filters/TabToSpaces.php

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Converts tabs to spaces.

Example:

Or:


  
Author
Yannick Lecaillez  
Author
Hans Lellelid  
Package
phing.filters  
See
\BaseParamFilterReader  
Version
$Id$  

\TabToSpaces

Package: phing\filters

Converts tabs to spaces.

Example:

Or:


  
Parent(s)
\BaseParamFilterReader < \BaseFilterReader < \FilterReader < \Reader
See
\BaseParamFilterReader  
Author
Yannick Lecaillez  
Author
Hans Lellelid  
Copyright
� 2003 seasonfive. All rights reserved  
Version
$Id$  

Constants

Constantint  DEFAULT_TAB_LENGTH = 8

The default tab length.

int
Constantstring  TAB_LENGTH_KEY = "tablength"

Parameter name for the length of a tab.

string

Properties

Propertyprotected  $_parameters= 'array()'
inherited

The passed in parameter array.

Inherited from: \BaseParamFilterReader::$$_parameters
Default valuearray()Details
Type
n/a
Inherited_from
\BaseParamFilterReader::$$_parameters  
Propertyprotected\Reader  $in= ''
Details
Type
\Reader
Inherited_from
\FilterReader::$$in  
Inherited_from
\BaseFilterReader::$$in  
Inherited_from
\BaseParamFilterReader::$$in  
Propertyprotected  $initialized= 'false'
inherited

Have the parameters passed been interpreted?

Inherited from: \BaseFilterReader::$$initialized\BaseParamFilterReader::$$initialized
Default valuefalseDetails
Type
n/a
Inherited_from
\BaseFilterReader::$$initialized  
Inherited_from
\BaseParamFilterReader::$$initialized  
Propertyprotected  $project= 'null'
inherited

The Phing project this filter is part of.

Inherited from: \BaseFilterReader::$$project\BaseParamFilterReader::$$project
Default valuenullDetails
Type
n/a
Inherited_from
\BaseFilterReader::$$project  
Inherited_from
\BaseParamFilterReader::$$project  
Propertyprivateint  $tabLength= '8'

Tab length in this filter.

Default value8Details
Type
int

Methods

methodpublic__construct( \Reader $in = null ) : void
inherited

Constructor used by Phing's introspection mechanism.

Inherited from: \BaseFilterReader::__construct()\BaseParamFilterReader::__construct()

The original filter reader is only used for chaining purposes, never for filtering purposes (and indeed it would be useless for filtering purposes, as it has no real data to filter). ChainedReaderHelper uses this placeholder instance to create a chain of real filters.

Parameters
Name Type Description
$in \Reader
methodprivate_initialize( ) : void

Parses the parameters to set the tab length.

methodpublicchain( \Reader $reader ) : \Reader

Creates a new TabsToSpaces using the passed in Reader for instantiation.

Parameters
Name Type Description
$reader \Reader

A Reader object providing the underlying stream. Must not be null.

Returns
Type Description
\Reader A new filter based on this configuration, but filtering the specified reader
methodpublicclose( ) : void
Throws
Exception Description
\IOException if there is an error closing stream
methodpubliceof( ) : boolean
inherited

Returns whether the end of file has been reached with input stream.

Inherited from: \BaseFilterReader::eof()\BaseParamFilterReader::eof()
Returns
Type Description
boolean
methodpublicgetInitialized( ) : boolean
inherited

Returns the initialized status.

Inherited from: \BaseFilterReader::getInitialized()\BaseParamFilterReader::getInitialized()
Returns
Type Description
boolean whether or not the filter is initialized
methodpublicgetParameters( ) : void
inherited

Inherited from: \BaseParamFilterReader::getParameters()
methodpublicgetProject( ) : object
inherited

Returns the project this filter is part of.

Inherited from: \BaseFilterReader::getProject()\BaseParamFilterReader::getProject()
Returns
Type Description
object The project this filter is part of
methodpublicgetResource( ) : string
inherited

Returns the filename, url, etc. that is being read from.

Inherited from: \FilterReader::getResource()\BaseFilterReader::getResource()\BaseParamFilterReader::getResource()

This is critical for, e.g., ExpatParser's ability to know the filename that is throwing an ExpatParserException, etc.

Returns
Type Description
string
methodpublicgetTablength( ) : int

Returns the tab length.

Returns
Type Description
int The number of spaces used when converting a tab
methodpubliclog( string $msg, int $level = Project::MSG_INFO ) : void
inherited

Convenience method to support logging in filters.

Inherited from: \BaseFilterReader::log()\BaseParamFilterReader::log()
Parameters
Name Type Description
$msg string

Message to log.

$level int

Priority level.

methodpublicmark( ) : void
inherited

If supported, places a "marker" (like a bookmark) at current stream position.

Inherited from: \Reader::mark()\FilterReader::mark()\BaseFilterReader::mark()\BaseParamFilterReader::mark()

A subsequent call to reset() will move stream position back to last marker (if supported).

methodpublicmarkSupported( ) : boolean
Returns
Type Description
boolean
methodpublicread( \off $len = null ) : \the

Returns stream after converting tabs to the specified number of spaces.

FIXME: Clean up this function signature, as it a) params aren't being used and b) it doesn't make much sense.

Parameters
Name Type Description
$len \off

Offset at which to start storing characters.

Returns
Type Description
\the resulting stream, or -1 if the end of the resulting stream has been reached
Throws
Exception Description
\IOException If an I/O error occurs
Details
Exception
IOException if the underlying stream throws an IOException during reading  
methodpublicreadLine( ) : \the
inherited

Reads a line of text ending with '\n' (or until the end of the stream).

Inherited from: \BaseFilterReader::readLine()\BaseParamFilterReader::readLine()

The returned String retains the '\n'.

Returns
Type Description
\the line read, or <code>null</code> if the end of the stream has already been reached
Throws
Exception Description
\IOException if the underlying reader throws one during reading
methodpublicready( ) : boolean
Returns
Type Description
boolean
methodpublicreset( ) : void
inherited

Reset the current position in stream to beginning or last mark (if supported).

Inherited from: \FilterReader::reset()\BaseFilterReader::reset()\BaseParamFilterReader::reset()
methodpublicsetInitialized( boolean $initialized ) : void
inherited

Sets the initialized status.

Inherited from: \BaseFilterReader::setInitialized()\BaseParamFilterReader::setInitialized()
Parameters
Name Type Description
$initialized boolean

Whether or not the filter is initialized.

methodpublicsetParameters(  $parameters ) : void
inherited

Inherited from: \BaseParamFilterReader::setParameters()
Parameters
Name Type Description
$parameters
methodpublicsetProject( object $project ) : void
inherited

Sets the project to work with.

Inherited from: \BaseFilterReader::setProject()\BaseParamFilterReader::setProject()
Parameters
Name Type Description
$project object

The project this filter is part of. Should not be null.

methodpublicsetReader(  $in ) : void
Parameters
Name Type Description
$in
methodpublicsetTablength( int $tabLength ) : void

Sets the tab length.

Parameters
Name Type Description
$tabLength int

The number of spaces to be used when converting a tab.

methodpublicskip( int $n ) : void
inherited

Move stream position relative to current pos.

Inherited from: \FilterReader::skip()\BaseFilterReader::skip()\BaseParamFilterReader::skip()
Parameters
Name Type Description
$n int
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