Made search case-insensitive

internal/dicttranslate/match.go

@@ -1,6 +1,9 @@
 package dicttranslate
 
-import "github.com/texttheater/golang-levenshtein/levenshtein"
+import (
+	"github.com/texttheater/golang-levenshtein/levenshtein"
+	"strings"
+)
 
 func match(query string, opts []string, maxDist int) (string, bool) {
 	bestInd := -1
@@ -8,7 +11,7 @@ func match(query string, opts []string, maxDist int) (string, bool) {
 	for i, s := range opts {
 		cfg := levenshtein.DefaultOptions
 		cfg.SubCost = 1
-		dist := levenshtein.DistanceForStrings([]rune(s), []rune(query), cfg)
+		dist := levenshtein.DistanceForStrings([]rune(strings.ToLower(s)), []rune(strings.ToLower(query)), cfg)
 		if dist <= maxDist && (bestInd == -1 || dist < bestDist) {
 			bestInd = i
 			bestDist = dist

internal/dicttranslate/match_test.go

@@ -40,6 +40,13 @@ func TestMatch(t *testing.T) {
 			opts:       []string{"option", "opt1on"},
 			shouldFind: false,
 		},
+		{
+			name:       "Match case insensitive",
+			query:      "option",
+			opts:       []string{"OPTION", "opt1on"},
+			shouldFind: true,
+			match:      "OPTION",
+		},
 	}
 
 	for _, test := range tests {