#while

{{#while:
 | <condition text>
 | <block statement>
}}

示例

{{#vardefine: i | 0 }}{{#while:
 | {{#ifexpr: {{#var: i }} < 5 | true }}
 | <nowiki />
* {{#var: i }}{{#vardefine: i | {{#expr: {{#var: i }} + 1 }} }}
}}

• 0
• 1
• 2
• 3
• 4

{{#while}} can also be used in a template to simulate a numbered array. If the page "Template:Loops Test" contains

{{#vardefine: i | 0 }}{{#while:
 | {{{arg{{#var: i }} |}}}
 | <nowiki />
* {{{arg{{#var: i }} }}}{{#vardefine: i
   | {{#expr: {{#var: i }} + 1 }}
 }}
}}

{{Loops Test
 |arg0=zero
 |arg1=one
 |arg2=two
 |arg3=three
 |arg4=four
}}

• zero
• one
• two
• three
• four

It's important to note that whitespace, including newlines, tabs, and spaces, is stripped from the beginning and end of all the arguments of these parser functions. If this is not desirable, adding any non-whitespace characters (including the HTML encoding for a whitespace character  ) will prevent further stripping (hence the ‎<nowiki> tags in the above examples).

#dowhile

{{#dowhile}} performs exactly like {{#while}}, with the exception that the block statement is guaranteed to be parsed and displayed (if it results in displayable text) at least once. This is done before the condition text is evaluated.

#loop

{{#loop: <variable name>
 | <starting value>
 | <number of loops to be performed>
 | <wiki markup>
}}

{{#loop}} repeatedly parses and displays <wiki markup> a number of times equal to the absolute value of <number of loops to be performed>. <Starting value> is placed in a variable (accessible by Variables extension's {{#var:}} parser function) using the name <variable name>. After each loop, the variable is incremented by one if <number of loops to be performed> is positive, or decremented by one if <number of loops to be performed> is negative.

Examples

The following code:

{{#loop: varname
 | 4
 | 4
 | <nowiki />
* This is round {{#var: varname }} and we have {{#expr: 7 - {{#var: varname }} }} more to go
}}

• This is round 4 and we have 3 more to go
• This is round 5 and we have 2 more to go
• This is round 6 and we have 1 more to go
• This is round 7 and we have 0 more to go

#forargs (experimental)

{{#forargs: <prefix>
 | <key>
 | <value>
 | <block statement>
}}

Example

{{#forargs: arg
 | key
 | value
 | <nowiki />
* {{#var: key }} = {{#var: value }}
}}

{{Loops Test
 | arg1=val1
 | spam=spammity
 | arg5=val5
 | argument=value
}}

produces

• 1 = val1
• 5 = val5
• ument = value

#fornumargs (experimental)

{{#fornumargs: <key>
 | <value>
 | <block statement>
}}

{{Template
 | 1=one
 | 2=two
}}

{{Template
 | one
 | two
}}

Examples

{{#fornumargs: number
 | value
 | <nowiki />
* {{#var: number }} = {{#var: value }}
}}

{{Loops Test
  | Apricot
  | B = Bolognese
  | Caramel slice
  | 5 = Eclair
}}

• 1 = Apricot
• 2 = Caramel slice
• 5 = Eclair