Looks like a perfect job for Parse::RecDescent or its heir apparent, Perl6::Rules. Using today's technology, the PRD grammar would be something like: 
stuff: nl_list | un_list | tl_list | utl_list | items
nl_list: m{<nl>} stuff m{</nl>} { "<list type='numbered'>$item{stuff}<
+/list>" }
... ditto for the other three lists
items: item(s) { join "", @{$item[1]} }
item: /\w+/ { "<listitem>$item[1]</listitem>" }

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-- Randal L. Schwartz, Perl hacker
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In reply to •Re: Recursive lists by merlyn
in thread Recursive lists by murugu

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