@hippy/vue-router/src/util/path.js

Official router for hippy-vue

/*
 * Tencent is pleased to support the open source community by making
 * Hippy available.
 *
 * Copyright (C) 2017-2019 THL A29 Limited, a Tencent company.
 * All rights reserved.
 *
 * Licensed 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.
 */

/* eslint-disable no-param-reassign */

export function resolvePath(relative, base, append) {
  const firstChar = relative.charAt(0);
  if (firstChar === '/') {
    return relative;
  }

  if (firstChar === '?' || firstChar === '#') {
    return base + relative;
  }

  const stack = base.split('/');

  // remove trailing segment if:
  // - not appending
  // - appending to trailing slash (last segment is empty)
  if (!append || !stack[stack.length - 1]) {
    stack.pop();
  }

  // resolve relative path
  const segments = relative.replace(/^\//, '').split('/');
  for (let i = 0; i < segments.length; i += 1) {
    const segment = segments[i];
    if (segment === '..') {
      stack.pop();
    } else if (segment !== '.') {
      stack.push(segment);
    }
  }

  // ensure leading slash
  if (stack[0] !== '') {
    stack.unshift('');
  }

  return stack.join('/');
}

export function parsePath(path) {
  let hash = '';
  let query = '';

  const hashIndex = path.indexOf('#');
  if (hashIndex >= 0) {
    hash = path.slice(hashIndex);
    path = path.slice(0, hashIndex);
  }

  const queryIndex = path.indexOf('?');
  if (queryIndex >= 0) {
    query = path.slice(queryIndex + 1);
    path = path.slice(0, queryIndex);
  }

  return {
    path,
    query,
    hash,
  };
}

export function cleanPath(path) {
  return path.replace(/\/\//g, '/');
}