1 files changed, 51 insertions, 0 deletions
diff --git a/src/mbgl/util/url.cpp b/src/mbgl/util/url.cpp
new file mode 100644
index 0000000000..e9b9672109
--- /dev/null
+++ b/src/mbgl/util/url.cpp
@@ -0,0 +1,51 @@
+#include <mbgl/util/url.hpp>
+
+#include <cctype>
+#include <iomanip>
+#include <sstream>
+#include <string>
+#include <cstdlib>
+#include <algorithm>
+
+namespace mbgl {
+namespace util {
+
+std::string percentEncode(const std::string& input) {
+    std::ostringstream encoded;
+
+    encoded.fill('0');
+    encoded << std::hex;
+
+    for (auto c : input) {
+        if (std::isalnum(c) || c == '-' || c == '_' || c == '.' || c == '~') {
+            encoded << c;
+        } else {
+            encoded << '%' << std::setw(2) << int(c);
+        }
+    }
+
+    return encoded.str();
+}
+
+std::string percentDecode(const std::string& input) {
+    std::string decoded;
+
+    auto it = input.begin();
+    const auto end = input.end();
+    char hex[3] = "00";
+
+    while (it != end) {
+        auto cur = std::find(it, end, '%');
+        decoded.append(it, cur);
+        it = cur;
+        if (cur != end) {
+            it += input.copy(hex, 2, cur - input.begin() + 1) + 1;
+            decoded += static_cast<char>(std::strtoul(hex, nullptr, 16));
+        }
+    }
+
+    return decoded;
+}
+
+}
+}