added markdown id

src/htmlnode.py

@@ -0,0 +1,56 @@
+class HTMLNode:
+    def __init__(self, tag=None, value=None, children=None, props=None):
+        self.tag = tag
+        self.value = value
+        self.children = children or []
+        self.props = props or {}
+
+    def to_html(self):
+        raise NotImplementedError
+
+    def props_to_html(self):
+        if not self.props:
+            return ""
+        return " ".join([f'{key}="{value}"' for key, value in self.props.items()])
+    
+    def __repr__(self):
+        return f"Tag: {self.tag}, Val: {self.value}, Children: {self.children}, Props: {self.props}"
+
+class LeafNode(HTMLNode):
+    def __init__(self, value,tag=None):
+        super().__init__(tag,value,children=[])
+    
+    def to_html(self):
+        props_as_html = self.props_to_html()
+        
+        if not self.value:
+            raise ValueError("Value is missing")
+        
+        if not self.tag:
+            return f"{self.value}"
+        
+        if props_as_html == "":
+            return f"<{self.tag}>{self.value}</{self.tag}>"
+        else:
+            return f"<{self.tag} {props_as_html}>{self.value}</{self.tag}>"
+
+class ParentNode(HTMLNode):
+    def __init__(self, tag, children, props=None):
+        super().__init__(tag=tag, children=children, props=props or {})
+
+    def to_html(self):
+        if not self.tag:
+            raise ValueError("Tag cannot be None!")
+        if not self.children:
+            raise ValueError("Children are missing!")
+
+        props_html = self.props_to_html()
+        children_html = "".join(
+            child.to_html() if isinstance(child, HTMLNode) else child
+            for child in self.children
+        )
+
+        if props_html:
+            return f"<{self.tag} {props_html}>{children_html}</{self.tag}>"
+        else:
+            return f"<{self.tag}>{children_html}</{self.tag}>"