System Function NL: Difference between revisions

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(Create ⎕NL - Quad Names List page)
 
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Sample monadic calls:
'''Quad Names List''' Sample ''monadic'' calls:
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       ⎕NL 3    ⍝ list function names in the active workspace
       ⎕NL 3    ⍝ list function names in the active workspace
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Sample dyadic calls:
'''Quad Names List''' Sample ''dyadic'' calls:
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       "A" ⎕NL 3    ⍝ List all function names beginning with A.
       "A" ⎕NL 3    ⍝ List all function names beginning with A.

Revision as of 19:40, 29 January 2015

Monadic Function

Z←⎕NL R returns a character matrix of user function names and or variable names where R = 3 (function names) and or 2 (variable names).
R is either 2 (variable names) or 3 (function names) or 2 3 (both function and variable names).
Z is a character matrix of user objects in the workspace, each row being a name in the workspace.


Quad Names List Sample monadic calls:

      ⎕NL 3     ⍝ list function names in the active workspace
      ⎕NL 2     ⍝ list variable names in the active workspace
      ⎕NL 3 2   ⍝ list function AND variable names in the active workspace

Dyadic Function

Z←L ⎕NL R returns a character matrix of user function names and or variable names where R = 3 (function names) and or 2 (variable names)..
R is either 2 (var names) or 3 (fns names) or 2 3 (both fns and vars).
L is a letter or letters for LIMITING fns/var names list, i.e. which BEGIN with the letter(s) to show.


Quad Names List Sample dyadic calls:

      "A" ⎕NL 3     ⍝ List all function names beginning with A.
      "M" ⎕NL 2     ⍝ List all variable names beginning with M.
      "AC" ⎕NL 3 2  ⍝ List all function AND variable names beginning with letter "A" and also letter "C".

Function ⎕NL may be used inside user functions whereas system commands )FNS and )VARS cannot be used inside a user function.


Note: ⎕NL is available as both a monadic and dyadic form system function, you cannot assign a value to it.

System Variables (A value may be assigned to these except for ⎕DM)
ALX CT DM DT ELX FC FEATURE FPC IC IO
LR LX PP PR PW RL SA WSID
Niladic System Functions (a value cannot be assigned to these)
A AV EM ET LC NNAMES NNUMS SI SYSID SYSVER
T TC TCBEL TCBS TCESC TCFF TCHT TCLF TCNL TCNUL
TS WA
Monadic or dyadic system functions (a value cannot be assigned to these)
AT CR DC DFT DL DR EA EC ERROR ES
EX FMT FX MF NAPPEND NC NCREATE NERASE NINFO NL
NLOCK NREAD NRENAME NREPLACE NRESIZE NSIZE NTIE NUNTIE STOP TF
TRACE UCS VR
Note that quad functions and variables (except for the ⎕A family of functions) are case insensitive


See Also
System Commands System Variables and Functions Operators


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