anomalyco/opencode
1
0
Fork 0
mirror of https://github.com/anomalyco/opencode.git synced 2026-07-21 17:56:33 -04:00
Code Issues 5.9k Packages Projects Releases 19 Wiki Activity

[PR #12764] fix(ui): use oniguruma wasm engine for markdown code highlighting #14359

New Issue
Open
opened 2026-02-16 18:19:09 -05:00 by yindo · 0 comments
yindo commented 2026-02-16 18:19:09 -05:00
Owner
Copy Link
Copy Source

Original Pull Request: https://github.com/anomalyco/opencode/pull/12764

State: open
Merged: No

What does this PR do?

The JS regex engine in @pierre/diffs can cause catastrophic backtracking on certain TextMate grammars (e.g. powershell), freezing the main thread. Switch to a dedicated oniguruma WASM-based highlighter for markdown code blocks. Diff components still use the existing @pierre/diffs highlighter. Add try/catch fallback and regression tests.

How did you verify your code works?

Added 14 unit tests including a regression test with the exact powershell code that triggered the freeze. Verified manually on desktop — the previously frozen session now renders correctly.

WX20260209-091700@2x
**Original Pull Request:** https://github.com/anomalyco/opencode/pull/12764 **State:** open **Merged:** No --- ### What does this PR do? The JS regex engine in @pierre/diffs can cause catastrophic backtracking on certain TextMate grammars (e.g. powershell), freezing the main thread. Switch to a dedicated oniguruma WASM-based highlighter for markdown code blocks. Diff components still use the existing @pierre/diffs highlighter. Add try/catch fallback and regression tests. ### How did you verify your code works? Added 14 unit tests including a regression test with the exact powershell code that triggered the freeze. Verified manually on desktop — the previously frozen session now renders correctly. <img width="2960" height="1688" alt="WX20260209-091700@2x" src="https://github.com/user-attachments/assets/5e17f500-f228-4ff4-b7a9-c55a4eb8c221" />
yindo added the pull-request label 2026-02-16 18:19:09 -05:00
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
acp
bad
bug
discussion
docs
documentation
enhancement
extension
good first issue
growth
help-wanted
mcp
model-problem
needs:compliance
nix
opentui
perf
pull-request
Mirrored from GitHub Pull Request
 tui
web
windows
zen
No Label pull-request
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
yindo
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: anomalyco/opencode#14359
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?