Refactoring example into multiple files

src/model/example/component_lexeme.py

@@ -0,0 +1,46 @@
+from model.data import Data
+
+class ComponentLexeme(Data):
+    def __init__(self, xml):
+        self.other_attributes = {}
+        
+        if xml.nodeName == "#text":
+            self.text = xml.data
+            self.role = None
+        else:
+            self.text = xml.textContent
+            self.role = xml.getAttribute("role")
+
+            for oth_attr in ["lexical_unit_lexeme_id", "slolex", "kol"]:
+                if xml.hasAttribute(oth_attr):
+                    self.other_attributes[oth_attr] = xml.getAttribute(oth_attr)
+        
+        self.text = self.text.strip()
+    
+    def isValid(self):
+        return len(self.text) > 0
+    
+    def export(self, doc):
+        if self.role is None:
+            return doc.createTextNode(self.text)
+        
+        result = doc.createElement("comp")
+        result.setAttribute("role", self.role)
+        result.textContent = self.text
+        
+        for key, value in self.other_attributes.items():
+            result.setAttribute(key, value)
+        
+        return result
+    
+    def view_style(self):
+        result = ".comp-text"
+        if self.role is not None:
+            result += ".comp-role"
+            if self.role == "headword":
+                result += ".comp-role-headword"
+                
+        return result
+        
+
+