# C M4 Macros for Bison.
-# Copyright (C) 2002, 2004-2012 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2004-2013 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
## Identification. ##
## ---------------- ##
-# b4_comment_(TEXT, OPEN, CONTINUE, END)
-# --------------------------------------
-# Put TEXT in comment. Avoid trailing spaces: don't indent empty lines.
-# Avoid adding indentation to the first line, as the indentation comes
-# from OPEN. That's why we don't patsubst([$1], [^\(.\)], [ \1]).
-#
-# Prefix all the output lines with PREFIX.
-m4_define([b4_comment_], [$2[]m4_bpatsubst([$1], [
-\(.\)], [
-$3\1])$4])
-
-
-# b4_comment(TEXT, [PREFIX])
-# --------------------------
-# Put TEXT in comment. Avoid trailing spaces: don't indent empty lines.
-# Avoid adding indentation to the first line, as the indentation comes
-# from "/*". That's why we don't patsubst([$1], [^\(.\)], [ \1]).
-#
-# Prefix all the output lines with PREFIX.
-m4_define([b4_comment],
-[b4_comment_([$1], [$2/* ], [$2 ], [$2 */])])
-
-
# b4_identification
# -----------------
# Depends on individual skeletons to define b4_pure_flag, b4_push_flag, or
## 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],
# b4_parse_param_use([VAL], [LOC])
# --------------------------------
-# `YYUSE' VAL, LOC if locations are enabled, and all the parse-params.
+# 'YYUSE' VAL, LOC if locations are enabled, and all the parse-params.
m4_define([b4_parse_param_use],
-[m4_ifvaln([$1], [ YYUSE([$1]);])dnl
+[m4_ifvaln([$1], [ YYUSE ([$1]);])dnl
b4_locations_if([m4_ifvaln([$2], [ YYUSE ([$2]);])])dnl
b4_parse_param_for([Decl], [Formal], [ YYUSE (Formal);
])dnl
# b4_int_type_for(NAME)
# ---------------------
# Return the smallest int type able to handle numbers ranging from
-# `NAME_min' to `NAME_max' (included).
+# 'NAME_min' to 'NAME_max' (included).
m4_define([b4_int_type_for],
[b4_int_type($1_min, $1_max)])
# b4_integral_parser_table_define(TABLE-NAME, CONTENT, COMMENT)
# -------------------------------------------------------------
-# Define "yy<TABLE-NAME>" which contents is CONTENT.
+# Define "yy<TABLE-NAME>" 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[[]] =
# --------------
# Output the definition of the tokens (if there are) as enums.
m4_define([b4_token_enums],
-[b4_any_token_visible_if([[/* Tokens. */
+[b4_any_token_visible_if([[/* Token type. */
#ifndef ]b4_api_PREFIX[TOKENTYPE
# define ]b4_api_PREFIX[TOKENTYPE
- /* Put the tokens into the symbol table, so that GDB and other debuggers
- know about them. */
enum ]b4_api_prefix[tokentype
{
]m4_join([,
b4_locations_if([, [[YYLTYPE const * 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]);
+ YYFPRINTF (yyoutput, "%s %s (",
+ yytype < YYNTOKENS ? "token" : "nterm", yytname[yytype]);
]b4_locations_if([ YY_LOCATION_PRINT (yyoutput, *yylocationp);
YYFPRINTF (yyoutput, ": ");
## Declarations. ##
## -------------- ##
-# 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],
-[[#if ! defined ]b4_api_PREFIX[STYPE && ! defined ]b4_api_PREFIX[STYPE_IS_DECLARED
-]m4_ifdef([b4_stype],
-[[typedef union ]b4_union_name[
+# 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_union_members],
+[[typedef union ]b4_union_name[ ]b4_api_PREFIX[STYPE;
+union ]b4_union_name[
{
-]b4_user_stype[
-} ]b4_api_PREFIX[STYPE;
+]b4_user_union_members[
+};
# 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_locations_if([[
+#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
+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;
-} ]b4_api_PREFIX[LTYPE;
+};
# define ]b4_api_PREFIX[LTYPE_IS_DECLARED 1
# define ]b4_api_PREFIX[LTYPE_IS_TRIVIAL 1
-#endif]])
+#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],
-[[/* Enabling traces. */
+[[/* Debug traces. */
]m4_if(b4_api_prefix, [yy],
[[#ifndef YYDEBUG
# define YYDEBUG ]b4_parse_trace_if([1], [0])[
#ifndef YY_LOCATION_PRINT
# if defined ]b4_api_PREFIX[LTYPE_IS_TRIVIAL && ]b4_api_PREFIX[LTYPE_IS_TRIVIAL
-# define YY_LOCATION_PRINT(File, Loc) \
- do { \
- fprintf (File, "%d.%d", (Loc).first_line, (Loc).first_column); \
- if ((Loc).first_line < (Loc).last_line) \
- fprintf (File, "-%d.%d", (Loc).last_line, (Loc).last_column - 1); \
- else if ((Loc).first_column < (Loc).last_column - 1) \
- fprintf (File, "-%d", (Loc).last_column - 1); \
- } while (0)
+
+/* 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 += YYFPRINTF (yyo, "%d", yylocp->first_line);
+ if (0 <= yylocp->first_column)
+ res += YYFPRINTF (yyo, ".%d", yylocp->first_column);
+ }
+ if (0 <= yylocp->last_line)
+ {
+ if (yylocp->first_line < yylocp->last_line)
+ {
+ res += YYFPRINTF (yyo, "-%d", yylocp->last_line);
+ if (0 <= end_col)
+ res += YYFPRINTF (yyo, ".%d", end_col);
+ }
+ else if (0 <= end_col && yylocp->first_column < end_col)
+ res += YYFPRINTF (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
projects / bison.git / blobdiff