While loops - Revision history

Cail at 17:06, 27 May 2007

2007-05-27T17:06:31Z

← Older revision		Revision as of 17:06, 27 May 2007
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	; Find the ''n<sup>th</sup>'' user in the channel.		; Find the ''n<sup>th</sup>'' user in the channel.
	var %nick = $nick(#,%i)		var %nick = $nick(#,%i)

	; Add ''%nick'' to ''%people'' using [[$chr]](44) (a comma) as the delimiter.		; Add ''%nick'' to ''%people'' using [[$chr]](44) (a comma) as the delimiter.
	var %people = [[$addtok]](%people,%nick,44)		var %people = [[$addtok]](%people,%nick,44)

Cail: put the comments on their own lines

2007-05-27T17:06:05Z

put the comments on their own lines

← Older revision		Revision as of 17:06, 27 May 2007
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	Example shows how to get a list of users in the channel:		Example shows how to get a list of users in the channel:
	[[var]] %i = [[$nick]](#,0) ~~;Sets ''%i'' to the amount of users in the channel.~~		; Sets ''%i'' to the amount of users in the channel.
			[[var]] %i = [[$nick]](#,0)
	while (%i) {		while (%i) {
	~~var %nick = $nick(#,%i)~~ ;Find the ''n<sup>th</sup>'' user in the channel.		; Find the ''n<sup>th</sup>'' user in the channel.
	var %~~people~~ = [[$~~addtok]]~~(~~%people~~,%~~nick,44~~) ;Add ''%nick'' to ''%people'' using [[$chr]](44) (a comma) as the delimiter.		var %nick = $nick(#,%i)

			; Add ''%nick'' to ''%people'' using [[$chr]](44) (a comma) as the delimiter.
			var %people = [[$addtok]](%people,%nick,44)
	[[dec]] %i		[[dec]] %i
	}		}

Cail: added an example loop for listing stuff into a var

2007-01-28T20:01:53Z

added an example loop for listing stuff into a var

@@ Line 73: / Line 73: @@
    inc %i
+  }
 == See Also ==
 * [[If-Then-Else]]
 [[Category:Commands]]

Microbe: mostly modified links

2007-01-27T13:35:28Z

mostly modified links

← Older revision		Revision as of 13:35, 27 January 2007
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	while (expression) { commands }		while (expression) { commands }

	The expression is evaluated in the same manner as [[If-Then-Else]] expressions are evaluted. If the expression is [[$true]] the commands inside the brackets are run while the expression remains [[$true]].		The expression is evaluated in the same manner as [[If-Then-Else]] expressions are evaluted and it uses the same operators. If the expression is $true the commands inside the brackets are run while the expression remains $true.

	You can break out of the while loop by issuing the break command, or jump to the start of the while loop by issuing the continue command.		You can break out of the while loop by issuing the [[break]] command, or jump to the start of the while loop by issuing the [[continue]] command.

	Every time the while loop jumps back to the top, the expression is ~~revaluated~~.		Every time the while loop jumps back to the top, the expression is re-evaluated.


	'''Note:''' If the expression evaluation changes to [[$false]] during the while loop you will not break out of the while loop until the while loop has ~~completed~~.		'''Note:''' If the expression evaluation changes to [[$false]] during the while loop you will not break out of the while loop until the while loop has reached the end of its contents.
	== Examples ==		== Examples ==

Doomie: ) too much

2005-12-22T20:07:42Z

) too much

← Older revision		Revision as of 20:07, 22 December 2005
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	while (%i) {		while (%i) {
	var %nick = $nick(#,%i) ;Find the ''n<sup>th</sup>'' user in the channel.		var %nick = $nick(#,%i) ;Find the ''n<sup>th</sup>'' user in the channel.
	var %people = [[$addtok]](%people,%nick),44) ;Add ''%nick'' to ''%people'' using [[$chr]](44) (a comma) as the delimiter.		var %people = [[$addtok]](%people,%nick,44) ;Add ''%nick'' to ''%people'' using [[$chr]](44) (a comma) as the delimiter.
	[[dec]] %i		[[dec]] %i
	}		}

Doomie: ehm, $nick(#,0) returns total number of people in the channel, not $chan(#,0)

2005-12-22T20:06:12Z

ehm, $nick(#,0) returns total number of people in the channel, not $chan(#,0)

← Older revision		Revision as of 20:06, 22 December 2005
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	== Examples ==		== Examples ==

	Example shows how to get a list of users in the ~~channel~~ channel:		Example shows how to get a list of users in the channel:
	[[var]] %i = [[$~~chan~~]](#,0) ;Sets ''%i'' to the amount of users in the channel.		[[var]] %i = [[$nick]](#,0) ;Sets ''%i'' to the amount of users in the channel.
	while (%i) {		while (%i) {
	var %nick = $~~chan~~(#,%i) ;Find the ''n<sup>th</sup>'' user in the channel.		var %nick = $nick(#,%i) ;Find the ''n<sup>th</sup>'' user in the channel.
	var %people = [[$addtok]](%people,%nick),44) ;Add ''%nick'' to ''%people'' using [[$chr]](44) (a comma) as the delimiter.		var %people = [[$addtok]](%people,%nick),44) ;Add ''%nick'' to ''%people'' using [[$chr]](44) (a comma) as the delimiter.
	[[dec]] %i		[[dec]] %i
	}		}
	[[echo]] -ag Current channel users: %people		[[echo]] -ag Current channel users: %people


			Example shows how to loop through all channels and echo the number of people in these channels.
			var %i = 1
			; loop from 1 to total number of channels
			while (%i <= [[$chan]](0)) {
			; echo it
			echo -ag Channel: $chan(%i) Nicks: $nick($chan(%i),0)
			; increase looping variable
			inc %i
			}

Doomie: added example about looping through a text file

2005-11-26T21:28:30Z

added example about looping through a text file

← Older revision		Revision as of 21:28, 26 November 2005
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			Example shows how to loop through a text file. Let's assume we have a "foo.txt" looking like
			This is line1
			This is line2
			This is line3

			To loop through it, you'd have to use:
			var %i = 1
			; $lines returns the total number of lines in a file
			while (%i <= [[$lines]](foo.txt)) {
			echo -a [[$read]](foo.txt,%i)
			inc %i
			}
	== See Also ==		== See Also ==
	* [[If-Then-Else]]		* [[If-Then-Else]]

	[[Category:Commands]]		[[Category:Commands]]

Albie at 13:42, 10 November 2005

2005-11-10T13:42:51Z

← Older revision		Revision as of 13:42, 10 November 2005
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	Example shows how to get a list of users in the channel channel:		Example shows how to get a list of users in the channel channel:
	[[var]] %i = [[$chan]](#,0)		[[var]] %i = [[$chan]](#,0) ;Sets ''%i'' to the amount of users in the channel.
	while (%i) {		while (%i) {
	var %people = [[$addtok]](%people~~,$chan(#~~,%i)),44)		var %nick = $chan(#,%i) ;Find the ''n<sup>th</sup>'' user in the channel.
			var %people = [[$addtok]](%people,%nick),44) ;Add ''%nick'' to ''%people'' using [[$chr]](44) (a comma) as the delimiter.
	[[dec]] %i		[[dec]] %i
	}		}
Line 36:		Line 37:
	while (%i) {		while (%i) {
	echo -ag [[$chr]](37) [[DollarPlus\|$+]] i = %i		echo -ag [[$chr]](37) [[DollarPlus\|$+]] i = %i
	if (%i == 10) { break }		if (%i == 10) { break } ;If ''%i'' has a value of ''10'' then exit the while loop, missing out any commands still left to be executed inside the while loop.
	inc %i		inc %i
	}		}

	Example shows how to use the continue command. It will echo everything from 1 to 10 except 5, as it jumps to the begin of the loop before coming to the echo command.		Example shows how to use the continue command. It will echo everything from 1 to 10 except 5, as it jumps to the begin of the loop before coming to the echo command.
	var %i = 0		var %i = 0
	while (%i < 10) {		while (%i < 10) {
	inc %i		inc %i
	if (%i == 5) { continue }		if (%i == 5) { continue } ;If ''%i'' has a value of ''5'' then jump to the start of the while loop, missing out the echo below.
	echo -ag $chr(37) $+ i == %i		echo -ag $chr(37) $+ i == %i
	}		}

Doomie: deleted link to continue and added continue-example (if you have a better one, change it please)

2005-10-16T14:57:42Z

deleted link to continue and added continue-example (if you have a better one, change it please)

← Older revision		Revision as of 14:57, 16 October 2005
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	The expression is evaluated in the same manner as [[If-Then-Else]] expressions are evaluted. If the expression is [[$true]] the commands inside the brackets are run while the expression remains [[$true]].		The expression is evaluated in the same manner as [[If-Then-Else]] expressions are evaluted. If the expression is [[$true]] the commands inside the brackets are run while the expression remains [[$true]].

	You can break out of the while loop by issuing the break command, or jump to the start of the while loop by issuing the [[continue]] command.		You can break out of the while loop by issuing the break command, or jump to the start of the while loop by issuing the continue command.

	Every time the while loop jumps back to the top, the expression is revaluated.		Every time the while loop jumps back to the top, the expression is revaluated.
Line 39:		Line 39:
	inc %i		inc %i
	}		}

			Example shows how to use the continue command. It will echo everything from 1 to 10 except 5, as it jumps to the begin of the loop before coming to the echo command.
			var %i = 0
			while (%i < 10) {
			inc %i
			if (%i == 5) { continue }
			echo -ag $chr(37) $+ i == %i
			}


	== See Also ==		== See Also ==

Doomie: removed "break"-link and added break-example

2005-10-16T14:24:44Z

removed "break"-link and added break-example

← Older revision		Revision as of 14:24, 16 October 2005
Line 7:		Line 7:
	The expression is evaluated in the same manner as [[If-Then-Else]] expressions are evaluted. If the expression is [[$true]] the commands inside the brackets are run while the expression remains [[$true]].		The expression is evaluated in the same manner as [[If-Then-Else]] expressions are evaluted. If the expression is [[$true]] the commands inside the brackets are run while the expression remains [[$true]].

	You can break out of the while loop by issuing the [[break]] command, or jump to the start of the while loop by issuing the [[continue]] command.		You can break out of the while loop by issuing the break command, or jump to the start of the while loop by issuing the [[continue]] command.

	Every time the while loop jumps back to the top, the expression is revaluated.		Every time the while loop jumps back to the top, the expression is revaluated.
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	[[inc]] %from		[[inc]] %from
	}		}

			Example shows how to use the break command:
			var %i = 1
			while (%i) {
			echo -ag [[$chr]](37) [[DollarPlus\|$+]] i = %i
			if (%i == 10) { break }
			inc %i
			}

	== See Also ==		== See Also ==