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https://github.com/aharren/LibComponentLogging-Core

A small logging library for Objective-C applications (Mac OS X and iPhone OS/iOS) which provides conditional logging based on log levels and log components. Additionally, different logging strategies can be used, e.g. writing log messages to a file or sending them to the system log, while using the same logging interface.
https://github.com/aharren/LibComponentLogging-Core

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A small logging library for Objective-C applications (Mac OS X and iPhone OS/iOS) which provides conditional logging based on log levels and log components. Additionally, different logging strategies can be used, e.g. writing log messages to a file or sending them to the system log, while using the same logging interface.

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README 

        

# LibComponentLogging-Core



[http://0xc0.de/LibComponentLogging](http://0xc0.de/LibComponentLogging)    

[http://github.com/aharren/LibComponentLogging-Core](http://github.com/aharren/LibComponentLogging-Core)



## Overview



LibComponentLogging is a small logging library for Objective-C on Mac OS X and

iOS which provides log levels, log components, and pluggable logging back-ends,

e.g. writing log messages to a file, or sending them to the system log.



LibComponentLogging is available under the terms of the MIT license.



This Git repository contains the library's Core part.



## Example



After configuring a logging back-end, e.g. the LogFile back-end, you can simply

start logging (to the log file) by using LibComponentLogging's standard logging

macro lcl_log(...), e.g.



    lcl_log(lcl_cMyComponent, lcl_vError, @"message ...");



The LogFile logger uses the format



     



and produces the output



    2009-02-01 12:38:32.796 4964:10b D component1:main.m:28:-[Class method] Message

    2009-02-01 12:38:32.798 4964:10b D component2:main.m:32:-[Class method] Message

    2009-02-01 12:38:32.799 4964:10b D component3:main.m:36:-[Class method] Message



See [http://0xc0.de/LibComponentLogging](http://0xc0.de/LibComponentLogging)

for more information about LibComponentLogging and more examples.



## Installation



Download the files of the library Core and a logging back-end, e.g. the

LogFile logger, from their repositories on GitHub:



* [Library Core](http://github.com/aharren/LibComponentLogging-Core/)



* [LogFile Logger](http://github.com/aharren/LibComponentLogging-LogFile/)



* [SystemLog Logger](http://github.com/aharren/LibComponentLogging-SystemLog/)



* [NSLog Logger](http://github.com/aharren/LibComponentLogging-NSLog/)



* [NSLogger Logger](http://github.com/aharren/LibComponentLogging-NSLogger/)



Extract the files and copy the extracted files to your application's source

directory.



Open Xcode and add all files of the library to your application's project.

Xcode will automatically add the library's implementation files to your

project's target.



Create a lcl_config_logger.h file and set up the logger, e.g. set the maximum

file size and the name of the log file for the LogFile logger.



Create a lcl_config_extensions.h file and optionally add #import statements

for logging extensions.



Create your application's lcl_config_components.h file.



Add a #import statement for lcl.h to your application files, e.g. to your

application's prefix header file.



Define your log components in lcl_config_components.h.



Add lcl_log(...) log statements to your application.



See [http://0xc0.de/LibComponentLogging#Installation](http://0xc0.de/LibComponentLogging#Installation)

for more information about installing and configuring LibComponentLogging.



## Repository Branches



The Git repository contains the following branches:



* [master](http://github.com/aharren/LibComponentLogging-Core/tree/master):

  The *master* branch contains stable builds of the main logging code

  which are tagged with version numbers.



* [devel](http://github.com/aharren/LibComponentLogging-Core/tree/devel):

  The *devel* branch is the development branch for the logging code

  which contains an Xcode project and unit tests. The code in this branch is

  not stable.



## Related Repositories



The following Git repositories are related to this repository: 



* [LibComponentLogging-LogFile](http://github.com/aharren/LibComponentLogging-LogFile):

  A file logging class which writes log messages to an application-specific log

  file.



* [LibComponentLogging-SystemLog](http://github.com/aharren/LibComponentLogging-SystemLog):

  A logging class which sends log messages to the Apple System Log facility (ASL).



* [LibComponentLogging-NSLog](http://github.com/aharren/LibComponentLogging-NSLog):

  A very simple logger which redirects log messages to NSLog, but adds

  information about the log level, the log component, and the log statement's

  location (file name and line number).



* [LibComponentLogging-NSLogger](http://github.com/aharren/LibComponentLogging-NSLogger):

  A logger which integrates the logging client from Florent Pillet's NSLogger project.    

  See [http://github.com/fpillet/NSLogger](http://github.com/fpillet/NSLogger) for more details about NSLogger.



* [LibComponentLogging-qlog](http://github.com/aharren/LibComponentLogging-qlog):

  An extension which provides a set of quick logging macros.



* [LibComponentLogging-UserDefaults](http://github.com/aharren/LibComponentLogging-UserDefaults)

  An extension which stores/restores log level settings to/from the user defaults.



## Copyright and License



Copyright (c) 2008-2015 Arne Harren 



Permission is hereby granted, free of charge, to any person obtaining a copy

of this software and associated documentation files (the "Software"), to deal

in the Software without restriction, including without limitation the rights

to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

copies of the Software, and to permit persons to whom the Software is

furnished to do so, subject to the following conditions:



The above copyright notice and this permission notice shall be included in

all copies or substantial portions of the Software.



THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

THE SOFTWARE.