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var peliasQuery = require('pelias-query');
/**
Phrase view which trims the 'input:name' and uses ALL BUT the last token.
eg. if the input was "100 foo str", then 'input:name' would only be '100 foo'
note: it is assumed that the rest of the input is matched using another view.
code notes: this view makes a copy of the $vs object in order to change their
values without mutating the original values, which may be expected in their
unaltered form by other views.
**/
module.exports = function( vs ){
// get a copy of the *complete* tokens produced from the input:name
var tokens = vs.var('input:name:tokens_complete').get();
// no valid tokens to use, fail now, don't render this view.
if( !tokens || tokens.length < 1 ){ return null; }
// make a copy Vars so we don't mutate the original
var vsCopy = new peliasQuery.Vars( vs.export() );
// set the 'name' variable in the copy to all but the last token
vsCopy.var('input:name').set( tokens.join(' ') );
// return the view rendered using the copy
return peliasQuery.view.phrase( vsCopy );
};