• via Digitalmars-d-bugs (23/23) Aug 29 2016 https://issues.dlang.org/show_bug.cgi?id=16446

via Digitalmars-d-bugs <digitalmars-d-bugs puremagic.com> writes:

https://issues.dlang.org/show_bug.cgi?id=16446

          Issue ID: 16446
           Summary: Captures does not expose named captures for iteration
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: phobos
          Assignee: nobody puremagic.com
          Reporter: justin economicmodeling.com

The Captures struct maintains an internal list of named subexpressions in
_names but it is private and the public API offers no way to discover which
named subexpressions exist, only indexing when the subexpression's name is
already known.  Ideal usage scenario would look like this:

string sample = "ABCDEFG";
auto re = regex( getExpressionFromuser() );
auto captures = sample.matchFirst(re);

foreach (string name, string hit; captures.namedSubExpressions)
    writeln(name, ": ", hit);

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