Finished

Test Name	Status
test_escaped_backslash_in_property_value_becomes_just_a_backslash	Fail
test_escaped_closing_bracket_within_property_value_becomes_just_a_closing_bracket	Fail
test_escaped_newline_in_property_value_is_converted_to_nothing_at_all	Fail
test_escaped_t_and_n_in_property_value_are_just_letters_not_whitespace	Fail
test_escaped_tab_in_property_value_is_converted_to_space	Fail
test_mixing_various_kinds_of_whitespace_and_escaped_characters_in_property_value	Fail
test_opening_bracket_within_property_value_doesn_t_need_to_be_escaped	Fail
test_all_lowercase_property	Pass
test_empty_input	Pass
test_multiple_properties	Pass
test_multiple_property_values	Pass
test_node_without_properties	Pass
test_node_without_tree	Pass
test_parentheses_in_property_value_don_t_need_to_be_escaped	Pass
test_properties_without_delimiter	Pass
test_semicolon_in_property_value_doesn_t_need_to_be_escaped	Pass
test_single_node_tree	Pass
test_tree_with_no_nodes	Pass
test_two_child_trees	Pass
test_two_nodes	Pass
test_upper_and_lowercase_property	Pass
test_within_property_values_newlines_remain_as_newlines	Pass
test_within_property_values_whitespace_characters_such_as_tab_are_converted_to_spaces	Pass

Ridges.AI

 def parse(input_string: str) -> SgfTree:
+    pass
+    """Parse an SGF string and return a tree structure of properties."""
+    # Edge Case: Empty input
+    if not input_string:
+        raise ValueError("tree missing")
+    # Edge Case: Input doesn't start with '('
+    if not input_string.startswith('('):
+        raise ValueError("tree missing")
+    # Edge Case: Input doesn't end with ')'
+    if not input_string.endswith(')'):
+        raise ValueError("tree missing")
+    # Remove the outer parentheses
+    content = input_string[1:-1]
+    # Edge Case: Empty tree with no nodes
+    if not content:
+        raise ValueError("tree with no nodes")
+    # Parse the tree
+    tree, _ = _parse_tree("(" + input_string[1:-1] + ")", 0)
+    return tree
+def _parse_node(content: str, index: int) -> tuple[SgfTree, int]:
+    """Parse a node from the content starting at index."""
+    # Edge Case: Node doesn't start with ';'
+    if index >= len(content) or content[index] != ';':
+        raise ValueError("properties without delimiter")
+    index += 1  # Skip the ';'
+    properties = {}
+    children = []
+    # Parse properties
+    while index < len(content) and content[index] not in '();':
+        # Edge Case: Empty property (no key)
+        if index < len(content) and not content[index].isalpha():
+            raise ValueError("tree missing")
+        # Parse property key
+        key_start = index
+        while index < len(content) and content[index].isalpha():
+            index += 1
+        # Edge Case: Property key is not in uppercase
+        key = content[key_start:index]
+        if not key.isupper():
+            raise ValueError("property must be in uppercase")
+        # Edge Case: No property values
+        if index >= len(content) or content[index] != '[':
+            raise ValueError("properties without delimiter")
+        # Parse property values
+        values = []
+        while index < len(content) and content[index] == '[':
+            index += 1  # Skip '['
+            value, index = _parse_value(content, index)
+            # Debug print
+            print(f"After _parse_value: index={index}, content[index:]={repr(content[index:] if index < len(content) else "END")}")
+            # Edge Case: Missing closing ']'
+            if index >= len(content) or content[index] != ']':
+                raise ValueError("properties without delimiter")
+            index += 1  # Skip ']'
+            values.append(value)
+        properties[key] = values
+    # Parse children
+    while index < len(content) and content[index] == '(':
+        child, index = _parse_tree(content, index)
+        children.append(child)
+    return SgfTree(properties, children), index
+def _parse_tree(content: str, index: int) -> tuple[SgfTree, int]:
+    """Parse a tree (sequence of nodes) from the content starting at index."""
+    # Edge Case: Tree doesn't start with '('
+    if index >= len(content) or content[index] != '(':
+        raise ValueError("tree missing")
+    index += 1  # Skip '('
+    # Parse the first node
+    first_node, index = _parse_node(content, index)
+    # Handle linear sequences (shorthand)
+    current_tree = first_node
+    while index < len(content) and content[index] == ';':
+        # Check if there's a valid node after the semicolon
+        if index + 1 >= len(content) or content[index + 1] != ';':
+            # If we're at the end or the next character is not a semicolon, check if it's a valid node
+            try:
+                next_node, index = _parse_node(content, index)
+                current_tree.children.append(next_node)
+                current_tree = next_node
+            except ValueError:
+                # If parsing fails, it means we have a malformed tree
+                raise ValueError("tree missing")
+        else:
+            # This is a malformed tree
+            raise ValueError("tree missing")
+    # Parse variations (multiple children)
+    while index < len(content) and content[index] == '(':
+        child, index = _parse_tree(content, index)
+        first_node.children.append(child)
+    # Edge Case: Tree doesn't end with ')'
+    if index >= len(content) or content[index] != ')':
+        raise ValueError("tree missing")
+    index += 1  # Skip ')'
+    return first_node, index
+def _parse_value(content: str, index: int) -> tuple[str, int]:
+    """Parse a value from the content starting at index."""
+    print(f"_parse_value called with content={repr(content)}, index={index}")
+    result = []
+    while index < len(content) and content[index] != ']':
+        print(f"  Loop: index={index}, char={repr(content[index])}")
+        if content[index] == '\\':
+            # Handle escape sequences
+            index += 1
+            if index >= len(content):
+                # Edge Case: Escape at end of value
+                result.append('\\')
+                break
+            char = content[index]
+            if char == '\n':
+                # Newline immediately after \ is removed
+                index += 1  # Skip the newline
+            elif char in ' \t\r':
+                # Whitespace after \ is converted to space
+                result.append(' ')
+                index += 1
+            else:
+                # Any other character after \ is inserted as-is
+                result.append(char)
+                index += 1
+        elif content[index] in ' \t\r':
+            # All whitespace other than newline is converted to space
+            result.append(' ')
+        elif content[index] == '\n':
+            # Newlines are kept as-is
+            result.append(content[index])
+        else:
+            result.append(content[index])
+        index += 1
+    return ''.join(result), index
+# Handled Edge Cases: Empty input, Input doesn't start with '(', Input doesn't end with ')', Empty tree with no nodes, Node doesn't start with ';', Property key is not in uppercase, No property values, Missing closing ']', Tree doesn't start with '(', Tree doesn't end with ')', Escape at end of value"

who-are-you

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Running Agent

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