Old lady swallowed a fly: Difference between revisions

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'Cow'N'I don''t know how'
'Cow'N'I don''t know how'
'Donkey'N'It was rather wonky'
'Donkey'N'It was rather wonky'
O'Horse'
'cow'N'I don''t know how'
O'horse'
E'She''s dead, of course!'</lang>
E'She''s dead, of course!'</lang>



Revision as of 21:31, 17 August 2011

Present a program which emits the lyrics to the song I Knew an Old Lady Who Swallowed a Fly, taking advantage of the repetitive structure of the song's lyrics.

Old lady swallowed a fly is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.

C

Boring, ad hoc dictionary based decompression. The encoder was arguably more interesting, though. <lang c>#include <stdio.h>

char *dict[] = { "_fa fly,_c _m,/That wr_kand w_kand t_kinside her;_`_n;/" "How absurd_g_n!_h`cat;/Fancy that_gcat!_ddog;/What a" " hog_gdog!_jcow,_ihow s_la cow;_acow_bdog,_jhorse.../" "She's dead, of course!/", "_a_m_bfly;_c ", "/S_lthe ", " to catch the ", "_iwhy s_la fly - Perhaps she'll die!//_fa", "_acat_b_n,_h`", " swallow", "There was an old lady who_eed ", ", to_e a ", "_a_n_b_m,_", "/I don't know ", "_adog_bcat,_d", "iggled ", "he_eed ", "spider", "bird", };

int print(char *c, int s) { do { if (s) s = print(dict[*c - 95], 0); else if (*c == '_') s = 1; else putchar(*c == '/' ? '\n' : *c); } while (*++c); return s; }

int main() { print(dict[0], 0); return 0; }</lang>

J

This defines T to be the required text.

<lang j>T=: e=:3 :'T=:T,y,LF' E=:e@,&'.' O=:'I know an old lady who swallowed a 'E@,] I=:e bind('I dont know why she swallowed the fly.',LF,'Perhaps shell die.',LF) I O 'fly' O P=:'spider' E 'That wriggled and jiggled and tickled inside her' I E A=:'She swallowed the spider to catch the fly' N=:4 :0

 O x
 E y,'. To swallow a ',x
 I E A=:'She swallowed the ',x,' to catch the ',P,'.',LF,A
 P=:x

) 'Bird'N'Quite absurd' 'Cat'N'Fancy that' 'Dog'N'What a hog' 'Pig'N'Her mouth was so big' 'Goat'N'She just opened her throat' 'Cow'N'I dont know how' 'Donkey'N'It was rather wonky' O'Horse' E'Shes dead, of course!'</lang>

PHP

This example is incorrect. Please fix the code and remove this message.

Details: The program does not produce the correct lyrics. (See talk page)

<lang php><?php

$swallowed = array(

 array('swallowed' => 'fly.',
       'reason' => "I don't know why she swallowed the fly."),
 array('swallowed' => 'spider,',
       'aside' => "which wiggled and jiggled and tickled inside her.",
       'reason' => "She swallowed the spider to catch the fly"),
 array('swallowed' => 'bird.',
       'aside' => "How absurd! To swallow a bird!",
       'reason' => "She swallowed the bird to catch the spider,"),
 array('swallowed' => 'cat.',
       'aside' => "Imagine that! To swallow a cat!",
       'reason' => "She swallowed the cat to catch the bird."),
 array('swallowed' => 'dog.',
       'aside' => "What a hog! To swallow a dog!",
       'reason' => "She swallowed the dog to catch the cat."),
 array('swallowed' => 'horse',
       'aside' => "She's dead, of course. She swallowed a horse!",
       'reason' => "She swallowed the horse to catch the dog."));

foreach($swallowed as $creature) {

 print "I knew an old lady who swallowed a " . $creature['swallowed'] . "\n";
 if(array_key_exists('aside', $creature))
   print $creature['aside'] . "\n";
 $reversed = array_reverse($swallowed);
 $history = array_slice($reversed, array_search($creature, $reversed));
 foreach($history as $note)
 {
   print $note['reason'] . "\n";
 }
 if($swallowed[count($swallowed) - 1] == $creature)
   print "But she sure died!\n";
 else
   print "Perhaps she'll die." . "\n\n";

}</lang>