NAME¶
std::__detail::_Scanner< _CharT > -
SYNOPSIS¶
Inherits std::__detail::_ScannerBase.
Public Types¶
typedef const
std::ctype< _CharT >
_CtypeT
typedef
regex_constants::syntax_option_type _FlagT"
typedef const _CharT *
_IterT
typedef
std::basic_string< _CharT >
_StringT
enum
_TokenT {
_S_token_anychar,
_S_token_ord_char,
_S_token_oct_num,
_S_token_hex_num,
_S_token_backref,
_S_token_subexpr_begin,
_S_token_subexpr_no_group_begin,
_S_token_subexpr_lookahead_begin,
_S_token_subexpr_end,
_S_token_bracket_begin,
_S_token_bracket_neg_begin,
_S_token_bracket_end,
_S_token_interval_begin,
_S_token_interval_end,
_S_token_quoted_class,
_S_token_char_class_name,
_S_token_collsymbol,
_S_token_equiv_class_name,
_S_token_opt,
_S_token_or,
_S_token_closure0,
_S_token_closure1,
_S_token_ungreedy,
_S_token_line_begin,
_S_token_line_end,
_S_token_word_bound,
_S_token_comma,
_S_token_dup_count,
_S_token_eof,
_S_token_unknown }
Public Member Functions¶
_Scanner (_IterT __begin, _IterT __end,
_FlagT __flags,
std::locale __loc)
void
_M_advance ()
_TokenT _M_get_token () const
const
_StringT &
_M_get_value () const
Protected Types¶
enum
_StateT {
_S_state_normal,
_S_state_in_brace,
_S_state_in_bracket }
Protected Member Functions¶
const char *
_M_find_escape (char __c)
bool
_M_is_awk () const
bool
_M_is_basic () const
bool
_M_is_ecma () const
bool
_M_is_extended () const
bool
_M_is_grep () const
Protected Attributes¶
bool
_M_at_bracket_start
const
std::pair< char, char >
_M_awk_escape_tbl [11]
const char *
_M_basic_spec_char
const
std::pair< char, char >
_M_ecma_escape_tbl [8]
const char *
_M_ecma_spec_char
const
std::pair< char, char > *
_M_escape_tbl
const char *
_M_extended_spec_char
_FlagT _M_flags
const char *
_M_spec_char
_StateT
_M_state
_TokenT _M_token
const
std::pair< char,
_TokenT >
_M_token_tbl [9]
Detailed Description¶
template<typename _CharT>class std::__detail::_Scanner< _CharT >¶
Scans an input range for regex tokens.
The _Scanner class interprets the regular expression pattern in the input range
passed to its constructor as a sequence of parse tokens passed to the regular
expression compiler. The sequence of tokens provided depends on the flag
settings passed to the constructor: different regular expression grammars will
interpret the same input pattern in syntactically different ways.
Definition at line 201 of file regex_scanner.h.
Author¶
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