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.IX Title "Test::BDD::Cucumber::Model::TagSpec 3pm"
.TH Test::BDD::Cucumber::Model::TagSpec 3pm "2014-06-21" "perl v5.14.2" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Test::BDD::Cucumber::Model::TagSpec \- Encapsulates tag selectors
.SH "VERSION"
.IX Header "VERSION"
version 0.26
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Try and deal with the crazy-sauce tagging mechanism in a sane
way.
.SH "OVERVIEW"
.IX Header "OVERVIEW"
Cucumber tags are all sortsa crazy. This appears to be a direct result of trying
to shoe-horn the syntax in to something you can use on the command line. Because
\&'Cucumber' is the name of a gem, application, language, methodology etc etc etc
look of disapproval.
.PP
Here is some further reading on how it's meant to work:
<https://github.com/cucumber/cucumber/wiki/Tags>. This is obviously a little
insane.
.PP
Here's how they work here, on a code level: You pass in a list of lists that
look like Lisp expressions, with a function: \f(CW\*(C`and\*(C'\fR, \f(CW\*(C`or\*(C'\fR, or \f(CW\*(C`not\*(C'\fR. You can
nest these to infinite complexity, but the parser is pretty inefficient, so
don't do that. The \f(CW\*(C`not\*(C'\fR function accepts only one argument.
.PP
\&\fIeg\fR:
.PP
\&\f(CW@important\fR \s-1AND\s0 \f(CW@billing:\fR \f(CW\*(C`[and =\*(C'\fR 'important', 'billing']>
.PP
(@billing \s-1OR\s0 \f(CW@WIP\fR) \s-1AND\s0 \f(CW@important:\fR \f(CW\*(C`[ and =\*(C'\fR [ or => 'billing', 'wip' ], 'important' ]>
.PP
Skipping both \f(CW@todo\fR and \f(CW@wip\fR tags: \f(CW\*(C`[ and =\*(C'\fR [ not => 'todo' ], [ not => 'wip' ] ]>
.SH "ATTRIBUTES"
.IX Header "ATTRIBUTES"
.SS "tags"
.IX Subsection "tags"
An arrayref representing a structure like the above.
.PP
.Vb 3
\& TagSet\->new({
\&        tags => [ and => \*(Aqgreen\*(Aq, \*(Aqblue\*(Aq, [ or => \*(Aqred\*(Aq, \*(Aqyellow\*(Aq ], [ not => \*(Aqwhite\*(Aq ] ]
\& })
.Ve
.SH "METHODS"
.IX Header "METHODS"
.SS "filter"
.IX Subsection "filter"
Filter a list of Scenarios by the value of \f(CW\*(C`tags\*(C'\fR
.PP
.Vb 1
\& my @matched = $tagset\->filter( @scenarios );
.Ve
.PP
If \f(CW\*(C`tags\*(C'\fR is empty, no filtering is done.