/* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (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.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is Chimera code. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 2002 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Simon Fraser * David Haas * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #import // for NSStringDrawing.h #import "NSString+Utils.h" #include "url/gurl.h" @implementation NSString (ChimeraStringUtils) - (BOOL)hasCaseInsensitivePrefix:(NSString*)inString { if ([self length] < [inString length]) return NO; return ([self compare:inString options:NSCaseInsensitiveSearch range:NSMakeRange(0, [inString length])] == NSOrderedSame); } - (BOOL)isLooselyValidatedURI { return ([self hasCaseInsensitivePrefix:@"javascript:"] || [self hasCaseInsensitivePrefix:@"data:"]); } - (BOOL)isValidURI { // isValid() will only be true for valid, well-formed URI strings GURL testURL([self UTF8String]); // |javascript:| and |data:| URIs might not have passed the test, // but spaces will work OK, so evaluate them separately. if (testURL.is_valid() || [self isLooselyValidatedURI]) { return YES; } return NO; } - (NSString *)stringByRemovingCharactersInSet:(NSCharacterSet*)characterSet { NSScanner* cleanerScanner = [NSScanner scannerWithString:self]; NSMutableString* cleanString = [NSMutableString stringWithCapacity:[self length]]; // Make sure we don't skip whitespace, which NSScanner does by default [cleanerScanner setCharactersToBeSkipped:[NSCharacterSet characterSetWithCharactersInString:@""]]; while (![cleanerScanner isAtEnd]) { NSString* stringFragment; if ([cleanerScanner scanUpToCharactersFromSet:characterSet intoString:&stringFragment]) [cleanString appendString:stringFragment]; [cleanerScanner scanCharactersFromSet:characterSet intoString:nil]; } return cleanString; } - (NSString *)stringByTrimmingWhitespace { return [self stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]]; } @end