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emacs/admin/charsets/cp932.awk
Paul Eggert bc511a64f6 Prefer HTTPS to FTP and HTTP in documentation
Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November.  Change these FTP URLs to https://ftp.gnu.org
instead.  Make similar changes for URLs to other organizations moving
away from FTP.  Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.
2017-09-13 15:54:37 -07:00

116 lines
2.8 KiB
Awk

# cp932.awk -- Add sort keys and append user defined area to CP932-2BYTE.map.
# Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
# National Institute of Advanced Industrial Science and Technology (AIST)
# Registration Number H13PRO009
# This file is part of GNU Emacs.
# GNU Emacs 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 3 of the License, or
# (at your option) any later version.
# GNU Emacs 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 GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
# Commentary:
# Add a sort key 0, 1, 2, or 3 at the tail of each line as a comment
# to realize the round trip mapping to Unicode works as described in
# this page:
# http://support.microsoft.com/default.aspx?scid=kb;EN-US;170559
# Each sort key means as below:
# 0: JISX0208 characters.
# 1: NEC special characters.
# 2: IBM extension characters.
# 3: NEC selection of IBM extension characters.
# 4: user defined area
BEGIN {
tohex["A"] = 10;
tohex["B"] = 11;
tohex["C"] = 12;
tohex["D"] = 13;
tohex["E"] = 14;
tohex["F"] = 15;
}
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];
}
return n;
}
function sjis_to_jis_ku(code)
{
s1 = int(code / 256);
s2 = code % 256;
if (s2 >= 159) # s2 >= 0x9F
{
if (s1 >= 224) # s1 >= 0xE0
j1 = s1 * 2 - 352; # j1 = s1 * 2 - 0x160
else
j1 = s1 * 2 - 224; # j1 = s1 * 2 - 0xE0
j2 = s2 - 126 # j2 = s2 - #x7E
}
else
{
if (s1 >= 224)
j1 = s1 * 2 - 353; # j1 = s1 * 2 - 0x161
else
j1 = s1 * 2 - 225; # j1 = s1 * 2 - 0xE1
if (s2 >= 127) # s2 >= #x7F
j2 = s2 - 32;
else
j2 = s2 - 31;
}
return j1 - 32;
}
/^0x[89E]/ {
sjis=decode_hex(substr($1, 3, 4))
ku=sjis_to_jis_ku(sjis);
if (ku == 13)
printf "%s # 1 %02X%02X\n", $0, j1, j2;
else if (ku >= 89 && ku <= 92)
printf "%s # 3 %02X%02X\n", $0, j1, j2;
else
printf "%s # 0 %02X%02X\n", $0, j1, j2;
next;
}
/^0xF/ {
printf "%s # 2\n", $0;
next;
}
{
print;
}
END {
code = 57344; # 0xE000
for (i = 240; i < 250; i++)
{
for (j = 64; j <= 126; j++)
printf "0x%02X%02X 0x%04X # 4\n", i, j, code++;
for (j = 128; j <= 158; j++)
printf "0x%02X%02X 0x%04X # 4\n", i, j, code++;
for (; j <= 252; j++)
printf "0x%02X%02X 0x%04X # 4\n", i, j, code++;
}
}