(Objective-C) Compress a String and Save as a Gzip File

See more Gzip Examples

This example demonstrates how to use the CompressStringToFile method to compress a string and write the result directly to a Gzip (.gz) file.

The input string is first converted to its byte representation using the specified character set (in this case, UTF-8). The resulting bytes are then compressed using the Gzip format, and the compressed output is written directly to the specified file.

This method is convenient when you want to generate a compressed file from in-memory text without needing intermediate objects such as BinData or StringBuilder.

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#import <CkoGzip.h>
#import <NSString.h>

BOOL success = NO;

// This example demonstrates how to compress a string and save the result
// directly to a Gzip (.gz) file.

CkoGzip *gzip = [[CkoGzip alloc] init];

// The string to be compressed:
NSString *inputStr = @"The quick brown fox jumps over the lazy dog.";

// Compress the string using UTF-8 and write to a file:
success = [gzip CompressStringToFile: inputStr destCharset: @"utf-8" destPath: @"output.gz"];
if (success == NO) {
    NSLog(@"%@",gzip.LastErrorText);
    return;
}

NSLog(@"%@",@"Compression successful.");
NSLog(@"%@",@"Gzip file written to output.gz");