[Octave-bug-tracker] [bug #33330] fgets hangs octave when reading newline

[Carnë Draug]

Follow-up Comment #4, bug #33330 (project octave):

Thanks. This will at least read the last selected value (instead of the one
before) but still hangs if the last selected value has already been read.

octave-3.2.3:26> fid = popen("zenity --scale --print-partial", "r");
## zenity scale dialog shows up
## move the  bar
octave-3.2.3:27> str = fscanf (fid, "%s", 'C')
str =27
octave-3.2.3:28> str = fscanf (fid, "%s", 'C')
## octave hangs. Does not return empty matrix
## move the bar
str = 46
## close dialog (press OK)
octave-3.2.3:29> str = fscanf (fid, "%s", 'C')
str = 46
## this is expected since the selected should be printed to the pipe again
after pressing OK


Thanks in advance

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