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-rw-r--r--libxsde/xsde/cxx/parser/non-validating/duration.cxx166
1 files changed, 166 insertions, 0 deletions
diff --git a/libxsde/xsde/cxx/parser/non-validating/duration.cxx b/libxsde/xsde/cxx/parser/non-validating/duration.cxx
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+++ b/libxsde/xsde/cxx/parser/non-validating/duration.cxx
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+// file : xsde/cxx/parser/non-validating/duration.cxx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2009 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);
+ }
+ }
+ }
+ }
+}