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Re: XPath: what's the answre to True >= False

• To: Berend de Boer <berend@x...>
• Subject: Re: XPath: what's the answre to True >= False
• From: Paul Warren <pdw@d...>
• Date: 06 Dec 2002 09:23:42 +0000
• Cc: xml-dev <xml-dev@l...>
• In-reply-to: <3DEFF04C.8050301@x...>
• References: <3DEFF04C.8050301@x...>

On Fri, 2002-12-06 at 00:33, Berend de Boer wrote:
> Hello All,
> 
> When trying to create another XPath implementation I stumbled upon the 
> somewhat complex conversion in paragraph 3.5: Booleans. To compare a 
> boolean and a node-set, both are converted to Booleans. For all 
> operators, including >= and <=. Can anyone tell me what:
> 
>     True >= False
>     False >= True
> 
> and
> 
>     False <= True
>     True <= False
> 
> is?
> 
> IMO, paragraph 3.5 could have been simpler if all comparisons with >= 
> and <= first would have been converted to number. Would make the 
> paragraph shorter as well.

Take a look in 3.4 - it says:

When neither object to be compared is a node-set and the operator is <=,
<, >= or >, then the objects are compared by converting both objects to
numbers and comparing the numbers...

So your request is fulfilled :)

Paul
-- 
Paul Warren, Client Services           DecisionSoft Limited
+44-1865-203192                        http://www.decisionsoft.com

• References:
  • XPath: what's the answre to True >= False
    • From: Berend de Boer <berend@x...>

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