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jameswitzeman.net/fonts/terminus-font/bin/otb1cli.js
T
2026-05-29 11:30:10 -07:00

130 lines
3.6 KiB
JavaScript

/*
Copyright (C) 2018-2020 Dimitar Toshkov Zhekov <dimitar.zhekov@gmail.com>
This program 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 2 of the License, or (at your option)
any later version.
This program 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 this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
'use strict';
const fnutil = require('./fnutil.js');
const fncli = require('./fncli.js');
const fnio = require('./fnio.js');
const otb1exp = require('./otb1exp.js');
// -- Params --
class Params extends otb1exp.Params {
constructor() {
super();
this.output = null;
this.encoding = 'utf-8';
this.realTime = true;
}
}
// -- Options --
const HELP = ('' +
'usage: otb1cli [options] [INPUT]\n' +
'Convert a BDF font to OTB\n' +
'\n' +
' -o OUTPUT output file (default = stdout, may not be a terminal)\n' +
' -d DIR-HINT set font direction hint (default = 0)\n' +
' -e EM-SIZE set em size (default = 1024)\n' +
' -g LINE-GAP set line gap (default = 0)\n' +
' -l LOW-PPEM set lowest recorded PPEM (default = font height)\n' +
' -E ENCODING BDF string properties encoding (default = utf-8)\n' +
' -W WLANG-ID set Windows name-s language ID (default = 0x0409)\n' +
' -T use the current date and time for created/modified\n' +
' (default = get them from INPUT if not stdin/terminal)\n' +
' -X set xMaxExtent = 0 (default = max character width)\n' +
' -L write a single loca entry (default = CHARS entries)\n' +
' -P write PostScript glyph names (default = no names)\n' +
'\n' +
'Notes:\n' +
' The input must be a BDF 2.1 font with unicode encoding.\n' +
' All bitmaps are expanded first. Bitmap widths are used.\n' +
' Overlapping characters are not supported.\n');
const VERSION = 'otb1cli 0.22, Copyright (C) 2018-2020 Dimitar Toshkov Zhekov\n\n' + fnutil.GPL2PLUS_LICENSE;
class Options extends otb1exp.Options {
constructor() {
super(['-o', '-E'], HELP, VERSION);
}
parse(name, value, params) {
switch (name) {
case '-o':
params.output = value;
break;
case '-E':
params.encoding = value;
break;
case '-T':
params.realTime = false;
break;
default:
super.parse(name, value, params);
}
}
}
// -- Main --
function mainProgram(nonopt, parsed) {
if (nonopt.length > 1) {
throw new Error('invalid number of arguments, try --help');
}
// READ INPUT
let ifs = new fnio.InputFileStream(nonopt[0], parsed.encoding);
try {
if (parsed.realTime) {
try {
const stat = ifs.fstat();
if (stat != null) {
parsed.created = stat.birthtime;
parsed.modified = stat.mtime;
}
} catch (e) {
fnutil.warning(ifs.location(), e.message);
}
}
var font = otb1exp.Font.read(ifs, parsed);
ifs.close();
} catch (e) {
e.message = ifs.location() + e.message;
throw e;
}
// WRITE OUTPUT
let ofs = new fnio.OutputFileStream(parsed.output, null);
try {
const table = new otb1exp.SFNT(font);
ofs.write(table.data.slice(0, table.size));
ofs.close();
} catch (e) {
e.message = ofs.location() + e.message + ofs.destroy();
throw e;
}
}
if (require.main === module) {
fncli.start('otb1cli.js', new Options(), new Params(), mainProgram);
}