markdown link with square braces fix

tdmarkup/markup_scanner.go

@@ -166,9 +166,6 @@ func (s *MarkupScanner) scanChilds(text string) (res []tdproto.MarkupEntity) {
 	for scanner.Rest() > 0 {
 		t, e := scanner.Scan(nil)
 		if e != nil {
-			if res == nil {
-				res = make([]tdproto.MarkupEntity, 0)
-			}
 			res = append(res, *e)
 		}
 		if t == "" {
@@ -396,7 +393,7 @@ func (s *MarkupScanner) scanMarkdownLinks() (string, *tdproto.MarkupEntity) {
 
 findRepl:
 	for {
-		ch := s.TakeNext()
+		ch = s.TakeNext()
 		b.WriteRune(ch)
 		switch ch {
 		case ']':
@@ -417,8 +414,8 @@ findRepl:
 	}
 
 	if s.Next() != '(' {
-		s.Rewind(start)
-		return "", nil
+		replBuilder.WriteRune(ch)
+		goto findRepl
 	}
 
 	ch = s.TakeNext()

tdmarkup/markup_scanner_test.go

@@ -35,6 +35,7 @@ func TestToPlainNoQuotes(t *testing.T) {
 		})
 	}
 }
+
 func TestParse(t *testing.T) {
 	for _, v := range MarkupTestCases {
 		t.Run(v.Title, func(t *testing.T) {

tdmarkup/testdata.go

@@ -440,7 +440,7 @@ var MarkupTestCases = []struct {
 	},
 	{
 		Title: "markdown link with smile",
-		Raw:   `[=(](app://path)`,
+		Raw:   `[ =( ](app://path)`,
 		Html:  `<a href="app://path">=(</a>`,
 		Plain: "=(",
 	},
@@ -450,11 +450,16 @@ var MarkupTestCases = []struct {
 		Html:  `[ ](https://ya.ru)`,
 		Plain: `[ ](https://ya.ru)`,
 	},
-	// TODO:
-	//{
-	//	Title: "markdown link with square brace",
-	//	Raw:   `[[x]](app://path)`,
-	//	Html:  `<a href="app://path">[x]</a>`,
-	//	Plain: "[x]",
-	//},
+	{
+		Title: "markdown link with square braces",
+		Raw:   `[[x]](app://path)`,
+		Html:  `<a href="app://path">[x]</a>`,
+		Plain: "[x]",
+	},
+	{
+		Title: "markdown link with one square brace",
+		Raw:   `[x]y](app://path)`,
+		Html:  `<a href="app://path">x]y</a>`,
+		Plain: "x]y",
+	},
 }