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Mostly re-written to handle glibc's EUC-JP-MS.

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This commit is contained in:
Kenichi Handa 2009-06-12 07:22:13 +00:00
parent 1a3cbf350a
commit 2c36b57712
1 changed files with 64 additions and 34 deletions
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98
admin/charsets/eucjp-ms.awk
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@ -21,56 +21,84 @@
# Commentary:
# eucJP-ms is one of eucJP-open encoding defined at this page:
# http://www.opengroup.or.jp/jvc/cde/appendix.html
# http://home.m05.itscom.net/numa/cde/ucs-conv/appendix.html
# This program reads the mapping file EUC-JP-MS (of glibc) and
# generates the Elisp file eucjp-ms.el that defines two translation
# tables `eucjp-ms-decode' and `eucjp-ms-encode'.
BEGIN {
FS = "[ \t][ \t]*"
# STATE: 0/ignore, 1/JISX0208, 2/JISX0208 target range
# 3/JISX0212 4/JISX0212 target range
state = 0;
JISX0208_FROM1 = "/xad/xa1";
JISX0208_TO1 = "/xad/xfc";
JISX0208_FROM2 = "/xf5/xa1";
JISX0212_FROM = "/x8f/xf3/xf3";
print ";;; eucjp-ms.el -- translation table for eucJP-ms. -*- no-byte-compile: t -*-";
print ";;; Automatically genrated from eucJP-13th.txt, eucJP-udc.txt, eucJP-ibmext.txt";
print ";;; Automatically generated from /usr/share/i18n/charmaps/EUC-JP-MS.gz";
print "(let ((map";
printf " '(;JISEXT<->UNICODE";
tohex["A"] = 10;
tohex["B"] = 11;
tohex["C"] = 12;
tohex["D"] = 13;
tohex["E"] = 14;
tohex["F"] = 15;
print " '(;JISEXT<->UNICODE";
}
function decode_hex(str) {
n = 0;
len = length(str);
for (i = 1; i <= len; i++)
{
c = substr(str, i, 1);
if (c >= "0" && c <= "9")
n = n * 16 + (c - "0");
else
n = n * 16 + tohex[c];
function write_entry (unicode) {
if (state == 1) {
if ($2 == JISX0208_FROM1 || $2 == JISX0208_FROM2)
state = 2;
} else if (state == 3) {
if ($2 == JISX0212_FROM)
state = 4;
}
if (state == 2) {
jis = $2
gsub("/x", "", jis);
printf "\n (#x%s . #x%s)", jis, unicode;
if ($2 == JISX0208_TO1)
state = 1;
} else if (state == 4) {
jis = substr($2, 5, 8);
gsub("/x", "", jis);
printf "\n (#x%s #x%s)", jis, unicode;
}
return n;
}
/0x8F/ {
code = decode_hex(substr($1, 5, 4));
code -= 32896; # code -= 0x8080
printf "\n (#x%04x #x%s)", code, substr($2, 3, 4);
next;
/^% JIS X 0208/ {
state = 1;
next;
}
/0x[A-F]/ {
code = decode_hex(substr($1, 3, 4));
code -= 32896; # code -= 0x8080
printf "\n (#x%04x . #x%s)", code, substr($2, 3, 4);
/^% JIS X 0212/ {
state = 3;
next;
}
/^END CHARMAP/ {
state = 0;
next;
}
/^<U[0-9A-Z][0-9A-Z][0-9A-Z][0-9A-Z]>/ {
if (state > 0)
write_entry(substr($1, 3, 4));
}
/^%IRREVERSIBLE%<U[0-9A-Z][0-9A-Z][0-9A-Z][0-9A-Z]>/ {
if (state > 0)
write_entry(substr($1, 17, 4));
}
END {
print ")))";
print " (mapc #'(lambda (x)";
print " (if (integerp (cdr x))";
print " (setcar x (decode-char 'japanese-jisx0208 (car x)))";
print " (setcar x (decode-char 'japanese-jisx0212 (car x)))";
print " (setcdr x (cadr x))))";
print " (let ((code (logand (car x) #x7F7F)))";
print " (if (integerp (cdr x))";
print " (setcar x (decode-char 'japanese-jisx0208 code))";
print " (setcar x (decode-char 'japanese-jisx0212 code))";
print " (setcdr x (cadr x)))))";
print " map)";
print " (define-translation-table 'eucjp-ms-decode map)";
print " (mapc #'(lambda (x)";
@ -78,6 +106,8 @@ END {
print " (setcar x (cdr x)) (setcdr x tmp)))";
print " map)";
print " (define-translation-table 'eucjp-ms-encode map))";
print "";
print ";; arch-tag: c4191096-288a-4f13-9b2a-ee7a1f11eb4a";
}
# arch-tag: d9cc7af7-2d6e-48cd-8eed-a6d25226de7c