fix: truncating chapter titles using UTF-8 safe function#599
Merged
daveallie merged 7 commits intocrosspoint-reader:masterfrom Feb 1, 2026
Merged
Conversation
…b/TxtReaderActivity to use new method
lukestein
requested changes
Jan 29, 2026
daveallie
previously approved these changes
Feb 1, 2026
Contributor
There was a problem hiding this comment.
Pull request overview
This pull request fixes a bug where chapter titles with multi-byte UTF-8 characters (such as Cyrillic) were being truncated incorrectly, causing character corruption. The fix involves refactoring UTF-8 utility functions from StringUtils to a dedicated Utf8 library and improving the text truncation logic to be UTF-8 safe.
Changes:
- Moved
utf8RemoveLastCharandutf8TruncateCharsfunctions fromStringUtilsto theUtf8library - Refactored
GfxRenderer::truncatedTextto use UTF-8 safe character removal instead of byte-based string operations - Updated all call sites to use the new function locations and improved truncation API
Reviewed changes
Copilot reviewed 8 out of 8 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| src/util/StringUtils.h | Removed UTF-8 function declarations |
| src/util/StringUtils.cpp | Removed UTF-8 function implementations |
| lib/Utf8/Utf8.h | Added UTF-8 string manipulation function declarations |
| lib/Utf8/Utf8.cpp | Added UTF-8 string manipulation function implementations |
| src/activities/home/HomeActivity.cpp | Updated to call utf8RemoveLastChar from Utf8 library |
| src/activities/reader/TxtReaderActivity.cpp | Replaced manual UTF-8-unsafe truncation loop with renderer.truncatedText |
| src/activities/reader/EpubReaderActivity.cpp | Replaced manual UTF-8-unsafe truncation loop with renderer.truncatedText |
| lib/GfxRenderer/GfxRenderer.cpp | Improved truncatedText implementation to be UTF-8 safe |
💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.
daveallie
approved these changes
Feb 1, 2026
lukestein
pushed a commit
to lukestein/crosspoint-reader
that referenced
this pull request
Feb 1, 2026
…reader#599) ## Summary * Truncating chapter titles using utf8 safe functions (Cyrillic titles were split mid codepoint) * refactoring of lib/Utf8 --- ### AI Usage While CrossPoint doesn't have restrictions on AI tools in contributing, please be transparent about their usage as it helps set the right context for reviewers. Did you use AI tools to help write this code? _**< PARTIALLY >**_
Contributor
|
Running this and now seems to work great |
jdk2pq
added a commit
to jdk2pq/crosspoint-reader
that referenced
this pull request
Feb 3, 2026
* master: feat: Debugging monitor script (crosspoint-reader#555) fix: truncating chapter titles using UTF-8 safe function (crosspoint-reader#599) fix: don't wake up after USB connect (crosspoint-reader#644) Revert "fix: don't wake up after USB connect" (crosspoint-reader#643) fix: custom sleep not showing image at index 0 (crosspoint-reader#639) docs: Update USER_GUIDE.md (crosspoint-reader#625) fix: Hide button hints in landscape CW mode (crosspoint-reader#637) fix: WiFi error screen text clarifications (crosspoint-reader#612) fix: don't wake up after USB connect (crosspoint-reader#576) feat(ui): change popup logic (crosspoint-reader#442) feat: Add reading menu and delete cache function (crosspoint-reader#433)
lukestein
pushed a commit
to lukestein/crosspoint-reader
that referenced
this pull request
Feb 3, 2026
…reader#599) ## Summary * Truncating chapter titles using utf8 safe functions (Cyrillic titles were split mid codepoint) * refactoring of lib/Utf8 --- ### AI Usage While CrossPoint doesn't have restrictions on AI tools in contributing, please be transparent about their usage as it helps set the right context for reviewers. Did you use AI tools to help write this code? _**< PARTIALLY >**_
lukestein
pushed a commit
to lukestein/crosspoint-reader
that referenced
this pull request
Feb 3, 2026
…reader#599) ## Summary * Truncating chapter titles using utf8 safe functions (Cyrillic titles were split mid codepoint) * refactoring of lib/Utf8 --- ### AI Usage While CrossPoint doesn't have restrictions on AI tools in contributing, please be transparent about their usage as it helps set the right context for reviewers. Did you use AI tools to help write this code? _**< PARTIALLY >**_
Unintendedsideeffects
pushed a commit
to Unintendedsideeffects/crosspoint-reader
that referenced
this pull request
Feb 17, 2026
…reader#599) ## Summary * Truncating chapter titles using utf8 safe functions (Cyrillic titles were split mid codepoint) * refactoring of lib/Utf8 --- ### AI Usage While CrossPoint doesn't have restrictions on AI tools in contributing, please be transparent about their usage as it helps set the right context for reviewers. Did you use AI tools to help write this code? _**< PARTIALLY >**_
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.


Summary
AI Usage
While CrossPoint doesn't have restrictions on AI tools in contributing, please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? < PARTIALLY >