diff Doc/lib/libcodeop.tex @ 11036:5adbb3f04cbc legacy-trunk

Two more from Moshe!
author Fred Drake <fdrake@acm.org>
date Wed, 23 Jun 1999 13:33:40 +0000
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children e82e82b3b9ad
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Doc/lib/libcodeop.tex	Wed Jun 23 13:33:40 1999 +0000
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+% LaTeXed from excellent doc-string.
+\section{\module{codeop} ---
+         Compile Python code}
+
+\declaremodule{standard}{codeop}
+\sectionauthor{Moshe Zadka}{mzadka@geocities.com}
+\modulesynopsis{Compile (possibly incomplete) Python code.}
+
+The \module{codeop} module provides a function to compile Python code
+with hints on whether it certainly complete, possible complete or
+definitely incomplete.  This is used by the \refmodule{code} module
+and should not normally be used directly.
+
+The \module{codeop} module defines the following function:
+
+\begin{funcdesc}{compile_command}
+                {source\optional{, filename\optional{, symbol}}}
+
+Try to compile \var{source}, which should be a string of Python
+code. Return a code object if \var{source} is valid
+Python code. In that case, the filename attribute of the code object
+will be \var{filename}, which defaults to \code{'<input>'}.
+
+Return \code{None} if \var{source} is \emph{not} valid Python
+code, but is a prefix of valid Python code.
+
+Raise an exception if there is a problem with \var{source}:
+\begin{itemize}
+        \item \exception{SyntaxError}
+              if there is invalid Python syntax.
+        \item \exception{OverflowError}
+              if there is an invalid numeric constant.
+\end{itemize}
+
+The \var{symbol} argument means whether to compile it as a statement
+(\code{'single'}, the default) or as an expression (\code{'eval'}).
+
+\strong{Caveat:}
+It is possible (but not likely) that the parser stops parsing
+with a successful outcome before reaching the end of the source;
+in this case, trailing symbols may be ignored instead of causing an
+error.  For example, a backslash followed by two newlines may be
+followed by arbitrary garbage.  This will be fixed once the API
+for the parser is better.
+\end{funcdesc}