Module:Pseudo image/doc

Template:Module rating This module is supposed to take all the normal File:/Image: parameters from the call to a parent template (though it will might use its own args in preference for debug purposes) and return them back one by one for use by a template. Most important, it figures out by a process of elimination which of these is the caption.

Usage

This is designed to be used with a template like Template:Pseudo image which receives the parameters that used to go to a File: or Image: thumbnail. For example,

[[File:Abortionmethods.png|thumb|right|220px|Example: chart of abortion times]]

is replaced in the template by

{{Pseudo image|thumb|right|220px|link=:File:Abortionmethods.png|Example: chart of abortion times|image={{#invoke:Block diagram|main|''a bunch of stuff to draw the diagram as divs''}}}}

The current division of labor in the process is that the Template:Pseudo image accepts this call, and outputs the graphics, while this module is limited to sorting out the parameters. Therefore, calls to the module itself accept an extra parameter query=(field name) and return the desired field for use within the template. The field names presently supported are:

• thumb - returns the value "yes" if there a |thumb| or |thumbnail| is given.
• frame - returns "yes" if there is a |frame|
• px - returns the horizontal pixel size ### if there is a |###px| or |###x##px|
• xpx - returns the vertical pixel size ### if there is a |##x###px| or |x###px|
• float - returns left, right, center, none if any one of these is present
• vertical - returns baseline,middle,sub,super,text-top,text-bottom,top, or bottom if any of these is present
• caption - returns the first field that isn't any one of the preceding. Note: as a convenience, it also ignores blank fields and picks a later nonblank field instead, though that shouldn't happen anyway.
• If two different values are given for the same field (Pseudo image|thumb|left|right|center|, whichever comes later as they're listed above should dominate, but let's call it "undefined", i.e. don't do this. ;)
• Note that this module ignores fields like alt=, link= etc. for determining the caption because they are not unlabeled fields, but should actually return the values if queried anyway. But there's no obvious reason not to use those as simply {{{alt|}}},{{{link|}}} etc. without #invoking anyway.