From 0dba492e01c5ca1afff8a9de94ba6d8d29ea019f Mon Sep 17 00:00:00 2001
From: Khaled <dev.KhaledSaleh@gmail.com>
Date: Wed, 5 Jan 2022 12:13:29 -0800
Subject: [PATCH] Corrected the regex to detect espaced percent symbol
 (#139437)

---
 .../syntaxes/md-math.tmLanguage.json          |  2 +-
 .../test/colorize-fixtures/md-math.md         |  4 ++
 .../test/colorize-results/md-math_md.json     | 66 +++++++++++++++++++
 3 files changed, 71 insertions(+), 1 deletion(-)

diff --git a/extensions/markdown-math/syntaxes/md-math.tmLanguage.json b/extensions/markdown-math/syntaxes/md-math.tmLanguage.json
index b7c1b6fc4df..d3146023ecc 100644
--- a/extensions/markdown-math/syntaxes/md-math.tmLanguage.json
+++ b/extensions/markdown-math/syntaxes/md-math.tmLanguage.json
@@ -14,7 +14,7 @@
 			"patterns": [
 				{
 					"name": "comment.line.math.tex",
-					"match": "(%)(.+)$",
+					"match": "((?<!\\\\)%)(.+)$",
 					"captures": {
 						"1": {
 							"name": "punctuation.definition.comment.math.tex"
diff --git a/extensions/vscode-colorize-tests/test/colorize-fixtures/md-math.md b/extensions/vscode-colorize-tests/test/colorize-fixtures/md-math.md
index a2dad9e3282..5010968bb7a 100644
--- a/extensions/vscode-colorize-tests/test/colorize-fixtures/md-math.md
+++ b/extensions/vscode-colorize-tests/test/colorize-fixtures/md-math.md
@@ -167,3 +167,7 @@ $12.45
 $12.45 x
 
 x $12.45
+
+<!-- Should not interpret text for skipped percent (\%) -->
+
+$$ \% Should not be highlighted $$
diff --git a/extensions/vscode-colorize-tests/test/colorize-results/md-math_md.json b/extensions/vscode-colorize-tests/test/colorize-results/md-math_md.json
index 51e8f336d91..e9183132567 100644
--- a/extensions/vscode-colorize-tests/test/colorize-results/md-math_md.json
+++ b/extensions/vscode-colorize-tests/test/colorize-results/md-math_md.json
@@ -6532,5 +6532,71 @@
 			"light_vs": "default: #000000",
 			"hc_black": "default: #FFFFFF"
 		}
+	},
+	{
+		"c": "<!--",
+		"t": "text.html.markdown comment.block.html punctuation.definition.comment.html",
+		"r": {
+			"dark_plus": "comment: #6A9955",
+			"light_plus": "comment: #008000",
+			"dark_vs": "comment: #6A9955",
+			"light_vs": "comment: #008000",
+			"hc_black": "comment: #7CA668"
+		}
+	},
+	{
+		"c": " Should not interpret text for skipped percent (\\%) ",
+		"t": "text.html.markdown comment.block.html",
+		"r": {
+			"dark_plus": "comment: #6A9955",
+			"light_plus": "comment: #008000",
+			"dark_vs": "comment: #6A9955",
+			"light_vs": "comment: #008000",
+			"hc_black": "comment: #7CA668"
+		}
+	},
+	{
+		"c": "-->",
+		"t": "text.html.markdown comment.block.html punctuation.definition.comment.html",
+		"r": {
+			"dark_plus": "comment: #6A9955",
+			"light_plus": "comment: #008000",
+			"dark_vs": "comment: #6A9955",
+			"light_vs": "comment: #008000",
+			"hc_black": "comment: #7CA668"
+		}
+	},
+	{
+		"c": "$$",
+		"t": "text.html.markdown meta.paragraph.markdown markup.math.inline.markdown punctuation.definition.math.begin.markdown",
+		"r": {
+			"dark_plus": "default: #D4D4D4",
+			"light_plus": "default: #000000",
+			"dark_vs": "default: #D4D4D4",
+			"light_vs": "default: #000000",
+			"hc_black": "default: #FFFFFF"
+		}
+	},
+	{
+		"c": " \\% Should not be highlighted ",
+		"t": "text.html.markdown meta.paragraph.markdown markup.math.inline.markdown meta.embedded.math.markdown",
+		"r": {
+			"dark_plus": "meta.embedded: #D4D4D4",
+			"light_plus": "meta.embedded: #000000",
+			"dark_vs": "meta.embedded: #D4D4D4",
+			"light_vs": "meta.embedded: #000000",
+			"hc_black": "meta.embedded: #FFFFFF"
+		}
+	},
+	{
+		"c": "$$",
+		"t": "text.html.markdown meta.paragraph.markdown markup.math.inline.markdown punctuation.definition.math.begin.markdown",
+		"r": {
+			"dark_plus": "default: #D4D4D4",
+			"light_plus": "default: #000000",
+			"dark_vs": "default: #D4D4D4",
+			"light_vs": "default: #000000",
+			"hc_black": "default: #FFFFFF"
+		}
 	}
 ]
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