https://bugs.documentfoundation.org/show_bug.cgi?id=170491
Bug ID: 170491
Summary: The explanation for "\s" and [:space:] in the list of
regular expressions is unclear
Product: LibreOffice
Version: 25.8.3.2 release
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Documentation
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
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
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