ConfigElement processLine(String configfile, int lineno, CharBuffer buffer)
throws ConfigParseException {
char c;
final StringBuilder processLineBuilder;
final StringBuilder lineCommentBuilder;
processLineBuilder = new StringBuilder(MAX_LINE_LENGTH);
lineCommentBuilder = new StringBuilder(MAX_LINE_LENGTH);
buffer.mark();
while (buffer.hasRemaining()) {
final int position;
position = buffer.position();
c = buffer.get();
// System.out.println(position + ": " + c);
if (c == COMMENT_META) {
if (position >= 1 && buffer.get(position - 1) == '\\') {
/* Escaped semicolons aren't comments. */
} // NOPMD
else if (buffer.remaining() >= 3
&& buffer.get(position + 1) == COMMENT_TAG
&& buffer.get(position + 2) == COMMENT_TAG
&& buffer.get(position + 3) != COMMENT_TAG) {
/* Meta-Comment start detected ";--" */
currentCommentLevel++;
// System.out.println("Comment start, new level: " + currentCommentLevel);
if (!inComment()) {
commentBlock.append(";--");
buffer.position(position + 3);
buffer.mark();
continue;
}
} else if (inComment()
&& position >= 2
&& buffer.get(position - 1) == COMMENT_TAG
&& buffer.get(position - 2) == COMMENT_TAG) {
/* Meta-Comment end detected */
currentCommentLevel--;
if (!inComment()) {
buffer.reset();
// int commentLength = (position + 1) - buffer.position();
// buffer.reset();
// for (int i = 0; i < commentLength; i++)
// {
// commentBlock.append(buffer.get());
// }
commentBlock.append(c);
// System.out.println("Comment end at " + position + ": '" + commentBlock.toString() +
// "'");
buffer.position(position + 1);
buffer.compact();
buffer.flip();
// System.out.println("Buffer compacted");
continue;
}
} else {
if (!inComment()) {
/* If ; is found, and we are not nested in a comment, we immediately stop all comment processing */
// System.out.println("Found ; while not in comment");
while (buffer.hasRemaining()) {
lineCommentBuilder.append(buffer.get());
}
break;
} else {
/* Found ';' while in comment */
} // NOPMD
}
}
if (inComment()) {
commentBlock.append(c);
} else {
// System.out.println("Added '" + c + "' to processLine");
processLineBuilder.append(c);
}
}
String processLineString;
String lineCommentString;
ConfigElement configElement;
processLineString = processLineBuilder.toString().trim();
lineCommentString = lineCommentBuilder.toString().trim();
// System.out.println("process line: '" + processLineString + "'");
if (processLineString.length() == 0) {
if (lineCommentString.length() != 0) {
commentBlock.append(";");
commentBlock.append(lineCommentString);
}
if (!inComment()) {
commentBlock.append("\n");
}
return null;
}
try {
configElement = processTextLine(configfile, lineno, processLineString);
} catch (ConfigParseException e) {
// some parsing exceptions are treated as warnings by Asterisk, we mirror this behavior.
if (WARNING_CLASSES.contains(e.getClass())) {
warnings.add(e);
return null;
} else {
throw e;
}
}
if (lineCommentString.length() != 0) {
configElement.setComment(lineCommentString);
}
if (commentBlock.length() != 0) {
configElement.setPreComment(commentBlock.toString());
commentBlock.delete(0, commentBlock.length());
}
return configElement;
}
