Re: JavaScript Regex

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From	Thomas 'PointedEars' Lahn <PointedEars@web.de>
Reply-To	Thomas 'PointedEars' Lahn <cljs@PointedEars.de>
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Date	Thu, 12 Jan 2012 16:42:38 +0100
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Subject	Re: JavaScript Regex
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Denis McMahon wrote:

> On Wed, 11 Jan 2012 20:51:26 -0800, Gene Wirchenko wrote:
>>      I wish to parse a string to see if it is a valid fixed-decimal
>> value.
> 
> /^[+-]?\d{1,}(\.\d*)?$/
> 
> http://www.sined.co.uk/tmp/regex.htm

Wrong, see the ECMAScript Language Specification and, e. g., the JSON 
website.  And what is *fixed* about this?

  !isNaN(+s)

where `s' is a String value, suffices for strings representing floating-
point values.  If "fixed" is supposed to mean "a fixed number of decimals", 
a more elaborate expression needs to be used, but not this one (what about 
leading "." and scientific notation?).  We have been over this.

PointedEars
-- 
var bugRiddenCrashPronePieceOfJunk = (
    navigator.userAgent.indexOf('MSIE 5') != -1
    && navigator.userAgent.indexOf('Mac') != -1
)  // Plone, register_function.js:16

Thread

JavaScript Regex Gene Wirchenko <genew@ocis.net> - 2012-01-11 20:51 -0800
  Re: JavaScript Regex Ross McKay <au.org.zeta.at.rosko@invalid.invalid> - 2012-01-12 17:07 +1100
    Re: JavaScript Regex Gene Wirchenko <genew@ocis.net> - 2012-01-12 12:13 -0800
      Re: JavaScript Regex "Evertjan." <exjxw.hannivoort@interxnl.net> - 2012-01-12 20:48 +0000
        Re: JavaScript Regex Dr J R Stockton <reply1202@merlyn.demon.co.uk> - 2012-01-14 20:41 +0000
          Re: JavaScript Regex "Evertjan." <exjxw.hannivoort@interxnl.net> - 2012-01-15 20:08 +0000
            Re: JavaScript Regex Dr J R Stockton <reply1203@merlyn.demon.co.uk> - 2012-01-16 21:55 +0000
  Re: JavaScript Regex Denis McMahon <denismfmcmahon@gmail.com> - 2012-01-12 15:05 +0000
    Re: JavaScript Regex Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-01-12 16:42 +0100
      Re: JavaScript Regex "Evertjan." <exjxw.hannivoort@interxnl.net> - 2012-01-12 16:09 +0000
    Re: JavaScript Regex "Evertjan." <exjxw.hannivoort@interxnl.net> - 2012-01-12 15:56 +0000
      Re: JavaScript Regex Dr J R Stockton <reply1202@merlyn.demon.co.uk> - 2012-01-14 20:44 +0000
      Re: JavaScript Regex Dr J R Stockton <reply1203@merlyn.demon.co.uk> - 2012-01-19 19:59 +0000
        Re: JavaScript Regex "Evertjan." <exjxw.hannivoort@interxnl.net> - 2012-01-20 09:19 +0000
          Re: JavaScript Regex Dr J R Stockton <reply1203@merlyn.demon.co.uk> - 2012-01-21 20:27 +0000
  Re: JavaScript Regex Dr J R Stockton <reply1202@merlyn.demon.co.uk> - 2012-01-14 21:23 +0000
    Re: JavaScript Regex Gene Wirchenko <genew@ocis.net> - 2012-01-15 21:10 -0800
      Re: JavaScript Regex Dr J R Stockton <reply1203@merlyn.demon.co.uk> - 2012-01-17 20:01 +0000
        Re: JavaScript Regex Scott Sauyet <scott.sauyet@gmail.com> - 2012-01-18 05:42 -0800
          Re: JavaScript Regex Dr J R Stockton <reply1203@merlyn.demon.co.uk> - 2012-01-19 20:11 +0000

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