Need a Mustache helper method for html entities

Setup Log in as admin Go to Site administration > Plugins > Enrolments > Manage enrol plugins  Enable "Publish as LTI tool" Go to Site administration > Language > Language customisation Select English Click on the 'Import custom strings' button Click on the 'Continue' button after the language pack is loaded by Moodle Upload the file  customlang_en.zip  into the upload area Set 'Import mode' on 'Create or update all strings from the component(s)' Click on the 'Import file' button Click on 'Continue' Click on the 'Save strings to language pack' button Click on the 'Continue' button Create a new course (do NOT enrol anyone into the course) Enter the course Test 1 Log in as admin Go to Site administration > Users > Privacy and policies > Policy settings Set 'Site policy handler' to 'Policies (tool_policy)' and save changes Go to Site administration > Users > Privacy and policies > Manage policies Click on the 'New policy' button Create a new policy with the following values Name: my policy Summary: my summary Full policy: my full policy Show policy before showing other policies: No Agreement optional: No Policy status: Active Log out Go to the signup page Click on the N"e>x button Verify that you see 2 buttons with these exact titles: N"e>x<t C"<an>c"el Test 2 Log in as admin Enable the 'Publish as LTI tool' enrolment plugin on your site. Visit a course Go to Course administration > Published as LTI tools View page source (usually Ctrl+u) Copy the source Visit https://validator.w3.org/nu/ Set the check by field to 'text input' and replace the content of the text editor with what you copied on step 7 Press the 'check' button Press the 'message filtering' button Verify  that you don't see any errors Note: because of some recently integrated codes, you may see some irrelevant errors. Here is a list of errors that you can ignore, but there can be more. Please check with me if you see any error that is not listed here before failing this issue: Bad value “#” for attribute “type” on element “button” Duplicate ID “moremenu-dropdown [some-number] ” Attribute aria-expanded not allowed on element a at this point. Test 3 Log in as admin Go to the 'Site home' page Click on the cog icon at the top right of the page and then click on 'More...' Go to Question bank > Questions Verify that there is a dropdown menu with the following placeholder text Fil<t"er "by' t>ags... Click on the 'Create a new question...' button Verify that the opened dialogue has a button with this exact text C"<an>c"el Create a true/false question After creating the question, click on the 'Edit' link next to the question Verify that the menu has an item with this exact text It's the "Preview" button Test 4 Log in as admin Go into a course From the navigation drawer, click on 'Grades' Go to the Setup tab Verify that you see a button with this exact title S"a>v<e ch"an'ges Test 5 Log in as admin Go to calendar Click on the 'New event' button Enable your screen reader Press Tab multiple times until the close button (the X button) is focused Verify that the screen reader says the following: It's a "close" button Test 6 Log in as admin Enable 'OAuth 2' authentication in site administration > plugins > authentication > manage authentication Go to site administration > server > OAuth 2 services Click on the 'Google' button Set the 'Name displayed on the login page' field to the following and then click on the 'Save changes' button H"e>llo Log out Go to the login page Verify that the placeholder on the username and password fields says It's the "Username" field It's the "password" field Verify that you see a button with the exact label as the following H"e>llo Put your mouse over the button Verify that the tooltip you see has the exact same text as the button's text (311 only) Test 7 Open theme/boost/settings.php and edit the line that contains admin_setting_configcolourpicker to this $setting = new admin_setting_configcolourpicker($name, $title, $description, '', ['selector'=>'.some .css .selector'] ); Log in as admin Go to Site administration > Appearance > Themes > Boost Verify the button next to the colour picker element has the following label It's the "Preview" button Test 8 Log in as admin Create a course Create 2 pages in the course with the following names (use the same for page content).  It's a page It's another "page" with > special < characters Enter the first page View page source (usually Ctrl+u) Copy the source Visit https://validator.w3.org/nu/ Set the check by field to 'text input' and replace the content of the text editor with what you copied on step 6 Press the 'check' button Press the 'message filtering' button Verify  that you don't see any errors Note: because of some recently integrated codes, you may see some irrelevant errors. Here is a list of errors that you can ignore, but there can be more. Please check with me if you see any error that is not listed here before failing this issue: Bad value “#” for attribute “type” on element “button” Duplicate ID “moremenu-dropdown [some-number] ” Attribute aria-expanded not allowed on element a at this point. Test 9 Open the file course/classes/management_renderer.php and in the function category_listitem_actions, modify array('data-action' => $key, 'class' => 'action-'.$key) to array('data-action' => $key, 'class' => 'action-'.$key, 'title' => $action ['string'] ) Log in as admin Go to the course management page (Site administration > Courses > Manage courses and categories). Click on the gear icon of the 'Miscellaneous' category Hover your mouse over the create a new subcategory option Verify that the tooltip text is exactly the same as the text of the menu item Test 10 Log in as admin Go into a course Create an assignment with the following values Assignment name: It's an "assignment" with >special< chars Completion tracking: Students can manually mark the activity as completed Expect completed on: set it to sometime in tomorrow's date Enrol yourself into the course Go to dashboard Set the filter of the timeline block to show overdue events Set the filter of the timeline block to show all events Verify that you see the assignment is listed on the timeline block Hover your mouse over the title of the assignment Verify that you see a tooltip with the following text (because of a known issue, you'd see html entities instead of > and <) It's an "assignment" with >special< chars should be completed