X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/02650b7f0e3ef470a949768bdb907183da4b3beb..99d795e8f28470838cc45bd38ce3da9503fe20fb:/data/c.m4?ds=inline
diff --git a/data/c.m4 b/data/c.m4
index f9066764..accf0477 100644
--- a/data/c.m4
+++ b/data/c.m4
@@ -1,99 +1,138 @@
-m4_divert(-1) -*- Autoconf -*-
+ -*- Autoconf -*-
# C M4 Macros for Bison.
-# Copyright (C) 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
-# This program is free software; you can redistribute it and/or modify
+# Copyright (C) 2002, 2004-2012 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
-# the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
-
+#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
-
+#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# along with this program. If not, see .
+m4_include(b4_pkgdatadir/[c-like.m4])
-## ---------------- ##
-## Identification. ##
-## ---------------- ##
+# b4_tocpp(STRING)
+# ----------------
+# Convert STRING into a valid C macro name.
+m4_define([b4_tocpp],
+[m4_toupper(m4_bpatsubst(m4_quote($1), [[^a-zA-Z0-9]+], [_]))])
-# b4_copyright(TITLE, YEARS)
-# --------------------------
-m4_define([b4_copyright],
-[/* A Bison parser, made by GNU Bison b4_version. */
-/* $1,
- Copyright (C) $2 Free Software Foundation, Inc.
+# b4_cpp_guard(FILE)
+# ------------------
+# A valid C macro name to use as a CPP header guard for FILE.
+m4_define([b4_cpp_guard],
+[[YY_]b4_tocpp(m4_defn([b4_prefix])/[$1])[_INCLUDED]])
+
- 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
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+# b4_cpp_guard_open(FILE)
+# b4_cpp_guard_close(FILE)
+# ------------------------
+# If FILE does not expand to nothing, open/close CPP inclusion guards for FILE.
+m4_define([b4_cpp_guard_open],
+[m4_ifval(m4_quote($1),
+[#ifndef b4_cpp_guard([$1])
+# define b4_cpp_guard([$1])])])
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
+m4_define([b4_cpp_guard_close],
+[m4_ifval(m4_quote($1),
+[#endif b4_comment([!b4_cpp_guard([$1])])])])
- 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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */])
+## ---------------- ##
+## Identification. ##
+## ---------------- ##
# b4_identification
# -----------------
+# Depends on individual skeletons to define b4_pure_flag, b4_push_flag, or
+# b4_pull_flag if they use the values of the %define variables api.pure or
+# api.push-pull.
m4_define([b4_identification],
-[/* Identify Bison output. */
-[#]define YYBISON 1
+[[/* Identify Bison output. */
+#define YYBISON 1
/* Bison version. */
-[#]define YYBISON_VERSION "b4_version"
+#define YYBISON_VERSION "]b4_version["
/* Skeleton name. */
-[#]define YYSKELETON_NAME b4_skeleton
+#define YYSKELETON_NAME ]b4_skeleton[]m4_ifdef([b4_pure_flag], [[
/* Pure parsers. */
-[#]define YYPURE b4_pure
+#define YYPURE ]b4_pure_flag])[]m4_ifdef([b4_push_flag], [[
-/* Using locations. */
-[#]define YYLSP_NEEDED b4_locations_flag
-])
+/* Push parsers. */
+#define YYPUSH ]b4_push_flag])[]m4_ifdef([b4_pull_flag], [[
+/* Pull parsers. */
+#define YYPULL ]b4_pull_flag])[
+]])
## ---------------- ##
## Default values. ##
## ---------------- ##
-m4_define_default([b4_epilogue], [])
+# b4_api_prefix, b4_api_PREFIX
+# ----------------------------
+# Corresponds to %define api.prefix
+b4_percent_define_default([[api.prefix]], [[yy]])
+m4_define([b4_api_prefix],
+[b4_percent_define_get([[api.prefix]])])
+m4_define([b4_api_PREFIX],
+[m4_toupper(b4_api_prefix)])
+
+# b4_prefix
+# ---------
+# If the %name-prefix is not given, it is api.prefix.
+m4_define_default([b4_prefix], [b4_api_prefix])
+
+# If the %union is not named, its name is YYSTYPE.
+m4_define_default([b4_union_name], [b4_api_PREFIX[]STYPE])
## ------------------------ ##
## Pure/impure interfaces. ##
## ------------------------ ##
+# b4_lex_formals
+# --------------
+# All the yylex formal arguments.
+# b4_lex_param arrives quoted twice, but we want to keep only one level.
+m4_define([b4_lex_formals],
+[b4_pure_if([[[[YYSTYPE *yylvalp]], [[&yylval]]][]dnl
+b4_locations_if([, [[YYLTYPE *yyllocp], [&yylloc]]])])dnl
+m4_ifdef([b4_lex_param], [, ]b4_lex_param)])
+
+
+# b4_lex
+# ------
+# Call yylex.
+m4_define([b4_lex],
+[b4_function_call([yylex], [int], b4_lex_formals)])
+
# b4_user_args
# ------------
m4_define([b4_user_args],
-[m4_ifset([b4_parse_param], [, b4_c_args(b4_parse_param)])])
+[m4_ifset([b4_parse_param], [, b4_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)
# b4_parse_param_for(DECL, FORMAL, BODY)
@@ -102,33 +141,28 @@ b4_parse_param))
# 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([$1], m4_unquote(m4_car($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.
+# b4_parse_param_use([VAL], [LOC])
+# --------------------------------
+# `YYUSE' VAL, LOC if locations are enabled, and all the parse-params.
m4_define([b4_parse_param_use],
-[b4_parse_param_for([Decl], [Formal], [ YYUSE (Formal);
+[m4_ifvaln([$1], [ YYUSE([$1]);])dnl
+b4_locations_if([m4_ifvaln([$2], [ YYUSE ([$2]);])])dnl
+b4_parse_param_for([Decl], [Formal], [ YYUSE (Formal);
])dnl
])
+
## ------------ ##
## Data Types. ##
## ------------ ##
-
-# b4_ints_in(INT1, INT2, LOW, HIGH)
-# ---------------------------------
-# Return 1 iff both INT1 and INT2 are in [LOW, HIGH], 0 otherwise.
-m4_define([b4_ints_in],
-[m4_eval([$3 <= $1 && $1 <= $4 && $3 <= $2 && $2 <= $4])])
-
-
# b4_int_type(MIN, MAX)
# ---------------------
# Return the smallest int type able to handle numbers ranging from
@@ -142,7 +176,7 @@ m4_define([b4_int_type],
m4_eval([0 <= $1]), [1], [unsigned int],
- [int])])
+ [int])])
# b4_int_type_for(NAME)
@@ -153,197 +187,160 @@ m4_define([b4_int_type_for],
[b4_int_type($1_min, $1_max)])
-## ------------------ ##
-## Decoding options. ##
-## ------------------ ##
+# b4_table_value_equals(TABLE, VALUE, LITERAL)
+# --------------------------------------------
+# Without inducing a comparison warning from the compiler, check if the
+# literal value LITERAL equals VALUE from table TABLE, which must have
+# TABLE_min and TABLE_max defined.
+m4_define([b4_table_value_equals],
+[m4_if(m4_eval($3 < m4_indir([b4_]$1[_min])
+ || m4_indir([b4_]$1[_max]) < $3), [1],
+ [[0]],
+ [(!!(($2) == ($3)))])])
-# 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])])
+## ---------##
+## Values. ##
+## ---------##
-# 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_null_define
+# --------------
+# Portability issues: define a YY_NULL appropriate for the current
+# language (C, C++98, or C++11).
+m4_define([b4_null_define],
+[# ifndef YY_NULL
+# if defined __cplusplus && 201103L <= __cplusplus
+# define YY_NULL nullptr
+# else
+# define YY_NULL 0
+# endif
+# 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_null
+# -------
+# Return a null pointer constant.
+m4_define([b4_null], [YY_NULL])
+# b4_integral_parser_table_define(TABLE-NAME, CONTENT, COMMENT)
+# -------------------------------------------------------------
+# Define "yy" whose contents is CONTENT.
+m4_define([b4_integral_parser_table_define],
+[m4_ifvaln([$3], [b4_comment([$3], [ ])])dnl
+static const b4_int_type_for([$2]) yy$1[[]] =
+{
+ $2
+};dnl
+])
## ------------------------- ##
## Assigning token numbers. ##
## ------------------------- ##
-# b4_token_define(TOKEN-NAME, TOKEN-NUMBER)
-# -----------------------------------------
+# b4_token_define(TOKEN-NUM)
+# --------------------------
# Output the definition of this token as #define.
m4_define([b4_token_define],
-[#define $1 $2
-])
-
+[b4_token_format([#define %s %s], [$1])])
-# b4_token_defines(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
-# -------------------------------------------------------
-# Output the definition of the tokens (if there are) as #defines.
+# b4_token_defines
+# ----------------
+# Output the definition of the tokens.
m4_define([b4_token_defines],
-[m4_if([$@], [[]], [],
-[/* Tokens. */
-m4_map([b4_token_define], [$@])])
-])
+[b4_any_token_visible_if([/* Tokens. */
+m4_join([
+], b4_symbol_map([b4_token_define]))
+])])
-# b4_token_enum(TOKEN-NAME, TOKEN-NUMBER)
-# ---------------------------------------
+# b4_token_enum(TOKEN-NUM)
+# ------------------------
# Output the definition of this token as an enum.
m4_define([b4_token_enum],
-[$1 = $2])
+[b4_token_format([%s = %s], [$1])])
-# b4_token_enums(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
-# -----------------------------------------------------
+# b4_token_enums
+# --------------
# Output the definition of the tokens (if there are) as enums.
m4_define([b4_token_enums],
-[m4_if([$@], [[]], [],
-[/* Tokens. */
-#ifndef YYTOKENTYPE
-# define YYTOKENTYPE
- /* Put the tokens into the symbol table, so that GDB and other debuggers
- know about them. */
- enum yytokentype {
-m4_map_sep([ b4_token_enum], [,
-],
- [$@])
- };
+[b4_any_token_visible_if([[/* Token type. */
+#ifndef ]b4_api_PREFIX[TOKENTYPE
+# define ]b4_api_PREFIX[TOKENTYPE
+ enum ]b4_api_prefix[tokentype
+ {
+ ]m4_join([,
+ ],
+ b4_symbol_map([b4_token_enum]))[
+ };
#endif
-])])
+]])])
-# b4_token_enums_defines(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
-# -------------------------------------------------------------
-# Output the definition of the tokens (if there are) as enums and #defines.
+# b4_token_enums_defines
+# ----------------------
+# Output the definition of the tokens (if there are any) as enums and,
+# if POSIX Yacc is enabled, as #defines.
m4_define([b4_token_enums_defines],
-[b4_token_enums($@)b4_token_defines($@)
-])
+[b4_token_enums[]b4_yacc_if([b4_token_defines])])
+## ----------------- ##
+## Semantic Values. ##
+## ----------------- ##
-## --------------------------------------------- ##
-## Defining C functions in both K&R and ANSI-C. ##
-## --------------------------------------------- ##
+# b4_symbol_value(VAL, [TYPE])
+# ----------------------------
+# Given a semantic value VAL ($$, $1 etc.), extract its value of type
+# TYPE if TYPE is given, otherwise just return VAL. The result can be
+# used safetly, it is put in parens to avoid nasty precedence issues.
+# TYPE is *not* put in braces, provide some if needed.
+m4_define([b4_symbol_value],
+[($1[]m4_ifval([$2], [.$2]))])
-# b4_modern_c
-# -----------
-# A predicate useful in #if to determine whether C is ancient or modern.
-#
-# If __STDC__ is defined, the compiler is modern. IBM xlc 7.0 when run
-# as 'cc' doesn't define __STDC__ (or __STDC_VERSION__) for pedantic
-# reasons, but it defines __C99__FUNC__ so check that as well.
-# Microsoft C normally doesn't define these macros, but it defines _MSC_VER.
-# Consider a C++ compiler to be modern if it defines __cplusplus.
-#
-m4_define([b4_c_modern],
- [[(defined __STDC__ || defined __C99__FUNC__ \
- || defined __cplusplus || defined _MSC_VER)]])
-# b4_c_function_def(NAME, RETURN-VALUE, [DECL1, NAME1], ...)
-# ----------------------------------------------------------
-# Declare the function NAME.
-m4_define([b4_c_function_def],
-[#if b4_c_modern
-b4_c_ansi_function_def($@)
-#else
-$2
-$1 (b4_c_knr_formal_names(m4_shiftn(2, $@)))
-b4_c_knr_formal_decls(m4_shiftn(2, $@))
-#endif[]dnl
-])
+## ---------------------- ##
+## Defining C functions. ##
+## ---------------------- ##
-# b4_c_ansi_function_def(NAME, RETURN-VALUE, [DECL1, NAME1], ...)
-# ---------------------------------------------------------------
-# Declare the function NAME in ANSI.
-m4_define([b4_c_ansi_function_def],
+
+# b4_function_define(NAME, RETURN-VALUE, [DECL1, NAME1], ...)
+# -----------------------------------------------------------
+# Declare the function NAME in C.
+m4_define([b4_function_define],
[$2
-$1 (b4_c_ansi_formals(m4_shiftn(2, $@)))[]dnl
+$1 (b4_formals(m4_shift2($@)))[]dnl
])
-# b4_c_ansi_formals([DECL1, NAME1], ...)
-# --------------------------------------
-# Output the arguments ANSI-C definition.
-m4_define([b4_c_ansi_formals],
-[m4_case([$@],
- [], [void],
- [[]], [void],
- [m4_map_sep([b4_c_ansi_formal], [, ], [$@])])])
+# b4_formals([DECL1, NAME1], ...)
+# -------------------------------
+# The formal arguments of a C function definition.
+m4_define([b4_formals],
+[m4_if([$#], [0], [void],
+ [$#$1], [1], [void],
+ [m4_map_sep([b4_formal], [, ], [$@])])])
-m4_define([b4_c_ansi_formal],
+m4_define([b4_formal],
[$1])
-# b4_c_knr_formal_names([DECL1, NAME1], ...)
-# ------------------------------------------
-# Output the argument names.
-m4_define([b4_c_knr_formal_names],
-[m4_map_sep([b4_c_knr_formal_name], [, ], [$@])])
-
-m4_define([b4_c_knr_formal_name],
-[$2])
-
-
-# b4_c_knr_formal_decls([DECL1, NAME1], ...)
-# ------------------------------------------
-# Output the K&R argument declarations.
-m4_define([b4_c_knr_formal_decls],
-[m4_map_sep([b4_c_knr_formal_decl],
- [
-],
- [$@])])
-
-m4_define([b4_c_knr_formal_decl],
-[ $1;])
-
-
-## ------------------------------------------------------------ ##
-## Declaring (prototyping) C functions in both K&R and ANSI-C. ##
-## ------------------------------------------------------------ ##
+## ----------------------- ##
+## Declaring C functions. ##
+## ----------------------- ##
-# b4_c_function_decl(NAME, RETURN-VALUE, [DECL1, NAME1], ...)
-# -----------------------------------------------------------
+# b4_function_declare(NAME, RETURN-VALUE, [DECL1, NAME1], ...)
+# ------------------------------------------------------------
# Declare the function NAME.
-m4_define([b4_c_function_decl],
-[#if defined __STDC__ || defined __cplusplus
-b4_c_ansi_function_decl($@)
-#else
-$2 $1 ();
-#endif[]dnl
-])
-
-
-# b4_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
+m4_define([b4_function_declare],
+[$2 $1 (b4_formals(m4_shift2($@)));[]dnl
])
@@ -354,21 +351,21 @@ m4_define([b4_c_ansi_function_decl],
## --------------------- ##
-# b4_c_function_call(NAME, RETURN-VALUE, [DECL1, NAME1], ...)
+# b4_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
+m4_define([b4_function_call],
+[$1 (b4_args(m4_shift2($@)))[]dnl
])
-# b4_c_args([DECL1, NAME1], ...)
-# ------------------------------
+# b4_args([DECL1, NAME1], ...)
+# ----------------------------
# Output the arguments NAME1, NAME2...
-m4_define([b4_c_args],
-[m4_map_sep([b4_c_arg], [, ], [$@])])
+m4_define([b4_args],
+[m4_map_sep([b4_arg], [, ], [$@])])
-m4_define([b4_c_arg],
+m4_define([b4_arg],
[$2])
@@ -376,110 +373,97 @@ m4_define([b4_c_arg],
## Synclines. ##
## ----------- ##
-# b4_syncline(LINE, FILE)
-# -----------------------
-m4_define([b4_syncline],
-[m4_if(b4_synclines_flag, 1,
- [[#]line $1 $2])])
-
+# b4_sync_start(LINE, FILE)
+# -------------------------
+m4_define([b4_sync_start], [[#]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_case(LABEL, STATEMENTS)
+# --------------------------
+m4_define([b4_case],
+[ case $1:
+$2
b4_syncline([@oline@], [@ofile@])
- break;
-m4_popdef([b4_at_dollar])dnl
-m4_popdef([b4_dollar_dollar])dnl
-])
+ break;])
-# 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],
+# b4_predicate_case(LABEL, CONDITIONS)
+# ------------------------------------
+m4_define([b4_predicate_case],
+[ case $1:
+ if (! ($2)) YYERROR;
+b4_syncline([@oline@], [@ofile@])
+ break;])
+
+
+# b4_yydestruct_define
+# --------------------
+# Define the "yydestruct" function.
+m4_define_default([b4_yydestruct_define],
[[/*-----------------------------------------------.
| Release the memory associated to this symbol. |
`-----------------------------------------------*/
-/*ARGSUSED*/
-]$1([yydestruct],
+]b4_function_define([yydestruct],
[static void],
[[const char *yymsg], [yymsg]],
[[int yytype], [yytype]],
[[YYSTYPE *yyvaluep], [yyvaluep]][]dnl
-b4_location_if( [, [[YYLTYPE *yylocationp], [yylocationp]]])[]dnl
+b4_locations_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)
+]b4_parse_param_use([yyvaluep], [yylocationp])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;
+]b4_symbol_foreach([b4_symbol_destructor])dnl
+[ 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],
+# b4_yy_symbol_print_define
+# -------------------------
+# Define the "yy_symbol_print" function.
+m4_define_default([b4_yy_symbol_print_define],
[[
/*--------------------------------.
| Print this symbol on YYOUTPUT. |
`--------------------------------*/
-/*ARGSUSED*/
-]$1([yy_symbol_value_print],
+]b4_function_define([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
+ [[FILE *yyoutput], [yyoutput]],
+ [[int yytype], [yytype]],
+ [[YYSTYPE const * const yyvaluep], [yyvaluep]][]dnl
+b4_locations_if([, [[YYLTYPE const * const yylocationp], [yylocationp]]])[]dnl
m4_ifset([b4_parse_param], [, b4_parse_param]))[
{
- if (!yyvaluep)
- return;
-]b4_location_if([ YYUSE (yylocationp);
-])dnl
-b4_parse_param_use[]dnl
-[# ifdef YYPRINT
+ FILE *yyo = yyoutput;
+]b4_parse_param_use([yyo], [yylocationp])dnl
+[ if (!yyvaluep)
+ return;]
+dnl glr.c does not feature yytoknum.
+m4_if(b4_skeleton, ["yacc.c"],
+[[# ifdef YYPRINT
if (yytype < YYNTOKENS)
YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
-# else
- YYUSE (yyoutput);
# endif
- switch (yytype)
+]])dnl
+[ switch (yytype)
{
-]m4_map([b4_symbol_actions], m4_defn([b4_symbol_printers]))dnl
+]b4_symbol_foreach([b4_symbol_printer])dnl
[ default:
- break;
+ break;
}
}
@@ -488,12 +472,12 @@ b4_parse_param_use[]dnl
| Print this symbol on YYOUTPUT. |
`--------------------------------*/
-]$1([yy_symbol_print],
+]b4_function_define([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
+ [[FILE *yyoutput], [yyoutput]],
+ [[int yytype], [yytype]],
+ [[YYSTYPE const * const yyvaluep], [yyvaluep]][]dnl
+b4_locations_if([, [[YYLTYPE const * const yylocationp], [yylocationp]]])[]dnl
m4_ifset([b4_parse_param], [, b4_parse_param]))[
{
if (yytype < YYNTOKENS)
@@ -501,11 +485,195 @@ m4_ifset([b4_parse_param], [, b4_parse_param]))[
else
YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
-]b4_location_if([ YY_LOCATION_PRINT (yyoutput, *yylocationp);
+]b4_locations_if([ YY_LOCATION_PRINT (yyoutput, *yylocationp);
YYFPRINTF (yyoutput, ": ");
])dnl
[ yy_symbol_value_print (yyoutput, yytype, yyvaluep]dnl
-b4_location_if([, yylocationp])[]b4_user_args[);
+b4_locations_if([, yylocationp])[]b4_user_args[);
YYFPRINTF (yyoutput, ")");
}]dnl
])
+
+## -------------- ##
+## Declarations. ##
+## -------------- ##
+
+# b4_value_type_define
+# --------------------
+m4_define([b4_value_type_define],
+[[/* Value type. */
+#if ! defined ]b4_api_PREFIX[STYPE && ! defined ]b4_api_PREFIX[STYPE_IS_DECLARED
+]m4_ifdef([b4_stype],
+[[typedef union ]b4_union_name[ ]b4_api_PREFIX[STYPE;
+union ]b4_union_name[
+{
+]b4_user_stype[
+};
+# define ]b4_api_PREFIX[STYPE_IS_TRIVIAL 1]],
+[m4_if(b4_tag_seen_flag, 0,
+[[typedef int ]b4_api_PREFIX[STYPE;
+# define ]b4_api_PREFIX[STYPE_IS_TRIVIAL 1]])])[
+# define ]b4_api_PREFIX[STYPE_IS_DECLARED 1
+#endif
+]])
+
+
+# b4_location_type_define
+# -----------------------
+m4_define([b4_location_type_define],
+[[/* Location type. */
+#if ! defined ]b4_api_PREFIX[LTYPE && ! defined ]b4_api_PREFIX[LTYPE_IS_DECLARED
+typedef struct ]b4_api_PREFIX[LTYPE ]b4_api_PREFIX[LTYPE;
+struct ]b4_api_PREFIX[LTYPE
+{
+ int first_line;
+ int first_column;
+ int last_line;
+ int last_column;
+};
+# define ]b4_api_PREFIX[LTYPE_IS_DECLARED 1
+# define ]b4_api_PREFIX[LTYPE_IS_TRIVIAL 1
+#endif
+]])
+
+
+# b4_declare_yylstype
+# -------------------
+# Declarations that might either go into the header (if --defines) or
+# in the parser body. Declare YYSTYPE/YYLTYPE, and yylval/yylloc.
+m4_define([b4_declare_yylstype],
+[b4_value_type_define[]b4_locations_if([
+b4_location_type_define])
+
+b4_pure_if([], [[extern ]b4_api_PREFIX[STYPE ]b4_prefix[lval;
+]b4_locations_if([[extern ]b4_api_PREFIX[LTYPE ]b4_prefix[lloc;]])])[]dnl
+])
+
+
+# b4_YYDEBUG_define
+# ------------------
+m4_define([b4_YYDEBUG_define],
+[[/* Debug traces. */
+]m4_if(b4_api_prefix, [yy],
+[[#ifndef YYDEBUG
+# define YYDEBUG ]b4_parse_trace_if([1], [0])[
+#endif]],
+[[#ifndef ]b4_api_PREFIX[DEBUG
+# if defined YYDEBUG
+#if YYDEBUG
+# define ]b4_api_PREFIX[DEBUG 1
+# else
+# define ]b4_api_PREFIX[DEBUG 0
+# endif
+# else /* ! defined YYDEBUG */
+# define ]b4_api_PREFIX[DEBUG ]b4_parse_trace_if([1], [0])[
+# endif /* ! defined YYDEBUG */
+#endif /* ! defined ]b4_api_PREFIX[DEBUG */]])[]dnl
+])
+
+# b4_declare_yydebug
+# ------------------
+m4_define([b4_declare_yydebug],
+[b4_YYDEBUG_define[
+#if ]b4_api_PREFIX[DEBUG
+extern int ]b4_prefix[debug;
+#endif][]dnl
+])
+
+# b4_yylloc_default_define
+# ------------------------
+# Define YYLLOC_DEFAULT.
+m4_define([b4_yylloc_default_define],
+[[/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+ If N is 0, then set CURRENT to the empty location which ends
+ the previous symbol: RHS[0] (always defined). */
+
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N) \
+ do \
+ if (N) \
+ { \
+ (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
+ (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
+ (Current).last_line = YYRHSLOC (Rhs, N).last_line; \
+ (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
+ } \
+ else \
+ { \
+ (Current).first_line = (Current).last_line = \
+ YYRHSLOC (Rhs, 0).last_line; \
+ (Current).first_column = (Current).last_column = \
+ YYRHSLOC (Rhs, 0).last_column; \
+ } \
+ while (0)
+#endif
+]])
+
+# b4_yy_location_print_define
+# ---------------------------
+# Define YY_LOCATION_PRINT.
+m4_define([b4_yy_location_print_define],
+[b4_locations_if([[
+/* YY_LOCATION_PRINT -- Print the location on the stream.
+ This macro was not mandated originally: define only if we know
+ we won't break user code: when these are the locations we know. */
+
+#ifndef YY_LOCATION_PRINT
+# if defined ]b4_api_PREFIX[LTYPE_IS_TRIVIAL && ]b4_api_PREFIX[LTYPE_IS_TRIVIAL
+
+/* Print *YYLOCP on YYO. Private, do not rely on its existence. */
+
+__attribute__((__unused__))
+]b4_function_define([yy_location_print_],
+ [static unsigned],
+ [[FILE *yyo], [yyo]],
+ [[YYLTYPE const * const yylocp], [yylocp]])[
+{
+ unsigned res = 0;
+ int end_col = 0 != yylocp->last_column ? yylocp->last_column - 1 : 0;
+ if (0 <= yylocp->first_line)
+ {
+ res += fprintf (yyo, "%d", yylocp->first_line);
+ if (0 <= yylocp->first_column)
+ res += fprintf (yyo, ".%d", yylocp->first_column);
+ }
+ if (0 <= yylocp->last_line)
+ {
+ if (yylocp->first_line < yylocp->last_line)
+ {
+ res += fprintf (yyo, "-%d", yylocp->last_line);
+ if (0 <= end_col)
+ res += fprintf (yyo, ".%d", end_col);
+ }
+ else if (0 <= end_col && yylocp->first_column < end_col)
+ res += fprintf (yyo, "-%d", end_col);
+ }
+ return res;
+ }
+
+# define YY_LOCATION_PRINT(File, Loc) \
+ yy_location_print_ (File, &(Loc))
+
+# else
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+# endif
+#endif]],
+[[/* This macro is provided for backward compatibility. */
+#ifndef YY_LOCATION_PRINT
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+#endif]])
+])
+
+# b4_yyloc_default
+# ----------------
+# Expand to a possible default value for yylloc.
+m4_define([b4_yyloc_default],
+[[
+# if defined ]b4_api_PREFIX[LTYPE_IS_TRIVIAL && ]b4_api_PREFIX[LTYPE_IS_TRIVIAL
+ = { ]m4_join([, ],
+ m4_defn([b4_location_initial_line]),
+ m4_defn([b4_location_initial_column]),
+ m4_defn([b4_location_initial_line]),
+ m4_defn([b4_location_initial_column]))[ }
+# endif
+]])