Old lady swallowed a fly

From Rosetta Code
Revision as of 05:38, 17 August 2011 by rosettacode>Ledrug (→‎{{header|C}}: shorter yet)

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[] = { "\x5""fly,\x6\xd\x1\xa,/That wr\xb""and w\xb" "and t\xbinside her;\x3\xa\x10\xd\x8 //\x5\x11;/" "How absurd\xc\x11.\x2\xd\x1""cat;/Fancy that,\xc" "cat!\x9 \x1""dog;/What a hog,\xc""dog;\xe" "cow,\x6w how she\x7\xf""cow;\x3""cow\x4""dog," "\xehorse.../She's dead, of course!/",

"\x8//\x5", "\x3\x11\x4\xa,\x3\xa\x10", "/She\x7""ed the ", " to catch the ", "There was an old lady who\x7\xf", "/I don't kno", " swallow", " she\x7\xf""fly - Perhaps she'll die!", "\x3""cat\x4\x11,\x2\xd", "spider", "iggled ", " to\x7 a ", "w why", "\x3""dog\x4""cat,\x9\x1", "ed a ", "\x4""fly;\x6", "bird", };

void writeout(char *s) { do { if (*s < 32) writeout(dict[(int)*s]); else putchar(*s == '/' ? '\n' : *s); } while (*++s); }

int main() { writeout(dict[0]); return 0; }</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>