= Add gco:CharacterString substitution group support and filter substitution element list =

|| '''Date''' || 2010/03/09 ||
|| '''Contact(s)''' || Francois ||
|| '''Last edited''' || [[Timestamp]] ||
|| '''Status''' || Draft ||
|| '''Assigned to release''' || 2.5 ||
|| '''Resources''' || GéoSource [BRGM] ||
|| '''Ticket''' ||  ||

== Overview ==
Actually, GeoNetwork ignore all gco:CharacterString substites due to the following lines in schema-substitutes.xml :
{{{
<!-- override all the schema substitutes for gco:CharacterString 
	- we don't want any--> 
	<field name="gco:CharacterString">
	</field> 
}}}
It also provide by default all substitutes of an element. The proposal allows to filter substitution list.
[[Image(substitution-group-all.png)]]

The idea of the proposal is to be able to some elements to be able to use one or more substitutes of gco:CharacterString. Indeed, some substitute like gmx:FileName or gmx:Anchor could be useful in some situation. 
The proposal add :
 * a way configure allowed substitutes for an element
 * add support for gmx:FileName to be used to store a document in the catalogue
 * suggest only gml:Polygon for bounding polygon choice list.


=== Proposal Type ===
 * '''Type''': Editor
 * '''App''': !GeoNetwork
 * '''Module''': Editor

=== Links ===
 
 * '''Email discussions''': 
 * '''IRC discussions''': 

=== Voting History ===
 * Vote not yet proposed 

== Proposal details ==
=== Configuration ===

{{{
<field name="gmd:otherCitationDetails">
		<suggest name="gco:CharacterString"/>
		<suggest name="gmx:FileName"/>
	</field> 
}}}

== Risks ==

== Participants ==
 * Francois