Re: Pattern Matching

[Georg Bauhaus <sb463ba@d2-hrz.uni-duisburg.de>]

bmsv <temp2@dagi3d.net> wrote:
: This an example string I have:
: city[hotel1,hotel2,hotel3]{restaurant1, restaurant2}
: the line could also look like this:
: city{restaurant1, restaurant2}[hotel1,hotel2,hotel3]

What I would do is:
Use Regpat to extract the groups, that is,
city                    	match(1).first .. match(1).last
restaurant1, restaurant2	match(2).first .. match(2).last
hotel1,hotel2,hotel3       	etc.

For this, a Match_Array object of Parent_Count length will
suffice. (You can use three groups in an alternative
reflecting the order of {} and [], or a pattern involving
[{[]([^]}]*)[]}], if input is wellformed, or similar.)

Then, split the groups into data structures of your choice,
eg sets.

Using Find_Token and related subprograms from Ada.Strings.Fixed
might be an alternative.

just my 2c
-- Georg