checks for ie 11 user agent

A powerful regex (fewest steps possible) which gives you all the information about urls.

correctly handle the case where the value is splitted on multiple lines.

White space

This version matches any sentence that sounds like yelling even it doesnt end with ? or !

Parses date-time duration strings +-1y2M3d4h5m6s, where 'm' is the dafault. Like this, where {} contains list of capturing groups: 21 - parsed as {,,,,21,} 2y2s - parsed as {2,,,,,2}

regex for inline substitution w/ sed

Start with two letters and followed by any number of Integers

With this pattern possible select decimal that cantain comma or space