I need to match a pattern as follows with the added limitation that the match must be exactly 7 characters long: /^\d[a-zA-Z]\d$/ In words, this is a 7 character sequence of 6 digits and one alphabetic character in any order. How do I limit the overall length to 7 using regex? Thanks!

Esta expresión regular permite detectar las variables que están declaradas dentro de una url o route del framework Flask, con esto lo único que queda es armar un loop que recorra las coincidencias y que las remplace por los valores adecuados

Parsing html with regex is bad though.

My RFC 5322 implementation for email validation with few limitation on top level domain name

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Retrieve username or user id and post id, example urls: https://apis.google.com/u/0/wm/1/118176280023244994777/posts/4q6esduuinn https://plus.google.com/+Username/posts/4q6ezduuinn https://plus.google.com/118176280323144994777/posts/4q6ezduuinn

Простенька демонстрація пошуку смайлів за допомогою регулярних виразів

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