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Message-ID: <6913494.xuaST5U3oO@PointedEars.de>
From: Thomas 'PointedEars' Lahn <PointedEars@web.de>
Reply-To: Thomas 'PointedEars' Lahn <cljs@PointedEars.de>
Organization: PointedEars Software (PES)
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