feat: parse study load table

parsers.js

@@ -0,0 +1,50 @@
+(function (root, factory) {
+  if (typeof module === 'object' && module.exports) {
+    module.exports = factory();
+  } else {
+    root.ISMIStools = Object.assign(root.ISMIStools || {}, factory());
+  }
+})(typeof self !== 'undefined' ? self : this, function () {
+  'use strict';
+
+  function cleanText(s) {
+    return String(s == null ? '' : s)
+      .replace(/<[^>]+>/g, ' ')
+      .replace(/&nbsp;/gi, ' ')
+      .replace(/\s+/g, ' ')
+      .trim();
+  }
+
+  function extractRows(html) {
+    const rows = [];
+    const trRe = /<tr[^>]*>([\s\S]*?)<\/tr>/gi;
+    let trMatch;
+    while ((trMatch = trRe.exec(html)) !== null) {
+      const rowHtml = trMatch[1];
+      if (/<th/i.test(rowHtml)) continue;
+      const tds = [];
+      const tdRe = /<td[^>]*>([\s\S]*?)<\/td>/gi;
+      let tdMatch;
+      while ((tdMatch = tdRe.exec(rowHtml)) !== null) {
+        tds.push(cleanText(tdMatch[1]));
+      }
+      rows.push(tds);
+    }
+    return rows;
+  }
+
+  function parseStudyLoadTable(html) {
+    return extractRows(html)
+      .filter((tds) => tds.length >= 6)
+      .map((tds) => ({
+        group: tds[0],
+        courseCode: tds[1],
+        schedule: tds[2],
+        faculty: tds[3],
+        units: tds[4],
+        status: tds[5]
+      }));
+  }
+
+  return { parseStudyLoadTable };
+});