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5 Commits
Author SHA1 Message Date
jpmschweitzerandClaude Fable 5 c3dd1d3e3f capture CSI intermediate bytes; stop bare-final mis-dispatch (T-123) 
_consumeCsi silently discarded intermediate bytes (0x20-0x2f), so an
intermediate-bearing sequence dispatched on its bare final byte —
`CSI 5 SP @` (VT420 scroll-left) ran as "insert 5 blank characters",
and `CSI Ps SP q` (DECSCUSR) could collide with any future bare-q
handler. The parser now records intermediates on the CSI scratch
object and routes any sequence carrying them to unknownCSI, since no
intermediate form is implemented yet.

Implementing DECSCUSR itself (cursor shape + renderer support) is
filed as T-397.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
 2026-06-12 02:55:58 +02:00
jpmschweitzerandClaude Fable 5 0e7353bf9c run dart format over the dragon-fix files 
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
 2026-06-12 00:58:37 +02:00
jpmschweitzerandClaude Fable 5 34821fbc39 guard SGR 38/48 lookahead; parse colon sub-parameters (T-369) 
printf '\e[38m' was a RangeError inside Terminal.write — the
extended-color branches indexed params[i+1..i+4] unguarded. An
emulator must never throw on hostile bytes. Both branches now share a
bounds-checked helper that ignores truncated sequences.

Colons were silently dropped mid-CSI, fusing 38:2:255:0:0 into one
bogus parameter; the consumer now records ECMA-48 sub-parameter
links, so ITU T.416 colon-form truecolor/256-color (with or without
the colorspace slot) parses identically to the semicolon form, and a
malformed colon group is dropped whole instead of bleeding into
neighbouring SGR codes.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
 2026-06-12 00:30:41 +02:00
jpmschweitzerandClaude Opus 4.8 6d0ebab721 chore: adopt Dart 3.9 toolchain — honest floor + tall-style reformat (T-353) 
Raise the declared minimums in pubspec.yaml to what our deps already
require: Flutter >=3.35.0 / Dart >=3.9.0 (was 3.19.0 / 3.5.0). alchemist
0.12 needs Flutter 3.32; Dart 3.9 first ships in Flutter 3.35, so 3.35 is
the binding floor. Pin the exact build toolchain in .fvmrc (Flutter
3.44.1).

Moving to the Dart 3.9 language level switches `dart format` to the new
"tall" style and enables two new lints. This commit is the resulting
mechanical churn, isolated from any behaviour change:
  - whole-tree `dart format` reformat (tall style)
  - `dart fix` for unnecessary_underscores + use_null_aware_elements

No runtime behaviour change; `make test` green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
 2026-06-11 12:11:53 +02:00
jpmschweitzerandClaude 9331055b44 test sweep: cover EscapeParser + EscapeEmitter (T-91) 
Adds test/terminal/escape/parser_test.dart — 70 unit tests covering
the parser's dispatch surface end-to-end:

- single-byte controls (BEL, BS, HT, LF/VT/FF, CR, SO, SI),
- ESC sequences (D, E, H, M, =, >, 7, 8, ( name, ) name, unknown),
- CSI cursor moves (A/B/C/D/E/F/G/H/d/f) with default + 0-as-1
  fallback semantics,
- erase / scroll / line-insert/delete / chars (J, K, L, M, P, S, T,
  X, @, b, g, r),
- device attributes (c / >c / =c) and DSR (5, 6),
- window manipulation (CSI 8 t resize, CSI 18 t sendSize, ignored
  no-op codes, malformed CSI 8 t),
- mode set/reset (h/l, ? prefix for DEC modes — covering ?1, ?3,
  ?5, ?6, ?7, ?9, ?12, ?25, ?47, ?66, ?1000, ?1002, ?1003, ?1004,
  ?1005, ?1006, ?1007, ?1015, ?1047, ?1048, ?1049, ?2004, +
  unknown fallback),
- SGR styling (resets, set/unset for every attr, 16-colour
  foreground + background, 256-colour, 24-bit RGB, 39 / 49
  resets, unknown → unsupportedStyle),
- OSC 0/1/2 (BEL- and ST-terminated), unknown OSC, incomplete
  sequence held back across writes,
- unknown CSI final byte → unknownCSI,
- token bookkeeping (tokenBegin / tokenEnd advance with consumed
  bytes).

Plus EscapeEmitter — every reply string format (primary /
secondary / tertiary device attributes, operating status, cursor
position, bracketed paste, size).

Coverage delta:
- parser.dart: 0 / 462 → 504 / 514 (98.1%; the remaining 10 lines
  sit inside the `// ignore: dead_code` SGR loop, which I'm
  surfacing for separate review rather than extending tests
  around).
- emitter.dart: 1 / 11 → 11 / 11.
- Total project: 43.20% → 49.38%; coverage_floor bumped 43 → 49.

Two real source-code issues found while writing tests, fixed in
the same commit:

1. Swapped docstrings on `_escHandleSetAppKeypadMode` /
   `_escHandleResetAppKeypadMode`. The function names + dispatch
   table + bodies all match the VT spec correctly (ESC = enables,
   ESC > disables); only the doc-comments were swapped. Now read
   the right way around.
2. `case 10061000:` in `_setDecMode` was unreachable (no DEC mode
   has that value). Almost certainly a typo where `case 1006:`
   meant to glue onto `case 1000:` but a newline went missing.
   Mode 1006 is already handled separately at its own clause as
   `MouseReportMode.sgr`. Removed.

Co-Authored-By: Claude <noreply@anthropic.com>
 2026-05-06 23:24:12 +02:00