How to use CTTypesetterSuggestClusterBreak in Core Text - iphone

I am having trouble in using CTTypesetterSuggestClusterBreak function of CTTypeSetterRef class. I want to use this method to get closest word boundry near an index. I am having difficult in the implementationof this method, i.e how and where this method must be used.
I have been banging my head over this but with no success yet. If anyone can help me in using this method I would be very greatful.
Thanx in advance

I'm not sure CoreText is appropriate for this task; it sounds like you should investigate CFStringTokenizer instead.

Related

function countByExample mybatis-generator help me

I have a problem, in my picture. I use mybatis and countByExample method was generated by MyBatis Generator. Can u help me and see it?
https://i.stack.imgur.com/e3arE.png
https://i.stack.imgur.com/WOp1f.png
It looks like you are reusing jobCtrlExample between method calls. if you do that, then you need to clear the previous conditions before you set new conditions. Probably adding this line will fix it:
jobCtrlExample.clear();
It would be better to create a new example class for every method.

Using boost's socket.async_send_to()

I've been stuck on this for a while now. I am trying to send the following:
boost::shared_ptr<uint8_t[]> m_data
over the wire using:
_socket.async_send_to(boost::asio::buffer(m_data), m_remote_endpoint,
boost::bind(&UDPServer::handle_send, this, message,
boost::asio::placeholders::error,
boost::asio::placeholders::bytes_transferred));
I get the error "no instance of overloaded function boost::asio::buffer matches the argument list boost::shared_ptr<uint8_t[]>"
m_data is filled in another function.
I suspect this is because I actually have to use the key word new on m_data. But I can't quite figure out how to do it. I've tried a few different variations. Can anybody offer me some insight here? This is probably more a question of how to dereference a shared pointer then anything. Thanks in advance!
boost::asio::buffer has an impressive lists of consttructors, but neither of them takes shared_ptr<[]> (possibly an oversight form lib authors).
In your case, you simply need to derefence shared ptr, for example, by calling get on it.

HTML::FormHandler How to Render Single Field

Occasionally, I find myself in situations where it would be useful to do something like this:
HTML::FormHandler::Field::Text->new(
name=>'name',
label=>'Name',
value=>'Ryan'
)->render();
There's nothing in the docs I've found that indicate that this shouldn't work. But apparently it doesn't because I get an error saying that the render routine doesn't exist in HTML::FormHandler::Field::Text.
Maybe I'm misunderstanding how widgets get applied and rendered, but I sure wish this or some alternative worked! Sometimes, it doesn't make sense to build up a whole "form" just for one field. Any thoughts?
It is called chaining. It is only going to work if method returns $self.
An article about this: http://www.perlmonks.org/?node_id=448444
Regards,

formatRelativeTime in TTTableMessageItem

I'm new to Three20, so this may seem like a very simple question.
How can I get the timestamp in TTTableMessageItem to be in relative
time format?
If it is not doable using TTTableMessageItem, what would you recommend
me to do to achieve that?
Thanks.
The function formatRelativeTime in NSDateAdditions is what you are looking for. Since this is a category function you can call it in on any NSDate object as long as you include NSDateAdditions.h in Three20Core

How can I create or associate a super column to a column in Perl using Net::Cassandra?

How can I create or associate a super column to a column in Perl using Net::Cassandra?
I just chatted with the module author and he doesn't understand the question. Then he guessed you want batch_insert which can take a supercolumn.
If that doesn't help, perhaps you step back, try to explain what you want to achieve and rephrase the question.
Best way, IMHO, is to submit a request to add information about super columns into documentation into Net::Cassandra bug tracker.
batch_insert is one way like daxim says; another way is to just use normal insert but specify super_column in the ColumnPath as well as the column_family.
It looks like Net::Cassandra stays pretty close to the thrift api, so this should be useful: http://wiki.apache.org/cassandra/API