Re: Hyperlinks in NSAttributedString?
Yes, it is possible. See the docs for NSAttributedString for details. There was also an example of how to make hyperlinks, the link to that sample code, i suppose, must be there, too. Best regards, Timofey On Jul 30, 2009, at 1:53 PM, Rick Mann wrote: I need to render short sentences in my UI, and make certain words clickable (and differently-styled). I know I can use a web view, but that seems like overkill. I currently have a multiline NSTextField. Is it possible to display an NSAttributedString, and have the cursor change over clickable words, and detect a click on those words? Or is a webkit view really the only easy way to go? Thanks! -- Rick ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/ok5.admin%40gmail.com This email sent to ok5.ad...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Multiple keyboard shortcuts for the same menu command
Well, you could have two different menu items doing the same thing and having the two shortcuts. On Jul 27, 2009, at 11:38 AM, Oleg Krupnov wrote: I'd like the Go Back command in my app to be triggered by both Cmd+[ and Cmd+- (left arrow) keyboard shortcuts. How do I do that? I am aware of the [NSMenuItem isAlternate] but it only works if the keyboard equivalents are the same and only the modifiers differ, whereas in my case the opposite is the case: the modifiers are the same and the keyboard equivalents are different. Is there a way to do it, desirably without much hassle (invisible buttons, Carbon, etc.)? Thanks! ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/ok5.admin%40gmail.com This email sent to ok5.ad...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: SQLite -- same DB, different machines - different results
Thank you all for your replies. I really didn't have any order by clause. But, unfortunately, I can't test it on my iMac right now. On Jun 11, 2009, at 6:30 PM, Gregory Weston wrote: Timofey wrote: I've written the alfa of my first app on the Mac which works in an acceptable manner on my macbook. But when i run it on my iMac, it returns different results for the in seemingly the same conditions. The application is a dictionary. As the user types a word into the searchfield, he/she gets a completion suggestion (much like in Xcode for class or variable or method names or like in Safari for web- addresses). In my case it is the first word in the database with the prefix the user has already typed. So, for example, if a the user types te, the first suggestion (s)he gets is tea. But on the iMac, the user does not get that completion... As a recovering Oracle DBA, to me the most obvious question is: Are you assuming that the result set will have any given ordering automatically imposed, or are you including an explicit order clause in your query? G ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/ok5.admin%40gmail.com This email sent to ok5.ad...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
SQLite -- same DB, different machines - different results
Hello. I've written the alfa of my first app on the Mac which works in an acceptable manner on my macbook. But when i run it on my iMac, it returns different results for the in seemingly the same conditions. The application is a dictionary. As the user types a word into the searchfield, he/she gets a completion suggestion (much like in Xcode for class or variable or method names or like in Safari for web- addresses). In my case it is the first word in the database with the prefix the user has already typed. So, for example, if a the user types te, the first suggestion (s)he gets is tea. But on the iMac, the user does not get that completion... Again, the application is completely the same. It is the release build. It has the same database. Now that I think about it, the versions if SQLite may be different, but that shouldn't really matter, for SQL syntax is pretty standard. And the tables in the database do have an autoincremental id (besides the 'rowid'). What could be the reasons for that? Thank you in advance, Timofey. By the way, if you are willing to try it, I think i could upload it somewhere... It is a russian-english-russian dictionary. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[OT] default boot device
Hello. I installed another version of MacOS X in a separate partition of my hard disc. And now whenever i start the computer, it boots from that partition by default (unless i press option to select the partition to boot from this time). How can i permanently change the primary boot device to my initial one? Sorry if this is too off-topic. Thanks in advance, Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: microsoft file formats in cocoa
TextEdit doesn't render quite a lot of things in doc files, such as footnotes, headers/footers, comments and lots of other things. I've tried to find a library that would do that, but failed. If you do find anything like that (or reinvent it for that matter ;) ), please, let me know as well. Timofey On May 17, 2009, at 10:37 AM, Thomas Davie wrote: Op 17 May 2009, om 02:02 heeft Alexander Cohen het volgende geschreven: Does anyone know of any libraries that can read microsoft formats ( xls, ppt, doc, etc, ... )? I'd rther not reinent the wheel if something is already out there. For .doc, go look at the TextEdit sources - it's in the sample code. Bob ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/ok5.admin%40gmail.com This email sent to ok5.ad...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Categories and splitting an app into logical blocks.
Hello. Suppose, I have an app that, for example, works with a database. It can write to the db, it can select things. There is a class that works with the database, a class that controls that class and a class that interacts with the gui. And, of course, there is some testing code in all the three layers. Is it a good idea to split all those classes into categories for writing, reading and testing? For example, Database (Writing), Database(Reading), Database(Testing) and so on? Or is it a silly thing to do for some reason? Thank you in advance for your replies. Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: IP detection code by country
I once used the IP-to-country database for my site. It was a free-to-download-and-use csv consisting of ip ranges and countries, to which they correspond. It can easily be used to create an sqlite database. Check out http://ip-to-country.webhosting.info. But there are no Cocoa libs for that that i know of. Timofey. On May 16, 2009, at 3:04 AM, Erg Consultant wrote: Does anyone know of some Cocoa libraries for detecting which country the machine's IP address is currently running in? Thanks. Erg ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/ok5.admin%40gmail.com This email sent to ok5.ad...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Win-MacOS porting question.
Hello. I am about to get involved in a project on porting a windows program into MacOS. The original program is written in C++ with limited use of windows-specific libraries, and its owner wants the code that will result from that project to be compilable both under Windows and MacOS (and, preferably, other platforms). We both understand, that that cross-platform code will only be, in terms of the MVC model, the Model. In that view I have two questions: Is it a good idea to port a program that way? Or is it, perhaps, better to have platform-specific code for each system? If it is a good idea, then how should we create a project in a repository so that it was usable both in Windows and in MacOS? Say, a framework for Mac and a dll for win? Is there anything i need to know before starting that? Thank you in advance, Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
C++ constructors.
Hi there.
Here is a C++ constructor that is said to work on Windows (i.e., the
guy who wrote it says it works on Win), but doesn't work on Mac. Is
there a way to fix it, except by replacing it with a copy method?
Cbyte1::Cbyte1 (Cbyte1 val) {
m_size = val.m_size;
if (m_size == 0) {
m_totalmax = 0;
b = ;
return;
}
}
The errors I get are:
/Users/dtv/Documents/XCodeBuilds/dakakugodno/dakakugodno/Mtran2/
cbyte_suggest.cpp: In function 'void Test()':
/Users/dtv/Documents/XCodeBuilds/dakakugodno/dakakugodno/Mtran2/
cbyte_suggest.cpp:25: error: no matching function for call to
'Cbyte1::Cbyte1(Cbyte1)'
/Users/dtv/Documents/XCodeBuilds/dakakugodno/dakakugodno/Mtran2/
cbyte_suggest.cpp:13: note: candidates are: Cbyte1::Cbyte1(Cbyte1)
/Users/dtv/Documents/XCodeBuilds/dakakugodno/dakakugodno/Mtran2/
cbyte_suggest.cpp:12: note: Cbyte1::Cbyte1(Cbyte1*)
/Users/dtv/Documents/XCodeBuilds/dakakugodno/dakakugodno/Mtran2/
cbyte_suggest.cpp:11: note: Cbyte1::Cbyte1(char*)
/Users/dtv/Documents/XCodeBuilds/dakakugodno/dakakugodno/Mtran2/
cbyte_suggest.cpp:10: note: Cbyte1::Cbyte1(int)
/Users/dtv/Documents/XCodeBuilds/dakakugodno/dakakugodno/Mtran2/
cbyte_suggest.cpp:25: error: initializing temporary from result of
'Cbyte1::Cbyte1(char*)'
/Users/dtv/Documents/XCodeBuilds/dakakugodno/dakakugodno/Mtran2/
cbyte_suggest.cpp:25: error: no matching function for call to
'Cbyte1::Cbyte1(Cbyte1)'
/Users/dtv/Documents/XCodeBuilds/dakakugodno/dakakugodno/Mtran2/
cbyte_suggest.cpp:13: note: candidates are: Cbyte1::Cbyte1(Cbyte1)
/Users/dtv/Documents/XCodeBuilds/dakakugodno/dakakugodno/Mtran2/
cbyte_suggest.cpp:12: note: Cbyte1::Cbyte1(Cbyte1*)
/Users/dtv/Documents/XCodeBuilds/dakakugodno/dakakugodno/Mtran2/
cbyte_suggest.cpp:11: note: Cbyte1::Cbyte1(char*)
/Users/dtv/Documents/XCodeBuilds/dakakugodno/dakakugodno/Mtran2/
cbyte_suggest.cpp:10: note: Cbyte1::Cbyte1(int)
/Users/dtv/Documents/XCodeBuilds/dakakugodno/dakakugodno/Mtran2/
cbyte_suggest.cpp:25: error: initializing temporary from result of
'Cbyte1::Cbyte1(char*)'
PS. I do my best to persuade that dude that the code badly needs
refactoring, but he is reluctant.
Thank you in advance.
Timofey Danshin.
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NSTextView delegate methods in NSTextView subclass.
Hello. I have subclassed NSTextView and I am using that subclass as a field editor for an NSTextField. On certain events in the field editor, i need to take certain actions again in the field editor, and as of now i have to use delegate methods in the TextField's delegate to call methods in the TextView, even though the messages that call those delegate methods, originate in the TextView. Is there a way to receive the notifications on those events (triggering the delegate methods) in the NSTextView subclass? The one I am particularly interested in is -controlTextDidChange; Thank you for your help in advance. Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSTableView, 2mln rows, looks bad.
Hello. I need to have a tableView with about 2 million rows, and that figure may actually be bigger. But the table looks awfully bad in that case: you get artifacts when scrolling, the text in the rows does not coincide with the alternate bluish and white stripes, and if you click on a row, you get the action from another row, not the one you see. Is it the problem of my design (i.e. i may have done anything wrong while writing that), or is it a flaw of NSTableView? Are there any workarounds? Thank you in advance for your help. Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to change the case of letters
It looks like, if you want to change the case of a particular letter
(say, all occurrences, letter a), you will have to iterate through
all the chars in your textView, check if they are as, if they are
upper or lower case, and change their case accordingly.
That is, if I understood your intentions correctly.
On May 4, 2009, at 2:38 PM, rethish wrote:
Hi,
I am using the action methods uppercaseWord: and lowercaseWord: to
change
the case of selected word.
-(IBAction)changecase:(id)sender
{
if([[fontCasePopup titleOfSelectedItem] isEqualToString:@A])
{
[textView uppercaseWord:sender];
}
else if([[fontCasePopup titleOfSelectedItem] isEqualToString:@a])
{
[textView lowercaseWord:sender];
}
}
I want to change the case of letters rather than a complete word.
And I
tried it with another action message:
[textView changeCaseOfLetter:sender];
But its not working. why is it so? Is there anything thing to be done?
Thank you in advance
rethish
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It doesn't work without the NSLog()... Why?
Hello.
It's a very funny thing. And i do hope i am not bonkers. But the
following code works fine until i delete the line with NSLog().
In the latter case it just returns an empty array. Are there any sane
reasons why that can happen?
- (NSArray *) selectWordsBeginningWith:(NSString *) s {
NSLog(@We do call SelectWordsBeginningWith); //- here is that
line.
NSString *searchString = [NSString stringWithFormat:@%...@%@, s,
@%%];
NSMutableArray *mutableRet = [[NSMutableArray alloc]init];
[self intoArray:mutableRet addItemFromTable:@english
usingStatement:readEnglish andSearchString:searchString];
[self intoArray:mutableRet addItemFromTable:@russian
usingStatement:readRussian andSearchString:searchString];
sqlite3_reset(readEnglish);
sqlite3_reset(readRussian);
NSArray *ret = [mutableRet copy];
// NSLog(@The number of items to be returned is: %i, [ret count]);
[mutableRet release];
return ret;
}
Thank you in advance,
Timofey.
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Re: It doesn't work without the NSLog()... Why?
Why copy mutableRet when you just release it anyway? Instead, just
return it with an autorelease:
I do that because i return an immutable array. I always try to return
the types i promise to return in the declaration :)
To Kyle:
I looked at the -
intoArray:addItemFromTable:usingStatement:andSearchString:, but i
failed to find anything bad in there. Here is the code:
- (void) intoArray:(NSMutableArray *)mutableRet addItemFromTable:
(NSString *)table usingStatement:(sqlite3_stmt *)statement
andSearchString:(NSString *) searchString {
sqlite3_bind_text(statement, 1, [searchString
cStringUsingEncoding:NSUTF8StringEncoding], -1, SQLITE_TRANSIENT);
while (sqlite3_step(statement) == SQLITE_ROW) {
NSString *s = [NSString stringWithUTF8String:(char *)
sqlite3_column_text(statement, 0)];
int wid = sqlite3_column_int(statement, 1);
[mutableRet addObject:[WordIdAndDatabase makeWithId:wid word:s
andDatabaseName:table]];
}
}
And here is some more detailed description of the problem. The thing
is that i have a class called Database which is responsible for
communicating with my database. The Database class is controlled by a
DatabaseManager, which is a singleton... Any object in my application
wanting to get anything from the db calls the [DatabaseManager
sharedManager] and calls the methods it needs to call.
As I may have mentioned before, the app I am writing is a dictionary.
The user interface has an NSTableView and an NSTextField. As the user
types a searchword into the textfield, the app creates new
NSOperations that select the words beginning with the chars the user
has typed, from the database, and then i show them in the table view.
Again, all the interactions with the db are executed via the
DatabaseManager.
When the user hits enter or clicks on a cell with a word in it, we
select that word with the equivalent from the db and display that in a
different window.
And the thing is that when the NSLog line we talked above is not
there, the -selectWordsBeginningWith: method works fine only until the
user presses Enter or clicks a cell, i.e. until we get another class
connect to the database.
Again, with NSLog in place, it all works fine no mater how many
translations you open...
I would be really grateful for any hints to what the cause might be.
On Apr 29, 2009, at 4:32 PM, Graham Cox wrote:
On 29/04/2009, at 10:05 PM, Тимофей Даньшин wrote:
NSArray *ret = [mutableRet copy];
// NSLog(@The number of items to be returned is: %i, [ret count]);
[mutableRet release];
return ret;
I don't see why your NSLog line should cause a problem, but your
memory management at the end of the function is wrong, so may have a
bearing on it.
Why copy mutableRet when you just release it anyway? Instead, just
return it with an autorelease:
return [mutableRet autorelease];
There is no need to copy a mutable array just so you can return it
as a non-mutable array - it is an array and its mutability is
invisible to the client of this code. As it stands you're leaking
the copy because it is never released.
--Graham
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NSOperation, Sqlite, library routine called out of sequence
Hello again.
In short, i get an error calling the same synchronized singleton
DatabaseManager from different threads.
Here is what I am actually doing. As I was writing earlier, i am
writing a dictionary application that is supposed to show translations
for words from the database. In the main window, there is a tableview
and a textfield. As a user types a word, i create a new NSOperation
that calls the [DatabaseManager sharedManager] and calls the methods
to select all the words beginning with the letters the user has typed.
And then the tableview is filled with the words so selected.
That works ok until the user presses return to see the translation of
the word he has typed. That action also calls the [DatabaseManager
sharedManager] and calls the methods for selecting the whole article
from the db. This results in the library routine called out of
sequence error in sqlite. Selecting an article from the db worked
perfectly well when it was not called after the procedure described
above.
And when, after receiving an empty dictionary article, the user begins
typing a new word in the search textfield, nothing happens with the
tableview, and sqlite3_step function calls end with the library
routine called out of sequence error.
Here are the relevant excerpts from the classes involved.
Database:
- (NSArray *) selectWordsBeginningWith:(NSString *) s {
NSString *searchString = [NSString stringWithFormat:@%...@%@, s,
@%%];
NSMutableArray *mutableRet = [self itemsFromTable:@english
usingStatement:readEnglish andSearchString:searchString];
NSMutableArray *arr2 = [self itemsFromTable:@russian
usingStatement:readRussian andSearchString:searchString];
[mutableRet addObjectsFromArray: arr2];
sqlite3_reset(readEnglish);
sqlite3_reset(readRussian);
NSArray *ret = [[mutableRet copy] autorelease];
return ret;
}
- (NSDictionary *) selectArticleWithId: (WordIdAndDatabase *)
articleId {
sqlite3_stmt *currentOne;
if ([articleId.datbaseName isEqualToString:@english]) {
currentOne = selectArticleEnglishToRussian;
} else {
currentOne = selectArticleRussianToEnglish;
}
NSString *originalWord = articleId.word;
sqlite3_bind_int(currentOne, 1, articleId.wordId);
NSMutableArray *translations = [[NSMutableArray alloc] init];
while (sqlite3_step(currentOne) == SQLITE_ROW) {
[translations addObject:[NSString stringWithUTF8String:(char *)
sqlite3_column_text(currentOne, 0)]];
}
NSLog(@There may be an error in the db things: %s,
sqlite3_errmsg(database));
NSDictionary *ret = [NSDictionary
dictionaryWithObjectsAndKeys:originalWord, @original, translations,
@translations, nil];
[translations release];
sqlite3_reset(currentOne);
return ret;
}
- (NSMutableArray *) itemsFromTable:(NSString *)table usingStatement:
(sqlite3_stmt *)statement andSearchString:(NSString *) searchString {
NSMutableArray *mutableRet = [[[NSMutableArray alloc] init]
autorelease];
sqlite3_bind_text(statement, 1, [searchString
cStringUsingEncoding:NSUTF8StringEncoding], -1, SQLITE_TRANSIENT);
while (sqlite3_step(statement) == SQLITE_ROW) {
NSString *s = [NSString stringWithUTF8String:(char *)
sqlite3_column_text(statement, 0)];
int wid = sqlite3_column_int(statement, 1);
[mutableRet addObject:[WordIdAndDatabase makeWithId:wid word:s
andDatabaseName:table]];
}
NSLog(@There MIGHT BE an error in getting things from the db: %s,
sqlite3_errmsg(database));
return mutableRet;
}
Thank you for your attention.
Timofey.
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Re: NSOperation, Sqlite, library routine called out of sequence
The DatabaseManager is synchronized. If any class is to communicate
with the db, it does that through the DatabaseManager. The latter just
provides proxy methods. I think, that should result in classes getting
the instance of the DatabaseManager only when it is no longer (or not
yet) used by other classes.
+ (DatabaseManager*)sharedManager {
@synchronized(self) {
if (sharedDatabaseManager == nil) {
[[self alloc] init]; // assignment not done here
}
}
return sharedDatabaseManager;
}
+ (id)allocWithZone:(NSZone *)zone {
@synchronized(self) {
if (sharedDatabaseManager == nil) {
sharedDatabaseManager = [super allocWithZone:zone];
[sharedDatabaseManager initDb];
return sharedDatabaseManager;
}
}
return nil;
}
On Apr 29, 2009, at 10:52 PM, Greg Guerin wrote:
Тимофей Даньшин wrote:
In short, i get an error calling the same synchronized singleton
DatabaseManager from different threads.
Are you sure your database accesses are synchronized (i.e. thread-
safe)? I see nothing in the posted code that uses @synchronized or
any other locking mechanism.
-- GG
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Re: NSOperation, Sqlite, library routine called out of sequence
Hm... That really works! Thanks a lot. Putting the bodies of those methods in @synchronized(self) blocks helped Thanks a lot again. On Apr 29, 2009, at 11:33 PM, Greg Guerin wrote: Тимофей Даньшин wrote: The DatabaseManager is synchronized. If any class is to communicate with the db, it does that through the DatabaseManager. The latter just provides proxy methods. I think, that should result in classes getting the instance of the DatabaseManager only when it is no longer (or not yet) used by other classes. But that does nothing to prevent multiple threads from performing additional concurrent actions on the database. It's not enough to just control access to the shared singleton, if the actions performed by the singleton aren't also thread-safe. All the queries, updates, etc. need thread-safety, too. -- GG ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/ok5.admin%40gmail.com This email sent to ok5.ad...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Problem: sqlite3 and .sqlite-journal files
Hello. As I wrote earlier, in my application a user can open a database or create a new one, and then perform some tasks, the results of which are stored in the said database. However, a strange thing happens: when the user _creates_ a database, everything is stored as hoped. But when the user _opens_ an existing database, nothing is stored in it, and a new file gets created, which name coincides with the name of the database the user opened with - journal in the extension. (I did read about that on the sqlite3 site, but it didn't seem to help). The most puzzling thing about this is that when a database gets created, it is first created with a different name (from the one the user wants it to have), then my app, specifically, a class called DatabaseCreator, creates the necessary tables, populates them with initial data and closes the database. After that that, if a database with the name specified by the user for the new one already exists, it is moved to trash, and the newly created db with the temporary name is renamed to the name given by the user. And after that the class called DatabaseManager, which is a singleton, opens that database the same way it would if the user wanted to open a pre-existing database. I am continuing my search for the possible reason for such a strange behavour, but i would be very grateful for any thoughts in that regard. Thank you in advance. Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
static vs non-static. Recommendation needed.
Hello. A foreword: In my application I need to allow the user to create a database. So i display a dialogue panel, collect all the necessary information about the db to be created and create a DatabaseInfo object. Then i pass that DatabaseInfo object to the DatabaseCreator to actually create the needed database. I want the DatabaseCreator to return an sqlite3 pointer. And here is my dilemma: As i don't need that DatabaseCreator to exist for a long time i thought it better to make it completely static. Sorry if the terminology is wrong, but what i mean is: it cannot be initialized, it has no instance variables, it has no instance methods, all it has is one public class method: + (sqlite3 *) createDbaseWithDatabaseInfo: (DatabaseInfo *) dbInfo; However, that proves not very convenient, as i need to break up the logic of that class into individual steps and I end up passing a lot of things from one method to another. Is it all right to init an object just to dealloc it in the next line (or create an autorelease object using a convenience method for that matter)? I mean, if i made it non-static, i would have something like this in the class that uses it: DatabaseCreator *dbc = [DatabaseCreator creatorWithDBInfo: dbInfo]; sqlite3* database = [dbc database]; // and dbc would no longer be used. Or is it better to put up with the inconveniences of having that thing static? Thank you in advance, Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: static vs non-static. Recommendation needed.
But I might suggest you've omitted a couple of options. Would it be, for example, particularly evil if your DatabaseInfo object include a createDatabase method? Well, not exactly, i suppose. The point is that i create DatabaseInfo either before creating a new database or after opening an existing one. In both cases the object is used to show the user some general information about the currently open db, and in the former case, it is also used to actually create the database. I think i'll stick to Quincey Morris's suggestion. And again thank you all for the help. Timofey. On Apr 13, 2009, at 3:59 PM, Gregory Weston wrote: ok5.admin wrote: Hello. A foreword: In my application I need to allow the user to create a database. So i display a dialogue panel, collect all the necessary information about the db to be created and create a DatabaseInfo object. Then i pass that DatabaseInfo object to the DatabaseCreator to actually create the needed database. I want the DatabaseCreator to return an sqlite3 pointer. ... Is it all right to init an object just to dealloc it in the next line (or create an autorelease object using a convenience method for that matter)? I mean, if i made it non-static, i would have something like this in the class that uses it: DatabaseCreator *dbc = [DatabaseCreator creatorWithDBInfo: dbInfo]; sqlite3* database = [dbc database]; // and dbc would no longer be used. Or is it better to put up with the inconveniences of having that thing static? It's better to follow the practice that you'll find most maintainable. But I might suggest you've omitted a couple of options. Would it be, for example, particularly evil if your DatabaseInfo object include a createDatabase method? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/ok5.admin%40gmail.com This email sent to ok5.ad...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
SQLite3 and Unicode Strings - Problem
Hello. In my application, I have the need to store strings with non-latin characters in a SQLite database. But when I insert them, they become corrupt. When i bind the string to the prepared statement, i do make sure it is in UTF-8: sqlite3_bind_text(sentence_insert_statement, 1, [string UTF8String], -1, SQLITE_TRANSIENT); //Where string is the string i am trying to insert. I thought that might be the problem of SQLite itself, but when I make an sql file in the UTF-8 encoding, like 'insert into sentences (sentence) values (привет);' and perform .read (the name of my sql file), it works absolutely fine. Am I missing something important when inserting strings to my db programmatically? I really hope you can help. Thank you in advance, Timofey.___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Fwd: SQLite and Unicode
On Apr 7, 2009, at 8:14 PM, Keary Suska wrote: Are you properly encoding your C strings with -cStringUsingEncoding:? Yes, I think so. At present, I am using the -UTF8String method, but I also tried the - cStringUsingEncoding: to no avail. Here is the line that binds the string to the prepared statement: sqlite3_bind_text(sentence_insert_statement, 1, [string UTF8String], -1, SQLITE_TRANSIENT); and I translate it back into NSString by [string stringWithUTF8String], although I also tried the -stringWithCString: encoding: method. The characters _are_ mangled. And the funny thing is that i am able to add non-latin strings to it by reading sql files from SQLite in Terminal... Best regards, Timofey. On Apr 6, 2009, at 2:31 PM, Тимофей Даньшин wrote: When I insert non-latin strings into my SQLite3 database, they turn into some weird sets of characters (as I select those strings later in Terminal), and the fields, which contain those strings, become unusable by my application. I googled for it for quite a bit, but everywhere it says that SQLite 3 supports utf8, so there is no advice on what should be done in such situations. What can I do about it? Are you properly encoding your C strings with - cStringUsingEncoding:? If so, when you query the column (and properly translate the C string to NSString using - stringWithCString:encoding:), are the characters still mangled? HTH, Keary Suska Esoteritech, Inc. Demystifying technology for your home or business ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: SQLite and Unicode
How do you define string (i.e. how is its value set)? There can be
an issue with UTF8 constant strings. Have you called -
canBeConvertedToEncoding: to make sure string is utf-8 compatible?
To be on the safe side, i make a local copy of the method's input
string. And the -canBeConvertedToEncoding: returns yes...
I am really at a loss. I open the db with sqlite3_open([path
UTF8String], db), which as i am lead to understand opens it in the
UTF-8 compatible mode. May there be anything wrong with the way i
create prepared statements? Or anything else?
Here is the method that writes to the db:
- (int) writeToDB:(NSString *)string {
if (!dbIsOpen) {
[self openDatabase];
}
if (sentence_insert_statement == nil) {
static char *sql = INSERT INTO sentences (sentence, slength)
VALUES(?, ?);
if (sqlite3_prepare_v2(db, sql, -1,
sentence_insert_statement, NULL) != SQLITE_OK) {
NSLog(@Error: failed to prepare statement with message
'%s'., sqlite3_errmsg(db));
}
}
NSString *string2 = [string copy];
NSLog(@The string can be converted to utf: %i, [string2
canBeConvertedToEncoding:NSUTF8StringEncoding]);
const char *cString = [string2 UTF8String];
sqlite3_bind_text(sentence_insert_statement, 1, cString, -1,
SQLITE_TRANSIENT);
sqlite3_bind_int(sentence_insert_statement, 2, string.length);
int success = sqlite3_step(sentence_insert_statement);
[string2 release];
sqlite3_reset(sentence_insert_statement);
if (success == SQLITE_DONE) {
return sqlite3_last_insert_rowid(db);
}
NSLog(@Success is %d, sqlite_ok is %d, success, SQLITE_OK);
NSLog(@Error: failed to insert sentence with message '%s'.,
sqlite3_errmsg(db));
return 0;
}
I read about SQLite in Python, that one should not pass null-
terminated strings to insert statements, or there will be problems
with non-latin chars. Can that be the issue here? How can i chop off
the NULL-char off the cString just to give it a try?
On Apr 7, 2009, at 9:12 PM, Keary Suska wrote:
On Apr 7, 2009, at 10:39 AM, Тимофей Даньшин wrote:
On Apr 7, 2009, at 8:14 PM, Keary Suska wrote:
Are you properly encoding your C strings with -
cStringUsingEncoding:?
Yes, I think so.
At present, I am using the -UTF8String method, but I also tried the
-cStringUsingEncoding: to no avail.
Here is the line that binds the string to the prepared statement:
sqlite3_bind_text(sentence_insert_statement, 1, [string
UTF8String], -1, SQLITE_TRANSIENT);
and I translate it back into NSString by [string
stringWithUTF8String], although I also tried the -
stringWithCString: encoding: method. The characters _are_ mangled.
And the funny thing is that i am able to add non-latin strings to
it by reading sql files from SQLite in Terminal...
How do you define string (i.e. how is its value set)? There can be
an issue with UTF8 constant strings. Have you called -
canBeConvertedToEncoding: to make sure string is utf-8 compatible?
Best,
Keary Suska
Esoteritech, Inc.
Demystifying technology for your home or business
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Re: SQLite and Unicode
I am deeply and sincerely ashamed of myself. The point is that i get that input string by splitting the string in my textView ([[myTextView textStorage] string]) into sentences. During that procedure i check every char if it is a sentence terminator (?! or linebreak). And i do that by using the -characterAtIndex: method. And the thing is that that method returns wrong characters if it deals with unicode ones. Thanks Keary Suska for pointing that out to me. I will now have to find another unicode-safe way to split the string into sentences. Thanks again for all your help. And if you could give me a hint on how to safely get unicode chars at a given position of a string, I'd be even more grateful :) Timofey. On Apr 7, 2009, at 10:23 PM, Greg Guerin wrote: Тимофей Даньшин wrote: To be on the safe side, i make a local copy of the method's input string. Maybe the lifetime of the local copy is less than what SQLite needs. I see in your code that you're releasing the copy, but is SQLite asynchronous and still needing the buffer to exist at that point? If you don't use a copy of the arg string, but the original arg itself, does that change anything? If you intentionally leak the copy, by not releasing it, does that change anything? How about autoreleasing the copy, which defers the actual release until later? I'm not suggesting that any of these are fixes, just different things to test and observe, that may lead to more clues. -- GG ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/ok5.admin%40gmail.com This email sent to ok5.ad...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
SQLite and Unicode
Hello. When I insert non-latin strings into my SQLite3 database, they turn into some weird sets of characters (as I select those strings later in Terminal), and the fields, which contain those strings, become unusable by my application. I googled for it for quite a bit, but everywhere it says that SQLite 3 supports utf8, so there is no advice on what should be done in such situations. What can I do about it? Thank you in advance. Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Double Clicks in an NSTextView.
Hello. I would like to be able to intercept double clicks on the text in an NSTextView even if the text is not a link and is not in an NSTextAttachmentCell. I did try to do this by implementing the textView: willChangeSelectionFromCharacterRange: toCharacterRange and comparing the initial and the proposed ranges and the time between the current call to this method and the previous one. But that doesn't work quite well, for i often get double clicks when i select the text by holding shift and an arrow key. I know, that the method for intercepting double clicks is private. Is there any working work around for that? Thank you for your replies in advance. Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Absolutely Mysterious Compilation Error
Hello. I have a class called TableMaker. And i import its header in the header of another class. The funny thing is that every once in a while the app fails to build, XCode pointing to the line TableMaker *tableMaker; in that other header file as the cause of the failure. If i comment out that line, build the project, and then uncomment it again, the project builds normally. But after a while the whole situation repeats. What could be the cause? Thank you in advance for your replies. Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Absolutely Mysterious Compilation Error
Yes, that cleared it. Thank you a lot. Could you, please, tell me, where i can read more about circular includes and what the ways of dealing with them are? It seems rather an odd thing after Java. On Mar 30, 2009, at 3:25 AM, Stephen J. Butler wrote: 2009/3/29 Тимофей Даньшин ok5.ad...@gmail.com: It says error: syntax error before 'TableMaker' Could be a circular include problem. Try this: In OtherClass.h: - remove the #import TableMaker.h - add @class TableMaker; In OtherClass.m: - add #import TableMaker.h ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
KVC-KVO compliance - noob questions
Hi. I'm new to the field of KVC/KVO, but I want to master it. Are there any standard tests to check whether my objects are KVC/KVO compliant? And are there, perhaps, simpler and less profound explanations of that subject, than the ones on the Apple site? Thank you for your attention and replies. Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Custom windows -- just curious
Hi. Does anybody know how to make totally custom windows, such as the control window in DVD Player or the minimized iTunes window? As i said in the subject -- I am just curious. Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Send events to AppleScript
On Mar 21, 2009, at 5:38 AM, has wrote: On Mar 21, 2009, at 1:06 AM, Тимофей Даньшин wrote: On Mar 21, 2009, at 3:34 AM, has wrote: Is it at all possible to have an application send actions to a particular AppleScript script, Yes. See NSAppleScript/OSAKit/Carbon OSA APIs. There's a sample project in the objc-appscript repository, CallAppleScriptHandler, that provides a simple demonstration of calling script handlers from ObjC, using appscript's AEM APIs to simplify the process of converting Cocoa objects to/from NSAppleEventDescriptors. Sorry for misleading you, i rather meant receive events from third party applications. If you want to run an AppleScript as a standalone application and send it events from other applications, save your script in Script Editor as a 'stay open' application. As for sending events from Cocoa(?) apps to this applet; there's a couple ways you could arrange that, but you'd need to provide more details on what the setup needs to do if you want specific advice. Or do you mean that you want to write a Cocoa application that forwards some/all incoming events to an embedded AppleScript? In that case you want either NSAppleEventManager, or possibly Cocoa Scripting, to handle incoming events, and NSAppleScript or OSAKit to host the script, and write some glue code to go inbetween. Well, I'm writing a translation memory application, which is a program that grabs sentence by sentence from a given text (that needs translating), asks the user to translate that sentence and stores the translation and the original in a database. If the user comes across the same sentence again in the future, he or she will not need to translate it again. I thought i would take the TextEdit app as the text editing part of my project, but as I wrote the database management and the search parts, it turned out that TextEdit is not capable of correctly interpreting word files or RTF's (ie it ignores footnotes, headers/footers and a lot of other stuff). That is why I am trying to find out how i can communicate with Word or Pages. As far as what I would want from an AppleScript (if I were to use AppleScript) is to be able to receive notifications from Word when, for example, the user has hit a certain key combination, to know where the insertion point (or selection) is in Word and to receive notifications when it moves, to be notified when a user is trying to edit something and prevent him/her from doing so if that part of the text should not be edited. Receiving those notifications, that script would just redirect them to my application and receive responses to them and redirect them to Word. In case of scripting bridge, the logic I described for AppleScript would be in my application. But having read what I found and had time to read, I'm not quite sure yet I can be notified of the things going on in another application (such as Word, for example). or set that script as a delegate of that application Depends exactly what you mean by 'delegation'. The OSA API provides a whole bunch of arcane selectors and callbacks for two- way intra-process integration between application and scripts, but whether it's appropriate/how to use it will depend on exactly what you're trying to achieve. By delegation I mean the form of delegation that is present in Objective-C, when one can register one's object with another object as it's delegate and receive messages from in on certain occasions, such as textViewDidChangeSelection: That's pretty much what the OSA API was designed to do [1] - allow a C/C++/ObjC application to load a script and invoke its handlers (what AppleScripters call 'attachability'). See Folder actions, Mail rule scripts, etc. Satimage Smile, for example, provides a great demonstration of just how far you can go with this sort of thing. HTH has [1] With the caveat that the OSA API is somewhat over-complicated, under-documented, lame in parts, and only really practical for AppleScript despite being theoretically language agnostic. -- Control AppleScriptable applications from Python, Ruby and ObjC: http://appscript.sourceforge.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Send events to AppleScript
As far as TextEdit is concerned, i thought of taking its source and modifying it to my needs, and actually create a single application, not a tandem of two or more. I am even beginning to think of taking the OppenOffice as the host for my additional functionality, but OO doesn't look at all stable. Are there any libraries out there that could access all (or at least the most common) elements of .doc, docx and RTF documents besides NSDocument? It doesn't really matter if they can render page layout correctly, the important thing is that they could access and modify those elements. On Mar 21, 2009, at 7:28 PM, has wrote: On Mar 21, 2009, at 12:09 PM, Тимофей Даньшин wrote: Well, I'm writing a translation memory application, which is a program that grabs sentence by sentence from a given text (that needs translating), asks the user to translate that sentence and stores the translation and the original in a database. If the user comes across the same sentence again in the future, he or she will not need to translate it again. I thought i would take the TextEdit app as the text editing part of my project, but as I wrote the database management and the search parts, it turned out that TextEdit is not capable of correctly interpreting word files or RTF's (ie it ignores footnotes, headers/ footers and a lot of other stuff). That is why I am trying to find out how i can communicate with Word or Pages. As far as what I would want from an AppleScript (if I were to use AppleScript) is to be able to receive notifications from Word when, for example, the user has hit a certain key combination, to know where the insertion point (or selection) is in Word and to receive notifications when it moves, to be notified when a user is trying to edit something and prevent him/her from doing so if that part of the text should not be edited. Receiving those notifications, that script would just redirect them to my application and receive responses to them and redirect them to Word. It is rare to find applications that provide notifications, and almost unheard of for them to provide notifications of minor events such as text edits. You certainly won't get the sort of notifications you describe from TextEdit, Word or Pages. ISTR a third-party tool that allows you to attach AppleScripts to the GUI objects of another application, but that sort of thing is inherently hackish, prone to breakage, and liable not to go down too well with increasingly security conscious software and users. I suspect your best bet would be to poll the application, bearing in mind that might create its own issues (e.g. performance/responsiveness). HTH has -- Control AppleScriptable applications from Python, Ruby and ObjC: http://appscript.sourceforge.net ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Send events to AppleScript
Hello. Is it at all possible to have an application send actions to a particular AppleScript script, or set that script as a delegate of that application or to have an AppleScript as a means of communication between two applications (one of which is mine, and the other isn't)? Thank you in advance for your replies. Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Xcode GoogleCode.
Hello. Are there any instructions out there for creating new Xcode projects in an existing SVN repository on Google Code from within Xcode? For the only way i could find was to create an empty project in Xcode, then commit it to the repository from a command line and then create a new project in Xcode from that repository. But that isn't very neat, is it? Thank you for your attention, Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
- (IBAction) executes normally, but then crushes.
Hello.
I have got a method that is an IBAction, and it works quite all right,
it reaches its final curly bracket, but then the whole application
crushes for some reason. But the words [Session started... etc] in the
log appear about three lines before the phrase Finished adding to the
DB, which is written by the last line of code in that method. I.e.,
if i feed the following to my app: It first empties the cell's title
and
asks it to draw., the last lines of the log look as follows:
2009-03-19 23:47:28.204 Untitled[16510:10b] The splitString is 'dra'
[Session started at 2009-03-19 23:47:28 +0300.]
2009-03-19 23:47:28.207 Untitled[16510:10b] The splitString is 'raw'
2009-03-19 23:47:28.211 Untitled[16510:10b] The splitString is 'aw.'
2009-03-19 23:47:28.214 Untitled[16510:10b] Finished Adding to DB;
Loading program into debugger…
GNU gdb 6.3.50-20050815 (Apple version gdb-962) (Sat Jul 26 08:14:40
UTC 2008)
What can possibly go wrong there?
The idea behind this method is to have a string in the textView split
by sentences (which is done by the SentenceSplitter, which was tested
and works well), then write each sentence to the database, split that
sentence into sequences of three chars each (by ThreeCharSplitter,
which also was tested), and write them into a different table in the
same db. As i said earlier, everything works fine, everything gets
added to the db as expected. The only unexpected thing is the crush at
the end.
Here is the method:
- (IBAction) dbit: (id) sender {
SentenceSplitter *ss = [[SentenceSplitter alloc] initWithString:
[[tview textStorage] string]];
DB *db = [[DB alloc] initWithPath:@somePath];
NSString *sentence;
NSString *splitString;
ThreeCharSplitter *sp;
for (int i = 0; i [ss length]; i++) {
@try {
sentence = [ss nextSentence];
if (sentence == nil || sentence.length == 0) {
continue;
}
sp = [[ThreeCharSplitter alloc]
initWithString:sentence];
int a = [db writeToDB: sentence];
NSLog(@Last id is %d, sentence: %@, a, sentence);
for (int i = 0; i sp.length; i++) {
splitString = [sp next];
NSLog(@The splitString is '%@', splitString);
if ( a != 0 ) {
[db writeCharsToDB:splitString
withSentenceId:a];
}
}
[sp release];
} @catch (NSException *e) {
NSLog(@EXCEPTION: %@, e);
}
}
[db release];
[ss release];
NSLog (@Finished Adding to DB;);
}
Thank you for your attention.___
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Re: - (IBAction) executes normally, but then crushes.
Could you, please, expand on that? Am I using too much memory? Am I
not releasing objects correctly? I am really at my wit's end...
On Mar 20, 2009, at 12:12 AM, mm w wrote:
memory
2009/3/19 Тимофей Даньшин ok5.ad...@gmail.com:
Hello.
I have got a method that is an IBAction, and it works quite all
right, it
reaches its final curly bracket, but then the whole application
crushes for
some reason. But the words [Session started... etc] in the log
appear about
three lines before the phrase Finished adding to the DB, which is
written
by the last line of code in that method. I.e., if i feed the
following to my
app: It first empties the cell's title and
asks it to draw., the last lines of the log look as follows:
2009-03-19 23:47:28.204 Untitled[16510:10b] The splitString is 'dra'
[Session started at 2009-03-19 23:47:28 +0300.]
2009-03-19 23:47:28.207 Untitled[16510:10b] The splitString is 'raw'
2009-03-19 23:47:28.211 Untitled[16510:10b] The splitString is 'aw.'
2009-03-19 23:47:28.214 Untitled[16510:10b] Finished Adding to DB;
Loading program into debugger…
GNU gdb 6.3.50-20050815 (Apple version gdb-962) (Sat Jul 26
08:14:40 UTC
2008)
What can possibly go wrong there?
The idea behind this method is to have a string in the textView
split by
sentences (which is done by the SentenceSplitter, which was tested
and works
well), then write each sentence to the database, split that
sentence into
sequences of three chars each (by ThreeCharSplitter, which also was
tested),
and write them into a different table in the same db. As i said
earlier,
everything works fine, everything gets added to the db as expected.
The only
unexpected thing is the crush at the end.
Here is the method:
- (IBAction) dbit: (id) sender {
SentenceSplitter *ss = [[SentenceSplitter alloc]
initWithString:[[tview textStorage] string]];
DB *db = [[DB alloc] initWithPath:@somePath];
NSString *sentence;
NSString *splitString;
ThreeCharSplitter *sp;
for (int i = 0; i [ss length]; i++) {
@try {
sentence = [ss nextSentence];
if (sentence == nil || sentence.length == 0) {
continue;
}
sp = [[ThreeCharSplitter alloc]
initWithString:sentence];
int a = [db writeToDB: sentence];
NSLog(@Last id is %d, sentence: %@, a,
sentence);
for (int i = 0; i sp.length; i++) {
splitString = [sp next];
NSLog(@The splitString is '%@',
splitString);
if ( a != 0 ) {
[db writeCharsToDB:splitString
withSentenceId:a];
}
}
[sp release];
} @catch (NSException *e) {
NSLog(@EXCEPTION: %@, e);
}
}
[db release];
[ss release];
NSLog (@Finished Adding to DB;);
}
Thank you for your
attention.___
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--
-mmw
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Re: - (IBAction) executes normally, but then crushes.
Hello again. Here is what is says in the debugger: 0 objc_msgSend 1 NSPopAutoReleasePool 2 -[NSApplication run] 3 NSApplicationMain 4 main Here is the stacktrace with the 0th line selected. 0x91edd670 + mov0x8(%esp),%ecx 0x91edd674 +0004 mov0x4(%esp),%eax 0x91edd678 +0008 cmp$0xfffeb010,%ecx 0x91edd67e +0014 je 0x91edd6fb objc_msgSend+139 0x91edd680 +0016 test %eax,%eax 0x91edd682 +0018 je 0x91edd6e0 objc_msgSend+112 0x91edd684 +0020 mov0x0(%eax),%edx 0x91edd687 +0023 push %edi 0x91edd688 +0024 mov0x20(%edx),%edi // The line with the red arrow 0x91edd68b +0027 push %esi 0x91edd68c +0028 mov0x0(%edi),%esi 0x91edd68f +0031 lea0x8(%edi),%edi 0x91edd692 +0034 mov%ecx,%edx 0x91edd694 +0036 shr$0x2,%edx 0x91edd697 +0039 and%esi,%edx 0x91edd699 +0041 mov(%edi,%edx,4),%eax By the way, are there any manuals on reading these stacktraces? On Mar 20, 2009, at 1:36 AM, Shawn Erickson wrote: 2009/3/19 Тимофей Даньшин ok5.ad...@gmail.com: 2009-03-19 23:47:28.204 Untitled[16510:10b] The splitString is 'dra' [Session started at 2009-03-19 23:47:28 +0300.] 2009-03-19 23:47:28.207 Untitled[16510:10b] The splitString is 'raw' 2009-03-19 23:47:28.211 Untitled[16510:10b] The splitString is 'aw.' 2009-03-19 23:47:28.214 Untitled[16510:10b] Finished Adding to DB; Loading program into debugger... GNU gdb 6.3.50-20050815 (Apple version gdb-962) (Sat Jul 26 08:14:40 UTC 2008) What can possibly go wrong there? Can you outline how it crashed? The backtrace for the thread that crashed, the type of crash, etc. If you use the debugger you should be able to tell the code pathway involved in the crash... (likely best to launch the application in the debugger and then cause the failure you are seeing). -Shawn ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
SearchKit quiestion.
Hi all.
In my application I have to search for strings closest matching a
given string. So, for example, if the given string is Hello. Would
you like some oranges, I need to find Hello. Would you like some
lemons or Hello. Would you want some oranges (if they are in the
database), and not just any phrase that contains the word oranges or
would or hello, etc.
For this purpose I tried to use the SearchKit, and tried to filter out
the strings that were below a certain relevancy threshold and compare
the remaining ones to the given string using some other methods.
However, it turns out, that the bigger the database with the strings
gets, the more irrelevant strings i receive, and the whole search
process becomes quite slow.
And my question is, am I right in thinking that the SearchKit may not
be the solution that I want and I will have to write my own indexing
engine, or is it just that I am not using it right?
Here is how I create the index (the code was almost entirely taken
from a code example):
- (void) newIndexInFile {
NSURL * url = [NSURL fileURLWithPath: path];
NSString * name = @SomeName;
if ([name length] == 0) name = nil;
SKIndexType type = kSKIndexInvertedVector;
NSNumber * minTermLength = [NSNumber numberWithInt: (int) 3];
NSSet * stopwords = [NSSet setWithObjects:
@all,
@and,
@its,
@it's,
@the,
nil
];
NSDictionary * properties =
[NSDictionary dictionaryWithObjectsAndKeys:
@, @kSKStartTermChars,
@-...@.', @kSKTermChars,
@, @kSKEndTermChars,
minTermLength, @kSKMinTermLength,
stopwords, @kSKStopWords,
nil
];
skIndex = SKIndexCreateWithURL(
(CFURLRef)
url,
(CFStringRef) name,
(SKIndexType) type,
(CFDictionaryRef) properties
);
if (!skIndex) {
NSLog(@SKIndex doesnt exist right after the creation);
}
}
Thank you for your attention.
Timofey.
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NSMutableDictionary drives me mad.
Hello.
I am writing a method for searching for the longest common substring.
The idea is to store the pieces of that LCS in an NSMutableDictionary
with TMIntWrappers as keys and NSMutableStrings as values.
Now, TMIntWrapper is the class i created for wrapping ints into
objects. It stores an int, gives access to it via the .value property,
adopts the NSCopying protocol and implements the -(BOOL) isEqual: (id)
object method.
The logic is, if the dictionary already has a value for a given key,
the new value should be appended to the current value, if the
dictionary doesn't have any value for that key yet, a new
NSMutableString is created and stored in that dictionary.
But I just cannot understand why, within one and the same cycle, some
values get appended, and some are stored with seemingly different
TMIntWrapper keys with the same value (even though the isEqual method
returns YES if the int values of two int wrappers are equal).
Here is the method in question:
- (void) addToAddedCharAtPosition:(int)charPosition withKey:
(TMIntWrapper *)key {
NSLog
(@___
);
NSLog (@The key is: %@, key);
NSLog (@ The object for the key is: %@, [addedToDbString
objectForKey:key]);
if ([addedToDbString objectForKey:key] == nil) {
NSMutableString *ms = [[NSMutableString alloc]initWithString:[inText
substringWithRange:NSMakeRange(charPosition-1, 1)]];
NSLog(@ The ms string is: %@, ms);
[addedToDbString setObject:[ms mutableCopy] forKey:[key copy]];
NSLog(@ We are trying to add this: %@, [inText
substringWithRange:NSMakeRange(charPosition-1, 1)]);
NSLog (@AND NOW: The object for the key is: %@, [addedToDbString
objectForKey:key]);
return;
}
NSLog (@We are trying to add this: %@,[inText
substringWithRange:NSMakeRange(charPosition-1, 1)]);
[[addedToDbString objectForKey:key] appendString:[inText
substringWithRange:NSMakeRange(charPosition-1, 1)]];
}
And here is what those NSLogs generate.
2009-03-10 21:09:48.871 SQL doc[13532:10b]
___
2009-03-10 21:09:48.872 SQL doc[13532:10b] The
key is: 0
2009-03-10 21:09:48.872 SQL doc[13532:10b] The object for the
key is: (null)
2009-03-10 21:09:48.873 SQL doc[13532:10b] The ms
string is: x
2009-03-10 21:09:48.874 SQL doc[13532:10b] We are trying to
add this: x
2009-03-10 21:09:48.875 SQL doc[13532:10b] AND NOW: The object for the
key is: (null)
2009-03-10 21:09:48.875 SQL doc[13532:10b]
___
2009-03-10 21:09:48.877 SQL doc[13532:10b] The
key is: 0
2009-03-10 21:09:48.877 SQL doc[13532:10b] The object for the
key is: (null)
2009-03-10 21:09:48.879 SQL doc[13532:10b] The ms
string is: e
2009-03-10 21:09:48.880 SQL doc[13532:10b] We are trying to
add this: e
2009-03-10 21:09:48.880 SQL doc[13532:10b] AND NOW: The object for the
key is: e
2009-03-10 21:09:48.880 SQL doc[13532:10b]
___
Please help me...
___
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Exel and PowerPoint
Hello. Are there any abstractions in Cocoa to open and handle Exel and PowerPoint files? Thank you. Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Spotlight
Hi all! I have a potentially large database with attributedStrings. Is there a way to somehow get the Spotllight find the closest matches to another string, or do i have to write the search engine myself? Thank you. Timofey. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
setSelectedRange doesn't work properly...
Hello. In my NSDocument-based application I use a number of my own attributes to the NSTextStorage in that document. The funny thing is when i set the cursor to the desired point and begin typing, one of those attributes gets broken, i.e. the range containing the text that i type in doesn't have that attribute. However, if i move the cursor from that position and back to it using the arrow keys, the text typed in has that attribute. Another funny thing is that it happens only to one of two custom attributes that are set for that position in the text. Am I doing something wrongly? How can I fix/work around it? Thank you. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
