Editing Module:Galeria/doc (section)

=== How it works ===
This module gets all parameters from the parent template of {{T0|G}}, creates the attributes and values, and passes them to the ''gallery'' tag. 

The mainly invoker is  {{T|G|+|case=l}}.<br>The template G itself does nothing than to invoke this module, it does not specify any own parameters. 

The module analyzes these parameters. In special, the unnamed parameter(s) can contain an '''unlimited number''' of items.<br>

First of all, the contents of all unnamed parameters are concatenated to one string:<br>
# concatenates all pipe-separated items and separates them by an ACK
# changes also the newline separators to ACK separators.

Then when the parameter for 'format' is '''not''' specified, but
: a second parameter exists (after a pipe), ''and''
:: the first parameter is preceded by a newline, ''and''
::: the second parameter does '''not''' specify a file name, 
:then the format parameter is defaulted to the value "2". 
Using the ACK instead of the slash "/" tolerates items containing slashes, as URL web addresses.<br> 
For the format 2, pairs of items are built, with possible defaulting of the description item.<br><br>
Finally the total amount of items is passed to the {{T|G/layout|-}}, together with the other parameters. <br>
Because the {{tag|gallery}} tag does not support the suppression of the <code>showfilename</code> option, <br>
''two'' transclusions of the gallery tag are necessary - one with, and the other one without <code>showfilename</code>.