1 /*
  2  * isScript.js - Character type is script
  3  *
  4  * Copyright © 2012-2015, 2018, JEDLSoft
  5  *
  6  * Licensed under the Apache License, Version 2.0 (the "License");
  7  * you may not use this file except in compliance with the License.
  8  * You may obtain a copy of the License at
  9  *
 10  *     http://www.apache.org/licenses/LICENSE-2.0
 11  *
 12  * Unless required by applicable law or agreed to in writing, software
 13  * distributed under the License is distributed on an "AS IS" BASIS,
 14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 15  *
 16  * See the License for the specific language governing permissions and
 17  * limitations under the License.
 18  */
 19 
 20 // !data scriptToRange
 21 
 22 var ilib = require("../index.js");
 23 
 24 var CType = require("./CType.js");
 25 var IString = require("./IString.js");
 26 
 27 /**
 28  * Return whether or not the first character in the given string is
 29  * in the given script. The script is given as the 4-letter ISO
 30  * 15924 script code.<p>
 31  *
 32  * @static
 33  * @param {string|IString|number} ch character or code point to examine
 34  * @param {string} script the 4-letter ISO 15924 to query against
 35  * @return {boolean} true if the first character is in the given script, and
 36  * false otherwise
 37  */
 38 var isScript = function (ch, script) {
 39     var num;
 40     switch (typeof(ch)) {
 41         case 'number':
 42             num = ch;
 43             break;
 44         case 'string':
 45             num = IString.toCodePoint(ch, 0);
 46             break;
 47         case 'undefined':
 48             return false;
 49         default:
 50             num = ch._toCodePoint(0);
 51             break;
 52     }
 53 
 54     return CType._inRange(num, script, ilib.data.scriptToRange);
 55 };
 56 
 57 /**
 58  * @protected
 59  * @param {boolean} sync
 60  * @param {Object|undefined} loadParams
 61  * @param {function(*)|undefined} onLoad
 62  */
 63 isScript._init = function (sync, loadParams, onLoad) {
 64     CType._load("scriptToRange", sync, loadParams, onLoad);
 65 };
 66 
 67 module.exports = isScript;