regex url validator?

[Sean Cole (Pi)]

>
> Maybe the documentation needs a tweak.


Will do...

Sean


On Tue, 23 Oct 2018 at 15:04, Tom Glod via use-livecode <
use-livecode at lists.runrev.com> wrote:

> <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.
>
>
>
> 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
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