slice parser More...
#include <slice_rule.hpp>
Inheritance diagram for pni::io::slice_rule< ITERT >:
Collaboration diagram for pni::io::slice_rule< ITERT >:
Public Member Functions | |
| slice_rule () | |
| default constructor More... | |
Data Fields | |
| boost::spirit::qi::rule< ITERT, boost::spirit::qi::locals < size_t, size_t, size_t > , pni::core::slice() > | slice_ |
| rule to parse a slice string More... | |
Detailed Description
template<typename ITERT>
struct pni::io::slice_rule< ITERT >
This parser reads slice objects from a string. A slice is represented by three numbers: the start index, the last index, and a stride. In string representation these three values are written as
start:stop:stride
where a : is used as separator between the numbers. There are several flavors of strings that can be used to denote a slice
start- here stop is assumed to be start+1 and stride=1.start:stop- where stride is assumed to be 1:stop - where start=0 and stride = 1:stop:stride - where start is assumed to be 0
This parser is capable of managing all these variations. It can be used like this
typedef string::iterator iterator_t;
typedef slice_parser<iterator_t> parser_t;
string slice_str = "1:100:2";
slice s;
parser_t parser; //generate a parser instance
parse(slice_str.begin(),slice_str.end(),parser,s);
- Template Parameters
-
ITERT iterator type for the parser
Constructor & Destructor Documentation
template<typename ITERT >
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inline |
Field Documentation
template<typename ITERT >
| boost::spirit::qi::rule<ITERT, boost::spirit::qi::locals<size_t,size_t,size_t>, pni::core::slice() > pni::io::slice_rule< ITERT >::slice_ |
The documentation for this struct was generated from the following file:
