Factored function to get search terms

Author: cmaglie

commands/lib/search.go

@@ -41,9 +41,7 @@ func searchLibrary(req *rpc.LibrarySearchRequest, lm *librariesmanager.Libraries
 	status := rpc.LibrarySearchStatus_LIBRARY_SEARCH_STATUS_SUCCESS
 
 	// Split on anything but 0-9, a-z or :
-	queryTerms := strings.FieldsFunc(strings.ToLower(req.GetQuery()), func(r rune) bool {
-		return !((r >= '0' && r <= '9') || (r >= 'a' && r <= 'z') || r == ':')
-	})
+	queryTerms := rpc.SearchTermsFromQueryString(req.GetQuery())
 
 	for _, lib := range lm.Index.Libraries {
 		matchTerm := func(x string) bool {

rpc/cc/arduino/cli/commands/v1/search.go

@@ -0,0 +1,28 @@
+// This file is part of arduino-cli.
+//
+// Copyright 2020 ARDUINO SA (http://www.arduino.cc/)
+//
+// This software is released under the GNU General Public License version 3,
+// which covers the main part of arduino-cli.
+// The terms of this license can be found at:
+// https://www.gnu.org/licenses/gpl-3.0.en.html
+//
+// You can be released from the requirements of the above licenses by purchasing
+// a commercial license. Buying such a license is mandatory if you want to
+// modify or otherwise use the software for commercial activities involving the
+// Arduino software without disclosing the source code of your own applications.
+// To purchase a commercial license, send an email to license@arduino.cc.
+
+package commands
+
+import "strings"
+
+// SearchTermsFromQueryString returns the terms inside the query string.
+// All non alphanumeric characters (expect ':') are considered separators.
+// All search terms are converted to lowercase.
+func SearchTermsFromQueryString(query string) []string {
+	// Split on anything but 0-9, a-z or :
+	return strings.FieldsFunc(strings.ToLower(query), func(r rune) bool {
+		return !((r >= '0' && r <= '9') || (r >= 'a' && r <= 'z') || r == ':')
+	})
+}