Merge pull request #1 from szymon-jozef/parsing-markdown

Added parsing markdown functionality

src/markdown.cpp

@@ -1,5 +1,6 @@
 #include "markdown.hpp"
 #include "utils.hpp"
+#include <cmath>
 #include <fstream>
 #include <iostream>
 #include <map>
@@ -41,3 +42,33 @@ std::optional<Metadata> get_metadata(const std::string &FILE_PATH) {
                                 metadata_map["title"],
                                 convert_string_to_set(metadata_map["tags"])});
 }
+
+static void html_callback(const MD_CHAR *data, MD_SIZE size, void *userdata) {
+  std::string *out = static_cast<std::string *>(userdata);
+  out->append(data, size);
+}
+
+std::string get_html(const std::string &FILE_PATH) {
+  std::fstream file(FILE_PATH);
+  std::string buffer, file_string, out;
+  getline(file, buffer);
+  bool is_metadata = buffer == "---";
+
+  /* skip metadata */
+  if (is_metadata) {
+    while (getline(file, buffer)) {
+      if (buffer == "---") {
+        break;
+      }
+    }
+  } else {
+    file_string += buffer + '\n';
+  }
+
+  while (getline(file, buffer)) {
+    file_string += buffer + '\n';
+  }
+
+  md_html(file_string.c_str(), file_string.size(), html_callback, &out, 0, 0);
+  return out;
+}

src/tests.cpp

@@ -47,3 +47,44 @@ TEST_CASE("get_metadata function test with a file that doesn't have metadata") {
   std::optional<Metadata> result = get_metadata(FILE_NAME);
   REQUIRE(result == std::nullopt);
 }
+
+/* theres to much testing stuff in examples
+ * i need to move tests to some other directory with testing files
+ */
+TEST_CASE("get_html function parsing test") {
+  const std::string INPUT = "../examples/post.md";
+  const std::string EXPECTED_OUTPUT = R"HTML(<h1>This is an example post</h1>
+<p>In this example we will do a couple of cool markdown things.</p>
+<h2>This is a h2 header</h2>
+<p><em>This text is written in italic!</em></p>
+<h3>Look at this!</h3>
+<p><strong>This text is BOLD!</strong></p>
+<h2>Hello world!</h2>
+<pre><code class="language-cpp">#include &lt;iostream&gt;
+
+int main() {
+    std::cout &lt;&lt; &quot;Hello world!&quot; &lt;&lt; std::endl;
+}
+</code></pre>
+<p>This is super cool!</p>
+<h2>Time to link some random website!</h2>
+<p>This <a href="https://example.com">should be clickable</a></p>
+<h2>Image test</h2>
+<p><img src="./image.png" alt="this should show an image"></p>
+<h2>This is an ordered list</h2>
+<ol>
+<li>one</li>
+<li>six</li>
+<li>seven</li>
+</ol>
+<h2>This is an unordered one</h2>
+<ul>
+<li>six</li>
+<li>nine</li>
+<li>six</li>
+<li>nine</li>
+</ul>
+)HTML";
+
+  REQUIRE(get_html(INPUT) == EXPECTED_OUTPUT);
+}