jodd-lagarto/src/main/java/jodd/lagarto/LagartoParser.java
private boolean isAppropriateTagName(final char[] lowerCaseNameToMatch, final int from, final int to) {
		final int len = to - from;

		if (len != lowerCaseNameToMatch.length) {
			return false;
		}

		for (int i = from, k = 0; i < to; i++, k++) {
			char c = input[i];

			c = CharUtil.toLowerAscii(c);

			if (c != lowerCaseNameToMatch[k]) {
				return false;
			}
		}
		return true;
	}
private boolean isAppropriateTagName(final char[] lowerCaseNameToMatch, final int from, final int to) {
		final int len = to - from;

		if (len != lowerCaseNameToMatch.length) {
			return false;
		}

		for (int i = from, k = 0; i < to; i++, k++) {
			char c = input[i];

			c = CharUtil.toLowerAscii(c);

			if (c != lowerCaseNameToMatch[k]) {
				return false;
			}
		}
		return true;
	}
---------------------------------------------------------------- util