chore: add prismjs for syntax highlighting

1 files changed, 28 insertions, 0 deletions

diff --git a/public/prism/prism-erb.js b/public/prism/prism-erb.js
new file mode 100644
index 0000000..9b406dc
--- /dev/null
+++ b/public/prism/prism-erb.js
@@ -0,0 +1,28 @@
+(function (Prism) {
+  Prism.languages.erb = {
+    delimiter: {
+      pattern: /^(\s*)<%=?|%>(?=\s*$)/,
+      lookbehind: true,
+      alias: 'punctuation',
+    },
+    ruby: {
+      pattern: /\s*\S[\s\S]*/,
+      alias: 'language-ruby',
+      inside: Prism.languages.ruby,
+    },
+  };
+
+  Prism.hooks.add('before-tokenize', function (env) {
+    var erbPattern =
+      /<%=?(?:[^\r\n]|[\r\n](?!=begin)|[\r\n]=begin\s(?:[^\r\n]|[\r\n](?!=end))*[\r\n]=end)+?%>/g;
+    Prism.languages['markup-templating'].buildPlaceholders(
+      env,
+      'erb',
+      erbPattern
+    );
+  });
+
+  Prism.hooks.add('after-tokenize', function (env) {
+    Prism.languages['markup-templating'].tokenizePlaceholders(env, 'erb');
+  });
+})(Prism);