X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/f1886bb2808a471b18e1416e0f821d08850d116e..b50d2359d7608270561abd5c3cbf6e84834c2019:/data/c.m4 diff --git a/data/c.m4 b/data/c.m4 index 785f9e11..03f20ff7 100644 --- a/data/c.m4 +++ b/data/c.m4 @@ -1,7 +1,7 @@ m4_divert(-1) -*- Autoconf -*- # C M4 Macros for Bison. -# Copyright (C) 2002 Free Software Foundation, Inc. +# Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc. # 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 @@ -15,18 +15,18 @@ m4_divert(-1) -*- Autoconf -*- # 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., 59 Temple Place, Suite 330, Boston, MA -# 02111-1307 USA +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +# 02110-1301 USA -## ----------- ## -## Copyright. ## -## ----------- ## +## ---------------- ## +## Identification. ## +## ---------------- ## # b4_copyright(TITLE, YEARS) # -------------------------- m4_define([b4_copyright], -[/* A Bison parser, made from b4_filename, by GNU bison b4_version. */ +[/* A Bison parser, made by GNU Bison b4_version. */ /* $1, Copyright (C) $2 Free Software Foundation, Inc. @@ -43,8 +43,58 @@ m4_define([b4_copyright], You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */]) + Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. */]) + + +# b4_identification +# ----------------- +m4_define([b4_identification], +[/* Identify Bison output. */ +[#]define YYBISON 1 + +/* Bison version. */ +[#]define YYBISON_VERSION "b4_version" + +/* Skeleton name. */ +[#]define YYSKELETON_NAME b4_skeleton + +/* Pure parsers. */ +[#]define YYPURE b4_pure + +/* Using locations. */ +[#]define YYLSP_NEEDED b4_locations_flag +]) + + + +## ---------------- ## +## Default values. ## +## ---------------- ## + +m4_define_default([b4_epilogue], []) + + + +## ------------------------ ## +## Pure/impure interfaces. ## +## ------------------------ ## + + +# b4_user_args +# ------------ +m4_define([b4_user_args], +[m4_ifset([b4_parse_param], [, b4_c_args(b4_parse_param)])]) + + +# b4_parse_param +# -------------- +# If defined, b4_parse_param arrives double quoted, but below we prefer +# it to be single quoted. +m4_define_default([b4_parse_param]) +m4_define([b4_parse_param], +b4_parse_param)) + ## ------------ ## @@ -67,12 +117,12 @@ m4_define([b4_int_type], [m4_if(b4_ints_in($@, [0], [255]), [1], [unsigned char], b4_ints_in($@, [-128], [127]), [1], [signed char], - b4_ints_in($@, [0], [65535]), [1], [unsigned short], - b4_ints_in($@, [-32768], [32767]), [1], [short], + b4_ints_in($@, [0], [65535]), [1], [unsigned short int], + b4_ints_in($@, [-32768], [32767]), [1], [short int], m4_eval([0 <= $1]), [1], [unsigned int], - [int])]) + [int])]) # b4_int_type_for(NAME) @@ -88,6 +138,15 @@ m4_define([b4_int_type_for], ## ------------------ ## +# b4_error_verbose_if(IF-TRUE, IF-FALSE) +# -------------------------------------- +# Expand IF-TRUE, if errors are verbose, IF-FALSE otherwise. +m4_define([b4_error_verbose_if], +[m4_if(b4_error_verbose, [1], + [$1], + [$2])]) + + # b4_location_if(IF-TRUE, IF-FALSE) # --------------------------------- # Expand IF-TRUE, if locations are used, IF-FALSE otherwise. @@ -119,6 +178,16 @@ m4_define([b4_token_define], ]) +# b4_token_defines(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER) +# ------------------------------------------------------- +# Output the definition of the tokens (if there are) as #defines. +m4_define([b4_token_defines], +[m4_if([$@], [[]], [], +[/* Tokens. */ +m4_map([b4_token_define], [$@])]) +]) + + # b4_token_enum(TOKEN-NAME, TOKEN-NUMBER) # --------------------------------------- # Output the definition of this token as an enum. @@ -126,10 +195,10 @@ m4_define([b4_token_enum], [$1 = $2]) -# b4_token_defines(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER) -# ------------------------------------------------------- -# Output the definition of the tokens (if there are) as enums and #define. -m4_define([b4_token_defines], +# b4_token_enums(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER) +# ----------------------------------------------------- +# Output the definition of the tokens (if there are) as enums. +m4_define([b4_token_enums], [m4_if([$@], [[]], [], [/* Tokens. */ #ifndef YYTOKENTYPE @@ -142,8 +211,14 @@ m4_map_sep([ b4_token_enum], [, [$@]) }; #endif -m4_map([b4_token_define], [$@]) -]) +])]) + + +# b4_token_enums_defines(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER) +# ------------------------------------------------------------- +# Output the definition of the tokens (if there are) as enums and #defines. +m4_define([b4_token_enums_defines], +[b4_token_enums($@)b4_token_defines($@) ]) @@ -261,3 +336,114 @@ m4_define([b4_c_args], m4_define([b4_c_arg], [$2]) + + +## ----------- ## +## Synclines. ## +## ----------- ## + + +# b4_syncline(LINE, FILE) +# ----------------------- +m4_define([b4_syncline], +[m4_if(b4_synclines_flag, 1, + [[#]line $1 $2])]) + + +# b4_symbol_actions(FILENAME, LINENO, +# SYMBOL-TAG, SYMBOL-NUM, +# SYMBOL-ACTION, SYMBOL-TYPENAME) +# ------------------------------------------------- +m4_define([b4_symbol_actions], +[m4_pushdef([b4_dollar_dollar], + [m4_ifval([$6], [(yyvaluep->$6)], [(*yyvaluep)])])dnl +m4_pushdef([b4_at_dollar], [(*yylocationp)])dnl + case $4: /* $3 */ +b4_syncline([$2], [$1]) + $5; +b4_syncline([@oline@], [@ofile@]) + break; +m4_popdef([b4_at_dollar])dnl +m4_popdef([b4_dollar_dollar])dnl +]) + + +# b4_yydestruct_generate(FUNCTION-DECLARATOR) +# ------------------------------------------- +# Generate the "yydestruct" function, which declaration is issued using +# FUNCTION-DECLARATOR, which may be "b4_c_ansi_function_def" for ISO C +# or "b4_c_function_def" for K&R. +m4_define_default([b4_yydestruct_generate], +[[/*-----------------------------------------------. +| Release the memory associated to this symbol. | +`-----------------------------------------------*/ + +]$1([yydestruct], + [static void], + [[const char *yymsg], [yymsg]], + [[int yytype], [yytype]], + [[YYSTYPE *yyvaluep], [yyvaluep]]b4_location_if([, + [[YYLTYPE *yylocationp], [yylocationp]]]))[ +{ + /* Pacify ``unused variable'' warnings. */ + (void) yyvaluep; +]b4_location_if([ (void) yylocationp; +])[ + if (!yymsg) + yymsg = "Deleting"; + YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp); + + switch (yytype) + { +]m4_map([b4_symbol_actions], m4_defn([b4_symbol_destructors]))[ + default: + break; + } +}]dnl +]) + + +# b4_yysymprint_generate(FUNCTION-DECLARATOR) +# ------------------------------------------- +# Generate the "yysymprint" function, which declaration is issued using +# FUNCTION-DECLARATOR, which may be "b4_c_ansi_function_def" for ISO C +# or "b4_c_function_def" for K&R. +m4_define_default([b4_yysymprint_generate], +[[/*--------------------------------. +| Print this symbol on YYOUTPUT. | +`--------------------------------*/ + +]$1([yysymprint], + [static void], + [[FILE *yyoutput], [yyoutput]], + [[int yytype], [yytype]], + [[YYSTYPE *yyvaluep], [yyvaluep]]b4_location_if([, + [[YYLTYPE *yylocationp], [yylocationp]]])) +{ + /* Pacify ``unused variable'' warnings. */ + (void) yyvaluep; +b4_location_if([ (void) yylocationp; +])dnl +[ + if (yytype < YYNTOKENS) + YYFPRINTF (yyoutput, "token %s (", yytname[yytype]); + else + YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]); + +]b4_location_if([ YY_LOCATION_PRINT (yyoutput, *yylocationp); + YYFPRINTF (yyoutput, ": "); +])dnl +[ +# ifdef YYPRINT + if (yytype < YYNTOKENS) + YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep); +# endif + switch (yytype) + { +]m4_map([b4_symbol_actions], m4_defn([b4_symbol_printers]))dnl +[ default: + break; + } + YYFPRINTF (yyoutput, ")"); +} +]])