Readline interface: Difference between revisions
Content added Content deleted
(Add a demonstration of python's readline capabilities) |
(Added Wren) |
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say "You inserted <<#{cmd}>>" |
say "You inserted <<#{cmd}>>" |
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}</lang> |
}</lang> |
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=={{header|Wren}}== |
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{{trans|Go}} |
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<lang ecmascript>import "io" for Stdin, Stdout |
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class ReadLine { |
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static start { |
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__hist = [] |
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System.print("Enter a command, type help for a listing.") |
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while (true) { |
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System.write(">") |
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Stdout.flush() |
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var cmd = Stdin.readLine().trim() |
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if (cmd == "exit") { |
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return |
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} else if (cmd == "hello") { |
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hello_ |
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} else if (cmd == "hist") { |
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hist_ |
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} else if (cmd == "help") { |
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help_ |
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} else { |
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System.print("Unknown command, try again") |
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} |
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} |
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} |
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static hello_ { |
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System.print("Hello World!") |
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__hist.add("hello") |
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} |
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static hist_ { |
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if (__hist.count == 0) { |
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System.print("No history") |
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} else { |
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for (cmd in __hist) System.print(" - %(cmd)") |
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} |
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__hist.add("hist") |
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} |
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static help_ { |
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System.print("Available commands:") |
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System.print(" hello") |
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System.print(" hist") |
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System.print(" exit") |
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System.print(" help") |
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__hist.add("help") |
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} |
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} |
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ReadLine.start</lang> |
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{{out}} |
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Sample session (as Go): |
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<pre> |
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Enter a command, type help for a listing. |
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>hit |
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Unknown command, try again |
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>hist |
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No history |
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>help |
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Available commands: |
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hello |
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hist |
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exit |
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help |
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>hello |
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Hello World! |
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>hist |
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- hist |
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- help |
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- hello |
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>exit |
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</pre> |
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