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CURLOPT_ACCEPT_ENCODING.3: add brotli and clarify a bit

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Daniel Stenberg 2018-05-22 08:23:30 +02:00
parent 3ba334f6e7
commit 2ceab09451
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1 changed files with 14 additions and 6 deletions
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docs/libcurl/opts/CURLOPT_ACCEPT_ENCODING.3
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@ -5,7 +5,7 @@
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
@ -32,12 +32,20 @@ Pass a char * argument specifying what encoding you'd like.
Sets the contents of the Accept-Encoding: header sent in an HTTP request, and
enables decoding of a response when a Content-Encoding: header is received.
Three encodings are supported: \fIidentity\fP, meaning non-compressed,
\fIdeflate\fP which requests the server to compress its response using the
zlib algorithm, and \fIgzip\fP which requests the gzip algorithm.
If a zero-length string is set like "", then an Accept-Encoding: header
containing all built-in supported encodings is sent.
libcurl potentially supports several different compressed encodings depending
on what support that has been built-in.
To aid applications not having to bother about what specific algorithms this
particular libcurl build supports, libcurl allows a zero-length string to be
set ("") to ask for an Accept-Encoding: header to be used that contains all
built-in supported encodings.
Alternatively, you can specify exactly the encoding or list of encodings you
want in the response. Four encodings are supported: \fIidentity\fP, meaning
non-compressed, \fIdeflate\fP which requests the server to compress its
response using the zlib algorithm, \fIgzip\fP which requests the gzip
algorithm and (since curl 7.57.0) \fIbr\fP which is brotli.
Set this option to NULL to explicitly disable it, which makes libcurl not send
an Accept-Encoding: header and not decompress contents automatically.