[Octave-bug-tracker] [bug #60157] save() expressive filtering when using brackets [ ] does not appear to work.

[N Kando]

URL:
  <https://savannah.gnu.org/bugs/?60157>

                 Summary: save() expressive filtering when using brackets [ ]
does not appear to work.
                 Project: GNU Octave
            Submitted by: itskando
            Submitted on: Tue 02 Mar 2021 08:16:49 PM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error or Warning
                  Status: None
             Assigned to: None
         Originator Name: itskando
        Originator Email: 
             Open/Closed: Open
                 Release: 6.1.0
         Discussion Lock: Any
        Operating System: Any

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Details:

The help documentation regarding save() includes the following:


     '[ LIST ]'
          Match the list of characters specified by LIST.  If the first
          character is '!' or '^', match all characters except those
          specified by LIST.  For example, the pattern '[a-zA-Z]' will
          match all lower and uppercase alphabetic characters.

          Wildcards may also be used in the field name specifications
          when using the '-struct' modifier (but not in the struct name
          itself).


What is the syntax of LIST? Is it possible to exclude certain patterns? I was
not able to make the 'except' characters work:


>> clear
>> 1
ans = 1
>> save('trash.txt','a*')
>>
>> save('trash.txt','a')
warning: save: no such variable 'a'
>> save('trash.txt','[a]')
warning: save: no such variable '[a]'
>> save('trash.txt','[!a*]')
warning: save: no such variable '[!a*]'
>> save('trash.txt','[!b*]')
warning: save: no such variable '[!b*]'
>> save('trash.txt','![b]')
warning: save: no such variable '![b]'
>> save('trash.txt','!b')
warning: save: no such variable '!b'





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