chore: add prismjs for syntax highlighting

1 files changed, 119 insertions, 0 deletions

diff --git a/public/prism/prism-kumir.js b/public/prism/prism-kumir.js
new file mode 100644
index 0000000..6705e38
--- /dev/null
+++ b/public/prism/prism-kumir.js
@@ -0,0 +1,119 @@
+/* eslint-disable regexp/no-dupe-characters-character-class */
+(function (Prism) {
+  /**
+   * Regular expression for characters that are not allowed in identifiers.
+   *
+   * @type {string}
+   */
+  var nonId = /\s\x00-\x1f\x22-\x2f\x3a-\x3f\x5b-\x5e\x60\x7b-\x7e/.source;
+
+  /**
+   * Surround a regular expression for IDs with patterns for non-ID sequences.
+   *
+   * @param {string} pattern A regular expression for identifiers.
+   * @param {string} [flags] The regular expression flags.
+   * @returns {RegExp} A wrapped regular expression for identifiers.
+   */
+  function wrapId(pattern, flags) {
+    return RegExp(pattern.replace(/<nonId>/g, nonId), flags);
+  }
+
+  Prism.languages.kumir = {
+    comment: {
+      pattern: /\|.*/,
+    },
+
+    prolog: {
+      pattern: /#.*/,
+      greedy: true,
+    },
+
+    string: {
+      pattern: /"[^\n\r"]*"|'[^\n\r']*'/,
+      greedy: true,
+    },
+
+    boolean: {
+      pattern: wrapId(/(^|[<nonId>])(?:да|нет)(?=[<nonId>]|$)/.source),
+      lookbehind: true,
+    },
+
+    'operator-word': {
+      pattern: wrapId(/(^|[<nonId>])(?:и|или|не)(?=[<nonId>]|$)/.source),
+      lookbehind: true,
+      alias: 'keyword',
+    },
+
+    'system-variable': {
+      pattern: wrapId(/(^|[<nonId>])знач(?=[<nonId>]|$)/.source),
+      lookbehind: true,
+      alias: 'keyword',
+    },
+
+    type: [
+      {
+        pattern: wrapId(
+          /(^|[<nonId>])(?:вещ|лит|лог|сим|цел)(?:\x20*таб)?(?=[<nonId>]|$)/
+            .source
+        ),
+        lookbehind: true,
+        alias: 'builtin',
+      },
+      {
+        pattern: wrapId(
+          /(^|[<nonId>])(?:компл|сканкод|файл|цвет)(?=[<nonId>]|$)/.source
+        ),
+        lookbehind: true,
+        alias: 'important',
+      },
+    ],
+
+    /**
+     * Should be performed after searching for type names because of "таб".
+     * "таб" is a reserved word, but never used without a preceding type name.
+     * "НАЗНАЧИТЬ", "Фввод", and "Фвывод" are not reserved words.
+     */
+    keyword: {
+      pattern: wrapId(
+        /(^|[<nonId>])(?:алг|арг(?:\x20*рез)?|ввод|ВКЛЮЧИТЬ|вс[её]|выбор|вывод|выход|дано|для|до|дс|если|иначе|исп|использовать|кон(?:(?:\x20+|_)исп)?|кц(?:(?:\x20+|_)при)?|надо|нач|нс|нц|от|пауза|пока|при|раза?|рез|стоп|таб|то|утв|шаг)(?=[<nonId>]|$)/
+          .source
+      ),
+      lookbehind: true,
+    },
+
+    /** Should be performed after searching for reserved words. */
+    name: {
+      // eslint-disable-next-line regexp/no-super-linear-backtracking
+      pattern: wrapId(
+        /(^|[<nonId>])[^\d<nonId>][^<nonId>]*(?:\x20+[^<nonId>]+)*(?=[<nonId>]|$)/
+          .source
+      ),
+      lookbehind: true,
+    },
+
+    /** Should be performed after searching for names. */
+    number: {
+      pattern: wrapId(
+        /(^|[<nonId>])(?:\B\$[\da-f]+\b|(?:\b\d+(?:\.\d*)?|\B\.\d+)(?:e[+-]?\d+)?)(?=[<nonId>]|$)/
+          .source,
+        'i'
+      ),
+      lookbehind: true,
+    },
+
+    /** Should be performed after searching for words. */
+    punctuation: /:=|[(),:;\[\]]/,
+
+    /**
+     * Should be performed after searching for
+     * - numeric constants (because of "+" and "-");
+     * - punctuation marks (because of ":=" and "=").
+     */
+    'operator-char': {
+      pattern: /\*\*?|<[=>]?|>=?|[-+/=]/,
+      alias: 'operator',
+    },
+  };
+
+  Prism.languages.kum = Prism.languages.kumir;
+})(Prism);