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Regex: Match 'Hello' but not 'Hello world'
Hi all,
Is it possible to 'look ahead' with regex?
For example, say I want to match 'hello':
e.g.
>I want to say hello to you - match
but not when it was followed by a specific word, say 'world':
e.g.
>hello, good morning - match
>My output is hello world - don't match
>hello and goodbye - match
My hazy recollection is that this is not possible to look ahead with a single line of regex - do I remember correctly?
Thanks in advance...
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