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Fix DEC special graphics lower-right corner#11

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jchristn wants to merge 1 commit into
tomlm:mainfrom
jchristn:fix/dec-special-graphics
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Fix DEC special graphics lower-right corner#11
jchristn wants to merge 1 commit into
tomlm:mainfrom
jchristn:fix/dec-special-graphics

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Summary

  • Correct the DEC Special Graphics mapping for j from top-left corner to lower-right corner.
  • Add a regression test that exercises the real ESC ( 0 parser path and verifies the corner, line, and ASCII-reset behavior.

Why

VT100/xterm DEC Special Graphics maps j to the lower-right box-drawing corner. XTerm.NET was mapping it to the top-left corner, so terminal applications that use DEC line drawing could render boxes with the wrong corner glyph.

Validation

  • dotnet test src\XTerm.NET.slnx
    • 585 passed, 0 failed
    • Existing warnings remain for EscapeSequenceParser.Dcs and Terminal.HyperlinkChanged.

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