regex url validator?

[Bob Sneidar]

This looks like it is dependent on other functions. Are these built into Livecode??

Bob S


> On Oct 23, 2018, at 06:26 , Stephen MacLean via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> Hi Tom,
> 
> Don’t know if you found a solution yet, but this is from the rsIsValid suite I put together a few years back.
> 
> http://forums.livecode.com/viewtopic.php?f=16&t=26653&p=138698#p138698 <http://forums.livecode.com/viewtopic.php?f=16&t=26653&p=138698#p138698>. 
> https://github.com/renegadesteve/rsIsValid <https://github.com/renegadesteve/rsIsValid>
> 
> 
> Below is the LCS version:
> function rsIsValidURL pURL
> 
> put pURL into tCC
> 
> // get scheme
> 
> put "^(?<scheme>[a-z][a-z0-9+\-.]*):" into tSchemeRegex
> 
> get matchText(tCC, tSchemeRegex,tScheme)
> 
> // check scheme for http, https, ftp, ftps, mailto, nntp, news, or file
> 
> if it <> true then return false
> 
> if tScheme = "mailto" then
> 
> //get the email address from the URL and then validate it
> 
> delete char 1 to 7 of tCC
> 
> return rsIsValidEmail_LC(tCC)
> 
> else
> 
> // setup the regex pattern
> 
> put "^(?:http://|https://|ftp://|ftps://|nntp://|news://)(?:\S+(?::\S*)?@)?(?:(?!(?:10|127)(?:\.\d{1,3}){3})(?!(?:169\.254|192\.168)(?:\.\d{1,3}){2})(?!172\.(?:1[6-9]|2\d|3[0-1])(?:\.\d{1,3}){2})(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:\.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.(?:[1-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z\x{00a1}-\x{ffff}0-9]-*)*[a-z\x{00a1}-\x{ffff}0-9]+)(?:\.(?:[a-z\x{00a1}-\x{ffff}0-9]-*)*[a-z\x{00a1}-\x{ffff}0-9]+)*(?:\.(?:[a-z\x{00a1}-\x{ffff}]{2,}))\.?)(?::\d{2,5})?(?:[/?#]\S*)?$" into tURLRegex
> 
> // run filter against regex pattern and set result to true if it matches.
> 
> filter tCC with regex pattern tURLRegex into tMatch
> 
> if tMatch <> empty then
> 
> return true
> 
> else
> 
> return false
> 
> end if
> 
> end if
> 
> end rsIsValidURL
> 
> 
> Best,
> 
> Steve MacLean
> 
>> On Oct 22, 2018, at 10:07 PM, Tom Glod via use-livecode <use-livecode at lists.runrev.com> wrote:
>> 
>> Hi peeps,
>> 
>> I'm trying to use regex to validate a list of URLs
>> 
>> I've tried 4 or 5 different "regular" expressions that supposedly work
>> ..... but LC does not give me anything back.  None of them work,
>> 
>> Like for example ... this one.
>> 
>> ^(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.]+$
>> 
>> or this one
>> 
>> /^(https?:\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?$/
>> 
>> or this one just to make sure
>> 
>> (https?://([-\w\.]+)+(:\d+)?(/([\w/_\.]*(\?\S+)?)?)?)
>> 
>> Does anyone know how to get these or others to work in LC?
>> 
>> Thanks,
>> 
>> Tom
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