parser skeleton written by Akim Demaille. */ - -]b4_cpp_guard_open([b4_spec_defines_file])[ -]b4_percent_code_get([[requires]])[ +# b4_shared_declarations +# ---------------------- +# Declaration that might either go into the header (if --defines) +# or open coded in the parser body. +m4_define([b4_shared_declarations], +[b4_percent_code_get([[requires]])[ ]b4_parse_assert_if([# include ])[ -# include -# include +# include # include +# include +# include ]b4_defines_if([[ # include "stack.hh" ]b4_locations_if([b4_percent_define_ifdef([[location_type]], [], - [[# include "location.hh"]])])[ - -]b4_variant_if([b4_namespace_open -b4_variant_define -b4_namespace_close])[ + [[# include "location.hh"]])])])[ ]b4_YYDEBUG_define[ ]b4_namespace_open[ +]b4_defines_if([], +[b4_stack_define +b4_locations_if([b4_percent_define_ifdef([[location_type]], [], + [b4_position_define +b4_location_define])])])[ + +]b4_variant_if([b4_variant_define])[ + /// A Bison parser. class ]b4_parser_class_name[ { @@ -277,7 +269,7 @@ b4_namespace_close])[ inline stack_symbol_type (); /// Constructor. - inline stack_symbol_type (]b4_args([state_type s], + inline stack_symbol_type (]b4_join([state_type s], [const semantic_type& v], b4_locations_if([const location_type& l]))[); @@ -341,7 +333,30 @@ b4_public_types_define])[ #endif ])[ ]b4_percent_code_get([[provides]])[ +]]) + +# We do want M4 expansion after # for CPP macros. +m4_changecom() +b4_defines_if( +[m4_divert_push(0)dnl +@output(b4_spec_defines_file@)@ +b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++]) +[ +/** + ** \file ]b4_spec_defines_file[ + ** Define the ]b4_namespace_ref[::parser class. + */ + +/* C++ LALR(1) parser skeleton written by Akim Demaille. */ + +]b4_cpp_guard_open([b4_spec_defines_file])[ +]b4_shared_declarations[ ]b4_cpp_guard_close([b4_spec_defines_file]) +m4_divert_pop(0)dnl +]) + + +m4_divert_push(0)dnl @output(b4_parser_file_name@)@ b4_copyright([Skeleton implementation for Bison LALR(1) parsers in C++]) b4_percent_code_get([[top]])[]dnl @@ -350,17 +365,18 @@ m4_if(b4_prefix, [yy], [], // Take the name prefix into account. #define yylex b4_prefix[]lex])[ -/* First part of user declarations. */ +// First part of user declarations. ]b4_user_pre_prologue[ -#include "@basename(]b4_spec_defines_file[@)" +]b4_null_define[ + +]b4_defines_if([[#include "@basename(]b4_spec_defines_file[@)"]], + [b4_shared_declarations])[ /* User implementation prologue. */ ]b4_user_post_prologue[ ]b4_percent_code_get[ -]b4_null_define[ - #ifndef YY_ # if defined YYENABLE_NLS && YYENABLE_NLS # if ENABLE_NLS @@ -493,7 +509,7 @@ m4_if(b4_prefix, [yy], [], { } - ]b4_parser_class_name[::stack_symbol_type::stack_symbol_type (]b4_args( + ]b4_parser_class_name[::stack_symbol_type::stack_symbol_type (]b4_join( [state_type s], [const semantic_type& v], b4_locations_if([const location_type& l]))[) @@ -559,13 +575,13 @@ m4_if(b4_prefix, [yy], [], if (m) YY_SYMBOL_PRINT (m, sym); ]b4_variant_if( -[[ yystack_.push (stack_symbol_type (]b4_args( +[[ yystack_.push (stack_symbol_type (]b4_join( [s], [semantic_type()], b4_locations_if([sym.location]))[)); ]b4_symbol_variant([[yystos_[s]]], [[yystack_[0].value]], [build], [sym.value])], -[[ yystack_.push (stack_symbol_type (]b4_args( +[[ yystack_.push (stack_symbol_type (]b4_join( [s], [sym.value], b4_locations_if([sym.location]))[));]])[ @@ -577,7 +593,7 @@ m4_if(b4_prefix, [yy], [], if (m) YY_SYMBOL_PRINT (m, s); ]b4_variant_if( -[[ yystack_.push (stack_symbol_type (]b4_args( +[[ yystack_.push (stack_symbol_type (]b4_join( [s.state], [semantic_type()], b4_locations_if([s.location]))[)); @@ -705,20 +721,20 @@ b4_dollar_popdef])[]dnl { YYCDEBUG << "Reading a token: "; try - { + { ]b4_lex_symbol_if( -[ yyla = b4_c_function_call([yylex], [symbol_type], +[ yyla = b4_function_call([yylex], [symbol_type], m4_ifdef([b4_lex_param], b4_lex_param));], -[ yyla.type = yytranslate_ (b4_c_function_call([yylex], [int], +[ yyla.type = yytranslate_ (b4_function_call([yylex], [int], [b4_api_PREFIX[STYPE*], [&yyla.value]][]dnl b4_locations_if([, [[location*], [&yyla.location]]])dnl m4_ifdef([b4_lex_param], [, ]b4_lex_param)));])[ - } + } catch (const syntax_error& yyexc) - { - error (yyexc); - goto yyerrlab1; - } + { + error (yyexc); + goto yyerrlab1; + } yyempty = false; } YY_SYMBOL_PRINT ("Next token is", yyla); @@ -791,19 +807,19 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param)));])[ // Perform the reduction. YY_REDUCE_PRINT (yyn); try - { - switch (yyn) { + switch (yyn) + { ]b4_user_actions[ - default: - break; + default: + break; + } } - } catch (const syntax_error& yyexc) - { - error (yyexc); - YYERROR; - } + { + error (yyexc); + YYERROR; + } YY_SYMBOL_PRINT ("-> $$ =", yylhs); ]b4_variant_if([[ // Destroy the rhs symbols. @@ -836,7 +852,7 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param)));])[ if (!yyerrstatus_) { ++yynerrs_; - error (]b4_args(b4_locations_if([yyla.location]), + error (]b4_join(b4_locations_if([yyla.location]), [[yysyntax_error_ (yystack_[0].state, yyempty ? yyempty_ : yyla.type)]])[); } @@ -951,7 +967,7 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param)));])[ void ]b4_parser_class_name[::error (const syntax_error& yyexc) { - error (]b4_args(b4_locations_if([yyexc.location]), + error (]b4_join(b4_locations_if([yyexc.location]), [[yyexc.what()]])[); }