Simple regular expression to find word in a string?

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  1. #1
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    Simple regular expression to find word in a string?

    Hey,

    I have assignment to do for class and the beginning part is to design a regular expression as follows:

    Over the alphabet Σ of ASCII characters, define a Regular Expression that describes a search for the string “coconut”. You can use the expression Σ* to denote an arbitrary sequence of characters in Σ.

    This makes me think its appropriate to do E*(coconut)E*. Any arbitrary characters, followed by "coconut", followed by any arbitrary characters? Am I totally missing something or is this correct?

    Thanks for any advice.

    BC

  2. #2
    and the Hat of Guessing tabstop's Avatar
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    Looks like a plan to me. You can try to make it less readable, I suppose. And it might be based on the "format" you use for regexes; do you necessarily need the Σ*?

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