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Bob Levittan (VIP)
I'm trying to come up with a regex that matches a dollar amount, i.e.

$12.00 or $1.50 but not $1.234

\$[0-9]+(\.[0-9][0-9])?

works up to a point, but it matches more than 2 decimal digits. I want it to
fail if there are more than 2, so I figured that \b word boundary would
work.

\b\$[0-9]+(\.[0-9][0-9])?\b

but it doesn't. If I remove the \$ it works as I excpect, but the escaped
dollar seems to put it out of whack. Any suggestions?

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Kevin Collins
did you try it w/out the first \b ?

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Remas Wojciechowski
Bob,

how about you use a negative lookahead, i.e. find all matches that have
two digits after which there is not another digit:
[0-9][0-9](?![0-9])
[0-9][0-9] could be also written as [0-9]{2}

hth,
Remas
http://www.aspalliance.com/remas/

--- Bob Levittan <Click here to reveal e-mail address> wrote:
[Original message clipped]

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Remas Wojciechowski
http://www.aspalliance.com/remas/

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Bob Levittan (VIP)
But then $12.23XYZ would match, as X is not a digit.

----Original Message Follows----
From: Remas Wojciechowski <Click here to reveal e-mail address>
Reply-To: "aspngregexp" <Click here to reveal e-mail address>
To: "aspngregexp" <Click here to reveal e-mail address>
Subject: [aspngregexp] Re: Word boundaries
Date: Wed, 18 Jul 2001 08:36:25 -0700 (PDT)

Bob,

how about you use a negative lookahead, i.e. find all matches that have
two digits after which there is not another digit:
[0-9][0-9](?![0-9])
[0-9][0-9] could be also written as [0-9]{2}

hth,
Remas
http://www.aspalliance.com/remas/

--- Bob Levittan <Click here to reveal e-mail address> wrote:
[Original message clipped]

=====
Remas Wojciechowski
http://www.aspalliance.com/remas/

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Bob Levittan (VIP)
Actually:

^\$[0-9]+(\.[0-9][0-9])?$

does what I want - only matching a dollar amount, not matching within a
string.

----Original Message Follows----
From: Remas Wojciechowski <Click here to reveal e-mail address>
Reply-To: "aspngregexp" <Click here to reveal e-mail address>
To: "aspngregexp" <Click here to reveal e-mail address>
Subject: [aspngregexp] Re: Word boundaries
Date: Wed, 18 Jul 2001 08:36:25 -0700 (PDT)

Bob,

how about you use a negative lookahead, i.e. find all matches that have
two digits after which there is not another digit:
[0-9][0-9](?![0-9])
[0-9][0-9] could be also written as [0-9]{2}

hth,
Remas
http://www.aspalliance.com/remas/

--- Bob Levittan <Click here to reveal e-mail address> wrote:
[Original message clipped]

=====
Remas Wojciechowski
http://www.aspalliance.com/remas/

__________________________________________________
Do You Yahoo!?
Get personalized email addresses from Yahoo! Mail
http://personal.mail.yahoo.com/

| [aspngregexp] member Click here to reveal e-mail address = YOUR ID
| http://www.asplists.com/asplists/aspngregexp.asp = JOIN/QUIT
| http://www.asplists.com/search = SEARCH Archives

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