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patch 7.4.1857

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Problem:    When a channel appends to a buffer that is 'nomodifiable' there is
            an error but appending is done anyway.
Solution:   Add the 'modifiable' option.  Refuse to write to a 'nomodifiable'
            when the value is 1.
This commit is contained in:
Bram Moolenaar
2016-05-29 16:17:08 +02:00
parent 324a78f3b6
commit 9f5842e63f
5 changed files with 109 additions and 17 deletions
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23
runtime/doc/channel.txt
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@@ -1,4 +1,4 @@
*channel.txt* For Vim version 7.4. Last change: 2016 May 24
*channel.txt* For Vim version 7.4. Last change: 2016 May 29
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -578,8 +578,8 @@ See |job_setoptions()| and |ch_setoptions()|.
"exit_cb": handler Callback for when the job ends. The arguments are the
job and the exit status.
Vim checks about every 10 seconds for jobs that ended.
The callback can also be triggered by calling
|job_status()|.
The check also be triggered by calling |job_status()|,
which may then invoke the exit_cb handler.
Note that data can be buffered, callbacks may still be
called after the process ends.
*job-timeout*
@@ -625,18 +625,22 @@ See |job_setoptions()| and |ch_setoptions()|.
"out_io": "null" disconnect stdout (goes to /dev/null)
"out_io": "pipe" stdout is connected to the channel (default)
"out_io": "file" stdout writes to a file
"out_io": "buffer" stdout appends to a buffer
"out_io": "buffer" stdout appends to a buffer (see below)
"out_name": "/path/file" the name of the file or buffer to write to
"out_buf": number the number of the buffer to write to
"out_modifiable": 0 when writing to a buffer, 'modifiable' will be off
(see below)
*job-err_io* *err_name* *err_buf*
"err_io": "out" stderr messages to go to stdout
"err_io": "null" disconnect stderr (goes to /dev/null)
"err_io": "pipe" stderr is connected to the channel (default)
"err_io": "file" stderr writes to a file
"err_io": "buffer" stderr appends to a buffer
"err_io": "buffer" stderr appends to a buffer (see below)
"err_name": "/path/file" the name of the file or buffer to write to
"err_buf": number the number of the buffer to write to
"err_modifiable": 0 when writing to a buffer, 'modifiable' will be off
(see below)
"block_write": number only for testing: pretend every other write to stdin
will block
@@ -663,6 +667,15 @@ used to get the buffer number.
For a new buffer 'buftype' is set to "nofile" and 'bufhidden' to "hide". If
you prefer other settings, create the buffer first and pass the buffer number.
The "out_modifiable" and "err_modifiable" options can be used to set the
'modifiable' option off, or write to a buffer that has 'modifiable' off. That
means that lines will be appended to the buffer, but the user can't easily
change the buffer.
When an existing buffer is to be written where 'modifiable' is off and the
"out_modifiable" or "err_modifiable" options is not zero, an error is given
and the buffer will not be written to.
When the buffer written to is displayed in a window and the cursor is in the
first column of the last line, the cursor will be moved to the newly added
line and the window is scrolled up to show the cursor if needed.