From dc1427d521c47e82e636b68da214730855b07941 Mon Sep 17 00:00:00 2001
From: Masatake YAMATO <yamato@redhat.com>
Date: Fri, 17 Jul 2015 04:25:07 +0900
Subject: [PATCH] gdbinit: add new regex based parser

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
---
 Makefile.in                          |  1 +
 Units/gdbinit-simple.d/args.ctags    |  4 +++
 Units/gdbinit-simple.d/expected.tags |  4 +++
 Units/gdbinit-simple.d/input.gdb     | 20 +++++++++++
 data/optlib/gdbinit.ctags            | 52 ++++++++++++++++++++++++++++
 misc/tinst                           |  1 +
 6 files changed, 82 insertions(+)
 create mode 100644 Units/gdbinit-simple.d/args.ctags
 create mode 100644 Units/gdbinit-simple.d/expected.tags
 create mode 100644 Units/gdbinit-simple.d/input.gdb
 create mode 100644 data/optlib/gdbinit.ctags

diff --git a/Makefile.in b/Makefile.in
index cbc15b3bba..cff47d2148 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -121,6 +121,7 @@ PRELOAD_OPTLIB =				\
 	\
 	coffee.ctags				\
 	ctags.ctags				\
+	gdbinit.ctags				\
 	m4.ctags				\
 	mib.ctags				\
 	\
diff --git a/Units/gdbinit-simple.d/args.ctags b/Units/gdbinit-simple.d/args.ctags
new file mode 100644
index 0000000000..b1d0f12ab4
--- /dev/null
+++ b/Units/gdbinit-simple.d/args.ctags
@@ -0,0 +1,4 @@
+--options=gdbinit
+--languages=+gdbinit
+--kinds-gdbinit=*
+
diff --git a/Units/gdbinit-simple.d/expected.tags b/Units/gdbinit-simple.d/expected.tags
new file mode 100644
index 0000000000..6290d50046
--- /dev/null
+++ b/Units/gdbinit-simple.d/expected.tags
@@ -0,0 +1,4 @@
+ybuffer-contents	input.gdb	/^define ybuffer-contents$/;"	d
+ybuffer-contents	input.gdb	/^document ybuffer-contents$/;"	D
+yfile_buffers_only	input.gdb	/^set $yfile_buffers_only = 0$/;"	t
+yverbose	input.gdb	/^set $yverbose = 1$/;"	t
diff --git a/Units/gdbinit-simple.d/input.gdb b/Units/gdbinit-simple.d/input.gdb
new file mode 100644
index 0000000000..0b2185f04c
--- /dev/null
+++ b/Units/gdbinit-simple.d/input.gdb
@@ -0,0 +1,20 @@
+# Taken from /usr/share/emacs/24.5/etc/emacs-buffer.gdb
+
+set main
+set $yverbose = 1
+set $yfile_buffers_only = 0
+
+define ybuffer-contents
+  ydump-buffer $arg0 /dev/stdout
+  if $yverbose && $buf->z_byte <= 1
+    yget-current-buffer-name
+    printf "[Buffer \"%s\" is empty.]\n", $ycurrent_buffer_name
+  else
+    if *($endptr-1) != '\n'
+      echo \n
+    end
+  end
+end
+document ybuffer-contents
+  Write contents of buffer N (numbered according to `ybuffer-list') to stdout.
+end
diff --git a/data/optlib/gdbinit.ctags b/data/optlib/gdbinit.ctags
new file mode 100644
index 0000000000..d8b4c2530e
--- /dev/null
+++ b/data/optlib/gdbinit.ctags
@@ -0,0 +1,52 @@
+#
+#
+#  Copyright (c) 2015, Red Hat, Inc.
+#  Copyright (c) 2015, Masatake YAMATO
+#
+#  Author: Masatake YAMATO <yamato@redhat.com>
+#
+# 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 2
+# 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+# USA.
+#
+#
+--langdef=gdbinit
+--languages=-gdbinit
+--map-gdbinit=+(.gdbinit)
+--map-gdbinit=+.gdb
+
+##
+## Ignore comments
+##
+--regex-gdbinit=/^#.*//{exclusive}
+
+##
+## define
+##
+--regex-gdbinit=/^define[[:space:]]+([^[:space:]]+)$/\1/d,definition/
+
+##
+## document
+##
+--regex-gdbinit=/^document[[:space:]]+([^[:space:]]+)$/\1/D,document/{optional}
+
+##
+## set $...
+##
+--regex-gdbinit=/^set[[:space:]]+\$([a-zA-Z0-9_]+)[[:space:]]*=/\1/t,toplevel-variable/
+
+##
+## __...set $...
+##
+--regex-gdbinit=/^[[:space:]]+set[[:space:]]+\$([a-zA-Z0-9_]+)[[:space:]]*=/\1/l,local-variable/{optional}
diff --git a/misc/tinst b/misc/tinst
index 11820e8e47..df99a76e2d 100644
--- a/misc/tinst
+++ b/misc/tinst
@@ -125,6 +125,7 @@ check()
     T_existing /share/ctags/optlib/m4.ctags -f -r
     T_existing /share/ctags/optlib/coffee.ctags -f -r
     T_existing /share/ctags/optlib/ctags.ctags -f -r
+    T_existing /share/ctags/optlib/gdbinit.ctags -f -r
     T_existing /share/ctags/optlib/mib.ctags -f -r
 
     T_existing /share/ctags/preload/default.ctags -f -r