Hi,
thanks MightyByte. Great support on this mailing list.
cheers, Todd
On 25/04/2011, at 10:15 PM, MightyByte wrote:
> The problem with your first "<script><json/></script>" approach is
> that the parsing library has been designed to interpret everything
> inside the <script> tag as plain text, so you can't have splices
> there. If we didn't do this, the parser would interpret the less-than
> operator in javascript as the start of a new tag and you would get
> parse errors. Your approach is correct. Your splices have to add the
> script tags for you. Greg's suggestion should work. I have a splice
> that I use for this. Since it's a single tag I didn't bother with
> using blaze.
>
> scriptSplice :: Text
> -> (Text -> Text)
> -> Splice Application
> scriptSplice scriptType transform = do
> node <- getParamNode
> return $ [Element "script" [("type", scriptType)] $
> [TextNode $ transform $ catTextNodes $ childNodes node]]
>
> On Mon, Apr 25, 2011 at 7:45 AM, Gregory Collins
> <[email protected]> wrote:
>> On Mon, Apr 25, 2011 at 9:09 AM, Todd Porter <[email protected]> wrote:
>>> Hi Snap team,
>>>
>>> am enjoying learning your framework.
>>>
>>> I am trying to dynamically inject some json data into a page: <script>var
>>> json = {} </script>.
>>>
>>> At first I tried bindString to support something like
>>> <script><json/></script> but Heist ignores (correctly I guess?) or
>>> alternatively escapes if I decide to pull the script tags into my string.
>>>
>>> So then tried creating the nodes using Blaze as follows:
>>>
>>> jsonSplice :: Splice Application
>>> jsonSplice = return . renderHtml $ do
>>> H.script "var json = {}"
>>>
>>> but get the following:
>>>
>>> Couldn't match expected type `X.Node'
>>> with actual type `hexpat-0.19.6:Text.XML.Expat.Tree.NodeG
>>> [] BS.ByteString BS.ByteString'
>>> Expected type: Splice Application
>>> Actual type: TemplateMonad Application Forest
>>>
>>> Apologies if I am missing something obvious but this has me stumped, given
>>> the expected and actual types look equivalent to me.
>>
>> Problem seems to be that you are using Text.Blaze.Renderer.Hexpat, and
>> heist doesn't use hexpat under the hood anymore; now we use xmlhtml.
>> If you replace it with Text.Blaze.Renderer.XmlHtml (from the xmlhtml
>> package), it should work (?).
>>
>> G
>> --
>> Gregory Collins <[email protected]>
>> _______________________________________________
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>>
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