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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
#ifndef ACE_ARG_SHIFTER_T_CPP
#define ACE_ARG_SHIFTER_T_CPP
#include "ace/Arg_Shifter.h"
#include "ace/OS_NS_string.h"
#include "ace/OS_NS_strings.h"
#include "ace/OS_Errno.h"
#include "ace/OS_Memory.h"
ACE_RCSID (ace,
Arg_Shifter,
"$Id$")
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
template <typename CHAR_TYPE>
ACE_Arg_Shifter_T<CHAR_TYPE>::ACE_Arg_Shifter_T (int& argc,
const CHAR_TYPE** argv,
const CHAR_TYPE** temp)
: argc_ (argc),
total_size_ (argc),
temp_ (temp),
argv_ (argv),
current_index_ (0),
back_ (argc - 1),
front_ (0)
{
this->init ();
}
template <typename CHAR_TYPE>
ACE_Arg_Shifter_T<CHAR_TYPE>::ACE_Arg_Shifter_T (int& argc,
CHAR_TYPE** argv,
CHAR_TYPE** temp)
: argc_ (argc),
total_size_ (argc),
temp_ ((const CHAR_TYPE **) temp),
argv_ ((const CHAR_TYPE **) argv),
current_index_ (0),
back_ (argc - 1),
front_ (0)
{
this->init ();
}
template <typename CHAR_TYPE>
void
ACE_Arg_Shifter_T<CHAR_TYPE>::init (void)
{
// If not provided with one, allocate a temporary array.
if (this->temp_ == 0)
ACE_NEW (this->temp_,
const CHAR_TYPE *[this->total_size_]);
if (this->temp_ != 0)
{
// Fill the temporary array.
this->argc_ = 0;
for (int i = 0; i < this->total_size_; i++)
{
this->temp_[i] = this->argv_[i];
this->argv_[i] = 0;
}
}
else
{
// Allocation failed, prohibit iteration.
this->current_index_ = this->argc_;
this->front_ = this->argc_;
}
}
template <typename CHAR_TYPE>
ACE_Arg_Shifter_T<CHAR_TYPE>::~ACE_Arg_Shifter_T (void)
{
// Delete the temporary vector.
delete [] temp_;
}
template <typename CHAR_TYPE>
const CHAR_TYPE *
ACE_Arg_Shifter_T<CHAR_TYPE>::get_current (void) const
{
const CHAR_TYPE * retval = 0;
if (this->is_anything_left ())
retval = this->temp_[current_index_];
return retval;
}
template <typename CHAR_TYPE>
const CHAR_TYPE *
ACE_Arg_Shifter_T<CHAR_TYPE>::get_the_parameter (const CHAR_TYPE *flag)
{
// the return 0's abound because this method
// would otherwise be a deep if { } else { }
// check to see if any arguments still exist
if (!this->is_anything_left())
return 0;
// check to see if the flag is the argument
int const offset = this->cur_arg_strncasecmp (flag);
if (offset == -1)
return 0;
if (offset == 0)
{
this->consume_arg ();
if (!this->is_parameter_next())
{
return 0;
}
}
// the parameter is in the middle somewhere...
return this->temp_[current_index_] + offset;
}
template <typename CHAR_TYPE>
int
ACE_Arg_Shifter_T<CHAR_TYPE>::cur_arg_strncasecmp (const CHAR_TYPE *flag)
{
// Check for a current argument
if (this->is_anything_left())
{
size_t const flag_length = ACE_OS::strlen (flag);
// Check for presence of the flag
if (ACE_OS::strncasecmp(this->temp_[current_index_],
flag,
flag_length) == 0)
{
if (ACE_OS::strlen(temp_[current_index_]) ==
flag_length)
{
// match and lengths are equal
return 0;
}
else
{
// matches, with more info to boot!
size_t const remaining = ACE_OS::strspn
(this->temp_[current_index_] + flag_length,
ACE_TEXT (" ")) + flag_length;
return static_cast<int> (remaining);
}
}
}
// failure
return -1;
}
template <typename CHAR_TYPE>
int
ACE_Arg_Shifter_T<CHAR_TYPE>::consume_arg (int number)
{
int retval = 0;
// Stick knowns at the end of the vector (consumed).
if (this->is_anything_left() >= number)
{
for (int i = 0, j = this->back_ - (number - 1);
i < number;
++i, ++j, ++this->current_index_)
this->argv_[j] = this->temp_[this->current_index_];
this->back_ -= number;
retval = 1;
}
return retval;
}
template <typename CHAR_TYPE>
int
ACE_Arg_Shifter_T<CHAR_TYPE>::ignore_arg (int number)
{
int retval = 0;
// Keep unknowns at the head of the vector.
if (this->is_anything_left () >= number)
{
for (int i = 0;
i < number;
i++, this->current_index_++, this->front_++)
this->argv_[this->front_] = this->temp_[this->current_index_];
retval = 1;
this->argc_ += number;
}
return retval;
}
template <typename CHAR_TYPE>
int
ACE_Arg_Shifter_T<CHAR_TYPE>::is_anything_left (void) const
{
return this->total_size_ - this->current_index_;
}
template <typename CHAR_TYPE>
int
ACE_Arg_Shifter_T<CHAR_TYPE>::is_option_next (void) const
{
return this->is_anything_left () &&
this->temp_[this->current_index_][0] == '-';
}
template <typename CHAR_TYPE>
int
ACE_Arg_Shifter_T<CHAR_TYPE>::is_parameter_next (void) const
{
return this->is_anything_left ()
&& this->temp_[this->current_index_][0] != '-';
}
template <typename CHAR_TYPE>
int
ACE_Arg_Shifter_T<CHAR_TYPE>::num_ignored_args (void) const
{
return this->front_;
}
ACE_END_VERSIONED_NAMESPACE_DECL
#endif /* ACE_ATOMIC_OP_T_CPP */
|
