Finding words strictly starting with $, Regex C#

Posted by Anirudh Goel on Stack Overflow See other posts from Stack Overflow or by Anirudh Goel
Published on 2009-03-05T15:51:07Z Indexed on 2010/05/13 20:14 UTC
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regex

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c#

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word

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word-boundary

I need to find all matches of word which strictly begins with "$" and contains only digits. So I wrote

[$]\d+

which gave me 4 matches for

$10 $10 $20a a$20

so I thought of using word boundaries using \b:

[$]\d+\b

But it again matched

a$20 for me.

I tried

\b[$]\d+\b

but I failed.

I'm looking for saying, ACCEPT ONLY IF THE WORD STARTS WITH $ and is followed by DIGITS. How do I tell IT STARTS WITH $, because I think \b is making it assume word boundaries which means surrounded inside alphanumeric characters.

What is the solution?

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