This regex matches most of the rules of conventional commits .

To be proper camel case (with digits allowed) a word: MUST start with a lower case alphabet (a through z) MUST have no spaces, punctuation or special characters CAN have at most 1 uppercase alphabet in a row MAY end in an uppercase alphabet...

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PasCamelCase A combination of pascal and camel case. PasCamelCase is a lenient case style that is allows a phrase to use either pascal case or camel case rules. In addition, PasCamelCase allows for 2-3 letter acronyms such as Rules For a phrase to be valid PasCamelCase it:...

To be proper pascal case a word with digits allowed and with upto 3 upper case letters, a word: MUST start with an upper case alphabet (A through Z) MUST have no spaces, punctuation or special characters CAN have at most 3 uppercase alphabets in a row CAN end in an uppercase alphabet ...

To be proper pascal case a word with no digits allowed and with upto 3 upper case letters, a word: MUST start with an upper case alphabet (A through Z) MUST have no digits (0 - 9) MUST have no spaces, punctuation or special characters CAN have at most 3 uppercase alphabets in a row CAN end in an upp...

To be proper pascal case a word with digits allowed and with upto 3 upper case letters, a word: MUST start with an upper case alphabet (A through Z) MUST have no digits (0 - 9) MUST have no spaces, punctuation or special characters CAN have at most 1 uppercase alphabet in a row CAN end in an upperca...

To be proper pascal case with no digits allowed, a word: MUST start with an upper case alphabet (A through Z) MUST have no digits (0 - 9) MUST have no spaces, punctuation or special characters CAN have at most 1 uppercase alphabet in a row CAN end in an uppercase alphabet...

Camel Case - digits allowed - Upto 3 upper case letters To be proper camel case a word with digits allowed and upto 3 upper case letters, a word: MUST start with a lower case alphabet (a through z) MUST have no spaces, punctuation or special characters CAN have at most 3 uppercase alphabets in a ro...

To be proper camel case a word with no digits allowed and upto 3 upper case letters, a word: Must start with a lower case alphabet (a through z) Must have no digits (0 - 9) MUST have no spaces, punctuation or special characters Can have at most 3 uppercase alphabets in a row Can end in an uppercase ...

To be proper camel case a word with no digits allowed, a word: MUST start with a lower case alphabet (a through z) MUST have no digits (0 - 9) MUST have no spaces, punctuation or special characters CAN have at most 1 uppercase alphabet in a row MAY end in an uppercase alphabet...

Any number greater than 14 means: Any number with 3 or more digits with possible leading 0's Any number with 2 digits where the first digit in in the character class [2-9] Any number with 2 digits where the first digit is 1 and the second digit in in the character class [5-9] Inspired by:...

Use It for partial/complete IPv4 address input text checking. OK examples: 19 / 192. / 192.168.1 / 192.168.1.1 / 0.0.0.0 KO examples: 1A / 01 / 192.168..1

Some applications send incorrect HEADERS:Content-Type. If it needs to pass the checks (for example, on WAF) this regex maybe used

Password includes a,A,1,!$#%

Regex para extrair titulo e descrição duma OS

This regex is designed for end users to test if there image file is name compliant.

长宽高

For string splitting / deconstructing

to match extends in a class