[NAME]
ALL.dao.type.string.pattern.change

[TITLE]
string.change()

[DESCRIPTION]


     
   1  string.change( pt :string, s :string, index=0, start=0, end=0 ) => int
     

Replace the substrings that match to pt with string s, which may contain reference to 
captured subtrings for groups, for example, if s = 'abc%1', it means replacing with a 
string which is a concatenation of abc and the substring that match to the first group 
of pt.

If index is positive, replace the index-th occurrence of the substring matching to pt. 
The substitution can also be restricted within a region starting from position start 
until position end.

The number of occurrence of substitution is returned.