/usr/include/OpenSP/Options.cxx is in libosp-dev 1.5.2-10.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | // Derived from comp.sources.unix/volume3/att_getopt.
#ifndef Options_DEF_INCLUDED
#define Options_DEF_INCLUDED 1
#ifndef OPTION_CHAR
#define OPTION_CHAR T('-')
#endif
#ifdef SP_NAMESPACE
namespace SP_NAMESPACE {
#endif
template<class T>
Options<T>::Options(int argc, T *const *argv, const Vector<LongOption<T> > &l)
: argc_(argc), argv_(argv), ind_(1), sp_(1), opts_(l), optInd_(-1)
{
}
template<class T>
bool Options<T>::search(T c)
{
for (optInd_ = 0; optInd_ < opts_.size(); optInd_++)
if (opts_[optInd_].key == c)
return 1;
optInd_ = -1;
return 0;
}
template<class T>
bool Options<T>::searchLong(const T *arg)
{
/* return true if a unique match is found
set sp_ to the char ending the option name ('\0' or '=')
set optInd_ to the index of the first match
*/
optInd_ = -1;
for (size_t i = 0; i < opts_.size(); i++)
if (opts_[i].name) {
const T *t;
for (sp_ = 2, t = opts_[i].name; ; sp_++, t++) {
if ((arg[sp_] == T('\0')) || (arg[sp_] == T('='))) {
if (optInd_ >= 0)
return 0; // ambiguous
else {
optInd_ = i;
if (*t == T('\0'))
return 1; // exact match
else
break; // match, continue with next option
}
}
else if (arg[sp_] != *t)
break; // no match, continue with next option
}
}
return (optInd_ >= 0);
}
template<class T>
bool Options<T>::get(T &c)
{
if (sp_ == 1) {
if (ind_ >= argc_)
return false;
if ((argv_[ind_][0] != OPTION_CHAR) || argv_[ind_][1] == 0)
return false;
if (argv_[ind_][0] == OPTION_CHAR && argv_[ind_][1] == OPTION_CHAR) {
if (argv_[ind_][2] == 0) {
ind_++;
return false;
}
else {
opt_ = 0; // this marks a long option
if (searchLong(argv_[ind_])) {
c = opts_[optInd_].value;
if (opts_[optInd_].hasArgument) {
if (argv_[ind_][sp_] == T('='))
arg_ = &argv_[ind_][sp_ + 1];
else if (ind_ + 1 < argc_)
arg_ = argv_[++ind_];
else
c = T('?'); // missing argument
}
else if (argv_[ind_][sp_] == T('='))
c = T('='); // erroneous argument
}
else if (optInd_ >= 0)
c = T('-'); // ambiguous option
else
c = T('?'); // unknown option
ind_++;
sp_ = 1;
return true;
}
}
}
opt_ = c = argv_[ind_][sp_];
if (!search(c)) {
if (argv_[ind_][++sp_] == 0) {
ind_++;
sp_ = 1;
}
c = T('?');
return true;
}
if (optInd_ >= 0 && opts_[optInd_].hasArgument) {
if (argv_[ind_][sp_ + 1] != 0)
arg_ = &argv_[ind_++][sp_ + 1];
else if (++ind_ >= argc_) {
sp_ = 1;
c = T('?');
return true;
}
else
arg_ = argv_[ind_++];
sp_ = 1;
}
else {
if (argv_[ind_][++sp_] == 0) {
sp_ = 1;
ind_++;
}
arg_ = 0;
}
return true;
}
#ifdef SP_NAMESPACE
}
#endif
#endif /* not Options_DEF_INCLUDED */
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