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mml2svg-page
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mml2svg-page
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#! /usr/bin/env -S node -r esm
/*************************************************************************
*
* component/mml2svg-page
*
* Uses MathJax v3 to convert all MathML in an HTML document.
*
* ----------------------------------------------------------------------
*
* 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.
*/
//
// Get the command-line arguments
//
var argv = require('yargs')
.demand(0).strict()
.usage('$0 [options] file.html > converted.html')
.options({
em: {
default: 16,
describe: 'em-size in pixels'
},
ex: {
default: 8,
describe: 'ex-size in pixels'
},
fontCache: {
default: 'global',
describe: 'cache type: local, global, none'
},
dist: {
boolean: true,
default: false,
describe: 'true to use webpacked version, false to use MathJax source files'
}
})
.argv;
//
// Read the HTML file
//
const htmlfile = require('fs').readFileSync(argv._[0], 'utf8');
//
// Configure MathJax
//
MathJax = {
loader: {
paths: {mathjax: 'mathjax-full/es5'},
source: (argv.dist ? {} : require('mathjax-full/components/src/source.js').source),
require: require,
load: ['adaptors/liteDOM', 'input/mml/entities']
},
svg: {
fontCache: argv.fontCache,
exFactor: argv.ex / argv.em
},
'adaptors/liteDOM': {
fontSize: argv.em
},
startup: {
document: htmlfile
}
}
//
// Load the MathJax startup module
//
require('mathjax-full/' + (argv.dist ? 'es5' : 'components/src/mml-svg') + '/mml-svg.js');
//
// Wait for MathJax to start up, and then typeset the math
//
MathJax.startup.promise.then(() => {
const adaptor = MathJax.startup.adaptor;
const html = MathJax.startup.document;
if (Array.from(html.math).length === 0) {
adaptor.remove(html.outputJax.svgStyles);
const cache = adaptor.elementById(adaptor.body(html.document), 'MJX-SVG-global-cache');
if (cache) adaptor.remove(cache);
}
console.log(adaptor.doctype(html.document));
console.log(adaptor.outerHTML(adaptor.root(html.document)));
}).catch(err => console.log(err));