deflate: Compress a raw GZIP stream

In zip: Cross-Platform 'zip' Compression

Compress a raw GZIP stream

Description

Compress a raw GZIP stream

Usage

deflate(buffer, level = 6L, pos = 1L, size = NULL)

Arguments

buffer	Raw vector, containing the data to compress.
level	Compression level, integer between 1 (fatest) and 9 (best).
pos	Start position of data to compress in buffer.
size	Compressed size estimate, or NULL. If not given, or too small, the output buffer is resized multiple times.

Value

Named list with three entries:

• output: raw vector, the compressed data,

• bytes_read: number of bytes used from buffer,

• bytes_written: number of bytes written to the output buffer.

See Also

base::memCompress() does the same with type = "gzip", but it does not tell you the number of bytes read from the input.

Examples

data_gz <- deflate(charToRaw("Hello world!"))
inflate(data_gz$output)

zip documentation built on April 17, 2023, 5:08 p.m.