U d/e\ @sdZddlZddlZddlmZddlmZddlmZddlmZd d gZ e d Z ej dd dd defe ejeeejee e d dd ZdS)z+Pipe DOT source code through ``unflatten``.N)DEFAULT_ENCODING)_tools) exceptions)executeUNFLATTEN_BINARY unflatten)Zsupported_numberF)sourcestaggerfanoutchainencodingreturncCsr|r|dkrtdtg}|dk r4|dt|g7}|rB|d|dk rZ|dt|g7}tj|||dd}|jS)a!Return DOT ``source`` piped through ``unflatten`` preprocessor as string. Args: source: DOT source to process (improve layout aspect ratio). stagger: Stagger the minimum length of leaf edges between 1 and this small integer. fanout: Fanout nodes with indegree = outdegree = 1 when staggering (requires ``stagger``). chain: Form disconnected nodes into chains of up to this many nodes. encoding: Encoding to encode unflatten stdin and decode its stdout. Returns: Decoded stdout of the Graphviz unflatten command. Raises: graphviz.RequiredArgumentError: If ``fanout`` is given but no ``stagger``. graphviz.ExecutableNotFound: If the Graphviz 'unflatten' executable is not found. graphviz.CalledProcessError: If the returncode (exit status) of the unflattening 'unflatten' subprocess is non-zero. See also: Upstream documentation: https://www.graphviz.org/pdf/unflatten.1.pdf Nzfanout given without staggerz-lz-fz-cT)inputrcapture_output)rZRequiredArgumentErrorrstrappendrZ run_checkstdout)r r r r rcmdprocrA/tmp/pip-unpacked-wheel-n8ok7rre/graphviz/backend/unflattening.pyr s!    )__doc__pathlibtypingrrrrr__all__PathrZdeprecate_positional_argsrOptionalintboolr rrrrs(