Interface LexicalUnit

public interface LexicalUnit

This is a lexical unit for CSS values.

Remarks: Not all the following lexical units are supported (or will be supported) by CSS.

All examples are CSS2 compliant.

Version:

$Revision: 477010 $

Author:

Philippe Le Hegaret

Field Summary

Fields

Modifier and Type	Field	Description
static final short	SAC_ATTR	Attribute: attr(...).
static final short	SAC_CENTIMETER	Absolute length cm.
static final short	SAC_COUNTER_FUNCTION	function counter.
static final short	SAC_COUNTERS_FUNCTION	function counters.
static final short	SAC_DEGREE	Angle deg.
static final short	SAC_DIMENSION	unknown dimension.
static final short	SAC_EM	Relative lengthem.
static final short	SAC_EX	Relative lengthex.
static final short	SAC_FUNCTION	unknown function.
static final short	SAC_GRADIAN	Angle grad.
static final short	SAC_HERTZ	Frequency Hz.
static final short	SAC_IDENT	any identifier except inherit.
static final short	SAC_INCH	Absolute length in.
static final short	SAC_INHERIT	identifier inherit.
static final short	SAC_INTEGER	Integers.
static final short	SAC_KILOHERTZ	Frequency kHz.
static final short	SAC_MILLIMETER	Absolute length mm.
static final short	SAC_MILLISECOND	Time ms.
static final short	SAC_OPERATOR_COMMA	,
static final short	SAC_OPERATOR_EXP	^
static final short	SAC_OPERATOR_GE	>=
static final short	SAC_OPERATOR_GT	>
static final short	SAC_OPERATOR_LE	invalid input: '<'=
static final short	SAC_OPERATOR_LT	invalid input: '<'
static final short	SAC_OPERATOR_MINUS	-
static final short	SAC_OPERATOR_MOD	%
static final short	SAC_OPERATOR_MULTIPLY	*
static final short	SAC_OPERATOR_PLUS	+
static final short	SAC_OPERATOR_SLASH	/
static final short	SAC_OPERATOR_TILDE	~
static final short	SAC_PERCENTAGE	Percentage.
static final short	SAC_PICA	Absolute length pc.
static final short	SAC_PIXEL	Relative length px.
static final short	SAC_POINT	Absolute length pt.
static final short	SAC_RADIAN	Angle rad.
static final short	SAC_REAL	reals.
static final short	SAC_RECT_FUNCTION	function rect.
static final short	SAC_RGBCOLOR	RGB Colors.
static final short	SAC_SECOND	Time s.
static final short	SAC_STRING_VALUE	A string.
static final short	SAC_SUB_EXPRESSION	sub expressions (a) (a + b) (normal/none)
static final short	SAC_UNICODERANGE	A unicode range.
static final short	SAC_URI	URI: uri(...).

Method Summary

Modifier and Type	Method	Description
String	getDimensionUnitText()	Returns the string representation of the unit.
float	getFloatValue()	Returns the float value.
String	getFunctionName()	Returns the name of the function.
int	getIntegerValue()	Returns the integer value.
short	getLexicalUnitType()	An integer indicating the type of LexicalUnit.
LexicalUnit	getNextLexicalUnit()	Returns the next value or null if any.
LexicalUnit	getParameters()	The function parameters including operators (like the comma).
LexicalUnit	getPreviousLexicalUnit()	Returns the previous value or null if any.
String	getStringValue()	Returns the string value.
LexicalUnit	getSubValues()	Returns a list of values inside the sub expression.

Field Details

SAC_OPERATOR_COMMA

static final short SAC_OPERATOR_COMMA

,

See Also:

• Constant Field Values

SAC_OPERATOR_PLUS

static final short SAC_OPERATOR_PLUS

+

See Also:

• Constant Field Values

SAC_OPERATOR_MINUS

static final short SAC_OPERATOR_MINUS

-

See Also:

• Constant Field Values

SAC_OPERATOR_MULTIPLY

static final short SAC_OPERATOR_MULTIPLY

*

See Also:

• Constant Field Values

SAC_OPERATOR_SLASH

static final short SAC_OPERATOR_SLASH

/

See Also:

• Constant Field Values

SAC_OPERATOR_MOD

static final short SAC_OPERATOR_MOD

%

See Also:

• Constant Field Values

SAC_OPERATOR_EXP

static final short SAC_OPERATOR_EXP

^

See Also:

• Constant Field Values

SAC_OPERATOR_LT

static final short SAC_OPERATOR_LT

invalid input: '<'

See Also:

• Constant Field Values

SAC_OPERATOR_GT

static final short SAC_OPERATOR_GT

>

See Also:

• Constant Field Values

SAC_OPERATOR_LE

static final short SAC_OPERATOR_LE

invalid input: '<'=

See Also:

• Constant Field Values

SAC_OPERATOR_GE

static final short SAC_OPERATOR_GE

>=

See Also:

• Constant Field Values

SAC_OPERATOR_TILDE

static final short SAC_OPERATOR_TILDE

~

See Also:

• Constant Field Values

SAC_INHERIT

static final short SAC_INHERIT

identifier inherit.

See Also:

• Constant Field Values

SAC_INTEGER

static final short SAC_INTEGER

Integers.

See Also:

• getIntegerValue()
• Constant Field Values

SAC_REAL

static final short SAC_REAL

reals.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_EM

static final short SAC_EM

Relative lengthem.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_EX

static final short SAC_EX

Relative lengthex.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_PIXEL

static final short SAC_PIXEL

Relative length px.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_INCH

static final short SAC_INCH

Absolute length in.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_CENTIMETER

static final short SAC_CENTIMETER

Absolute length cm.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_MILLIMETER

static final short SAC_MILLIMETER

Absolute length mm.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_POINT

static final short SAC_POINT

Absolute length pt.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_PICA

static final short SAC_PICA

Absolute length pc.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_PERCENTAGE

static final short SAC_PERCENTAGE

Percentage.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_URI

static final short SAC_URI

URI: uri(...).

See Also:

• getStringValue()
• Constant Field Values

SAC_COUNTER_FUNCTION

static final short SAC_COUNTER_FUNCTION

function counter.

See Also:

• getFunctionName()
• getParameters()
• Constant Field Values

SAC_COUNTERS_FUNCTION

static final short SAC_COUNTERS_FUNCTION

function counters.

See Also:

• getFunctionName()
• getParameters()
• Constant Field Values

SAC_RGBCOLOR

static final short SAC_RGBCOLOR

RGB Colors. rgb(0, 0, 0) and #000

See Also:

• getFunctionName()
• getParameters()
• Constant Field Values

SAC_DEGREE

static final short SAC_DEGREE

Angle deg.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_GRADIAN

static final short SAC_GRADIAN

Angle grad.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_RADIAN

static final short SAC_RADIAN

Angle rad.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_MILLISECOND

static final short SAC_MILLISECOND

Time ms.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_SECOND

static final short SAC_SECOND

Time s.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_HERTZ

static final short SAC_HERTZ

Frequency Hz.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_KILOHERTZ

static final short SAC_KILOHERTZ

Frequency kHz.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

SAC_IDENT

static final short SAC_IDENT

any identifier except inherit.

See Also:

• getStringValue()
• Constant Field Values

SAC_STRING_VALUE

static final short SAC_STRING_VALUE

A string.

See Also:

• getStringValue()
• Constant Field Values

SAC_ATTR

static final short SAC_ATTR

Attribute: attr(...).

See Also:

• getStringValue()
• Constant Field Values

SAC_RECT_FUNCTION

static final short SAC_RECT_FUNCTION

function rect.

See Also:

• getFunctionName()
• getParameters()
• Constant Field Values

SAC_UNICODERANGE

static final short SAC_UNICODERANGE

A unicode range. @@TO BE DEFINED

See Also:

• Constant Field Values

SAC_SUB_EXPRESSION

static final short SAC_SUB_EXPRESSION

sub expressions (a) (a + b) (normal/none)

See Also:

• getSubValues()
• Constant Field Values

SAC_FUNCTION

static final short SAC_FUNCTION

unknown function.

See Also:

• getFunctionName()
• getParameters()
• Constant Field Values

SAC_DIMENSION

static final short SAC_DIMENSION

unknown dimension.

See Also:

• getFloatValue()
• getDimensionUnitText()
• Constant Field Values

Method Details

getLexicalUnitType

short getLexicalUnitType()

An integer indicating the type of LexicalUnit.

getNextLexicalUnit

LexicalUnit getNextLexicalUnit()

Returns the next value or null if any.

getPreviousLexicalUnit

LexicalUnit getPreviousLexicalUnit()

Returns the previous value or null if any.

getIntegerValue

int getIntegerValue()

Returns the integer value.

See Also:

• SAC_INTEGER

getFloatValue

float getFloatValue()

Returns the float value.

If the type of LexicalUnit is one of SAC_DEGREE, SAC_GRADIAN, SAC_RADIAN, SAC_MILLISECOND, SAC_SECOND, SAC_HERTZ or SAC_KILOHERTZ, the value can never be negative.

See Also:

• SAC_REAL
• SAC_DIMENSION
• SAC_EM
• SAC_EX
• SAC_PIXEL
• SAC_INCH
• SAC_CENTIMETER
• SAC_MILLIMETER
• SAC_POINT
• SAC_PICA
• SAC_PERCENTAGE
• SAC_DEGREE
• SAC_GRADIAN
• SAC_RADIAN
• SAC_MILLISECOND
• SAC_SECOND
• SAC_HERTZ
• SAC_KILOHERTZ

getDimensionUnitText

String getDimensionUnitText()

Returns the string representation of the unit.

if this lexical unit represents a float, the dimension is an empty string.

See Also:

• SAC_REAL
• SAC_DIMENSION
• SAC_EM
• SAC_EX
• SAC_PIXEL
• SAC_INCH
• SAC_CENTIMETER
• SAC_MILLIMETER
• SAC_POINT
• SAC_PICA
• SAC_PERCENTAGE
• SAC_DEGREE
• SAC_GRADIAN
• SAC_RADIAN
• SAC_MILLISECOND
• SAC_SECOND
• SAC_HERTZ
• SAC_KILOHERTZ

getFunctionName

String getFunctionName()

Returns the name of the function.

See Also:

• SAC_COUNTER_FUNCTION
• SAC_COUNTERS_FUNCTION
• SAC_RECT_FUNCTION
• SAC_FUNCTION
• SAC_RGBCOLOR

getParameters

LexicalUnit getParameters()

The function parameters including operators (like the comma). #000 is converted to rgb(0, 0, 0) can return null if SAC_FUNCTION.

See Also:

• SAC_COUNTER_FUNCTION
• SAC_COUNTERS_FUNCTION
• SAC_RECT_FUNCTION
• SAC_FUNCTION
• SAC_RGBCOLOR

getStringValue

String getStringValue()

Returns the string value.

If the type is SAC_URI, the return value doesn't contain uri(....) or quotes.

If the type is SAC_ATTR, the return value doesn't contain attr(....).

See Also:

• SAC_URI
• SAC_ATTR
• SAC_IDENT
• SAC_STRING_VALUE
• @@TO BE DEFINED

getSubValues

LexicalUnit getSubValues()

Returns a list of values inside the sub expression.

See Also:

• SAC_SUB_EXPRESSION