diff --git a/parser/parser.go b/parser/parser.go
index 2920219..ea0cd49 100644
--- a/parser/parser.go
+++ b/parser/parser.go
@@ -593,7 +593,7 @@ func (p *parser) parse(isRoot bool) (result []*ast.Node, endPos ast.Position, er
 
 			// endPos points at the closing brace, but we should rather return the position
 			// of the first character after the previous item. Therefore let's rewind a bit:
-			for endPos.Byte > 0 && p.in[endPos.Byte-1] == ' ' {
+			for p.in[endPos.Byte-1] == ' ' {
 				endPos.Byte--
 				endPos.Column--
 			}
@@ -856,9 +856,6 @@ func (p *parser) isValueSep(i int) bool {
 }
 
 func (p *parser) advance(i int) string {
-	if i > p.length {
-		i = p.length
-	}
 	res := p.in[p.index:i]
 	p.index = i
 	strRes := string(res)
@@ -1014,7 +1011,7 @@ func (p *parser) readTemplate() string {
 				}
 			}
 		}
-		if i < p.length && p.in[i] == '%' {
+		if p.in[i] == '%' {
 			i++
 			break
 		}