[Regexp] Howto capture all matches of a single group

[ersin.er]

Hi,

Say, I have a regexp like (\d)(?:,(\d))* which recognizes inputs like
"1", "0,4", "9,2,0", etc. What I want is to get all captured strings
from group 3 (and also the one from group 1). When the operation has
finished group 3 has only the last captured text which is the last
digit for this case. However I want to get all digits matched by group
1 and 3.

This is stated in API doc as follows:

"The captured input associated with a group is always the subsequence
that the group most recently matched. If a group is evaluated a second
time because of quantification then its previously-captured value, if
any, will be retained if the second evaluation fails. Matching the
string "aba" against the expression (a(b)?)+, for example, leaves group
two set to "b". All captured input is discarded at the beginning of
each match."
(
http://java.sun.com/j2se/1.4.2/docs/api/java/util/regex/Pattern.html#cg
)

You may advise to use splitting but it does not work for more complex
examples where delimitors are also included in the subgroups several
times.

Any suggestions?

Thanks in advance.

-- Ersin

 

[Ersin Er]

In fact, .NET CaptureCollection is what I really want.

It's explained here:

http://msdn.microsoft.com/library/d...s/cpguide/html/cpconcomregularexpressions.asp

Isn't it possible for Java ?

 

[Ersin Er]

In fact, .NET CaptureCollection is what I really want.

It's explained here:

http://msdn.microsoft.com/library/d...s/cpguide/html/cpconcomregularexpressions.asp

Sorry, here:

http://msdn.microsoft.com/library/d...e/html/cpconusingregularexpressionclasses.asp

 

[HGA03630]

OP is confusing a sub-expression with an independant principal
expression.
MHO tells that this discussion thread should be aborted.