You could use the IsValid on a range then do a check for no more than the
tenths place. The IsValid will see if it is numeric or not and range from 0
to 40. Then use regex for the decimal place. It might lesson the regex and
make it easier at a later date to remember what was done if/when a
modification to it is needed. That assumes regex is not someones strong
point.
With that said if someone just really was opposed to using regex then
another way would be to get messy with list functions(which sadly I read way
too well):
<cfset blah = 40 />
<cfif IsValid("range", blah, 0, 40) AND (ListLen(blah, ".") IS 1 OR
ListLast(blah, ".") LT 10)>TRUE<cfelse>FALSE</cfif>
On Mon, Sep 20, 2010 at 1:05 PM, Chris Champion
<[email protected]>wrote:
> Whoops, dropped an "or" in my copy/pasting.
> <cfif NOT isNumeric(testNum) OR testNum LT 0 OR testNum GT 40 OR
> refind("^[0-9]{1,2}(\.[0-9])?$",testnum) is 0>
> <cfoutput>You done failed the validation, pardner.</cfoutput>
> </cfif>
>
> On Mon, Sep 20, 2010 at 1:04 PM, Chris Champion <
> [email protected]> wrote:
>
>> Ah then that's easier. Use ^[0-9]{1,2}(\.[0-9])?$ for your regex. (In
>> human, that means "at the beginning of the string, find one or two numbers
>> between 0 and 9, optionally followed by a period and another number, then
>> the end of the string.")
>>
>> <cfif NOT isNumeric(testNum) testNum LT 0 or testNum GT 40 or
>> refind("^[0-9]{1,2}(\.[0-9])?$",testnum) is 0>
>> <cfoutput>You done failed the validation, pardner.</cfoutput>
>> </cfif>
>>
>>
>>
>> On Mon, Sep 20, 2010 at 12:20 PM, Mark Davis <[email protected]> wrote:
>>
>>> this will be in a CF function used for server-side form validation.
>>>
>>> On Mon, Sep 20, 2010 at 12:08 PM, Chris Champion <
>>> [email protected]> wrote:
>>>
>>>> Ick, numeric ranges are actually pretty difficult to do in regex. If
>>>> possible I would do two distinct functions and "wrap" a regex for the
>>>> numeric pattern ##.# with a separate range check for 0-40. Where will you
>>>> be
>>>> implementing this? In CF functions, in a validation in a cfinput, or some
>>>> freestanding javascript?
>>>>
>>>>
>>>>
>>>> On Mon, Sep 20, 2010 at 11:03 AM, <[email protected]> wrote:
>>>>
>>>>> Here, let me Google That For You...
>>>>>
>>>>> http://www.txt2re.com/
>>>>>
>>>>>
>>>>> *James E. Thomas*
>>>>> Baker Botts L.L.P. Web Developer
>>>>> office: 713.229.2196 | mobile: 832.373.8117
>>>>>
>>>>>
>>>>> ------------------------------
>>>>> *From:* [email protected] [mailto:[email protected]] *On
>>>>> Behalf Of *Mark Davis
>>>>> *Sent:* Monday, September 20, 2010 10:44 AM
>>>>> *To:* [email protected]
>>>>> *Subject:* [houcfug] regex help
>>>>>
>>>>> Where are the regex experts? I fully admit I suck at regex so I am
>>>>> asking for help. Can anyone help me construct a regex that will accept
>>>>> numbers 0 through 40 (inclusive) and allow for a decimal point and one
>>>>> decimal place? So 0, .5, 6.8 and 40 are valid. 3.77, 40.1 are not
>>>>> valid.
>>>>>
>>>>> Who wants to be my hero?
>>>>>
>>>>> Thanks
>>>>>
>>>>> Mark
>>>>>
>>>>> --
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>>>>
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>>
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http://www.happyhacker.com/
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