# --------------------------------------------------
# This macro works around the impossibility to define macros
# inside macros, because issuing `[$1]' is not possible in M4 :(.
-# This sucks hard, GNU M4 should really provide M5 like $$1.
+# This sucks hard, GNU M4 should really provide M5-like $$1.
m4_define([_AT_BISON_OPTION_PUSHDEFS],
[m4_if([$1$2], $[1]$[2], [],
[m4_fatal([$0: Invalid arguments: $@])])dnl
m4_pushdef([AT_SKEL_JAVA_IF],
[m4_bmatch([$3], [%language "[Jj][Aa][Vv][Aa]"\|%skeleton "[a-z0-9]+\.java"], [$1], [$2])])
m4_pushdef([AT_GLR_IF],
-[m4_bmatch([$3], [%glr-parser\|%skeleton "glr\.], [$1], [$2])])
+[m4_bmatch([$3], [%glr-parser\|%skeleton "glr\..*"], [$1], [$2])])
m4_pushdef([AT_LALR1_CC_IF],
[AT_SKEL_CC_IF([AT_GLR_IF([$2], [$1])], [$2])])
m4_pushdef([AT_GLR_CC_IF],
[m4_bmatch([$3], [%glr-parser\|%parse-param], [$1], [$2])])
m4_pushdef([AT_NAME_PREFIX],
[m4_bmatch([$3], [%name-prefix ".*"],
- [m4_bregexp([$3], [name-prefix "\([^"]*\)"], [\1])],
+ [m4_bregexp([$3], [name-prefix "\([^""]*\)"], [\1])],
[yy])])
+m4_pushdef([AT_API_PREFIX],
+[m4_bmatch([$3], [%define api\.prefix ".*"],
+ [m4_bregexp([$3], [%define api\.prefix "\([^""]*\)"], [\1])],
+ [yy])])
+m4_pushdef([AT_TOKEN_PREFIX],
+[m4_bmatch([$3], [%define api.tokens.prefix ".*"],
+ [m4_bregexp([$3], [%define api.tokens.prefix "\(.*\)"], [\1])])])
# yyerror receives the location if %location & %pure & (%glr or %parse-param).
m4_pushdef([AT_YYERROR_ARG_LOC_IF],
[AT_GLR_OR_PARAM_IF([AT_PURE_AND_LOC_IF([$1], [$2])],
- [$2])])
+ [$2])])
# yyerror always sees the locations (when activated), except if
# (yacc & pure & !param). FIXME: This is wrong. See the manual.
m4_pushdef([AT_YYERROR_SEES_LOC_IF],
[AT_LOCATION_IF([AT_YACC_IF([AT_PURE_IF([AT_PARAM_IF([$1], [$2])],
- [$1])],
- [$1])],
- [$2])])
+ [$1])],
+ [$1])],
+ [$2])])
# The interface is pure: either because %define api.pure, or because we
# are using the C++ parsers.
m4_pushdef([AT_PURE_LEX_IF],
[AT_PURE_IF([$1],
- [AT_SKEL_CC_IF([$1], [$2])])])
+ [AT_SKEL_CC_IF([$1], [$2])])])
AT_PURE_LEX_IF(
[m4_pushdef([AT_LOC], [(*llocp)])
m4_pushdef([AT_VAL], [(*lvalp)])
m4_pushdef([AT_LEX_FORMALS],
- [YYSTYPE *lvalp[]AT_LOCATION_IF([, YYLTYPE *llocp])])
+ [YYSTYPE *lvalp[]AT_LOCATION_IF([, YYLTYPE *llocp])])
m4_pushdef([AT_LEX_ARGS],
- [lvalp[]AT_LOCATION_IF([, llocp])])
+ [lvalp[]AT_LOCATION_IF([, llocp])])
m4_pushdef([AT_USE_LEX_ARGS],
- [(void) lvalp;AT_LOCATION_IF([(void) llocp])])
+ [(void) lvalp;AT_LOCATION_IF([(void) llocp])])
m4_pushdef([AT_LEX_PRE_FORMALS],
- [AT_LEX_FORMALS, ])
+ [AT_LEX_FORMALS, ])
m4_pushdef([AT_LEX_PRE_ARGS],
- [AT_LEX_ARGS, ])
+ [AT_LEX_ARGS, ])
],
[m4_pushdef([AT_LOC], [[(]AT_NAME_PREFIX[lloc)]])
m4_pushdef([AT_VAL], [[(]AT_NAME_PREFIX[lval)]])
[AT_LOC_PUSHDEF([begin.line], [begin.column], [end.line], [end.column])])],
[AT_LOC_PUSHDEF([first_line], [first_column], [last_line], [last_column])])
+
+AT_GLR_IF([AT_KEYWORDS([glr])])
])# _AT_BISON_OPTION_PUSHDEFS
m4_popdef([AT_PURE_LEX_IF])
m4_popdef([AT_YYERROR_SEES_LOC_IF])
m4_popdef([AT_YYERROR_ARG_LOC_IF])
+m4_popdef([AT_API_PREFIX])
m4_popdef([AT_NAME_PREFIX])
m4_popdef([AT_GLR_OR_PARAM_IF])
m4_popdef([AT_PURE_AND_LOC_IF])
$2])
])
+# AT_YYLEX_DECLARE_EXTERN
+# AT_YYLEX_DECLARE
+# AT_YYLEX_DEFINE(INPUT-STRING, [ACTION])
+# ---------------------------------------
+m4_define([AT_YYLEX_DECLARE_EXTERN],
+[int AT_API_PREFIX[]lex (void);dnl
+])
+
+m4_define([AT_YYLEX_DECLARE],
+[static AT_YYLEX_DECLARE_EXTERN[]dnl
+])
+
+m4_define([AT_YYLEX_DEFINE],
+[[#include <stdlib.h> /* abort */
+static int
+]AT_API_PREFIX[lex (void)
+{
+ static char const input[] = "$1";
+ static size_t toknum = 0;
+ int res;
+ if (! (toknum < sizeof input))
+ abort ();
+ res = input[toknum++];
+ ]$2;[]AT_LOCATION_IF([[
+ ]AT_API_PREFIX[lloc.first_line = ]AT_API_PREFIX[lloc.last_line = 1;
+ ]AT_API_PREFIX[lloc.first_column = ]AT_API_PREFIX[lloc.last_column = toknum;]])[
+ return res;
+}]dnl
+])
+
+# AT_YYERROR_DECLARE_EXTERN
+# AT_YYERROR_DECLARE
+# AT_YYERROR_DEFINE
+# -------------------------
+# Beware that must be called inside a AT_BISON_OPTION_PUSHDEFS/POPDEFS
+# pair.
+m4_define([AT_YYERROR_DECLARE_EXTERN],
+[void AT_API_PREFIX[]error (const char *msg);dnl
+])
+
+m4_define([AT_YYERROR_DECLARE],
+[static AT_YYERROR_DECLARE_EXTERN[]dnl
+])
+
+m4_define([AT_YYERROR_DEFINE],
+[AT_SKEL_JAVA_IF([[public void yyerror (String msg)
+{
+ System.err.println (msg);
+}]], [AT_SKEL_CC_IF([[void
+yy::parser::error (]AT_LOCATION_IF([[const yy::location &, ]])[std::string const &msg)
+{
+ std::cerr << msg << std::endl;
+}]], [[#include <stdio.h>
+static void
+]AT_API_PREFIX[error (char const *msg)
+{
+ fprintf (stderr, "%s\n", msg);
+}]])])dnl
+])
+
+## --------------- ##
+## Running Bison. ##
+## --------------- ##
+
# AT_BISON_CHECK(BISON_ARGS, [OTHER_AT_CHECK_ARGS])
# -------------------------------------------------
# Check Bison by invoking `bison BISON_ARGS'. BISON_ARGS should not contain
# assume that we are linking too; this is a hack.
m4_define([AT_COMPILE],
[AT_CHECK([$CC $CFLAGS $CPPFLAGS m4_bmatch([$1], [[.]], [], [$LDFLAGS ])-o $1 m4_default([$2], [$1.c])[]m4_bmatch([$1], [[.]], [], [ $LIBS])],
- 0, [ignore], [ignore])])
+ 0, [ignore], [ignore])])
# AT_COMPILE_CXX(OUTPUT, [SOURCES = OUTPUT.cc])
# --------------------------------------------
[AT_KEYWORDS(c++)
AT_CHECK([$BISON_CXX_WORKS], 0, ignore, ignore)
AT_CHECK([$CXX $CXXFLAGS $CPPFLAGS m4_bmatch([$1], [[.]], [], [$LDFLAGS ])-o $1 m4_default([$2], [$1.cc])[]m4_bmatch([$1], [[.]], [], [ $LIBS])],
- 0, [ignore], [ignore])])
+ 0, [ignore], [ignore])])
# AT_JAVA_COMPILE(SOURCES)
# ------------------------
AT_CHECK([[$SHELL ../../../javacomp.sh ]$1],
[[0]], [ignore], [ignore])])
-# AT_FULL_COMPILE(OUTPUT, [OTHER])
-# --------------------------------
+# AT_FULL_COMPILE(OUTPUT, [OTHER1], [OTHER2])
+# -------------------------------------------
# Compile OUTPUT.y to OUTPUT.c, OUTPUT.cc, or OUTPUT.java, and then
# compile it to OUTPUT or OUTPUT.class. If OTHER is specified, compile
# OUTPUT-OTHER.c, OUTPUT-OTHER.cc, or OUTPUT-OTHER.java to OUTPUT or
# AT_SKEL_JAVA_IF.
m4_define([AT_FULL_COMPILE], [
AT_SKEL_JAVA_IF([
- AT_BISON_CHECK([[-o ]$1[.java ]$1[.y]])
- AT_JAVA_COMPILE([$1[.java]]m4_ifval($2,
- [[$1[.java ]$1[-]$2[.java]]]))
+ AT_BISON_CHECK([-o $1.java $1.y])
+ AT_JAVA_COMPILE([$1.java],
+ m4_join([ ],
+ [$1.java],
+ m4_ifval($2, [[$1-$2.java]]),
+ m4_ifval($3, [[$1-$3.java]])))
], [
AT_SKEL_CC_IF([
- AT_BISON_CHECK([[-o ]$1[.cc ]$1[.y]])
- AT_COMPILE_CXX([$1]m4_ifval($2, [, [$1[.cc ]$1[-]$2[.cc]]]))
+ AT_BISON_CHECK([-o $1.cc $1.y])
+ AT_COMPILE_CXX([$1],
+ m4_join([ ],
+ [$1.cc],
+ m4_ifval($2, [[$1-$2.cc]]),
+ m4_ifval($3, [[$1-$3.cc]])))
], [
- AT_BISON_CHECK([[-o ]$1[.c ]$1[.y]])
- AT_COMPILE([$1]m4_ifval($2, [, [$1[.c ]$1[-]$2[.c]]]))
+ AT_BISON_CHECK([-o $1.c $1.y])
+ AT_COMPILE([$1],
+ m4_join([ ],
+ [$1.c],
+ m4_ifval($2, [[$1-$2.c]]),
+ m4_ifval($3, [[$1-$3.c]])))
])
])
])
[m4_pushdef([AT_COND_CASE], [m4_case([$2], $][@)])
AT_SETUP([$1])
-
+AT_BISON_OPTION_PUSHDEFS([$4])
AT_DATA_GRAMMAR([[input.y]],
[[%code {
#include <stdio.h>
- static void yyerror (char const *msg);
- static int yylex (void);
+ ]AT_YYERROR_DECLARE[
+ ]AT_YYLEX_DECLARE[
}
]$4[
]$5[
%%
-
-static void
-yyerror (char const *msg)
-{
- fprintf (stderr, "%s\n", msg);
-}
-
+]AT_YYERROR_DEFINE[
static int
yylex (void)
{
# In some versions of Autoconf, AT_CHECK invokes AS_ESCAPE before
# expanding macros, so it corrupts some special characters in the
# macros. To avoid this, expand now and pass it the result with proper
-# string quotation. Assume args 7 thru 12 expand to properly quoted
+# string quotation. Assume args 7 through 12 expand to properly quoted
# strings.
m4_if(m4_index(m4_quote($3), [no-xml]), -1,
m4_ifval([$11], [m4_dquote($11)]),
m4_ifval([$12], [m4_dquote($12)]))
+AT_BISON_OPTION_POPDEFS
AT_CLEANUP
m4_popdef([AT_COND_CASE])])
projects / bison.git / blobdiff