Re: [cl-who-devel] Interpolate lisp code inside the tag body

Quoth Matus Kmit simply.nitaai@gmail.com:

How does one properly embed and evaluate lisp code inside the tag body?

You can 'embed' the *value* of an attribute, but not attributes themselves.

In practice this is not a serious limitation.

(:p (fn)) does not work.

No, but this does:

(flet ((fn () "value")) (with-html-output-to-string (s) (:p :attribute (fn)))) => "<p attribute='value'></p>"

Note, that to do something similar in the text node of an element, you should use one of the exported symbols; esc, fmt or str.

http://weitz.de/cl-who/#esc

For example:

(flet ((fn () "Attributes and their values")) (with-html-output-to-string (s) (:h1 (str (fn))))) => "<h1>Attributes and their values</h1>"

Hope this helps,

Sebastian