Developer builds emoji-linting tool that halts site deploys on style violations

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A developer managing a fleet of automated static sites created a custom linting tool called emoji-lint to enforce a strict no-emoji house style rule across all published content. The tool scans HTML files, RSS feeds, and JSON-LD metadata using a Unicode regex, and exits with a failure code if any emoji is detected, blocking that day's deployment. Because a hard stop revealed legitimate exceptions, the tool was designed to "mask" — not delete — content in three categories: verbatim quotes, proper nouns with official symbol-containing spellings, and passages where emoji are the subject of discussion. Verbatim quotes are only exempted when explicitly marked with a data attribute, preventing cosmetic CSS classes from being abused as loopholes. Proper noun exceptions are managed via a curated name list, with a safeguard that rejects entries consisting solely of symbols to prevent the exemption from undermining the rule entirely.

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