Filter Struct Reference

A (possibly empty) criteria for deciding to execute a line in a sed script. The criteria include. More...

#include <muSED.h>

Collaboration diagram for Filter:

Public Types
enum	type { none, regex, lineNumber, lastLine }
Public Member Functions
virtual std::string	debugString () const
	Filter ()
Filter &	operator= (Filter const &rhs)
template<class StringIterator >
bool	parse (StringIterator &first, StringIterator const &last)
	parse a string into *this.
bool	passes (size_t lineNo, bool isLast, std::string const &line)
	filter. If the filter type is none, all of them do.
Public Attributes
size_t	line_
SimpleRegex	regex_
type	type_

Detailed Description

A (possibly empty) criteria for deciding to execute a line in a sed script. The criteria include.

does the current line number match the script requirement
is the current line the last line of the file
does the current line match a regular expression

The filter can be any of the above, or none.

Note:: Filter logic inversion is handled by FilterableStatement, note here

Definition at line 133 of file muSED.h.

Member Enumeration Documentation

enum type

Enumerator:

none
regex
lineNumber
lastLine

Definition at line 150 of file muSED.h.

Constructor & Destructor Documentation

Filter ( )

Definition at line 159 of file muSED.h.

Member Function Documentation

std::string debugString ( ) const [virtual]

Definition at line 96 of file muSED.cxx.

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Filter& operator= ( Filter const & rhs )

Definition at line 165 of file muSED.h.

bool parse	(	StringIterator &	first,
		StringIterator const &	last
	)

parse a string into *this.

Parameters:

`[in,out]`	first	Pointer to the next input character;
`[in]`	last	Pointer past the end of valid input

Returns:: true to indicate the successfull parsing of a filter.

Note that returning false only means that there was no filter, not that an error occurred -- although it might mean that!

Leading blanks will be skipped. If an actual error occurrs, The first non-blank character will be the location where this function leaves 'first', which is an in/out parameter.

Definition at line 197 of file muSED.h.

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bool passes	(	size_t	lineNo,
		bool	isLast,
		std::string const &	line
	)

filter. If the filter type is none, all of them do.

Parameters:

`[in]`	lineNo	The number of the current line of text
`[in]`	isLast	A boolean indicating that this line is the last line of the input stream
`[in]`	line	The text of the current line