Jx 1.1 Release
A Jx v1.1 Extensions Guide, a J/Jx Cheatsheet, a Jx Assertions script
together with links to a Windows 64 bit dll, a Unix 64 bit so binaries
(without avx support) and the patch corresponding to the J806 source
(beta-6) can be found at the link [0].
Summary
- Primitives
Added =.. =:: $:: [. ]. ]: ".. `. &:.(*) ?:(*) i.. O.
Extended ~ $.
Modified " (*)
- Foreign
Added 104!:5 Unnamed Execution 102!:0/1 In-place Amend/Append (*)
- Trains
a v Added
a a Extended
c a Resurrected and extended (*)
a c a Resurrected and extended (*)
- Spelling
Names with Unicode characters
(*) New Jx 1.1 feature
This release introduces a modified primitive (") and, in theory, for the
first time an incompatibility vs the official J counterpart (J806 beta-6) ;
however, in practice, it is highly unlikely to break any existent code and
doubters have an opportunity to test their code.
This is a simple 1-decade-old example [1],
]`|."1 i.5 6
0 1 2 3 4 5
11 10 9 8 7 6
12 13 14 15 16 17
23 22 21 20 19 18
24 25 26 27 28 29
See also the threads [2, 3] for recent discussions.
The rank of the verb ?: has been changed to 0 0 0 to make it easier to use.
Three venerable facilities are released:
- The conjunction (&:.), for the motivation, see the post [4] (see also the
post [5] both, its reference and the embedded discussion for similar more
recent ideas).
- 102!:0/1 In-place Amend/Append, be very careful (see [6]); if you do not
know what to expect, play with their corresponding models instead.
PS. There are a couple of other goodies which will be documented later.
References
[0] Jx 1.1 Release
http://www.2bestsystems.com/foundation/j/jx1.1
[1] [Jprogramming] zig-zag order Oleg Kobchenko
http://www.jsoftware.com/pipermail/programming/2006-November/004188.htm
[2] [Jprogramming] How m"n shoulda been defined Henry Rich
http://www.jsoftware.com/pipermail/programming/2015-August/042512.html
[3] [Jprogramming] Jx version 1.0 release Henry Rich
http://www.jsoftware.com/pipermail/programming/2017-August/048124.html
[4] [Jforum] Wasted intermediate values Jose Mario Quintana
http://www.jsoftware.com/pipermail/general/2003-March/014488.html
[5] [Jprogramming] Fold/reduce with initial value? R.E. Boss
http://www.jsoftware.com/pipermail/programming/2015-February/041015.html
[6] [Jprogramming] Tacit J and indexed replacement Jose Mario Quintana
http://www.jsoftware.com/pipermail/programming/2014-July/038515.html
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