@jbrowse/core/esm/util/jexlStrings.js

JBrowse 2 core libraries used by plugins

import createJexlInstance from "./jexl.js";
const compilationCache = {};
export function stringToJexlExpression(str, jexl) {
    const cacheKey = `nosig|${str}`;
    if (!compilationCache[cacheKey]) {
        const match = str.startsWith('jexl:');
        if (!match) {
            throw new Error('string does not appear to be in jexl format');
        }
        const code = str.split('jexl:')[1];
        const compiled = jexl
            ? jexl.compile(code)
            : createJexlInstance().compile(code);
        compilationCache[cacheKey] = compiled;
    }
    return compilationCache[cacheKey];
}