Further expansion of string api.

3 files changed, 24 insertions, 23 deletions

diff --git a/include/fud_result.hpp b/include/fud_result.hpp
index 9c69800..e4e36cf 100644
--- a/include/fud_result.hpp
+++ b/include/fud_result.hpp
@@ -24,7 +24,7 @@
 namespace fud {
 
 template<typename T, typename E>
-class Result {
+class [[nodiscard]] Result {
 public:
     using ResultType = Result<T, E>;
     static ResultType okay(const T& okay)
diff --git a/include/fud_string.hpp b/include/fud_string.hpp
index 5229f26..f7e4813 100644
--- a/include/fud_string.hpp
+++ b/include/fud_string.hpp
@@ -47,6 +47,11 @@ class String {
         return m_length;
     }
 
+    [[nodiscard]] constexpr bool empty() const
+    {
+        return m_length == 0;
+    }
+
     [[nodiscard]] constexpr size_t size() const
     {
         return m_length + 1;
@@ -89,6 +94,8 @@ class String {
 
     [[nodiscard]] FudStatus nullTerminate();
 
+    [[nodiscard]] std::optional<utf8> back();
+
     [[nodiscard]] constexpr size_t remainingLength() const
     {
         if (m_length >= m_capacity) {
@@ -136,7 +143,7 @@ class StringView {
     }
 
     StringView(size_t strLen, const char* strData) :
-        m_length(strLen),                                   // line break
+        m_length(strLen),                              // line break
         m_data{reinterpret_cast<const utf8*>(strData)} // NOLINT(cppcoreguidelines-pro-type-reinterpret-cast)
     {
     }
diff --git a/include/libfud.hpp b/include/libfud.hpp
index ceb1b20..a0b2909 100644
--- a/include/libfud.hpp
+++ b/include/libfud.hpp
@@ -18,31 +18,25 @@
 #ifndef LIBFUD_HPP
 #define LIBFUD_HPP
 
-#include "fud_status.hpp" // IWYU pragma: export
+#include "fud_status.hpp"
+#include "fud_result.hpp"
+#include "fud_string.hpp"
 
-#include "fud_result.hpp" // IWYU pragma: export
-
-#include "fud_memory.hpp" // IWYU pragma: export
-
-#include "fud_assert.hpp" // IWYU pragma: export
-
-#include "fud_array.hpp" // IWYU pragma: export
-
-#include "fud_c_file.hpp" // IWYU pragma: export
-
-#include "fud_fud_type_traits.hpp" // IWYU pragma: export
-
-#include "fud_string.hpp" // IWYU pragma: export
-
-#include "fud_unique_array.hpp" // IWYU pragma: export
+namespace fud {
 
-#include "fud_utf8.hpp" // IWYU pragma: export
+Result<String, FudStatus> getEnv(const char* name);
 
-#include "fud_utf8_iterator.hpp" // IWYU pragma: export
+template<typename T>
+concept CStringRepr = requires(T a)
+{
+    { a.c_str() } -> std::convertible_to<const char*>;
+};
 
-namespace fud {
-
-void fud();
+template <CStringRepr T>
+Result<String, FudStatus> getEnv(const T& name)
+{
+    return getEnv(name.c_str());
+}
 
 }