+++ /dev/null
-/*
- Copyright (c) 2009 KJK::Hyperion
-
- Permission is hereby granted, free of charge, to any person obtaining a
- copy of this software and associated documentation files (the "Software"),
- to deal in the Software without restriction, including without limitation
- the rights to use, copy, modify, merge, publish, distribute, sublicense,
- and/or sell copies of the Software, and to permit persons to whom the
- Software is furnished to do so, subject to the following conditions:
-
- The above copyright notice and this permission notice shall be included in
- all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- DEALINGS IN THE SOFTWARE.
-*/
-
-#ifndef KJK_ARGV_PARSER_H_
-#define KJK_ARGV_PARSER_H_
-
-#include <iterator>
-#include <kjk/null_output_iterator.h>
-
-namespace kjk
-{
- namespace details
- {
- template<class Traits>
- bool is_separator(typename Traits::int_type c)
- {
- return Traits::eq_int_type(c, ' ') || Traits::eq_int_type(c, '\t');
- }
- }
-
- template<class Elem, class Traits, class InIter, class OutIter>
- InIter copy_argument(InIter cur, InIter end, OutIter arg)
- {
- typename Traits::int_type c;
- bool quoting = false;
-
- while(cur != end)
- {
- c = Traits::to_int_type(*cur);
-
- if(!details::is_separator<Traits>(c))
- break;
-
- ++ cur;
- }
-
- while(cur != end)
- {
- typedef typename std::iterator_traits<InIter>::difference_type difference_type;
- difference_type backslashes(0);
-
- do
- {
- c = Traits::to_int_type(*cur);
- ++ cur;
-
- if(Traits::eq_int_type(c, '\\'))
- ++ backslashes;
- else
- break;
- }
- while(cur != end);
-
- if(Traits::eq_int_type(c, '"'))
- {
- // c == '"'
-
- if((backslashes % 2) == 0)
- {
- // 2N backslashes + "" in quote = N backslashes, literal "
- if(quoting && cur != end && Traits::eq_int_type(Traits::to_int_type(*cur), '"'))
- {
- c = '"';
- ++ cur;
- }
- // 2N backslashes + " = N backslashes, toggle quoting
- else
- {
- quoting = !quoting;
- c = Traits::eof();
- }
-
- }
- // 2N+1 backslashes + " = N backslashes, literal "
-
- backslashes /= 2;
- }
-
- // Flush backslashes
- for(difference_type i = 0; i < backslashes; ++ i)
- *arg ++ = Traits::to_char_type('\\');
-
- // Handle current character, unless it was a special quote
- if(c != Traits::eof())
- {
- if(details::is_separator<Traits>(c) && !quoting)
- break;
- else
- *arg ++ = Traits::to_char_type(c);
- }
- }
-
- while(cur != end)
- {
- c = Traits::to_int_type(*cur);
-
- if(!details::is_separator<Traits>(c))
- break;
-
- ++ cur;
- }
-
- return cur;
- }
-
- template<class InIter, class OutIter>
- InIter copy_argument(InIter cur, InIter end, OutIter arg)
- {
- return copy_argument
- <
- typename std::iterator_traits<InIter>::value_type,
- typename std::char_traits<typename std::iterator_traits<InIter>::value_type>,
- InIter,
- OutIter
- >
- (cur, end, arg);
- }
-
- template<class Elem, class Traits, class InIter>
- InIter skip_argument(InIter cur, InIter end)
- {
- return copy_argument(cur, end, null_output_iterator<Elem>());
- }
-
- template<class InIter>
- InIter skip_argument(InIter cur, InIter end)
- {
- return copy_argument
- <
- typename std::iterator_traits<InIter>::value_type,
- typename std::char_traits<typename std::iterator_traits<InIter>::value_type>,
- InIter
- >
- (cur, end, null_output_iterator<typename std::iterator_traits<InIter>::value_type>());
- }
-}
-
-#endif
-
-// EOF
projects / reactos.git / blobdiff