Function _parse_list_array

toon/decoder.py:309–380

Parse a list array.

(
    lines: List[str],
    start_idx: int,
    base_indent: int,
    count: int,
    opts: DecoderOptions,
    indent_size: int = 2
)

def _parse_list_array(
    lines: List[str],
    start_idx: int,
    base_indent: int,
    count: int,
    opts: DecoderOptions,
    indent_size: int = 2
) -> Tuple[List[Any], int]:
    """Parse a list array."""
    result = []
    i = start_idx
    expected_indent = base_indent + indent_size
    
    for _ in range(count):
        if i >= len(lines):
            break
        
        line = lines[i]
        indent = len(line) - len(line.lstrip())
        
        if indent < expected_indent:
            break
        
        if indent == expected_indent:
            # Check if it's a simple value or nested object
            stripped = line.strip()

            # Strip dash marker if present
            if stripped.startswith('- '):
                stripped = stripped[2:]  # Remove "- " prefix

            if COLON in stripped and not stripped.startswith(LEFT_BRACKET):
                # Nested object - collect all lines for this object
                obj_lines = [' ' * expected_indent + stripped]  # First line without dash
                i += 1

                # Collect subsequent lines that are part of this object (indent > expected_indent)
                while i < len(lines):
                    next_line = lines[i]
                    next_indent = len(next_line) - len(next_line.lstrip())

                    if next_indent <= expected_indent:
                        # Next item or end of array
                        break

                    # Normalize indentation: subtract indent_size spaces to align with first field
                    # Original: '    name: extra field' (4 spaces with indent_size=2)
                    # Becomes:  '  name: extra field' (2 spaces)
                    normalized_line = ' ' * expected_indent + next_line.lstrip()[0:] if next_indent >= expected_indent + indent_size else next_line
                    if next_indent >= expected_indent + indent_size:
                        normalized_line = ' ' * expected_indent + next_line[expected_indent + indent_size:]
                    else:
                        normalized_line = next_line
                    obj_lines.append(normalized_line)
                    i += 1

                # Parse collected lines as an object
                # All lines now have fields at expected_indent