8 #ifndef INCLUDED_ORCUS_PARSER_BASE_HPP
9 #define INCLUDED_ORCUS_PARSER_BASE_HPP
11 #include "orcus/env.hpp"
12 #include "orcus/exception.hpp"
27 std::ptrdiff_t m_offset;
29 parse_error(
const std::string& msg, std::ptrdiff_t offset);
30 parse_error(
const std::string& cls,
const std::string& msg, std::ptrdiff_t offset);
32 static std::string build_message(
const char* msg_before,
char c,
const char* msg_after);
33 static std::string build_message(
const char* msg_before,
const char* p,
size_t n,
const char* msg_after);
36 std::ptrdiff_t offset()
const;
42 const char*
const mp_begin;
45 const bool m_transient_stream;
48 parser_base(
const char* p,
size_t n,
bool transient_stream);
50 bool transient_stream()
const {
return m_transient_stream; }
54 assert(mp_char <= mp_end);
55 return mp_char != mp_end;
60 assert((mp_char+1) <= mp_end);
61 return (mp_char+1) != mp_end;
64 void next(
size_t inc=1) { mp_char += inc; }
66 void prev(
size_t dec=1);
68 char cur_char()
const {
return *mp_char; }
70 char next_char()
const;
72 void skip(
const char* chars_to_skip,
size_t n_chars_to_skip);
77 void skip_space_and_control();
89 bool parse_expected(
const char* expected,
size_t n_expected);
97 double parse_double();
107 size_t remaining_size()
const;
117 return std::distance(mp_char, mp_end);
125 std::ptrdiff_t offset()
const;