X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/21964f4394e980974e3e4641b570703fac370b44..4517da37570b39a3d4b3f523dd373abe7c622bb0:/data/c.m4 diff --git a/data/c.m4 b/data/c.m4 index 370d8e48..d8465107 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. @@ -43,9 +43,78 @@ 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)) + +# b4_parse_param_for(DECL, FORMAL, BODY) +# --------------------------------------- +# Iterate over the user parameters, binding the declaration to DECL, +# the formal name to FORMAL, and evaluating the BODY. +m4_define([b4_parse_param_for], +[m4_foreach([$1_$2], m4_defn([b4_parse_param]), +[m4_pushdef([$1], m4_fst($1_$2))dnl +m4_pushdef([$2], m4_shift($1_$2))dnl +$3[]dnl +m4_popdef([$2])dnl +m4_popdef([$1])dnl +])]) + +# b4_parse_param_use +# ------------------ +# `YYUSE' all the parse-params. +m4_define([b4_parse_param_use], +[b4_parse_param_for([Decl], [Formal], [ YYUSE (Formal); +])dnl +]) ## ------------ ## ## Data Types. ## @@ -65,14 +134,15 @@ m4_define([b4_ints_in], # MIN to MAX (included). m4_define([b4_int_type], [m4_if(b4_ints_in($@, [0], [255]), [1], [unsigned char], - b4_ints_in($@, [-128], [127]), [1], [yysigned_char], + b4_ints_in($@, [-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) # --------------------- @@ -82,6 +152,39 @@ m4_define([b4_int_type_for], [b4_int_type($1_min, $1_max)]) +## ------------------ ## +## Decoding options. ## +## ------------------ ## + + +# 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. +m4_define([b4_location_if], +[m4_if(b4_locations_flag, [1], + [$1], + [$2])]) + + +# b4_pure_if(IF-TRUE, IF-FALSE) +# ----------------------------- +# Expand IF-TRUE, if %pure-parser, IF-FALSE otherwise. +m4_define([b4_pure_if], +[m4_if(b4_pure, [1], + [$1], + [$2])]) + + + ## ------------------------- ## ## Assigning token numbers. ## ## ------------------------- ## @@ -94,6 +197,16 @@ m4_define([b4_token_define], ]) +# b4_token_defines(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER) +# ------------------------------------------------------- +# Output the definition of the tokens (if there are) as #defines. +m4_define([b4_token_defines], +[m4_if([$@], [[]], [], +[/* Tokens. */ +m4_map([b4_token_define], [$@])]) +]) + + # b4_token_enum(TOKEN-NAME, TOKEN-NUMBER) # --------------------------------------- # Output the definition of this token as an enum. @@ -101,10 +214,10 @@ 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 @@ -117,105 +230,264 @@ m4_map_sep([ b4_token_enum], [, [$@]) }; #endif -m4_map([b4_token_define], [$@]) -]) -]) +])]) -## --------------------- ## -## Calling C functions. ## -## --------------------- ## - - -# b4_c_function_call(NAME, RETURN-VALUE, [TYPE1, NAME1], ...) -# ----------------------------------------------------------- -# Call the function NAME with arguments NAME1, NAME2 etc. -m4_define([b4_c_function_call], -[$1 (b4_c_args(m4_shiftn(2, $@)))[]dnl +# b4_token_enums_defines(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER) +# ------------------------------------------------------------- +# Output the definition of the tokens (if there are) as enums and #defines. +m4_define([b4_token_enums_defines], +[b4_token_enums($@)b4_token_defines($@) ]) -# b4_c_args([TYPE1, NAME1], ...) -# ------------------------------ -# Output the arguments NAME1, NAME2... -m4_define([b4_c_args], -[m4_map_sep([b4_c_arg], [, ], [$@])]) - -m4_define([b4_c_arg], -[$2]) +## --------------------------------------------- ## +## Defining C functions in both K&R and ANSI-C. ## +## --------------------------------------------- ## -## ---------------------------------------------- ## -## Declaring C functions in both K&R and ANSI-C. ## -## ---------------------------------------------- ## - -# b4_c_function(NAME, RETURN-VALUE, [TYPE1, NAME1], ...) -# ------------------------------------------------------ +# b4_c_function_def(NAME, RETURN-VALUE, [DECL1, NAME1], ...) +# ---------------------------------------------------------- # Declare the function NAME. -m4_define([b4_c_function], -[$2 -#if defined (__STDC__) || defined (__cplusplus) -$1 (b4_c_ansi_args(m4_shiftn(2, $@))) +m4_define([b4_c_function_def], +[#if defined (__STDC__) || defined (__C99__FUNC__) || defined (__cplusplus) +b4_c_ansi_function_def($@) #else -$1 (b4_c_knr_arg_names(m4_shiftn(2, $@))) -b4_c_knr_arg_decls(m4_shiftn(2, $@)) +$2 +$1 (b4_c_knr_formal_names(m4_shiftn(2, $@))) +b4_c_knr_formal_decls(m4_shiftn(2, $@)) #endif[]dnl ]) -# b4_c_ansi_args([TYPE1, NAME1], ...) -# ----------------------------------- +# b4_c_ansi_function_def(NAME, RETURN-VALUE, [DECL1, NAME1], ...) +# --------------------------------------------------------------- +# Declare the function NAME in ANSI. +m4_define([b4_c_ansi_function_def], +[$2 +$1 (b4_c_ansi_formals(m4_shiftn(2, $@)))[]dnl +]) + + +# b4_c_ansi_formals([DECL1, NAME1], ...) +# -------------------------------------- # Output the arguments ANSI-C definition. -m4_define([b4_c_ansi_args], -[m4_map_sep([b4_c_ansi_arg], [, ], [$@])]) +m4_define([b4_c_ansi_formals], +[m4_case([$@], + [], [void], + [[]], [void], + [m4_map_sep([b4_c_ansi_formal], [, ], [$@])])]) -m4_define([b4_c_ansi_arg], -[$1 $2]) +m4_define([b4_c_ansi_formal], +[$1]) -# b4_c_knr_args([TYPE1, NAME1], ...) -# ---------------------------------- +# b4_c_knr_formal_names([DECL1, NAME1], ...) +# ------------------------------------------ # Output the argument names. -m4_define([b4_c_knr_arg_names], -[m4_map_sep([b4_c_knr_arg_name], [, ], [$@])]) +m4_define([b4_c_knr_formal_names], +[m4_map_sep([b4_c_knr_formal_name], [, ], [$@])]) -m4_define([b4_c_knr_arg_name], +m4_define([b4_c_knr_formal_name], [$2]) -# b4_c_knr_args([TYPE1, NAME1], ...) -# ---------------------------------- +# b4_c_knr_formal_decls([DECL1, NAME1], ...) +# ------------------------------------------ # Output the K&R argument declarations. -m4_define([b4_c_knr_arg_decls], -[m4_map_sep([b4_c_knr_arg_decl], +m4_define([b4_c_knr_formal_decls], +[m4_map_sep([b4_c_knr_formal_decl], [ ], [$@])]) -m4_define([b4_c_knr_arg_decl], -[ $1 $2;]) +m4_define([b4_c_knr_formal_decl], +[ $1;]) -## ------------------ ## -## Decoding options. ## -## ------------------ ## +## ------------------------------------------------------------ ## +## Declaring (prototyping) C functions in both K&R and ANSI-C. ## +## ------------------------------------------------------------ ## -# b4_location_if(IF-TRUE, IF-FALSE) -# --------------------------------- -# Expand IF-TRUE, if locations are used, IF-FALSE otherwise. -m4_define([b4_location_if], -[m4_if(b4_locations_flag, [1], - [$1], - [$2])]) +# b4_c_function_decl(NAME, RETURN-VALUE, [DECL1, NAME1], ...) +# ----------------------------------------------------------- +# Declare the function NAME. +m4_define([b4_c_function_decl], +[#if defined (__STDC__) || defined (__cplusplus) +b4_c_ansi_function_decl($@) +#else +$2 $1 (); +#endif[]dnl +]) -# b4_pure_if(IF-TRUE, IF-FALSE) -# ----------------------------- -# Expand IF-TRUE, if %pure-parser, IF-FALSE otherwise. -m4_define([b4_pure_if], -[m4_if(b4_pure, [1], - [$1], - [$2])]) +# b4_c_ansi_function_decl(NAME, RETURN-VALUE, [DECL1, NAME1], ...) +# ---------------------------------------------------------------- +# Declare the function NAME. +m4_define([b4_c_ansi_function_decl], +[$2 $1 (b4_c_ansi_formals(m4_shiftn(2, $@)));[]dnl +]) + + + + +## --------------------- ## +## Calling C functions. ## +## --------------------- ## + + +# b4_c_function_call(NAME, RETURN-VALUE, [DECL1, NAME1], ...) +# ----------------------------------------------------------- +# Call the function NAME with arguments NAME1, NAME2 etc. +m4_define([b4_c_function_call], +[$1 (b4_c_args(m4_shiftn(2, $@)))[]dnl +]) + + +# b4_c_args([DECL1, NAME1], ...) +# ------------------------------ +# Output the arguments NAME1, NAME2... +m4_define([b4_c_args], +[m4_map_sep([b4_c_arg], [, ], [$@])]) + +m4_define([b4_c_arg], +[$2]) + + +## ----------- ## +## Synclines. ## +## ----------- ## + +# b4_syncline(LINE, FILE) +# ----------------------- +m4_define([b4_syncline], +[m4_if(b4_synclines_flag, 1, + [[#]line $1 $2])]) + + + +## -------------- ## +## User actions. ## +## -------------- ## + +# 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. | +`-----------------------------------------------*/ + +/*ARGSUSED*/ +]$1([yydestruct], + [static void], + [[const char *yymsg], [yymsg]], + [[int yytype], [yytype]], + [[YYSTYPE *yyvaluep], [yyvaluep]][]dnl +b4_location_if( [, [[YYLTYPE *yylocationp], [yylocationp]]])[]dnl +m4_ifset([b4_parse_param], [, b4_parse_param]))[ +{ + YYUSE (yyvaluep); +]b4_location_if([ YYUSE (yylocationp); +])dnl +b4_parse_param_use[]dnl +[ + 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_yy_symbol_print_generate(FUNCTION-DECLARATOR) +# ------------------------------------------------ +# Generate the "yy_symbol_print" 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_yy_symbol_print_generate], +[[ +/*--------------------------------. +| Print this symbol on YYOUTPUT. | +`--------------------------------*/ + +/*ARGSUSED*/ +]$1([yy_symbol_value_print], + [static void], + [[FILE *yyoutput], [yyoutput]], + [[int yytype], [yytype]], + [[const YYSTYPE * const yyvaluep], [yyvaluep]][]dnl +b4_location_if([, [[const YYLTYPE * const yylocationp], [yylocationp]]])[]dnl +m4_ifset([b4_parse_param], [, b4_parse_param]))[ +{ + YYUSE (yyvaluep); +]b4_location_if([ YYUSE (yylocationp); +])dnl +b4_parse_param_use[]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; + } +} + + +/*--------------------------------. +| Print this symbol on YYOUTPUT. | +`--------------------------------*/ + +]$1([yy_symbol_print], + [static void], + [[FILE *yyoutput], [yyoutput]], + [[int yytype], [yytype]], + [[const YYSTYPE * const yyvaluep], [yyvaluep]][]dnl +b4_location_if([, [[const YYLTYPE * const yylocationp], [yylocationp]]])[]dnl +m4_ifset([b4_parse_param], [, b4_parse_param]))[ +{ + 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 +[ yy_symbol_value_print (yyoutput, yytype, yyvaluep]dnl +b4_location_if([, yylocationp])[]b4_user_args[); + YYFPRINTF (yyoutput, ")"); +}]dnl +])