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=== Octave 7 ===
=== Octave 7 ===


==== Previous idea collections for Octave 7 ====
==== Previous idea collections for Octave 7 ===
* [[:Category:Development#Goals_for_upcoming_releases]]
* [[:Category:Development#Goals_for_upcoming_releases]]
** [[JWE Project Ideas]]
** [[JWE Project Ideas]]
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* Unify widget for all OSes
* Unify widget for all OSes
* Make jwe's patch a configurable options for testing (nothing to use productively yet)
* Make jwe's patch a configurable options for testing (nothing to use productively yet)
* Need to implement own pager (alternatively: scroll bar only)
* Need to implement own pager (scroll bar)
* Better responsibility delegation between GUI and interpreter
* Better responsibility delegation between GUI and interpreter
** Big matrix output: interpreter could ask GUI to print big matrix, GUI could confirm with user, etc.
** Big matrix output: interpreter asks GUI to print big matrix, GUI can confirm with user, etc.
** Formatting (colors, URLs, etc.) could be done by the GUI.  Interpreter does not need to know about window-width, etc.
** Formatting (colors, URLs, etc.) can be done by the GUI.  Interpreter does not know about window-width, etc.


===== Backend code improvements =====
===== User invisible code improvements =====


* "Ditch" old UNIX system functions (e.g. popen)
* "Ditch" old UNIX system functions (e.g. popen)
** Move to package?
** Move to package?
** compose a list of functions that are candidates for removal from core Octave. See: [https://octave.discourse.group/t/moving-posix-system-call-and-library-functions-out-of-core-octave/1027 Moving POSIX system call and library functions out of core Octave]
* import-operator
* performance of symbol lookup
** use <code>std::unordered_map</code>, rather than <code>std::map</code> to increase interpreter lookups
** use <code>std::unordered_map</code>, rather than <code>std::map</code> to increase performance (e.g. of interpreter lookups)
** symbol resolution slow
** Potentially implement "import" keyword? That would probably slow down symbol lookup some more.
* use <code>std::shared_ptr</code> instead of custom reference counting
* Replace custom reference counters with implementation using <code>std::shared_ptr</code>
* favor C++ std-library functions over gnulib!
** Some instances are more difficult to replace. jwe will post something about this on the discourse forum.
* favor C++ std-library functions over gnulib where possible
** Maybe require C++14 or C++17? See: [https://octave.discourse.group/t/using-c-17-features/1026 Using C++17 features]
* improve HDF5 integration
* improve HDF5 integration
** Add "wrapper" for libhdf5 functions in Octave's scripting language.
** Key to support latest Matlab file formats.
** Key to support latest Matlab file formats. Try to implement in the interfaces for that format in .m file functions.
** Some developers very interested in this!
** Some developers very interested in this!


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== Ideas for next meeting ==
== Ideas for next meeting ==


* Automatically reschedule the meeting monthly (Kai suggests on Discourse)
=== Topic suggestions ===
* MXE Octave branches and buildbots
 
* Strategy for transition to string class syntax (incompatible to current double-quoted character vectors in Octave)?
* ...
* Allow using more modern C++ dialects (C++17 STL std::filesystem or boost::filesystem)?


== See also ==
== See also ==


* Next meeting: [[Online Developer Meeting (2021-04-27)]]
* Next meeting: TBA
* Last meeting: [[Online Developer Meeting (2020-11-10)]]
* Last meeting: [[Online Developer Meeting (2020-11-10)]]


[[Category:2021]]
[[Category:2021]]
[[Category:Meetings]]
[[Category:Meetings]]
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