Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl: the Markov chain saw

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

You, sir, are a gentleman and a scholar.

This fine example of my stupidity will rank highly among its countless peers.


Just in case someone gets here looking for a working example, here it is:

use v5.14; use Regexp::Grammars; my $sentence = "Show me the money"; my $grammar = qr{ <nocontext:> <Sentence> <rule: Sentence> <VerbGroup> <NounGroup> <rule: VerbGroup> <Verb> <VPostfix>? <rule: Verb> <.Word> <rule: NounGroup> <NPrefix>? <Noun> <rule: Noun> <.Word> <rule: VPostfix> me | us | them <rule: NPrefix> a | an | the | some <rule: Word> \w+ }x; sub parse { my $s = shift; say "The sentence is: $s"; if ($s =~ $grammar) { use Data::Dumper; print Dumper \%/; } else { say "I did not understand you." } } parse ($sentence);

The result looks like this:

The sentence is: Show me the money $VAR1 = { 'Sentence' => { 'NounGroup' => { 'NPrefix' => 'the', 'Noun' => 'money' }, 'VerbGroup' => { 'Verb' => 'Show', 'VPostfix' => 'me' } } };

- Luke

In reply to Re^2: Parsing a sentence with Regexp::Grammars by blindluke
in thread Parsing a sentence with Regexp::Grammars by blindluke

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others wandering the Monastery: (7)
    As of 2020-09-23 10:12 GMT
    Find Nodes?
      Voting Booth?
      If at first I donít succeed, I Ö

      Results (130 votes). Check out past polls.