Compiler/lexical analyzer: Difference between revisions
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Thundergnat (talk | contribs) →{{header|Perl 6}}: avoid unnecessary reparsing |
Thundergnat (talk | contribs) m →{{header|Perl 6}}: minor cleanup |
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This is more complicated than strictly necessary for this task. It is set up to be easily adapted to do syntax analysis. |
This is more complicated than strictly necessary for this task. It is set up to be easily adapted to do syntax analysis. |
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(Note: there are several bogus comments added |
(Note: there are several bogus comments added solely to help with syntax highlighting.) |
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{{works with|Rakudo|2016.08}} |
{{works with|Rakudo|2016.08}} |
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my $l; |
my $l; |
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my @pos = gather for $c_code.lines».chars.kv -> $line, $v { |
my @pos = gather for $c_code.lines».chars.kv -> $line, $v { |
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take [ $line + 1, $_ ] for 1 .. ($v+1); # v for newline |
take [ $line + 1, $_ ] for 1 .. ($v+1); # v+1 for newline |
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$l = $line+2; |
$l = $line+2; |
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} |
} |
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for flat $c_code<tokens>.list, $c_code<eoi> -> $m { |
for flat $c_code<tokens>.list, $c_code<eoi> -> $m { |
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say join "\t", @pos[$m.from].fmt('%3d'), $m.ast |
say join "\t", @pos[$m.from].fmt('%3d'), $m.ast; |
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} |
} |
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} |
} |
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