Bob Nystrom
2021e086bf
It's handy because it ensures writes are flushed to the terminal before any calls to read from stdin, but it's also gratuitously slow. Instead, added a Stdout class with an explicit flush() method that can be called by the user. Fix #445.
46 lines
1.2 KiB
Markdown
46 lines
1.2 KiB
Markdown
^title Stdin Class
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The standard input stream.
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## Static Methods
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### **isRaw**
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Returns `true` if stdin is in raw mode. When in raw mode, input is not echoed
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or buffered, and all characters, even non-printing and control characters go
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into stdin.
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Defaults to `false`.
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### **isRaw**=(value)
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Sets raw mode on or off.
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### **isTerminal**
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Returns `true` if Stdin is connected to a "TTY". This is true when the user is
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running Wren in an interactive terminal, and false if it its input is coming
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from a pipe.
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### **readByte**()
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Reads one byte of input from stdin. Blocks the current fiber until a byte has
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been received.
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Returns the byte value as a number or `null` if stdin is closed.
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Note that output is not automatically flushed when calling this. If you want to
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display a prompt before reading input, you'll want to call `Stdout.flush()`
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after printing the prompt.
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### **readLine**()
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Reads one line of input from stdin. Blocks the current fiber until a full line
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of input has been received.
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Returns the string of input or `null` if stdin is closed.
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Note that output is not automatically flushed when calling this. If you want to
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display a prompt before reading input, you'll want to call `Stdout.flush()`
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after printing the prompt.
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