o h@sdZddlZddlmZddlmZmZmZmZm Z m Z ddl m Z ddl mZeZedZe jfdd Zd d Zd d Ze jfddZe jdfddZddZdddZddZedkrdedSdS)zw Build a transition sequence from parse trees. Supports multiple transition schemes - TOP_DOWN and variants, IN_ORDER N)utils)Shift CompoundUnaryOpenConstituentCloseConstituentTransitionSchemeFinalize) read_trees)get_tqdmzstanza.constituency.trainerccsJ|r tVdS|rdS|tjurRt|jdkrRg}|s@t|jdkr@||j|jd}|s@t|jdks*t ||D]}|VqEt |VdS|tj ur|jg}t|jdkr|jds|jd}||jt|jdkr|jdrit |Vnt |jV|jD] }t ||D]}|Vqqt VdS)aj For tree (X A B C D), yield Open(X) A B C D Close The details are in how to treat unary transitions Three possibilities handled by this method: TOP_DOWN_UNARY: (Y (X ...)) -> Open(X) ... Close Unary(Y) TOP_DOWN_COMPOUND: (Y (X ...)) -> Open(Y, X) ... Close TOP_DOWN: (Y (X ...)) -> Open(Y) Open(X) ... Close Close Nr)is_preterminalris_leafrTOP_DOWN_UNARYlenchildrenappendlabelyield_top_down_sequencerTOP_DOWN_COMPOUNDrr)treetransition_schemelabels transitionchildri/var/www/html/env_mimamsha/lib/python3.10/site-packages/stanza/models/constituency/transition_sequence.pyrs<            rccs||r tVdS|rdSt|jdD]}|Vqt|jV|jddD] }t|D]}|Vq1q+tVdS)z; For tree (X A B C D), yield A Open(X) B C D Close Nrr )r rr yield_in_order_sequencerrrr)rrrrrrr;s   rc#stfddt|jdkrtdt|jdkr%td||jdD]}|Vq,t|jVdS)Nc3s"|rdSg}t|jdkr*|s*||j|jd}t|jdkr*|r|r?tVt|dkr=t|VdS|jdD]}|VqFtj urXt |jVn ||jt |V|jddD] }|D]}|Vqpqjt Vtj urt|dkrt|VdSdSdS)Nr r) r rrr rrrrrIN_ORDER_UNARYrr)rrrrhelperrrrrTs6        z0yield_in_order_compound_sequence..helperrz Cannot build {} on an empty treer zsz"build_treebank..csg|]}t|qSr)r'r)r+rrr,sr)treesrr(rr+rbuild_treebanksr.cCs"t}|D]}||qt|S)z_ Given a list of transition lists, combine them all into a list of unique transitions. )setupdatesorted)transition_lists transitions trans_listrrrall_transitionss r5cCsRt|dkr ggfStd|ttjkrt|}t|||}t|}||fS)z Wrap both build_treebank and all_transitions, possibly with a tqdm Converts trees to a list of sequences, then returns the list of known transitions rz Building %s transition sequences) rloggerinfogetEffectiveLevelloggingINFOtqdmr.r5)r- treebank_namerr( sequencesr3rrrconvert_trees_to_sequencess   r>cCs,d}t|d}t|t|}t|dS)z9 Convert a sample tree and print its transitions z[( (SBARQ (WHNP (WP Who)) (SQ (VP (VBZ sits) (PP (IN in) (NP (DT this) (NN seat))))) (. ?)))rN)r printr')textrr3rrrmains   rA__main__)F)__doc__r9stanza.models.commonr,stanza.models.constituency.parse_transitionsrrrrrr&stanza.models.constituency.tree_readerr stanza.utils.get_tqdmr r; getLoggerr6rrrr#r'r.r5r>rA__name__rrrrs&     ),