SVGHMI: add support for "enable expressions" with arbitrary variable name assignment.
HMI tree paths can be prefixed with a variable name "@name=/MY/HMI/VAR"
Widget declarations can end with a "#" followed by a JS expression that refers to name given to variables.
Widget is disabled if expression's result is false.
Commit includes some more-or-less related generated code refactoring, that should simplify extending widget's variables attributes.
include yslt.yml2
!!
def indent(level):
return ""
!!
in xsl {
decl istylesheet (
*output="xml",
version="1.0",
xmlns:xsl="http://www.w3.org/1999/XSL/Transform",
xmlns:exsl='http://exslt.org/common',
xmlns:regexp="http://exslt.org/regular-expressions",
xmlns:str="http://exslt.org/strings",
xmlns:func="http://exslt.org/functions",
extension-element-prefixes='exsl regexp str func'
) alias stylesheet {
output *output;
content;
};
decl indent() alias -;
decl template(match) {
content;
};
decl function(name) alias template {
content;
};
decl call(name) alias call-template {
content;
};
decl apply(select) alias apply-templates {
content;
};
}