System Command EDIT - Revision history

Paul Robinson: t/c

2019-10-13T20:23:51Z

t/c

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Paul Robinson: explain & add cat

2019-10-13T20:19:56Z

explain & add cat

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Sudleyplace at 15:31, 17 April 2018

2018-04-17T15:31:35Z

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	The ~~'''~~)EDIT~~'''~~ command is used to edit an APL function. There are ~~two~~ forms:		The <apll>)EDIT</apll> command is used to edit an APL function. There are several forms:
	~~:'''~~)EDIT~~'''~~		<apll><pre>
			)EDIT
			</pre></apll>
	and		and
	~~:'''~~)EDIT ''function~~'' '''~~		<apll><pre>
			)EDIT function
			</pre></apll>
	(or)		(or)
	~~:'''~~)EDIT ~~''leftarg←function~~ rightarg;local1;local2~~'' ''' etc.~~		<apll><pre>
			)EDIT result←leftarg function rightarg;local1 local2
			</pre></apll>
	where ''function'' is the name of the function to edit. If the function exists, an edit window will be opened and the function will be shown in the window. If the function does not exist, a new edit window will open with an empty function other than the function name on line 0.		where ''function'' is the name of the function to edit. If the function exists, an edit window will be opened and the function will be shown in the window. If the function does not exist, a new edit window will open with an empty function other than the function name on line 0.

	Function names, like variables, are case sensitive. '''PI''', '''Pi''', '''pI''', and '''pi''' are four different identifiers.		Function names, like variables, are case sensitive. '''PI''', '''Pi''', '''pI''', and '''pi''' are four different identifiers.

	If ~~'''~~)EDIT~~'''~~ is used with no function name specified, a new edit window will open and a blank line 0 will be presented to allow you to enter the function header. The function header can be typed in to this window on line 0 (without using the prefix del (<~~big~~>~~<apl>{del}~~</~~apl></big~~>) symbol.) Note that to close the edit window, you type Control-E, '''do not''' place the <~~big~~>~~{del}~~</~~big~~> symbol on the function header or use it to attempt to close the function by placing it on the last line of the function; the function editor will raise a syntax error and refuse to save the function with a warning of a SYNTAX ERROR if a ~~{del}~~ appears in the function header; having a ~~{del}~~ within the function ~~will result~~ in a ~~SYNTAX ERROR when~~ the function is executed.		If <apll>)EDIT</apll> is used with no function name specified, a new edit window will open and a blank line 0 will be presented to allow you to enter the function header. The function header can be typed in this window on line 0 (without using the prefix del (<apll>∇</apll>) symbol.) Note that to close the edit window, you type Control-E, '''do not''' place the <apll>∇</apll> symbol on the function header or use it to attempt to close the function by placing it on the last line of the function; the function editor will raise a syntax error and refuse to save the function with a warning of a SYNTAX ERROR if a <apll>∇</apll> appears in the function header; having a <apll>∇</apll> within the function results in a recursive call to the function when it is executed.

	The ~~'''~~)EDIT~~'''~~ command is treated exactly as the <~~big><apl>{del}</apl~~></~~big~~> symbol, a <~~big><apl>{del}</apl~~></~~big~~> used alone opens a blank window to edit a new function, <~~big><apl>{del}</apl~~></~~big~~> followed by the name of a function opens a window containing the existing function for editing, or opens a new window to define the contents of the function.		The <apll>)EDIT</apll> command is treated exactly as the <apll>∇</apll> symbol, a <apll>∇</apll> used alone opens a blank window to edit a new function, <apll>∇</apll> followed by the name of a function opens a window containing the existing function for editing, or opens a new window to define the contents of the function.

	A new function may be defined via the )EDIT function or the <~~big><apl>{del}</apl~~></~~big~~> symbol, so that		A new function may be defined via the <apll>)EDIT</apll> function or the <apll>∇</apll> symbol, so that
	:)EDIT z←function5 r;⎕IO
			<apll><pre>
			)EDIT z←function5 r;⎕IO
			</pre></apll>
	or		or
	:∇ z←function5 r;⎕IO		<apll><pre>
	~~Are~~ identical. Note that arguments are ignored on the )EDIT or <~~big~~><~~apl>{del}</apl~~></~~big~~> symbol if the function is already defined; if you want to change the function header of an already defined function, you must edit it directly.		∇ z←function5 r;⎕IO
			</pre></apll>

			are identical. Note that arguments are ignored on the <apll>)EDIT</apll> or <apll>∇</apll> symbol if the function is already defined; if you want to change the function header of an already defined function, you must edit it directly.


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Paul Robinson at 06:18, 14 March 2013

2013-03-14T06:18:45Z

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Paul Robinson at 11:45, 13 March 2013

2013-03-13T11:45:07Z

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	Function names, like variables, are case sensitive. '''PI''', '''Pi''', '''pI''', and '''pi''' are four different identifiers.		Function names, like variables, are case sensitive. '''PI''', '''Pi''', '''pI''', and '''pi''' are four different identifiers.

	If ''')EDIT''' is used with no function name specified, a new edit window will open and a blank line 0 will be presented. The function header can be typed in to this window on ~~this~~ line (without using the prefix del (<big><apl>{del}</apl></big>) symbol.) Note that to close the edit window, you type Control-D, '''do not''' place the <big>{del}</big> symbol on the function header or use it to attempt to close the function; ~~this~~ will result in ~~an error~~ when the function is executed.		If ''')EDIT''' is used with no function name specified, a new edit window will open and a blank line 0 will be presented to allow you to enter the function header. The function header can be typed in to this window on line 0 (without using the prefix del (<big><apl>{del}</apl></big>) symbol.) Note that to close the edit window, you type Control-E, '''do not''' place the <big>{del}</big> symbol on the function header or use it to attempt to close the function by placing it on the last line of the function; the function editor will raise a syntax error and refuse to save the function with a warning of a SYNTAX ERROR if a {del} appears in the function header; having a {del} within the function will result in a SYNTAX ERROR when the function is executed.

	The ''')EDIT''' command is treated exactly as the <big><apl>{del}</apl></big> symbol, a <big><apl>{del}</apl></big> used alone opens a blank window to edit a new function, <big><apl>{del}</apl></big> followed by the name of a function opens a window containing the existing function for editing, or opens a new window to define the contents of the function.		The ''')EDIT''' command is treated exactly as the <big><apl>{del}</apl></big> symbol, a <big><apl>{del}</apl></big> used alone opens a blank window to edit a new function, <big><apl>{del}</apl></big> followed by the name of a function opens a window containing the existing function for editing, or opens a new window to define the contents of the function.

Paul Robinson at 11:39, 13 March 2013

2013-03-13T11:39:45Z

← Older revision		Revision as of 07:39, 13 March 2013
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	The ''')EDIT''' command is used to edit an APL function. There are two forms:		The ''')EDIT''' command is used to edit an APL function. There are two forms:
	:)EDIT		:''')EDIT'''
	and		and
	:)EDIT ''function''		:''')EDIT ''function'' '''
			(or)
			:''')EDIT ''leftarg←function rightarg;local1;local2'' ''' etc.
	where ''function'' is the name of the function to edit. If the function exists, an edit window will be opened and the function will be shown in the window. If the function does not exist, a new edit window will open with an empty function other than the function name on line 0.		where ''function'' is the name of the function to edit. If the function exists, an edit window will be opened and the function will be shown in the window. If the function does not exist, a new edit window will open with an empty function other than the function name on line 0.

	Function names, like variables, are case sensitive. '''PI''', '''Pi''', '''pI''', and '''pi''' are four different identifiers.		Function names, like variables, are case sensitive. '''PI''', '''Pi''', '''pI''', and '''pi''' are four different identifiers.

	If ''')EDIT''' is used with no function name specified, a new edit window will open and a blank line 0 will be presented. The function can be typed in to this window on this line (without using the prefix del (<big><apl>{del}</apl></big>) symbol.)		If ''')EDIT''' is used with no function name specified, a new edit window will open and a blank line 0 will be presented. The function header can be typed in to this window on this line (without using the prefix del (<big><apl>{del}</apl></big>) symbol.) Note that to close the edit window, you type Control-D, '''do not''' place the <big>{del}</big> symbol on the function header or use it to attempt to close the function; this will result in an error when the function is executed.

	The ''')EDIT''' command is treated exactly as the <big><apl>{del}</apl></big> symbol, a <big><apl>{del}</apl></big> used alone opens a blank window to edit a new function, <big><apl>{del}</apl></big> followed by the name of a function opens a window containing the existing function for editing, or opens a new window to define the contents of the function.		The ''')EDIT''' command is treated exactly as the <big><apl>{del}</apl></big> symbol, a <big><apl>{del}</apl></big> used alone opens a blank window to edit a new function, <big><apl>{del}</apl></big> followed by the name of a function opens a window containing the existing function for editing, or opens a new window to define the contents of the function.

			A new function may be defined via the )EDIT function or the <big><apl>{del}</apl></big> symbol, so that
			:)EDIT z←function5 r;⎕IO
			or
			:∇ z←function5 r;⎕IO
			Are identical. Note that arguments are ignored on the )EDIT or <big><apl>{del}</apl></big> symbol if the function is already defined; if you want to change the function header of an already defined function, you must edit it directly.


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Paul Robinson: more detail

2013-02-22T01:49:31Z

more detail

← Older revision		Revision as of 21:49, 21 February 2013
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	The ''')EDIT''' command is used to edit an APL function~~. The command is entered into the session manager~~. There are two forms		The ''')EDIT''' command is used to edit an APL function. There are two forms:
	:)EDIT		:)EDIT
	and		and
Line 5:		Line 5:
	where ''function'' is the name of the function to edit. If the function exists, an edit window will be opened and the function will be shown in the window. If the function does not exist, a new edit window will open with an empty function other than the function name on line 0.		where ''function'' is the name of the function to edit. If the function exists, an edit window will be opened and the function will be shown in the window. If the function does not exist, a new edit window will open with an empty function other than the function name on line 0.

	If '''~~)EDIT~~''' ~~is used with no function name specified~~, ~~a new edit window will open~~ and ~~a blank line 0 will be presented. The function can be typed in (minus the prefix del <apl>{del}</apl> symbol~~.)		Function names, like variables, are case sensitive. '''PI''', '''Pi''', '''pI''', and '''pi''' are four different identifiers.

	The ''')EDIT''' command is treated exactly as the ~~del (~~<apl>{del}</apl>) symbol, a del used alone opens a blank window to edit a new function, del followed by the name of a function opens a window containing the existing function for editing or opens a new window to define the contents of the function.		If ''')EDIT''' is used with no function name specified, a new edit window will open and a blank line 0 will be presented. The function can be typed in to this window on this line (without using the prefix del (<big><apl>{del}</apl></big>) symbol.)

			The ''')EDIT''' command is treated exactly as the <big><apl>{del}</apl></big> symbol, a <big><apl>{del}</apl></big> used alone opens a blank window to edit a new function, <big><apl>{del}</apl></big> followed by the name of a function opens a window containing the existing function for editing, or opens a new window to define the contents of the function.

	{{Commands}}		{{Commands}}

Paul Robinson: new

2013-02-22T00:30:54Z

new

New page

The ''')EDIT''' command is used to edit an APL function. The command is entered into the session manager. There are two forms
:)EDIT
and
:)EDIT ''function''
where ''function'' is the name of the function to edit. If the function exists, an edit window will be opened and the function will be shown in the window. If the function does not exist, a new edit window will open with an empty function other than the function name on line 0.

If ''')EDIT''' is used with no function name specified, a new edit window will open and a blank line 0 will be presented. The function can be typed in (minus the prefix del <apl>{del}</apl> symbol.)

The ''')EDIT''' command is treated exactly as the del (<apl>{del}</apl>) symbol, a del used alone opens a blank window to edit a new function, del followed by the name of a function opens a window containing the existing function for editing or opens a new window to define the contents of the function.

{{Commands}}