Template:Irregular navseasoncats/doc

A template to assist making manually-configured category navigation for cases with very irregular seasons, which the regular Navseasoncats cannot handle.

Background
Navseasoncats is a very powerful tool. Without any parameters, it creates category navigation for sets of chronology categories of many types: years, decades, centuries, ordinals, and seasons (i.e. sets of categories where each category spans a range of years). However, technical limitations mean that it cannot handle seasons with irregular length and irregular inter-season gaps larger than 6 years.

This template eases the pain of manually creating category navigation for these irregular seasons, such as the subcats of Category:Legislators by term, where some parliaments have variable-length terms and large gaps.

Explanation
A season category will usually take the form "prefix year-range suffix". There is rarely both a prefix and suffix: most categories have one or the other.


 * Example of prefix:
 * Category:Members of the Scottish Parliament 1999–2003 ... prefix =


 * Example of suffix:
 * Category:2000–2001 in Icelandic basketball ... suffix =

Example
For the subcats of Category:Members of the Jharkhand Legislative Assembly by term:

Note that since there is no suffix, the second parameter is left blank.