Created
September 13, 2016 13:03
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| #!/usr/bin/env perl6 | |
| # parse a little slim (<http://slim-lang.com>) | |
| grammar slim { | |
| rule TOP { <line>+ %% <eol>} | |
| token line { <indentation> <tag> [ ' ' <text> ]? } | |
| token indentation { <indent>* } | |
| token indent { ' ' } | |
| token tag { \w+ } | |
| token text { \V+ } | |
| token eol { \n+ } | |
| } | |
| class slim-actions { | |
| my @stack; | |
| method TOP($/) { | |
| while my $tag = @stack.pop { | |
| say (" " x @stack ) ~ "</$tag>"; | |
| } | |
| } | |
| method line($/) { | |
| push @stack, ~$<tag>; | |
| say (" " x @stack-1 ) ~ "<" ~ $<tag> ~ ">"; | |
| say (" " x @stack-1 ) ~ $<text> if $<text>; | |
| } | |
| method indentation($/) { | |
| my $level = @$<indent>; | |
| for 1..(@stack - $level) { | |
| my $tag = pop @stack; | |
| say (" " x @stack) ~ "</$tag>"; | |
| } | |
| } | |
| } | |
| slim.parse(q:to/DONE/,actions => slim-actions.new) or die 'no parse'; | |
| html | |
| head | |
| title Slim Examples | |
| body | |
| h1 Markup Examples | |
| DONE |
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