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

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.lang.String`	`getDimensionUnitText()`	Returns the string representation of the unit.
`float`	`getFloatValue()`	Returns the float value.
`java.lang.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.
`java.lang.String`	`getStringValue()`	Returns the string value.
`LexicalUnit`	`getSubValues()`	Returns a list of values inside the sub expression.

- Field Detail
  - 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
```
    <
    
    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
```
    <=
    
    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 Detail
  - 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
```
java.lang.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
```
java.lang.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
```
java.lang.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

Interface LexicalUnit

Field Summary

Method Summary

Field Detail

SAC_OPERATOR_COMMA

SAC_OPERATOR_PLUS

SAC_OPERATOR_MINUS

SAC_OPERATOR_MULTIPLY

SAC_OPERATOR_SLASH

SAC_OPERATOR_MOD

SAC_OPERATOR_EXP

SAC_OPERATOR_LT

SAC_OPERATOR_GT

SAC_OPERATOR_LE

SAC_OPERATOR_GE

SAC_OPERATOR_TILDE

SAC_INHERIT

SAC_INTEGER

SAC_REAL

SAC_EM

SAC_EX

SAC_PIXEL

SAC_INCH

SAC_CENTIMETER

SAC_MILLIMETER

SAC_POINT

SAC_PICA

SAC_PERCENTAGE

SAC_URI

SAC_COUNTER_FUNCTION

SAC_COUNTERS_FUNCTION

SAC_RGBCOLOR

SAC_DEGREE

SAC_GRADIAN

SAC_RADIAN

SAC_MILLISECOND

SAC_SECOND

SAC_HERTZ

SAC_KILOHERTZ

SAC_IDENT

SAC_STRING_VALUE

SAC_ATTR

SAC_RECT_FUNCTION

SAC_UNICODERANGE

SAC_SUB_EXPRESSION

SAC_FUNCTION

SAC_DIMENSION

Method Detail

getLexicalUnitType

getNextLexicalUnit

getPreviousLexicalUnit

getIntegerValue

getFloatValue

getDimensionUnitText

getFunctionName

getParameters

getStringValue

getSubValues