mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-11-13 07:26:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 9

Elaborate the descriptions for onecmd(), precmd(), and postcmd() so they are

Browse source 
useful.
This commit is contained in:
Fred Drake 2001-12-27 05:10:18 +00:00
parent fd7f115a0e
commit 7c9a53dfc0
1 changed files with 20 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

29
Doc/lib/libcmd.tex
View file

@ -22,7 +22,6 @@ The optional argument is the \refmodule{readline} name of a completion
key; it defaults to \kbd{Tab}. If \var{completekey} is not \code{None} key; it defaults to \kbd{Tab}. If \var{completekey} is not \code{None}
and \module{readline} is available, command completion is done and \module{readline} is available, command completion is done
automatically. automatically.
\end{classdesc} \end{classdesc}
\subsection{Cmd Objects} \subsection{Cmd Objects}
@ -72,8 +71,11 @@ any undocumented commands.
\end{methoddesc} \end{methoddesc}
\begin{methoddesc}{onecmd}{str} \begin{methoddesc}{onecmd}{str}
Interpret the argument as though it had been typed in in Interpret the argument as though it had been typed in response to the
response to the prompt. prompt. This may be overridden, but should not normally need to be;
see the \method{precmd()} and \method{postcmd()} methods for useful
execution hooks. The return value is a flag indicating whether
interpretation of commands by the interpreter should stop.
\end{methoddesc} \end{methoddesc}
\begin{methoddesc}{emptyline}{} \begin{methoddesc}{emptyline}{}
@ -94,17 +96,26 @@ Method called to complete an input line when no command-specific
empty list. empty list.
\end{methoddesc} \end{methoddesc}
\begin{methoddesc}{precmd}{} \begin{methoddesc}{precmd}{line}
Hook method executed just before the command line is interpreted, but Hook method executed just before the command line \var{line} is
after the input prompt is generated and issued. This interpreted, but after the input prompt is generated and issued. This
method is a stub in \class{Cmd}; it exists to be overridden by method is a stub in \class{Cmd}; it exists to be overridden by
subclasses. subclasses. The return value is used as the command which will be
executed by the \method{onecmd()} method; the \method{precmd()}
implementation may re-write the command or simply return \var{line}
unchanged.
\end{methoddesc} \end{methoddesc}
\begin{methoddesc}{postcmd}{} \begin{methoddesc}{postcmd}{stop, line}
Hook method executed just after a command dispatch is finished. This Hook method executed just after a command dispatch is finished. This
method is a stub in \class{Cmd}; it exists to be overridden by method is a stub in \class{Cmd}; it exists to be overridden by
subclasses. subclasses. \var{line} is the command line which was executed, and
\var{stop} is a flag which indicates whether execution will be
terminated after the call to \method{postcmd()}; this will be the
return value of the \method{onecmd()} method. The return value of
this method will be used as the new value for the internal flag which
corresponds to \var{stop}; returning false will cause interpretation
to continue.
\end{methoddesc} \end{methoddesc}
\begin{methoddesc}{preloop}{} \begin{methoddesc}{preloop}{}