From 225ed707376c95b4da6a9fe21a7a91f6687dce97 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Thu, 26 Sep 2024 22:38:24 +0200
Subject: [PATCH] html: Accelerate htmlParseCharData

---
 HTMLparser.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/HTMLparser.c b/HTMLparser.c
index cf7bab5f..651eac9f 100644
--- a/HTMLparser.c
+++ b/HTMLparser.c
@@ -3035,6 +3035,29 @@ htmlParseCharData(htmlParserCtxtPtr ctxt) {
                 }
             }
 
+            /* Accelerator */
+            if (!ncr) {
+                while (avail > 0) {
+                    static const unsigned mask[8] = {
+                        0x00002401, 0x10002040,
+                        0x00000000, 0x00000000,
+                        0xFFFFFFFF, 0xFFFFFFFF,
+                        0xFFFFFFFF, 0xFFFFFFFF
+                    };
+                    cur = *in;
+                    if ((1u << (cur & 0x1F)) & mask[cur >> 5])
+                        break;
+                    col += 1;
+                    in += 1;
+                    avail -= 1;
+                }
+
+                if ((!eof) && (avail <= 64))
+                    continue;
+                if (avail == 0)
+                    continue;
+            }
+
             cur = *in;
             size = 1;
             col += 1;