The way used in Coral (stty -icanon -echo) doesn't work. The stdin next is still blocking the image. It seems that it must be solved on the VM level somehow :-/ -- Pavel On Tue, Nov 13, 2012 at 10:56 AM, Camillo Bruni <camillobruni@gmail.com> wrote:
hmm we solved that by changing the behavior of stdin before launching the vm. so you get character by character input, otherwise stdin is only flushed on lf...
see the starter script from coral.
On 2012-11-13, at 10:01, Pavel Krivanek <pavel.krivanek@gmail.com> wrote:
Hi,
is there a way how to use nonblocking input from stdin? I have a simple REPL but the stdin is blocking the VM.
| stdin input lineEnd |
stdin := FileStream stdin ifNil: [ ^ self ]. stdin atEnd ifTrue: [ ^ self ].
[ lineEnd := false. FileStream stdout nextPutAll: '> '. input := String streamContents: [:s| [ stdin atEnd or: [lineEnd] ] whileFalse: [ stdin next ifNotNilDo: [:char| char = Character lf ifTrue: [lineEnd := true]. s nextPut: char ]]].
[ FileStream stdout print: (Compiler evaluate: input); lf ] ifError: [:error | FileStream stdout nextPutAll: 'ERROR: ', error asString; lf].
Processor yield. ] repeat
Cheers, -- Pavel