Major refractor

- Add regex search and replace
- Add chunk iterator + update line iterator.
- Cleanup/formatting.

src/main.cc

@@ -5,18 +5,15 @@
 
 int main() {
   const char *text_o =
-    "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqr\n"
-    "st\n"
-    "uv\n"
-    "wx\n"
-    "yzabcdefghijklmnopqrstuvwxyz\n";
+    "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz";
 
   uint32_t len = strlen(text_o);
   char *text = strdup(text_o);
 
   Vase vase = Vase(text, len);
 
-  vase.insert(14, "gr\ntt", 5);
+  vase.insert(1, "bcgr\ntt", 5);
+  vase.insert(2, "cgr\ntt", 5);
   vase.insert(58, "gr\ntt", 5);
   vase.insert(100, "gr\ntt", 5);
   vase.insert(20, "gr\ntt", 5);
@@ -26,17 +23,33 @@ int main() {
   vase.type(7, '3');
   vase.type(8, '4');
 
-  vase.erase(vase.offset_of(7, 3), -3);
+  vase.erase(offset_of(vase.root, 7, 3), -3);
 
-  print_shard(vase.root);
+  std::vector<RegexMatch> matches = regex_search(vase.root, "a(.)c", 0, vase.length(), PCRE2_MULTILINE, false);
+  print_regex(matches);
+  std::cout << "\n\n";
 
-  std::cout << (int)vase.offset_of(6, 0) << "\n\n";
+  std::cout << "\n\n"
+            << vase.to_string();
 
-  LineIterator it(vase.root, 3);
+  // supports gisxUn
+  vase.regex_search_replace("a(.)c", 0, vase.length(), "|$1|", "g");
+
+  /*print_shard(vase.root);
+
+  LineIterator it(vase.root, 0);
   std::string line;
   while (it.next(line))
     std::cout << line << "\n";
 
+  std::cout << "\n\n";
+
+  ChunkIterator it2(vase.root);
+  const char *data;
+  uint32_t length;
+  while (it2.next(&data, &length))
+    std::cout << std::string(data, length) << "\n|\n";*/
+
   std::cout << "\n\n"
             << vase.to_string();