* Text: run lookup by bisection, bounded path flattening, font folders and files shared
run_at scanned the style runs from the first for every character; the
ordered runs are now bisected (the scan remains for gaps). Path text
flattened at a fixed 0.05 tolerance, so huge coordinates made hundreds of
millions of points; the tolerance grows with the path's size and
non-finite paths measure nothing. Font name records aliasing one string
are decoded once. The font folder walk listed folders reached through
several links again along every path; each real folder is listed once.
Faces of one font collection each read the whole file; they share it.
* address review: font walk breadth-first across roots, font file cache keyed by size and mtime and read outside the lock, first-subpath path measure with finite check, scratch dir guard
* address review: font files shared through file_bytes with the open file's metadata; run lookup by bisection only for ordered runs
* Pass the runs' ordered flag with them to stay under the argument limit
* address review: reversed run ranges take the scan
text/layout: upstream split paragraph() into Para/place_line helpers and moved the tests to
layout/tests.rs. The branch's changes are re-applied there: the resolved paragraph direction
is passed to margins_for/avail_for/align_for (RTL point text with Justify sits flush right),
first_ascent/plausible_first and ParaLine.first/style_first (box first baseline is the d
height, vertical text keeps the ascent), and the Justify All last-line cost in
optimal_breaks. The branch's seven new layout tests moved to layout/tests.rs.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Dylan M. Taylor
vangel76andClaude Sonnet 5.5
aiongg