Cormac Shannon af8300aa40 Make Ctrl-C clear line and re-prompt in REPL instead of exiting ...

Use sigsetjmp/siglongjmp to catch SIGINT during readline/fgets input
and jump back to the REPL loop with a fresh prompt. Running Lua code
still gets interrupted via the existing laction/lstop mechanism.

Fixes #11.

2026-02-28 23:35:30 +00:00

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