wex::regex Class Reference

This class offers regular expression matching. More...

#include <wex/core/regex.h>

Classes
class	data
	This class contains the regex data. More...

Public Types
typedef std::vector< std::string >	match_t
	Type that specifies the matches.
typedef std::function< void(const match_t &)	function_t)
	Callback type.
typedef std::vector< std::string >	regex_v_t
	Type that specifies a vector with regular expressions.
typedef std::pair< std::string, function_t >	regex_c_t
	Type that specifies pair of regular expression and callback.
typedef std::vector< regex_c_t >	regex_v_c_t
	Type that specifies a vector with regular expressions and callbacks.

Public Member Functions
	regex (const data &)
	Constructor, provide regular expression data.
	regex (const std::string &regex, std::regex::flag_type flags=std::regex::ECMAScript)
	Constructor, provide regular expression string and regex flags.
	regex (const std::string &regex, function_t f, std::regex::flag_type flags=std::regex::ECMAScript)
	Constructor, provide regular expression string, callback and regex flags.
	regex (const regex_v_t &regex, std::regex::flag_type flags=std::regex::ECMAScript)
	Constructor, provide vector with regular expressions and regex flags.
	regex (const regex_v_c_t &regex, std::regex::flag_type flags=std::regex::ECMAScript)
	Constructor, provide vector with regular expressions, callbacks and regex flags.
const std::string	operator[] (size_t pos) const
	Returns requested submatch element.
const std::string	back () const
	Returns the last (sub)match.
bool	empty () const
	Returns true if matches is empty.
int	match (const std::string &text)
	Regular expression match.
const data	match_data () const
	Returns the data element that matched.
int	match_no () const
	Returns the data regex index that matched, or -1 if no match was found.
bool	replace (std::string &text, const std::string &replacement, std::regex_constants::match_flag_type=std::regex_constants::format_sed) const
	After match or search, replace text with replacement.
int	search (const std::string &text)
	Regular expression search.
size_t	size () const
	Returns number of submatches.

Detailed Description

This class offers regular expression matching.

Member Function Documentation

back()

const std::string wex::regex::back

(

)

const

Returns the last (sub)match.

Returns empty string if no matches present.

match()

int wex::regex::match

(

const std::string &

text

)

Regular expression match.

Returns:

• -1: if text does not match or there is an error
• 0: if text matches, but no submatches present.
• >0: it fills submatches, and returns number of submatches.

operator[]()

const std::string wex::regex::operator[]

(

size_t

pos

)

const

Returns requested submatch element.

Returns empty string if pos beyond index.

replace()

bool wex::regex::replace	(	std::string &	text,
		const std::string &	replacement,
		std::regex_constants::match_flag_type	= std::regex_constants::format_sed ) const

After match or search, replace text with replacement.

Returns true if the regex iterator is available, because of successful match or search.

search()

int wex::regex::search

(

const std::string &

text

)

Regular expression search.

Returns:

• -1: if text does not match or there is an error
• 0: if text matches, but no submatches present.
• >0: it fills submatches, and returns number of submatches.