[Octave-bug-tracker] [bug #48883] regexp(rep): Matlab compatibility with empty match groups.

[Kai Torben Ohlhus]

URL:
  <http://savannah.gnu.org/bugs/?48883>

                 Summary: regexp(rep): Matlab compatibility with empty match
groups.
                 Project: GNU Octave
            Submitted by: siko1056
            Submitted on: Wed 24 Aug 2016 02:49:46 PM CEST
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: In Progress
             Assigned to: siko1056
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

    _______________________________________________________

Details:

I hope it is an easy one:

Matlab R2016a:

>> regexprep ('abc', '(^|a)(b)(c)', 'IN$2$3')
ans = INbc

>> regexprep ('bc', '(^|a)(b)(c)', 'IN$2$3')
ans = INbc

>> [~,~,~,a,b]=regexp ('bc', '(^|a)(b)(c)')
a = 'bc'
b = {1x3 cell}
>> b{:}

ans = ''    'b'    'c'


Octave:

>> regexprep ('abc', '(^|a)(b)(c)', 'IN$2$3')
ans = INbc

>> regexprep ('bc', '(^|a)(b)(c)', 'IN$2$3')
ans = INc

>> [~,~,~,a,b]=regexp ('bc', '(^|a)(b)(c)')
a =
{
  [1,1] = bc
}
b =
{
  [1,1] =
  {
    [1,1] = b
    [1,2] = c
  }
}





    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?48883>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/