Top "Happy" questions

Happy is a YACC-like parse generator for Haskell

JS: regex for numbers and spaces?

I'm using happyJS and use the regex underneath for phone validation phone: function (val) { return /^(?:[0-9]+$)/.test(val); } However this …

javascript regex validation zepto happy
Are there any tutorials on building a simple interpreter using Alex + Happy?

I'm working on a school project where I have to build an interpreter for a simple language using Alex + Happy …

haskell parsing interpreter alex happy