1 files changed, 62 insertions, 0 deletions
diff --git a/datetime.h b/datetime.h
new file mode 100644
index 00000000..ea1f3aa1
--- /dev/null
+++ b/datetime.h
@@ -0,0 +1,62 @@
+#ifndef _DATETIME_H
+#define _DATETIME_H
+
+#include "debug.h"
+
+#include <ctime>
+#include <sstream>
+
+namespace ledger {
+
+struct interval_t
+{
+  unsigned int years;
+  unsigned int months;
+  unsigned int seconds;
+  std::time_t  begin;
+  std::time_t  end;
+
+  interval_t(int _seconds = 0, int _months = 0, int _years = 0,
+	     std::time_t _begin = 0, std::time_t _end = 0)
+    : years(_years), months(_months), seconds(_seconds),
+      begin(_begin), end(_end) {
+    DEBUG_PRINT("ledger.memory.ctors", "ctor interval_t");
+  }
+  interval_t(const std::string& desc)
+    : years(0), months(0), seconds(0), begin(0), end(0){
+    DEBUG_PRINT("ledger.memory.ctors", "ctor interval_t");
+    std::istringstream stream(desc);
+    parse(stream);
+  }
+#ifdef DEBUG_ENABLED
+  ~interval_t() {
+    DEBUG_PRINT("ledger.memory.dtors", "dtor interval_t");
+  }
+#endif
+
+  operator bool() const {
+    return seconds > 0 || months > 0 || years > 0;
+  }
+
+  void start(const std::time_t moment) {
+    begin = first(moment);
+  }
+  std::time_t first(const std::time_t moment = 0) const;
+  std::time_t increment(const std::time_t) const;
+
+  void parse(std::istream& in);
+};
+
+extern std::time_t now;
+extern int	   now_year;
+
+bool parse_date_mask(const char * date_str, struct std::tm * result);
+
+bool parse_date(const char * date_str, std::time_t * result,
+		const int year = -1);
+
+bool quick_parse_date(const char * date_str, std::time_t * result);
+
+} // namespace ledger
+
+#endif // _DATETIME_H