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# compact.awk -- Make charset map compact.
# Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
# 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 <http://www.gnu.org/licenses/>.
# Commentary:
# Make a charset map compact by changing this kind of line sequence:
# 0x00 0x0000
# 0x01 0x0001
# ...
# 0x7F 0x007F
# to one line of this format:
# 0x00-0x7F 0x0000
BEGIN {
tohex["0"] = 1;
tohex["1"] = 2;
tohex["2"] = 3;
tohex["3"] = 4;
tohex["4"] = 5;
tohex["5"] = 6;
tohex["6"] = 7;
tohex["7"] = 8;
tohex["8"] = 9;
tohex["9"] = 10;
tohex["A"] = 11;
tohex["B"] = 12;
tohex["C"] = 13;
tohex["D"] = 14;
tohex["E"] = 15;
tohex["F"] = 16;
tohex["a"] = 11;
tohex["b"] = 12;
tohex["c"] = 13;
tohex["d"] = 14;
tohex["e"] = 15;
tohex["f"] = 16;
from_code = 0;
to_code = -1;
to_unicode = 0;
from_unicode = 0;
}
function decode_hex(str, idx) {
n = 0;
len = length(str);
for (i = idx; i <= len; i++)
{
c = tohex[substr (str, i, 1)];
if (c == 0)
break;
n = n * 16 + c - 1;
}
return n;
}
/^\#/ {
print;
next;
}
{
code = decode_hex($1, 3);
unicode = decode_hex($2, 3);
if ((code == to_code + 1) && (unicode == to_unicode + 1))
{
to_code++;
to_unicode++;
}
else
{
if (to_code < 256)
{
if (from_code == to_code)
printf "0x%02X 0x%04X\n", from_code, from_unicode;
else if (from_code < to_code)
printf "0x%02X-0x%02X 0x%04X\n", from_code, to_code, from_unicode;
}
else
{
if (from_code == to_code)
printf "0x%04X 0x%04X\n", from_code, from_unicode;
else if (from_code < to_code)
printf "0x%04X-0x%04X 0x%04X\n", from_code, to_code, from_unicode;
}
from_code = to_code = code;
from_unicode = to_unicode = unicode;
}
}
END {
if (to_code < 256)
{
if (from_code == to_code)
printf "0x%02X 0x%04X\n", from_code, from_unicode;
else
printf "0x%02X-0x%02X 0x%04X\n", from_code, to_code, from_unicode;
}
else
{
if (from_code == to_code)
printf "0x%04X 0x%04X\n", from_code, from_unicode;
else
printf "0x%04X-0x%04X 0x%04X\n", from_code, to_code, from_unicode;
}
}
# arch-tag: 7e6f57c3-8e62-4af3-8916-ca67bca3a0ce
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