Support for "&*uml;"-HTML-codes in ERB::Util.html_escape (solution included)
Certain language specific chars like the german "Umlaute" are represented in HTML with "ä" (ä), "ü" (ü) etc.
Since ERB::Util.html_escape escapes the & to become "&" one cannot use these HTML codes.
To work around this problem I modified ERB::Util.html_escape like this:
def html_escape(s) s.to_s.gsub(/&(?!.uml)/, "&").gsub(/\"/, """).gsub(/>/, ">").gsub(/</, "<") end
The modification is in the first call of gsub where I added the condition (?!.uml).
it forces the function to ignore the "&" if it is followed by a pattern that indicates one of the aforementiond HTML-codes.
I consider this being a safe modification.