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from __future__ import absolute_import

from itertools import count

from token import *

from parso._compatibility import py_version

_counter = count(N_TOKENS)

# Never want to see this thing again.

del N_TOKENS

COMMENT = next(_counter)

tok_name[COMMENT] = 'COMMENT'

NL = next(_counter)

tok_name[NL] = 'NL'

# Sets the attributes that don't exist in these tok_name versions.

if py_version >= 30:

BACKQUOTE = next(_counter)

tok_name[BACKQUOTE] = 'BACKQUOTE'

else:

RARROW = next(_counter)

tok_name[RARROW] = 'RARROW'

ELLIPSIS = next(_counter)

tok_name[ELLIPSIS] = 'ELLIPSIS'

if py_version < 35:

ATEQUAL = next(_counter)

tok_name[ATEQUAL] = 'ATEQUAL'

ERROR_DEDENT = next(_counter)

tok_name[ERROR_DEDENT] = 'ERROR_DEDENT'

FSTRING_START = next(_counter)

tok_name[FSTRING_START] = 'FSTRING_START'

FSTRING_END = next(_counter)

tok_name[FSTRING_END] = 'FSTRING_END'

FSTRING_STRING = next(_counter)

tok_name[FSTRING_STRING] = 'FSTRING_STRING'

EXCLAMATION = next(_counter)

tok_name[EXCLAMATION] = 'EXCLAMATION'

# Map from operator to number (since tokenize doesn't do this)

opmap_raw = """\

( LPAR

) RPAR

[ LSQB

] RSQB

: COLON

, COMMA

; SEMI

+ PLUS

- MINUS

* STAR

/ SLASH

| VBAR

& AMPER

< LESS

> GREATER

= EQUAL

. DOT

% PERCENT

` BACKQUOTE

{ LBRACE

} RBRACE

@ AT

== EQEQUAL

!= NOTEQUAL

<> NOTEQUAL

<= LESSEQUAL

>= GREATEREQUAL

~ TILDE

^ CIRCUMFLEX

<< LEFTSHIFT

>> RIGHTSHIFT

** DOUBLESTAR

+= PLUSEQUAL

-= MINEQUAL

*= STAREQUAL

/= SLASHEQUAL

%= PERCENTEQUAL

&= AMPEREQUAL

|= VBAREQUAL

@= ATEQUAL

^= CIRCUMFLEXEQUAL

<<= LEFTSHIFTEQUAL

>>= RIGHTSHIFTEQUAL

**= DOUBLESTAREQUAL

// DOUBLESLASH

//= DOUBLESLASHEQUAL

-> RARROW

... ELLIPSIS

! EXCLAMATION

"""

opmap = {}

for line in opmap_raw.splitlines():

op, name = line.split()

opmap[op] = globals()[name]

def generate_token_id(string):

"""

Uses a token in the grammar (e.g. `'+'` or `'and'`returns the corresponding

ID for it. The strings are part of the grammar file.

"""

try:

return opmap[string]

except KeyError:

pass

return globals()[string]