package tk.eclipse.plugin.jspeditor.editors;
import java.io.File;
import java.io.FileInputStream;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import tk.eclipse.plugin.htmleditor.HTMLUtil;
import tk.eclipse.plugin.htmleditor.assist.AttributeInfo;
import tk.eclipse.plugin.htmleditor.assist.TagInfo;
/**
* @author Naoki Takezoe
*/
public class TagFileParser {
private static final Pattern ATTRIBUTE = Pattern.compile("<%@\\s*attribute\\s+(.+?)%>",Pattern.DOTALL);
private static final Pattern NAME = Pattern.compile("name\\s*=\\s*\"(.+?)\"");
private static final Pattern REQUIRED = Pattern.compile("required\\s*=\\s*\"(.+?)\"");
public static TagInfo parseTagFile(String prefix, File file) throws Exception {
String fileName = file.getName();
TagInfo tag = new TagInfo(prefix + ":" + fileName.substring(0, fileName.lastIndexOf('.')), true);
byte[] buf = HTMLUtil.readStream(new FileInputStream(file));
Matcher matcher = ATTRIBUTE.matcher(new String(buf));
while (matcher.find()) {
String content = matcher.group(1);
String name = getAttribute(content, NAME);
boolean required = getBooleanValue(getAttribute(content, REQUIRED));
tag.addAttributeInfo(new AttributeInfo(name, true, AttributeInfo.NONE, required));
}
return tag;
}
private static boolean getBooleanValue(String value){
if(value.equals("true")){
return true;
}
return false;
}
private static String getAttribute(String source,Pattern pattern){
Matcher matcher = pattern.matcher(source);
if(matcher.find()){
return matcher.group(1);
}
return null;
}
}