com.openexchange.mail.text
Class CSSMatcher

java.lang.Object
  com.openexchange.mail.text.CSSMatcher

public final class CSSMatcher
extends java.lang.Object

CSSMatcher - Provides several utility methods to check CSS content.

Author:

Thorben Betten

Method Summary

static boolean	checkCSS(java.lang.StringBuilder cssBuilder, java.util.Map<java.lang.String,java.util.Set<java.lang.String>> styleMap, boolean findBlocks, boolean removeIfAbsent) Iterates over CSS blocks contained in specified string argument and checks each block against given style map
static boolean	checkCSSElements(java.lang.StringBuilder cssBuilder, java.util.Map<java.lang.String,java.util.Set<java.lang.String>> styleMap, boolean removeIfAbsent) Iterates over CSS elements contained in specified string argument and checks each element and its value against given style map
static boolean	containsCSSElement(java.lang.String css) Checks if specified string argument contains at least one CSS element
static boolean	matches(java.lang.String value, java.util.Set<java.lang.String> allowedValuesSet) Checks if specified CSS value is matched by given allowed values

Methods inherited from class java.lang.Object

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

Method Detail

matches

public static boolean matches(java.lang.String value,
                              java.util.Set<java.lang.String> allowedValuesSet)

Checks if specified CSS value is matched by given allowed values

The allowed values may contain following patterns to cover certain CSS types:

• u: url(<URL>)
• n: number string without %
• N: number string
• c: color
• d: delete
• *: any value
• t: time

Parameters:

value - The value

allowedValuesSet - The allowed values

Returns:

true if value is matched by given allowed values; otherwise false

checkCSS

public static boolean checkCSS(java.lang.StringBuilder cssBuilder,
                               java.util.Map<java.lang.String,java.util.Set<java.lang.String>> styleMap,
                               boolean findBlocks,
                               boolean removeIfAbsent)

Iterates over CSS blocks contained in specified string argument and checks each block against given style map

Parameters:

cssBuilder - A StringBuilder containing CSS content

styleMap - The style map

findBlocks - true to iterate over CSS blocks; otherwise false to iterate over CSS elements

removeIfAbsent - true to completely remove CSS element if not contained in specified style map; otherwise false

Returns:

true if modified; otherwise false

checkCSSElements

public static boolean checkCSSElements(java.lang.StringBuilder cssBuilder,
                                       java.util.Map<java.lang.String,java.util.Set<java.lang.String>> styleMap,
                                       boolean removeIfAbsent)

Iterates over CSS elements contained in specified string argument and checks each element and its value against given style map

Parameters:

cssBuilder - A StringBuilder containing the CSS content

styleMap - The style map

removeIfAbsent - true to completely remove CSS element if not contained in specified style map; otherwise false

Returns:

true if modified; otherwise false

containsCSSElement

public static boolean containsCSSElement(java.lang.String css)

Checks if specified string argument contains at least one CSS element

Parameters:

css - The CSS string

Returns:

true if specified string argument contains at least one CSS element; otherwise false