/** Classify an input by extension and use the appropriate parser. */
static ParseTreeNode parseInput(InputSource is, CharProducer cp, MessageQueue mq)
throws ParseException {
String path = is.getUri().getPath();
ParseTreeNode input;
if (path.endsWith(".js")) {
JsLexer lexer = new JsLexer(cp);
JsTokenQueue tq = new JsTokenQueue(lexer, is);
if (tq.isEmpty()) {
return null;
}
Parser p = new Parser(tq, mq);
input = p.parse();
tq.expectEmpty();
} else if (path.endsWith(".html") || path.endsWith(".xhtml")) {
DomParser p = new DomParser(new HtmlLexer(cp), is, mq);
if (p.getTokenQueue().isEmpty()) {
return null;
}
input = p.parseFragment();
p.getTokenQueue().expectEmpty();
} else if (path.endsWith(".css")) {
CssLexer lexer = new CssLexer(cp);
TokenQueue<CssTokenType> tq =
new TokenQueue<CssTokenType>(
lexer,
is,
new Criterion<Token<CssTokenType>>() {
public boolean accept(Token<CssTokenType> tok) {
return tok.type != CssTokenType.COMMENT && tok.type != CssTokenType.SPACE;
}
});
if (tq.isEmpty()) {
return null;
}
CssParser p = new CssParser(tq);
input = p.parseStyleSheet();
tq.expectEmpty();
} else {
throw new AssertionError("Can't classify input " + is);
}
return input;
}
private void runTest(String goldenIhtml, String inputIhtml, Message... expectedMessages)
throws Exception {
Element ihtmlRoot =
new DomParser(
DomParser.makeTokenQueue(
FilePosition.startOfFile(is), new StringReader(inputIhtml), true, false),
true,
mq)
.parseDocument();
new IhtmlSanityChecker(mq).check(ihtmlRoot);
for (Message msg : expectedMessages) {
assertMessage(
true,
msg.getMessageType(),
msg.getMessageLevel(),
msg.getMessageParts().toArray(new MessagePart[0]));
}
assertMessagesLessSevereThan(MessageLevel.WARNING);
String checkedIhtml = Nodes.render(ihtmlRoot, MarkupRenderMode.XML);
assertEquals(goldenIhtml, checkedIhtml);
}