MailMimeParser 1.3

AddressConsumer extends AbstractConsumer

Parses a single part of an address header.

Represents a single part of a list of addresses. A part could be one email address, or one 'group' containing multiple addresses. The consumer ends on finding either a comma token, representing a separation between addresses, or a semi-colon token representing the end of a group.

A single email address may consist of just an email, or a name and an email address. Both of these are valid examples of a From header:

Groups must be named, for example:

Addresses may contain quoted parts and comments, and names may be mime-header encoded.

Tags
author

Zaahid Bateson

Table of Contents

$consumerService  : ConsumerService
$partFactory  : HeaderPartFactory
__construct()  : mixed
Initializes the instance.
__invoke()  : array<string|int, HeaderPart>
Invokes parsing of a header's value into header parts.
getInstance()  : mixed
Returns the singleton instance for the class.
getTokenSeparators()  : array<string|int, string>
Overridden to return patterns matching the beginning part of an address in a name/address part ("<" and ">" chars), end tokens ("," and ";"), and whitespace.
advanceToNextToken()  : mixed
Determines if the iterator should be advanced to the next token after reading tokens or finding a start token.
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|null
Constructs and returns a \ZBateson\MailMimeParser\Header\Part\HeaderPart for the passed string token. If the token should be ignored, the function must return null.
getSubConsumers()  : array<string|int, AbstractConsumer>
Returns the following as sub-consumers: - \ZBateson\MailMimeParser\Header\Consumer\AddressGroupConsumer - \ZBateson\MailMimeParser\Header\Consumer\CommentConsumer - \ZBateson\MailMimeParser\Header\Consumer\QuotedStringConsumer
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.
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()  : bool
Returns true for commas and semi-colons.
isStartToken()  : bool
AddressConsumer is "greedy", so this always returns true.
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>
Performs final processing on parsed parts.
splitRawValue()  : array<string|int, mixed>
Returns an array of split tokens from the input string.
parseRawValue()  : array<string|int, HeaderPart>
Called by __invoke to parse the raw header value into header parts.
processSinglePart()  : mixed
Checks if the passed part represents the beginning or end of an address part (less than/greater than characters) and either appends the value of the part to the passed $strValue, or sets up $strName

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

getTokenSeparators()

Overridden to return patterns matching the beginning part of an address in a name/address part ("<" and ">" chars), end tokens ("," and ";"), and whitespace.

public getTokenSeparators() : array<string|int, string>
Return values
array<string|int, string>

the patterns

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

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()

Constructs and returns a \ZBateson\MailMimeParser\Header\Part\HeaderPart for the passed string token. If the token should be ignored, the function must return null.

protected getPartForToken(string $token, bool $isLiteral) : HeaderPart|null

The default created part uses the instance's partFactory->newInstance method.

Parameters
$token : string

the token

$isLiteral : bool

set to true if the token represents a literal - e.g. an escaped token

Return values
HeaderPart|null

the constructed header part or null if the token should be ignored

getSubConsumers()

Returns the following as sub-consumers: - \ZBateson\MailMimeParser\Header\Consumer\AddressGroupConsumer - \ZBateson\MailMimeParser\Header\Consumer\CommentConsumer - \ZBateson\MailMimeParser\Header\Consumer\QuotedStringConsumer

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

the sub-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>

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 for commas and semi-colons.

protected isEndToken(string $token) : bool

Although the semi-colon is not strictly the end token of an AddressConsumer, it could end a parent AddressGroupConsumer. I can't think of a valid scenario where this would be an issue, but additional thought may be needed (and documented here).

Parameters
$token : string
Return values
bool

false

isStartToken()

AddressConsumer is "greedy", so this always returns true.

protected isStartToken(string $token) : bool
Parameters
$token : string
Return values
bool

false

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()

Performs final processing on parsed parts.

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

AddressConsumer's implementation looks for tokens representing the beginning of an address part, to create a Part\AddressPart out of a name/address pair, or assign the name part to a parsed Part\AddressGroupPart returned from its AddressGroupConsumer sub-consumer.

The returned array consists of a single element - either a Part\AddressPart or a Part\AddressGroupPart.

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

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

processSinglePart()

Checks if the passed part represents the beginning or end of an address part (less than/greater than characters) and either appends the value of the part to the passed $strValue, or sets up $strName

private processSinglePart(HeaderPart $part, string &$strName, string &$strValue) : mixed
Parameters
$part : HeaderPart
$strName : string
$strValue : string
Return values
mixed

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