166 lines
5.5 KiB
TeX
166 lines
5.5 KiB
TeX
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% STk Reference manual (Appendix: Changes)
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%
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% Author: Erick Gallesio [eg@unice.fr]
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% Creation date: 21-Dec-1997 20:09
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% Last file update: 1-Sep-1999 23:17 (eg)
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%
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\section*{Introduction}
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This appendix lists the main differences\footnote{ Only the
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differences which affect the language or new ports are reported
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here. In particular, internal changes, packages written in Scheme,
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STklos or performance enhancements are not discussed here.} among
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the various recent versions of STk. Differences with older versions
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as well as implementation changes are described in the CHANGES file
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located in the main directory of the STk distribution.
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\section*{Release 4.0.0}
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\small{\emph{Release date: 09/03/99}}
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Mains changes/modifications since 3.99.4:
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\begin{itemize}
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\item define-syntax
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\item Integration of SRFI-{0,2,6,8}
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\end{itemize}
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\section*{Release 3.99.4}
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\small{\emph{Release date: 02/02/99}}
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Mains changes/modifications since 3.99.3:
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\begin{itemize}
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\item Virtuals ports
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\end{itemize}
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\section*{Release 3.99.3}
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\small{\emph{Release date: 09/30/98}}
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Mains changes/modifications since 3.99.2:
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\begin{itemize}
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\item Tk version is 8.0.3
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\item Base64 Encoding/Decoding extension
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\item Locale extension to treat strings and character using locale
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information
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\end{itemize}
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\section*{Release 3.99.2}
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\small{\emph{Release date: 04/27/98}}
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Mainly a bugs correcting release.
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New function: \texttt{write*} which handle circular structures. \texttt{Format}
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accepts now the special tag ``\verb+~W+'' for circular structures writing.
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\section*{Release 3.99.1}
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\small{\emph{Release date: 04/27/98}}
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Mainly a bugs correcting release
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\section*{Release 3.99.0}
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\small{\emph{Release date: 04/10/98}}
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Changes can be classified in three categories:
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\begin{itemize}
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\item About Scheme
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\begin{itemize}
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\item A module system has been added
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\item Integration of the Bigloo \ide{match-case} and
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\ide{match-lambda} primitives. Furthermore, the file \emph{bigloo.stk}
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provides some compatibility between {\stk} and bigloo modules.
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\item A simple Foreign Function Interface has been added.
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\item integrates the {\rfive} \ide{values} and \ide{call-with-values}
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\item multi-line comments have been added.
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\item new file primitives: \texttt{remove-file}, \texttt{rename-file} and
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\texttt{temporary-file-name}.
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\item new list primitives: \texttt{append!}, \texttt{last-pair},
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\texttt{remq}, \texttt{remv} and \texttt{remove}.
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\item \texttt{load}, \texttt{try-load} and \texttt{autoload?} can nw
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be called with a module as second parameter. If this second parameter is
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present, the loading is done in the environment of the given module.
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\end{itemize}
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\item About Tk
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\begin{itemize}
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\item Integration of the Tk8.0 toolkit
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\item Buttons, Checkbuttons and Radiobuttons can use a
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\texttt{:variable} and \texttt{:textvariable} in a given
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environment. This environment is given with the new \texttt{:environment}
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option.
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\end{itemize}
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\item About STklos
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\begin{itemize}
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\item The MOP of {\stklos} is now very similar to the CLOS's MOP. In
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particular generic function has been added for controlling slot
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accesses, as well as numerous introspection functions.
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\item When a class is redefined, the instances and methods which uses it
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are redefined accordingly, as in CLOS (i.e. if anew slot is added in a
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class, all its -- direct or indirect -- instances will have the new
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slot added dynamically.
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\end{itemize}
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\end{itemize}
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\section*{Release 3.1.1}
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\small{\emph{Release date: 09/26/96}}
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This release is a bug correction release. It corrects a lot of bugs.
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A lot of these bugs prevent to install it on some architectures.
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\section*{Release 3.1}
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\small{\emph{Release date: 07/24/96}}
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\begin{itemize}
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\item Version of Tk is now at Tk4.1 level.
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\item STk has been ported on Windows 95 and Windows NT.
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\item Ports can have a handler which is executed when port becomes
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readable or writable (see primitives \texttt{when-port-readable} and
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\texttt{when-port-writable}.
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\item Sockets in server mode allow multiple concurrent connection.
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\item \stklos{}: Two new methods: \texttt{object-eqv?} and
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\texttt{object-equal?} which are called when applying \texttt{eqv?}
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or \texttt{equal?} to instances.
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\item New primitive:\texttt{setenv!}
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\end{itemize}
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\section*{Release 3.0}
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\small{\emph{Release date: 01/22/96}}
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\begin{itemize}
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\item Version of Tk is at Tk4.0p2 level.
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\item Closures are fully supported by Tk. That means that a callback can be
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now a Scheme closure with its environment. GC problems with closures
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and usage of the dirty \texttt{address-of} are definitively gone.
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\item Strings can contain null charters (printing of strings is more
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friendly in write mode).
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\item Signals can be redirected to Scheme closures. The end of a GC
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is seen as a signal.
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\item Traces on variables are changed (and re-work now): the
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associated trace must be a thunk.
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\item New options for some widgets to be more friendly with Scheme world
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\item \stklos{}: if a method M is defined and if it is already bound
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to a procedure, the old procedure is called when no method is
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applicable.
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\begin{scheme}
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(define-method car ((x <integer>)) (- x 1))
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(car 10) \lev 9
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(car (cons 'a 'b)) \lev a
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\end{scheme}
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\item Small change in the STklos hierarchy. \texttt{<widget>} is now a
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subclass of \texttt{<procedure>} and its meta class is
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\texttt{<procedure-metaclass>}.
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\end{itemize}
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%%% Local Variables:
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%%% mode: latex
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%%% TeX-master: "manual"
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%%% End:
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