feat(markdown): support escape

2 files changed, 8 insertions, 1 deletions

diff --git a/mardown/lexer.go b/mardown/lexer.go
index 42519e7..62978ab 100644
--- a/mardown/lexer.go
+++ b/mardown/lexer.go
@@ -5,7 +5,8 @@ import "fmt"
 type lexerType string
 
 const (
-	lexerBreak lexerType = "break"
+	lexerBreak  lexerType = "break"
+	lexerEscape lexerType = "escape"
 
 	lexerModifier lexerType = "modifier"
 	lexerCode     lexerType = "code"
@@ -75,6 +76,8 @@ func lex(s string) *lexers {
 			fn(c, lexerQuote)
 		case '[', ']', '(', ')', '!':
 			fn(c, lexerExternal)
+		case '\\':
+			fn(c, lexerEscape)
 		default:
 			fn(c, lexerLiteral)
 		}
diff --git a/mardown/lexer_test.go b/mardown/lexer_test.go
index 296e9b9..f6a06d5 100644
--- a/mardown/lexer_test.go
+++ b/mardown/lexer_test.go
@@ -19,4 +19,8 @@ func TestLex(t *testing.T) {
 	if lxs.String() != "Lexers[modifier(**) literal(hey) modifier(**) literal(, what's up?) ]" {
 		t.Errorf("invalid lex, got %s", lxs)
 	}
+	lxs = lex(`Xxx\_DarkEmperor\_xxX`)
+	if lxs.String() != `Lexers[literal(Xxx) escape(\) modifier(_) literal(DarkEmperor) escape(\) modifier(_) literal(xxX) ]` {
+		t.Errorf("invalid lex, got %s", lxs)
+	}
 }