Template:Template usage: Difference between revisions

Revision as of 20:25, 27 June 2015

Phase one of two: a test regexp /{{{pattern}}}/.[{{fullurl:Special:Search|search=hastemplate%3AVal++intitle%3ATemplate%3ATemplate+usage Perform a search for template Val ] on just this page.

@@ Line 22: / Line 22: @@
    -->{{{pattern}}}/<!--User part: the sub-pattern regexp, match within template.
    And you see the ending / of the regexp/.
-  Now add a filter to the search domain.  These are expensive searches.
+-->}}<!-- end #if:pattern. No else part. Nothing to do if no pattern is given.
-  Start with a space.
+   There's always the hastemplate part, even if no insource:/regexp/ part.
--->}}<!-- end of #if: pattern, there's nothing to do if no pattern is given.
-   There's only hastemplate part, but nothing to do for insource:/regexp/ part.
+  There's also always another filter, usually prefix, but defaults to intitle.
-   Always do the ''prefix:'' search parameter.
+   Always add a filter to the search domain to make the search less expensive.
    Never let all namespaces be searched at once because user defaults to that.
    Purpose of this template: make inefficient searches fast via tests/limits.
---> prefix:{{#switch:{{{prefix}}}
+  Start with a space.
-|#default = {{FULLPAGENAME}}
+--> {{#if:{{{prefix|}}} |
-|n = {{NAMESPACE}}:
+  {{#switch:{{{prefix}}}
-|0|: = {{ns:0}}:
+    |#default = prefix:{{{prefix}}}
-|1 = {{ns:1}}:
+    |n = prefix:{{NAMESPACE}}:
-|2 = {{ns:2}}:
+    |0|: = prefix:{{ns:0}}:
-|3 = {{ns:3}}:
+    |1 = prefix:{{ns:1}}:
-|4 = {{ns:4}}:
+    |2 = prefix:{{ns:2}}:
-|5 = {{ns:5}}:
+    |3 = prefix:{{ns:3}}:
-|6 = {{ns:6}}:
+    |4 = prefix:{{ns:4}}:
-|7 = {{ns:7}}:
+    |5 = prefix:{{ns:5}}:
-|8 = {{ns:8}}:
+    |6 = prefix:{{ns:6}}:
-|9 = {{ns:9}}:
+    |7 = prefix:{{ns:7}}:
-|10 = {{ns:10}}:
+    |8 = prefix:{{ns:8}}:
-|11 = {{ns:11}}:
+    |9 = prefix:{{ns:9}}:
-|12 = {{ns:12}}:
+    |10 = prefix:{{ns:10}}:
-|13 = {{ns:13}}:
+    |11 = prefix:{{ns:11}}:
-|14 = {{ns:14}}:
+    |12 = prefix:{{ns:12}}:
-|15 = {{ns:15}}:
+    |13 = prefix:{{ns:13}}:
-|100 = {{ns:100}}:
+    |14 = prefix:{{ns:14}}:
-|101 = {{ns:101}}:
+    |15 = prefix:{{ns:15}}:
-|108 = {{ns:108}}:
+    |100 = prefix:{{ns:100}}:
-|109 = {{ns:109}}:
+    |101 = prefix:{{ns:101}}:
-|118 = {{ns:118}}:
+    |108 = prefix:{{ns:108}}:
-|119 = {{ns:119}}:
+    |109 = prefix:{{ns:109}}:
-}}}}}}</span> Perform a search {{#if:{{{pattern|}}}
+    |118 = prefix:{{ns:118}}:
+    |119 = prefix:{{ns:119}}:
+  }}<!-- else if prefix not given, filter down to current page name
+  -->| intitle:{{FULLPAGENAME}}}}}}</span> Perform a search {{#if:{{{pattern|}}}
 | within all instances of | for }} template {{ucfirst: {{{template|val}}}}} ] <!--
@@ Line 90: / Line 93: @@
 |119 = in the {{ns:119}} namespace.
 |#default = in all titles starting with the characters "{{{prefix}}}".
-Or choose a [[H:S| prefix filter]] from: {{namespaces}}
 }}</onlyinclude>