Template:Title decade/doc

Extract a 4-digit decade from the page title, without the trailing "s".

e.g. from "Lorem ipsum dolor 1510s it amet" it will extract "1510"

Note that the trailing letter "s" is stripped, to allow manipulation. In template coding, it can be easily be added after the template call, e.g..

Usage
or

Decade from title which contains only a year
Note also that this template will not return the decade from a title which includes only a year. e.g.
 * → 1790

However, the decade can easily be obtained by using DECADE as as wrapper around Title year:. → 1953 and → 1950s ... so → 1950s

TemplateData
{	"params": { "1": {			"aliases": [ "match" ],			"label": "Match Instance", "description": "If multiple 4-digit decades are found, this specifies which match to return, where the first match is match= 1. If a negative number is specified then a match is returned counting from the last match. Hence match = -1 is the same as requesting the last match. Defaults to 1.", "type": "number", "default": "1" },		"2": {			"aliases": [ "nomatch" ],			"label": "No match text", "description": "If no 4-digit decades is found, output the \"nomatch\" value. Defaults to blank.", "type": "string" },		"page": { "label": "Override page title", "description": "Specified a page title to use other than the current page. If left blank, the template will use the title of the current page", "type": "wiki-page-name", "default": "" }	},	"description": "Extracts a 4-digit decade from the current page title. All parameters are optional." }