Regular Expressions 101

HTML CODE given by (hex number   OR number &#160 OR name  )

french phone number

Searching for phone in HTML where content in 1-st tag descibes phone type in some next tag

simple json key -value parser

infinite emails with ; separator a@b.c;a@b.c;a@b.c;a@b.c;a@b.c

Validates following phone number schemes: 1234567 123-45-67 12-34-578 711234567 0711234567...

Usernames with dots, dashes and underscores. Hostnames limited to 64 chars, dash disallowed at first char of domain segment, only one consecutive dash or dot, one-char domains possible, multi-subdomains, long TLDs.

Names that accept maximum of 1 hyphen or 1 Quote, does not allow white spaces, allows an unlimited length of name.

این عبارت منظم یک کلاس سی اس اس را پیدا می کند

Find if/while in JS code written in PCRE

Pulls data from the 3rd line of different columns of text.

0111100 will be matched whereas 0111110 will not. Change \1{4} to max repeating count. For max 9 repeating -> \1{9}