Eremey Valetov ba655fedbb Add inline Sixel graphics, INPUT stdin support, Pygments lexer to kernel ...

Sixel graphics: pure-Python decoder extracts ESC P...ESC \ sequences from
the output stream, renders RGBA pixels, and encodes as PNG for inline
display in the notebook. No external dependencies (no PIL, no Ghostscript).

INPUT support: when gwbasic prints "? " (INPUT prompt), the kernel uses
the Jupyter stdin protocol (raw_input) to request input from the user and
feeds the response back to the subprocess.

Pygments lexer (basic_lexer.py): GW-BASIC syntax highlighting with line
numbers, keywords, builtins, string/number literals, and comments.
Registered as a Pygments entry point and referenced in kernel language_info.

Test suite expanded from 10 to 14 tests (Sixel decode, PNG encode, inline
graphics integration, lexer tokenization).

2026-03-29 06:03:50 -04:00

778 B

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