Added Easy::strtime_utc() and Easy::strtime_local()

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required (VERSION 3.7)
 project (mastodon-cpp
-         VERSION 0.10.1
+         VERSION 0.11.0
          LANGUAGES CXX
 )
 

examples/example13_easy_stream.cpp

@@ -11,7 +11,6 @@
 #include <memory>
 #include <vector>
 #include <chrono>
-#include <ctime>
 
 // If we are compiling mastodon-cpp, use another include path
 #ifdef MASTODON_CPP
@@ -28,18 +27,6 @@ using Mastodon::Easy;
 using std::cout;
 using std::chrono::system_clock;
 
-// Transform time_point into a string with the local time
-std::string get_localtime(const system_clock::time_point &timepoint)
-{
-    std::time_t time = system_clock::to_time_t(timepoint);
-    std::tm *timeinfo = std::localtime(&time);
-    char buffer[9];
-
-    std::strftime(buffer, 9, "%T", timeinfo);
-
-    return buffer;
-}
-
 int main(int argc, char *argv[])
 {
     if (argc < 3)
@@ -80,7 +67,8 @@ int main(int argc, char *argv[])
             {
                 case Easy::event_type::Update:
                     status.from_string(event.second);
-                    cout << "[" << get_localtime(status.created_at()) << "] ";
+                    cout << "[" <<
+                        Easy::strtime_local(status.created_at(), "%T") << "] ";
                     cout << "Status from: " << status.account().acct()
                          << " (" << status.url() << ")\n";
                     break;

examples/example14_easy_treeview.cpp

@@ -31,18 +31,6 @@ using Mastodon::Easy;
 using std::cout;
 using std::chrono::system_clock;
 
-// Transform time_point into a string with the local time
-std::string get_localtime(const system_clock::time_point &timepoint)
-{
-    std::time_t time = system_clock::to_time_t(timepoint);
-    std::tm *timeinfo = std::localtime(&time);
-    char buffer[9];
-
-    std::strftime(buffer, 9, "%T", timeinfo);
-
-    return buffer;
-}
-
 // Print a status to stdout, nicely formatted
 void format_status(const Easy::Status &status, const std::uint8_t &level)
 {
@@ -67,7 +55,7 @@ void format_status(const Easy::Status &status, const std::uint8_t &level)
         }
     }
     cout << space << "|                                 "
-         << get_localtime(status.created_at()) << '\n';
+         << Easy::strtime_local(status.created_at(), "%T") << '\n';
     cout << space << "+-----------------------------------------" << std::endl;
 }
 
@@ -77,14 +65,19 @@ std::uint16_t print_status(Easy &masto, const std::string &id,
 {
     std::uint16_t ret;
     std::string answer;
+    API::parametermap parameters =
+    {
+        { "id", { id }}
+    };
 
-    ret = masto.get(Mastodon::API::v1::statuses_id, id, answer);
+    ret = masto.get(Mastodon::API::v1::statuses_id, parameters, answer);
 
     if (ret == 0)
     {
         format_status(Easy::Status(answer), level);
 
-        ret = masto.get(Mastodon::API::v1::statuses_id_context, id, answer);
+        ret = masto.get(Mastodon::API::v1::statuses_id_context,
+                        parameters, answer);
         if (ret == 0)
         {
             Easy::Context context(answer);

src/easy/easy.cpp

@@ -82,6 +82,32 @@ const Easy::Link Easy::get_link() const
     return Link(get_header("Link"));
 }
 
+const string Easy::strtime_utc(const system_clock::time_point &timepoint,
+                               const string &format)
+{
+    constexpr std::uint_fast16_t bufsize = 1024;
+    std::time_t time = system_clock::to_time_t(timepoint);
+    std::tm *timeinfo = std::gmtime(&time);
+    char buffer[bufsize];
+
+    std::strftime(buffer, bufsize, format.c_str(), timeinfo);
+
+    return buffer;
+}
+
+const string Easy::strtime_local(const system_clock::time_point &timepoint,
+                                 const string &format)
+{
+    constexpr std::uint_fast16_t bufsize = 1024;
+    std::time_t time = system_clock::to_time_t(timepoint);
+    std::tm *timeinfo = std::localtime(&time);
+    char buffer[bufsize];
+
+    std::strftime(buffer, bufsize, format.c_str(), timeinfo);
+
+    return buffer;
+}
+
 Easy::Link::Link(const string &link_header)
 : _next(0)
 , _prev(0)

src/easy/easy.hpp

@@ -181,6 +181,33 @@ public:
      */
     const Link get_link() const;
 
+    /*!
+     *  @brief  Converts a time_point to a string
+     *  
+     *          The return value can not exceed 1023 chars.
+     *
+     *  @param  timepoint  The timepoint
+     *  @param  format     The format of the string, same as with `strftime`.
+     *  
+     *  Example:
+     *  @code
+     *  auto timepoint = status.created_at();
+     *  cout << Easy::strtime_utc(timepoint, "%F, %T") << '\n';
+     *  @endcode
+     *
+     *  @return The UTC time as string
+     */
+    static const string strtime_utc(const system_clock::time_point &timepoint,
+                                    const string &format);
+
+    /*!
+     *  @brief  See strtime_utc
+     *
+     *  @return The local time as string
+     */
+    static const string strtime_local(const system_clock::time_point &timepoint,
+                                      const string &format);
+
     /*!
      *  @brief  Base class for all entities.
      */