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-rw-r--r--src/nvim/drawline.c19
-rw-r--r--src/nvim/plines.c10
-rw-r--r--test/old/testdir/test_listlbr.vim15
3 files changed, 41 insertions, 3 deletions
diff --git a/src/nvim/drawline.c b/src/nvim/drawline.c
index 2d450087fd..1c7f649848 100644
--- a/src/nvim/drawline.c
+++ b/src/nvim/drawline.c
@@ -127,6 +127,9 @@ typedef struct {
int filler_lines; ///< nr of filler lines to be drawn
int filler_todo; ///< nr of filler lines still to do + 1
SignTextAttrs sattrs[SIGN_SHOW_MAX]; ///< sign attributes for the sign column
+ /// do consider wrapping in linebreak mode only after encountering
+ /// a non whitespace char
+ bool need_lbr;
VirtText virt_inline;
size_t virt_inline_i;
@@ -1018,6 +1021,7 @@ static void win_line_start(win_T *wp, winlinevars_T *wlv, bool save_extra)
{
wlv->col = 0;
wlv->off = 0;
+ wlv->need_lbr = false;
if (wp->w_p_rl) {
// Rightleft window: process the text in the normal direction, but put
@@ -1038,6 +1042,7 @@ static void win_line_start(win_T *wp, winlinevars_T *wlv, bool save_extra)
wlv->saved_extra_for_extmark = wlv->extra_for_extmark;
wlv->saved_c_extra = wlv->c_extra;
wlv->saved_c_final = wlv->c_final;
+ wlv->need_lbr = true;
wlv->saved_char_attr = wlv->char_attr;
wlv->n_extra = 0;
@@ -2302,9 +2307,19 @@ int win_line(win_T *wp, linenr_T lnum, int startrow, int endrow, bool number_onl
wlv.char_attr = hl_combine_attr(term_attrs[wlv.vcol], wlv.char_attr);
}
+ // we don't want linebreak to apply for lines that start with
+ // leading spaces, followed by long letters (since it would add
+ // a break at the beginning of a line and this might be unexpected)
+ //
+ // So only allow to linebreak, once we have found chars not in
+ // 'breakat' in the line.
+ if (wp->w_p_lbr && !wlv.need_lbr && c != NUL
+ && !vim_isbreak((uint8_t)(*ptr))) {
+ wlv.need_lbr = true;
+ }
// Found last space before word: check for line break.
- if (wp->w_p_lbr && c0 == c && vim_isbreak(c)
- && !vim_isbreak((int)(*ptr))) {
+ if (wp->w_p_lbr && c0 == c && wlv.need_lbr
+ && vim_isbreak(c) && !vim_isbreak((uint8_t)(*ptr))) {
int mb_off = utf_head_off(line, ptr - 1);
char *p = ptr - (mb_off + 1);
chartabsize_T cts;
diff --git a/src/nvim/plines.c b/src/nvim/plines.c
index 97782b39bc..2b8cdd4ad9 100644
--- a/src/nvim/plines.c
+++ b/src/nvim/plines.c
@@ -340,9 +340,17 @@ int win_lbr_chartabsize(chartabsize_T *cts, int *headp)
*headp = head;
}
+ colnr_T vcol_start = 0; // start from where to consider linebreak
// If 'linebreak' set check at a blank before a non-blank if the line
// needs a break here
- if (wp->w_p_lbr
+ if (wp->w_p_lbr && wp->w_p_wrap && wp->w_width_inner != 0) {
+ char *t = cts->cts_line;
+ while (vim_isbreak((uint8_t)(*t))) {
+ t++;
+ }
+ vcol_start = (colnr_T)(t - cts->cts_line);
+ }
+ if (wp->w_p_lbr && vcol_start <= vcol
&& vim_isbreak((uint8_t)s[0])
&& !vim_isbreak((uint8_t)s[1])
&& wp->w_p_wrap
diff --git a/test/old/testdir/test_listlbr.vim b/test/old/testdir/test_listlbr.vim
index 9b9bf63864..6dea94fbf1 100644
--- a/test/old/testdir/test_listlbr.vim
+++ b/test/old/testdir/test_listlbr.vim
@@ -373,4 +373,19 @@ func Test_ctrl_char_on_wrap_column()
call s:close_windows()
endfunc
+func Test_linebreak_no_break_after_whitespace_only()
+ call s:test_windows('setl ts=4 linebreak wrap')
+ call setline(1, "\tabcdefghijklmnopqrstuvwxyz" ..
+ \ "abcdefghijklmnopqrstuvwxyz")
+ let lines = s:screen_lines([1, 4], winwidth(0))
+ let expect = [
+\ " abcdefghijklmnop",
+\ "qrstuvwxyzabcdefghij",
+\ "klmnopqrstuvwxyz ",
+\ "~ ",
+\ ]
+ call s:compare_lines(expect, lines)
+ call s:close_windows()
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab