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// file : xsde/cxx/parser/non-validating/duration.cxx
// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
#include <stdlib.h> // strtoul, strtod
#include <xsde/cxx/config.hxx>
#include <xsde/cxx/parser/non-validating/duration.hxx>
namespace xsde
{
namespace cxx
{
namespace parser
{
namespace non_validating
{
void duration_pimpl::
_pre ()
{
#ifdef XSDE_EXCEPTIONS
str_.assign ("", 0);
#else
if (str_.assign ("", 0))
_sys_error (sys_error::no_memory);
#endif
}
void duration_pimpl::
_characters (const ro_string& s)
{
if (str_.size () == 0)
{
ro_string tmp (s.data (), s.size ());
if (trim_left (tmp) != 0)
{
#ifdef XSDE_EXCEPTIONS
str_.append (tmp.data (), tmp.size ());
#else
if (str_.append (tmp.data (), tmp.size ()))
_sys_error (sys_error::no_memory);
#endif
}
}
else
{
#ifdef XSDE_EXCEPTIONS
str_.append (s.data (), s.size ());
#else
if (str_.append (s.data (), s.size ()))
_sys_error (sys_error::no_memory);
#endif
}
}
static ro_string::size_type
rfind_delim (const char* s, ro_string::size_type pos)
{
const char* p = s + pos;
for (; p >= s; --p)
{
if (*p == 'Y' || *p == 'D' || *p == 'M' ||
*p == 'H' || *p == 'M' || *p == 'S' ||
*p == 'T' || *p == 'P')
break;
}
return p >= s ? p - s : ro_string::npos;
}
duration duration_pimpl::
post_duration ()
{
char* s = str_.data ();
ro_string tmp (s, str_.size ());
ro_string::size_type n = trim_right (tmp);
bool negative = false;
unsigned int years = 0;
unsigned int months = 0;
unsigned int days = 0;
unsigned int hours = 0;
unsigned int minutes = 0;
double seconds = 0.0;
// duration := [-]P[nY][nM][nD][TnHnMn[.n+]S]
//
if (n >= 3 && s[s[0] == '-' ? 1 : 0] == 'P')
{
if (s[0] == '-')
negative = true;
// Parse it backwards so that we can truncate and reuse
// the string.
//
ro_string::size_type pos = n - 1;
ro_string::size_type t_pos = tmp.find ('T');
if (s[pos] == 'S')
{
str_.truncate (pos);
pos = rfind_delim (s, pos - 1);
seconds = strtod (s + pos + 1, 0);
}
if (s[pos] == 'M' && t_pos != ro_string::npos && t_pos < pos)
{
str_.truncate (pos);
pos = rfind_delim (s, pos - 1);
minutes =
static_cast<unsigned int> (strtoul (s + pos + 1, 0, 10));
}
if (s[pos] == 'H')
{
str_.truncate (pos);
pos = rfind_delim (s, pos - 1);
hours =
static_cast<unsigned int> (strtoul (s + pos + 1, 0, 10));
}
if (s[pos] == 'T')
pos = rfind_delim (s, pos - 1);
if (s[pos] == 'D')
{
str_.truncate (pos);
pos = rfind_delim (s, pos - 1);
days =
static_cast<unsigned int> (strtoul (s + pos + 1, 0, 10));
}
if (s[pos] == 'M')
{
str_.truncate (pos);
pos = rfind_delim (s, pos - 1);
months =
static_cast<unsigned int> (strtoul (s + pos + 1, 0, 10));
}
if (s[pos] == 'Y')
{
str_.truncate (pos);
pos = rfind_delim (s, pos - 1);
years =
static_cast<unsigned int> (strtoul (s + pos + 1, 0, 10));
}
}
return duration (
negative, years, months, days, hours, minutes, seconds);
}
}
}
}
}
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