This class offers partial regular expression matching, as supported by the boost regex classes. More...

#include <wex/core/regex-part.h>

Public Types
enum class	match_t { NONE , ERRORS , PART , HISTORY , FULL }
	The match types. More...

Public Member Functions
	regex_part (const std::string &regex, boost::regex::flag_type flags=boost::regex::ECMAScript)
	Constructor.

const std::string &	error () const
	Returns the error (in case match_t::ERRORS).

match_t	match (char c)
	Regular expression match using a single char at a time, possibly continuing a previous match.

match_t	match_type () const
	Returns the match type.

const std::string &	regex () const
	Returns the regex.

void	reset ()
	Resets matching to start again.

const std::string &	text () const
	Returns the current text (all chars that matched).

Detailed Description

This class offers partial regular expression matching, as supported by the boost regex classes.

For example a regex: *+ Settings *+ and incomplete text '* Set' would not match a normal std::regex, this class matches all *, * , * Set, * Settings *, where the first 3 would return a match_t::PART, and the last a match_t::FULL.

Member Enumeration Documentation

◆ match_t

enum class wex::regex_part::match_t

strong

The match types.

Enumerator
NONE	the current text does not match at all, even partly
ERRORS	the regex part gives a regex error during parsing
PART	the current text matches part of regex part
HISTORY	the current text matches part of regex part, last char not
FULL	the current text matches all regex part

Constructor & Destructor Documentation

◆ regex_part()

wex::regex_part::regex_part	(	const std::string &	regex,
		boost::regex::flag_type	flags = boost::regex::ECMAScript )

inline

Constructor.

Parameters

regex	the regular expression string
flags	the regex flags

Member Function Documentation

◆ match()

wex::regex_part::match_t wex::regex_part::match ( char c )

inline

Regular expression match using a single char at a time, possibly continuing a previous match.

Returns the match_t:

PART: The resulting text from this and all previous chars do match
FULL: The text matches the complete regex
NONE: There is no match
ERRORS: There is a regex error, available using error() Non ascii chars are ignored.

Public Types