version 2.2 of Bison.])])
+## -------- ##
+## Output. ##
+## -------- ##
+
+# b4_output_begin(FILE)
+# ---------------------
+# Enable output, i.e., send to diversion 0, expand after "#", and
+# generate the tag to output into FILE. Must be followed by EOL.
+m4_define([b4_output_begin],
+[m4_changecom()
+m4_divert_push(0)dnl
+@output(m4_unquote([$1])@)@dnl
+])
+
+
+# b4_output_end()
+# ---------------
+# Output nothing, restore # as comment character (no expansions after #).
+m4_define([b4_output_end],
+[m4_divert_pop(0)
+m4_changecom([#])
+])
+
+
## ---------------- ##
## Error handling. ##
## ---------------- ##
## Output files. ##
## -------------- ##
-# We do want M4 expansion after # for CPP macros.
-m4_changecom()
-m4_divert_push(0)dnl
-@output(b4_parser_file_name@)@
+b4_output_begin([b4_parser_file_name])
b4_copyright([Skeleton implementation for Bison GLR parsers in C],
- [2002-2012])
-[
+ [2002-2012])[
+
/* C GLR parser skeleton written by Paul Hilfinger. */
]b4_identification
}
#endif
]b4_epilogue[]dnl
-dnl
-dnl glr.cc produces its own header.
-dnl
+b4_output_end()
+
+# glr.cc produces its own header.
m4_if(b4_skeleton, ["glr.c"],
[b4_defines_if(
-[@output(b4_spec_defines_file@)@
+[b4_output_begin([b4_spec_defines_file])
b4_copyright([Skeleton interface for Bison GLR parsers in C],
[2002-2012])[
]b4_cpp_guard_open([b4_spec_defines_file])[
]b4_shared_declarations[
]b4_cpp_guard_close([b4_spec_defines_file])[
-]])])dnl
-m4_divert_pop(0)
+]b4_output_end()
+])])
m4_include(b4_pkgdatadir/[glr.c])
m4_popdef([b4_parse_param])
-m4_divert_push(0)
-@output(b4_spec_defines_file@)@
+b4_output_begin([b4_spec_defines_file])
b4_copyright([Skeleton interface for Bison GLR parsers in C++],
[2002-2006, 2009-2012])[
]b4_namespace_close[
]b4_percent_code_get([[provides]])[
]b4_cpp_guard_close([b4_spec_defines_file])[
-]m4_divert_pop(0)
+]b4_output_end()
m4_include(b4_pkgdatadir/[location.cc])])
m4_include(b4_pkgdatadir/[stack.hh])
-# We do want M4 expansion after # for CPP macros.
-m4_changecom()
-m4_divert_push(0)dnl
b4_defines_if(
-[@output(b4_spec_defines_file@)@
+[b4_output_begin([b4_spec_defines_file])
b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++],
[2002-2012])
[
])[
]b4_percent_code_get([[provides]])[
]b4_cpp_guard_close([b4_spec_defines_file])
-])dnl
-@output(b4_parser_file_name@)@
+b4_output_end()
+])
+
+
+b4_output_begin([b4_parser_file_name])
b4_copyright([Skeleton implementation for Bison LALR(1) parsers in C++],
[2002-2012])
b4_percent_code_get([[top]])[]dnl
]b4_namespace_close[
]b4_epilogue[]dnl
-m4_divert_pop(0)
+b4_output_end()
[b4_fatal([%s: %%destructor does not make sense in Java], [b4_skeleton])],
[])
-m4_divert_push(0)dnl
-@output(b4_parser_file_name@)@
+b4_output_begin([b4_parser_file_name])
b4_copyright([Skeleton implementation for Bison LALR(1) parsers in Java],
[2007-2012])
}
b4_epilogue
-m4_divert_pop(0)dnl
+b4_output_end()
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
-# We do want M4 expansion after # for CPP macros.
-m4_changecom()
-m4_divert_push(0)dnl
-@output(b4_dir_prefix[]position.hh@)@
+
+b4_output_begin([b4_dir_prefix[]position.hh])
b4_copyright([Positions for Bison parsers in C++],
[2002-2007, 2009-2012])[
]b4_namespace_close[
]b4_cpp_guard_close([b4_dir_prefix[]position.hh])
-@output(b4_dir_prefix[]location.hh@)@
+b4_output_end()
+
+
+b4_output_begin([b4_dir_prefix[]location.hh])
b4_copyright([Locations for Bison parsers in C++],
[2002-2007, 2009-2012])[
]b4_namespace_close[
]b4_cpp_guard_close([b4_dir_prefix[]location.hh])
-m4_divert_pop(0)
-m4_changecom([#])
+b4_output_end()
m4_pushdef([b4_copyright_years],
[2002-2012])
-# We do want M4 expansion after # for CPP macros.
-m4_changecom()
-m4_divert_push(0)dnl
-@output(b4_dir_prefix[]stack.hh@)@
+b4_output_begin([b4_dir_prefix[]stack.hh])
b4_copyright([Stack handling for Bison parsers in C++],
[2002-2012])[
]b4_namespace_close[
]b4_cpp_guard_close([b4_dir_prefix[]stack.hh])
-m4_divert_pop(0)
-m4_popdef([b4_copyright_years])dnl
-m4_changecom([#])
+b4_output_end()
+
+m4_popdef([b4_copyright_years])
]b4_cpp_guard_close([b4_spec_defines_file])[]dnl
])
+
## -------------- ##
## Output files. ##
## -------------- ##
-# We do want M4 expansion after # for CPP macros.
-m4_changecom()
-m4_divert_push(0)dnl
-@output(b4_parser_file_name@)@
+b4_output_begin([b4_parser_file_name])
b4_copyright([Bison implementation for Yacc-like parsers in C],
[1984, 1989-1990, 2000-2012])[
]b4_epilogue[]dnl
+b4_output_end()
+
b4_defines_if(
-[@output(b4_spec_defines_file@)@
-b4_copyright([Bison interface for Yacc-like parsers in C],
- [1984, 1989-1990, 2000-2012])[
+[b4_output_begin([b4_spec_defines_file])[
+]b4_copyright([Bison interface for Yacc-like parsers in C],
+ [1984, 1989-1990, 2000-2012])[
]b4_shared_declarations[
-]])dnl b4_defines_if
-m4_divert_pop(0)
+]b4_output_end()
+])