NAME¶
uniunmask - XOR bits or substitute glyphs in a GNU Unifont file.
SYNOPSIS¶
uniunmask [-iinput_file] [-ooutput_file]
DESCRIPTION¶
uniunmask reads a GNU Unifont .hex file. As it reads the font file, it
scans for code points matching entries in the "masks.hex" and
"substitutes.hex" files. "masks.hex" and
"substitutes.hex" are also in GNU Unifont .hex format, ordered by
Unicode code point (the hexadecimal number to the left of the colon on each
line).
If a code point is encountered from "substitutes.hex", the input code
point in the original .hex file is ignored (as is any entry with the same code
point in "masks.hex") and the glyph from "substitutes.hex"
is written to the output file.
Otherwise, if a code point is encountered from "masks.hex", the input
glyph in the original .hex file is XORed with the bits in the
"masks.hex" entry. The result of this XOR operation is written to
the output file.
OPTIONS¶
- -i
- Specify the input file. The default is stdin.
- -o
- Specify the output file. The default is stdout.
FILES¶
- masks.hex, substitutes.hex, *.hex GNU Unifont font
files
SEE ALSO¶
bdfimplode(1),
hex2bdf(1),
hex2bdf-split(1),
hex2sfd(1),
hexbraille(1),
hexdraw(1),
hexmerge(1),
johab2ucs2(1),
unibmp2hex(1),
unicoverage(1),
unidup(1),
unihex2bmp(1),
unipagecount(1)
AUTHOR¶
uniunmask was written by Paul Hardy.
LICENSE¶
uniunmask is Copyright © 2007 Paul Hardy, and is released under
version 2 of the GNU General Public License, or (at your option) a later
version.
BUGS¶
No known real bugs exist, except that this software does not perform extensive
error checking on its input files. If they're not in the format of the
original GNU Unifont hex file, all bets are off.