hemplate

commit 5bd98de2a3f7172979d2807874c80f1573d0e103
parent e110ecd2946f29e9b761e672950aba4c1f1827f0
Author: Dimitrije Dobrota <mail@dimitrijedobrota.com>
Date:   Sun, 19 Jan 2025 20:39:13 +0100

Add functions to format time according to standard

Diffstat:
M
CMakeLists.txt
 | 
3
++-
M
include/hemplate/classes.hpp
 | 
9
++++++++-
A
source/classes.cpp
 | 
49
+++++++++++++++++++++++++++++++++++++++++++++++++

3 files changed, 59 insertions(+), 2 deletions(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -4,7 +4,7 @@ include(cmake/prelude.cmake)
 
 project(
     hemplate
-    VERSION 0.2.0
+    VERSION 0.2.2
     DESCRIPTION "Simple HTML template engine"
     HOMEPAGE_URL "https://git.dimitrijedobrota.com/hemplate.git"
     LANGUAGES CXX
@@ -17,6 +17,7 @@ include(cmake/variables.cmake)
 
 add_library(
     hemplate_hemplate
+    source/classes.cpp
     source/element.cpp
     source/attribute.cpp
 )
diff --git a/include/hemplate/classes.hpp b/include/hemplate/classes.hpp
@@ -197,6 +197,9 @@ using wbr        = elementAtomic<tag<"wbr">>;
 
 namespace rss {
 
+std::string format_time(int64_t sec);
+std::string format_time_now();
+
 class rss : public elementBoolean<tag<"rss">>
 {
 public:
@@ -255,6 +258,9 @@ using width          = elementBoolean<tag<"width">>;
 
 namespace atom {
 
+std::string format_time(int64_t sec);
+std::string format_time_now();
+
 class feed : public elementBoolean<tag<"feed">>
 {
 public:
@@ -269,6 +275,7 @@ using category      = elementBoolean<tag<"category">>;
 using content       = elementBoolean<tag<"content">>;
 using contributor   = elementBoolean<tag<"contributor">>;
 using div           = elementBoolean<tag<"div">>;
+using email         = elementBoolean<tag<"email">>;
 using entry         = elementBoolean<tag<"entry">>;
 using generator     = elementBoolean<tag<"generator">>;
 using icon          = elementBoolean<tag<"icon">>;
@@ -286,8 +293,8 @@ using subtitle      = elementBoolean<tag<"subtitle">>;
 using summary       = elementBoolean<tag<"summary">>;
 using text          = elementBoolean<tag<"">>;
 using title         = elementBoolean<tag<"title">>;
-using update        = elementBoolean<tag<"update">>;
 using updated       = elementBoolean<tag<"updated">>;
+using uri           = elementBoolean<tag<"uri">>;
 using usagePoint    = elementBoolean<tag<"usagePoint">>;
 
 }  // namespace atom
diff --git a/source/classes.cpp b/source/classes.cpp
@@ -0,0 +1,49 @@
+#include <chrono>
+#include <ctime>
+#include <format>
+#include <string>
+
+auto sec_since_epoch(int64_t sec)
+{
+  return std::chrono::time_point_cast<std::chrono::seconds>(
+      std::chrono::system_clock::from_time_t(time_t {0})
+      + std::chrono::seconds(sec));
+}
+
+auto get_time_now()
+{
+  return std::chrono::current_zone()
+             ->to_local(std::chrono::system_clock::now())
+             .time_since_epoch()
+      / std::chrono::seconds(1);
+}
+
+namespace hemplate::atom {
+
+std::string format_time(int64_t sec)
+{
+  static constexpr const char* rfc3339_f = "{:%FT%H:%M:%SZ}";
+  return std::format(rfc3339_f, sec_since_epoch(sec));
+}
+
+std::string format_time_now()
+{
+  return format_time(get_time_now());
+}
+
+}  // namespace hemplate::atom
+
+namespace hemplate::rss {
+
+std::string format_time(int64_t sec)
+{
+  static constexpr const char* rfc882_f = "{:%a, %d %b %Y %H:%M:%S %z}";
+  return std::format(rfc882_f, sec_since_epoch(sec));
+}
+
+std::string format_time_now()
+{
+  return format_time(get_time_now());
+}
+
+}  // namespace hemplate::rss