feat: implement gomark parsers

plugin/gomark/parser/strikethrough_test.go

@@ -0,0 +1,45 @@
+package parser
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/usememos/memos/plugin/gomark/ast"
+	"github.com/usememos/memos/plugin/gomark/parser/tokenizer"
+)
+
+func TestStrikethroughParser(t *testing.T) {
+	tests := []struct {
+		text          string
+		strikethrough ast.Node
+	}{
+		{
+			text:          "~~Hello world",
+			strikethrough: nil,
+		},
+		{
+			text: "~~Hello~~",
+			strikethrough: &ast.Strikethrough{
+				Content: "Hello",
+			},
+		},
+		{
+			text: "~~ Hello ~~",
+			strikethrough: &ast.Strikethrough{
+				Content: " Hello ",
+			},
+		},
+		{
+			text: "~~1~~ Hello ~~~",
+			strikethrough: &ast.Strikethrough{
+				Content: "1",
+			},
+		},
+	}
+
+	for _, test := range tests {
+		tokens := tokenizer.Tokenize(test.text)
+		require.Equal(t, test.strikethrough, NewStrikethroughParser().Parse(tokens))
+	}
+}