/**
* Highlight stream.
*
* @param name the name
* @param input the input
* @param rendererName the renderer name
* @param encoding the encoding
* @return the string
* @throws IOException Signals that an I/O exception has occurred.
*/
public static String highlightStream(
String name, InputStream input, String rendererName, String encoding) throws IOException {
Renderer jspRenderer = XhtmlRendererFactory.getRenderer(rendererName);
if (jspRenderer != null) {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
jspRenderer.highlight(name, input, bos, encoding, true);
ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
Tokenizer tokenizer = new Tokenizer(new InputStreamReader(bis, encoding));
tokenizer.addSymbol(new TokenizerSymbol("EOL", "\n", null, false, false, true, false));
tokenizer.addSymbol(new TokenizerSymbol("EOL", "\r\n", null, false, false, true, false));
//
// JHighlight adds HTML comment as the first line, so if
// we number the lines we could end up with a line number and no line
// to avoid that we just ignore the first line alltogether.
//
StringBuilder buffer = new StringBuilder();
long counter = 0;
while (tokenizer.hasMore()) {
Token tk = tokenizer.nextToken();
if ("EOL".equals(tk.getName())) {
counter++;
buffer.append(tk.getText());
} else if (counter > 0) {
buffer.append("<span class=\"codeline\">");
buffer.append("<span class=\"linenum\">");
buffer.append(leftPad(Long.toString(counter), 6, " "));
buffer.append("</span>");
buffer.append(tk.getText());
buffer.append("</span>");
}
}
return buffer.toString();
}
return null;
}
/**
* Gets the jsp encoding.
*
* @param is the is
* @return the jsp encoding
* @throws IOException Signals that an I/O exception has occurred.
*/
public static String getJspEncoding(InputStream is) throws IOException {
String encoding = null;
String contentType = null;
Tokenizer jspTokenizer = new Tokenizer();
jspTokenizer.addSymbol("\n", true);
jspTokenizer.addSymbol(" ", true);
jspTokenizer.addSymbol("\t", true);
jspTokenizer.addSymbol(new TokenizerSymbol("dir", "<%@", "%>", false, false, true, false));
StringTokenizer directiveTokenizer = new StringTokenizer();
directiveTokenizer.addSymbol("\n", true);
directiveTokenizer.addSymbol(" ", true);
directiveTokenizer.addSymbol("\t", true);
directiveTokenizer.addSymbol("=");
directiveTokenizer.addSymbol("\"", "\"", false);
directiveTokenizer.addSymbol("'", "'", false);
StringTokenizer contentTypeTokenizer = new StringTokenizer();
contentTypeTokenizer.addSymbol(" ", true);
contentTypeTokenizer.addSymbol(";", true);
try (Reader reader = new InputStreamReader(is, "ISO-8859-1")) {
jspTokenizer.setReader(reader);
while (jspTokenizer.hasMore()) {
Token token = jspTokenizer.nextToken();
if ("dir".equals(token.getName())) {
directiveTokenizer.setString(token.getInnerText());
if (directiveTokenizer.hasMore()
&& directiveTokenizer.nextToken().getText().equals("page")) {
while (directiveTokenizer.hasMore()) {
Token directiveToken = directiveTokenizer.nextToken();
if ("pageEncoding".equals(directiveToken.getText())) {
if (directiveTokenizer.hasMore()
&& "=".equals(directiveTokenizer.nextToken().getText())) {
if (directiveTokenizer.hasMore()) {
encoding = directiveTokenizer.nextToken().getInnerText();
break;
}
}
} else if ("contentType".equals(directiveToken.getText())) {
if (directiveTokenizer.hasMore()
&& "=".equals(directiveTokenizer.nextToken().getText())) {
if (directiveTokenizer.hasMore()) {
contentType = directiveTokenizer.nextToken().getInnerText();
}
}
}
}
}
}
}
}
if (encoding == null && contentType != null) {
contentTypeTokenizer.setString(contentType);
while (contentTypeTokenizer.hasMore()) {
String token = contentTypeTokenizer.nextToken().getText();
if (token.startsWith("charset=")) {
encoding = token.substring("charset=".length());
break;
}
}
}
return encoding != null ? encoding : "ISO-8859-1";
}