ls-cjk-width

The spex ls table aligns by terminal display width — CJK/fullwidth glyphs count two cells, so NODE and PROMPT truncate on cell budget without mid-glyph cuts and every column stays aligned.

raw source

A CJK-titled session wrecked the spex ls table: the NODE column was cut with slice(0, 22) — shearing a label mid-word by code units — and padded with padEnd(22), which counts a double-width glyph as one cell, so every column to the right of a CJK label (or PROMPT) drifted left and the table stopped reading as a table.

expanded spec

Cells, not code units. The table's unit of alignment is the terminal CELL. sessions.ts carries three width-aware helpers — displayWidth (a small wcwidth-style range check over the wide blocks: CJK ideographs, kana, Hangul, fullwidth forms, emoji — deliberately no dependency), truncWidth (truncate to a cell budget, the ellipsis paying its own cell, never splitting a wide glyph), and padWidth (pad to a cell budget) — and formatTable's NODE and PROMPT columns (and the NOTE cap) cut and pad through them. A pure-ASCII table renders byte-for-byte as the classic padEnd output, so the fix is invisible until a wide glyph appears.

Out of scope. Label derivation is untouched — a node-agnostic session falling back to its prompt-derived title is session-label's contract, and this node only owns how any derived string is fitted into a column. Ambiguous-width code points (e.g. ×) count one cell, matching common terminal wcwidth behaviour.