org.carrot2.labs.smartsprites.css

Class CssSyntaxUtils

java.lang.Object

org.carrot2.labs.smartsprites.css.CssSyntaxUtils

public class CssSyntaxUtils
extends Object

A few utility methods for processing CSS syntax.

Constructor Summary

Constructors

Constructor and Description
CssSyntaxUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static List<CssProperty>	extractProperties(String text) Extracts CSS properties from the provided String.
static List<CssProperty>	extractRules(String text, MessageLog messageLog) Extracts CSS properties from the provided String and logs warnings to the provided MessageLog.
static String	getValue(Map<String,CssProperty> rules, String property) Returns the value of a CSS property if it exists, null otherwise.
static boolean	hasNonBlankValue(Map<String,CssProperty> properties, String propertyName) Returns true if the the provided map contains a property with the specified name that has a non-blank value.
static Color	parseColor(String colorValue, MessageLog messageLog, Color defaultColor) Parses a hexadecimal format (#fff or #ffffff) of CSS color into a Color object.
static Map<String,CssProperty>	propertiesAsMap(Collection<CssProperty> rules) Converts the provided collection of CSS properties to a Map with keys being property names and values being CssProperty objects.
static String	unpackUrl(String urlValue) Extracts the actual url from the CSS url expression like url('actua_url').
static String	unpackUrl(String urlValue, MessageLog messageLog) Extracts the actual url from the CSS url expression like url('actua_url') and logs warnings to the provided MessageLog.

Methods inherited from class java.lang.Object

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

Constructor Detail

CssSyntaxUtils

public CssSyntaxUtils()

Method Detail

extractProperties

public static List<CssProperty> extractProperties(String text)

Extracts CSS properties from the provided String.

extractRules

public static List<CssProperty> extractRules(String text,
                             MessageLog messageLog)

Extracts CSS properties from the provided String and logs warnings to the provided MessageLog.

propertiesAsMap

public static Map<String,CssProperty> propertiesAsMap(Collection<CssProperty> rules)

Converts the provided collection of CSS properties to a Map with keys being property names and values being CssProperty objects.

getValue

public static String getValue(Map<String,CssProperty> rules,
              String property)

Returns the value of a CSS property if it exists, null otherwise.

hasNonBlankValue

public static boolean hasNonBlankValue(Map<String,CssProperty> properties,
                       String propertyName)

Returns true if the the provided map contains a property with the specified name that has a non-blank value.

unpackUrl

public static String unpackUrl(String urlValue)

Extracts the actual url from the CSS url expression like url('actua_url').

unpackUrl

public static String unpackUrl(String urlValue,
               MessageLog messageLog)

Extracts the actual url from the CSS url expression like url('actua_url') and logs warnings to the provided MessageLog.

parseColor

public static Color parseColor(String colorValue,
               MessageLog messageLog,
               Color defaultColor)

Parses a hexadecimal format (#fff or #ffffff) of CSS color into a Color object. The RGB format (rgb(100, 0, 0)) is currently not supported. In case of parse errors, the default is returned