_com_dimensions_using walked every entity of every layout and, since the
un-narrowing fix, re-dispatched each one through a dynamic proxy before
reading ObjectName (~8-10 ms per entity), which put dimstyle_modify past
the 60 s COM_CALL_TIMEOUT on a ~6k-entity drawing after its SetVariable +
CopyFrom had already landed. It is now a single
SelectionSet.Select(acSelectionSetAll, (0 . "DIMENSION") (3 . <style>)),
which answers from AutoCAD's own index whatever the drawing size.
Measured live (AutoCAD 2026, scratch doc, 1000 LINEs + 14 dimensions across
model and paper space): walk 12.7-15.8 s, selection 0.02-0.09 s, identical
handle sets; the whole dimstyle_modify tool now returns in 0.07 s.
The group-3 filter value is a wcmatch pattern, so the style name is
backtick-escaped (_wcmatch_literal): unescaped, "A.B" also selected the
dimensions of "A_B", "N#1" those of "N21", "P[1]" those of "P1", "S@X"
those of "SAX" (measured). Handles are returned in ascending handle order,
Select failures propagate, and the selection set is deleted either way.
tests/test_styles.py: the fake document carries a SelectionSets that
emulates ssget "X" over every layout with wcmatch-literal semantics and
narrowed IAcadEntity items, refusing an unescaped wildcard; three tests
cover no-per-entity-read, escaping, and cleanup-on-failure.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FKFStjEFzpGyLq5bMpWxTd
