Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

ST4 loading error: Error in regex

Open
#242 2 comments 5 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
25/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Domain
tooling

Research direction

Start with grammars/MagicPython.tmLanguage and reproduce the loading error in Sublime Text 4 on the reported environment. Trace the invalid regex construct shown in the error and confirm that the grammar loads and Python syntax highlighting works afterward.

Written by the indexing model from the issue text.

Description

  • Editor name and version:
  • SublimeText4: 4121
  • Platform:
  • Ubuntu 20.10
  • Color scheme:
  • any: monokau, matherialUi, MaterialUiImproved
  • MagicPython version:
  • 1.1.1
  • A sreenshot:
  • 5-10 lines of surrounding code:
    The error:
error: Error loading syntax file "Packages/MagicPython/grammars/MagicPython.tmLanguage": Error in regex: target of repeat operator is invalid in regex (?x)
  (.+?)
    (
      (?# .* and .*? in multi-line match need special handling of
        newlines otherwise SublimeText and Atom will match slightly
        differently.

        The guard 

Since the regex is very common in the tmlanguage I'm confused in ways to solve this...

Syntax is not highlighted((

Dominant language
JavaScript
Stars
1.4k
Forks
98
PR merge metrics
No merged PRs in 30d

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from MagicStack/MagicPython

All issues in MagicStack/MagicPython

Similar issues

More JavaScript issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.