Internal editor/viewer can't copy text past a certain point

[dandv]

Version

Double Commander Version: 1.1.22 gamma Revision: 662 Commit: 6baafba86 Build date: 2025/01/19 Lazarus: 2.2.6.0 FPC: 3.2.2 Platform: x86_64-Linux-qt5 OS version: Fedora release 38 (Thirty Eight)

Widgetset library: Qt 5.15.12

Description

I've figured it's more fun to figure out why this bug happens, rather than just list the cause :)

nullchar.md

[alexx2000]

Null character is a string terminator character (in the C-API). Regular text files does not contain a null character. So technically this file are binary file. Several text editors cannot display text after a null character. So I think it is a limitation, not a bug.

[dandv]

From a non-technical user's perspective, maybe it's not a bug, maybe it's a limitation, but for sure the intended functionality doesn't work.

As a stop-gap measure, would it be possible to highlight the null character? VS Code does that, and it helped figure out immediately what was wrong (vs. the invisible null in DC or Kate):

[alexx2000]

I can show error that text can't be copied because contains a binary data.

As a stop-gap measure, would it be possible to highlight the null character?

In the plain-text viewer - yes. In the code viewer/editor - no, this is out of my control.