Rule Class Reference

Public Member Functions
	__construct ($start, $end=null)
	start ()
	end ()

Public Attributes
const	ALL_WHITESPACE = '/(\s|\r|\n)+/'
const	C_IDENTIFIER = '/[a-z_][a-z0-9_]*/i'
const	C_COMMENT = '#//.*?\n|/\*.*?\*/#s'
const	C_MULTILINECOMMENT = '#/\*.*?\*/#s'
const	DOUBLEQUOTESTRING = '/"(?:\\\\"|.)*?"/s'
const	SINGLEQUOTESTRING = "/'(?:\\\\'|.)*?'/s"
const	C_DOUBLEQUOTESTRING = '/L?"(?:\\\\"|.)*?"/s'
const	C_SINGLEQUOTESTRING = "/L?'(?:\\\\'|.)*?'/s"
const	STRING = '/"(?:\\\\"|.)*?"|\'(?:\\\\\'|.)*?\'/s'
const	C_NUMBER

Detailed Description

Represents a nesting rule in the grammar of a language definition.

Individual rules can either be represented by raw strings ("simple" rules) or by a nesting rule. Nesting rules specify where they can start and end. Inside a nesting rule, other rules may be applied (both simple and nesting). For example, a nesting rule may define a string literal. Inside that string, other rules may be applied that recognize escape sequences.

To use a nesting rule, supply how it may start and end, e.g.: $string_rule = array('string' => new Rule('/"/', '/"/')); You also need to specify nested states: $string_states = array('string' => 'escaped'); Now you can add another rule for escaped: $escaped_rule = array('escaped' => '/\(x{1,4}|.)/');

Constructor & Destructor Documentation

__construct()

Rule::__construct	(		$start,
			$end = null
	)

Member Function Documentation

end()

Rule::end

(

)

Returns the pattern with which this rule may end.

Returns

string

start()

Rule::start

(

)

Returns the pattern with which this rule starts.

Returns

string

Member Data Documentation

ALL_WHITESPACE

const Rule::ALL_WHITESPACE = '/(\s|\r|\n)+/'

Common rules.

C_COMMENT

const Rule::C_COMMENT = '#//.*?\n|/\*.*?\*/#s'

C_DOUBLEQUOTESTRING

const Rule::C_DOUBLEQUOTESTRING = '/L?"(?:\\\\"|.)*?"/s'

C_IDENTIFIER

const Rule::C_IDENTIFIER = '/[a-z_][a-z0-9_]*/i'

C_MULTILINECOMMENT

const Rule::C_MULTILINECOMMENT = '#/\*.*?\*/#s'

C_NUMBER

const Rule::C_NUMBER

Initial value:

= '/
        (?: # Integer followed by optional fractional part.
            (?:
                0(?:
                    x[0-9a-f]+
                    |
                    [0-7]*
                )
                |
                \d+
            )
            (?:\.\d*)?
            (?:e[+-]\d+)?
        )
        |
        (?: # Just the fractional part.
            (?:\.\d+)
            (?:e[+-]?\d+)?
        )
        /ix'

C_SINGLEQUOTESTRING

const Rule::C_SINGLEQUOTESTRING = "/L?'(?:\\\\'|.)*?'/s"

DOUBLEQUOTESTRING

const Rule::DOUBLEQUOTESTRING = '/"(?:\\\\"|.)*?"/s'

SINGLEQUOTESTRING

const Rule::SINGLEQUOTESTRING = "/'(?:\\\\'|.)*?'/s"

STRING

const Rule::STRING = '/"(?:\\\\"|.)*?"|\'(?:\\\\\'|.)*?\'/s'

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The documentation for this class was generated from the following file:

• Websites/webkit.org/wp-content/plugins/hyperlight/hyperlight/hyperlight.php