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Files and Folders in: //opt/alt/python27/lib64/python2.7/lib2to3/pgen2

NameTypeSizeLast ModifiedActions
__init__.py File 143 bytes January 08 2025 10:43:36.
__init__.pyc File 187 bytes January 08 2025 10:43:36.
__init__.pyo File 187 bytes January 08 2025 10:43:36.
conv.py File 9627 bytes January 08 2025 10:43:36.
conv.pyc File 8267 bytes January 08 2025 10:43:36.
conv.pyo File 7115 bytes January 08 2025 10:43:36.
driver.py File 6041 bytes January 08 2025 10:43:36.
driver.pyc File 6632 bytes January 08 2025 10:43:36.
driver.pyo File 6569 bytes January 08 2025 10:43:36.
grammar.py File 6594 bytes January 08 2025 10:43:36.
grammar.pyc File 7827 bytes January 08 2025 10:43:36.
grammar.pyo File 7827 bytes January 08 2025 10:43:36.
literals.py File 1614 bytes January 08 2025 10:43:36.
literals.pyc File 2070 bytes January 08 2025 10:43:36.
literals.pyo File 1838 bytes January 08 2025 10:43:36.
parse.py File 8053 bytes January 08 2025 10:43:36.
parse.pyc File 7392 bytes January 08 2025 10:43:36.
parse.pyo File 7353 bytes January 08 2025 10:43:36.
pgen.py File 13826 bytes January 08 2025 10:43:36.
pgen.pyc File 12654 bytes January 08 2025 10:43:36.
pgen.pyo File 12041 bytes January 08 2025 10:43:36.
token.py File 1266 bytes January 08 2025 10:43:36.
token.pyc File 2355 bytes January 08 2025 10:43:36.
token.pyo File 2355 bytes January 08 2025 10:43:36.
tokenize.py File 19244 bytes January 08 2025 10:43:36.
tokenize.pyc File 17231 bytes January 08 2025 10:43:36.
tokenize.pyo File 17142 bytes January 08 2025 10:43:36.

Reading File: //opt/alt/python27/lib64/python2.7/lib2to3/pgen2/conv.pyo

�
�V~gc@sEdZddlZddlmZmZdejfd��YZdS(s�Convert graminit.[ch] spit out by pgen to Python code.

Pgen is the Python parser generator.  It is useful to quickly create a
parser from a grammar file in Python's grammar notation.  But I don't
want my parsers to be written in C (yet), so I'm translating the
parsing tables to Python data structures and writing a Python parse
engine.

Note that the token numbers are constants determined by the standard
Python tokenizer.  The standard token module defines these numbers and
their names (the names are not used much).  The token numbers are
hardcoded into the Python tokenizer and into pgen.  A Python
implementation of the Python tokenizer is also available, in the
standard tokenize module.

On the other hand, symbol numbers (representing the grammar's
non-terminals) are assigned by pgen based on the actual grammar
input.

Note: this module is pretty much obsolete; the pgen module generates
equivalent grammar tables directly from the Grammar.txt input file
without having to invoke the Python pgen C program.

i����N(tgrammarttokent	ConvertercBs2eZdZd�Zd�Zd�Zd�ZRS(s2Grammar subclass that reads classic pgen output files.

    The run() method reads the tables as produced by the pgen parser
    generator, typically contained in two C files, graminit.h and
    graminit.c.  The other methods are for internal use only.

    See the base class for more documentation.

    cCs(|j|�|j|�|j�dS(s<Load the grammar tables from the text files written by pgen.N(tparse_graminit_htparse_graminit_ct
finish_off(tselft
graminit_ht
graminit_c((s7/opt/alt/python27/lib64/python2.7/lib2to3/pgen2/conv.pytrun/s

c	Cs�yt|�}Wn#tk
r5}d||fGHtSXi|_i|_d}x�|D]�}|d7}tjd|�}|r�|j�r�d|||j�fGHqU|j�\}}t	|�}||j|<||j|<qUWt
S(s�Parse the .h file written by pgen.  (Internal)

        This file is a sequence of #define statements defining the
        nonterminals of the grammar as numbers.  We build two tables
        mapping the numbers to names and back.

        sCan't open %s: %siis^#define\s+(\w+)\s+(\d+)$s%s(%s): can't parse %s(topentIOErrortFalset
symbol2numbert
number2symboltretmatchtstriptgroupstinttTrue(	Rtfilenametfterrtlinenotlinetmotsymboltnumber((s7/opt/alt/python27/lib64/python2.7/lib2to3/pgen2/conv.pyR5s&		

	
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}g}xkt
|�D]]}
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f<|d|j�}}q�Wtjd|�}tt|j	��\}}g}xxt
|�D]j}
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ddd
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d�D])}|d|>@r�d||d|<q�q�Wq�W||f||<q�W|d|j�}}||_g}|d|j�}}tjd|�}t|j
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|�D]�}|d|j�}}tjd|�}|j	�\}}t|�}|dkr�d}nt|�}|j||f�qhW|d|j�}}||_|d|j�}}|d|j�}}tjd|�}t|j
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d��} | |_|d|j�}}y|d|j�}}Wntk
rCnXdS(s�Parse the .c file written by pgen.  (Internal)

        The file looks as follows.  The first two lines are always this:

        #include "pgenheaders.h"
        #include "grammar.h"

        After that come four blocks:

        1) one or more state definitions
        2) a table defining dfas
        3) a table defining labels
        4) a struct defining the grammar

        A state definition has the following form:
        - one or more arc arrays, each of the form:
          static arc arcs_<n>_<m>[<k>] = {
                  {<i>, <j>},
                  ...
          };
        - followed by a state array, of the form:
          static state states_<s>[<t>] = {
                  {<k>, arcs_<n>_<m>},
                  ...
          };

        sCan't open %s: %siisstatic arc s)static arc arcs_(\d+)_(\d+)\[(\d+)\] = {$s\s+{(\d+), (\d+)},$s'static state states_(\d+)\[(\d+)\] = {$s\s+{(\d+), arcs_(\d+)_(\d+)},$sstatic dfa dfas\[(\d+)\] = {$s0\s+{(\d+), "(\w+)", (\d+), (\d+), states_(\d+),$iiiis\s+("(?:\\\d\d\d)*")},$is!static label labels\[(\d+)\] = {$s\s+{(\d+), (0|"\w+")},$t0s
\s+(\d+),$s\s+{(\d+), labels},$s	\s+(\d+)$N(R
RRtnextt
startswithRRtmapRRtrangetappendtstatestgrouptevalt	enumeratetordtdfastNonetlabelststartt
StopIteration(!RRRRRRtallarcsR#Rtntmtktarcst_titjtstttstateR(tndfasRRtxtytztfirstt	rawbitsettctbyteR*tnlabelsR+((s7/opt/alt/python27/lib64/python2.7/lib2to3/pgen2/conv.pyRTs�		
			-
				
cCs�i|_i|_xjt|j�D]Y\}\}}|tjkr_|dk	r_||j|<q"|dkr"||j|<q"q"WdS(s1Create additional useful structures.  (Internal).N(tkeywordsttokensR&R*RtNAMER)(Rtilabelttypetvalue((s7/opt/alt/python27/lib64/python2.7/lib2to3/pgen2/conv.pyR�s		"(t__name__t
__module__t__doc__R	RRR(((s7/opt/alt/python27/lib64/python2.7/lib2to3/pgen2/conv.pyR$s
				�(RIRtpgen2RRtGrammarR(((s7/opt/alt/python27/lib64/python2.7/lib2to3/pgen2/conv.pyt<module>s

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