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Community Library Entry
1
Regular Expression
PCRE2 (PHP >=7.3)
/
^
(
\d
{2}
|
\d
{4}
)
.
(
\d
{1}
|
\d
{2}
)
(
\.
(
\d
{1}
|
\d
{2}
)?
(
(
\.
|
\-
|
\_
)?
)
[
a
-
zA
-
Z0
-
9
]
.
*
)
$
/
gm
Open regex in editor
Description
Best effort to validate/match only strings compliant with Calendar Versioning
Submitted by
Matthew Watkins
-
2 months ago