gpg: Add regular expression support.

* AUTHORS, COPYING.other: Update.
* Makefile.am (SUBDIRS): Add regexp sub directory.
* configure.ac (DISABLE_REGEX): Remove.
* g10/Makefile.am (needed_libs): Add libregexp.a.
* g10/trustdb.c: Remove DISABLE_REGEX support.
* regexp/LICENSE, regexp/jimregexp.c, regexp/jimregexp.h,
  regexp/utf8.c, regexp/utf8.h: New from Jim Tcl.
* regexp/UnicodeData.txt: New from Unicode.
* regexp/Makefile.am, regexp/parse-unidata.awk: New.
* tests/openpgp/Makefile.am: Remove DISABLE_REGEX support.
* tools/Makefile.am: Remove DISABLE_REGEX support.

GnuPG-bug-id: 4843
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>

1 files changed, 100 insertions, 0 deletions

diff --git a/COPYING.other b/COPYING.other
index 797f78c97..b87603f4c 100644
--- a/COPYING.other
+++ b/COPYING.other
@@ -58,3 +58,103 @@
   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+* Regular expression support
+
+  regexp/jimregexp.[ch]:
+
+  Originally:
+
+    Copyright (c) 1986 by University of Toronto.
+    Written by Henry Spencer.  Not derived from licensed software.
+
+  Subsequently modified by:
+
+    1986 John Gilmore hoptoad!gnu
+    1987 James A. Woods ames!jaw
+    1993 Christopher Seiwald seiwald@vix.com
+    2000, 2002 Christopher Seiwald <seiwald@perforce.com>
+    2010 Steve Bennett <steveb@workware.net.au>
+    2020 NIIBE Yutaka <gniibe@fsij.org>
+
+  Permission is granted to anyone to use this software for any
+  purpose on any computer system, and to redistribute it freely,
+  subject to the following restrictions:
+
+  1. The author is not responsible for the consequences of use of
+     this software, no matter how awful, even if they arise
+     from defects in it.
+
+  2. The origin of this software must not be misrepresented, either
+     by explicit claim or by omission.
+
+  3. Altered versions must be plainly marked as such, and must not
+     be misrepresented as being the original software.
+
+
+  regexp/utf8.[ch] (see regexp/LICENSE):
+
+  (c) 2010-2016 Steve Bennett <steveb@workware.net.au>
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+  2. Redistributions in binary form must reproduce the above
+     copyright notice, this list of conditions and the following
+     disclaimer in the documentation and/or other materials
+     provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE JIM TCL PROJECT ``AS IS'' AND ANY
+  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+  THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+  JIM TCL PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+  The views and conclusions contained in the software and documentation
+  are those of the authors and should not be interpreted as representing
+  official policies, either expressed or implied, of the Jim Tcl Project.
+
+
+  UnicodeData.txt:
+
+  Copyright © 1991-2020 Unicode, Inc. All rights reserved.
+  Distributed under the Terms of Use in https://www.unicode.org/copyright.html.
+
+  Permission is hereby granted, free of charge, to any person obtaining
+  a copy of the Unicode data files and any associated documentation
+  (the "Data Files") or Unicode software and any associated documentation
+  (the "Software") to deal in the Data Files or Software
+  without restriction, including without limitation the rights to use,
+  copy, modify, merge, publish, distribute, and/or sell copies of
+  the Data Files or Software, and to permit persons to whom the Data Files
+  or Software are furnished to do so, provided that either
+  (a) this copyright and permission notice appear with all copies
+  of the Data Files or Software, or
+  (b) this copyright and permission notice appear in associated
+  Documentation.
+
+  THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF
+  ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+  WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+  NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS
+  NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL
+  DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+  DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+  TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+  PERFORMANCE OF THE DATA FILES OR SOFTWARE.
+
+  Except as contained in this notice, the name of a copyright holder
+  shall not be used in advertising or otherwise to promote the sale,
+  use or other dealings in these Data Files or Software without prior
+  written authorization of the copyright holder.