Manpages - std___detail__Scanner.3

Table of Contents

NAME

std::__detail::_Scanner< _CharT > - Scans an input range for regex tokens.

SYNOPSIS


#include <regex_scanner.h>

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 : unsigned { _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_line_begin, _S_token_line_end, _S_token_word_bound, _S_token_comma, _S_token_dup_count, _S_token_eof, _S_token_bracket_dash, _S_token_unknown }
Token types returned from the scanner.

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 210 of file regex_scanner.h.

Member Typedef Documentation

template<typename _CharT > typedef const *std::ctype*<_CharT>

std::__detail::_Scanner*< _CharT >::*_CtypeT Definition at line 217 of file regex_scanner.h.

template<typename _CharT > typedef

regex_constants::syntax_option_type std::__detail::_Scanner*< _CharT >::*_FlagT Definition at line 216 of file regex_scanner.h.

template<typename _CharT > typedef const _CharT*

std::__detail::_Scanner*< _CharT >::_IterT Definition at line *214 of file regex_scanner.h.

template<typename _CharT > typedef *std::basic_string*<_CharT>

std::__detail::_Scanner*< _CharT >::*_StringT Definition at line 215 of file regex_scanner.h.

Member Enumeration Documentation

enum std::__detail::_ScannerBase::_StateT= [protected]=,

= [inherited]= Definition at line 83 of file regex_scanner.h.

enum std::__detail::_ScannerBase::_TokenT : unsigned= [inherited]=

Token types returned from the scanner.

Definition at line 46 of file regex_scanner.h.

Constructor & Destructor Documentation

template<typename _CharT > *std::__detail::_Scanner*< _CharT

>::*_Scanner* (typename _Scanner*< _CharT >::_IterT __begin, typename *_Scanner*< _CharT >::_IterT __end, *_FlagT __flags, std::locale __loc) Definition at line 56 of file regex_scanner.tcc.

Member Function Documentation

template<typename _CharT > void *std::__detail::_Scanner*< _CharT

>::_M_advance Definition at line 70 of file regex_scanner.tcc.

const char * std::__detail::_ScannerBase::_M_find_escape (char

__c)= [inline]=, = [protected]=, = [inherited]= Definition at line 115 of file regex_scanner.h.

template<typename _CharT > _TokenT *std::__detail::_Scanner*< _CharT

>::_M_get_token () const= [inline]= Definition at line 226 of file regex_scanner.h.

template<typename _CharT > const _StringT &

std::__detail::_Scanner*< _CharT >::_M_get_value () const= [inline]= Definition at line *230 of file regex_scanner.h.

bool std::__detail::_ScannerBase::_M_is_awk () const= [inline]=,

= [protected]=, = [inherited]= Definition at line 145 of file regex_scanner.h.

bool std::__detail::_ScannerBase::_M_is_basic () const= [inline]=,

= [protected]=, = [inherited]= Definition at line 129 of file regex_scanner.h.

bool std::__detail::_ScannerBase::_M_is_ecma () const= [inline]=,

= [protected]=, = [inherited]= Definition at line 125 of file regex_scanner.h.

bool std::__detail::_ScannerBase::_M_is_extended () const= [inline]=,

= [protected]=, = [inherited]= Definition at line 133 of file regex_scanner.h.

bool std::__detail::_ScannerBase::_M_is_grep () const= [inline]=,

= [protected]=, = [inherited]= Definition at line 141 of file regex_scanner.h.

Member Data Documentation

bool std::__detail::_ScannerBase::_M_at_bracket_start= [protected]=,

= [inherited]= Definition at line 196 of file regex_scanner.h.

const *std::pair*<char, char>

std::__detail::_ScannerBase::_M_awk_escape_tbl[11]= [protected]=, = [inherited]= Definition at line 173 of file regex_scanner.h.

const char*

std::__detail::_ScannerBase::_M_basic_spec_char= [protected]=, = [inherited]= Definition at line 188 of file regex_scanner.h.

const *std::pair*<char, char>

std::__detail::_ScannerBase::_M_ecma_escape_tbl[8]= [protected]=, = [inherited]= Definition at line 162 of file regex_scanner.h.

const char*

std::__detail::_ScannerBase::_M_ecma_spec_char= [protected]=, = [inherited]= Definition at line 187 of file regex_scanner.h.

const std::pair*<char, char>

std::__detail::_ScannerBase::_M_escape_tbl= [protected]=, = [inherited]= Definition at line 194 of file regex_scanner.h.

const char*

std::__detail::_ScannerBase::_M_extended_spec_char= [protected]=, = [inherited]= Definition at line 189 of file regex_scanner.h.

_FlagT std::__detail::_ScannerBase::_M_flags= [protected]=,

= [inherited]= Definition at line 192 of file regex_scanner.h.

const char* std::__detail::_ScannerBase::_M_spec_char= [protected]=,

= [inherited]= Definition at line 195 of file regex_scanner.h.

_StateT std::__detail::_ScannerBase::_M_state= [protected]=,

= [inherited]= Definition at line 191 of file regex_scanner.h.

_TokenT std::__detail::_ScannerBase::_M_token= [protected]=,

= [inherited]= Definition at line 193 of file regex_scanner.h.

const *std::pair*<char, _TokenT>

std::__detail::_ScannerBase::_M_token_tbl[9]= [protected]=, = [inherited]= Definition at line 150 of file regex_scanner.h.

Author

Generated automatically by Doxygen for libstdc++ from the source code.

Author: dt

Created: 2022-02-20 Sun 19:45