XSD - what's a difference ?

[Matthet]

Hi,

Is there any difference if I write sth like this:

<xsd:simpleTy pe name="Name">
<xsd:restrictio n base="xsd:strin g">
<xsd:minLengt h value="1">
<xsd:maxLengt h value="10">
</xsd:restriction >
</xsd:simpleType>

and this:

<xsd:simpleTy pe name="Name">
<xsd:restrictio n base="xsd:strin g">
<xsd:pattern value=".{1,10}" >
</xsd:restriction >
</xsd:simpleType>

Thx for any help
MAciek

[Martin Boehm]

Re: XSD - what's a difference ?

"Matthet" <matthet@polbox .com> wrote in message
news:bknd6f$1ad $1@foka1.acn.pl
[color=blue]
> Is there any difference if I write sth like this:
>
> [xsd:string restricted by minLength and maxLength]
>
> and this:
>
> [xsd:string restricted by regex pattern][/color]

The effect of both restrictions is that you must have a string with at
least one and at most 10 characters. The only difference may be in
execution speed. Determinig the length of a string is faster than
matching it against a regular expression, be it as simple as it may.

If all you want to do is restricting string-length, you should stick
with minLenth and maxLength.

Martin

[Matthet]

Re: XSD - what's a difference ?

"Martin Boehm" wrote[color=blue]
>
> If all you want to do is restricting string-length, you should stick
> with minLenth and maxLength.
>[/color]

Thanks
I thought so but I wasn't sure.
I needed some expert opinion.

MAciek

[C. M. Sperberg-McQueen]

Re: XSD - what's a difference ?

"Matthet" <matthet@polbox .com> writes:
[color=blue]
> Is there any difference if I write sth like this:
>
> <xsd:simpleTy pe name="Name">
> <xsd:restrictio n base="xsd:strin g">
> <xsd:minLengt h value="1">
> <xsd:maxLengt h value="10">
> </xsd:restriction >
> </xsd:simpleType>
>
> and this:
>
> <xsd:simpleTy pe name="Name">
> <xsd:restrictio n base="xsd:strin g">
> <xsd:pattern value=".{1,10}" >
> </xsd:restriction >
> </xsd:simpleType>[/color]

The first matches any string with at least one and at most
ten characters. Since '.' is defined as matching any character
except linefeed or carriage return, the second matches the same
set of strings, minus those which contain a linefeed or carriage
return as one of their characters; it is equivalent to
"[^\n\r]{1,10}".

I hope this helps.

-C. M. Sperberg-McQueen
World Wide Web Consoritium