Wikipedia>Bsherr: /* Sample 1 */replacing Template:Tld with Template:Tlc, plus general and typo fixes as found

2020-08-09T22:50:24Z

Sample 1: replacing Template:Tld with Template:Tlc, plus general and typo fixes as found

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This template calls template {{{2}}} with parameter {{{3}}} and adds a newline at the end, all under condition {{{1}}}. Successive calls should ''not'' be separated by a newline.

This templates has been used to avoid writing out the condition twice, once for the template call and once for the newline, but also [[Template:If]] can be used to preserve newlines.

==Usage==
===Sample 1===
Example using [[Template:2x]], which simply repeats its argument twice, so <code><nowiki>{{2x|Pizza}}</nowiki></code> produces {{2x|Pizza}}. One can combine this with {{tlc|Conditional template call with newline}} in the following code

<code><nowiki>{{#tag:pre|{{Conditional template call with newline|1|2x|Pizza}}{{Conditional template call with newline|0|2x|Bora}}{{Conditional template call with newline|1|2x|Bang}}}}</nowiki></code>

:which produces

{{#tag:pre|{{Conditional template call with newline|1|2x|Pizza}}{{Conditional template call with newline|0|2x|Bora}}{{Conditional template call with newline|1|2x|Bang}}}}

Notice how {{2x|Bora}} is suppressed, and there is a newline between {{2x|Pizza}} and {{2x|Bang}}.

===Sample 2===
Sample usage with full substitution of the template to create a newline in wikitext.

1. Create a sample template : "[[Template:testnewline]]"
<pre style="overflow:auto">
ABC{{<includeonly>subst:</includeonly>Conditional template call with newline|{{<includeonly>subst:</includeonly>#ifeq:{{{align|}}}|{{{align}}}|1|0}}|void|1|substctc=subst:|subst=subst:}}
DEF
</pre>

2. When called empty (<nowiki>{{subst:testnewline}}</nowiki>), it generates the following wikitext:
<pre>
ABC
DEF
</pre>

3. When called as <nowiki>{{subst:testnewline|align=somevalue}}</nowiki>, it generates the following wikitext (note the newline):
<pre>
ABC

DEF
</pre>

==Parameters==
===Mandatory parameters===
;<kbd>1</kbd>: 1st unnamed parameter, a condition to be evaluated. Should result in 1 for true or 0 for false. One can use the result 0 or 1 directly. If the condition is true, the second template will be called and a newline added afterwards. <br>Sample condition: <nowiki>{{#ifeq:{{{align|}}}|{{{align}}}|1|0}}</nowiki>. The condition is true if the template is called with a parameter "align=somevalue", it's false if align is not included.
;<kbd>2</kbd>: 2nd unnamed parameter, the name of template to be called. <br> Can be "!" for [[Template:!]] or even "void" for [[Template:Void]]

===Optional parameters===
;<kbd>3</kbd>: 3rd unnamed parameter, value to be assigned to {{{1}}} when calling template {{{2}}}
;<kbd>substctc</kbd>: for substitution of some parser functions and auxiliary templates called inside the template, use the value "subst:"; recommended when the template is substituted; note that in that case any parser functions or templates in the condition have to be substituted too.
;<kbd>subst</kbd>: for substitution of template {{{2}}}, use the value "subst:"
;<kbd>p1n</kbd>: name of an additional parameter used by template {{{2}}}
;<kbd>p1v</kbd>: value to be assigned to {{{p1n}}} when calling template {{{2}}}

<includeonly>
</includeonly>

Template:Conditional template call with newline/doc - Revision history

Wikipedia>Bsherr: /* Sample 1 */replacing Template:Tld with Template:Tlc, plus general and typo fixes as found