The first half of this tutorial introduced you to regular expressions and the Regex API. You learned about the Pattern class, then worked through examples demonstrating regex constructs, from basic ...

プログラマーなら一度はこう思ったことがあるはず。「え、なんで ^.*?(foo|bar)+$ で文字列を判定できるの？」「なんで1行で1000文字超えるの？」――そう、それが正規表現、通称「Regex」。 文字列マッチングという一見地味な分野で、なぜここまで厨二病的な ...

This is how to convert regex (REGular EXpression) to DFA by creating and using syntax tree in Java language. This project is a part of a bigger project we'd done for Compiler Course to create a simple ...

If you’ve struggled with regular expressions that took hours to match when you needed them to complete in seconds, this article is for you. Java developer Cristian Mocanu explains where and why the ...

"Regular expressions" are a mathematically defined concept, invented by Stephen Kleene in 1956. In their most minimalistic (and original) version, these expressions define languages using just literal ...

I was involved in a recent discussion on the "best" way to remove a given parameter from a URL string. The conversation began with using string primitives to split and join the parameter, a method ...