| /* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */ |
| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| |
| /** |
| File Name: 15.5.4.6-1.js |
| ECMA Section: 15.5.4.6 String.prototype.indexOf( searchString, pos) |
| Description: If the given searchString appears as a substring of the |
| result of converting this object to a string, at one or |
| more positions that are at or to the right of the |
| specified position, then the index of the leftmost such |
| position is returned; otherwise -1 is returned. If |
| positionis undefined or not supplied, 0 is assumed, so |
| as to search all of the string. |
| |
| When the indexOf method is called with two arguments, |
| searchString and pos, the following steps are taken: |
| |
| 1. Call ToString, giving it the this value as its |
| argument. |
| 2. Call ToString(searchString). |
| 3. Call ToInteger(position). (If position is undefined |
| or not supplied, this step produces the value 0). |
| 4. Compute the number of characters in Result(1). |
| 5. Compute min(max(Result(3), 0), Result(4)). |
| 6. Compute the number of characters in the string that |
| is Result(2). |
| 7. Compute the smallest possible integer k not smaller |
| than Result(5) such that k+Result(6) is not greater |
| than Result(4), and for all nonnegative integers j |
| less than Result(6), the character at position k+j |
| of Result(1) is the same as the character at position |
| j of Result(2); but if there is no such integer k, |
| then compute the value -1. |
| 8. Return Result(7). |
| |
| Note that the indexOf function is intentionally generic; |
| it does not require that its this value be a String object. |
| Therefore it can be transferred to other kinds of objects |
| for use as a method. |
| |
| Author: christine@netscape.com |
| Date: 2 october 1997 |
| */ |
| var SECTION = "15.5.4.6-1"; |
| var VERSION = "ECMA_1"; |
| startTest(); |
| var TITLE = "String.protoype.indexOf"; |
| |
| var TEST_STRING = new String( " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~" ); |
| |
| writeHeaderToLog( SECTION + " "+ TITLE); |
| |
| var j = 0; |
| |
| for ( k = 0, i = 0x0020; i < 0x007e; i++, j++, k++ ) { |
| new TestCase( SECTION, |
| "String.indexOf(" +String.fromCharCode(i)+ ", 0)", |
| k, |
| TEST_STRING.indexOf( String.fromCharCode(i), 0 ) ); |
| } |
| |
| for ( k = 0, i = 0x0020; i < 0x007e; i++, j++, k++ ) { |
| new TestCase( SECTION, |
| "String.indexOf("+String.fromCharCode(i)+ ", "+ k +")", |
| k, |
| TEST_STRING.indexOf( String.fromCharCode(i), k ) ); |
| } |
| |
| for ( k = 0, i = 0x0020; i < 0x007e; i++, j++, k++ ) { |
| new TestCase( SECTION, |
| "String.indexOf("+String.fromCharCode(i)+ ", "+k+1+")", |
| -1, |
| TEST_STRING.indexOf( String.fromCharCode(i), k+1 ) ); |
| } |
| |
| for ( k = 0, i = 0x0020; i < 0x007d; i++, j++, k++ ) { |
| new TestCase( SECTION, |
| "String.indexOf("+(String.fromCharCode(i) + |
| String.fromCharCode(i+1)+ |
| String.fromCharCode(i+2)) +", "+0+")", |
| k, |
| TEST_STRING.indexOf( (String.fromCharCode(i)+ |
| String.fromCharCode(i+1)+ |
| String.fromCharCode(i+2)), |
| 0 ) ); |
| } |
| |
| for ( k = 0, i = 0x0020; i < 0x007d; i++, j++, k++ ) { |
| new TestCase( SECTION, |
| "String.indexOf("+(String.fromCharCode(i) + |
| String.fromCharCode(i+1)+ |
| String.fromCharCode(i+2)) +", "+ k +")", |
| k, |
| TEST_STRING.indexOf( (String.fromCharCode(i)+ |
| String.fromCharCode(i+1)+ |
| String.fromCharCode(i+2)), |
| k ) ); |
| } |
| for ( k = 0, i = 0x0020; i < 0x007d; i++, j++, k++ ) { |
| new TestCase( SECTION, |
| "String.indexOf("+(String.fromCharCode(i) + |
| String.fromCharCode(i+1)+ |
| String.fromCharCode(i+2)) +", "+ k+1 +")", |
| -1, |
| TEST_STRING.indexOf( (String.fromCharCode(i)+ |
| String.fromCharCode(i+1)+ |
| String.fromCharCode(i+2)), |
| k+1 ) ); |
| } |
| |
| new TestCase( SECTION, "String.indexOf(" +TEST_STRING + ", 0 )", 0, TEST_STRING.indexOf( TEST_STRING, 0 ) ); |
| |
| new TestCase( SECTION, "String.indexOf(" +TEST_STRING + ", 1 )", -1, TEST_STRING.indexOf( TEST_STRING, 1 )); |
| |
| print( "TEST_STRING = new String(\" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\")" ); |
| |
| |
| test(); |