/text/scalc/01/func_regex.xhp

REGEX function regular expressions;extracting in spreadsheets regular expressions;REGEX function REGEX Matches and extracts or optionally replaces text using regular expressions.

REGEX( Text ; Expression [ ; [ Replacement ] [ ; Flags|Occurrence ] ] ) Text: A text or reference to a cell where the regular expression is to be applied. Expression: A text representing the regular expression, using ICU regular expressions. If there is no match and Replacement is not given, #N/A is returned. Replacement: Optional. The replacement text and references to capture groups. If there is no match, Text is returned unmodified. Flags: Optional. "g" replaces all matches of Expression in Text, not extracted. If there is no match, Text is returned unmodified. Occurrence: Optional. Number to indicate which match of Expression in Text is to be extracted or replaced. If there is no match and Replacement is not given, #N/A is returned. If there is no match and Replacement is given, Text is returned unmodified. If Occurrence is 0, Text is returned unmodified. =REGEX("123456ABCDEF";"[:digit:]";"Z") returns "Z23456ABCDEF", where the first match of a digit is replaced by "Z". =REGEX("123456ABCDEF";"[:digit:]";"Z";"g") returns "ZZZZZZABCDEF", where all digits were replaced by "Z". =REGEX("123456ABCDEF";"[126]";"";"g") returns "345ABCDEF", where any occurrence of "1", "2" or "6" is replaced by the empty string, thus deleted. =REGEX("axbxcxd";".x";;2) returns "bx", the second match of ".x". =REGEX("axbxcxd";"(.)x";"$1y";2) returns "axbycxd", the second match of "(.)x" (i.e. "bx") replaced with the captured group of one character (i.e. "b") followed by "y".

List of regular expressions ICU regular expressions