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jviereck / regexp.js

A JavaScript implementation of RegExp for debugging purpose.
BSD 2-Clause "Simplified" License
51 stars 8 forks source link

Lookbehinds? #2

Closed alexgorbatchev closed 11 years ago

alexgorbatchev commented 11 years ago

First of all, wow - amazing! Thank you so much for this work!

Is there any chance of lookbehind implementation to make this a killer? :)

jviereck commented 11 years ago

The goal of the project is to implement the JavaScript RegExp, which does not contain a lookbehind syntax. However, I am happy about adding a switch that enables lookbehind matching as well.

Contribution of this is welcome and might be simple todo. Happy to give an implementation outline. At the moment I don't plan to put time into this as I want to improve the visualization of RegExp first and integrate the debugger on the RegExp's MDN page.

alexgorbatchev commented 11 years ago

Thanks for your feedback. It's too bad there isn't a client side alternative to PCRE that could be used on the server (or something similar)