aboutsummaryrefslogtreecommitdiff
path: root/libxsde/xsde/cxx/parser/validating/time.cxx
blob: a57dfd9aa877b4c2670857057ca0ea451640e97c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
// file      : xsde/cxx/parser/validating/time.cxx
// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC
// license   : GNU GPL v2 + exceptions; see accompanying LICENSE file

#include <stdlib.h> // strtod

#include <xsde/cxx/config.hxx>
#include <xsde/cxx/errno.hxx>

#include <xsde/cxx/parser/validating/time.hxx>
#include <xsde/cxx/parser/validating/time-zone.hxx>

namespace xsde
{
  namespace cxx
  {
    namespace parser
    {
      namespace validating
      {
        void time_pimpl::
        _pre ()
        {
#ifdef XSDE_EXCEPTIONS
          str_.assign ("", 0);
#else
          if (str_.assign ("", 0))
            _sys_error (sys_error::no_memory);
#endif
        }

        void time_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
          }
        }

        void time_pimpl::
        _post ()
        {
          char* s = str_.data ();
          ro_string tmp (s, str_.size ());
          ro_string::size_type n = trim_right (tmp);

          // time := HH:MM:SS[.S+][Z|(+|-)HH:MM]
          //

          if (n < 8 || s[2] != ':' || s[5] != ':')
          {
            _schema_error (schema_error::invalid_time_value);
            return;
          }

          // hours
          //
          char d1 = s[0];
          char d2 = s[1];

          if (d1 < '0' || d1 > '9' || d2 < '0' || d2 > '9')
          {
            _schema_error (schema_error::invalid_time_value);
            return;
          }

          hours_ = 10 * (d1 - '0') + (d2 - '0');

          if (hours_ > 24)
          {
            _schema_error (schema_error::invalid_time_value);
            return;
          }

          // minutes
          //
          d1 = s[3];
          d2 = s[4];

          if (d1 < '0' || d1 > '9' || d2 < '0' || d2 > '9')
          {
            _schema_error (schema_error::invalid_time_value);
            return;
          }

          minutes_ = 10 * (d1 - '0') + (d2 - '0');

          if (minutes_ > 59)
          {
            _schema_error (schema_error::invalid_time_value);
            return;
          }

          // Find the end of the seconds fragment.
          //
          ro_string::size_type pos = 8;
          for (; pos < n; ++pos)
          {
            char c = s[pos];

            if (c == 'Z' || c == '+' || c == '-')
              break;
          }

          // At least one digit should follow the fraction point.
          //
          if ((pos - 6) == 3)
          {
            _schema_error (schema_error::invalid_time_value);
            return;
          }

          // Parse the time zone first so that we can truncate and
          // reuse the string.
          //
          if (pos < n)
          {
            if (!bits::parse_time_zone (s + pos, n - pos, zh_, zm_))
            {
              _schema_error (schema_error::invalid_time_value);
              return;
            }

            z_ = true;
          }
          else
            z_ = false;

          // seconds
          //
          str_.truncate (pos);

          char* p;
          set_errno (0);
          seconds_ = strtod (s + 6, &p);

          if (*p != '\0' || get_errno () != 0 || seconds_ >= 60.0)
          {
            _schema_error (schema_error::invalid_time_value);
            return;
          }

          if (hours_ == 24 && (minutes_ != 0 || seconds_ != 0.0))
          {
            _schema_error (schema_error::invalid_time_value);
            return;
          }
        }

        time time_pimpl::
        post_time ()
        {
          return z_
            ? time (hours_, minutes_, seconds_, zh_, zm_)
            : time (hours_, minutes_, seconds_);
        }
      }
    }
  }
}