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array matches(value, regex)
Returns the result of matching a value against a regular expression.
An array value will return the result of the first matching element, a dictionary value will return the result of the first matching entry key, otherwise the text of value itself is matched.
This function will only find a single, the first match, use the findAll function to find all matching parts.
Unlike findAll, the whole regex must match, for a partial match use .*, e.g. .*foo.*.
Both the regular expression syntax and text literals use the backslash \
and left curly bracket { characters for special purpose. Use \\ and \{ to avoid the text literal interpretation.
Flags embedded as a prefix in regex:
| Flag | Description |
|---|---|
| (?d) | Unix lines mode |
| (?i) | Case-insensitive matching (US-ASCII only) |
| (?iu) | Case-insensitive matching (Unicode, preferred) |
| (?m) | Multiline mode |
| (?s) | Dotall mode, use it when matching a multiple line value |
| (?u) | Unicode-aware case folding |
| (?x) | Ignore whitespace and comments in pattern |
null if there were no match.