Atomic vector: Difference between revisions

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-'''Atomic vector''' (<source lang=apl inline>⎕AV</source>) contains 256 characters. This was the entire character set in some of the older interpreters that did not support [[Unicode]].
+{{Built-in|Atomic vector|⎕AV}} is the name of a 256-[[character]] [[vector]] which containes the entire character set of older APL implementations that did not support [[Unicode]], but instead used a single byte to store each character. Its value varies wildly between dialects, and can even differ between editions of the same dialect.
-In [[Dyalog APL]]:
+== Value ==
-<source lang=apl>
+In the following, display of the the character sets are obtained using <source lang=apl inline>16 16⍴mask\(mask←32≤⎕UCS ⎕AV)/⎕AV</source> to replace control characters with spaces.
-41⍴10↓⎕AV
+=== APL2 ===
-⌶ɫ%'⍺⍵_abcdefghijklmnopqrstuvwxyz��¯.⍬012
+[[APL2]] uses two primary values of <source lang=apl inline>⎕AV</source>, an [[wikipedia:ASCII|ASCII]]-based value on [[wikipedia:|personal computer]]s, and an [[wikipedia:EBCDIC|EBCDIC]]-based value on [[wikipedia:mainframe|mainframe]]s. The ASCII-based value is:
-3456789�⊢¥$£¢∆ABCDEFGHIJKLMNOPQRSTUVWXYZ�
+<pre>
-�ý·⍙ÁÂÃÇÈÊËÌÍÎÏÐÒÓÔÕÙÚÛÝþãìðòõ{€}⊣⌷¨ÀÄÅÆ
-⍨ÉÑÖØÜßàáâäåæçèéêëíîïñ[/⌿\⍀<≤=≥>≠∨∧-+÷×?∊
-⍴~↑↓⍳○*⌈⌊∇∘(⊂⊃∩∪⊥⊤|;,⍱⍲⍒⍋⍉⌽⊖⍟⌹!⍕⍎⍫⍪≡≢óôöø
+ !"#$%&'()*+,-./
-"#�&´┘┐┌└┼─├┤┴┬│@ùúû^ü`∣¶:⍷¿¡⋄←→⍝)]� §⎕⍞⍣
+0123456789:;<=>?
-</source>
+@ABCDEFGHIJKLMNO
+PQRSTUVWXYZ[\]^_
+`abcdefghijklmno
+pqrstuvwxyz{|}~
+ÇüéâäàåçêëèïîìÄÅ
+⎕⍞⌹ôöòûù⊤ÖÜø£⊥₧⌶
+áíóúñÑªº¿⌈¬½∪¡⍕⍎
+░▒▓│┤⍟∆∇→╣║╗╝←⌊┐
+└┴┬├─┼↑↓╚╔╩╦╠═╬≡
+⍸⍷∵⌷⍂⌻⊢⊣⋄┘┌█▄¦Ì▀
+⍺ß⊂⊃⍝⍲⍴⍱⌽⊖○∨⍳⍉∊∩
+⌿⍀≥≤≠×÷⍙∘⍵⍫⍋⍒¯¨
+</pre>
-In [[GNU APL]]:
+=== APLX ===
-<source lang=apl>
+In order to maximise the probability of being able to represent the text when converting from Unicode to internal representation, [[APLX]] accepts as input a number of alternative Unicode values for certain characters. However, these are automatically mapped to normalised character, and any unmappable characters are replaced with a question mark.
-45⍴31↓⎕AV
+<pre>
-  !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJK
+       ⍐ ⍗ ⍇⍈ ⍱⍲
-LMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwx
+⍒⍋⌽⍉⊖⍟⌶⍫⍎⍕⍀⌿⍝⍞!⌹
-yz{|}~¥€⇄∧∼≬⋆⋸⌸⌺⌼μ⍁¡⍣⍅⎕⍞⌹⍆⍤⍇⍈⍊⊤λ⍍⍏£⊥⍶⌶⍐⍑χ≢⍖⍗
+  ¨)<≤=>]∨^≠÷,+./
-⍘⍚⍛⌈⍜⍢∪⍨⍕⍎⍬⍪∣│┤⍟∆∇→╣║╗╝←⌊┐└┴┬├─┼↑↓╔╚╩╦╠═╬≡⍸⍷∵
+0123456789([;×:\
-⌷⍂⌻⊢⊣◊┘┌█▄▌▐▀⍺⍹⊂⊃⍝⍲⍴⍱⌽⊖○∨⍳⍉∈∩⌿⍀≥≤≠×÷⍙∘⍵⍫⍋⍒¯¨
+¯⍺⊥∩⌊∊_∇{⍳∘'⎕|⊤○
-</source>
+*?⍴⌈~↓∪⍵⊃↑⊂←⊢→≥-
+⋄ABCDEFGHIJKLMNO
+PQRSTUVWXYZ∆⊣⍪$}
-<source lang=apl inline>⎕AV</source> is obsolete in Dyalog APL since Unicode Edition was introduced. It no longer contains all the [[glyph]]s used for [[primitive function]]s and [[primitive operator|operators]] in Dyalog APL.
+┌┐└┘─│┼├┤┴┬  Í
+"#%&@£`≡≢⍷⍸  ⍤⍥⌷
+ÄÅÇÉÑÖÜáàâäãåçéè
+êëíìîïñóòô⍥õúùûü
+ÀÃÕ  Ææ⍬Øø¿¡ßÿ
+ abcdefghijklmno
+pqrstuvwxyz⍙È€
+</pre>
-The '''Unicode Atomic Vector''' (<source lang=apl inline>⎕AVU</source>) defines characters in <source lang=apl inline>⎕AV</source> as a list of Unicode code points.
+=== Dyalog APL ===
+<source lang=apl inline>⎕AV</source> is obsolete in [[Dyalog APL]] since the Unicode Edition was introduced and is only retained for backwards compatibility.<ref>Bernard Legrand. [https://www.dyalog.com/uploads/documents/MasteringDyalogAPL.pdf#page=525 Mastering Dyalog APL (page 525)]. [[Dyalog Ltd]]. November 2009.</ref> It no longer contains all the [[glyph]]s used for [[primitive function]]s and [[primitive operator|operators]]<ref>[[Adám Brudzewsky]] [https://github.com/abrudz/SBCS/blob/master/README.md#usage SBCS] (Single Byte Character Set) Usage</ref>, but can be adjusted by setting the [[Atomic Vector - Unicode]] (<source lang=apl inline>⎕AVU</source>) variable to a list of Unicode code points. The default value is:
+<pre>
+          ⌶ɫ%'⍺⍵
+_abcdefghijklmno
+pqrstuvwxyz  ¯.⍬
+0123456789 ⊢¥$£¢
+∆ABCDEFGHIJKLMNO
+PQRSTUVWXYZ  ý·
+⍙ÁÂÃÇÈÊËÌÍÎÏÐÒÓÔ
+ÕÙÚÛÝþãìðòõ{€}⊣⌷
+¨ÀÄÅÆ⍨ÉÑÖØÜßàáâä
+åæçèéêëíîïñ[/⌿\⍀
+<≤=≥>≠∨∧-+÷×?∊⍴~
+↑↓⍳○*⌈⌊∇∘(⊂⊃∩∪⊥⊤
+|;,⍱⍲⍒⍋⍉⌽⊖⍟⌹!⍕⍎⍫
+⍪≡≢óôöø"# &´┘┐┌└
+┼─├┤┴┬│@ùúû^ü`∣¶
+:⍷¿¡⋄←→⍝)]  §⎕⍞⍣
+</pre>
-== Links ==
+=== GNU APL ===
-* [https://help.dyalog.com/18.0/index.htm#Language/System%20Functions/av.htm Dyalog version 18.0 – Atomic Vector]
+[[GNU APL]] is fully Unicode-aware, and only includes the atomic vector for completeness:
-* Mastering Dyalog APL: [https://www.dyalog.com/uploads/documents/MasteringDyalogAPL.pdf#page=525 page 525]
+<pre>
-* [[Adám Brudzewsky]]'s [https://github.com/abrudz/SBCS Single-byte character set (SBCS)]
+ !"#$%&'()*+,-./
+0123456789:;<=>?
+@ABCDEFGHIJKLMNO
+PQRSTUVWXYZ[\]^_
+`abcdefghijklmno
+pqrstuvwxyz{|}~
+¥€⇄∧∼≬⋆⋸⌸⌺⌼μ⍁¡⍣⍅
+⎕⍞⌹⍆⍤⍇⍈⍊⊤λ⍍⍏£⊥⍶⌶
+⍐⍑χ≢⍖⍗⍘⍚⍛⌈⍜⍢∪⍨⍕⍎
+⍬⍪∣│┤⍟∆∇→╣║╗╝←⌊┐
+└┴┬├─┼↑↓╔╚╩╦╠═╬≡
+⍸⍷∵⌷⍂⌻⊢⊣◊┘┌█▄▌▐▀
+⍺⍹⊂⊃⍝⍲⍴⍱⌽⊖○∨⍳⍉∈∩
+⌿⍀≥≤≠×÷⍙∘⍵⍫⍋⍒¯¨ </pre>
+== External links ==
+=== Documentation ===
+* [http://microapl.com/apl_help/ch_020_070_060.htm APLX]
+* [https://help.dyalog.com/latest/index.htm#Language/System%20Functions/av.htm Dyalog]
+=== References ===
+<references/>
+{{APL built-ins}}
 [[Category:System constants]]

Atomic vector: Difference between revisions

Atomic vector (view source)

Revision as of 15:39, 7 July 2020

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