зеркало из https://github.com/mozilla/pjs.git
120 строки
4.5 KiB
JavaScript
120 строки
4.5 KiB
JavaScript
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/**
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File Name: 15.5.3.2-1.js
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ECMA Section: 15.5.3.2 String.fromCharCode( char0, char1, ... )
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Description: Return a string value containing as many characters
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as the number of arguments. Each argument specifies
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one character of the resulting string, with the first
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argument specifying the first character, and so on,
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from left to right. An argument is converted to a
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character by applying the operation ToUint16 and
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regarding the resulting 16bit integeras the Unicode
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encoding of a character. If no arguments are supplied,
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the result is the empty string.
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This test covers Basic Latin (range U+0020 - U+007F)
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Author: christine@netscape.com
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Date: 2 october 1997
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*/
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var SECTION = "15.5.3.2-3";
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var VERSION = "ECMA_1";
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startTest();
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var TITLE = "String.fromCharCode()";
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writeHeaderToLog( SECTION + " "+ TITLE);
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for ( CHARCODE = 0; CHARCODE < 256; CHARCODE++ ) {
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new TestCase( SECTION,
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"(String.fromCharCode(" + CHARCODE +")).charCodeAt(0)",
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ToUint16(CHARCODE),
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(String.fromCharCode(CHARCODE)).charCodeAt(0)
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);
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}
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for ( CHARCODE = 256; CHARCODE < 65536; CHARCODE+=333 ) {
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new TestCase( SECTION,
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"(String.fromCharCode(" + CHARCODE +")).charCodeAt(0)",
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ToUint16(CHARCODE),
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(String.fromCharCode(CHARCODE)).charCodeAt(0)
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);
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}
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for ( CHARCODE = 65535; CHARCODE < 65538; CHARCODE++ ) {
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new TestCase( SECTION,
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"(String.fromCharCode(" + CHARCODE +")).charCodeAt(0)",
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ToUint16(CHARCODE),
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(String.fromCharCode(CHARCODE)).charCodeAt(0)
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);
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}
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for ( CHARCODE = Math.pow(2,32)-1; CHARCODE < Math.pow(2,32)+1; CHARCODE++ ) {
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new TestCase( SECTION,
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"(String.fromCharCode(" + CHARCODE +")).charCodeAt(0)",
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ToUint16(CHARCODE),
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(String.fromCharCode(CHARCODE)).charCodeAt(0)
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);
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}
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for ( CHARCODE = 0; CHARCODE > -65536; CHARCODE-=3333 ) {
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new TestCase( SECTION,
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"(String.fromCharCode(" + CHARCODE +")).charCodeAt(0)",
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ToUint16(CHARCODE),
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(String.fromCharCode(CHARCODE)).charCodeAt(0)
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);
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}
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new TestCase( SECTION, "(String.fromCharCode(65535)).charCodeAt(0)", 65535, (String.fromCharCode(65535)).charCodeAt(0) );
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new TestCase( SECTION, "(String.fromCharCode(65536)).charCodeAt(0)", 0, (String.fromCharCode(65536)).charCodeAt(0) );
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new TestCase( SECTION, "(String.fromCharCode(65537)).charCodeAt(0)", 1, (String.fromCharCode(65537)).charCodeAt(0) );
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test();
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function ToUint16( num ) {
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num = Number( num );
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if ( isNaN( num ) || num == 0 || num == Number.POSITIVE_INFINITY || num == Number.NEGATIVE_INFINITY ) {
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return 0;
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}
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var sign = ( num < 0 ) ? -1 : 1;
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num = sign * Math.floor( Math.abs( num ) );
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num = num % Math.pow(2,16);
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num = ( num > -65536 && num < 0) ? 65536 + num : num;
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return num;
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}
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