Not much better

lexer.go

@@ -152,7 +152,8 @@ func (i Item) String() string {
 	}
 
 	if len(i.Val) > 10 {
-		return fmt.Sprintf("%s:%.10q...", i.Typ, i.Val)
+		// return fmt.Sprintf("%s:%.10q...", i.Typ, i.Val)
+		return fmt.Sprintf("%s:%q", i.Typ, i.Val)
 	}
-	return fmt.Sprintf("%s:%q...", i.Typ, i.Val)
+	return fmt.Sprintf("%s:%q", i.Typ, i.Val)
 }

states.go

@@ -3,6 +3,7 @@ package wikilink
 import (
 	"log"
 	"strings"
+	"unicode"
 )
 
 func lexFragment(l *Lexer) stateFn {
@@ -27,14 +28,28 @@ func lexFragment(l *Lexer) stateFn {
 func lexAlias(l *Lexer) stateFn {
 	// l.accept
 	log.Println("entering lexAlias")
-	if strings.HasPrefix(l.input[l.pos:], CloseLink) {
+	for {
-		return lexCloseLink
+		if strings.HasPrefix(l.input[l.pos:], CloseLink) {
+			return lexCloseLink
+		}
+		r := l.next()
+
 	}
 	l.emit(ItemAlias)
 
 	return lexInsideLink
 }
 
+func lexIdent(l *Lexer) stateFn {
+	for {
+		if strings.HasPrefix(l.input[l.pos:], CloseLink) {
+			return lexCloseLink
+		}
+		// r := l.next()
+	}
+	return lexInsideLink
+}
+
 func lexInsideLink(l *Lexer) stateFn {
 	log.Println("entering lexInsideLink")