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4.8.6 Pipe links
Pipe links provide acces to stdin and stdout of any program. Pipe links are bidirectional. Syntax:"|: " + string_for_system
The string_for system will be passed to system after conneting
the input and output to the corresponding stdout and stdin.
Example:
link l="|: date"; open(l); l; ==> // type : pipe ==> // mode : ==> // name : date ==> // open : yes ==> // read : not ready ==> // write: ready read(l); ==> Di 15. Dez 13:15:30 2015 l; ==> // type : pipe ==> // mode : ==> // name : date ==> // open : yes ==> // read : not ready ==> // write: ready close(l); |