Description: The explanation for "\s" and [:space:] in the list of regular expressions is unclear. Steps to Reproduce: 1. Open "List of Regular Expressions". ( Current version is 25.8 ) https://help.libreoffice.org/latest/en-US/text/shared/01/02100001.html \s and [:space:] are Represents a space character (but not other whitespace characters). 2. Open "ICU page". ICU https://unicode-org.github.io/icu/userguide/strings/regexp.html#regular-expression-metacharacters \s is Match a white space character. White space is defined as [\t\n\f\r\p{Z}]. Others Regular expression https://en.wikipedia.org/wiki/Regular_expression Whitespace https://en.wikipedia.org/wiki/Whitespace_character Actual Results: 3. It may not be wrong, but the explanation is difficult to understand. Expected Results: 3. It would be good to reproduce a similar explanation as ICU's. Additionally, note that it may include tab characters and line breaks. Reproducible: Always User Profile Reset: No Additional Info: Sample Calc formula Tab + Line break + Half-width space + Full-width space =LEN(REGEX(CHAR(13) & CHAR(10) & " " & " ", "\s*")) -> 4 =LEN(REGEX(CHAR(13) & CHAR(10) & " " & " ", "[:space:]*")) -> 4 =LEN(REGEX(CHAR(13) & CHAR(10) & " " & " ", "[\t\n\f\r\p{Z}]*")) -> 4
(In reply to nobu from comment #0) > Description: … > Expected Results: > 3. It would be good to reproduce a similar explanation as ICU's. > Additionally, note that it may include tab characters and line breaks… …paragraph breaks and other **non visible chars** +1