From 26d7bf3d05bb927b5d724a59398e1a3ef715effc Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 4 Jan 2026 10:12:48 +0000
Subject: [PATCH 1/3] Initial plan


From 29eb4d898592629c39c8e25ede5b82bed026c10c Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 4 Jan 2026 10:22:44 +0000
Subject: [PATCH 2/3] Replace entities package with custom encodeXML
 implementation

- Remove entities dependency from package.json
- Add custom encodeXML function in SVGCore.ts that uses substring instead of deprecated substr
- Fixes TypeError when using echarts v6 with Expo 54 and React Native with Hermes

Co-authored-by: zhiqingchen <1876158+zhiqingchen@users.noreply.github.com>
---
 package.json       |  3 +--
 src/svg/SVGCore.ts | 47 +++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 47 insertions(+), 3 deletions(-)

diff --git a/package.json b/package.json
index 7f765a74..5d4ef0d2 100644
--- a/package.json
+++ b/package.json
@@ -191,7 +191,6 @@
     "version": "0.54.3"
   },
   "dependencies": {
-    "@xmldom/xmldom": "^0.8.6",
-    "entities": "^4.4.0"
+    "@xmldom/xmldom": "^0.8.6"
   }
 }
diff --git a/src/svg/SVGCore.ts b/src/svg/SVGCore.ts
index 1fd4d6c3..85a13397 100644
--- a/src/svg/SVGCore.ts
+++ b/src/svg/SVGCore.ts
@@ -1,7 +1,6 @@
 // source from https://github.com/ecomfe/zrender/blob/master/src/svg/core.ts
 // under BSD-3-Clause license
 // add some patch for skia
-import { encodeXML } from 'entities';
 
 export type SVGVNodeAttrs = Record<
   string,
@@ -18,6 +17,52 @@ export interface SVGVNode {
   key: string;
 }
 
+// Custom implementation of encodeXML to avoid issues with deprecated methods in entities package
+// This is based on the entities package implementation but uses substring instead of substr
+const xmlReplacer = /["&'<>$\x80-\uFFFF]/g;
+const xmlCodeMap = new Map([
+  [34, '&quot;'],
+  [38, '&amp;'],
+  [39, '&apos;'],
+  [60, '&lt;'],
+  [62, '&gt;'],
+]);
+
+const getCodePoint =
+  String.prototype.codePointAt != null
+    ? (str: string, index: number) => str.codePointAt(index)!
+    : // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
+      (str: string, index: number) =>
+        // eslint-disable-next-line no-bitwise
+        (str.charCodeAt(index) & 0xfc00) === 0xd800
+          ? (str.charCodeAt(index) - 0xd800) * 0x400 +
+            str.charCodeAt(index + 1) -
+            0xdc00 +
+            0x10000
+          : str.charCodeAt(index);
+
+function encodeXML(str: string): string {
+  let ret = '';
+  let lastIdx = 0;
+  let match;
+  while ((match = xmlReplacer.exec(str)) !== null) {
+    const i = match.index;
+    const char = str.charCodeAt(i);
+    const next = xmlCodeMap.get(char);
+    if (next !== undefined) {
+      ret += str.substring(lastIdx, i) + next;
+      lastIdx = i + 1;
+    } else {
+      ret += `${str.substring(lastIdx, i)}&#x${getCodePoint(str, i).toString(16)};`;
+      // Increase by 1 if we have a surrogate pair
+      // eslint-disable-next-line no-bitwise
+      lastIdx = xmlReplacer.lastIndex += Number((char & 0xfc00) === 0xd800);
+    }
+  }
+  // Use substring instead of deprecated substr
+  return ret + str.substring(lastIdx);
+}
+
 function createElementOpen(name: string, attrs?: SVGVNodeAttrs) {
   const attrsStr: string[] = [];
   if (attrs) {

From 408a5fb5b9ac5bbd34a756523ba40787e6021e0e Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 4 Jan 2026 10:24:17 +0000
Subject: [PATCH 3/3] Add JSDoc documentation to encodeXML functions

Co-authored-by: zhiqingchen <1876158+zhiqingchen@users.noreply.github.com>
---
 src/svg/SVGCore.ts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/svg/SVGCore.ts b/src/svg/SVGCore.ts
index 85a13397..3998c9b3 100644
--- a/src/svg/SVGCore.ts
+++ b/src/svg/SVGCore.ts
@@ -28,6 +28,11 @@ const xmlCodeMap = new Map([
   [62, '&gt;'],
 ]);
 
+/**
+ * Gets the Unicode code point at the specified index in a string.
+ * Provides a fallback for environments that don't support String.prototype.codePointAt.
+ * Handles surrogate pairs correctly to get the full Unicode code point.
+ */
 const getCodePoint =
   String.prototype.codePointAt != null
     ? (str: string, index: number) => str.codePointAt(index)!
@@ -41,6 +46,14 @@ const getCodePoint =
             0x10000
           : str.charCodeAt(index);
 
+/**
+ * Encodes all non-ASCII characters and special XML characters using XML entities.
+ * Special characters (<, >, &, ", ') are encoded as named entities.
+ * Non-ASCII characters are encoded as numeric hexadecimal references (e.g., &#xfc;).
+ *
+ * @param str - The string to encode
+ * @returns The encoded string with XML entities
+ */
 function encodeXML(str: string): string {
   let ret = '';
   let lastIdx = 0;