Puma::RegComp Class Reference

#include <Puma/RegComp.h>

Description

Regular expression matching.

This class compiles the expression when a string is matched for the first time. In case of an error, an error message can be printed on an error stream.

Public Member Functions
	RegComp (const std::string &expr)
	Constructor.
	RegComp (const RegComp &copy)
	Copy-constructor.
RegComp &	operator= (const RegComp &copy)
	Assign a regular expression.
bool	compile (const std::string &expr)
	Compile the regular expression.
bool	match (const std::string &str)
	Match against a string.
void	comperror (ErrorStream &err) const
	Print a regular expression compilation error message on the given error stream.
bool	error () const
	Check whether there was an error compiling the regular expression.

Constructor & Destructor Documentation

RegComp() [1/2]

Puma::RegComp::RegComp

(

const std::string &

expr

)

Constructor.

Parameters

expr	The regular expression.

RegComp() [2/2]

Puma::RegComp::RegComp

(

const RegComp &

copy

)

Copy-constructor.

Parameters

copy	The regular expression to copy.

Member Function Documentation

comperror()

void Puma::RegComp::comperror

(

ErrorStream &

err

)

const

Print a regular expression compilation error message on the given error stream.

To be called when compile() fails.

Parameters

err	Error stream on which to print the error message.

compile()

bool Puma::RegComp::compile

(

const std::string &

expr

)

Compile the regular expression.

Parameters

expr	The regular expression.

Returns

False in case of an errors. Use comperror() to print the error message.

error()

bool Puma::RegComp::error ( ) const

inline

Check whether there was an error compiling the regular expression.

Returns

True in case of an error. Use comperror to print it.

match()

bool Puma::RegComp::match

(

const std::string &

str

)

Match against a string.

Parameters

str	String to be matched.

Returns

True if the regular expression matches the string.

operator=()

RegComp & Puma::RegComp::operator=

(

const RegComp &

copy

)

Assign a regular expression.

Parameters

copy	The regular expression.

Returns

A reference to this object.