OS version of the iPhone devices of our client Are*

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White spaces between two white spaces.

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StackOverflow RegEx, lower case letters and numbers, with exact length of 6 RegEx without boundary (1st try) [a-z0-9]{6} RegEx with boundary (solution) \b[a-z0-9]{6}\b

Regex from the Mail::RFC822::Address: regexp-based address validation Access here

for testing doc

This regex will only allow the Major.Minor.Patch pattern to pass.

To include all content checkers

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a regex to find first letter of each word

From the following: Chr. Chr.I Chr.II Chr.III Chr.IIV...

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Busca parrafos completos incluyendo nuevas lineas, los cuales terminan con un punto final

Match IPv4-CIDR (JavaScript)

matches quoted strings

Modified source from https://stackoverflow.com/a/64833638/1454045

working pattern for Issue packages

Match "I'm ##" or "I am ##"

This is an Email validation using RegExp.