Function chain

static/editor.md/lib/codemirror/mode/tcl/tcl.js:37–40

(stream, state, f)

    var functions = parseWords("if elseif else and not or eq ne in ni for foreach while switch");
    var isOperatorChar = /[+\-*&%=<>!?^\/\|]/;
    function chain(stream, state, f) {
      state.tokenize = f;
      return f(stream, state);
    }
    function tokenBase(stream, state) {
      var beforeParams = state.beforeParams;
      state.beforeParams = false;