Links

Lists

Latest Updates

Ruby On Rails List
Python list
Advanced Java
The JavaScript List
Apache Users
Full Disclosure
Linux Security

Search the archives!
Having a development problem? Ask eDevelopment.org forums!

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Javascript] Regular Expression example

  • From: shawn.milo at gmail.com (Shawn Milo)
  • Subject: [Javascript] Regular Expression example
  • Date: Wed Jun 29 14:52:04 2005
I love regular expressions, what can I say? ;o)

If you have any glitches, just post again.

You're most welcome.

Shawn

On 6/29/05, Falls, Travis D (HTSC, CASD) <Travis.Falls@xxxxxxxxxxxxxxx> wrote:
> Shawn,
> Thanks a lot!  I appreciated the words of wisdom.
> 
> Travis D. Falls | Consultant   RAFT.Net   IT | 860.547.4070 |
> travis.falls@xxxxxxxxxxxxxxx
> 
> 
> -----Original Message-----
> From: javascript-bounces@xxxxxxxxxx
> [mailto:javascript-bounces@xxxxxxxxxx]On Behalf Of Shawn Milo
> Sent: Wednesday, June 29, 2005 3:12 PM
> To: [JavaScript List]
> Subject: Re: [Javascript] Regular Expression example
> 
> 
> Travis,
> 
> Delighted to help. Several notes:
> 
> 1. It looks like you're a VBScript coder, as am I. The syntax in
> JavaScript is .match, not .test. ;-)
> 
> 2. I fixed the regex to make it a little simpler and a little more
> comprehensive.
>    It allowed  0:00 but not 13:00, so I figured you didn't want military
> time.
> 
> 3. You were referring to the text box in a non-standard way, so I fixed it.
> 
> 4. You had an argument in the function declaration, but you weren't
> passing anything to the function. I took it out. I'm sure you're
> planning to change it to accept one, but it's "correct" for now.
> 
> 5. I would maybe clean up that three-part if with an outer if, then
> make the match pass/fail a nested if/else. Just my preference -- I
> think it looks cleaner.
> 
> Tested and working.  :o)
> 
> 
> Shawn
> 
> 
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
> <html>
>  <head>
>   <title>Regular Expression Test</title>
>   <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
>   <script language="JavaScript">
>   String.prototype.trim=function(){
>    return this.replace(/^\s*|\s*$/g,'');
>   }
> 
>   String.prototype.ltrim=function(){
>    return this.replace(/^\s*/g,'');
>   }
> 
>   String.prototype.rtrim=function(){
>       return this.replace(/\s*$/g,'');
>   }
> 
> 
> 
>   function isValidTime(value) {
>    var returnValue = true;
>       var hasMeridian = false;
>       var re = /^\d{1,2}[:]\d{2}([:]\d{2})?( [aApP][mM]?)?$/;
>       if (!re.test(value)) {
>         returnValue = true;
>         return returnValue;
>    }
>       if (value.toLowerCase().indexOf("p") != -1) {
>     hasMeridian = true;
>    }
>       if (value.toLowerCase().indexOf("a") != -1) {
>     hasMeridian = true;
>    }
>       var values = value.split(":");
>       if ((parseFloat(values[0]) < 0) || (parseFloat(values[0]) > 23) ) {
>     returnValue = false;
>    }
>       if (hasMeridian) {
>           if ( (parseFloat(values[0]) < 1) || (parseFloat(values[0]) > 12) )
> {
>      returnValue = false;
>     }
>       }
>       if ((parseFloat(values[1]) < 0) || (parseFloat(values[1]) > 59) ) {
>     returnValue = false;
>    }
>       if (values.length > 2) {
>           if ((parseFloat(values[2]) < 0) || (parseFloat(values[2]) > 59) )
> {
>      returnValue = false;
>     }
>       }
>       return returnValue;
>   }
> 
> 
> 
> 
>   function checkPassword (u) {
>    var isvt = new isValidTime();
>    var error = "";
>    //var validTime = new
> RegExp(/\A([0-1]?[0-9]:[0-5][0-9]([:][0-5][0-9])?([
> ]?[a,A,p,P][.]?[m,M][.]?)?)\z/);
>    //var validTime = new
> RegExp(/([0-1]?[0-9]:[0-5][0-9]([:][0-5][0-9])?(\s*[aApP]\.?[mM]?\.?)?)/);
>    var validTime = new
> RegExp(/^(1[0-2]|[1-9]):[0-5][0-9](:[0-5][0-9])?(\s+[aApP]\.?[mM]\.?)?$/);
>    strng = document.forms['form'].time.value;
>    strng = strng.replace(/^\s*(.*)\s*$/, '$1')
> 
>    if (strng == "") {
>      error = "String not filled in";
>    }
>    else if (strng.match(validTime)) {
>           error = "String is formatted correctly.\n" + strng + "\n" +
> validTime;
>    }
>    else if (!strng.match(validTime)) {
>     error = "String NOT formatted correctly.\n" + strng + "\n" + validTime;
>    }
>    alert(error);
>    var ivt = new isValidTime(strng);
>    if(ivt.returnValue){
>     alert("valid");
>    }
>   }
> 
> 
> 
>   </script>
>  </head>
> <body>
>  <form name="form" id="form" onsubmit="return checkPassword();">
>   <input id="time" name="time" maxlength="50" type="text" />
>   <input type="submit" id="submit" name="submit" />
>  </form>
> </body>
> </html>
> 
> 
> 
> 
> 
> 
> 
> 
> 
> On 6/29/05, Falls, Travis D (HTSC, CASD) <Travis.Falls@xxxxxxxxxxxxxxx>
> wrote:
> >
> > I have a regular expression example I am trying to get to work.  I know
> the
> > expressions works because I have tested it in the Regular Expression Buddy
> > application however it does not validate in my JavaScript as true. Does
> > anyone see what I have done incorrect here?
> >
> > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
> > <html>
> >  <head>
> >   <title>Regular Expression Test</title>
> >   <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
> >   <script language="JavaScript">
> >   String.prototype.trim=function(){
> >    return this.replace(/^\s*|\s*$/g,'');
> >   }
> >
> >   String.prototype.ltrim=function(){
> >    return this.replace(/^\s*/g,'');
> >   }
> >
> >   String.prototype.rtrim=function(){
> >       return this.replace(/\s*$/g,'');
> >   }
> >
> >
> >
> >   function isValidTime(value) {
> >    var returnValue = true;
> >       var hasMeridian = false;
> >       var re = /^\d{1,2}[:]\d{2}([:]\d{2})?( [aApP][mM]?)?$/;
> >       if (!re.test(value)) {
> >         returnValue = true;
> >         return returnValue;
> >    }
> >       if (value.toLowerCase().indexOf("p") != -1) {
> >     hasMeridian = true;
> >    }
> >       if (value.toLowerCase().indexOf("a") != -1) {
> >     hasMeridian = true;
> >    }
> >       var values = value.split(":");
> >       if ((parseFloat(values[0]) < 0) || (parseFloat(values[0]) > 23) ) {
> >     returnValue = false;
> >    }
> >       if (hasMeridian) {
> >           if ( (parseFloat(values[0]) < 1) || (parseFloat(values[0]) > 12)
> )
> > {
> >      returnValue = false;
> >     }
> >       }
> >       if ((parseFloat(values[1]) < 0) || (parseFloat(values[1]) > 59) ) {
> >     returnValue = false;
> >    }
> >       if (values.length > 2) {
> >           if ((parseFloat(values[2]) < 0) || (parseFloat(values[2]) > 59)
> )
> > {
> >      returnValue = false;
> >     }
> >       }
> >       return returnValue;
> >   }
> >
> >
> >
> >
> >   function checkPassword (strng) {
> >    var isvt = new isValidTime();
> >    var error = "";
> >    var validTime = new
> > RegExp(/\A([0-1]?[0-9]:[0-5][0-9]([:][0-5][0-9])?([
> > ]?[a,A,p,P][.]?[m,M][.]?)?)\z/);
> >    strng = form.time.value.trim();
> >    if (strng == "") {
> >      error = "String not filled in";
> >    }
> >    else if (validTime.test(strng)) {
> >           error = "String is formatted correctly.\n" + strng + "\n" +
> > validTime;
> >    }
> >    else if (!validTime.test(strng)) {
> >     error = "String NOT formatted correctly.\n" + strng + "\n" +
> validTime;
> >    }
> >    alert(error);
> >    var ivt = new isValidTime(strng);
> >    if(ivt.returnValue){
> >     alert("valid");
> >    }
> >   }
> >
> >
> >
> >   </script>
> >  </head>
> > <body>
> >  <form name="form" id="form" onsubmit="return checkPassword();">
> >   <input id="time" name="time" maxlength="50" type="text" />
> >   <input type="submit" id="submit" name="submit" />
> >  </form>
> > </body>
> > </html>
> >
> > Travis D. Falls | Consultant   RAFT.Net   IT | 860.547.4070 |
> > travis.falls@xxxxxxxxxxxxxxx
> >
> >
> >
> > *************************************************************************
> >  PRIVILEGED AND CONFIDENTIAL: This communication, including attachments,
> is
> >  for the exclusive use of addressee and may contain proprietary,
> >  confidential and/or privileged information. If you are not the intended
> >  recipient, any use, copying, disclosure, dissemination or distribution is
> >  strictly prohibited. If you are not the intended recipient, please notify
> >  the sender immediately by return e-mail, delete this communication and
> >  destroy all copies.
> > *************************************************************************
> >
> > _______________________________________________
> > Javascript mailing list
> > Javascript@xxxxxxxxxx
> > https://lists.LaTech.edu/mailman/listinfo/javascript
> >
> >
> >
> 
> 
> --
> Shawn Milochik
> 
> The Freelance Pen
> FreelancePen.com
> 610-621-2648
> _______________________________________________
> Javascript mailing list
> Javascript@xxxxxxxxxx
> https://lists.LaTech.edu/mailman/listinfo/javascript
> _______________________________________________
> Javascript mailing list
> Javascript@xxxxxxxxxx
> https://lists.LaTech.edu/mailman/listinfo/javascript
> 


-- 
Shawn Milochik

The Freelance Pen
FreelancePen.com
610-621-2648