February 2008 - cl-who-devel@common-lisp.net

[cl-who-devel] with-html-output-to-string (str)
by Victor Kryukov 09 Aug '08

09 Aug '08

The following code produces errors on two of my systems (Linux and Mac) for both CLISP and SBCL: (require 'asdf) (asdf:oos 'asdf:load-op :cl-who) (defpackage :test (:use :cl :cl-who)) (in-package :test) (with-html-output-to-string (str) (:html (:title "test"))) It looks like a bug, macro variable capture, to me, but it may well be my misunderstanding/misuse of CL-WHO. I'd appreciate your comments, as usual. -- Yours Sincerely, Victor Kryukov

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[cl-who-devel] Macroexpansion of with-html-output body?
by Eli Naeher 02 Mar '08

02 Mar '08

Hello, It seems like it would be nice to expand any macros detected while walking the tree of the w-h-o body. This would allow users to define their own pseudo-tags a little more flexibly than is possible with convert-tag-to-string-list. In particular, it would allow the user to create a tag which modifies its body (as a tree) even when that body contains the expansion of another user-defined tag. I don't believe this is currently possible, as this hypothetical outer tag would have access only to the HTML strings returned by the convert-tag-to-string-list specialized on the inner tag and not to the relevant s-expressions. Is there any interest in a patch implementing this behavior? Thanks, --Eli

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[cl-who-devel] Parsing html again
by Andrei Stebakov 27 Feb '08

27 Feb '08

When we generate the JavaScript <script> with cl-who we need to put the empty string at the end of the command to have the closing </script> tag like so: (with-html-output-to-string (*standard-output* nil :prologue nil :indent nil) (:html (:head (:title "Temporary page") (:script :language "JavaScript" :src "/test/scripts.js" :type "text/javascript" "")))) It will generate: <html><head><title>Temporary page</title><script language='JavaScript' src='/test/scripts.js' type='text/javascript'></script></head></html> Now if we parse the html with html-parse:parse-html command and convert it back to the string with tree-to-string (here is the thread<http://common-lisp.net/pipermail/cl-who-devel/2007-November/000109.html>about this command) we'll get the broken <script> tag without the closing </script> It's because html-parse:parse-html will produce ((:HTML (:HEAD (:TITLE "Temporary page") ((:SCRIPT :LANGUAGE "JavaScript" :SRC "/test/scripts.js" :TYPE "text/javascript"))))) Note, that there is no "" at the end of (:script) anymore. My question is where this problem should be fixed at html-parse:parse-html level so that parse-html would insert the "" when it finds the <script> tag, or there is a clean way to do it in cl-who?

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