sync code with last improvements from OpenBSD

app/xterm/unicode/make-precompose.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+# $XTermId: make-precompose.sh,v 1.6 2007/02/05 01:06:36 Thomas.Wolff Exp $
+# $XFree86: xc/programs/xterm/unicode/make-precompose.sh,v 1.4 2005/03/29 04:00:32 tsi Exp $
+
+cat precompose.c.head | sed -e's/@/$/g'
+
+# extract canonical decomposition data from UnicodeData.txt,
+# pad hex values to 5 digits,
+# sort numerically on base character, then combining character,
+# then reduce to 4 digits again where possible
+cut UnicodeData.txt -d ";" -f 1,6 |
+ grep ";[0-9,A-F]" | grep " " |
+ sed -e "s/ /, 0x/;s/^/{ 0x/;s/;/, 0x/;s/$/},/" |
+ sed -e "s,0x\(....\)\([^0-9A-Fa-f]\),0x0\1\2,g" |
+ (sort -k 3 || sort +2) |
+ sed -e "s,0x0\(...[0-9A-Fa-f]\),0x\1,g"
+
+cat precompose.c.tail