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General usage and invocation syntax: Difference between revisions
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;Parsing procedure
Wiki markup expansion ''does not take place'' before the commands are handed over to the extension module.
* This may be useful if you want to pass wiki syntax elements to DPL3 as arguments (see the
* [[mw:Magic words|Magic words]] like <code><nowiki>{{PAGENAME}}</nowiki></code> or <code><nowiki>{{CURRENTDAY}}</nowiki></code> '''cannot''' be used.
* Template calls like <code><nowiki>{{{some template}}}</nowiki></code>, cannot be used as parameters.
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==Built-in variables==
Within a DPL statement you can use some [[DPL format variables|variables]] which are implicitly set by DPL.
Example: %TITLE%, %PAGE%
Some [[DPL format variables|variables]] can only be used in the header or footer, like e.g. %PAGES%, %TOTALPAGES%
==URL parameters==
DPL understands a couple of parameters which can be passed via an URL specification. These URL-parameters all start with DPL_:
* DPL_count: influences the
* DPL_offset: influences the
* DPL_refresh: if used with a value of 'yes' this will clear the DPL cache
* DPL_fromTitle: restrict the selection to articles with a page title greater or equal to the specified value
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<center style="border:1px black solid"><big>'''''Normally DPL does not return its own page in the result.'''''</big></center>
* The parameter
* You can suppress back references to a page containing a DPL query by using
==Symbol replacement in ''mode=userformat''==
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resultsfooter=«/nowiki»«/pre»
The same effect can be achieved with
==Table output==
We'd also like to point out that there are two special commands named
==Scrolling==
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The command <code>scroll=yes</code> must be given to enable scrolling.
DPL can take certain URL parameters from the command line, like &DPL_fromTitle and &DPL_toTitle. If these arguments are given the commands <code>title></code> and <code>title<</code> will implicitly be set. Within the
Basically the idea of backward scrolling is that the SQL statement produces a DESCENDING order (with titles below the threshold). Internally DPL buffers the SQl result set and reverses its order. So the user will see a page of entries directly below the threshold, but in ascending order.
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