opencc-sys 0.4.0+1.2.0

OpenCC bindings for Rust
Documentation 
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/**
 * @file
 * Node.js API.
 *
 * @license
 * Open Chinese Convert
 *
 * Copyright 2010-2014 Carbo Kuo <byvoid@byvoid.com>
 *
 * 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.
 */

/**
 * @defgroup node_api Node.js API
 * 
 * Node.js language binding
 */

const path = require('path');
const bindingPath = require('@mapbox/node-pre-gyp').find(require.resolve('../package.json'));
const binding = require(bindingPath);

const assetsPath = path.dirname(bindingPath);
const getConfigPath = function (config) {
  let configPath = config;
  if (config[0] !== '/' && config[1] !== ':') {
    // Resolve relative path
    configPath = path.join(assetsPath, config);
  }
  return configPath;
};

/**
 * OpenCC Node.js API
 *
 * @class OpenCC
 * @constructor
 * @ingroup node_api
 */
const OpenCC = module.exports = function (config) {
  if (!config) {
    config = 's2t.json';
  }
  config = getConfigPath(config);
  this.handler = new binding.Opencc(config);
};

// This is to support both CommonJS and ES module.
OpenCC.OpenCC = OpenCC;

/**
 * The version of OpenCC library.
 *
 * @fn OpenCC.version
 * @memberof OpenCC
 * @ingroup node_api
 */
OpenCC.version = binding.Opencc.version();

/**
 * Generates dictionary from another format.
 *
 * @fn string generateDict(string inputFileName, string outputFileName, string formatFrom, string formatTo)
 * @memberof OpenCC
 * @param inputFileName Input dictionary filename.
 * @param outputFileName Output dictionary filename.
 * @param formatFrom Input dictionary format.
 * @param formatTo Input dictionary format.
 * @ingroup node_api
 */
OpenCC.generateDict = function (inputFileName, outputFileName,
  formatFrom, formatTo) {
  return binding.Opencc.generateDict(inputFileName, outputFileName,
    formatFrom, formatTo);
}

/**
 * Converts input text.
 *
 * @fn void convert(string input, function callback)
 * @memberof OpenCC
 * @param input Input text.
 * @param callback Callback function(err, convertedText).
 * @ingroup node_api
 */
OpenCC.prototype.convert = function (input, callback) {
  return this.handler.convert(input.toString(), callback);
};

/**
 * Converts input text.
 *
 * @fn string convertSync(string input)
 * @memberof OpenCC
 * @param input Input text.
 * @return Converted text.
 * @ingroup node_api
 */
OpenCC.prototype.convertSync = function (input) {
  return this.handler.convertSync(input.toString());
};

/**
 * Converts input text asynchronously and returns a Promise.
 *
 * @fn Promise convertPromise(string input)
 * @memberof OpenCC
 * @param input Input text.
 * @return The Promise that will yield the converted text.
 * @ingroup node_api
 */
OpenCC.prototype.convertPromise = function (input) {
  const self = this;
  return new Promise(function (resolve, reject) {
    self.handler.convert(input.toString(), function (err, text) {
      if (err) reject(err);
      else resolve(text);
    });
  });
};