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Why One Emoji Breaks Your Coding Agent's TUI Borders: wcwidth vs Grapheme Clusters

信息来源：DEV Community·
Claude

内容摘要

A 2025 emoji shifted Claude Code's TUI one cell until a width-table update. How wcwidth, VS16, ZWJ and mode 2027 decide where your agent's borders land.
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信息来源DEV Community
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