CssUtils { public String extractUrl(final String url) { String str = null; if (url.startsWith("url")) { String urlString = url.substring(3).trim().replace("(", "").replace(")", "").trim(); if (urlString.startsWith("'") && urlString.endsWith("'")) { str = urlString.substring(urlString.indexOf("'")+1, urlString.lastIndexOf("'")); } else if ( urlString.startsWith("\"") && urlString.endsWith("\"") ) { str = urlString.substring(urlString.indexOf('"')+1, urlString.lastIndexOf('"')); } else { str = urlString; } } else { str = url; } return str; } private  CssUtils(); static CssUtils getInstance(); Map<String, String> parseBoxValues(final java.lang.String box,
                                             final java.lang.String pre, final java.lang.String post); Map<String, String> parseBoxValues(final String box,
                                              final String pre, final String post, String preKey); Map<String, String> parseBorder(final String border); Map<String, String> parseBorder(final String border, final String borderKey); String stripDoubleSpacesAndTrim(final String str); String stripDoubleSpacesTrimAndToLowerCase(final String str); Map<String, String> processBackground(final String background); Map<String, String> processListStyle(final String listStyle); Map<String, String> processFont(final String font); float checkMetricStyle(final Tag t, final String style); Float checkMetricStyle(final Map<String,String> css, final String style); boolean isMetricValue(final String value); boolean isRelativeValue(final String value); boolean isNumericValue(final String value); float parseValueToPt(final String value, final float baseValue); float parseRelativeValue(final String relativeValue, final float baseValue); float parsePxInCmMmPcToPt(final String length, final String defaultMetric); float parsePxInCmMmPcToPt(final String length); int determinePositionBetweenValueAndUnit(final String string); float getLeftAndRightMargin(final Tag t, final float pageWidth); String extractUrl(final String url); float validateTextHeight(final Map<String, String> css,
			float textHeight); float calculateMarginTop(final String value, final float largestFont, final MarginMemory configuration); float calculateMarginTop(final float value, final MarginMemory configuration); String trimAndRemoveQuoutes(String s); String[] splitComplexCssStyle(String s); static final int DEFAULT_FONT_SIZE_PT; }
@Test public void parseUrlSingleQuoted() { Assert.assertEquals("file.jpg", css.extractUrl("url( 'file.jpg')")); }
@Test public void parseUrlDoubleQuoted() { Assert.assertEquals("file.jpg", css.extractUrl("url ( \"file.jpg\" )")); }
@Test public void parseUnparsableUrl() { Assert.assertEquals("('file.jpg')", css.extractUrl("('file.jpg')")); }