[BUG] Neither [[:upper:]] nor [[:lower:]] function without ‘Match case’ selected

[southisup]

Is there an existing issue for this?

• I have searched the existing issues

Description of the Issue

Neither [[:upper:]] nor [[:lower:]] function without ‘Match case’ enabled.

Steps To Reproduce

1. Find [[:upper:]] or Find [[:lower:]]
2. ‘Match case’ not enabled
3. ‘Search mode Regular expression’ enabled
4. ‘Find next’ in any text containing uppercase and lowercase characters.

Current Behavior

Regardless of the character class, both uppercase and lowercase characters are found, unless ‘Match case’ is enabled.

Expected Behavior

That [[:upper:]] would find uppercase and [[:lower:]] would find lowercase regardless of ‘Match case’ setting.

Debug Information

Installed from winget and unfortunately admin privileges no longer available for any update in foreseeable future.

Notepad++ v8.6.2   (64-bit)
Build time : Jan 14 2024 - 02:16:00
Path : C:\Program Files\Notepad++\notepad++.exe
Command Line : 
Admin mode : OFF
Local Conf mode : OFF
Cloud Config : OFF
OS Name : Windows 10 Enterprise (64-bit)
OS Version : 22H2
OS Build : 19045.4291
Current ANSI codepage : 1252
Plugins : 
    DSpellCheck (1.5)
    HexEditor (0.9.12)
    mimeTools (3)
    NppConverter (4.5)
    NppExport (0.4)

Anything else?

No response

[alankilborn]

IMO, current behavior makes sense.

If you craft any regular expression you like (including case-related items), then before running you uncheckmark Match case, you are telling the system you don't care about case.

Tip: When working with regex (and particularly if you are a regex "purist"), always leave Match case checkmarked.