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July 22, 2016 05:40
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Regular Expression Cheat Sheet
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# Validate Base64 string. | |
[0-9a-zA-Z\+=]{20,} | |
# Validate Subnet in CIDR notation. | |
^(([01]?\d?\d|2[0-4]\d|25[0-5])\.){3}([01]?\d?\d|2[0-4]\d|25[0-5])\/(\d{1}|[0-2]{1}\d{1}|3[0-2])$ | |
# Validate IP address range. | |
^(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[0-9]{1,2})(\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[0-9]{1,2})){3}-(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[0-9]{1,2})(\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[0-9]{1,2})){3}$ | |
# Validate IP address. | |
^(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[0-9]{1,2})(\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[0-9]{1,2})){3}$ | |
# Validate an email address. | |
\b[A-Z0-9._%+-]+@(?:[A-Z0-9-]+\.)+[A-Z]{2,4}\b | |
# Validate an email address (RFC 5322 official definition) | |
(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)* | |
| "(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f] | |
| \\[\x01-\x09\x0b\x0c\x0e-\x7f])*") | |
@ (?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])? | |
| \[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3} | |
(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]: | |
(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f] | |
| \\[\x01-\x09\x0b\x0c\x0e-\x7f])+) | |
\]) | |
# Retrieve index from Win32_LogicalDiskToPartition antecedent. | |
(?<=Disk #).+(?=\,) | |
# Retrieve response header containing YouTrack issue number (New-YouTrackItem). | |
[^/]+$ | |
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