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>
jpmschweitzerandClaude Fable 5
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