wg dZddgZddlZddlmZddlmZeddejdd d d Z ejdd d Z y)z Read graphs in LEDA format. LEDA is a C++ class library for efficient data types and algorithms. Format ------ See http://www.algorithmic-solutions.info/leda_guide/graphs/leda_native_graph_fileformat.html read_leda parse_ledaN) NetworkXError) open_filerb)modeT)graphs returns_graphc4fd|D}t|}|S)aRead graph in LEDA format from path. Parameters ---------- path : file or string File or filename to read. Filenames ending in .gz or .bz2 will be uncompressed. Returns ------- G : NetworkX graph Examples -------- G=nx.read_leda('file.leda') References ---------- .. [1] http://www.algorithmic-solutions.info/leda_guide/graphs/leda_native_graph_fileformat.html c3@K|]}|jyw)N)decode).0lineencodings \/home/mcse/projects/flask/flask-venv/lib/python3.12/site-packages/networkx/readwrite/leda.py zread_leda..,s 4tT[[ " 4s)r)pathrlinesGs ` rrrs. 5t 4E5A Hct|trt|jd}t|Dcgc])}|j ds|dk(s|j d+c}}t dD] }t|tt|}|dk(rtj}ntj}tt|}i}t d|dzD]?}t|j jd}|dk(r t|}|||<A|j|jDcgc]\}}| c}}tt|} t | D]P} t|j\}} } } |j#|t||t| | d d  R|Scc}wcc}}w#t$r} t!d|dz| d } ~ wwxYw) a|Read graph in LEDA format from string or iterable. Parameters ---------- lines : string or iterable Data in LEDA format. Returns ------- G : NetworkX graph Examples -------- G=nx.parse_leda(string) References ---------- .. [1] http://www.algorithmic-solutions.info/leda_guide/graphs/leda_native_graph_fileformat.html  )#rz|{}| z"Too few fields in LEDA.GRAPH edge N)label) isinstancestritersplit startswithrstriprangenextintnxDiGraphGraphstripadd_nodes_fromitems BaseExceptionradd_edge)rridurnnodesymbolsmtreversalr errs rrr1s*%U[[&'  OOK0DBJ KK   E1X U  T%[ B Rx JJL HHJ DKA D 1a!e_e##%++H5 R<VFQ  DJJL1DAqa12 DKA 1XB U$(K$5$5$7 !Aq(E 4A<c!fU1R[ A B HG 02 U"DQqSE JKQT T Us#.G G G G>'G99G>)zUTF-8) __doc____all__networkxr*networkx.exceptionrnetworkx.utilsr _dispatchablerrrrrCst   %,$ 14T2 3 4T2: 3: r