Thanks for clarifying however I'm still unsure what a Perl 6 user should expect to get back from running $string.match(/pat/). This is the ""one high-level call to the .match method" yes? So it should be returning a List of Str (or List of Match in case of capture groups), is this correct? I ask because in the current Rakudo implementation it returns the Match object (what I would expect from the "one low-level run of the regex engine").
Best Regards, -Chris On Thu, Sep 18, 2008 at 11:52 PM, Larry Wall <[EMAIL PROTECTED]> wrote: > On Thu, Sep 18, 2008 at 06:11:45PM +0800, Chris Davaz wrote: > : I'm trying to pin down what $string.match(/pat/) should be returning. > : > : >From S05: > : > : Under "Return values from match objects" > : "A match always returns a Match object..." > : > : >From S29: > : > : Under the definition of Str.comb > : > : Saying > : > : $string.comb(/pat/, $n) > : > : is equivalent to > : > : $string.match(rx:global:x(0..$n):c/pat/) > : > : [ ...and later... ] > : > : "If there are captures in the pattern, a list of Match objects (one > : per match) is returned instead of strings." > : > : Which implies that $string.match(/pat/) should indeed return a List of > : Str and $string.match(/pat_with_groups/) should return a List of > : Match. > : > : I expected the S29 definition when first approaching $string.match I > : feel it is more intuitive than what happens with S05. Could someone > : clarify what the behavior should be? > > S05 is using a different definition of "match". In S05 it means > more like "one low-level run of the regex engine" rather than "one > high-level call to the .match method". In other words, the .match > method can do multiple matches. > > Larry >
