Bob Nystrom
4f8a5384ea
Add a check for feof(stdin) after fgets in the REPL input loop in src/main.c. When the user presses Ctrl-D, stdin is closed and fgets returns NULL without reading input. The new code detects this condition, prints a newline for clean terminal output, and returns 0 to exit the REPL gracefully instead of continuing with an empty or uninitialized line buffer. This resolves issue #6 where Ctrl-D caused undefined behavior or an infinite loop.