[irozum]

Adds a fourth $is_trimmed argument to the get_comment_excerpt filter so callbacks can tell whether the comment text was shortened to build the excerpt, without checking for a trailing … (which misfires on comments that genuinely end in an ellipsis).

Changes

• get_comment_excerpt() derives the flag by running wp_trim_words() a second time with an empty $more and comparing the result to the real excerpt. This reuses wp_trim_words()'s own counting rules, including character-based locales, instead of duplicating them.
• The hook docblock documents the new $is_trimmed parameter with @since 7.2.0.
• Appending a filter argument is backward compatible: callbacks registered with fewer accepted args are unaffected.
• This resolves the remaining ask from the dev-feedback discussion on top of the earlier switch to wp_trim_words() (the old patch no longer applies because the $use_ellipsis variable is gone).

Tests

• New data-provider test covering a long comment, a short comment, a word count equal to and above the limit, and a short comment that ends in an ellipsis.

Known edge case

• The extra wp_trim_words() call fires the wp_trim_words filter a second time. A third-party filter that discards $more and rebuilds the text could make the flag report false for a trimmed comment.

Trac ticket: https://core.trac.wordpress.org/ticket/43792

Use of AI Tools

AI assistance: Yes
Tool(s): Claude Code
Model(s): Claude Sonnet 5.5
Used for: Implementation, tests, and PR description.

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