121 lines
5.1 KiB
TeX
121 lines
5.1 KiB
TeX
\section{Standard Module \sectcode{ic}}
|
|
\label{module-ic}
|
|
\bimodindex{ic}
|
|
|
|
\setindexsubitem{(in module ic)}
|
|
|
|
This module provides access to macintosh Internet Config package,
|
|
which stores preferences for Internet programs such as mail address,
|
|
default homepage, etc. Also, Internet Config contains an elaborate set
|
|
of mappings from Macintosh creator/type codes to foreign filename
|
|
extensions plus information on how to transfer files (binary, ascii,
|
|
etc).
|
|
|
|
There is a low-level companion module \code{icglue} which provides the
|
|
basic ic access functionality. This low-level module is not
|
|
documented, but the docstrings of the routines document the parameters
|
|
and the routine names are the same as for the Pascal or C API to
|
|
Internet Config, so the standard IC programmers documentation can be
|
|
used if this module is needed.
|
|
|
|
The \code{ic} module defines the \code{error} exception and symbolic
|
|
names for all error codes IC can produce, see the source for details.
|
|
|
|
The \code{ic} module defines the following functions:
|
|
|
|
\begin{funcdesc}{IC}{\optional{signature, ic}}
|
|
Create an internet config object. The signature is a 4-char creator
|
|
code of the current application (default \code{'Pyth'}) which may
|
|
influence some of ICs settings. The optional \var{ic} argument is a
|
|
low-level \code{icinstance} created beforehand, this may be useful if
|
|
you want to get preferences from a different config file, etc.
|
|
\end{funcdesc}
|
|
|
|
\begin{funcdesc}{launchurl}{url \optional{, hint}}
|
|
\end{funcdesc}
|
|
\begin{funcdesc}{parseurl}{data \optional{, start, end, hint}}
|
|
\end{funcdesc}
|
|
\begin{funcdesc}{mapfile}{file}
|
|
\end{funcdesc}
|
|
\begin{funcdesc}{maptypecreator}{type, creator \optional{, filename}}
|
|
\end{funcdesc}
|
|
\begin{funcdesc}{settypecreator}{file}
|
|
These functions are ``shortcuts'' to the methods of the same name,
|
|
described below.
|
|
\end{funcdesc}
|
|
|
|
|
|
\subsection{IC objects}
|
|
|
|
IC objects have a mapping interface, hence to obtain the mail address
|
|
you simply get \code{ic['MailAddress']}. Assignment also works, and
|
|
changes the option in the configuration file.
|
|
|
|
The module knows about various datatypes, and converts the internal IC
|
|
representation to a ``logical'' python datastructure. Running the
|
|
\code{ic} module standalone will run a test program that lists all
|
|
keys and values in your IC database, this will have to server as
|
|
documentation.
|
|
|
|
If the module does not know how to represent the data it returns an
|
|
instance of the \var{ICOpaqueData} type, with the raw data in its
|
|
\var{data} attribute. Objects of this type are also acceptable values
|
|
for assignment.
|
|
|
|
Besides the dictionary interface IC objects have the following methods:
|
|
|
|
\setindexsubitem{(IC object attribute)}
|
|
|
|
\begin{funcdesc}{launchurl}{url \optional{, hint}}
|
|
Parse the given URL, lauch the correct application and pass it the
|
|
URL. The optional \var{hint} can be a scheme name such as
|
|
\code{mailto:}, in which case incomplete URLs are completed with this
|
|
scheme (otherwise incomplete URLs are invalid).
|
|
\end{funcdesc}
|
|
|
|
\begin{funcdesc}{parseurl}{data \optional{, start, end, hint}}
|
|
Find an URL somewhere in \var{data} and return start position, end
|
|
position and the URL. The optional \var{start} and \var{end} can be
|
|
used to limit the search, so for instance if a user clicks in a long
|
|
textfield you can pass the whole textfield and the click-position in
|
|
\var{start} and this routine will return the whole URL in which the
|
|
user clicked. \var{Hint} is again an optional scheme used to complete
|
|
incomplete URLs.
|
|
\end{funcdesc}
|
|
|
|
\begin{funcdesc}{mapfile}{file}
|
|
Return the mapping entry for the given \var{file}, which can be passed
|
|
as either a filename or an \var{FSSpec} object, and which need not
|
|
exist.
|
|
|
|
The mapping entry is returned as a tuple \code{(}\var{version},
|
|
\var{type}, \var{creator}, \var{postcreator}, \var{flags},
|
|
\var{extension}, \var{appname}, \var{postappname}, \var{mimetype},
|
|
\var{entryname}\code{)}, where \var{version} is the entry version
|
|
number, \var{type} is the 4-char filetype, \var{creator} is the 4-char
|
|
creator type, \var{postcreator} is the 4-char creator code of an
|
|
optional application to post-process the file after downloading,
|
|
\var{flags} are various bits specifying whether to transfer in binary
|
|
or ascii and such, \var{extension} is the filename extension for this
|
|
file type, \var{appname} is the printable name of the application to
|
|
which this file belongs, \var{postappname} is the name of the
|
|
postprocessing application, \var{mimetype} is the MIME type of this
|
|
file and \var{entryname} is the name of this entry.
|
|
\end{funcdesc}
|
|
|
|
\begin{funcdesc}{maptypecreator}{type, creator \optional{, filename}}
|
|
Return the mapping entry for files with given 4-char \var{type} and
|
|
\var{creator} codes. The optional \var{filename} may be specified to
|
|
further help finding the correct entry (if the creator code is
|
|
\code{'????'}, for instance).
|
|
|
|
The mapping entry is returned in the same format as for \var{mapfile}.
|
|
\end{funcdesc}
|
|
|
|
\begin{funcdesc}{settypecreator}{file}
|
|
Given an existing \var{file}, specified either as a filename or as an
|
|
\var{FSSpec} record, set its creator and type correctly based on its
|
|
extension. The finder is told about the change, so the finder icon
|
|
will be updated quickly.
|
|
\end{funcdesc}
|