NAMEuniunmask - XOR bits or substitute glyphs in a GNU Unifont file.
SYNOPSISuniunmask [-iinput_file] [-ooutput_file]
DESCRIPTIONuniunmask 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.
FILESmasks.hex, substitutes.hex, *.hex GNU Unifont font files
SEE ALSObdfimplode(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)
AUTHORuniunmask was written by Paul Hardy.
LICENSEuniunmask is Copyright (C) 2007 Paul Hardy, and is released under version 2 of the GNU General Public License, or (at your option) a later version.
BUGSNo 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. 2008 Jul 6 UNIUNMASK(1)