ParameterizationPreview.tokenize() matched highlight values via raw
seg.text.startsWith(value, cursor) with no word-boundary check and no
minimum length. A param value like "D" (e.g. a drive letter) lit up every
capital D in the script body — Get-ADUser, Add-Type, Disable- all rendered
as proposed-parameter pills.
Add a word-boundary guard: a candidate match is only accepted if either
side of the match either falls at start/end of the segment, OR the
adjacent character is non-alphanumeric. The guard is conditional on
whether the value itself starts/ends with a word char, so values that
begin or end in punctuation (e.g. "D:\\Folder") still match cleanly when
they sit next to whitespace or punctuation.
Surfaced 2026-05-01 while testing the suggested-fix flow with a real
PowerShell script.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Michael Chihlas
8b0358af3b