com.jcabi.w3c.Validator Maven / Gradle / Ivy
/**
* Copyright (c) 2011-2014, jcabi.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met: 1) Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer. 2) Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution. 3) Neither the name of the jcabi.com nor
* the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jcabi.w3c;
import java.io.IOException;
/**
* Validator of CSS pages through W3C validation API.
*
* Retrieve it from {@link ValidatorBuilder} and use like this:
*
*
HtmlValidator validator = new ValidatorBuilder().css();
* ValidationResponse response = validator.validate(text);
* if (!response.valid()) {
* // report about a problem
* }
*
* Sometimes this Jigsaw validator makes mistakes, sometimes you just need to
* use some IE-specific feature, which is not CSS compliant. In this case you
* may add comments to the document, at the end of every line you want to ignore
* during validation, for example:
*
*
div.test {
* color: red;
* #position: 50%; /* JIGSAW: this is a IE_-related hack */
* }
*
* You can also instruct the validator to ingore the entire file, by means
* of adding {@code JIGSAW IGNORE} comment anywhere in the text, for example:
*
*
/* JIGSAW IGNORE: it's an experimental file */
* div.test {
* something-totally-incorrect:...
* }
*
* Validation will happen anyway, but {@link ValidationResponse#valid()}
* will return {@code TRUE}. You will still be able to read errors and warnings
* from it, but it will be valid.
*
*
Objects of this interface should be immutable and thread-safe.
*
* @author Yegor Bugayenko ([email protected])
* @version $Id$
* @see W3C API, CSS
* @see ValidatorBuilder
*/
public interface Validator {
/**
* Validate and return validation response.
*
*
The method should never throw runtime exceptions, no matter what
* happened with the HTTP connection to the W3C server. It will return
* an invalid response, but will never throw.
*
* @param content The HTML/CSS content to validate
* @return The response
* @throws IOException If fails
*/
ValidationResponse validate(String content) throws IOException;
}