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api: add nvim_create_buf to create a new empty buffer.

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Loading existing files into a buffer is non-trivial and requires a window.
Creating an unnamed emtpy buffer is trivial and safe though, thus worth a
special case.

Change nvim_buf_set_option to use aucmd_prepbuf. This is necessary
to allow some options to be set on a not yet displayed buffer, such
as 'buftype' option.

vim-patch:7.4.1858: Add BLN_NEW to enforce buflist_new creating new buffer
This commit is contained in:
Björn Linse
2017-09-02 14:21:06 +02:00
parent f6faeea41c
commit 891ed14f13
5 changed files with 62 additions and 5 deletions
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7
src/nvim/api/private/helpers.c
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@@ -27,6 +27,7 @@
#include "nvim/version.h"
#include "nvim/lib/kvec.h"
#include "nvim/getchar.h"
#include "nvim/fileio.h"
#include "nvim/ui.h"
/// Helper structure for vim_to_object
@@ -1094,7 +1095,7 @@ static void set_option_value_for(char *key,
{
win_T *save_curwin = NULL;
tabpage_T *save_curtab = NULL;
bufref_T save_curbuf = { NULL, 0, 0 };
aco_save_T aco;
try_start();
switch (opt_type)
@@ -1115,9 +1116,9 @@ static void set_option_value_for(char *key,
restore_win(save_curwin, save_curtab, true);
break;
case SREQ_BUF:
switch_buffer(&save_curbuf, (buf_T *)from);
aucmd_prepbuf(&aco, (buf_T *)from);
set_option_value_err(key, numval, stringval, opt_flags, err);
restore_buffer(&save_curbuf);
aucmd_restbuf(&aco);
break;
case SREQ_GLOBAL:
set_option_value_err(key, numval, stringval, opt_flags, err);