parser.dart (1139 LOC) now keeps only the core — byte queue, dispatch
tables, ESC/CSI consumers — at 373 LOC. The handler groups move to
mixins in part files of the same library, so every private member
stays library-scoped and no public surface is added:
- csi_handlers.dart — cursor/erase/scroll ops, DA/DSR, margins, tab
clear, repeat, window manipulation
- sgr_handlers.dart — SGR incl. the guarded 38/48 extended-color path
(T-369)
- mode_handlers.dart — ANSI + DEC private mode set/reset
- osc_handlers.dart — OSC string parsing + dispatch
An abstract _EscapeParserBase carries the shared state (handler sink,
queue, token bookkeeping, the reusable _Csi scratch) the mixins are
`on`. All 76 parser tests (and the rest of the terminal suite) pass
unchanged.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
jpmschweitzerandClaude Fable 5
f8958fd372