chore: add prismjs for syntax highlighting

1 files changed, 69 insertions, 0 deletions

diff --git a/public/prism/prism-latex.js b/public/prism/prism-latex.js
new file mode 100644
index 0000000..35aefec
--- /dev/null
+++ b/public/prism/prism-latex.js
@@ -0,0 +1,69 @@
+(function (Prism) {
+  var funcPattern = /\\(?:[^a-z()[\]]|[a-z*]+)/i;
+  var insideEqu = {
+    'equation-command': {
+      pattern: funcPattern,
+      alias: 'regex',
+    },
+  };
+
+  Prism.languages.latex = {
+    comment: /%.*/,
+    // the verbatim environment prints whitespace to the document
+    cdata: {
+      pattern:
+        /(\\begin\{((?:lstlisting|verbatim)\*?)\})[\s\S]*?(?=\\end\{\2\})/,
+      lookbehind: true,
+    },
+    /*
+     * equations can be between $$ $$ or $ $ or \( \) or \[ \]
+     * (all are multiline)
+     */
+    equation: [
+      {
+        pattern:
+          /\$\$(?:\\[\s\S]|[^\\$])+\$\$|\$(?:\\[\s\S]|[^\\$])+\$|\\\([\s\S]*?\\\)|\\\[[\s\S]*?\\\]/,
+        inside: insideEqu,
+        alias: 'string',
+      },
+      {
+        pattern:
+          /(\\begin\{((?:align|eqnarray|equation|gather|math|multline)\*?)\})[\s\S]*?(?=\\end\{\2\})/,
+        lookbehind: true,
+        inside: insideEqu,
+        alias: 'string',
+      },
+    ],
+    /*
+     * arguments which are keywords or references are highlighted
+     * as keywords
+     */
+    keyword: {
+      pattern:
+        /(\\(?:begin|cite|documentclass|end|label|ref|usepackage)(?:\[[^\]]+\])?\{)[^}]+(?=\})/,
+      lookbehind: true,
+    },
+    url: {
+      pattern: /(\\url\{)[^}]+(?=\})/,
+      lookbehind: true,
+    },
+    /*
+     * section or chapter headlines are highlighted as bold so that
+     * they stand out more
+     */
+    headline: {
+      pattern:
+        /(\\(?:chapter|frametitle|paragraph|part|section|subparagraph|subsection|subsubparagraph|subsubsection|subsubsubparagraph)\*?(?:\[[^\]]+\])?\{)[^}]+(?=\})/,
+      lookbehind: true,
+      alias: 'class-name',
+    },
+    function: {
+      pattern: funcPattern,
+      alias: 'selector',
+    },
+    punctuation: /[[\]{}&]/,
+  };
+
+  Prism.languages.tex = Prism.languages.latex;
+  Prism.languages.context = Prism.languages.latex;
+})(Prism);