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bflatasticandClaude Opus 5.5
dd595cf2e8
In vertical type every character now sits in its own cell down the column: "10" and "22" in 「10月22日」 stand side by side in one em, centred on the column, and 月/日 start right after them. Justified (Justify All) columns no longer split a tate-chu-yoko block, and tracked or justified upright characters stay on the column's centre line instead of drifting across it. Root cause: in 0.3.1 (the reporter's build) upright glyphs were placed by the font's ascent rather than the ideographic em box, so a font with a tall ascent (Noto Sans CJK JP, 1.16 em) drew each upright character ~0.28 em down into the next cell, onto the sideways digits; #208 (after 0.3.1) replaced that with em-box placement and tate-chu-yoko, which this commit locks in with regression tests. Two defects of the same kind remained: Justify All added its inter-character gap inside a tate-chu-yoko block (the block's second digit slid down the column, away from the first), and upright glyphs turned about the middle of their advance, which tracking and justification lengthen, instead of the middle of their own cell. Tests: the issue's layout with bundled glyphs (cells one after the other, every ink inside its cell and no overlaps, 2-3 digit blocks one em and centred, single digits and 2026 on their side advancing by their length, spaces), the issue's string with craft-fonts' Japanese face (skips without craft-fonts), Justify All with a block, tracking. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>