# Customize maint.mk                           -*- makefile -*-

# Copyright (C) 2008-2015 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 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, see <http://www.gnu.org/licenses/>.

# Update version, then recompile so that tests/bison --version be

# up-to-date, then compile our parser again with our up-to-date bison.

.PHONY: regen

regen: _version

	$(MAKE) $(AM_MAKEFLAGS)

	touch $(srcdir)/src/parse-gram.y

	$(MAKE) $(AM_MAKEFLAGS)

# Used in maint.mk's web-manual rule

manual_title = The Yacc-compatible Parser Generator

gendocs_options_ = -I $(abs_top_srcdir)/doc -I $(abs_top_builddir)/doc

# It's useful to run maintainer-*check* targets during development, but we

# don't want to wait on a recompile because of an update to $(VERSION).  Thus,

# override the _is-dist-target from GNUmakefile so that maintainer-*check*

# targets are filtered out.

_is-dist-target = $(filter-out %clean maintainer-check% maintainer-%-check, \

  $(filter maintainer-% dist% alpha beta major,$(MAKECMDGOALS)))

url_dir_list = \

  ftp://$(gnu_rel_host)/gnu/bison

# Tests not to run as part of "make distcheck".

local-checks-to-skip =			\

  sc_immutable_NEWS			\

  sc_prohibit_atoi_atof

# The local directory containing the checked-out copy of gnulib used in

# this release.  Used solely to get a date for the "announcement" target.

gnulib_dir = $(srcdir)/gnulib

bootstrap-tools = autoconf,automake,flex,gettext,gnulib

announcement_Cc_ = \

  bug-bison@gnu.org, help-bison@gnu.org, bison-patches@gnu.org, \

  coordinator@translationproject.org

update-copyright: update-b4-copyright update-package-copyright-year

update-copyright-env = \

  UPDATE_COPYRIGHT_FORCE=1 UPDATE_COPYRIGHT_USE_INTERVALS=1

## -------------------- ##

## More syntax-checks.  ##

## -------------------- ##

# At least for Mac OS X's grep, the order between . and [ in "[^.[]"

# matters:

# $ LC_ALL=fr_FR grep -nE '[^[.]' /dev/null

# $ LC_ALL=C grep -nE '[^[.]' /dev/null

# grep: invalid collating element or class

# $ LC_ALL=fr_FR grep -nE '[^.[]' /dev/null

# $ LC_ALL=C grep -nE '[^.[]' /dev/null

sc_at_parser_check:

	@prohibit='AT_PARSER_CHECK\(\[+[^.[]|AT_CHECK\(\[+\./'		\

	halt='use AT_PARSER_CHECK for and only for generated parsers'	\

	  $(_sc_search_regexp)

# Indent only with spaces.

# Taken from Coreutils.

sc_prohibit_tab_based_indentation:

	@prohibit='^ *	'						\

	halt='TAB in indentation; use only spaces'			\

	  $(_sc_search_regexp)

# Prohibit the use of `...` in tests/.  Use $(...) instead.

# Taken from Coreutils.

# Not ready for Bison yet.

#sc_prohibit_test_backticks:

#	@prohibit='`' in_vc_files='^tests/'		\

#	halt='use $$(...), not `...` in tests/'		\

#	  $(_sc_search_regexp)

# Enforce recommended preprocessor indentation style.

# Taken from Coreutils.

sc_preprocessor_indentation:

	@if cppi --version >/dev/null 2>&1; then			\

	  $(VC_LIST_EXCEPT) | grep '\.[ch]$$' | xargs cppi -a -c	\

	    || { echo '$(ME): incorrect preprocessor indentation' 1>&2;	\

		exit 1; };						\

	else								\

	  echo '$(ME): skipping test $@: cppi not installed' 1>&2;	\

	fi

###########################################################

# Taken from Coreutils.

_p0 = \([^"'/]\|"\([^\"]\|[\].\)*"\|'\([^\']\|[\].\)*'

_pre = $(_p0)\|[/][^"'/*]\|[/]"\([^\"]\|[\].\)*"\|[/]'\([^\']\|[\].\)*'\)*

_pre_anchored = ^\($(_pre)\)

_comment_and_close = [^*]\|[*][^/*]\)*[*][*]*/

# help font-lock mode: '

# A sed expression that removes ANSI C and ISO C99 comments.

# Derived from the one in GNU gettext's 'moopp' preprocessor.

_sed_remove_comments =					\

/[/][/*]/{						\

  ta;							\

  :a;							\

  s,$(_pre_anchored)//.*,\1,;				\

  te;							\

  s,$(_pre_anchored)/[*]\($(_comment_and_close),\1 ,;	\

  ta;							\

  /^$(_pre)[/][*]/{					\

    s,$(_pre_anchored)/[*].*,\1 ,;			\

    tu;							\

    :u;							\

    n;							\

    s,^\($(_comment_and_close),,;			\

    tv;							\

    s,^.*$$,,;						\

    bu;							\

    :v;							\

  };							\

  :e;							\

}

# Quote all single quotes.

_sed_rm_comments_q = $(subst ','\'',$(_sed_remove_comments))

# help font-lock mode: '

_space_before_paren_exempt =? \\n\\$$

_space_before_paren_exempt = \

  (^ *\#|(LA)?LR\([01]\)|percent_(code|define)|b4_syncline|m4_(define|init)|symbol)

# Ensure that there is a space before each open parenthesis in C code.

sc_space_before_open_paren:

	@if $(VC_LIST_EXCEPT) | grep -l '\.[ch]$$' > /dev/null; then	\

	  fail=0;							\

	  for c in $$($(VC_LIST_EXCEPT) | grep '\.[ch]$$'); do		\

	    sed '$(_sed_rm_comments_q)' $$c 2>/dev/null			\

	      | grep -i '[[:alnum:]]('					\

	      | grep -vE '$(_space_before_paren_exempt)'		\

	      | grep . && { fail=1; echo "*** $$c"; };			\

	  done;								\

	  test $$fail = 1 &&						\

	    { echo '$(ME): the above files lack a space-before-open-paren' \

		1>&2; exit 1; } || :;					\

	else :;								\

	fi

## -------------------------- ##

## syntax-checks exceptions.  ##

## -------------------------- ##

exclude = \

  $(foreach a,$(1),$(eval $(subst $$,$$$$,exclude_file_name_regexp--sc_$(a))))

$(call exclude,								\

  bindtextdomain=^lib/main.c$$						\

  preprocessor_indentation=^data/|^lib/|^src/parse-gram.[ch]$$		\

  program_name=^lib/main.c$$						\

  prohibit_always-defined_macros=^data/yacc.c$$|^djgpp/			\

  prohibit_always-defined_macros+=?|^lib/timevar.c$$			\

  prohibit_always-defined_macros+=?|^src/(parse-gram.c|system.h)$$	\

  prohibit_always-defined_macros+=?|^tests/regression.at$$		\

  prohibit_always_true_header_tests=^djgpp/subpipe.h$$|^lib/timevar.c$$	\

  prohibit_always_true_header_tests+=?|^m4/timevar.m4$$			\

  prohibit_defined_have_decl_tests=?|^lib/timevar.c$$			\

  prohibit_doubled_word=^tests/named-refs.at$$                          \

  prohibit_magic_number_exit=^doc/bison.texi$$				\

  prohibit_magic_number_exit+=?|^tests/(conflicts|regression).at$$	\

  prohibit_strcmp=^doc/bison\.texi|tests/local\.at$$			\

  prohibit_tab_based_indentation=\.(am|mk)$$|^djgpp/|^\.git		\

  require_config_h_first=^(lib/yyerror|data/(glr|yacc))\.c$$		\

  space_before_open_paren=^(data/|djgpp/)                               \

  unmarked_diagnostics=^(djgpp/|doc/bison.texi$$|tests/c\+\+\.at$$)	\

)