filters/ReplaceTokens.php
\ReplaceTokens
Replaces tokens in the original input with user-supplied values.
Example:
;
Or:
- Implements
- \ChainableReader
- Parent(s)
- \BaseParamFilterReader < \BaseFilterReader < \FilterReader < \Reader
- See
- \BaseParamFilterReader
- Access
- public
- Author
- Yannick Lecaillez
- Author
- hans lellelid, hans@velum.net
- Copyright
- © 2003 seasonfive. All rights reserved
- Version
- $Revision: 1039 $ $Date: 2011-02-20 20:19:21 +0100 (Sun, 20 Feb 2011) $
Constants
Properties

array
$_alltokens= 'null'
Array holding all tokens given directly to the Filter and those passed via a TokenSource.
nullDetails- Type
- array

string
$_beginToken= '"@"'
Character marking the beginning of a token.
"@"Details- Type
- string

string
$_queuedData= 'null'
[Deprecated] Data that must be read from, if not null.
nullDetails- Type
- string

array
$_tokens= 'array()'
Array to hold the replacee-replacer pairs (String to String).
array()Details- Type
- array

array
$_tokensources= 'array()'
Array to hold the token sources that make tokens from different sources available
array()Details- Type
- array

\Reader
$in= ''
- Type
- \Reader
- Inherited_from
- \FilterReader::$in

$initialized= 'false'
Have the parameters passed been interpreted?
Inherited from: \BaseFilterReader::$initializedMethods

__construct(
\Reader $in
=
null
)
:
voidConstructor used by Phing's introspection mechanism.
Inherited from: \BaseFilterReader::__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.
| Name | Type | Description |
|---|---|---|
| $in | \Reader |

_initialize(
)
:
voidInitializes tokens and loads the replacee-replacer hashtable.
This method is only called when this filter is used through
a

chain(
object $reader
)
:
objectCreates a new ReplaceTokens using the passed in Reader for instantiation.
| Name | Type | Description |
|---|---|---|
| $reader | object | A Reader object providing the underlying stream. Must not be |
| Type | Description |
|---|---|
| object | A new filter based on this configuration, but filtering the specified reader |

createToken(
)
:
objectAdds a token element to the map of tokens to replace.
| Type | Description |
|---|---|
| object | The token added to the map of replacements. Must not be <code>null</code>. |

createTokensource(
)
:
objectAdds a token source to the sources of this filter.
| Type | Description |
|---|---|
| object | A Reference to the source just added. |

eof(
)
:
booleanReturns whether the end of file has been reached with input stream.
Inherited from: \BaseFilterReader::eof()| Type | Description |
|---|---|
| boolean |

getBeginToken(
)
:
stringReturns the "begin token" character.
| Type | Description |
|---|---|
| string | The character used to denote the beginning of a token. |

getEndToken(
)
:
\theReturns the "end token" character.
| Type | Description |
|---|---|
| \the | character used to denote the beginning of a token |

getInitialized(
)
:
boolean
| Type | Description |
|---|---|
| boolean | whether or not the filter is initialized |

getProject(
)
:
objectReturns the project this filter is part of.
Inherited from: \BaseFilterReader::getProject()| Type | Description |
|---|---|
| object | The project this filter is part of |

getResource(
)
:
stringReturns the filename, url, etc. that is being read from.
Inherited from: \FilterReader::getResource()This is critical for, e.g., ExpatParser's ability to know the filename that is throwing an ExpatParserException, etc.
| Type | Description |
|---|---|
| string |

getTokens(
)
:
arrayReturns the map of tokens which will be replaced.
; used by ReplaceTokens::chain()
| Type | Description |
|---|---|
| array | A map (String->String) of token keys to replacement values. |

getTokensources(
)
:
arrayReturns the token sources used by this filter; used by ReplaceTokens::chain()
| Type | Description |
|---|---|
| array |

log(
string $msg, int $level
=
Project::MSG_INFO
)
:
void
| Name | Type | Description |
|---|---|---|
| $msg | string | Message to log. |
| $level | int | Priority level. |

mark(
)
:
voidIf supported, places a "marker" (like a bookmark) at current stream position.
Inherited from: \Reader::mark()A subsequent call to reset() will move stream position back to last marker (if supported).

read(
\off $len
=
null
)
:
mixedReturns stream with tokens having been replaced with appropriate values.
If a replacement value is not found for a token, the token is left in the stream.
| Name | Type | Description |
|---|---|---|
| $len | \off | Offset at which to start storing characters. |
| Type | Description |
|---|---|
| mixed | filtered stream, -1 on EOF. |
| Exception | Description |
|---|---|
| \IOException | If an I/O error occurs |

readLine(
)
:
\theReads a line of text ending with '\n' (or until the end of the stream).
Inherited from: \BaseFilterReader::readLine()The returned String retains the '\n'.
| Type | Description |
|---|---|
| \the | line read, or <code>null</code> if the end of the stream has already been reached |
| Exception | Description |
|---|---|
| \IOException | if the underlying reader throws one during reading |

replaceTokenCallback(
array $matches
)
:
stringPerforms lookup on key and returns appropriate replacement string.
| Name | Type | Description |
|---|---|---|
| $matches | array | Array of 1 el containing key to search for. |
| Type | Description |
|---|---|
| string | Text with which to replace key or value of key if none is found. |
- Access
- private

reset(
)
:
voidReset the current position in stream to beginning or last mark (if supported).
Inherited from: \FilterReader::reset()
setBeginToken(
string $beginToken
)
:
voidSets the "begin token" character.
| Name | Type | Description |
|---|---|---|
| $beginToken | string | the character used to denote the beginning of a token. |

setEndToken(
string $endToken
)
:
voidSets the "end token" character.
| Name | Type | Description |
|---|---|---|
| $endToken | string | the character used to denote the end of a token |

setInitialized(
boolean $initialized
)
:
void
| Name | Type | Description |
|---|---|---|
| $initialized | boolean | Whether or not the filter is initialized. |

setParameters(
$parameters
)
:
void| Name | Type | Description |
|---|---|---|
| $parameters |

setProject(
object $project
)
:
void
| Name | Type | Description |
|---|---|---|
| $project | object | The project this filter is part of. Should not be |

setReader(
$in
)
:
void| Name | Type | Description |
|---|---|---|
| $in |

setTokens(
array $tokens
)
:
voidSets the map of tokens to replace.
; used by ReplaceTokens::chain()
| Name | Type | Description |
|---|---|---|
| $tokens | array | A map (String->String) of token keys to replacement values. Must not be |

setTokensources(
array $sources
)
:
voidSets the tokensources to use; used by ReplaceTokens::chain()
| Name | Type | Description |
|---|---|---|
| $sources | array | An array of token sources. |
\Token
Holds a token.
Properties
Methods

addText(
string $value
)
:
voidSets the token value from text.
| Name | Type | Description |
|---|---|---|
| $value | string | The value for this token. Must not be |

getKey(
)
:
stringReturns the key for this token.
| Type | Description |
|---|---|
| string | The key for this token. |

getValue(
)
:
stringReturns the value for this token.
| Type | Description |
|---|---|
| string | The value for this token. |

setKey(
string $key
)
:
voidSets the token key.
| Name | Type | Description |
|---|---|---|
| $key | string | The key for this token. Must not be |