Template:Str len/doc

This is the str len meta-template.

It takes a string as parameter and returns its length (excluding spaces at the start and end). It can now count as high as necessary.

Examples
If the parameter is empty or undefined it is considered to be of zero length:


 * returns 0
 * returns 0
 * returns 0

It counts the length correctly, even if the string contains spaces, looks like a number, or contains special characters:


 * returns 6


 * returns 7


 * returns 8


 * returns 499
 * returns 1000

Template data
{	"description": { "en": "The template takes a string as parameter and returns its length, excluding spaces at the start and end of the string", "cs": "Šablona bere řetězec jako parametr a vrací jeho délku, s výjimkou mezer na začátku a na konci řetězce" },	"params": { "1": {			"label": { "en": "Alpha-numeric text", "cs": "Alfanumerický text" },			"description": { "en": "The string to be counted", "cs":"Řetězec, který se má počítat" },			"type": "string", "required": true }	} }

Technical details
This is the first general-purpose template to be implemented using mw:Extension:Scribunto. The Lua code is located in Module:String.