Regular Expressions 101

regexp for Shahar

Verify an email is OK

A number between 0 and 100 (including them) with up to two decimals. The decimal separator can be . or , . Usefull for percentage.

Someone on IRC posted the following site: https://mathiasbynens.be/demo/url-regex which challgenged me to write a decent regex to match valid URLs in that list. This regex works in both pcre and javascript (you'll have to replace the pcre-specific syntax to make it work in JS). Don't actually use t...

Matches the four parts (simplified, traditional, pinyin, definition) of a CEDICT dictionary line

This will validate whether you starts with http(s)://

I have this regex and input string. But nothing is displayed in output area. Could you please help to know why it is not displaying output? Thanks.

are both strings matching, I wnat only the second one to match

regex for phone numbers in Israel

Regexp for kz website mask "+7(999) 999-99-99"

Validates most email addresses. Using the range [A-Za-z0-9] at the beginning instead of \w means an address cannot begin with an underscore. This range is also used to exclude underscores from the domain (part after @).

Filter selfmon events by user and group using the r= switch. The full filter is entered as: r=/(?=.FULL SET USER1)(?=.Grp= 1)/ms