Module io.sf.carte.css4j

Package io.sf.carte.doc.style.css.impl

Class CSSUtil

java.lang.Object

io.sf.carte.doc.style.css.impl.CSSUtil

public class CSSUtil
extends Object

Utility methods related to CSS.

Constructor Summary

Constructors

Constructor	Description
CSSUtil()

Method Summary

Modifier and Type	Method	Description
static boolean	isEnvLengthName(String name)
static boolean	isInvalidCSSContentType(URL url, String conType)	Check whether the given content-type is invalid for the provided URL pointing to a style sheet.
static boolean	isUnimplementedImageFunction(String lcfName)	Check whether the given function name is a proposed image function that was not yet implemented in browsers at the time of last revision.
static boolean	isValidIdentifier(CharSequence s)	Is the given string a valid CSS identifier?
static boolean	isValidPseudoName(CharSequence s)	Is the given string a valid CSS pseudo-element/class name?
static CSSValueSyntax.Match	matchEnv(CSSValueSyntax rootSyntax, CSSValueSyntax syntax, String name, LexicalUnit fallback)	Match an environment variable.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CSSUtil

public CSSUtil()

Method Details

isValidIdentifier

public static boolean isValidIdentifier(CharSequence s)

Is the given string a valid CSS identifier?

Parameters:

s - the non-empty identifier to test; cannot contain hex escapes.

Returns:

true if is a valid identifier.

isValidPseudoName

public static boolean isValidPseudoName(CharSequence s)

Is the given string a valid CSS pseudo-element/class name?

Parameters:

s - the non-empty name to test; cannot contain escapes.

Returns:

true if is a valid name.

isInvalidCSSContentType

public static boolean isInvalidCSSContentType(URL url,
 String conType)

Check whether the given content-type is invalid for the provided URL pointing to a style sheet.

Parameters:

url - the URL.

conType - the content-type.

Returns:

true if the content-type is invalid for a CSS style sheet.

isUnimplementedImageFunction

public static boolean isUnimplementedImageFunction(String lcfName)

Check whether the given function name is a proposed image function that was not yet implemented in browsers at the time of last revision.

This method helps the library in processing image functions that had not been implemented by browsers when it was released.

Parameters:

lcfName - the lower-case name of the function.

Returns:

true if the name is an unimplemented proposed image function.

matchEnv

public static CSSValueSyntax.Match matchEnv(CSSValueSyntax rootSyntax,
 CSSValueSyntax syntax,
 String name,
 LexicalUnit fallback)

Match an environment variable.

isEnvLengthName

public static boolean isEnvLengthName(String name)