Mail Archives: cygwin/2019/08/22/12:22:20
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| Reply-To: | Brian DOT Inglis AT Shaw DOT ca
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| Subject: | Re: looking for xcb and/or wxcopy?
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| References: | <5D5D9DF2 DOT 1050400 AT tlinx DOT org> <c56fa8e5-e5b0-6998-e25b-43ed885a4034 AT t-online DOT de> <5D5E431A DOT 2070902 AT tlinx DOT org>
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| From: | Brian Inglis <Brian DOT Inglis AT Shaw DOT ca>
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| Message-ID: | <471a3016-13a2-cc28-4265-8e2061883f63@Shaw.ca>
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| Date: | Thu, 22 Aug 2019 10:21:22 -0600
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| In-Reply-To: | <5D5E431A.2070902@tlinx.org>
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On 2019-08-22 01:24, L A Walsh wrote:
> On 2019/08/21 15:21, Hans-Bernhard Bröker wrote:
>> So have you run cygcheck on the packages that are supposed to contain
>> them? "cygcheck -p wxcopy" tells me that the former are part of the
>> WindowMaker package.
>>
> Yes...but i started with xcb. When I saw it missing, I didn't bother
> to test the next one
>
> Not sure where it would have come from weird.
> Thanks for the clarification!
It doesn't help that now libxcb1 is the "X Protocol C-Language Bindings (core
runtime)".
There is /dev/clipboard and packages xclip, xclipboard, xwinclip.
There are escape sequences you can generate to get/set X term cut buffers; see:
https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h2-Operating-System-Commands
and scroll down to 5 2:
...
Operating System Commands
OSC Ps ; Pt BEL {\E]Ps;Pt\a}
OSC Ps ; Pt ST {\E]Ps;Pt\E\\ - string terminator used with string data args}
...
Ps = 5 2 -> Manipulate Selection Data. These controls may
be disabled using the allowWindowOps resource. The parameter
Pt is parsed as
Pc ; Pd
{\E]52;Pc;Pd\a}
{\E]52;Pc;Pd\E\\}
The first, Pc, may contain zero or more characters from the
set c , p , q , s , 0 , 1 , 2 , 3 , 4 , 5 , 6 , and 7 . It is
used to construct a list of selection parameters for clip-
board, primary, secondary, select, or cut buffers 0 through 7
respectively, in the order given. If the parameter is empty,
xterm uses s 0 , to specify the configurable primary/clipboard
selection and cut buffer 0.
The second parameter, Pd, gives the selection data. Normally
this is a string encoded in base64 (RFC-4648). The data
becomes the new selection, which is then available for pasting
by other applications.
If the second parameter is a ? , xterm replies to the host
with the selection data encoded using the same protocol. It
uses the first selection found by asking successively for each
item from the list of selection parameters.
If the second parameter is neither a base64 string nor ? ,
then the selection is cleared.
...
Use the first command format to get the buffer contents, response is the same as
the second command format, which returns the buffer contents in base 64 encoded
format:
\E]52;[cpqs0-7];?\a
\E]52;[cpqs0-7];<b64...>\E\\
For security, mintty requires config entry AllowSetSelection=true to enable
this; others may also have added guards.
I have found it useful to wrap these kinds of commands in bash shell functions,
and use bash "read -p prompt [-d delim] [-[nN] nchars] [-t timeout] response"
when there are responses, to send the escape sequence as a prompt, using what
they call ANSI escape quoting $'\...' for the prompt string, and read the
response, decoding it with shell substitutions: ${response#...} ${response%...},
displaying it with cat -A <<< "$response".
If no unique terminator ends the response so you can use the -d delim, you can
use -N n with a large enough size for any likely response (maybe 4K or higher
for buffers) and -t 1 to return the response after a second.
YMMV
--
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
This email may be disturbing to some readers as it contains
too much technical detail. Reader discretion is advised.
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