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annotate Doc/library/token.rst @ 54294:dba767bc3155 legacy-trunk

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remove mention of old ctypes version
author Benjamin Peterson <benjamin@python.org>
date Sat, 23 May 2009 20:59:09 +0000
parents 9e1529bf0442
children 77771b085eca fa91270b6087
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2 :mod:`token` --- Constants used with Python parse trees
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3 =======================================================
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5 .. module:: token
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6 :synopsis: Constants representing terminal nodes of the parse tree.
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7 .. sectionauthor:: Fred L. Drake, Jr. <fdrake@acm.org>
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10 This module provides constants which represent the numeric values of leaf nodes
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11 of the parse tree (terminal tokens). Refer to the file :file:`Grammar/Grammar`
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12 in the Python distribution for the definitions of the names in the context of
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13 the language grammar. The specific numeric values which the names map to may
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14 change between Python versions.
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16 This module also provides one data object and some functions. The functions
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17 mirror definitions in the Python C header files.
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20 .. data:: tok_name
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22 Dictionary mapping the numeric values of the constants defined in this module
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23 back to name strings, allowing more human-readable representation of parse trees
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24 to be generated.
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27 .. function:: ISTERMINAL(x)
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29 Return true for terminal token values.
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32 .. function:: ISNONTERMINAL(x)
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34 Return true for non-terminal token values.
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37 .. function:: ISEOF(x)
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39 Return true if *x* is the marker indicating the end of input.
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42 .. seealso::
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43
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44 Module :mod:`parser`
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45 The second example for the :mod:`parser` module shows how to use the
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46 :mod:`symbol` module.
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