Function macro

static/editor.md/lib/codemirror/mode/rust/rust.js:377–380

(type)

  }

  function macro(type) {
    if (type.match(/[\[\(\{]/)) return matchBrackets(type, expression);
    return pass();
  }
  function matchBrackets(type, comb) {
    if (type == "[") return cont(pushlex("]"), commasep(comb, "]"), poplex);
    if (type == "(") return cont(pushlex(")"), commasep(comb, ")"), poplex);