Editing Compressed Files with Vim and Autocommands

1st chunk of `runtime/doc/pi_gzip.txt`

b8c230811ad9aa015c855e8d771d5985b5e935c023a02a7500000001000005fb

*pi_gzip.txt*   Nvim


		  VIM REFERENCE MANUAL    by Bram Moolenaar


Editing compressed files with Vim		*gzip* *bzip2* *compress*

1. Autocommands			|gzip-autocmd|

The functionality mentioned here is a |standard-plugin|.
This plugin is only available if 'compatible' is not set.
You can avoid loading this plugin by setting the "loaded_gzip" variable: >
	:let loaded_gzip = 1
<
							*g:gzip_exec*

For security reasons, one may prevent that Vim runs executables automatically
when opening a buffer.  This option (default: "1") can be used to prevent
executing the executables command when set to "0": >
	:let g:gzip_exec = 0
<

==============================================================================
1. Autocommands						*gzip-autocmd*

The plugin installs autocommands to intercept reading and writing of files
with these extensions:

	extension	compression >
	*.bz2		bzip2
	*.bz3		bzip3
	*.gz		gzip
	*.lz		lzip
	*.lz4		lz4
	*.lzma		lzma
	*.xz		xz
	*.Z		compress (Lempel-Ziv)
	*.zst		zstd

That's actually the only thing you need to know.  There are no options.

After decompressing a file, the filetype will be detected again.  This will
make a file like "foo.c.gz" get the "c" filetype.

If you have 'patchmode' set, it will be appended after the extension for
compression.  Thus editing the patchmode file will not give you the automatic
decompression.  You have to rename the file if you want this.

==============================================================================
 vim:tw=78:ts=8:noet:ft=help:norl:

Title: Editing Compressed Files with Vim and Autocommands

Summary

This section of the Vim reference manual describes how Vim handles editing compressed files using gzip, bzip2, compress, and other compression formats. It details the autocommands that are automatically set up to handle reading and writing files with specific extensions like .gz, .bz2, .Z, etc. It also mentions a security option 'g:gzip_exec' to prevent automatic execution of commands when opening compressed files and how the filetype is detected after decompression.