Go to the documentation of this file.00001 #ifndef ACE_ARG_SHIFTER_T_CPP
00002 #define ACE_ARG_SHIFTER_T_CPP
00003
00004 #include "ace/Arg_Shifter.h"
00005 #include "ace/OS_NS_string.h"
00006 #include "ace/OS_NS_strings.h"
00007 #include "ace/OS_Errno.h"
00008 #include "ace/OS_Memory.h"
00009
00010 ACE_RCSID (ace,
00011 Arg_Shifter,
00012 "$Id: Arg_Shifter.cpp 83749 2008-11-14 18:39:10Z johnnyw $")
00013
00014
00015 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
00016
00017 template <typename CHAR_TYPE>
00018 ACE_Arg_Shifter_T<CHAR_TYPE>::ACE_Arg_Shifter_T (int& argc,
00019 const CHAR_TYPE** argv,
00020 const CHAR_TYPE** temp)
00021 : argc_ (argc),
00022 total_size_ (argc),
00023 temp_ (temp),
00024 argv_ (argv),
00025 current_index_ (0),
00026 back_ (argc - 1),
00027 front_ (0)
00028 {
00029 this->init ();
00030 }
00031
00032 template <typename CHAR_TYPE>
00033 ACE_Arg_Shifter_T<CHAR_TYPE>::ACE_Arg_Shifter_T (int& argc,
00034 CHAR_TYPE** argv,
00035 CHAR_TYPE** temp)
00036 : argc_ (argc),
00037 total_size_ (argc),
00038 temp_ ((const CHAR_TYPE **) temp),
00039 argv_ ((const CHAR_TYPE **) argv),
00040 current_index_ (0),
00041 back_ (argc - 1),
00042 front_ (0)
00043 {
00044 this->init ();
00045 }
00046
00047 template <typename CHAR_TYPE>
00048 void
00049 ACE_Arg_Shifter_T<CHAR_TYPE>::init (void)
00050 {
00051
00052 if (this->temp_ == 0)
00053 ACE_NEW (this->temp_,
00054 const CHAR_TYPE *[this->total_size_]);
00055
00056 if (this->temp_ != 0)
00057 {
00058
00059 this->argc_ = 0;
00060 for (int i = 0; i < this->total_size_; i++)
00061 {
00062 this->temp_[i] = this->argv_[i];
00063 this->argv_[i] = 0;
00064 }
00065 }
00066 else
00067 {
00068
00069 this->current_index_ = this->argc_;
00070 this->front_ = this->argc_;
00071 }
00072 }
00073
00074 template <typename CHAR_TYPE>
00075 ACE_Arg_Shifter_T<CHAR_TYPE>::~ACE_Arg_Shifter_T (void)
00076 {
00077
00078 delete [] temp_;
00079 }
00080
00081 template <typename CHAR_TYPE>
00082 const CHAR_TYPE *
00083 ACE_Arg_Shifter_T<CHAR_TYPE>::get_current (void) const
00084 {
00085 const CHAR_TYPE * retval = 0;
00086
00087 if (this->is_anything_left ())
00088 retval = this->temp_[current_index_];
00089
00090 return retval;
00091 }
00092
00093 template <typename CHAR_TYPE>
00094 const CHAR_TYPE *
00095 ACE_Arg_Shifter_T<CHAR_TYPE>::get_the_parameter (const CHAR_TYPE *flag)
00096 {
00097
00098
00099
00100
00101 if (!this->is_anything_left())
00102 return 0;
00103
00104
00105 int const offset = this->cur_arg_strncasecmp (flag);
00106 if (offset == -1)
00107 return 0;
00108
00109 if (offset == 0)
00110 {
00111 this->consume_arg ();
00112
00113 if (!this->is_parameter_next())
00114 {
00115 return 0;
00116 }
00117 }
00118
00119 return this->temp_[current_index_] + offset;
00120 }
00121
00122 template <typename CHAR_TYPE>
00123 int
00124 ACE_Arg_Shifter_T<CHAR_TYPE>::cur_arg_strncasecmp (const CHAR_TYPE *flag)
00125 {
00126
00127 if (this->is_anything_left())
00128 {
00129 size_t const flag_length = ACE_OS::strlen (flag);
00130
00131
00132 if (ACE_OS::strncasecmp(this->temp_[current_index_],
00133 flag,
00134 flag_length) == 0)
00135 {
00136 if (ACE_OS::strlen(temp_[current_index_]) == flag_length)
00137 {
00138
00139 return 0;
00140 }
00141 else
00142 {
00143
00144 size_t const remaining = ACE_OS::strspn
00145 (this->temp_[current_index_] + flag_length,
00146 ACE_TEXT (" ")) + flag_length;
00147 return static_cast<int> (remaining);
00148 }
00149 }
00150 }
00151
00152 return -1;
00153 }
00154
00155 template <typename CHAR_TYPE>
00156 int
00157 ACE_Arg_Shifter_T<CHAR_TYPE>::consume_arg (int number)
00158 {
00159 int retval = 0;
00160
00161
00162 if (this->is_anything_left() >= number)
00163 {
00164 for (int i = 0, j = this->back_ - (number - 1);
00165 i < number;
00166 ++i, ++j, ++this->current_index_)
00167 this->argv_[j] = this->temp_[this->current_index_];
00168
00169 this->back_ -= number;
00170 retval = 1;
00171 }
00172
00173 return retval;
00174 }
00175
00176 template <typename CHAR_TYPE>
00177 int
00178 ACE_Arg_Shifter_T<CHAR_TYPE>::ignore_arg (int number)
00179 {
00180 int retval = 0;
00181
00182
00183 if (this->is_anything_left () >= number)
00184 {
00185 for (int i = 0;
00186 i < number;
00187 i++, this->current_index_++, this->front_++)
00188 this->argv_[this->front_] = this->temp_[this->current_index_];
00189
00190 retval = 1;
00191 this->argc_ += number;
00192 }
00193
00194 return retval;
00195 }
00196
00197 template <typename CHAR_TYPE>
00198 int
00199 ACE_Arg_Shifter_T<CHAR_TYPE>::is_anything_left (void) const
00200 {
00201 return this->total_size_ - this->current_index_;
00202 }
00203
00204 template <typename CHAR_TYPE>
00205 int
00206 ACE_Arg_Shifter_T<CHAR_TYPE>::is_option_next (void) const
00207 {
00208 return this->is_anything_left () &&
00209 this->temp_[this->current_index_][0] == '-';
00210 }
00211
00212 template <typename CHAR_TYPE>
00213 int
00214 ACE_Arg_Shifter_T<CHAR_TYPE>::is_parameter_next (void) const
00215 {
00216 return this->is_anything_left ()
00217 && this->temp_[this->current_index_][0] != '-';
00218 }
00219
00220 template <typename CHAR_TYPE>
00221 int
00222 ACE_Arg_Shifter_T<CHAR_TYPE>::num_ignored_args (void) const
00223 {
00224 return this->front_;
00225 }
00226
00227 ACE_END_VERSIONED_NAMESPACE_DECL
00228
00229 #endif