View source for Std print a

{{DISPLAYTITLE:std_print_a}}

===std_print_a -- plugin method used in "List.pm" type objects===

'''Description'''

<blockquote> This is an example of a subroutine ( i.e. a subroutine whose first argument is a reference to a parent object ) which defines how the list of answers is printed from a [/docs/docs/pglanguage/pod/list.html List.pm] object. </blockquote>

'''Syntax'''

<blockquote> std_print_a( $self, @array)</blockquote>

'''Params'''

<blockquote> $self is a reference to the parent list object and can be used to reference preferences stored there.<br /> @array is the list of answers to be displayed.</blockquote>

'''Action'''

<blockquote> For this example the answers are listed in vertically in an ordered list, indexed by capital letters beginning with "A"</blockquote>

'''Returns'''

<blockquote> A string, containing the answers, properly formatted.</blockquote>

'''Examples'''

<blockquote><code><br /> $ml = new_match_list();<br /> $ml-&gt;rf_print_a(~~&amp;std_print_a); # set the answer format for this list object to use the std_print_a subroutine<br /> # enter three questions and their answers<br /> $ml-&gt;qa( "What color is a rose?", <br /> "Red",<br /> "What color is the sky?",<br /> "Blue",<br /> "What color is the sea?",<br /> "Green"<br /> );<br /> # choose two of these questions, ordered at random, <br /> # which will be printed in the problem.<br /> $ml-&gt;choose(2); <br /> BEGIN_TEXT<blockquote> Match the answers below with these questions:$BR <br /> \{$ml-&gt;print_q\} Print the questions$BR<br /> Answers:<br /> \{$ml-&gt;print_a \} Print the answers </blockquote><br /> END_TEXT<br /><br /> ANS( $ml-&gt;ra_correct_ans() ); #submit the correct answers<br /></code></blockquote>

'''Notes'''

<blockquote> Defined in [PGchoicemacros.pl]</blockquote>

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