ó Nä²Wc @@sddlmZddlZejdedededeƒddlmZdd lmZm Z m Z eƒZ d efd „ƒYZ dS( i(tabsolute_importNtBOLtEOLtEOFt NOT_FOUNDi(tErrors(RRRtScannercB@sqeZdZdd d„Zd„Zd„Zd„Zd„Zd„Z d„Z d „Z d d „Z d „Z RS( sÖ A Scanner is used to read tokens from a stream of characters using the token set specified by a Plex.Lexicon. Constructor: Scanner(lexicon, stream, name = '') See the docstring of the __init__ method for details. Methods: See the docstrings of the individual methods for more information. read() --> (value, text) Reads the next lexical token from the stream. position() --> (name, line, col) Returns the position of the last token read using the read() method. begin(state_name) Causes scanner to change state. produce(value [, text]) Causes return of a token value to the caller of the Scanner. tcC@sùd|_d|_d|_d|_d|_d|_d|_d|_d|_d|_ d|_ ||_ ||_ ||_g|_d|_|jdƒd|_d|_d|_t|_d|_|dk rõ|d|d |_|_ndS(sƒ Scanner(lexicon, stream, name = '') |lexicon| is a Plex.Lexicon instance specifying the lexical tokens to be recognised. |stream| can be a file object or anything which implements a compatible read() method. |name| is optional, and may be the name of the file being scanned or any other identifying string. iuiRiN(ttracetbuffert buf_start_postnext_postcur_postcur_linet start_post start_linet start_coltNonettextt state_nametlexicontstreamtnametqueuet initial_statetbegintcur_line_startRtcur_chart input_state(tselfRRRt initial_pos((s7/bar/jli/Chip-seq/script/cython/Cython/Plex/Scanners.pyt__init__Hs0                       cC@s—|j}xv|s|jƒ\|_}|dkrM|jdƒ|jƒq |j||jƒ}|dk r |j|ƒq q W|d}|d=|S(s" Read the next lexical token from the stream and return a tuple (value, text), where |value| is the value associated with the token as specified by the Lexicon, and |text| is the actual string read from the stream. Returns (None, '') on end of file. iN(Rt scan_a_tokenRRtproduceteoftperform(RRtactiontvaluetresult((s7/bar/jli/Chip-seq/script/cython/Cython/Plex/Scanners.pytreadps       cC@s|j|_|j|_|j|j|_|jƒ}|dk r•|jrgd||j|jfGHn|j |j|j |j|j !}||fS|j|jkrè|j t krÃ|j ƒn|j dksá|j tkrèdSntj||jƒ‚dS(s– Read the next input sequence recognised by the machine and return (text, action). Returns ('', None) on end of file. s"Scanner: read: Performing %s %d:%duN(uN(R RR RRRtrun_machine_inlinedRRR R RRt next_charRRtUnrecognizedInputR(RR$R((s7/bar/jli/Chip-seq/script/cython/Cython/Plex/Scanners.pyR …s$        cC@sq|j}|j}|j}|j}|j}|j}|j}|j}|j} t |ƒ} d\} } } }}}}|j }x’|r¬d|d||t |ƒfGHn|d}|dk rõ|||||||f\} } } }}}}n|}|j |tƒ}|tkr1|o+|j dƒ}n|r¾|rMd|dGHn|}|dkrP|}|| }|| kr’||}|d7}n…|j| }|jjd ƒ}|j||}||_| |7} | |_t |ƒ} ||8}|r||}|d7}nd}|d kr2t}d }q»|sGt}d }q»|}q|d krkd }d }q|d krš|d7}|}}t}d}q|d krµt}d}qd}q„|rÌdGHn| dk r | | | ||||f\}}}}}}}nd}Pq„W||_||_||_||_||_||_|rm|dk rmd|GHqmn|S(s; Inlined version of run_machine for speed. iusState %d, %d/%d:%s -->tnumberR$telsesState %diiu iiiitblockedsDoing %sN(Niiiuii(RR R RRRR R R tlenRRtreprtgetRRRR'RRR(RtstateR R RRRR R R tbuf_lentb_actiont b_cur_post b_cur_linetb_cur_line_startt b_cur_chart b_input_statet b_next_posRR$tct new_statet buf_indextdiscardtdata((s7/bar/jli/Chip-seq/script/cython/Cython/Plex/Scanners.pyR(Ÿs¢             3                             '       cC@sR|j}|jr*dd ||jfGHn|dkr–|j|_|jƒ}|dkrot|_d|_q$|sŠt|_d|_q$||_nŽ|dkr·d|_d|_nm|dkrú|jd7_|j|_|_t |_d|_n*|dkrt |_d |_n d |_|jrNd ||jt |jƒfGHndS( NsScanner: next: %s [%d] %dt iiu iiiius--> [%d] %d %ss ( RRR R t read_charRRR RRRR/(RRR:((s7/bar/jli/Chip-seq/script/cython/Cython/Plex/Scanners.pyR) s6                      cC@s|j|j|jfS(sm Return a tuple (name, line, col) representing the location of the last token read using the read() method. |name| is the name that was provided to the Scanner constructor; |line| is the line number in the stream (1-based); |col| is the position within the line of the first character of the token (0-based). (RRR(R((s7/bar/jli/Chip-seq/script/cython/Cython/Plex/Scanners.pytposition(s cC@s |jƒS(sOPython accessible wrapper around position(), only for error reporting. (RA(R((s7/bar/jli/Chip-seq/script/cython/Cython/Plex/Scanners.pyt get_position3scC@s"|jj|ƒ|_||_dS(s8Set the current state of the scanner to the named state.N(Rtget_initial_stateRR(RR((s7/bar/jli/Chip-seq/script/cython/Cython/Plex/Scanners.pyR8scC@s2|dkr|j}n|jj||fƒdS(sÐ Called from an action procedure, causes |value| to be returned as the token value from read(). If |text| is supplied, it is returned in place of the scanned text. produce() can be called more than once during a single call to an action procedure, in which case the tokens are queued up and returned one at a time by subsequent calls to read(), until the queue is empty, whereupon scanning resumes. N(RRRtappend(RR%R((s7/bar/jli/Chip-seq/script/cython/Cython/Plex/Scanners.pyR!>s  cC@sdS(s_ Override this method if you want something to be done at end of file. N((R((s7/bar/jli/Chip-seq/script/cython/Cython/Plex/Scanners.pyR"MsN(t__name__t __module__t__doc__RRR'R R(R)RARBRR!R"(((s7/bar/jli/Chip-seq/script/cython/Cython/Plex/Scanners.pyRs(   j    ( t __future__RtcythontdeclaretobjectRRtRegexpsRRRRR(((s7/bar/jli/Chip-seq/script/cython/Cython/Plex/Scanners.pyt s  "