XQuery to parse a space-delimited string

[Phantom]

I'm wondering if anyone knows a trick to iterate a FLWR expression
across a literal string that is delimited by spaces.

e.g.

for $x in ("apple orange banana blueberry")

obviously, this doesn't work, since the string is delimited by a space
rather than being well-formed XML.

how would one get around this? I have no control over the incoming XML,
so I can't enforce proper encoding... I have to work across the string.

it did occur to me just to slice apart the string and do a for $index
in (1 to $wordCount) , but I couldn't figure out how to count words
within Xpath.

thanks in advance.
p

[Peyo]

Re: XQuery to parse a space-delimited string

Phantom a écrit :

I'm wondering if anyone knows a trick to iterate a FLWR expression
across a literal string that is delimited by spaces.
>
e.g.
>
for $x in ("apple orange banana blueberry")
>
obviously, this doesn't work

There is deidcated XPath 2.0/XQuery function todo this :

http://www.w3.org/TR/xquery-operators/

Read this section in paticular :

http://www.w3.org/TR/xquery-operators/#string.match

Cheers,

p.

[Martin Honnen]

Re: XQuery to parse a space-delimited string

Phantom wrote:

I'm wondering if anyone knows a trick to iterate a FLWR expression
across a literal string that is delimited by spaces.
>
e.g.
>
for $x in ("apple orange banana blueberry")

for $x in tokenize("apple orange banana blueberry", " ")

See http://www.w3.org/TR/xpath-functions/#func-tokenize

--

Martin Honnen

http://JavaScript.FAQTs.com/

[Joe Kesselman]

Re: XQuery to parse a space-delimited string

Of course there are also recursive solutions (which is how XSLT 1.0
would have to solve that problem).

--
() ASCII Ribbon Campaign | Joe Kesselman
/\ Stamp out HTML e-mail! | System architexture and kinetic poetry

[Phantom]

Re: XQuery to parse a space-delimited string

On 2008-10-18 04:11:28 -0700, Martin Honnen <mahotrash@yaho o.desaid:

Phantom wrote:

>I'm wondering if anyone knows a trick to iterate a FLWR expression
>across a literal string that is delimited by spaces.
>>
>e.g.
>>
>for $x in ("apple orange banana blueberry")

>
for $x in tokenize("apple orange banana blueberry", " ")
>
See http://www.w3.org/TR/xpath-functions/#func-tokenize

Beautiful, Martin (and Peyo), tokenize was the spell I needed:

for $id in tokenize(string ($r), " ")
return <id>{string($id )}</id>


Very slick, thank you! I'll remeber you every time I tokenize 8^)

Joe, I'd considered the recursion as a last ditch effort; it always
gives me headaches, and I was afraid of the slow down for large strings.

Have a great halloween, guys!

p.