rxvt-unicode assume wchar_t is Unicode, but it's not true for FreeBSD.

Add a patch which converts the IM input charater to Unicode.

It requires additional patch dependancy and enlarge executable size,
so a knob WITHOUT_IMLOCALE_FIX is provided to disable this feature.

PR:		ports/98166
Submitted by:	Kuang-che Wu <kcwu (at) csie.org>

2 files changed, 86 insertions, 0 deletions

diff --git a/x11/rxvt-unicode/Makefile b/x11/rxvt-unicode/Makefile
index 819049de04e7..fe3355ec09f9 100644
--- a/x11/rxvt-unicode/Makefile
+++ b/x11/rxvt-unicode/Makefile
@@ -7,6 +7,7 @@
 
 PORTNAME=	rxvt-unicode
 PORTVERSION=	7.7
+PORTREVISION=	1
 CATEGORIES=	x11
 MASTER_SITES=	http://dist.schmorp.de/rxvt-unicode/%SUBDIR%/
 MASTER_SITE_SUBDIR=	. Attic
@@ -14,6 +15,10 @@ MASTER_SITE_SUBDIR=	. Attic
 MAINTAINER=	thierry@FreeBSD.org
 COMMENT=	A clone of the terminal emulator rxvt modified to support Unicode
 
+.if !defined(WITHOUT_IMLOCALE_FIX)
+PATCH_DEPENDS=	${SITE_PERL}/${PERL_ARCH}/Encode/HanExtra.pm:${PORTSDIR}/chinese/p5-Encode-HanExtra \
+		${SITE_PERL}/${PERL_ARCH}/Encode/JIS2K.pm:${PORTSDIR}/converters/p5-Encode-JIS2K
+.endif
 LIB_DEPENDS=	Xft.2:${PORTSDIR}/x11-fonts/libXft
 BUILD_DEPENDS=	pkg-config:${PORTSDIR}/devel/pkg-config
 
@@ -164,6 +169,7 @@ pre-everything::
 	@${ECHO_MSG} "WITHOUT_LINESPACE	disable support for line-spacing"
 	@${ECHO_MSG} "WITHOUT_MOUSEWHEEL	disable support for scrolling via mouse wheel"
 	@${ECHO_MSG} "WITHOUT_SMART_RESIZE	disable smart growth/shrink behaviour"
+	@${ECHO_MSG} "WITHOUT_IMLOCALE_FIX	disable imlocale encoding conversion fix"
 	@${ECHO_MSG}
 .ifndef(WITH_ENCODING)
 	@${ECHO_MSG} "==> You can compile in support for additional codeset groups by setting the WITH_ENCODING variable"
@@ -177,6 +183,12 @@ pre-everything::
 	@${ECHO_MSG}
 .endif
 
+.if !defined(WITHOUT_IMLOCALE_FIX)
+post-patch:
+	@${PATCH} ${PATCH_ARGS} < ${PATCHDIR}/extra-patch-imlocale
+	@cd ${WRKSRC}/src && ./gentables
+.endif
+
 pre-configure:
 	@${PERL} -pi -e 's|(PTYCHAR2\s+"[^"]+)"|\1ghijklmnopqrstuv"|' \
 		${WRKSRC}/src/ptytty.C
diff --git a/x11/rxvt-unicode/files/extra-patch-imlocale b/x11/rxvt-unicode/files/extra-patch-imlocale
new file mode 100644
index 000000000000..4cc39ce778c2
--- /dev/null
+++ b/x11/rxvt-unicode/files/extra-patch-imlocale
@@ -0,0 +1,74 @@
+diff -ur src/command.C.orig src/command.C
+--- src/command.C.orig	Mon Feb 20 22:41:16 2006
++++ src/command.C	Sun May 21 09:36:40 2006
+@@ -301,6 +301,26 @@
+ }
+ #endif
+ 
++void from_imlocale_to_locale(const char *imlocale, const char *locale, wchar_t *wkbuf, int len)
++{
++    if(!imlocale || !locale)
++	return;
++
++    if(!strchr(imlocale,'.') || !strchr(locale,'.'))
++	return;
++
++    codeset imcs = codeset_from_name(strchr(imlocale, '.'));
++    codeset cs = codeset_from_name(strchr(locale, '.'));
++
++    if (imcs == CS_UNKNOWN || cs == CS_UNKNOWN)
++	return;
++
++    for(int i=0; i<len; i++) {
++	wchar_t unicode = TO_UNICODE(imcs, wkbuf[i]);
++	wkbuf[i] = FROM_UNICODE(cs, unicode);
++    }
++}
++
+ void
+ rxvt_term::key_press (XKeyEvent &ev)
+ {
+@@ -361,6 +381,9 @@
+           if (rs[Rs_imLocale])
+             SET_LOCALE (locale);
+ 
++	  if (rs[Rs_imLocale])
++	      from_imlocale_to_locale(rs[Rs_imLocale], locale, wkbuf, len);
++	      
+           if (status_return == XLookupChars
+               || status_return == XLookupBoth)
+             {
+diff -ur src/encoding.C.orig src/encoding.C
+--- src/encoding.C.orig	Mon Feb 20 22:41:16 2006
++++ src/encoding.C	Sun May 21 09:36:40 2006
+@@ -151,6 +151,7 @@
+ static uint32_t cs_us_ascii_from_unicode (unicode_t unicode)   { return unicode <= 127 ? unicode : NOCHAR; }
+ 
+ #define cs_us_ascii_to_unicode_16 cs_unicode_to_unicode
++static unicode_t cs_unicode_16_to_unicode (uint32_t enc)       { return enc <= 65535 ? enc : NOCHAR; }
+ static uint32_t cs_unicode_16_from_unicode (unicode_t unicode) { return unicode <= 65535 ? unicode : NOCHAR; }
+ 
+ #define ENCODING_DEFAULT
+diff -ur src/encoding.h.orig src/encoding.h
+--- src/encoding.h.orig	Sun May 21 08:14:15 2006
++++ src/encoding.h	Sun May 21 08:16:54 2006
+@@ -2,6 +2,7 @@
+ #define ENCODING_H
+ 
+ #include <inttypes.h>
++#define ENCODING_TO_UNICODE 1
+ 
+ typedef uint32_t unicode_t;
+ 
+diff -ur src/gentables.orig src/gentables
+--- src/gentables	Sun May 21 08:14:15 2006
++++ src/gentables.orig	Sun May 21 08:15:08 2006
+@@ -13,7 +13,7 @@
+ 
+ my $gen;
+ 
+-$TO_UNICODE = 0; # also generate to_unicode tables
++$TO_UNICODE = 1; # also generate to_unicode tables
+ 
+ sub linear {
+    my ($a, $l, $h, $b) = @_;