View file File name : yacc.cpython-36.pyc Content :3 .[�`F � @ s d dl Z d dlZd dlZd dlZd dlZd dlZd dlZdZdZ dZ dZ dZ dZ dZd Zd Zd Zejd dk rteZneZejZG d d � d e�ZG d d� de�ZG dd� de�Z dd� Z dd� Z da da da!dZ"dd� Z#dd� Z$dd� Z%d d � Z&G d d � d �Z'G d d!� d!�Z(G d"d#� d#�Z)e j*d$�Z+G d%d&� d&e�Z,G d'd(� d(e�Z-G d)d*� d*e�Z.d+d,� Z/G d-d.� d.e �Z0G d/d0� d0e�Z1G d1d2� d2e �Z2G d3d4� d4e�Z3d5d6� Z4d7d8� Z5G d9d:� d:e �Z6G d;d<� d<e3�Z7d=d>� Z8d?d@� Z9G dAdB� dBe�Z:de de ddd de ddddf dCdD�Z;dS )E� Nz3.9z3.8Tz parser.out�parsetab�LALR� F�( c @ s4 e Zd Zdd� Zdd� ZeZdd� Zdd� ZeZd S ) � PlyLoggerc C s || _ d S )N)�f)�selfr � r �/usr/lib/python3.6/yacc.py�__init__n s zPlyLogger.__init__c O s | j j|| d � d S )N� )r �write)r �msg�args�kwargsr r r �debugq s zPlyLogger.debugc O s | j jd|| d � d S )Nz WARNING: r )r r )r r r r r r r �warningv s zPlyLogger.warningc O s | j jd|| d � d S )NzERROR: r )r r )r r r r r r r �errory s zPlyLogger.errorN) �__name__� __module__� __qualname__r r �infor r Zcriticalr r r r r m s r c @ s e Zd Zdd� Zdd� ZdS )� NullLoggerc C s | S )Nr )r �namer r r �__getattribute__� s zNullLogger.__getattribute__c O s | S )Nr )r r r r r r �__call__� s zNullLogger.__call__N)r r r r r r r r r r s r c @ s e Zd ZdS )� YaccErrorN)r r r r r r r r � s r c C sP t | �}d|krt |�}t|�tkr4|d t� d }dt| �jt| �|f }|S )Nr z ...z<%s @ 0x%x> (%s))�repr�len� resultlimit�typer �id)�r�repr_str�resultr r r � format_result� s r% c C sB t | �}d|krt |�}t|�dk r(|S dt| �jt| �f S d S )Nr � z <%s @ 0x%x>)r r r r r! )r" r# r r r �format_stack_entry� s r' a PLY: Don't use global functions errok(), token(), and restart() in p_error(). Instead, invoke the methods on the associated parser instance: def p_error(p): ... # Use parser.errok(), parser.token(), parser.restart() ... parser = yacc.yacc() c C s t jt� t� S )N)�warnings�warn�_warnmsg�_errokr r r r �errok� s r, c C s t jt� t� S )N)r( r) r* �_restartr r r r �restart� s r. c C s t jt� t� S )N)r( r) r* �_tokenr r r r �token� s r0 c C s> |j a|ja|ja| |�}y bbbW n tk r8 Y nX |S )N)r, r+ r0 r/ r. r- � NameError)� errorfuncr0 �parserr" r r r �call_errorfunc� s r4 c @ s e Zd Zdd� Zdd� ZdS )� YaccSymbolc C s | j S )N)r )r r r r �__str__� s zYaccSymbol.__str__c C s t | �S )N)�str)r r r r �__repr__� s zYaccSymbol.__repr__N)r r r r6 r8 r r r r r5 � s r5 c @ sf e Zd Zddd�Zdd� Zdd� Zdd � Zd d � Zd d � Zdd� Z dd� Z dd� Z dd� Z dd� Z dS )�YaccProductionNc C s || _ || _d | _d | _d S )N)�slice�stack�lexerr3 )r �sr; r r r r � s zYaccProduction.__init__c C sB t |t�r dd� | j| D �S |dkr2| j| jS | j| jS d S )Nc S s g | ] }|j �qS r )�value)�.0r= r r r � <listcomp>� s z.YaccProduction.__getitem__.<locals>.<listcomp>r )� isinstancer: r> r; )r �nr r r � __getitem__� s zYaccProduction.__getitem__c C s || j | _d S )N)r: r> )r rB �vr r r � __setitem__� s zYaccProduction.__setitem__c C s dd� | j ||� D �S )Nc S s g | ] }|j �qS r )r> )r? r= r r r r@ � s z/YaccProduction.__getslice__.<locals>.<listcomp>)r: )r �i�jr r r � __getslice__� s zYaccProduction.__getslice__c C s t | j�S )N)r r: )r r r r �__len__� s zYaccProduction.__len__c C s t | j| dd�S )N�linenor )�getattrr: )r rB r r r rJ s zYaccProduction.linenoc C s || j | _d S )N)r: rJ )r rB rJ r r r � set_lineno s zYaccProduction.set_linenoc C s, t | j| dd�}t | j| d|�}||fS )NrJ r � endlineno)rK r: )r rB � startlineZendliner r r �linespan s zYaccProduction.linespanc C s t | j| dd�S )N�lexposr )rK r: )r rB r r r rP s zYaccProduction.lexposc C s, t | j| dd�}t | j| d|�}||fS )NrP r � endlexpos)rK r: )r rB �startpos�endposr r r �lexspan s zYaccProduction.lexspanc C s t �d S )N)� SyntaxError)r r r r r s zYaccProduction.error)N)r r r r rC rE rH rI rJ rL rO rP rT r r r r r r9 � s r9 c @ s\ e Zd Zdd� Zdd� Zdd� Zdd� Zd d � Zdd d�Zddd�Z ddd�Z ddd�Z d S )�LRParserc C s0 |j | _|j| _|j| _|| _| j� d| _d S )NT) �lr_productions� productions� lr_action�action�lr_goto�gotor2 �set_defaulted_states�errorok)r ZlrtabZerrorfr r r r s zLRParser.__init__c C s d| _ d S )NT)r^ )r r r r r, & s zLRParser.errokc C s@ | j d d �= | jd d �= t� }d|_| jj|� | j jd� d S )Nz$endr )� statestack�symstackr5 r �append)r �symr r r r. ) s zLRParser.restartc C sT i | _ xH| jj� D ]:\}}t|j� �}t|�dkr|d dk r|d | j |< qW d S )N� r )�defaulted_statesrZ �items�list�valuesr )r �state�actionsZrulesr r r r] 9 s z LRParser.set_defaulted_statesc C s i | _ d S )N)rd )r r r r �disable_defaulted_states@ s z!LRParser.disable_defaulted_statesNFc C sZ |st r.t|t�r ttj�}| j|||||�S |rD| j|||||�S | j|||||�S d S )N) � yaccdevelrA �intr �sys�stderr� parsedebug�parseopt�parseopt_notrack)r �inputr< r �tracking� tokenfuncr r r �parseC s zLRParser.parsec C s� d }g }| j }| j} | j} | j} td �} d} |jd� |sLddlm} |j}|| _| | _ |d k rj|j |� |d krz|j }n|}|| _ g }|| _ g }|| _ || _d }|jd� t� }d|_|j|� d}�x�|jd� |jd|� || k�r.|�s|� s�|� }n|j� }|�st� }d|_|j}|| j|�}n| | }|jd|| � |jd d d jd d � |D �dd � �t|�f j� � |d k �r�|dk�r�|j|� |}|jd|� |j|� d }| r�| d8 } q�|dk �rN| | }|j}|j}t� }||_d |_|�rB|jd|jddjdd � || d � D �� d | |d%| | � n |jd|jg | |d& | � |�r�|| d d � }||d< |�r�|d }|j|_|j |_ |d' }t |d|j�|_ t |d|j �|_ || _ yd|| d �= || _!|j"| � || d �= |jdt#| d �� |j|� | |d( | }|j|� W q� t$k �r� |j|� |j%|dd)� � |j� |d* }d|_d|_|}t&} d| _'Y q�X q�n�|�r�|j|_|j |_ |g}|| _ yL|| _!|j"| � |jdt#| d �� |j|� | |d+ | }|j|� W q� t$k �rJ |j|� |j� |d, }d|_d|_|}t&} d| _'Y q�X q�|dk�r�|d- } t | dd �} |jdt#| �� |jd� | S |d k�r�|j(d d d jd d � |D �dd � �t|�f j� � | dk�s�| j'�r�t&} d| _'|}|jdk�r�d }| j)�rB|�rt*|d � �r||_|| _!t+| j)|| �} | j'�r�| }d }q�n`|�r�t*|d ��r\|j} nd} | �r~t,j-j.d | |jf � nt,j-j.d!|j � nt,j-j.d"� d S nt&} t|�dk�r�|jdk�r�d }d }d}|d d �= q�|jdk�r�d S |jdk�r�|d. }|jdk�r6|�r0t |d |j�|_ t |d#|j �|_ d }q�t� }d|_t*|d ��r\|j |_|_ t*|d#��rv|j |_ |_ ||_|j|� |}q�|j� }|�r�|j|_|j |_ |j� |d/ }q�t/d$��q�W d S )0Nr zPLY: PARSE DEBUG STARTrc )�lexz$end� z State : %sz#Defaulted state %s: Reduce using %dz Stack : %sz%s . %s� c S s g | ] }|j �qS r )r )r? �xxr r r r@ � s z'LRParser.parsedebug.<locals>.<listcomp>z Action : Shift and goto state %sz3Action : Reduce rule [%s] with %s and goto state %d�[�,c S s g | ]}t |j��qS r )r' r> )r? Z_vr r r r@ � s �]rM rQ z Result : %sr Fr> zDone : Returning %szPLY: PARSE DEBUG ENDz Error : %sc S s g | ] }|j �qS r )r )r? ry r r r r@ B s r< rJ z(yacc: Syntax error at line %d, token=%s z yacc: Syntax error, token=%sz yacc: Parse error in input. EOF rP z yacc: internal parser error!!! ���r} r} r} r} r} r} r} r} r} r} )0rZ r\ rX rd r9 r rw rv r< r3 rr r0 r_ r` r; ra r5 r r �pop�get�joinr7 �lstripr r r> rJ rP rK rM rQ r: rh �callabler% rU �extend� error_countr^ r r2 �hasattrr4 rm rn r � RuntimeError) r rr r< r rs rt � lookahead�lookaheadstackri r\ �prodrd �pslice� errorcountrv � get_tokenr_ r` �errtokenrb rh �ltype�t�p�pname�plen�targ�t1rB r$ �tokrJ r r r ro \ s~ . $ . zLRParser.parsedebugc C sv d }g }| j }| j} | j} | j} td �} d} |sBddlm} |j}|| _| | _|d k r`|j |� |d krp|j }n|}|| _ g }|| _ g }|| _ || _ d }|jd� t� }d|_|j|� d}�x�|| k�r|s�|s�|� }n|j� }|s�t� }d|_|j}|| j|�}n| | }|d k �rh|dk�rN|j|� |}|j|� d }| r�| d8 } q�|dk �rF| | }|j}|j}t� }||_d |_|�r�|| d d � }||d< |�r�|d }|j|_|j|_|d }t|d|j�|_t|d|j�|_|| _yP|| d �= || _ |j | � || d �= |j|� | |d | }|j|� W q� t k �r� |j|� |j |dd� � |j� |d }d|_d|_|}t } d| _!Y q�X q�n�|�r�|j|_|j|_|g}|| _y8|| _ |j | � |j|� | |d | }|j|� W q� t k �rB |j|� |j� |d }d|_d|_|}t } d| _!Y q�X q�|dk�rh|d } t| d d �} | S |d k�rf| dk�s�| j!�rNt } d| _!|}|jdk�r�d }| j"�r�|�r�t#|d � �r�||_|| _ t$| j"|| �} | j!�rL| }d }q�n`|�r<t#|d ��r|j} nd} | �r(t%j&j'd | |jf � nt%j&j'd |j � nt%j&j'd� d S nt } t|�dk�r�|jdk�r�d }d }d}|d d �= q�|jdk�r�d S |jdk�r6|d }|jdk�r�|�r�t|d |j�|_t|d|j�|_d }q�t� }d|_t#|d ��r|j |_|_t#|d��r |j |_|_||_|j|� |}q�|j� }|�rT|j|_|j|_|j� |d }q�t(d��q�W d S )Nr rc )rv z$endrM rQ r Fr> r< rJ z(yacc: Syntax error at line %d, token=%s z yacc: Syntax error, token=%sz yacc: Parse error in input. EOF rP z yacc: internal parser error!!! r} r} r} r} r} r} r} r} r} ))rZ r\ rX rd r9 rw rv r< r3 rr r0 r_ r` r; ra r5 r r~ r r r r> rJ rP rK rM rQ r: rh r� rU r� r� r^ r2 r� r4 rm rn r r� ) r rr r< r rs rt r� r� ri r\ r� rd r� r� rv r� r_ r` r� rb rh r� r� r� r� r� r� r� rB r$ r� rJ r r r rp � sX zLRParser.parseoptc C s� d }g }| j }| j} | j} | j} td �} d} |sBddlm} |j}|| _| | _|d k r`|j |� |d krp|j }n|}|| _ g }|| _ g }|| _ || _ d }|jd� t� }d|_|j|� d}�x|| k�r|s�|s�|� }n|j� }|s�t� }d|_|j}|| j|�}n| | }|d k �r |dk�rN|j|� |}|j|� d }| r�| d8 } q�|dk �r�| | }|j}|j}t� }||_d |_|�rX|| d d � }||d< || _yP|| d �= || _|j| � || d �= |j|� | |d | }|j|� W q� tk �rR |j|� |j|dd� � |j� |d }d|_d|_|}t} d| _ Y q�X q�n�|g}|| _y8|| _|j| � |j|� | |d | }|j|� W q� tk �r� |j|� |j� |d }d|_d|_|}t} d| _ Y q�X q�|dk�r |d }t |dd �} | S |d k�r�| dk�s(| j �r�t} d| _ |}|jdk�rFd }| j �r�|�rht |d� �rh||_|| _t | j || �} | j �r�| }d }q�n`|�r�t |d ��r�|j!} nd} | �r�t"j#j$d | |jf � nt"j#j$d |j � nt"j#j$d � d S nt} t|�dk�r(|jdk�r(d }d }d}|d d �= q�|jdk�r8d S |jdk�r�|d }|jdk�r^d }q�t� }d|_t |d ��r�|j! |_!|_%t |d ��r�|j& |_&|_'||_|j|� |}q�|j� }|j� |d }q�t(d��q�W d S )Nr rc )rv z$endr Fr> r< rJ z(yacc: Syntax error at line %d, token=%s z yacc: Syntax error, token=%sz yacc: Parse error in input. EOF rP z yacc: internal parser error!!! r} r} r} r} r} r} r} r} ))rZ r\ rX rd r9 rw rv r< r3 rr r0 r_ r` r; ra r5 r r~ r r r r> r: rh r� rU r� r� r^ rK r2 r� r4 rJ rm rn r rM rP rQ r� ) r rr r< r rs rt r� r� ri r\ r� rd r� r� rv r� r_ r` r� rb rh r� r� r� r� r� r� rB r$ r� rJ r r r rq � s8 zLRParser.parseopt_notrack)NNFFN)NNFFN)NNFFN)NNFFN) r r r r r, r. r] rj ru ro rp rq r r r r rV s ] 4rV z^[a-zA-Z0-9_-]+$c @ sR e Zd ZdZddd�Zdd� Zd d � Zd d � Zd d� Zdd� Z dd� Z dd� Z dS )� Productionr �rightNrw c C s� || _ t|�| _|| _|| _d | _|| _|| _|| _t | j�| _ g | _ x$| jD ]}|| j krN| j j |� qNW g | _ d | _ | jr�d| j dj| j�f | _n d| j | _d S )Nz%s -> %srx z %s -> <empty>)r �tupler� �number�funcr� �file�line�precr �usymsra �lr_items�lr_nextr� r7 ) r r� r r� � precedencer� r� r� r= r r r r s$ zProduction.__init__c C s | j S )N)r7 )r r r r r6 = s zProduction.__str__c C s dt | � d S )Nz Production(�))r7 )r r r r r8 @ s zProduction.__repr__c C s t | j�S )N)r r� )r r r r rI C s zProduction.__len__c C s dS )Nrc r )r r r r � __nonzero__F s zProduction.__nonzero__c C s | j | S )N)r� )r �indexr r r rC I s zProduction.__getitem__c C s� |t | j�krd S t| |�}yt|j|d |_W n ttfk rR g |_Y nX y|j|d |_W n tk r� d |_Y nX |S )Nrc )r r� �LRItem� Prodnames�lr_after� IndexError�KeyError� lr_before)r rB r� r r r �lr_itemM s zProduction.lr_itemc C s | j r|| j | _d S )N)r� r� )r �pdictr r r �bind] s zProduction.bind�r� r )r� Nrw r ) r r r �reducedr r6 r8 rI r� rC r� r� r r r r r� s r� c @ s, e Zd Zdd� Zdd� Zdd� Zdd� Zd S ) �MiniProductionc C s. || _ || _|| _d | _|| _|| _|| _d S )N)r r r� r� r� r� r7 )r r7 r r r� r� r� r r r r f s zMiniProduction.__init__c C s | j S )N)r7 )r r r r r6 o s zMiniProduction.__str__c C s d| j S )NzMiniProduction(%s))r7 )r r r r r8 r s zMiniProduction.__repr__c C s | j r|| j | _d S )N)r� r� )r r� r r r r� v s zMiniProduction.bindN)r r r r r6 r8 r� r r r r r� e s r� c @ s$ e Zd Zdd� Zdd� Zdd� ZdS )r� c C sZ |j | _ t|j�| _|j| _|| _i | _| jj|d� t| j�| _t| j�| _|j | _ d S )N�.) r rf r� r� �lr_index� lookaheads�insertr� r r� )r r� rB r r r r � s zLRItem.__init__c C s, | j r d| jdj| j �f }n d| j }|S )Nz%s -> %srx z %s -> <empty>)r� r r� )r r= r r r r6 � s zLRItem.__str__c C s dt | � d S )NzLRItem(r� )r7 )r r r r r8 � s zLRItem.__repr__N)r r r r r6 r8 r r r r r� � s r� c C s: t | �d }x(|dkr4| | |kr*| | S |d8 }qW d S )Nrc r )r )Zsymbols� terminalsrF r r r �rightmost_terminal� s r� c @ s e Zd ZdS )� GrammarErrorN)r r r r r r r r� � s r� c @ s� e Zd Zdd� Zdd� Zdd� Zdd� Zd$d d �Zd%dd�Zdd� Z dd� Z dd� Z dd� Z dd� Z dd� Zd d � Zd d � Zd&d d!�Zd"d#� Zd S )'�Grammarc C sf d g| _ i | _i | _i | _x|D ]}g | j|< q W g | jd< i | _i | _i | _i | _t� | _ d | _ d S )Nr ) � Productionsr� �Prodmap� Terminals� Nonterminals�First�Follow� Precedence�set�UsedPrecedence�Start)r r� �termr r r r � s zGrammar.__init__c C s t | j�S )N)r r� )r r r r rI � s zGrammar.__len__c C s | j | S )N)r� )r r� r r r rC � s zGrammar.__getitem__c C sL | j d gkstd��|| jkr*td| ��|dkr:td��||f| j|< d S )Nz2Must call set_precedence() before add_production()z,Precedence already specified for terminal %r�leftr� �nonassocz:Associativity must be one of 'left','right', or 'nonassoc')r� r� r� )r� �AssertionErrorr� r� )r r� �assoc�levelr r r �set_precedence� s zGrammar.set_precedenceNrw r c C s� || j kr td|||f ��|dkr6td|||f ��tj|�sRtd|||f ��x�t|�D ]�\}}|d dkr�yJt|�}t|�dkr�td||||f ��|| j kr�g | j |< |||< w\W n tk r� Y nX tj|� r\|d kr\td ||||f ��q\W d |k�r�|d d k�r$td ||f ��|d d k�rBtd ||f ��|d } | jj | �} | �sptd||| f ��n | j j | � |dd �= nt || j �} | jj | d�} d||f } | | j k�r�| j | } td||| f d| j| jf ��t| j�} || jk�rg | j|< xR|D ]J}|| j k�r.| j | j| � n&|| jk�rDg | j|< | j| j| � �q W t| ||| |||�}| jj|� || j | < y| j| j|� W n" tk �r� |g| j|< Y nX d S )Nz7%s:%d: Illegal rule name %r. 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Nothing follows %%prec� zH%s:%d: Syntax error. %%prec can only appear at the end of a grammar rulez/%s:%d: Nothing known about the precedence of %rr� z%s -> %sz%s:%d: Duplicate rule %s. z Previous definition at %s:%dr} ���r} r� )r� r )r� r� �_is_identifier�match� enumerate�evalr rU r� r r� �addr� r� r� r� r� r� ra r� r� r� )r �prodname�symsr� r� r� rB r= �cZprecnameZprodprec�map�mZpnumberr� r� r r r �add_production sp zGrammar.add_productionc C sT |s| j d j}|| jkr&td| ��tdd|g�| j d< | j| jd� || _d S )Nrc zstart symbol %s undefinedr zS')r� r r� r� r� ra r� )r �startr r r � set_starta s zGrammar.set_startc s> � ��fdd�� t � �� �jd jd � �fdd��jD �S )Nc sJ | �kr d S �j | � x.�jj| g �D ] }x|jD ] }� |� q2W q&W d S )N)r� r� r r� )r= r� r" )�mark_reachable_from� reachabler r r r� t s z5Grammar.find_unreachable.<locals>.mark_reachable_fromr c s g | ]}|� kr|�qS r r )r? r= )r� r r r@ ~ s z,Grammar.find_unreachable.<locals>.<listcomp>)r� r� r� r� )r r )r� r� r r �find_unreachableq s zGrammar.find_unreachablec C s� i }x| j D ] }d||< q W d|d< x| jD ] }d||< q,W xpd}x`| jj� D ]R\}}xH|D ]@}x |jD ]}|| shd}P qhW d}|r\|| s�d||< d}P q\W qNW |s>P q>W g } x@|j� D ]4\}} | s�|| jkr�|| j kr�|dkr�q�| j|� q�W | S )NTz$endFr )r� r� r� re r� ra ) r Z terminatesr� rB � some_changeZplr� r= Z p_terminates�infiniter� r r r �infinite_cycles� s: zGrammar.infinite_cyclesc C sX g }xN| j D ]D}|sq x8|jD ].}|| jkr || jkr |dkr |j||f� q W q W |S )Nr )r� r� r� r� ra )r r$ r� r= r r r �undefined_symbols� s zGrammar.undefined_symbolsc C s8 g }x.| j j� D ] \}}|dkr| r|j|� qW |S )Nr )r� re ra )r Z unused_tokr= rD r r r �unused_terminals� s zGrammar.unused_terminalsc C s< g }x2| j j� D ]$\}}|s| j| d }|j|� qW |S )Nr )r� re r� ra )r Z unused_prodr= rD r� r r r � unused_rules� s zGrammar.unused_rulesc C sD g }x:| j D ]0}|| jkp"|| jks |j|| j | d f� q W |S )Nr )r� r� r� ra )r ZunusedZtermnamer r r �unused_precedence� s zGrammar.unused_precedencec C s` g }xV|D ]D}d}x2| j | D ]$}|dkr0d}q ||kr |j|� q W |rLq P q W |jd� |S )NFz<empty>T)r� ra )r Zbetar$ �xZx_produces_emptyr r r r �_first s zGrammar._firstc C s� | j r | j S x| jD ]}|g| j |< qW dg| j d< x| jD ]}g | j |< q<W xjd}xZ| jD ]P}xJ| j| D ]<}x6| j|j�D ]&}|| j | kr~| j | j|� d}q~W qlW q\W |sPP qPW | j S )Nz$endFT)r� r� r� r� r� r� ra )r r� rB r� r� r r r r � compute_first, s$ zGrammar.compute_firstc C sV | j r | j S | js| j� x| jD ]}g | j |< q"W |sD| jd j}dg| j |< � x�d}x�| jdd � D ]�}x�t|j�D ]�\}}|| jkrx| j|j|d d � �}d}xB|D ]:} | dkr�| | j | kr�| j | j | � d}| dkr�d}q�W |�s|t |j�d krxx:| j |j D ]*} | | j | k�r| j | j | � d}�qW qxW qhW |sTP qTW | j S )Nrc z$endFz<empty>T) r� r� r� r� r� r r� r� r� ra r ) r r� �k�didaddr� rF �BZfstZhasemptyr r r r �compute_followQ s< zGrammar.compute_followc C s� x�| j D ]�}|}d}g }x�|t|�kr,d }ntt||�}y| j|j|d |_W n ttfk rn g |_Y nX y|j|d |_W n tk r� d |_Y nX ||_ |s�P |j |� |}|d7 }qW ||_ qW d S )Nr rc ) r� r r� r� r� r� r� r� r� r� ra r� )r r� ZlastlrirF r� Zlrir r r � build_lritems� s. 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conflicts� sr_conflicts� rr_conflictsr� r� r� �lr_parse_table)r r �methodr r r r r 4 s, zLRGeneratedTable.__init__c C sz | j d7 _ |d d � }d}xV|rtd}xH|D ]@}x:|jD ]0}t|dd�| j krRq:|j|j� | j |_d}q:W q.W q W |S )Nrc TF� lr0_addedr )r r� rK ra r� r )r �I�Jr� rG r� r r r � lr0_closureY s z LRGeneratedTable.lr0_closurec C s� | j jt|�|f�}|r |S | j j|�}|s:i }|| j |< g }xP|D ]H}|j}|rD|j|krD|jt|��}|s~i }||t|�< |j|� |}qDW |jd�}|s�|r�| j|�}||d< n||d< || j t|�|f< |S )Nz$end)r r r! r� r� ra r ) r r r� �gr= Zgsr� rB �s1r r r �lr0_gotos s2 zLRGeneratedTable.lr0_gotoc C s� | j | jjd jg�g}d}x"|D ]}|| jt|�< |d7 }q"W d}x�|t|�k r�|| }|d7 }i }x$|D ] }x|jD ] }d ||< qxW qlW xJ|D ]B}| j||�}| s�t|�| jkr�q�t|�| jt|�< |j |� q�W qFW |S )Nr rc ) r r r� r� r r! r r� r# ra ) r �CrF r Zasyms�iir= r� r! r r r � lr0_items� s( zLRGeneratedTable.lr0_itemsc C s� t � }d}xrxV| jjdd � D ]B}|jdkr:|j|j� q x$|jD ]}||krBP qBW |j|j� q W t|�|krrP t|�}q W |S )Nr rc )r� r r� r r� r r� )r �nullableZ num_nullabler� r� r r r � compute_nullable_nonterminals� s z.LRGeneratedTable.compute_nullable_nonterminalsc C sr g }xht |�D ]\\}}xR|D ]J}|j|jd k r ||j|jd f}|d | jjkr ||kr |j|� q W qW |S )Nrc )r� r� r r� r r� ra )r r$ �transZstatenorh r� r� r r r � find_nonterminal_transitions� s z-LRGeneratedTable.find_nonterminal_transitionsc C s� i }|\}}g }| j || |�}xJ|D ]B} | j| jd k r&| j| jd } | | jjkr&| |kr&|j| � q&W |dkr�|| jjd jd kr�|jd� |S )Nrc r z$end)r# r� r r� r r� ra r� ) r r$ r) r' Zdr_setrh r �termsr! r� r r r r � dr_relation� s z LRGeneratedTable.dr_relationc C sv g }|\}}| j || |�}| jjt|�d�}xB|D ]:} | j| jd k r4| j| jd } | |kr4|j|| f� q4W |S )Nrc r} )r# r r r! r� r r� ra ) r r$ r) �emptyr rh r r! rG r� r r r r �reads_relation s z LRGeneratedTable.reads_relationc C s� i }i }i }x|D ] }d||< qW �x�|D �]�\}} g } g } �xR|| D �]D} | j | krZqH| j} |}x�| | jd k �r | d } | j| }||f|kr�| d }xH|| jk r�| j| | jjkr�P | j| |kr�P |d }q�W | j||f� | j|| |�}| jj t |�d�}qfW x�|| D ]t}|j | j k�r,�q|j| jk�r>�qd}xD||jk �rx|j| | j|d k�rlP |d }�qDW | j||f� �qW qHW x2| D ]*}||k�r�g ||< || j|| f� �q�W | ||| f< q*W ||fS )Nrc r r} ) r r� r r� r r� ra r# r r r! )r r$ r) r' ZlookdictZ includedictZdtransr� rh r ZlookbZincludesr� r� rG Zlir! r" rF r r r �compute_lookback_includesC sX z*LRGeneratedTable.compute_lookback_includesc s0 � ��fdd�}� ��fdd�}t |||�}|S )Nc s �j � | ��S )N)r, )r� )r$ r' r r r �<lambda>� s z4LRGeneratedTable.compute_read_sets.<locals>.<lambda>c s �j � | ��S )N)r. )r� )r$ r' r r r r0 � s )r )r r$ �ntransr' r r r r )r$ r' r r �compute_read_sets� s z"LRGeneratedTable.compute_read_setsc s( �fdd�}� fdd�}t |||�}|S )Nc s � | S )Nr )r� )�readsetsr r r0 � s z6LRGeneratedTable.compute_follow_sets.<locals>.<lambda>c s � j | g �S )N)r )r� )�inclsetsr r r0 � s )r )r r1 r3 r4 r r r r )r4 r3 r �compute_follow_sets� s z$LRGeneratedTable.compute_follow_setsc C sx xr|j � D ]f\}}x\|D ]T\}}||jkr4g |j|< |j|g �}x*|D ]"}||j| krF|j| j|� qFW qW q W d S )N)re r� r ra ) r Z lookbacksZ followsetr) Zlbrh r� r r r r r �add_lookaheads� s z LRGeneratedTable.add_lookaheadsc C sP | j � }| j|�}| j|||�}| j|||�\}}| j|||�}| j||� d S )N)r( r* r2 r/ r5 r6 )r r$ r' r) r3 ZlookdZincludedZ followsetsr r r �add_lalr_lookaheads� s z$LRGeneratedTable.add_lalr_lookaheadsc $ C s< | j j}| j j}| j}| j}| j}i }|jd| j� | j� }| jdkrP| j |� d}�x�|D �]�} g } i } i } i } |jd� |jd|� |jd� x | D ]}|jd|j |� q�W |jd� �x| D �]�}|j |j d k�r,|j dkr�d| d < || d < �q�| jdk�r|j| }n| j j|j }�x�|D �]�}| j||d |j |f f� | j|�}|d k �r�|dk�rB|| | j j\}}|j|d�\}}||k �s�||k�r�|d k�r�|j | |< || |< | �r�| �r�|jd |� | jj||df� ||j jd7 _nB||k�r |dk�r d | |< n$|�s�|jd|� | jj||df� n�|dk �r�|| }||j }|j|jk�r�|j | |< || |< || }}||j jd7 _||j jd8 _n || }}| jj|||f� |jd|| | j | | � n td| ��n(|j | |< || |< ||j jd7 _�q&W q�|j }|j|d }|| j jkr�| j| |�}| jjt |�d�} | dkr�| j||d| f� | j|�}|d k �r�|dk�r�|| k�r�td| ��n�|dk �r�|| | j j\}}|j|d�\}}||k�s||k�rV|d k�rV|| | j jd8 _| | |< || |< |�s�|jd|� | jj||df� nL||k�rt|dk�rtd | |< n.| �r�| �r�|jd |� | jj||df� n td| ��q�| | |< || |< q�W i } xF| D ]>\}}} || k�r�|| | k�r�|jd|| � d| || f< �q�W |jd� d} xX| D ]P\}}} || k�r&|| | k �r&|| f| k�r&|j d|| � d} d| || f< �q&W | �r�|j d� i } x6| D ].}!x&|!j D ] }"|"| j j k�r�d | |"< �q�W �q�W xL| D ]D}#| j| |#�}| jjt |�d �} | dk�r�| | |#< |jd|#| � �q�W | ||< | ||< | ||< |d7 }q\W d S ) NzParsing method: %sr r rw zstate %dz (%d) %src zS'z$endzreduce using rule %d (%s)r� r� z3 ! shift/reduce conflict for %s resolved as reduce�reducer� z2 ! shift/reduce conflict for %s resolved as shiftZshiftz= ! reduce/reduce conflict for %s resolved using rule %d (%s)z Unknown conflict in state %dzshift and go to state %dz Shift/shift conflict in state %dz %-15s %sz ! %-15s [ %s ]z" %-30s shift and go to state %d)r� r r} )r� r r} ) r r� r� r[ rY r r r� r& r7 r� r r� r r� r� ra r r� r r� r� r r r� r� r# r r! r r� r� )$r r� r� r\ rZ r Zactionpr$ �str ZactlistZ st_actionZ st_actionpZst_gotor� Zlaheadsr r" ZsprecZslevelZrprecZrlevelZoldpZppZchosenpZrejectprF r! rG Z _actprintr� Znot_usedZnkeysr% r= rB r r r r � s z LRGeneratedTable.lr_parse_tablerw c C s� t |tj�rtd��|jd�d }tjj||�d }�ylt|d�}|j dtjj |�t | j |f � d}|�rti }xf| j j� D ]X\} } xN| j� D ]B\} } |j| �} | s�g g f} | || < | d j| � | d j| � q�W q|W |j d� xz|j� D ]n\}} |j d | � x | d D ]} |j d | � �q W |j d � x | d D ]} |j d | � �q8W |j d � q�W |j d � |j d� nJ|j d� x4| j j� D ]&\}} |j d|d |d | f � �q�W |j d � |�r�i }xl| jj� D ]^\} } xR| j� D ]F\} } |j| �} | �sg g f} | || < | d j| � | d j| � �q�W �q�W |j d� x||j� D ]p\}} |j d | � x | d D ]} |j d | � �qjW |j d � x | d D ]} |j d | � �q�W |j d � �qJW |j d � |j d� nJ|j d� x4| jj� D ]&\}} |j d|d |d | f � �q�W |j d � |j d� xd| jD ]Z}|j�rl|j d|j|j|j|jtjj |j�|jf � n |j dt|�|j|jf � �q0W |j d� |j� W n& tk �r� } z� W Y d d }~X nX d S )Nz"Won't overwrite existing tabmoduler� rc z.py�wzu # %s # This file is automatically generated. Do not edit. _tabversion = %r _lr_method = %r _lr_signature = %r r z _lr_action_items = {z%r:([z%r,z],[z]),z} z� _lr_action = {} for _k, _v in _lr_action_items.items(): for _x,_y in zip(_v[0],_v[1]): if not _x in _lr_action: _lr_action[_x] = {} _lr_action[_x][_k] = _y del _lr_action_items z _lr_action = { z (%r,%r):%r,z _lr_goto_items = {z� _lr_goto = {} for _k, _v in _lr_goto_items.items(): for _x, _y in zip(_v[0], _v[1]): if not _x in _lr_goto: _lr_goto[_x] = {} _lr_goto[_x][_k] = _y del _lr_goto_items z _lr_goto = { z_lr_productions = [ z (%r,%r,%d,%r,%r,%d), z (%r,%r,%d,None,None,None), z] r} )rA r� r� �IOError�splitr� r� r� r� r �basenamer� r� rY re r ra r[ rW r� r7 r r r� r� r� )r � tabmodule� outputdirr Zbasemodulenamer� r Zsmallerre r= Zndr rD rF r� r� �er r r � write_table� s� " " " z LRGeneratedTable.write_tablec C s y dd l }W n tk r( dd l}Y nX t|d���}|jt|t� |j| j|t� |j||t� |j| j|t� |j| j |t� g }x^| j D ]T}|j r�|j |j |j|j|j tjj|j�|jf� q�|j t |�|j|jd d d f� q�W |j||t� W d Q R X d S )Nr �wb)r� r� r� r� �dumpr� �pickle_protocolr� rY r[ rW r� ra r7 r r r� r� r= r� r� )r r� r r� ZoutfZoutpr� r r r � pickle_table s ,"z LRGeneratedTable.pickle_table)r N)rw rw )rw )r r r r r r# r& r( r* r, r. r/ r2 r5 r6 r7 r rA rE r r r r r 3 s" %#8 +P 8 zr c C s0 t j| �}|jj� }|j|jkr,|j|j� |S )N)rm � _getframe� f_globals�copy�f_locals�update)Zlevelsr Zldictr r r �get_caller_module_dict9 s rK c C s g }| j � }d }|}x�|D ]�}|d7 }|j� }|s4qy�|d dkrh|sVtd||f ��|} |dd � } n@|d } | }|dd � } |d } | dkr�| dkr�td||f ��|j||| | f� W q tk r� � Y q tk r� td |||j� f ��Y qX qW |S ) Nrc r �|z%s:%d: Misplaced '|'r� �:z::=z!%s:%d: Syntax error. Expected ':'z %s:%d: Syntax error in rule %r)� splitlinesr< rU ra � Exception�strip) �docr� r� r ZpstringsZlastpZdlineZpsr� r� r� Zassignr r r � parse_grammarE s6 rR c @ s� e Zd Zd dd�Zdd� Zdd� Zdd � Zd d � Zd d � Zdd� Z dd� Z dd� Z dd� Z dd� Z dd� Zdd� Zd d � Zd d � ZdS )!� ParserReflectNc C sL || _ d | _d | _d | _t� | _g | _d| _|d krBtt j �| _ n|| _ d S )NF) r� r� � error_func�tokensr� r� r r r rm rn r )r r� r r r r r o s zParserReflect.__init__c C s, | j � | j� | j� | j� | j� d S )N)� get_start�get_error_func� get_tokens�get_precedence�get_pfunctions)r r r r �get_all~ s zParserReflect.get_allc C s6 | j � | j� | j� | j� | j� | j� | jS )N)�validate_start�validate_error_func�validate_tokens�validate_precedence�validate_pfunctions�validate_modulesr )r r r r � validate_all� s zParserReflect.validate_allc C s yddl m} W n tk r0 ddlm} Y nX y�|dd�}| jrV|j| jjd�� | jr~|jdjdd� | jD ��jd�� | jr�|jd j| j�jd�� x*| j D ] }|d r�|j|d jd�� q�W W n t t fk r� Y nX t j |j� �}tjd d k�r |jd�}|S ) Nr )�md5F)Zusedforsecurityzlatin-1rw c S s g | ]}d j |��qS )rw )r� )r? r� r r r r@ � s z+ParserReflect.signature.<locals>.<listcomp>rx r )Zhashlibrc r� r� rJ �encoder� r� rU �pfuncs� TypeError� ValueError�base64Z b16encode�digestrm � version_info�decode)r rc Zsigr ri r r r r � s* " zParserReflect.signaturec C s� t jd�}x�| jD ]�}ytj|�\}}W n tk r> wY nX i }xjt|�D ]^\}}|d7 }|j|�}|rN|jd�}|j |�} | s�|||< qNtj |�} | j j d| ||| � qNW qW d S )Nz \s*def\s+(p_[a-zA-Z_0-9]*)\(rc z;%s:%d: Function %s redefined. Previously defined on line %d) �re�compiler� �inspectZgetsourcelinesr; r� r� �groupr � getsourcefiler r ) r Zfrer� �linesZlinenZ counthashr� r� r �prevr� r r r ra � s$ z ParserReflect.validate_modulesc C s | j jd�| _d S )Nr� )r� r r� )r r r r rV � s zParserReflect.get_startc C s& | j d k r"t| j t�s"| jjd� d S )Nz'start' must be a string)r� rA � string_typesr r )r r r r r\ � s z ParserReflect.validate_startc C s | j jd�| _d S )N�p_error)r� r rT )r r r r rW � s z ParserReflect.get_error_funcc C s� | j r�t| j tj�rd}n*t| j tj�r.d}n| jjd� d| _d S | j jj}| j jj }t j | j �}| j j |� | j jj| }|dkr�| jjd||� d| _d S )Nr rc z2'p_error' defined, but is not a function or methodTz$%s:%d: p_error() requires 1 argument)rT rA r� � FunctionType� MethodTyper r �__code__�co_firstlineno� co_filenamern � getmoduler� r� � co_argcount)r ZismethodZelineZefiler� Zargcountr r r r] � s z!ParserReflect.validate_error_funcc C sn | j jd�}|s&| jjd� d| _d S t|ttf�sJ| jjd� d| _d S |sd| jjd� d| _d S || _d S )NrU zNo token list is definedTz tokens must be a list or tupleztokens is empty)r� r r r rA rf r� rU )r rU r r r rX � s zParserReflect.get_tokensc C sZ d| j kr | jjd� d| _d S t� }x.| j D ]$}||krH| jjd|� |j|� q.W d S )Nr z.Illegal token name 'error'. Is a reserved wordTzToken %r multiply defined)rU r r r� r r� )r r� rB r r r r^ s z ParserReflect.validate_tokensc C s | j jd�| _d S )Nr� )r� r r� )r r r r rY s z ParserReflect.get_precedencec C s g }| j �rt| j ttf�s2| jjd� d| _d S x�t| j �D ]�\}}t|ttf�sj| jjd� d| _d S t|�dk r�| jjd|� d| _d S |d }t|t�s�| jjd� d| _d S xH|dd � D ]8}t|t�s�| jjd � d| _d S |j |||d f� q�W q>W || _ d S ) Nz"precedence must be a list or tupleTzBad precedence tabler� z?Malformed precedence entry %s. 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