Drizzled Public API Documentation

boolean.cc
1 /* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
2  * vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
3  *
4  * Copyright (C) 2011 Brian Aker
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include <config.h>
22 
23 #include <drizzled/sql_string.h>
24 #include <drizzled/type/boolean.h>
25 #include <drizzled/charset.h>
26 
27 namespace drizzled {
28 namespace type {
29 
30 const char* convert(bool source, bool ansi_display)
31 {
32  if (source)
33  return ansi_display ? "YES" : "TRUE";
34  return ansi_display ? "NO" : "FALSE";
35 }
36 
37 void convert(String& destination, bool source, bool ansi_display)
38 {
39  const char* v= convert(source, ansi_display);
40  destination.alloc(strlen(v));
41  strcpy(destination.c_ptr(), v);
42  destination.length(strlen(v));
43 }
44 
45 bool convert(bool &destination, const char *source, const size_t source_length)
46 {
47  switch (source_length)
48  {
49  case 1:
50  {
51  switch (source[0])
52  {
53  case 'y': case 'Y':
54  case 't': case 'T': // PG compatibility
55  destination= true;
56  return true;
57 
58  case 'n': case 'N':
59  case 'f': case 'F': // PG compatibility
60  destination= false;
61  return true;
62  }
63  }
64  break;
65 
66  case 5:
67  if (not (system_charset_info->strcasecmp(source, "FALSE")))
68  {
69  destination= false;
70  return true;
71  }
72  break;
73 
74  case 4:
75  if (not (system_charset_info->strcasecmp(source, "TRUE")))
76  {
77  destination= true;
78  return true;
79  }
80  break;
81 
82  case 3:
83  if (not (system_charset_info->strcasecmp(source, "YES")))
84  {
85  destination= true;
86  return true;
87  }
88  break;
89 
90  case 2:
91  if (not (system_charset_info->strcasecmp(source, "NO")))
92  {
93  destination= false;
94  return true;
95  }
96  break;
97  }
98 
99  // Failure to match
100  destination= false;
101  return false;
102 }
103 
104 bool convert(bool &destination, String &source)
105 {
106  return convert(destination, source.c_ptr(), source.length());
107 }
108 
109 } /* namespace type */
110 } /* namespace drizzled */
TODO: Rename this file - func.h is stupid.