return the expression as a string for diagnostics . concode_field_sep ObjectVector m_tokenQueue concode_elem_sep int MAXTOKENQUEUESIZE concode_elem_sep String m_currentPattern concode_elem_sep OpMapVector m_opMap concode_elem_sep int MAPINDEX_LENGTH concode_elem_sep int BLOCKTOKENQUEUESIZE concode_field_sep int getFirstPredicateOpPos concode_elem_sep int getFirstChildPosOfStep concode_elem_sep String getStepNS concode_elem_sep void shrink concode_elem_sep int getStepTestType concode_elem_sep ObjectVector getTokenQueue concode_elem_sep void setOp concode_elem_sep OpMapVector getOpMap concode_elem_sep int getOp concode_elem_sep void error concode_elem_sep int getArgLength concode_elem_sep String getPatternString concode_elem_sep int getNextStepPos concode_elem_sep Object getToken concode_elem_sep int getArgLengthOfStep concode_elem_sep String getStepLocalName concode_elem_sep int getTokenQueueSize concode_elem_sep int getNextOpPos concode_elem_sep int getNextOpPos concode_elem_sep int getFirstChildPos
String function ( ) { return m_currentPattern ; }