TiddlyWiki wikirule for JIRA ticket links

module.js

/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";

exports.name = "jiralink";
exports.types = {inline: true};

exports.init = function(parser) {
    this.parser = parser;
    this.matchRegExp = new RegExp(/[A-Z]+-\d+/, "mg");
};

exports.parse = function() {
    // Get the details of the match
    var linkText = this.match[0];
    var href = "https://path.to.jira.server/browse/" + linkText;
    // Move past the macro call
    this.parser.pos = this.matchRegExp.lastIndex;
    return [{
        type: "element",
        tag: "a",
        attributes: {
            href: {type: "string", value: href},
            "class": {type: "string", value: "tc-tiddlylink-external"},
            target: {type: "string", value: "_blank"},
            rel: {type: "string", value: "noopener noreferrer"}
        },
        children: [{
            type: "text", text: this.match[0]
        }]
    }];
}

})();

Should use type application/javascript and field module-type: wikirule for this.