chore: add prismjs for syntax highlighting

1 files changed, 72 insertions, 0 deletions

diff --git a/public/prism/prism-groovy.js b/public/prism/prism-groovy.js
new file mode 100644
index 0000000..c6d1bbc
--- /dev/null
+++ b/public/prism/prism-groovy.js
@@ -0,0 +1,72 @@
+Prism.languages.groovy = Prism.languages.extend('clike', {
+  string: [
+    {
+      // https://groovy-lang.org/syntax.html#_dollar_slashy_string
+      pattern:
+        /("""|''')(?:[^\\]|\\[\s\S])*?\1|\$\/(?:[^/$]|\$(?:[/$]|(?![/$]))|\/(?!\$))*\/\$/,
+      greedy: true,
+    },
+    {
+      // TODO: Slash strings (e.g. /foo/) can contain line breaks but this will cause a lot of trouble with
+      // simple division (see JS regex), so find a fix maybe?
+      pattern: /(["'/])(?:\\.|(?!\1)[^\\\r\n])*\1/,
+      greedy: true,
+    },
+  ],
+  keyword:
+    /\b(?:abstract|as|assert|boolean|break|byte|case|catch|char|class|const|continue|def|default|do|double|else|enum|extends|final|finally|float|for|goto|if|implements|import|in|instanceof|int|interface|long|native|new|package|private|protected|public|return|short|static|strictfp|super|switch|synchronized|this|throw|throws|trait|transient|try|void|volatile|while)\b/,
+  number:
+    /\b(?:0b[01_]+|0x[\da-f_]+(?:\.[\da-f_p\-]+)?|[\d_]+(?:\.[\d_]+)?(?:e[+-]?\d+)?)[glidf]?\b/i,
+  operator: {
+    pattern:
+      /(^|[^.])(?:~|==?~?|\?[.:]?|\*(?:[.=]|\*=?)?|\.[@&]|\.\.<|\.\.(?!\.)|-[-=>]?|\+[+=]?|!=?|<(?:<=?|=>?)?|>(?:>>?=?|=)?|&[&=]?|\|[|=]?|\/=?|\^=?|%=?)/,
+    lookbehind: true,
+  },
+  punctuation: /\.+|[{}[\];(),:$]/,
+});
+
+Prism.languages.insertBefore('groovy', 'string', {
+  shebang: {
+    pattern: /#!.+/,
+    alias: 'comment',
+  },
+});
+
+Prism.languages.insertBefore('groovy', 'punctuation', {
+  'spock-block': /\b(?:and|cleanup|expect|given|setup|then|when|where):/,
+});
+
+Prism.languages.insertBefore('groovy', 'function', {
+  annotation: {
+    pattern: /(^|[^.])@\w+/,
+    lookbehind: true,
+    alias: 'punctuation',
+  },
+});
+
+// Handle string interpolation
+Prism.hooks.add('wrap', function (env) {
+  if (env.language === 'groovy' && env.type === 'string') {
+    var delimiter = env.content[0];
+
+    if (delimiter != "'") {
+      var pattern = /([^\\])(?:\$(?:\{.*?\}|[\w.]+))/;
+      if (delimiter === '$') {
+        pattern = /([^\$])(?:\$(?:\{.*?\}|[\w.]+))/;
+      }
+
+      // To prevent double HTML-encoding we have to decode env.content first
+      env.content = env.content.replace(/&lt;/g, '<').replace(/&amp;/g, '&');
+
+      env.content = Prism.highlight(env.content, {
+        expression: {
+          pattern: pattern,
+          lookbehind: true,
+          inside: Prism.languages.groovy,
+        },
+      });
+
+      env.classes.push(delimiter === '/' ? 'regex' : 'gstring');
+    }
+  }
+});