eval-jme

#!/usr/bin/env node

/** Evaluate a JME expression and print its result 
 *
 * Example:
 *      ./eval-jme "1+2"
 * produces
 *      3
 *
 */

require('./tests/numbas-runtime.js');
require('./tests/locales.js');
require('./tests/marking_scripts.js');

function die(e) {
    console.error(e.message);
    process.exit(1);
}

Numbas.runImmediately(['jme','localisation'],function() {
    const expr = process.argv[2];
    try {
        const res = Numbas.jme.builtinScope.evaluate(expr);
        console.log(Numbas.jme.display.treeToJME({tok: res}, {ignorestringattributes: true, wrapexpressions: true}));
    } catch(e) {
        die(e);
    }
});