private String getSingleLineOfChildren(final List children) {
final StringBuilder result = new StringBuilder();
final Iterator childrenIt = children.iterator();
boolean isFirst = true;
while (childrenIt.hasNext()) {
final Object child = childrenIt.next();
if (!(child instanceof ContentNode)) {
return null;
} else {
String content = child.toString();
// if first item trims it from left
if (isFirst) {
content = Utils.ltrim(content);
}
// if last item trims it from right
if (!childrenIt.hasNext()) {
content = Utils.rtrim(content);
}
if (content.indexOf('\n') >= 0 || content.indexOf('\r') >= 0) {
return null;
}
result.append(content);
}
isFirst = false;
}
return result.toString();
}
