[Octave-bug-tracker] [bug #56927] textscan format '%q' does not produce Matlab-compatible results for corner case where pattern fails

[Rik]

URL:
  <https://savannah.gnu.org/bugs/?56927>

                 Summary: textscan format '%q' does not produce
Matlab-compatible results for corner case where pattern fails 
                 Project: GNU Octave
            Submitted by: rik5
            Submitted on: Fri 20 Sep 2019 11:58:40 AM PDT
                Category: Octave Function
                Severity: 2 - Minor
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: Confirmed
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

Sample code to reporduce


textscan ('"a,b","c"trailing', '%q', 'delimiter', ',')
ans =
{
  [1,1] =
  {
    [1,1] = a,b
    [2,1] = c
    [3,1] = trailing
  }

}


In Matlab, there are only two outputs, not three, and the second output is
"ctrailing".  In other words, the section of text not matching the pattern,
but occurring before a delimiter, is appended to the last format match.

This is an obscure corner case and I am merely noting it, rather than
suggesting it get fixed.





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