diff options
Diffstat (limited to 'devdocs/elisp/decompression.html')
| -rw-r--r-- | devdocs/elisp/decompression.html | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/devdocs/elisp/decompression.html b/devdocs/elisp/decompression.html new file mode 100644 index 00000000..83fa8e9c --- /dev/null +++ b/devdocs/elisp/decompression.html @@ -0,0 +1,10 @@ + <h3 class="section">Dealing With Compressed Data</h3> <p>When <code>auto-compression-mode</code> is enabled, Emacs automatically uncompresses compressed files when you visit them, and automatically recompresses them if you alter and save them. See <a href="https://www.gnu.org/software/emacs/manual/html_node/emacs/Compressed-Files.html#Compressed-Files">Compressed Files</a> in <cite>The GNU Emacs Manual</cite>. </p> <p>The above feature works by calling an external executable (e.g., <code>gzip</code>). Emacs can also be compiled with support for built-in decompression using the zlib library, which is faster than calling an external program. </p> <dl> <dt id="zlib-available-p">Function: <strong>zlib-available-p</strong> +</dt> <dd><p>This function returns non-<code>nil</code> if built-in zlib decompression is available. </p></dd> +</dl> <dl> <dt id="zlib-decompress-region">Function: <strong>zlib-decompress-region</strong> <em>start end &optional allow-partial</em> +</dt> <dd><p>This function decompresses the region between <var>start</var> and <var>end</var>, using built-in zlib decompression. The region should contain data that were compressed with gzip or zlib. On success, the function replaces the contents of the region with the decompressed data. If <var>allow-partial</var> is <code>nil</code> or omitted, then on failure, the function leaves the region unchanged and returns <code>nil</code>. Otherwise, it returns the number of bytes that were not decompressed and replaces the region text by whatever data was successfully decompressed. This function can be called only in unibyte buffers. </p></dd> +</dl><div class="_attribution"> + <p class="_attribution-p"> + Copyright © 1990-1996, 1998-2022 Free Software Foundation, Inc. <br>Licensed under the GNU GPL license.<br> + <a href="https://www.gnu.org/software/emacs/manual/html_node/elisp/Decompression.html" class="_attribution-link">https://www.gnu.org/software/emacs/manual/html_node/elisp/Decompression.html</a> + </p> +</div> |