From 100ff882f606230e392e935e5a4d1a187c94f180 Mon Sep 17 00:00:00 2001
From: Konstantin Voykov <koykov0@gmail.com>
Date: Sat, 20 Jul 2024 22:49:50 +0300
Subject: [PATCH 1/2] String escaping check policy.

---
 parser.go | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/parser.go b/parser.go
index a031c2f..1584038 100644
--- a/parser.go
+++ b/parser.go
@@ -85,13 +85,13 @@ func (vec *Vector) parseGeneric(depth, offset int, node *vector.Node) (int, erro
 		if e < 0 {
 			return n, vector.ErrUnexpEOS
 		}
-		node.Value().SetBit(flagEscape, false)
+		node.Value().SetBit(flagEscape, true) // Always mark string as escaped to avoid double indexing.
 		if src[e-1] != '\\' {
-			// Good case - string isn't escaped.
+			// Good case - quote isn't escaped.
 			node.Value().SetLen(e - offset - 1)
 			offset = e + 1
 		} else {
-			// Walk over double quotas and look for unescaped.
+			// Walk over quotas and look for unescaped one.
 			for i := e; i < n; {
 				i = bytealg.IndexByteAtBytes(src, '"', i+1)
 				if i < 0 {
@@ -104,7 +104,6 @@ func (vec *Vector) parseGeneric(depth, offset int, node *vector.Node) (int, erro
 				}
 			}
 			node.Value().SetLen(e - offset - 1)
-			node.Value().SetBit(flagEscape, true)
 			offset = e + 1
 		}
 	case isDigit(src[offset]):

From c253c3b21225fbab9249a6bfd0dbd9b754bafe9e Mon Sep 17 00:00:00 2001
From: Konstantin Voykov <koykov0@gmail.com>
Date: Sat, 20 Jul 2024 22:50:39 +0300
Subject: [PATCH 2/2] Helper: speedup unescape by using native indexing.

---
 unescape.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/unescape.go b/unescape.go
index bc2e0e1..e69950b 100644
--- a/unescape.go
+++ b/unescape.go
@@ -12,7 +12,7 @@ import (
 func Unescape(p []byte) []byte {
 	l, i := len(p), 0
 	for {
-		i = bytealg.IndexByteAtLUR(p, '\\', i)
+		i = bytealg.IndexByteAtBytes(p, '\\', i)
 		if i < 0 || i+1 == l {
 			break
 		}