[html-template-devel] problem with UTF characters in template

[Edi Weitz]

On Fri, 18 May 2007 11:24:15 -0400, Dimitre Liotev <dl at znain.net> wrote:

> I am using the "Simple example" from your page
> http://weitz.de/html-template/, specifying :external-format "UTF-8"
> in the call to create-template-printer:

Is the string "UTF-8" a valid external format specifier on AllegroCL?

> (defparameter *template-dispatcher*
>   (hunchentoot:create-prefix-dispatcher "/template-test/"
>    (lambda ()
>      (let* ((html-template:*string-modifier* #'identity)
>            (rows (loop for i below 49 by 7
>                    collect
>                      (list :cols
>                            (loop for j from i below (+ i 7)
>                               for string = (format nil "~R" j)
>                               collect (list :content string 
>                                             :colorful-style (oddp j))))))
>           (values (list :rows rows)))
>        (with-output-to-string (html-template:*default-template-output*)
>          (html-template:fill-and-print-template
>           (html-template:create-template-printer #p"foo.tmpl" :external-format "UTF-8")
>           values))))))
>
> [...]
>
>  12: ((METHOD STREAM-WRITE-CHAR
>        (FLEXI-STREAMS::FLEXI-LATIN-1-OUTPUT-STREAM T))
>       #<FLEXI-STREAMS::FLEXI-LATIN-1-OUTPUT-STREAM @ #x21279e5a> #\?)
>       Locals:
>         STREAM = #<FLEXI-STREAMS::FLEXI-LATIN-1-OUTPUT-STREAM @
>   #x21279e5a>
>         CHAR = #\?
>         CHAR = #\?
>         FLEXI-STREAMS:OCTET = 1044
>         STREAM = #<FLEXI-STREAMS::FLEXI-LATIN-1-OUTPUT-STREAM @
>   #x21279e5a>

The condition is signalled when Hunchentoot is trying to write the
page to the client.  You have to make sure that Hunchentoot knows that
it's supposed to output UTF-8.  See the examples that come with
Hunchentoot for how this can be done.  (And you should also set the
headers accordingly, so the browser knows what to expect.)