return single snippet with whole name match immediately in fuzzy search

lib/fuzzy.go

@@ -34,6 +34,13 @@ func fSearchFileName(pattern string, dir string) (matched []string) {
 // fSearchSnippet matches pattern to snippet name in SnippetSlice
 // returns SnippetSlice of best matched snippets.
 func fSearchSnippet(snippets SnippetSlice, pattern string) (matched SnippetSlice) {
+	// special case handling if pattern == snippet name
+	wholeNameMatchTest := func(s Snippet) bool { return s.Name == pattern }
+	wholeNameMatch := snippets.FilterView(wholeNameMatchTest)
+	if wholeNameMatch.Len() == 1 {
+		return wholeNameMatch
+	}
+
 	topRank := -1
 	for _, s := range snippets {
 		for _, part := range nameCombinations(s.Name) {

lib/fuzzy_test.go

@@ -107,6 +107,16 @@ func TestFSearchSnippet(t *testing.T) {
 				Snippet{Name: "system:user:add"},
 			},
 		},
+		{"single matched fully qualified special case when whole match applies",
+			SnippetSlice{
+				Snippet{Name: "project:build"},
+				Snippet{Name: "project:build:full"},
+				Snippet{Name: "non:match"},
+			}, "project:build",
+			SnippetSlice{
+				Snippet{Name: "project:build"},
+			},
+		},
 	}
 	for _, tt := range tests {
 		if gotMatched := fSearchSnippet(tt.snippets, tt.pattern); !reflect.DeepEqual(gotMatched, tt.wantMatched) {

lib/snippet.go

@@ -157,3 +157,13 @@ func (s SnippetSlice) Less(a, b int) bool {
 func (s SnippetSlice) Swap(a, b int) {
 	s[a], s[b] = s[b], s[a]
 }
+
+// filter input by test function and return new slice with matched snippets
+func (ss SnippetSlice) FilterView(test func(Snippet) bool) (ret SnippetSlice) {
+	for _, s := range ss {
+		if test(s) {
+			ret = append(ret, s)
+		}
+	}
+	return
+}