Function preprocess_value

js/jquery.terminal-src.js:7905–7946

(value, options)

        // ---------------------------------------------------------------------
        var recursive_render = false;
        function preprocess_value(value, options) {
            options = options || {};
            if ($.terminal.Animation && value instanceof $.terminal.Animation) {
                value.start(self);
                return false;
            }
            if (is_function(settings.renderHandler)) {
                if (recursive_render) {
                    return value;
                }
                return unpromise(value, function(value) {
                    try {
                        recursive_render = true;
                        var ret = settings.renderHandler.call(self, value, options, self);
                        if (ret === false) {
                            return false;
                        }
                        var was_promise = is_promise(ret);
                        if (was_promise) {
                            return always(ret, function() {
                                recursive_render = false;
                            });
                        }
                        if (typeof ret === 'string' || is_node(ret)) {
                            return ret;
                        } else {
                            return value;
                        }
                    } catch (e) {
                        return [
                            '[[;red;]' + e.message + ']',
                            format_stack_trace(e.stack)
                        ].join('\n');
                    } finally {
                        if (!was_promise) {
                            recursive_render = false;
                        }
                    }
                });
            }
            return value;
        }
        // ---------------------------------------------------------------------
        // :: helper function used in render and in update
        // ---------------------------------------------------------------------