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Print stdin hint when opencc reads interactively without -i - #1069
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…#1054) Agent-Logs-Url: https://github.com/BYVoid/OpenCC/sessions/c78e8d52-668f-4683-9439-af68780be669 Co-authored-by: frankslin <748873+frankslin@users.noreply.github.com>
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Without
-i,openccsilently blocks on stdin — indistinguishable from a hang for interactive users, especially on Windows.When stdin is a TTY, print a one-line hint to stderr before entering the read loop:
_isatty):Reading from standard input. Press Ctrl+Z then Enter to finish.isatty):Reading from standard input. Press Ctrl+D to finish.No behavioral change when stdin is a pipe or redirected file.