Correcting contractions

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Hi friends, I've got a nice array of contractions (I've, I'd,
they'll,...). My intent is to take submitted data and replace, say,
every occurance of 'theyd' with 'they'd'. So far, so good. The trick
is doing it if the first character is uppercase. I tried going
throught the array, one by one, and doing the preg_replace twice, once
for each item, and once for each item with the first letter
capitalized. It wasn't very succesful, so I've been doing this:
$the_lyrics=str_replace("\bid\b", "I'd", $the_lyrics);
$the_lyrics=str_replace("\bi'd\b", "I'd", $the_lyrics);
$the_lyrics=str_replace("\bId\b", "I'd", $the_lyrics);
$the_lyrics=str_replace("\bim\b", "I'm", $the_lyrics);
$the_lyrics=str_replace("\bi'm\b", "I'm", $the_lyrics);
$the_lyrics=str_replace("\bIm\b", "I'm", $the_lyrics);
$the_lyrics=str_replace("\bi've\b", "I've", $the_lyrics);
$the_lyrics=str_replace("\bive\b", "I've", $the_lyrics);
$the_lyrics=str_replace("\bIve\b", "I've", $the_lyrics);
$the_lyrics=str_replace("\bi'll\b", "I'll", $the_lyrics);
$the_lyrics=str_replace("\bIll\b", "I'll", $the_lyrics);
$the_lyrics=str_replace("\bi\b", "I", $the_lyrics);
$the_lyrics=str_replace("\byoure\b", "you're", $the_lyrics);
$the_lyrics=str_replace("\bYoure\b", "You're", $the_lyrics);
$the_lyrics=str_replace("\byoull\b", "you'll", $the_lyrics);
$the_lyrics=str_replace("\bYoull\b", "You'll", $the_lyrics);
$the_lyrics=str_replace("\byouve\b", "you've", $the_lyrics);
$the_lyrics=str_replace("\bYouve\b", "You've", $the_lyrics);
$the_lyrics=str_replace("\bits\b", "it's", $the_lyrics);
$the_lyrics=str_replace("\bIts\b", "It's", $the_lyrics);
$the_lyrics=str_replace("\bwasnt\b", "wasn't", $the_lyrics);
$the_lyrics=str_replace("\bWasnt\b", "Wasn't", $the_lyrics);
$the_lyrics=str_replace("\bthats\b", "that's", $the_lyrics);
$the_lyrics=str_replace("\bThats\b", "That's", $the_lyrics);
$the_lyrics=str_replace("\btheyre\b", "they're", $the_lyrics);
$the_lyrics=str_replace("\bTheyre\b", "They're", $the_lyrics);
$the_lyrics=str_replace("\btheyll\b", "they'll", $the_lyrics);
$the_lyrics=str_replace("\bTheyll\b", "They'll", $the_lyrics);
$the_lyrics=str_replace("\bcant\b", "can't", $the_lyrics);
$the_lyrics=str_replace("\bCant\b", "Can't", $the_lyrics);
$the_lyrics=str_replace("\bdidnt\b", "didn't", $the_lyrics);
$the_lyrics=str_replace("\bDidnt\b", "Didn't", $the_lyrics);
$the_lyrics=str_replace("\bdont\b", "don't", $the_lyrics);
$the_lyrics=str_replace("\bDont\b", "Don't", $the_lyrics);
$the_lyrics=str_replace("\bdoesnt\b", "doesn't", $the_lyrics);
$the_lyrics=str_replace("\bDoesnt\b", "Doesn't", $the_lyrics);
$the_lyrics=str_replace("\bweve\b", "we've", $the_lyrics);
$the_lyrics=str_replace("\bWeve\b", "We've", $the_lyrics);

Which, as you can see, is not exactly optimized code. How would
someone more professional than myself go about this? I was thinking
about maybe a two-dimentional array, but stopped short to consult with
you guys first.

Dotan
http://lyricslist.com/lyrics/artist_albums/19/adams_bryan.php
Bryan Adams Lyrics

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