ReactOS  0.4.15-dev-2703-g05fb0f1
argv_parser.h
Go to the documentation of this file.
1 /*
2  Copyright (c) 2009 KJK::Hyperion
3 
4  Permission is hereby granted, free of charge, to any person obtaining a
5  copy of this software and associated documentation files (the "Software"),
6  to deal in the Software without restriction, including without limitation
7  the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  and/or sell copies of the Software, and to permit persons to whom the
9  Software is furnished to do so, subject to the following conditions:
10 
11  The above copyright notice and this permission notice shall be included in
12  all copies or substantial portions of the Software.
13 
14  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20  DEALINGS IN THE SOFTWARE.
21 */
22 
23 #ifndef KJK_ARGV_PARSER_H_
24 #define KJK_ARGV_PARSER_H_
25 
26 #include <iterator>
28 
29 namespace kjk
30 {
31  namespace details
32  {
33  template<class Traits>
34  bool is_separator(typename Traits::int_type c)
35  {
36  return Traits::eq_int_type(c, ' ') || Traits::eq_int_type(c, '\t');
37  }
38  }
39 
40  template<class Elem, class Traits, class InIter, class OutIter>
41  InIter copy_argument(InIter cur, InIter end, OutIter arg)
42  {
43  typename Traits::int_type c;
44  bool quoting = false;
45 
46  while(cur != end)
47  {
48  c = Traits::to_int_type(*cur);
49 
50  if(!details::is_separator<Traits>(c))
51  break;
52 
53  ++ cur;
54  }
55 
56  while(cur != end)
57  {
58  typedef typename std::iterator_traits<InIter>::difference_type difference_type;
59  difference_type backslashes(0);
60 
61  do
62  {
63  c = Traits::to_int_type(*cur);
64  ++ cur;
65 
66  if(Traits::eq_int_type(c, '\\'))
67  ++ backslashes;
68  else
69  break;
70  }
71  while(cur != end);
72 
73  if(Traits::eq_int_type(c, '"'))
74  {
75  // c == '"'
76 
77  if((backslashes % 2) == 0)
78  {
79  // 2N backslashes + "" in quote = N backslashes, literal "
80  if(quoting && cur != end && Traits::eq_int_type(Traits::to_int_type(*cur), '"'))
81  {
82  c = '"';
83  ++ cur;
84  }
85  // 2N backslashes + " = N backslashes, toggle quoting
86  else
87  {
88  quoting = !quoting;
89  c = Traits::eof();
90  }
91 
92  }
93  // 2N+1 backslashes + " = N backslashes, literal "
94 
95  backslashes /= 2;
96  }
97 
98  // Flush backslashes
99  for(difference_type i = 0; i < backslashes; ++ i)
100  *arg ++ = Traits::to_char_type('\\');
101 
102  // Handle current character, unless it was a special quote
103  if(c != Traits::eof())
104  {
105  if(details::is_separator<Traits>(c) && !quoting)
106  break;
107  else
108  *arg ++ = Traits::to_char_type(c);
109  }
110  }
111 
112  while(cur != end)
113  {
114  c = Traits::to_int_type(*cur);
115 
116  if(!details::is_separator<Traits>(c))
117  break;
118 
119  ++ cur;
120  }
121 
122  return cur;
123  }
124 
125  template<class InIter, class OutIter>
126  InIter copy_argument(InIter cur, InIter end, OutIter arg)
127  {
128  return copy_argument
129  <
130  typename std::iterator_traits<InIter>::value_type,
131  typename std::char_traits<typename std::iterator_traits<InIter>::value_type>,
132  InIter,
133  OutIter
134  >
135  (cur, end, arg);
136  }
137 
138  template<class Elem, class Traits, class InIter>
139  InIter skip_argument(InIter cur, InIter end)
140  {
142  }
143 
144  template<class InIter>
145  InIter skip_argument(InIter cur, InIter end)
146  {
147  return copy_argument
148  <
149  typename std::iterator_traits<InIter>::value_type,
150  typename std::char_traits<typename std::iterator_traits<InIter>::value_type>,
151  InIter
152  >
154  }
155 }
156 
157 #endif
158 
159 // EOF
void * arg
Definition: msvc.h:10
bool is_separator(typename Traits::int_type c)
Definition: argv_parser.h:34
const GLubyte * c
Definition: glext.h:8905
GLuint GLuint end
Definition: gl.h:1545
FxCollectionEntry * cur
_Check_return_ _CRTIMP int __cdecl __cdecl eof(_In_ int _FileHandle)
InIter skip_argument(InIter cur, InIter end)
Definition: argv_parser.h:139
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
InIter copy_argument(InIter cur, InIter end, OutIter arg)
Definition: argv_parser.h:41
#define c
Definition: ke_i.h:80
int details
Definition: msacm.c:1365