I've just pushed out RegexKitLite 2.0.
Documentation: http://regexkit.sourceforge.net/RegexKitLite/index.html
Download: http://downloads.sourceforge.net/regexkit/RegexKitLite-2.0.tar.bz2
(~40K)
Xcode 3.0 integrated docs:
feed://regexkit.sourceforge.net/RegexKitLiteDocSets.atom
RegexKitLite is a lightweight NSString category extension that uses
the ICU shared library that ships with Mac OS X as its regular
expression pattern matching engine.
The major new features of RegexKitLite 2.0 are:
o The ability to split a string in to a NSArray with a regular
expression.
o Search and replace using common $n capture substitution in the
replacement string.
The following NSString methods were added:
- (NSArray *)componentsSeparatedByRegex:(NSString *)regex;
- (NSString *)stringByReplacingOccurrencesOfRegex:(NSString *)regex
withString:(NSString *)replacement;
and the following NSMutableString method:
- (NSUInteger)replaceOccurrencesOfRegex:(NSString *)regex withString:
(NSString *)replacement;
Search and replace supports $n capture substitution, such as:
replacedString = [@"Search and replace all these words."
stringByReplacingOccurrencesOfRegex:@"\\b(\\w+)\\b" withString:@"<<
$1>>"];
results in a replacedString of: @"<<Replace>> <<all>> <<these>>
<<words>>."
Since regular expressions are often at the heart of a loop that is
processing a large volume of data, I've made an effort to make things
as fast as reasonably possible. RegexKitLite tries to cache data that
is expensive to create, such as compiling a regular expression or
performing a conversion of a string from its native encoding in to
UTF-16, which is the only encoding ICU knows how to deal with. Little
things like calling CFStringLength() or assigning a value indirectly
through a __strong GC pointer add up pretty quickly when they're
executed three million times in the course of processing a file.
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