ueberdosis/tiptap

parseAttributes strips ids starting with number

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#7345 opened on Dec 16, 2025

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 (0 comments) (0 reactions) (0 assignees)TypeScript (23,454 stars) (1,979 forks)batch import
area: coregood first issue

Description

Affected Packages

core, markdown

Version(s)

3.13

Bug Description

console.log(parseAttributes('#2123 .foo'))
console.log(parseAttributes('#hello .foo'))
console.log(parseAttributes('#5hello .foo'))

produces

{ class: 'foo' }
{ class: 'foo', id: 'hello' }
{ class: 'foo' }

As parseAttributes is used by default this affects all markdown parsing more or less, at least nodes created by the official helper utils.

Browser Used

Firefox

Code Example URL

No response

Expected Behavior

I.e. any id with a leading number gets stripped. Reading https://github.com/jgm/pandoc/issues/7920 i'm unsure what to conclude.

  1. If pandoc now allows ids to start with number, then it should be the same here
  2. If not, then a warning should be added here and elsewhere, as this behaviour is not necessariliy known to people.

Additional Context (Optional)

No response

Dependency Updates

  • Yes, I've updated all my dependencies.

Contributor guide

Tech stack
typescriptjavascript
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
basic JavaScriptunderstanding of attribute parsing
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75
Research direction
Investigate the `parseAttributes` function used in Tiptap's markdown utilities. The bug is that IDs starting with a number are stripped. Refer to the pandoc issue linked in the report for context. The fix likely involves modifying the attribute parsing logic in the core or markdown package to allow leading numbers in IDs or add a warning. Check the source code in the repository, specifically the parseAttributes implementation, and consider updating the regex or validation logic. No existing pull request or assignment, so this is open for a first time contributor.