U  W[0ã@sdZdd„ZdS)z Logging utilities. cCs dd„}g}g}|D]€\}}|r,|d|k rn||krL|d|k rn| ¡q4n"|sd| d ||ƒ¡¡| |¡| dt|ƒ¡| d ||ƒ¡¡qd |¡S)a¨ Format a trace (that is, the contents of the C{log_trace} key of a log event) as a visual indication of the message's propagation through various observers. @param trace: the contents of the C{log_trace} key from an event. @type trace: object @return: A multi-line string with indentation and arrows indicating the flow of the message through various observers. @rtype: L{unicode} cSs&t|dƒrd ||j¡Sd |¡SdS)NÚnamez {0} ({1})z{0})ÚhasattrÚformatr)Úobj©rú6/usr/lib/python3/dist-packages/twisted/logger/_util.pyÚformatWithNames z#formatTrace..formatWithNameéÿÿÿÿz{0} z z-> {0} Ú)ÚpopÚappendrÚlenÚjoin)ZtracerÚresultZlineageÚparentZchildrrrÚ formatTrace s     rN)Ú__doc__rrrrrÚs