41 lines
1.2 KiB
TeX
41 lines
1.2 KiB
TeX
\section{\module{token} ---
|
|
Constants representing terminal nodes of the parse tree.}
|
|
\declaremodule{standard}{token}
|
|
|
|
\modulesynopsis{Constants representing terminal nodes of the parse tree.}
|
|
|
|
|
|
This module provides constants which represent the numeric values of
|
|
leaf nodes of the parse tree (terminal tokens). Refer to the file
|
|
\file{Grammar/Grammar} in the Python distribution for the defintions
|
|
of the names in the context of the language grammar. The specific
|
|
numeric values which the names map to may change between Python
|
|
versions.
|
|
|
|
This module also provides one data object and some functions. The
|
|
functions mirror definitions in the Python C header files.
|
|
|
|
|
|
|
|
\begin{datadesc}{tok_name}
|
|
Dictionary mapping the numeric values of the constants defined in this
|
|
module back to name strings, allowing more human-readable
|
|
representation of parse trees to be generated.
|
|
\end{datadesc}
|
|
|
|
\begin{funcdesc}{ISTERMINAL}{x}
|
|
Return true for terminal token values.
|
|
\end{funcdesc}
|
|
|
|
\begin{funcdesc}{ISNONTERMINAL}{x}
|
|
Return true for non-terminal token values.
|
|
\end{funcdesc}
|
|
|
|
\begin{funcdesc}{ISEOF}{x}
|
|
Return true if \var{x} is the marker indicating the end of input.
|
|
\end{funcdesc}
|
|
|
|
\begin{seealso}
|
|
\seemodule{parser}{second example uses this module}
|
|
\end{seealso}
|