Regular Expressions 101

Community Patterns

alluse

-1

Regular Expression
PCRE (PHP <7.3)

/
^(?P<major>0|[1-9]\d*)\.(?P<minor>0|[1-9]\d*)\.(?P<patch>0|[1-9]\d*)(?:-(?P<prerelease>(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+(?P<buildmetadata>[0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$
/
gm

Description

/^(?P<major>0|[1-9]\d*).(?P<minor>0|[1-9]\d*).(?P<patch>0|[1-9]\d*)(?:-(?P<prerelease>(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-])(?:.(?:0|[1-9]\d|\d*[a-zA-Z-][0-9a-zA-Z-]))))?(?:+(?P<buildmetadata>[0-9a-zA-Z-]+(?:.[0-9a-zA-Z-]+)*))?$/gm

Submitted by alluse - a year ago