Added basic links support

1 files changed, 39 insertions, 0 deletions

diff --git a/markdown.cpp b/markdown.cpp
index 63f293d..3f2eb4e 100644
--- a/markdown.cpp
+++ b/markdown.cpp
@@ -1,9 +1,13 @@
 #include <unistd.h>
 
+#include <array>
+#include <cstdio>
 #include <fstream>
 #include <iostream>
 #include <iterator>
+#include <memory>
 #include <string>
+#include <string_view>
 
 #include <GL/glew.h>
 #include <GLFW/glfw3.h>
@@ -36,6 +40,41 @@ struct Markdown : public imgui_md
 			return g_font_bold;
 		}
 	}
+
+	void open_url() const override
+	{
+		std::array<char, 512> buffer;
+		std::string command = "browse -f markdown ";
+		std::string_view prefix(m_href.data(), 4);
+		if (prefix == "http")
+			command += m_href;
+		else
+		{
+			prefix.remove_suffix(2);
+			if (prefix == "//")
+				command += "https:" + m_href;
+			else
+			{
+				prefix.remove_suffix(1);
+				if (prefix == "/")
+				{
+					if (g_base_address.empty())
+						return; // TODO: an error
+					else
+						command += g_base_address + m_href;
+				}
+				else
+					return; // TODO: also an error
+			}
+		}
+		std::unique_ptr<FILE, decltype(&pclose)> opener(popen(command.c_str(), "r"), pclose);
+		if (!opener)
+			return; // TODO: time to do some error handling
+		while (nullptr != fgets(buffer.data(), buffer.size(), opener.get()))
+		{
+			// TODO: Support reopening
+		}
+	}
 };
 
 static void glfw_error_callback(int error, const char * description)