Projects : bitcoin : bitcoin_dumpblock_no_losers
| 1 | #ifndef JSON_SPIRIT_READ_STREAM |
| 2 | #define JSON_SPIRIT_READ_STREAM |
| 3 | |
| 4 | // Copyright John W. Wilkinson 2007 - 2009. |
| 5 | // Distributed under the MIT License, see accompanying file LICENSE.txt |
| 6 | |
| 7 | // json spirit version 4.03 |
| 8 | |
| 9 | #if defined(_MSC_VER) && (_MSC_VER >= 1020) |
| 10 | # pragma once |
| 11 | #endif |
| 12 | |
| 13 | #include "json_spirit_reader_template.h" |
| 14 | |
| 15 | namespace json_spirit |
| 16 | { |
| 17 | // these classes allows you to read multiple top level contiguous values from a stream, |
| 18 | // the normal stream read functions have a bug that prevent multiple top level values |
| 19 | // from being read unless they are separated by spaces |
| 20 | |
| 21 | template< class Istream_type, class Value_type > |
| 22 | class Stream_reader |
| 23 | { |
| 24 | public: |
| 25 | |
| 26 | Stream_reader( Istream_type& is ) |
| 27 | : iters_( is ) |
| 28 | { |
| 29 | } |
| 30 | |
| 31 | bool read_next( Value_type& value ) |
| 32 | { |
| 33 | return read_range( iters_.begin_, iters_.end_, value ); |
| 34 | } |
| 35 | |
| 36 | private: |
| 37 | |
| 38 | typedef Multi_pass_iters< Istream_type > Mp_iters; |
| 39 | |
| 40 | Mp_iters iters_; |
| 41 | }; |
| 42 | |
| 43 | template< class Istream_type, class Value_type > |
| 44 | class Stream_reader_thrower |
| 45 | { |
| 46 | public: |
| 47 | |
| 48 | Stream_reader_thrower( Istream_type& is ) |
| 49 | : iters_( is ) |
| 50 | , posn_begin_( iters_.begin_, iters_.end_ ) |
| 51 | , posn_end_( iters_.end_, iters_.end_ ) |
| 52 | { |
| 53 | } |
| 54 | |
| 55 | void read_next( Value_type& value ) |
| 56 | { |
| 57 | posn_begin_ = read_range_or_throw( posn_begin_, posn_end_, value ); |
| 58 | } |
| 59 | |
| 60 | private: |
| 61 | |
| 62 | typedef Multi_pass_iters< Istream_type > Mp_iters; |
| 63 | typedef spirit_namespace::position_iterator< typename Mp_iters::Mp_iter > Posn_iter_t; |
| 64 | |
| 65 | Mp_iters iters_; |
| 66 | Posn_iter_t posn_begin_, posn_end_; |
| 67 | }; |
| 68 | } |
| 69 | |
| 70 | #endif |