[[TranslatedPages]]
**Name templates can be used to define custom formatting for OSM primitives or GPX waypoints** (for example in the Relations or the Selection lists).

= Where to define =

Create a text file as described below. Then refer to it from [[TaggingPresets]].

= Configuration file =
The configuration file can look like this:


{{{
#!xml
<?xml version="1.0" encoding="UTF-8"?>
<presets>
	<item name="Public transportation" type="relation"
		name_template="Bus({operator} {ref} ?{'{from} - {via} - {to}' | '{from} - {to}' | '{from}' | '{to}'})"
		name_template_filter="type=route route=bus">
	</item>
</presets>
}}}


= Syntax =
* `{var}` - use value of variable var
* `?{condition1 'value1' | condition2 'value2 | 'value3'}` - use value1 if condition1 is satisfied, value3 is no condition is satisfied. Condition can be either explicit -  the same expression as in search or filters is used - or implicit; the value is used when all variables used inside exist
* `!{search_expression 'template'}` - search_expression is evaluated and first matching primitive is used as context for template. Useful for example to get tags of parent relation.

= Samples =
||= Template =||= Tags =||= Result =||
|| `House number {addr:housenumber}` || `addr:housenumber=10` || House number 10
|| `?{ 'House number {addr:housenumber} at {addr:street}' | 'House number {addr:housenumber}'  }` || `addr:housenumber=10` || House number 10
|| || `addr:housenumber=10 addr:street=Abbey road` || House number 10 at Abbey road
|| `?{ admin_level = 2 'NUTS 1' | admin_level = 4 'NUTS 2' | admin_level = 6 'NUTS 3' |  'Admin level {admin_level}'}` ||  `admin_level=4` || NUTS 2 
|| || `admin_level=5` || Admin level 5
|| `{admin_level} - {name} !{parent() type=boundary '?{'(part of {admin_level} - {name})' | ''}'}` || `admin_level=6 name=Vysocina`, member of relation `admin_level=4 name=Jihovychod` || 6 - Vysocina (part of Jihovychod)
|| ||  `admin_level=2 name=Czech republic` (no parents) || 2 - Czech republic

= Available values =
For formatting of OSM primitives , the value of any tag can be used. You can use `{special:everything}` to see what values are available for your gpx waypoints.

Some additional variables are available  via the special prefix:
- `{special:everything}` prints all available values, available for formatting of both primitives and waypoints.
- `{special:id}` prints the ID of an osm primitive
- `{special:localName}` prints the localized name, that is the value of name:lang for your language if it is available or the value of the name tag if it doesn't.