Fix angle bracket preservation in table cells and paragraphs (#18)

Author: arthurkowalsky

package-lock.json

@@ -13,8 +13,8 @@ function cleanContentOutsideCodeBlocks(content) {
         .replace(/<br\s*\/?>/gi, "\n")
         .replace(/\u2014/g, "-")
         .replace(/\u2013/g, "-");
-      while (/<[^>]+>/.test(line)) {
-        line = line.replace(/<[^>]+>/g, "");
+      while (/<\/?[a-zA-Z][^>]*>/.test(line)) {
+        line = line.replace(/<\/?[a-zA-Z][^>]*>/g, "");
       }
       return line;
     })

src/parser.js

@@ -0,0 +1,45 @@
+Feature: Table rendering in preview
+
+  Background:
+    Given the application is loaded
+
+  Scenario: Table with angle brackets preserves cell content
+    Given the editor contains:
+      """
+      | Category | Small | Medium | Large |
+      |---|---|---|---|
+      | Items | <50 units | 50-100 units | >100 units |
+      | Rules | <20 basic | 20-60 advanced | >60 complex |
+      """
+    When the preview renders
+    Then the preview should contain a "table" element
+    And the "table" should have 3 "tr" children
+    And the table should have 4 columns
+    And the preview should contain text "<50 units"
+    And the preview should contain text ">100 units"
+    And the preview should contain text "<20 basic"
+    And the preview should contain text ">60 complex"
+
+  Scenario: Table with mixed angle brackets and regular content
+    Given the editor contains:
+      """
+      | Metric | Threshold |
+      |---|---|
+      | Score | >90 points |
+      | Errors | <5 allowed |
+      | Range | 10-20 items |
+      """
+    When the preview renders
+    Then the preview should contain a "table" element
+    And the "table" should have 4 "tr" children
+    And the preview should contain text ">90 points"
+    And the preview should contain text "<5 allowed"
+
+  Scenario: Paragraph with angle brackets preserves content
+    Given the editor contains:
+      """
+      The value should be <100 and >50 for valid results.
+      """
+    When the preview renders
+    Then the preview should contain text "<100"
+    And the preview should contain text ">50"