| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import { typof } from '../utils' |
| |
| // match the binding delimiter |
| const delimiterRE = /\[\[((?:.|\n)+?)\]\]/g |
| |
| export function generateBinding (text) { |
| if (typof(text) === 'String') { |
| return { '@binding': text } |
| } |
| return text |
| } |
| |
| export function parseString (string) { |
| const tokens = [] |
| let lastIndex = delimiterRE.lastIndex = 0 |
| let match, index |
| while ((match = delimiterRE.exec(string))) { |
| index = match.index |
| if (index > lastIndex) { |
| tokens.push(string.slice(lastIndex, index)) |
| } |
| const binding = generateBinding(match[1].trim()) |
| tokens.push(binding) |
| lastIndex = index + match[0].length |
| } |
| if (lastIndex < string.length) { |
| tokens.push(string.slice(lastIndex)) |
| } |
| if (tokens.length === 1) { |
| return tokens[0] |
| } |
| return tokens |
| } |
| |
| export function filterDirective (value) { |
| if (typof(value) === 'String' && delimiterRE.test(value)) { |
| return parseString(value) |
| } |
| if (typof(value) === 'Object') { |
| const realData = {} |
| for (const key in value) { |
| realData[key] = filterDirective(value[key]) |
| } |
| return realData |
| } |
| if (typof(value) === 'Array') { |
| return value.map(filterDirective) |
| } |
| return value |
| } |