updated changelog and exposed search.TokenFunctions

tools/search/token_functions.go

@@ -6,12 +6,12 @@ import (
 	"github.com/ganigeorgiev/fexpr"
 )
 
-var tokenFunctions = map[string]func(
+var TokenFunctions = map[string]func(
 	argTokenResolverFunc func(fexpr.Token) (*ResolverResult, error),
 	args ...fexpr.Token,
 ) (*ResolverResult, error){
 	// geoDistance(lonA, latA, lonB, latB) calculates the Haversine
-	// distance between 2 coordinates in kilometres (https://www.movable-type.co.uk/scripts/latlong.html).
+	// distance between 2 points in kilometres (https://www.movable-type.co.uk/scripts/latlong.html).
 	//
 	// The accepted arguments at the moment could be either a plain number or a column identifier (including NULL).
 	// If the column identifier cannot be resolved and converted to a numeric value, it resolves to NULL.