MailMimeParser 0.4

DateConsumer extends GenericConsumer

Parses a date header into a Part\DatePart taking care of comment and quoted parts as necessary.

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author

Zaahid Bateson

Table of Contents

$consumerService  : ConsumerService
$partFactory  : HeaderPartFactory
__invoke()  : array<string|int, HeaderPart>
Invokes parsing of a header's value into header parts.
getInstance()  : mixed
Returns the singleton instance for the class.
__construct()  : mixed
Initializes the instance.
advanceToNextToken()  : mixed
Determines if the iterator should be advanced to the next token after reading tokens or finding a start token.
filterIgnoredSpaces()  : array<string|int, HeaderPart>
Filters out ignorable spaces between parts in the passed array.
getAllConsumers()  : array<string|int, AbstractConsumer>
Returns this consumer and all unique sub consumers.
getAllTokenSeparators()  : array<string|int, string>
Returns a list of regular expression markers for this consumer and all sub-consumers by calling 'getTokenSeparators'.
getConsumerTokenParts()  : array<string|int, HeaderPart>|array<string|int, mixed>
Iterates through this consumer's sub-consumers checking if the current token triggers a sub-consumer's start token and passes control onto that sub-consumer's parseTokenIntoParts. If no sub-consumer is responsible for the current token, calls getPartForToken and returns it in an array.
getPartForToken()  : HeaderPart
Returns a Part\LiteralPart for the current token
getSubConsumers()  : array<string|int, AbstractConsumer>
Called during construction to set up the list of sub-consumers that will take control from this consumer should a token match a sub-consumer's start token.
getTokenParts()  : array<string|int, HeaderPart>|array<string|int, mixed>
Returns an array of \ZBateson\MailMimeParser\Header\Part\HeaderPart for the current token on the iterator.
getTokenSeparators()  : array<string|int, string>
Returns an array of regular expression separators specific to this consumer. The returned patterns are used to split the header value into tokens for the consumer to parse into parts.
getTokenSplitPattern()  : string
Returns a regex pattern used to split the input header string. The default implementation calls getAllTokenSeparators and implodes the returned array with the regex OR '|' character as its glue.
isEndToken()  : mixed
Returns true if the passed string token marks the end marker for the current consumer.
isStartToken()  : mixed
Returns true if the passed string token marks the beginning marker for the current consumer.
parseTokensIntoParts()  : array<string|int, HeaderPart>
Iterates over the passed token Iterator and returns an array of parsed \ZBateson\MailMimeParser\Header\Part\HeaderPart objects.
processParts()  : array<string|int, HeaderPart>|array<string|int, mixed>
Concatenates the passed parts and constructs a single Part\DatePart, returning it in an array with a single element.
splitRawValue()  : array<string|int, mixed>
Returns an array of split tokens from the input string.
addSpaces()  : mixed
Checks if the passed space part should be added to the returned parts and adds it.
addSpaceToRetParts()  : mixed
Loops over the $parts array from the current position, checks if the space should be added, then adds it to $retParts and returns.
isSpaceToken()  : bool
Returns true if the passed HeaderPart is a Token instance and a space.
parseRawValue()  : array<string|int, HeaderPart>
Called by __invoke to parse the raw header value into header parts.
shouldAddSpace()  : bool
Returns true if a space should be added based on the passed last and next parts.

Properties

Methods

__invoke()

Invokes parsing of a header's value into header parts.

public __invoke(string $value) : array<string|int, HeaderPart>
Parameters
$value : string

the raw header value

Return values
array<string|int, HeaderPart>

the array of parsed parts

advanceToNextToken()

Determines if the iterator should be advanced to the next token after reading tokens or finding a start token.

protected advanceToNextToken(Iterator $tokens, bool $isStartToken) : mixed

The default implementation will advance for a start token, but not advance on the end token of the current consumer, allowing the end token to be passed up to a higher-level consumer.

Parameters
$tokens : Iterator
$isStartToken : bool
Return values
mixed

filterIgnoredSpaces()

Filters out ignorable spaces between parts in the passed array.

protected filterIgnoredSpaces(array<string|int, HeaderPart$parts) : array<string|int, HeaderPart>

Spaces with parts on either side of it that specify they can be ignored are filtered out. filterIgnoredSpaces is called from within processParts, and if needed by an implementing class that overrides processParts, must be specifically called.

Parameters
$parts : array<string|int, HeaderPart>
Return values
array<string|int, HeaderPart>

getAllConsumers()

Returns this consumer and all unique sub consumers.

protected getAllConsumers() : array<string|int, AbstractConsumer>

Loops into the sub-consumers (and their sub-consumers, etc...) finding all unique consumers, and returns them in an array.

Return values
array<string|int, AbstractConsumer>

getAllTokenSeparators()

Returns a list of regular expression markers for this consumer and all sub-consumers by calling 'getTokenSeparators'.

protected getAllTokenSeparators() : array<string|int, string>

.

Return values
array<string|int, string>

an array of regular expression markers

getConsumerTokenParts()

Iterates through this consumer's sub-consumers checking if the current token triggers a sub-consumer's start token and passes control onto that sub-consumer's parseTokenIntoParts. If no sub-consumer is responsible for the current token, calls getPartForToken and returns it in an array.

protected getConsumerTokenParts(Iterator $tokens) : array<string|int, HeaderPart>|array<string|int, mixed>
Parameters
$tokens : Iterator
Return values
array<string|int, HeaderPart>|array<string|int, mixed>

getPartForToken()

Returns a Part\LiteralPart for the current token

protected getPartForToken(string $token, bool $isLiteral) : HeaderPart
Parameters
$token : string
$isLiteral : bool
Return values
HeaderPart

getSubConsumers()

Called during construction to set up the list of sub-consumers that will take control from this consumer should a token match a sub-consumer's start token.

protected abstract getSubConsumers() : array<string|int, AbstractConsumer>
Return values
array<string|int, AbstractConsumer>

the array of consumers

getTokenParts()

Returns an array of \ZBateson\MailMimeParser\Header\Part\HeaderPart for the current token on the iterator.

protected getTokenParts(Iterator $tokens) : array<string|int, HeaderPart>|array<string|int, mixed>

If the current token is a start token from a sub-consumer, the sub- consumer's parseTokensIntoParts method is called.

Parameters
$tokens : Iterator
Return values
array<string|int, HeaderPart>|array<string|int, mixed>

getTokenSeparators()

Returns an array of regular expression separators specific to this consumer. The returned patterns are used to split the header value into tokens for the consumer to parse into parts.

protected abstract getTokenSeparators() : array<string|int, string>

Each array element makes part of a generated regular expression that is used in a call to preg_split(). RegEx patterns can be used, and care should be taken to escape special characters.

Return values
array<string|int, string>

the array of patterns

getTokenSplitPattern()

Returns a regex pattern used to split the input header string. The default implementation calls getAllTokenSeparators and implodes the returned array with the regex OR '|' character as its glue.

protected getTokenSplitPattern() : string
Return values
string

the regex pattern

isEndToken()

Returns true if the passed string token marks the end marker for the current consumer.

protected abstract isEndToken(string $token) : mixed
Parameters
$token : string

the current token

Return values
mixed

isStartToken()

Returns true if the passed string token marks the beginning marker for the current consumer.

protected abstract isStartToken(string $token) : mixed
Parameters
$token : string

the current token

Return values
mixed

parseTokensIntoParts()

Iterates over the passed token Iterator and returns an array of parsed \ZBateson\MailMimeParser\Header\Part\HeaderPart objects.

protected parseTokensIntoParts(Iterator $tokens) : array<string|int, HeaderPart>

The method checks each token to see if the token matches a sub-consumer's start token, or if it matches the current consumer's end token to stop processing.

If a sub-consumer's start token is matched, the sub-consumer is invoked and its returned parts are merged to the current consumer's header parts.

After all tokens are read and an array of Header\Parts are constructed, the array is passed to AbstractConsumer::processParts for any final processing.

Parameters
$tokens : Iterator

an iterator over a string of tokens

Return values
array<string|int, HeaderPart>

an array of parsed parts

processParts()

Concatenates the passed parts and constructs a single Part\DatePart, returning it in an array with a single element.

protected processParts(array<string|int, HeaderPart$parts) : array<string|int, HeaderPart>|array<string|int, mixed>
Parameters
$parts : array<string|int, HeaderPart>
Return values
array<string|int, HeaderPart>|array<string|int, mixed>

splitRawValue()

Returns an array of split tokens from the input string.

protected splitRawValue(string $rawValue) : array<string|int, mixed>

The method calls preg_split using getTokenSplitPattern. The split array will not contain any empty parts and will contain the markers.

Parameters
$rawValue : string

the raw string

Return values
array<string|int, mixed>

the array of tokens

addSpaces()

Checks if the passed space part should be added to the returned parts and adds it.

private addSpaces(array<string|int, HeaderPart$parts, array<string|int, HeaderPart&$retParts, int $curIndex[, HeaderPart &$spacePart = null ]) : mixed

Never adds a space if it's the first part, otherwise only add it if either part isn't set to ignore the space

Parameters
$parts : array<string|int, HeaderPart>
$retParts : array<string|int, HeaderPart>
$curIndex : int
$spacePart : HeaderPart = null
Return values
mixed

addSpaceToRetParts()

Loops over the $parts array from the current position, checks if the space should be added, then adds it to $retParts and returns.

private addSpaceToRetParts(array<string|int, HeaderPart$parts, array<string|int, HeaderPart&$retParts, int $curIndex, HeaderPart &$spacePart, HeaderPart $lastPart) : mixed
Parameters
$parts : array<string|int, HeaderPart>
$retParts : array<string|int, HeaderPart>
$curIndex : int
$spacePart : HeaderPart
$lastPart : HeaderPart
Return values
mixed

isSpaceToken()

Returns true if the passed HeaderPart is a Token instance and a space.

private isSpaceToken(HeaderPart $part) : bool
Parameters
$part : HeaderPart
Return values
bool

parseRawValue()

Called by __invoke to parse the raw header value into header parts.

private parseRawValue(string $value) : array<string|int, HeaderPart>

Calls splitTokens to split the value into token part strings, then calls parseParts to parse the returned array.

Parameters
$value : string
Return values
array<string|int, HeaderPart>

the array of parsed parts

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