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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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2
src/nvim/buffer.c
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@@ -1629,7 +1629,7 @@ buf_T * buflist_new(char_u *ffname, char_u *sfname, linenr_T lnum, int flags)
FileID file_id;
bool file_id_valid = (sfname != NULL
&& os_fileid((char *)sfname, &file_id));
if (ffname != NULL && !(flags & BLN_DUMMY)
if (ffname != NULL && !(flags & (BLN_DUMMY | BLN_NEW))
&& (buf = buflist_findname_file_id(ffname, &file_id,
file_id_valid)) != NULL) {
xfree(ffname);