From 6ae9223aa117a9a955b123d1501bc9588c1dfd1b Mon Sep 17 00:00:00 2001
From: Pierre-Marie Dartus <p.dartus@salesforce.com>
Date: Thu, 22 Jul 2021 08:27:48 +0200
Subject: [PATCH 1/2] Update setEndLocation to account for tag name with
 uppercase

---
 .../extensions/location-info/parser-mixin.js  |  3 ++-
 .../parse5/test/location-info-parser.test.js  | 20 +++++++++++++++++++
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/packages/parse5/lib/extensions/location-info/parser-mixin.js b/packages/parse5/lib/extensions/location-info/parser-mixin.js
index e7d3e2da1..c389da380 100644
--- a/packages/parse5/lib/extensions/location-info/parser-mixin.js
+++ b/packages/parse5/lib/extensions/location-info/parser-mixin.js
@@ -42,7 +42,8 @@ class LocationInfoParserMixin extends Mixin {
 
                 // NOTE: For cases like <p> <p> </p> - First 'p' closes without a closing
                 // tag and for cases like <td> <p> </td> - 'p' closes without a closing tag.
-                const isClosingEndTag = closingToken.type === Tokenizer.END_TAG_TOKEN && tn === closingToken.tagName;
+                const isClosingEndTag =
+                    closingToken.type === Tokenizer.END_TAG_TOKEN && tn.toLowerCase() === closingToken.tagName;
                 const endLoc = {};
                 if (isClosingEndTag) {
                     endLoc.endTag = Object.assign({}, ctLoc);
diff --git a/packages/parse5/test/location-info-parser.test.js b/packages/parse5/test/location-info-parser.test.js
index 4d4ce6879..732247547 100644
--- a/packages/parse5/test/location-info-parser.test.js
+++ b/packages/parse5/test/location-info-parser.test.js
@@ -126,6 +126,26 @@ generateTestsForEachTreeAdapter(module.exports, (_test, treeAdapter) => {
 
         assert.ok(!location.endTag);
     };
+
+    _test['Regression - location.endTag should be available adjusted SVG elements (GH-352)'] = function() {
+        const html = '<svg><foreignObject></foreignObject></svg>';
+
+        const opts = {
+            treeAdapter: treeAdapter,
+            sourceCodeLocationInfo: true
+        };
+
+        const fragment = parse5.parseFragment(html, opts);
+        const svg = treeAdapter.getChildNodes(fragment)[0];
+        const foreignObject = treeAdapter.getChildNodes(svg)[0];
+        const location = treeAdapter.getNodeSourceCodeLocation(foreignObject);
+
+        assert.ok(location.endTag);
+        assert.strictEqual(
+            html.slice(location.startTag.startOffset, location.endTag.endOffset),
+            '<foreignObject></foreignObject>'
+        );
+    };
 });
 
 exports['Updating node source code location (GH-314)'] = function() {

From 013ae5a9aa95da0b39fcdfe18c9b3afa96e407d5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Felix=20B=C3=B6hm?= <188768+fb55@users.noreply.github.com>
Date: Tue, 15 Feb 2022 16:58:10 +0000
Subject: [PATCH 2/2] fix(parser): Set `location.endTag` for mixed-case foreign
 elements

---
 packages/parse5/lib/parser/index.ts           |  6 +++++-
 .../lib/parser/parser-location-info.test.ts   | 20 +++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/packages/parse5/lib/parser/index.ts b/packages/parse5/lib/parser/index.ts
index 97b528237..840bd4e34 100644
--- a/packages/parse5/lib/parser/index.ts
+++ b/packages/parse5/lib/parser/index.ts
@@ -3783,7 +3783,11 @@ function endTagInForeignContent<T extends TreeAdapterTypeMap>(p: Parser<T>, toke
             break;
         }
 
-        if (p.treeAdapter.getTagName(element).toLowerCase() === token.tagName) {
+        const tagName = p.treeAdapter.getTagName(element);
+
+        if (tagName.toLowerCase() === token.tagName) {
+            //NOTE: update token tag name for `_setEndLocation`.
+            token.tagName = tagName;
             p.openElements.shortenToLength(i);
             break;
         }
diff --git a/packages/parse5/lib/parser/parser-location-info.test.ts b/packages/parse5/lib/parser/parser-location-info.test.ts
index cd053d6c1..71c02b963 100644
--- a/packages/parse5/lib/parser/parser-location-info.test.ts
+++ b/packages/parse5/lib/parser/parser-location-info.test.ts
@@ -132,6 +132,26 @@ generateTestsForEachTreeAdapter('location-info-parser', (treeAdapter) => {
 
         assert.ok(!location.endTag);
     });
+
+    test('Regression - location.endTag should be available adjusted SVG elements (GH-352)', () => {
+        const html = '<svg><foreignObject></foreignObject></svg>';
+
+        const opts = {
+            treeAdapter,
+            sourceCodeLocationInfo: true,
+        };
+
+        const fragment = parse5.parseFragment(html, opts);
+        const svg = treeAdapter.getChildNodes(fragment)[0];
+        const foreignObject = treeAdapter.getChildNodes(svg)[0];
+        const location = treeAdapter.getNodeSourceCodeLocation(foreignObject);
+
+        assert.ok(location && location.startTag && location.endTag);
+        assert.strictEqual(
+            html.slice(location.startTag.startOffset, location.endTag.endOffset),
+            '<foreignObject></foreignObject>'
+        );
+    });
 });
 
 describe('location-info-parser', () => {