include yslt.yml2
estylesheet xmlns:ppx="http://www.plcopen.org/xml/tc6_0201"
            xmlns:xhtml="http://www.w3.org/1999/xhtml"
            xmlns:ns="pou_block_instances_ns" 
            extension-element-prefixes="ns" 
            exclude-result-prefixes="ns" {

    template "text()";
    
    template "ppx:pou" {
        apply "ppx:body/*[self::ppx:FBD or self::ppx:LD or self::ppx:SFC]/*";
    }
    
    function "add_instance" {
        param "type";
        variable "instance" {
            > «ns:AddBlockInstance($type, @localId, ppx:position/@x, ppx:position/@y, @width, @height)»
        }
    }
    
    function "execution_order" {
        choose {
            when "@executionOrderId" > «@executionOrderId»
            otherwise > 0
        }
    }
    
    function "ConnectionInfos" {
        param "type";
        param "modifiers";
        param "formalParameter";
        variable "negated" {
            choose {
                when "$modifiers='input'" > «@negatedIn»
                when "$modifiers='output'" > «@negatedOut»
                otherwise > «@negated»
            }
        }
        variable "edge" {
            choose {
                when "$modifiers='input'" > «@edgeIn»
                when "$modifiers='output'" > «@edgeOut»
                otherwise > «@edge»
            }
        }
        variable "instance_connection" {
            > «ns:AddInstanceConnection($type, $formalParameter, $negated, $edge, ppx:relPosition/@x, ppx:relPosition/@y)»
        }
    }
    
    template "ppx:position" {
        variable "link_point" {
            > «ns:AddLinkPoint(@x, @y)»
        }
    }
    
    template "ppx:connection" {
        variable "connection_link" {
            > «ns:AddConnectionLink(@refLocalId, @formalParameter)»
        }
        apply "ppx:position";
    }
    
    template "ppx:connectionPointIn" {
        param "modifiers";
        param "formalParameter";
        call "ConnectionInfos" {
            with "type" > input
            with "modifiers" > «$modifiers»
            with "formalParameter" > «$formalParameter»
        }
        apply "ppx:connection";
    }
    
    template "ppx:connectionPointOut" {
        param "modifiers";
        param "formalParameter";
        call "ConnectionInfos" {
            with "type" > output
            with "modifiers" > «$modifiers»
            with "formalParameter" > «$formalParameter»
        }
    }
    
    template "ppx:connectionPointOutAction" {
        call "ConnectionInfos" {
            with "type" > output
        }
    }
    
    template "ppx:comment" {
        variable "type" > «local-name()»
        variable "instance_specific_values" {
            > «ns:SetSpecificValues(ppx:content/xhtml:p/text())»
        }
        call "add_instance" {
            with "type" > «$type»
        }
    }
    
    template "ppx:block" {
        variable "execution_order" {
            call "execution_order";
        }
        variable "instance_specific_values" {
            > «ns:SetSpecificValues(@instanceName, $execution_order)»
        }
        call "add_instance" {
            with "type" > «@typeName»
        }
        foreach "ppx:inputVariables/ppx:variable" {
            apply "ppx:connectionPointIn" {
                with "formalParameter" > «@formalParameter»
            }
        }
        foreach "ppx:outputVariables/ppx:variable" {
            apply "ppx:connectionPointOut" {
                with "formalParameter" > «@formalParameter»
            }
        }
    }
    
    template "*[self::ppx:type or self::ppx:baseType or self::ppx:returnType]/ppx:derived" {
        > «@name»
    }
  
    template "*[self::ppx:type or self::ppx:baseType or self::ppx:returnType]/ppx:string" {
        > STRING
    }
  
    template "*[self::ppx:type or self::ppx:baseType or self::ppx:returnType]/ppx:wstring" {
        > WSTRING
    }
    
    template "*[self::ppx:type or self::ppx:baseType or self::ppx:returnType]/*" {
        > «local-name()»
    }
    
    function "VariableBlockInfos" {
        param "type";
        variable "expression" > «ppx:expression/text()»
        variable "value_type" {
            choose {
                when "ancestor::ppx:transition[@name=$expression]" > BOOL
                when "ancestor::ppx:pou[@name=$expression]" {
                    apply "ancestor::ppx:pou/child::ppx:interface/ppx:returnType"
                }
                otherwise {
                    apply "ancestor::ppx:pou/child::ppx:interface/*/ppx:variable[@name=$expression]/ppx:type"
                }
            }
        }
        variable "execution_order" {
            call "execution_order";
        }
        variable "instance_specific_values" {
            > «ns:SetSpecificValues($expression, $value_type, $execution_order)»
        }
        call "add_instance" {
            with "type" > «$type»
        }
        apply "ppx:connectionPointIn" {
            with "modifiers" {
                choose {
                    when "$type='inout'" > input
                    otherwise > 
                }
            }
        }
        apply "ppx:connectionPointOut" {
            with "modifiers" {
                choose {
                    when "$type='inout'" > output
                    otherwise > 
                }
            }
        }
    }
    
    template "ppx:inVariable" {
        call "VariableBlockInfos" with "type", "'input'";
    }
    
    template "ppx:outVariable" {
        call "VariableBlockInfos" with "type", "'output'";
    }
    
    template "ppx:inOutVariable" {
        call "VariableBlockInfos" with "type", "'inout'";
    }
    
    template "ppx:connector|ppx:continuation" {
        variable "type" > «local-name()»
        variable "instance_specific_values" {
            > «ns:SetSpecificValues(@name)»
        }
        call "add_instance" {
            with "type" > «$type»
        }
        apply "ppx:connectionPointIn";
        apply "ppx:connectionPointOut";
    }
    
    template "ppx:leftPowerRail|ppx:rightPowerRail" {
        variable "type" > «local-name()»
        variable "connectors" {
            choose {
                when "$type='leftPowerRail'" > «count(ppx:connectionPointOut)»
                otherwise > «count(ppx:connectionPointIn)»
            }
        }
        variable "instance_specific_values" {
            > «ns:SetSpecificValues($connectors)»
        }
        call "add_instance" {
            with "type" > «$type»
        }
        choose {
            when "$type='leftPowerRail'" {
                apply "ppx:connectionPointOut";
            }
            otherwise {
                apply "ppx:connectionPointIn";
            }
        }
    }
    
    template "ppx:contact|ppx:coil" {
        variable "type" > «local-name()»
        variable "storage" {
            choose {
                when "$type='coil'" > «@storage»
                otherwise > 
            }
        }
        variable "execution_order" {
            call "execution_order";
        }
        variable "instance_specific_values" {
            > «ns:SetSpecificValues(ppx:variable/text(), @negated, @edge, $storage, $execution_order)»
        }
        call "add_instance" {
            with "type" > «$type»
        }
        apply "ppx:connectionPointIn";
        apply "ppx:connectionPointOut";
    }
    
    template "ppx:step" {
        variable "type" > «local-name()»
        variable "instance_specific_values" {
            > «ns:SetSpecificValues(@name, @initialStep)»
        }
        apply "ppx:connectionPointOutAction";
        call "add_instance" {
            with "type" > «$type»
        }
        apply "ppx:connectionPointIn";
        apply "ppx:connectionPointOut";
    }
    
    template "ppx:transition" {
        variable "type" > «local-name()»
        variable "priority" {
            choose {
                when "@priority" > «@priority»
                otherwise > 0
            }
        }
        variable "condition_type" {
            choose {
                when "ppx:condition/ppx:connectionPointIn" > connection
                when "ppx:condition/ppx:reference" > reference
                when "ppx:condition/ppx:inline" > inline
                otherwise > 
            }
        }
        variable "condition" {
            choose {
                when "ppx:reference" > «ppx:condition/ppx:reference/@name»
                when "ppx:inline" > «ppx:condition/ppx:inline/ppx:body/ppx:ST/xhtml:p/text()»
                otherwise > 
            }
        }
        variable "instance_specific_values" {
            > «ns:SetSpecificValues($priority, $condition_type, $condition)»
        }
        apply "ppx:condition/ppx:connectionPointIn";
        call "add_instance" {
            with "type" > «$type»
        }
        apply "ppx:connectionPointIn";
        apply "ppx:connectionPointOut";
    }
    
    template "ppx:selectionDivergence|ppx:selectionConvergence|ppx:simultaneousDivergence|ppx:simultaneousConvergence" {
        variable "type" > «local-name()»
        variable "connectors" {
            choose {
                when "ppx:selectionDivergence|ppx:simultaneousDivergence" {
                    > «count(ppx:connectionPointOut)»
                }
                otherwise > «count(ppx:connectionPointIn)»
            }
        }
        variable "instance_specific_values" {
            > «ns:SetSpecificValues($connectors)»
        }
        call "add_instance" {
            with "type" > «$type»
        }
        apply "ppx:connectionPointIn";
        apply "ppx:connectionPointOut";
    }
    
    template "ppx:jumpStep" {
        variable "type" > jump
        variable "instance_specific_values" {
            > «ns:SetSpecificValues(@targetName)»
        }
        call "add_instance" {
            with "type" > «$type»
        }
        apply "ppx:connectionPointIn";
    }
    
    template "ppx:action" {
        variable "type" {
            choose {
                when "ppx:reference" > reference
                when "ppx:inline" > inline
                otherwise > 
            }
        }
        variable "value" {
            choose {
                when "ppx:reference" > «ppx:reference/@name»
                when "ppx:inline" > «ppx:inline/ppx:ST/xhtml:p/text()»
                otherwise > 
            }
        }
        variable "qualifier" {
            choose {
                when "@qualifier" > «@qualifier»
                otherwise > N
            }
        }
        variable "actionBlock_action" {
            > «ns:AddAction($qualifier, $type, $value, @duration, @indicator)»
        }
    }
    
    template "ppx:actionBlock" {
        variable "type" > «local-name()»
        variable "instance_specific_values" {
            > «ns:SetSpecificValues()»
        }
        apply "ppx:action";
        call "add_instance" {
            with "type" > «$type»
        }
        apply "ppx:connectionPointIn";
    }
}