RegexToolbox.kt

Regular expression tools for Kotlin developers.

Regular expressions made easy

RegexToolbox allows you to build regular expressions in a more human-readable way using a lightweight, powerful API. It offers a lot of benefits over using raw regex syntax in strings:

• No knowledge of regular expression syntax is required: just use simple, intuitively-named classes, methods and functions.
• Code is easier to read, understand and maintain.
• Code is safer and far less prone to regular expression syntax errors and programmer errors.

It is fully documented in the project wiki.

Breaking changes in 3.0

All RegexBuilder features that were deprecated in version 2.4 have been removed in 3.0.

Removed	Replaced with
RegexBuilder() public constructor	regex { ... }
buildRegex()	regex { ... }
buildPattern()	pattern { ... }
startGroup() ... endGroup()	group { ... }
startNamedGroup() ... endGroup()	namedGroup { ... }
startNonCapturingGroup() ... endGroup()	nonCapturingGroup { ... }
addLogger()	No replacement: logging has been removed.

In a nutshell: the old Java-style syntax is completed removed in 3.0. RegexToolbox.kt now exclusively uses the new type-safe builder syntax introduced in 2.0, for example:

val regex = regex {
    group {
        letter()
        digit()
    } // Yay! Can't forget to close the group
} // Yay! No need to call buildRegex()

Usage (Gradle)

RegexToolbox.kt is hosted on JitPack. Replace x.y.z with the latest version (shown in the JitPack badge at the top of this page).

repositories {
    ...
    maven { url 'https://jitpack.io' }
}

implementation 'com.github.markwhitaker:RegexToolbox.kt:x.y.z'

Also for Kotlin developers

MimeTypes.kt: MIME type constants for your Kotlin projects

RegexToolbox for other languages

RegexToolbox for Java

RegexToolbox for .NET

RegexToolbox for JavaScript

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RegexToolbox: Now you can be a hero without knowing regular expressions.