regex url validator?

[Tom Glod]

<SOLVED>

I originally used

filter the lines of my_container with myregex

or filter my_container with myregex

none of the expressions worked..... just blanked out.

When I used the same form as Steve...it worked.

filter my_container with regex pattern myregex   into my_variable

So is that a bug in the filter command? literally lost hours on this.

Maybe the documentation needs a tweak.

Thank you all ..... onto some working code. :)


On Tue, Oct 23, 2018 at 9:27 AM 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
> > _______________________________________________
> > use-livecode mailing list
> > use-livecode at lists.runrev.com
> > Please visit this url to subscribe, unsubscribe and manage your
> subscription preferences:
> > http://lists.runrev.com/mailman/listinfo/use-livecode
>
> _______________________________________________
> use-livecode mailing list
> use-livecode at lists.runrev.com
> Please visit this url to subscribe, unsubscribe and manage your
> subscription preferences:
> http://lists.runrev.com/mailman/listinfo/use-livecode