Allow wiki-Syntax in scalar.py

[anonymous]

Since r14524 it is not possible to include wiki-syntax to scalar-value output. For example, it is a nice feature to count the tickets of a user and point to the corresponding report:

{{{#!SQLScalar
SELECT '([query:?status=!closed&owner={{1}} '||count(id)||'],' FROM ticket WHERE status!="closed" AND owner="{{1}}"
}}}

The previous behaviour can be restored with the following patch:

(a) a/scalar.py.orig vs. (b) b/scalar.py

@@ -9 +9 @@
 #
 
 from trac.web.chrome import add_stylesheet
-from trac.wiki.formatter import system_message
+from trac.wiki.formatter import format_to_oneliner, system_message
 from trac.wiki.macros import WikiMacroBase
 from trac.util.html import html as tag
 from trac.util.text import exception_to_unicode
 from trac.util.translation import _
 
-
 class SQLScalar(WikiMacroBase):
     """Output a number from a scalar (1x1) SQL query.
 
@@ -39 +38 @@
         else:
             value = rows[0][0] if len(rows) else "(NULL)"
 
-        add_stylesheet(formatter.req, 'wikitable/css/wikitable.css')
-        return tag.span(value, class_='wikiscalar')
+        return format_to_oneliner(self.env, formatter.context, value)