# --------------------------------------------------
# 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_bmatch([$3], [%language "[Cc]\+\+"\|%skeleton "[a-z0-9]+\.cc"], [$1], [$2])])
m4_pushdef([AT_SKEL_JAVA_IF],
[m4_bmatch([$3], [%language "[Jj][Aa][Vv][Aa]"\|%skeleton "[a-z0-9]+\.java"], [$1], [$2])])
+# The target language: "c", "c++", or "java".
m4_pushdef([AT_LANG],
[AT_SKEL_JAVA_IF([java],
[AT_SKEL_CC_IF([c++],
m4_pushdef([AT_LOCATION_IF],
[m4_bmatch([$3], [%locations], [$1], [$2])])
m4_pushdef([AT_LOCATION_TYPE_IF],
-[m4_bmatch([$3], [%define location_type], [$1], [$2])])
+[m4_bmatch([$3], [%define \(api\.location\.type\|location_type\)], [$1], [$2])])
m4_pushdef([AT_PARAM_IF],
[m4_bmatch([$3], [%parse-param], [$1], [$2])])
+# Comma-terminated list of formals parse-parameters.
+# E.g., %parse-param { int x } %parse-param {int y} -> "int x, int y, ".
+# FIXME: Support grouped parse-param.
+m4_pushdef([AT_PARSE_PARAMS])
+m4_bpatsubst([$3], [%parse-param { *\([^{}]*[^{} ]\) *}],
+ [m4_append([AT_PARSE_PARAMS], [\1, ])])
+
m4_pushdef([AT_PURE_IF],
[m4_bmatch([$3], [%define *api\.pure\|%pure-parser],
[m4_bmatch([$3], [%define *api\.pure *"?false"?], [$2], [$1])],
[m4_bmatch([$3], [\(%define api\.prefix\|%name-prefix\) ".*"],
[m4_bregexp([$3], [\(%define api\.prefix\|%name-prefix\) "\([^""]*\)"], [\2])],
[yy])])
+m4_pushdef([AT_TOKEN_CTOR_IF],
+[m4_bmatch([$3], [%define api.token.constructor], [$1], [$2])])
+m4_pushdef([AT_TOKEN_PREFIX],
+[m4_bmatch([$3], [%define api.token.prefix ".*"],
+ [m4_bregexp([$3], [%define api.token.prefix "\(.*\)"], [\1])])])
m4_pushdef([AT_API_prefix],
[m4_bmatch([$3], [%define api\.prefix ".*"],
[m4_bregexp([$3], [%define api\.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])])])
m4_pushdef([AT_YYSTYPE],
[AT_SKEL_CC_IF([AT_NAME_PREFIX[::parser::semantic_type]],
[m4_pushdef([AT_LOC], [(*llocp)])
m4_pushdef([AT_VAL], [(*lvalp)])
m4_pushdef([AT_YYLEX_FORMALS],
- [AT_YYSTYPE *lvalp[]AT_LOCATION_IF([, AT_YYLTYPE *llocp])])
+ [AT_YYSTYPE *lvalp[]AT_LOCATION_IF([, AT_YYLTYPE *llocp])])
m4_pushdef([AT_YYLEX_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_YYLEX_PRE_FORMALS],
- [AT_YYLEX_FORMALS, ])
+ [AT_YYLEX_FORMALS, ])
m4_pushdef([AT_YYLEX_PRE_ARGS],
- [AT_YYLEX_ARGS, ])
+ [AT_YYLEX_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_YYERROR_ARG_LOC_IF])
m4_popdef([AT_API_PREFIX])
m4_popdef([AT_API_prefix])
+m4_popdef([AT_TOKEN_PREFIX])
+m4_popdef([AT_TOKEN_CTOR_IF])
m4_popdef([AT_NAME_PREFIX])
m4_popdef([AT_GLR_OR_PARAM_IF])
m4_popdef([AT_PURE_AND_LOC_IF])
m4_popdef([AT_LOCATION_TYPE_IF])
m4_popdef([AT_LOCATION_IF])
+m4_popdef([AT_PARSE_PARAMS])
m4_popdef([AT_PARAM_IF])
m4_popdef([AT_LEXPARAM_IF])
m4_popdef([AT_YACC_IF])
# Must be called inside a AT_BISON_OPTION_PUSHDEFS/POPDEFS pair.
m4_define([AT_YYERROR_FORMALS],
[m4_case(AT_LANG,
-[c], [AT_YYERROR_ARG_LOC_IF([AT_YYLTYPE *llocp, ])[const char *msg]])[]dnl
+[c], [AT_YYERROR_ARG_LOC_IF([AT_YYLTYPE *llocp, ])AT_PARSE_PARAMS [const char *msg]])[]dnl
])
m4_define([AT_YYERROR_PROTOTYPE],
/* A C error reporting function. */
static
]AT_YYERROR_PROTOTYPE[
-{
-]AT_YYERROR_SEES_LOC_IF([[
- fprintf (stderr, "%d.%d",
- ]AT_LOC_FIRST_LINE[, ]AT_LOC_FIRST_COLUMN[);
- if (]AT_LOC_FIRST_LINE[ != ]AT_LOC_LAST_LINE[)
- fprintf (stderr, "-%d.%d",
- ]AT_LOC_LAST_LINE[, ]AT_LOC_LAST_COLUMN[ - 1);
- else if (]AT_LOC_FIRST_COLUMN[ != ]AT_LOC_LAST_COLUMN[ - 1)
- fprintf (stderr, "-%d",
- ]AT_LOC_LAST_COLUMN[ - 1);
+{]m4_bpatsubst(m4_defn([AT_PARSE_PARAMS]),
+ [[^,]+[^A-Za-z_0-9]\([A-Za-z_][A-Za-z_0-9]*\), *], [
+ YYUSE(\1);])dnl
+AT_YYERROR_SEES_LOC_IF([[
+ YY_LOCATION_PRINT (stderr, ]AT_LOC[);
fprintf (stderr, ": ");]])[
fprintf (stderr, "%s\n", msg);
}]],
[c++], [[/* A C++ error reporting function. */
void
-]AT_NAME_PREFIX[::parser::error (const location_type& l, const std::string& m)
-{
- (void) l;
- std::cerr << ]AT_LOCATION_IF([l << ": " << ])[m << std::endl;
+]AT_NAME_PREFIX[::parser::error (]AT_LOCATION_IF([[const location_type& l, ]])[const std::string& m)
+{ std::cerr << ]AT_LOCATION_IF([l << ": " << ])[m << std::endl;
}]],
[java], [AT_LOCATION_IF([[public void yyerror (Calc.Location l, String s)
- {
+{
if (l == null)
System.err.println (s);
else
[m4_null_if([$2], [AT_BISON_CHECK_XML($@)])
AT_BISON_CHECK_NO_XML($@)])
-m4_define([AT_BISON_WERROR_MSG],
- [[bison: warnings being treated as errors]])
-
-
# AT_BISON_CHECK_(BISON_ARGS, [OTHER_AT_CHECK_ARGS])
# --------------------------------------------------
# Low-level macro to run bison once.
[m4_null_if([$2], [AT_BISON_CHECK_WARNINGS_($@)])])])
m4_define([AT_BISON_CHECK_WARNINGS_],
-[[# Defining POSIXLY_CORRECT causes bison to complain if options
-# are added after the grammar file name, so skip these checks
-# in that case.
-if test -z "${POSIXLY_CORRECT+set}"; then
- ]AT_SAVE_SPECIAL_FILES[
+[[# Defining POSIXLY_CORRECT causes bison to complain if options are
+# added after the grammar file name, so skip these checks in that
+# case.
+if test "$POSIXLY_CORRECT_IS_EXPORTED" = false; then
+ ]AT_SAVE_SPECIAL_FILES[
# To avoid expanding it repeatedly, store specified stdout.
]AT_DATA([expout], [$3])[
# Build expected stderr up to and including the "warnings being
# treated as errors" message.
- ]AT_DATA([[at-bison-check-warnings]], [$4])[
- at_bison_check_first=`sed -n \
- '/: warning: /{=;q;}' at-bison-check-warnings`
- : ${at_bison_check_first:=1}
- at_bison_check_first_tmp=`sed -n \
- '/conflicts: [0-9].*reduce$/{=;q;}' at-bison-check-warnings`
- : ${at_bison_check_first_tmp:=1}
- if test $at_bison_check_first_tmp -lt $at_bison_check_first; then
- at_bison_check_first=$at_bison_check_first_tmp
- fi
- if test $at_bison_check_first -gt 1; then
- sed -n "1,`expr $at_bison_check_first - 1`"p \
- at-bison-check-warnings > experr
- fi
- echo ']AT_BISON_WERROR_MSG[' >> experr
-
- # Finish building expected stderr and check. Unlike warnings,
- # complaints cause bison to exit early. Thus, with -Werror, bison
- # does not necessarily report all warnings that it does without
- # -Werror, but it at least reports one.
- at_bison_check_last=`sed -n '$=' stderr`
- : ${at_bison_check_last:=1}
- at_bison_check_last=`expr $at_bison_check_last - 1`
- sed -n "$at_bison_check_first,$at_bison_check_last"p \
- at-bison-check-warnings >> experr
- ]AT_CHECK([[sed 's,.*/\(]AT_BISON_WERROR_MSG[\)$,\1,' \
- stderr 1>&2]], [[0]], [[]], [experr])[
+ ]AT_DATA([[experr]], [$4])[
+ $PERL -pi -e 's{(.*): warning: (.*)\[-W(.*)\]$}
+ {$][1: error: $][2\@<:@-Werror=$][3@:>@}' experr
+ ]AT_CHECK([[sed 's,.*/$,,' stderr 1>&2]], [[0]], [[]], [experr])[
# Now check --warnings=error.
cp stderr experr
# Don't combine these Bison invocations since we want to be sure that
# --report=all isn't required to get the full XML file.
AT_BISON_CHECK_([[--report=all --report-file=xml-tests/test.output \
- --graph=xml-tests/test.dot ]]AT_BISON_ARGS,
- [[0]], [ignore], [ignore])
+ --graph=xml-tests/test.dot ]]AT_BISON_ARGS,
+ [[0]], [ignore], [ignore])
AT_BISON_CHECK_([[--xml=xml-tests/test.xml ]]AT_BISON_ARGS,
- [[0]], [ignore], [ignore])
+ [[0]], [ignore], [ignore])
m4_popdef([AT_BISON_ARGS])dnl
[cp xml-tests/test.output expout]
AT_CHECK([[$XSLTPROC \
# otherwise pass "-c"; this is a hack. The default SOURCES is OUTPUT
# with trailing .o removed, and ".c" appended.
m4_define([AT_COMPILE],
-[AT_CHECK(m4_join([ ],
+[AT_CHECK([case $POSIXLY_CORRECT_IS_EXPORTED:$C_COMPILER_POSIXLY_CORRECT in
+ true:false) echo 'cannot compile properly with POSIXLY_CORRECT' && exit 77;;
+esac])
+AT_CHECK(m4_join([ ],
[$CC $CFLAGS $CPPFLAGS],
[m4_bmatch([$1], [[.]], [-c], [$LDFLAGS])],
[-o $1],
[m4_default([$2], [m4_bpatsubst([$1], [\.o$]).c])],
[m4_bmatch([$1], [[.]], [], [$LIBS])]),
- 0, [ignore], [ignore])])
+ 0, [ignore], [ignore])])
# AT_COMPILE_CXX(OUTPUT, [SOURCES = OUTPUT.cc])
# ---------------------------------------------
[-o $1],
[m4_default([$2], [m4_bpatsubst([$1], [\.o$]).cc])],
[m4_bmatch([$1], [[.]], [], [$LIBS])]),
- 0, [ignore], [ignore])])
+ 0, [ignore], [ignore])])
# AT_JAVA_COMPILE(SOURCES)
# ------------------------
[java],
[AT_BISON_CHECK([-o $1.java $1.y])
AT_LANG_COMPILE([$1],
- m4_join([ ],
- [$1.java],
- m4_ifval($2, [[$1-$2.java]]),
+ m4_join([ ],
+ [$1.java],
+ m4_ifval($2, [[$1-$2.java]]),
m4_ifval($3, [[$1-$3.java]])))],
[c++],
[AT_BISON_CHECK([-o $1.cc $1.y])
AT_LANG_COMPILE([$1],
- m4_join([ ],
- [$1.cc],
- m4_ifval($2, [[$1-$2.cc]]),
+ m4_join([ ],
+ [$1.cc],
+ m4_ifval($2, [[$1-$2.cc]]),
m4_ifval($3, [[$1-$3.cc]])))],
[c],
[AT_BISON_CHECK([-o $1.c $1.y])
AT_LANG_COMPILE([$1],
- m4_join([ ],
- [$1.c],
- m4_ifval($2, [[$1-$2.c]]),
+ m4_join([ ],
+ [$1.c],
+ m4_ifval($2, [[$1-$2.c]]),
m4_ifval($3, [[$1-$3.c]])))])
])
+
+# AT_SKIP_IF_CANNOT_LINK_C_AND_CXX
+# --------------------------------
+# Check that we can link together C and C++ objects.
+m4_define([AT_SKIP_IF_CANNOT_LINK_C_AND_CXX],
+[AT_DATA([c-and-cxx.h],
+[[#ifdef __cplusplus
+extern "C"
+{
+#endif
+ int fortytwo (void);
+#ifdef __cplusplus
+}
+#endif
+]])
+AT_DATA([c-only.c],
+[[#include "c-and-cxx.h"
+int
+main (void)
+{
+ return fortytwo () == 42 ? 0 : 1;
+}
+]])
+AT_DATA([cxx-only.cc],
+[[#include "c-and-cxx.h"
+int fortytwo ()
+{
+ return 42;
+}
+]])
+AT_COMPILE([c-only.o], [c-only.c])
+AT_COMPILE_CXX([cxx-only.o], [cxx-only.cc])
+AT_CHECK([$CXX $CXXFLAGS $CPPFLAGS $LDFLAGS c-only.o cxx-only.o -o c-and-cxx ||
+ exit 77], [ignore], [ignore])
+AT_PARSER_CHECK([./c-and-cxx])
+])
+
+
## ---------------------------- ##
## Running a generated parser. ##
## ---------------------------- ##
projects / bison.git / blobdiff