[dyk1454683243-sudo]

Fixes #4176

Marked version: 18.1.2

Markdown flavor: CommonMark

Description

• Fixes Code span inside link text drops the backslash or ends the link early (\], \[, backtick) #4176

Code spans bind tighter than link brackets, and their contents are literal. Two mistakes in link-label handling broke that:

1. outputLink ran cap[1].replace(/\\([\[\]])/g, '$1') over the whole label before inline lexing, so a backslash inside a code span was removed. Labels with no backtick still use that unescape. A label that also contains a backtick copies code spans through (same delimiter shape as inline code) and only unescapes brackets outside them.

2. The code alternative in the inline label pattern (`+(?!`)[^`]*?`+(?!`)) does not require the opening and closing backtick runs to be the same length, so a code span can borrow a closer from a later link. A backreference in that pattern would renumber the public href and title groups, so the link regex is unchanged. When a non-pedantic match's label contains a backtick, Tokenizer.link measures the label with the same rules as code spans and, if the real ] is earlier, rebuilds the match from there. A ] that does not start an inline destination deactivates that opener, and the end is never moved past the original match.

Escaped brackets outside code spans are unchanged, including \\[ / \\].

Contributor

• Test(s) exist to ensure functionality and minimize regression (if no tests added, list tests covering this PR); or,
• no tests required for this PR.
• If submitting new feature, it has been documented in the appropriate places.

New exact-output specs in test/specs/new/:

• link_text_codespan_backslash — [`\]`](url) keeps the backslash
• link_text_codespan_bracket — [`\[`](url) keeps the backslash
• link_text_codespan_backtick — [ ``](url)[\](url) `` is two links
• link_text_escaped_bracket — brackets escaped outside a code span still unescape, including a double backslash and an image alt
• link_text_codespan_failed_closer — a ] that does not close the link is not traded for a later destination

Committer

• CI is green (no forced merge required).
• Squash and Merge PR following conventional commit guidelines.

[vercel]

@cursoragent is attempting to deploy a commit to the MarkedJS Team on Vercel.

A member of the Team first needs to authorize it.