Added $$$TRACE. Added SeparateLines parameter.

Fixed #21
Fixed #20

Author: eduard93

isc/py/data/Context.cls

@@ -93,6 +93,7 @@ Method Init()
 /// set sc=##class(isc.py.data.Context).SaveContext()
 ClassMethod SaveContext(Output context As isc.py.data.Context, verbose As %Boolean = {$$$NO}) As %Status
 {
+	kill context
 	set context = ..%New()
 	do context.Init()
 	//do obj.PopulateHistory()

isc/py/ens/Operation.cls

@@ -14,7 +14,14 @@ Method OnMessage(request As isc.py.ens.Request, Output response As isc.py.ens.Re
 	quit:'$Listvalid(variables) $$$ERROR($$$AttributeValueMustBeList, "variables")
 
 	set variable = $lg(variables, 1)
-	set value = ..Adapter.Execute(request.Code, variable)
+	
+	if request.SeparateLines = $$$YES {
+		set lineSeparator = $c(10)
+	} else {
+		set lineSeparator = ""
+	}
+	
+	set value = ..Adapter.Execute(request.Code, variable, lineSeparator)
 
 	do:variable'="" response.Variables.SetAt(value, variable)
 

isc/py/ens/OutboundAdapter.cls

@@ -10,16 +10,27 @@ Method OnTearDown() As %Status
 }
 
 /// Main method execute code and return variable.
-/// Both arguments are optional.
-/// code can be $c(10) or $c(13,10) delimited.
-Method Execute(code = "", variable = "") As %String
+/// All arguments are optional.
+/// code - Python code to execute
+/// variable - variable name, which value is returned
+/// lineSeparator - separate code into lines. Defaults to $c(10).
+Method Execute(code = "", variable = "", lineSeparator As %String = {$c(10)}) As %String
 {
-	set codeList=$lfs(code, $c(10))
+	if lineSeparator'="" {
+		set codeList=$lfs(code, lineSeparator)
+	} else {
+		set codeList=$lb(code)
+	}
 
-	for i=1:1:$ll(codeList)-1 {  
-		do ##class(isc.py.Callout).SimpleString($lg(codeList, i))
+	for i=1:1:$ll(codeList)-1 {
+		set line = $lg(codeList, i)
+		$$$TRACE(line)
+		do ##class(isc.py.Callout).SimpleString(line)
 	}
-	set result = ##class(isc.py.Callout).SimpleString($lg(codeList, $ll(codeList)), variable)
+	
+	set line = $lg(codeList, $ll(codeList))
+	$$$TRACE(line)
+	set result = ##class(isc.py.Callout).SimpleString(line, variable)
 	quit result
 }
 

isc/py/ens/Request.cls

@@ -8,6 +8,12 @@ Property Code As %VarString;
 /// Comma-separated list of variables to get in response message
 Property Variables As %String;
 
+/// Separate incoming message into lines for execution.
+/// $c(10) is used for line separation
+/// Note that it's NOT recommended to process whole message at once, 
+/// this feature is only for `def` and similar multi-line expressions processing.
+Property SeparateLines As %Boolean [ InitialExpression = {$$$YES} ];
+
 Storage Default
 {
 <Data name="RequestDefaultData">
@@ -18,6 +24,12 @@ Storage Default
 <Value name="2">
 <Value>Variables</Value>
 </Value>
+<Value name="3">
+<Value>LineSeparator</Value>
+</Value>
+<Value name="4">
+<Value>SeparateLines</Value>
+</Value>
 </Data>
 <DefaultData>RequestDefaultData</DefaultData>
 <Type>%Library.CacheStorage</Type>