(Objective-C) Enter/Leave Context in Logging

Demonstrates EnterContext and LeaveContext using the Chilkat Log API.

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#import <CkoLog.h>

CkoLog *log = [[CkoLog alloc] init];

// Initialize the log object with an initial context tag:
[log Clear: @"myLog"];

// Add some information..
[log LogInfo: @"Hello, I'm here..."];

// Open a sub-context
[log EnterContext: @"abc"];

// New information is now logged within the "abc" context.
[log LogInfo: @"This is inside the abc context"];
[log LogError: @"File not found."];

// Perhaps open a new context...
[log EnterContext: @"fileInfo"];
[log LogData: @"filename" message: @"something.txt"];
[log LogData: @"path" message: @"/somedir/xyz"];
[log LeaveContext];

// Close the "abc" context.
[log LeaveContext];

// Examine the content of the log:
NSLog(@"%@",log.LastErrorText);

// This is the output:

// myLog:
//   Hello, I'm here...
//   abc:
//     This is inside the abc context
//     File not found.
//     fileInfo:
//       filename: something.txt
//       path: /somedir/xyz
//     --fileInfo
//   --abc
// --myLog