Algorithm for analyzing text of words

Posted by Click Upvote on Stack Overflow See other posts from Stack Overflow or by Click Upvote
Published on 2009-05-09T09:37:29Z Indexed on 2010/05/23 3:50 UTC
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I want an algorithm which would create all possible phrases in a block of text. For example, in the text:

"My username is click upvote. I have 4k rep on stackoverflow"

It would create the following combinations:

"My username"
"My Username is"
"username is click"
"is click"
"is click upvote"
"click upvote"
"i have"
"i have 4k"
"have 4k"
..

You get the idea. Basically the point is to get all possible combinations of 'phrases' out of a sentence. Any thoughts for how to best implement this?

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