From 808762d3260526d74a2237f1daed4339f88175e5 Mon Sep 17 00:00:00 2001
From: Daniel Martens <danielmartens@protonmail.ch>
Date: Thu, 1 Feb 2024 15:45:43 +0100
Subject: [PATCH 1/3] fix(no-useless-mustaches): escape < in fixes

---
 lib/rules/no-useless-mustaches.js       |  3 +-
 tests/lib/rules/no-useless-mustaches.js | 48 +++++++++++++++++++++++++
 2 files changed, 50 insertions(+), 1 deletion(-)

diff --git a/lib/rules/no-useless-mustaches.js b/lib/rules/no-useless-mustaches.js
index f4f858d9e..9a382f511 100644
--- a/lib/rules/no-useless-mustaches.js
+++ b/lib/rules/no-useless-mustaches.js
@@ -142,8 +142,9 @@ module.exports = {
             // It doesn't autofix because another rule like indent or eol space might remove spaces.
             return null
           }
+          const escaped = text.replace(/\</g, '&lt;');
 
-          return fixer.replaceText(node, text.replace(/\\([\S\s])/g, '$1'))
+          return fixer.replaceText(node, escaped.replace(/\\([\S\s])/g, '$1'))
         }
       })
     }
diff --git a/tests/lib/rules/no-useless-mustaches.js b/tests/lib/rules/no-useless-mustaches.js
index a40d93f7d..b454600b6 100644
--- a/tests/lib/rules/no-useless-mustaches.js
+++ b/tests/lib/rules/no-useless-mustaches.js
@@ -186,6 +186,54 @@ tester.run('no-useless-mustaches', rule, {
         'Unexpected mustache interpolation with a string literal value.'
       ]
     },
+    {
+      code: `
+      <template>
+        {{ '&lt;' }}
+        {{ '&gt;' }}
+        {{ '&amp;' }}
+        {{ '&#8212;' }}
+      </template>
+      `,
+      output: `
+      <template>
+        &lt;
+        &gt;
+        &amp;
+        &#8212;
+      </template>
+      `,
+      errors: [
+        'Unexpected mustache interpolation with a string literal value.',
+        'Unexpected mustache interpolation with a string literal value.',
+        'Unexpected mustache interpolation with a string literal value.',
+        'Unexpected mustache interpolation with a string literal value.',
+      ]
+    },
+    {
+      code: `
+      <template>
+        {{ '<' }}
+        {{ '<<' }}
+        {{ 'can be < anywhere' }}
+        {{ '<tag>' }}
+      </template>
+      `,
+      output: `
+      <template>
+        &lt;
+        &lt;&lt;
+        can be &lt; anywhere
+        &lt;tag>
+      </template>
+      `,
+      errors: [
+        'Unexpected mustache interpolation with a string literal value.',
+        'Unexpected mustache interpolation with a string literal value.',
+        'Unexpected mustache interpolation with a string literal value.',
+        'Unexpected mustache interpolation with a string literal value.',
+      ]
+    },
     {
       code: `
       <template>

From 1342b60e56adbde64c688354ea563d5c22a1b40a Mon Sep 17 00:00:00 2001
From: Daniel Martens <danielmartens@protonmail.ch>
Date: Fri, 2 Feb 2024 17:11:54 +0100
Subject: [PATCH 2/3] chore: formatted code

---
 lib/rules/no-useless-mustaches.js       | 2 +-
 tests/lib/rules/no-useless-mustaches.js | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/rules/no-useless-mustaches.js b/lib/rules/no-useless-mustaches.js
index 9a382f511..dcadf900f 100644
--- a/lib/rules/no-useless-mustaches.js
+++ b/lib/rules/no-useless-mustaches.js
@@ -142,7 +142,7 @@ module.exports = {
             // It doesn't autofix because another rule like indent or eol space might remove spaces.
             return null
           }
-          const escaped = text.replace(/\</g, '&lt;');
+          const escaped = text.replace(/\</g, '&lt;')
 
           return fixer.replaceText(node, escaped.replace(/\\([\S\s])/g, '$1'))
         }
diff --git a/tests/lib/rules/no-useless-mustaches.js b/tests/lib/rules/no-useless-mustaches.js
index b454600b6..77d055e17 100644
--- a/tests/lib/rules/no-useless-mustaches.js
+++ b/tests/lib/rules/no-useless-mustaches.js
@@ -207,7 +207,7 @@ tester.run('no-useless-mustaches', rule, {
         'Unexpected mustache interpolation with a string literal value.',
         'Unexpected mustache interpolation with a string literal value.',
         'Unexpected mustache interpolation with a string literal value.',
-        'Unexpected mustache interpolation with a string literal value.',
+        'Unexpected mustache interpolation with a string literal value.'
       ]
     },
     {
@@ -231,7 +231,7 @@ tester.run('no-useless-mustaches', rule, {
         'Unexpected mustache interpolation with a string literal value.',
         'Unexpected mustache interpolation with a string literal value.',
         'Unexpected mustache interpolation with a string literal value.',
-        'Unexpected mustache interpolation with a string literal value.',
+        'Unexpected mustache interpolation with a string literal value.'
       ]
     },
     {

From 109a0bf054e25f267788cc4eff7da07dac5d9f59 Mon Sep 17 00:00:00 2001
From: Daniel Martens <danielmartens@protonmail.ch>
Date: Mon, 5 Feb 2024 11:35:05 +0100
Subject: [PATCH 3/3] chore: remove unnecessary escape

---
 lib/rules/no-useless-mustaches.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/rules/no-useless-mustaches.js b/lib/rules/no-useless-mustaches.js
index dcadf900f..f4db1a008 100644
--- a/lib/rules/no-useless-mustaches.js
+++ b/lib/rules/no-useless-mustaches.js
@@ -142,7 +142,7 @@ module.exports = {
             // It doesn't autofix because another rule like indent or eol space might remove spaces.
             return null
           }
-          const escaped = text.replace(/\</g, '&lt;')
+          const escaped = text.replace(/</g, '&lt;')
 
           return fixer.replaceText(node, escaped.replace(/\\([\S\s])/g, '$1'))
         }