System WSID: Difference between revisions

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<h1>{quad}WSID - Set or Retrieve Workspace ID</h1>
<h1><aplxx>⎕WSID</aplxx> - Set or retrieve Workspace ID<br/><br/>
{{BoxStart|<apll>Z←⎕WSID</apll>
<aplxx>)WSID</aplxx> - Display or Name the Current Workspace</h1>
|returns the current file name of the workspace.}}
<table border="1" cellpadding="5" cellspacing="0" rules="none" summary="">
{{BoxEnd|<apll>Z</apll> is a string.}}
<tr>
<br />
  <td>
    <table border="0" cellpadding="5" cellspacing="0" summary="">
    <tr>
      <td valign="top"><apll>Z←⎕WSID</apll></td>
      <td></td>
      <td></td>
      <td>returns the current file name of the workspace.</td>
    </tr>
    <tr>
    <td><apll>Z</apll> is a character vector.</td>
    </tr>
    <tr>
      <td valign="top"><apll>⎕WSID{assign}R</apll></td>
      <td></td>
      <td></td>
      <td>sets the name of the workspace to the value of <apll>R</apll>.</td>
    </tr>
    <tr>
      <td colspan=4><hr/></td>
    </tr>
    <tr>
      <td valign="top"><apll>)WSID</apll></td>
      <td></td>
      <td></td>
      <td>displays the current workspace name or CLEAR WS.</td>
    </tr>
    <tr>
      <td valign="top"><apll>)WSID name</apll></td>
      <td></td>
      <td></td>
      <td>Sets the workspace name to ''name''. The prior name is displayed</td>
    </tr>


{| border="1" cellpadding="5" cellspacing="0" rules="none" summary=""
    </table>
|-
  </td>
||<apll>⎕WSID←R</apll>
</tr>
||sets the name of the workspace to the value of <apll>R</apll>.
</table>
|}
<br />
<br />
For a clear WS, ⎕WSID will return null; for a named WS, will return the full file name of the current workspace. NARS2000 will not validate the string passed to {quad}WSID, you must be certain it is a valid file name. A workspace name may include spaces; in fact, you can only insert spaces within the workspace name through the '''⎕WSID''' system variable; the [[System Command WSID|)WSID]] command will truncate a workspace name at the first space.
When you begin using an APL interpreter, the Session Manager presents you with a blank screen, and your workspace has a blank name, it's known as a CLEAR WS. In order to be able to save your workspace, you must give it a name. You can do this without saving the workspace, by issuing a <apll>)WSID</apll> command followed by the workspace name, or assigning the name to the <apll>⎕WSID</apll> system variable.  You can also name the workspace with the [[System Command SAVE|)SAVE]] command.


This example is from Windows 7:<br/>
For a clear WS, <apll>⎕WSID</apll> returns an empty vector; for a named WS, returns the full file name of the current workspace.
<apll>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)wsid<br/>
IS CLEAR WS<br/>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;⎕wsid<br/>
<br/>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)wsid april<br/>
WAS CLEAR WS<br/>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;⎕wsid<br/>
C:\Users\Programmer\AppData\Roaming\NARS2000\workspaces\april<br/>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)wsid<br/>
IS april<br/>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;⎕wsid←'March'<br/>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)wsid<br/>
IS March<br/>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;⎕wsid<br/>
C:\Users\Programmer\AppData\Roaming\NARS2000\workspaces\March<br/>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;⎕wsid←'This is My Workspace'<br/>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)wsid<br/>
IS This is My Workspace<br/>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;⎕wsid<br/>
C:\Users\Programmer\AppData\Roaming\NARS2000\workspaces\This is My Workspace<br/>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)WSID This is mine<br/>
WAS This is My Workspace<br/>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;⎕WSID<br/>
C:\Users\Programmer\AppData\Roaming\NARS2000\workspaces\This<br/>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)wsid<br/>
IS This</apll><br/>


<br/>
Issuing the <apll>)WSID</apll> command without an argument lists the current name of the workspace. Otherwise it changes the name of the workspace to the argument and reports the prior name. Because a space is a value separator, in order to give a workspace a name with spaces in it through the <apll>)WSID</apll> command, you must enclose it in double quote marks.  Without the double quote marks, the name will be chopped at the first space; underlines may be used instead. Case is preserved on the <apll>)WSID</apll> or <apll>⎕WSID</apll> argument.


{{System Variables}}
NARS2000 will not validate the string passed to <apll>)WSID</apll> nor to <apll>⎕WSID</apll> &mdash; you must be certain it is a valid file name. A workspace name specified by the <apll>⎕WSID</apll> system variable may include spaces; the <apll>)WSID</apll> command requires the workspace name to be enclosed in double quote marks.


This example is from Windows 7:
<apll><pre>
      )wsid
IS CLEAR WS
      )WSID
IS CLEAR WS
      ⎕WSID


<h1>)WSID - Name the current workspace</h1>
      )wsid / {comment} Note this is a bad name
When you begin using the APL interpreter, the Session Manager presents you with a blank screen, and your workspace has a blank name, it's known as a CLEAR WS. In order to be able to save your workspace, you must give it a name. You can do this without saving the workspace, by issuing a ''')WSID''' command followed by the workspace name.  You can also name the workspace by doing the same thing with the [[System Command SAVE|)SAVE]] command.
WAS CLEAR WS
 
      )wsid
Issuing the )WSID command without an argument lists the current name of the workspace. Otherwise it changes the name of the workspace to the argument and reports the prior name. Because a space is a value separator, you cannot give a workspace a name with spaces in it, the name will be chopped at the first space; underlines may be used instead. If you want to create a name with a space you must use the {quad}WSID system function instead. Case is preserved on the WSID argument.
IS /
 
      )wsid big
The command works like this:<code><br/>
WAS /
:)WSID<br/>
      )wsid hello there
IS CLEAR WS<br/>
WAS big
:)wsid big<br/>
      )wsid
WAS CLEAR WS<br/>
IS hello
:)wsid hello there<br/>
      )wsid "hello there"
WAS big<br/>
WAS hello
:)wsid<br>
      )wsid
IS hello<br/>
IS hello there
:)wsid x_5<br/>
      )wsid x_5
WAS hello<br/>
WAS hello
:)wsid<br/>
      )wsid
IS x_5
IS x_5
:)Wsid Mixed_Case
      )Wsid Mixed_Case
WAS x_5
WAS x_5
:)wsid
      )wsid
IS Mixed_Case
IS Mixed_Case
           
      )wsid april
</code>
WAS Mixed_Case
      ⎕wsid
C:\Users\Programmer\AppData\Roaming\NARS2000\workspaces\april
      )wsid
IS april
      ⎕wsid←'March'
      )wsid
IS March
      ⎕wsid
C:\Users\Programmer\AppData\Roaming\NARS2000\workspaces\March
      ⎕wsid←'This is My Workspace'
      )wsid
IS This is My Workspace
      ⎕wsid
C:\Users\Programmer\AppData\Roaming\NARS2000\workspaces\This is My Workspace
      )WSID "This is mine"
WAS This is My Workspace
      ⎕WSID
C:\Users\Programmer\AppData\Roaming\NARS2000\workspaces\This is mine
      )wsid
IS This is mine</pre></apll>


The equivalent System Variable to allow a function to set or retrieve the workspace name is [[System Variable WSID|{quad}WSID]].


{{Commands}}
{{System Variables}}
{{article footer}}
{{Commands|WSID}}
{{Article footer|0|NO}}
[[Category:System variables]]

Latest revision as of 15:55, 13 October 2019

⎕WSID - Set or retrieve Workspace ID

)WSID - Display or Name the Current Workspace

Z←⎕WSID returns the current file name of the workspace.
Z is a character vector.
⎕WSID←R sets the name of the workspace to the value of R.
)WSID displays the current workspace name or CLEAR WS.
)WSID name Sets the workspace name to name. The prior name is displayed


When you begin using an APL interpreter, the Session Manager presents you with a blank screen, and your workspace has a blank name, it's known as a CLEAR WS. In order to be able to save your workspace, you must give it a name. You can do this without saving the workspace, by issuing a )WSID command followed by the workspace name, or assigning the name to the ⎕WSID system variable. You can also name the workspace with the )SAVE command.

For a clear WS, ⎕WSID returns an empty vector; for a named WS, returns the full file name of the current workspace.

Issuing the )WSID command without an argument lists the current name of the workspace. Otherwise it changes the name of the workspace to the argument and reports the prior name. Because a space is a value separator, in order to give a workspace a name with spaces in it through the )WSID command, you must enclose it in double quote marks. Without the double quote marks, the name will be chopped at the first space; underlines may be used instead. Case is preserved on the )WSID or ⎕WSID argument.

NARS2000 will not validate the string passed to )WSID nor to ⎕WSID — you must be certain it is a valid file name. A workspace name specified by the ⎕WSID system variable may include spaces; the )WSID command requires the workspace name to be enclosed in double quote marks.

This example is from Windows 7: 

      )wsid
IS CLEAR WS
      )WSID
IS CLEAR WS
      ⎕WSID

      )wsid / ⍝ Note this is a bad name
WAS CLEAR WS
      )wsid
IS /
      )wsid big
WAS /
      )wsid hello there
WAS big
      )wsid
IS hello
      )wsid "hello there"
WAS hello
      )wsid
IS hello there
      )wsid x_5
WAS hello
      )wsid
IS x_5
      )Wsid Mixed_Case
WAS x_5
      )wsid
IS Mixed_Case
      )wsid april
WAS Mixed_Case
      ⎕wsid
C:\Users\Programmer\AppData\Roaming\NARS2000\workspaces\april
      )wsid
IS april
      ⎕wsid←'March'
      )wsid
IS March
      ⎕wsid
C:\Users\Programmer\AppData\Roaming\NARS2000\workspaces\March
      ⎕wsid←'This is My Workspace'
      )wsid
IS This is My Workspace
      ⎕wsid
C:\Users\Programmer\AppData\Roaming\NARS2000\workspaces\This is My Workspace
      )WSID "This is mine"
WAS This is My Workspace
      ⎕WSID
C:\Users\Programmer\AppData\Roaming\NARS2000\workspaces\This is mine
      )wsid
IS This is mine


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
System Commands (not case sensitive)
)CLEAR )CLOSE )COPY )DROP )EDIT )ERASE )EXIT )FNS )FOP )FOPS
)IN )INASCII )LIB )LOAD )NEWTAB )NMS )OFF )OPEN )OPS )OUT
)RESET )SAVE )SI )SIC )SINL )SYMB )ULIB )VARS )XLOAD )WSID


See Also
System Commands System Variables and Functions Operators


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