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tex2mml
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tex2mml
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#! /usr/bin/env -S node -r esm
/*************************************************************************
*
* component/tex2mml
*
* Uses MathJax v3 to convert a TeX string to a MathML string.
*
* ----------------------------------------------------------------------
*
* Copyright (c) 2019 The MathJax Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//
// The default TeX packages to use
//
const PACKAGES = 'base, autoload, ams, newcommand, require';
//
// Get the command-line arguments
//
var argv = require('yargs')
.demand(0).strict()
.usage('$0 [options] "math"')
.options({
inline: {
boolean: true,
describe: "process as inline math"
},
em: {
default: 16,
describe: 'em-size in pixels'
},
ex: {
default: 8,
describe: 'ex-size in pixels'
},
width: {
default: 80 * 16,
describe: 'width of container in pixels'
},
packages: {
default: PACKAGES,
describe: 'the packages to use, e.g. "base, ams"; use "*" to represent the default packages, e.g, "*, bbox"'
},
dist: {
boolean: true,
default: false,
describe: 'true to use webpacked version, false to use MathJax source files'
}
})
.argv;
//
// Configure MathJax
//
MathJax = {
loader: {
paths: {mathjax: 'mathjax-full/es5'},
source: (argv.dist ? {} : require('mathjax-full/components/src/source.js').source),
require: require,
load: ['input/tex-full', 'adaptors/liteDOM']
},
tex: {
packages: argv.packages.replace('\*', PACKAGES).split(/\s*,\s*/)
}
}
//
// Load the MathJax startup module
//
require('mathjax-full/' + (argv.dist ? 'es5' : 'components/src/startup') + '/startup.js');
//
// Wait for MathJax to start up, and then typeset the math
//
MathJax.startup.promise.then(() => {
MathJax.tex2mmlPromise(argv._[0] || '', {
display: !argv.inline,
em: argv.em,
ex: argv.ex,
containerWidth: argv.width
}).then(mml => console.log(mml));
}).catch(err => console.log(err));