Why your slug generator is dropping Malayalam vowels and how to fix it

TL;DR: Most slug libraries only allow \p{L} (letters), \p{N} (numbers), and \p{S} (symbols). In Indic scripts like Malayalam, vowels are often combining marks (\p{M}), not letters. The fix is simple: add \p{M} to your allowed character class. I’ll show you exactly how. I recently fixed this memos PR #6051. The bug was simple but devastating: Malayalam tags like #കവിത were being truncated to #കവ. The last two characters — ി (vowel sign I) and ത — were rendered outside tag.

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