diff options
| -rw-r--r-- | src/nvim/screen.c | 55 | ||||
| -rw-r--r-- | src/nvim/testdir/test_listlbr_utf8.vim | 10 |
2 files changed, 40 insertions, 25 deletions
diff --git a/src/nvim/screen.c b/src/nvim/screen.c index ab726dfdb0..6a8792b7b6 100644 --- a/src/nvim/screen.c +++ b/src/nvim/screen.c @@ -3720,41 +3720,46 @@ static int win_line(win_T *wp, linenr_T lnum, int startrow, int endrow, bool noc tab_len += n_extra - tab_len; } - // if n_extra > 0, it gives the number of chars + // If n_extra > 0, it gives the number of chars // to use for a tab, else we need to calculate the width - // for a tab + // for a tab. int len = (tab_len * utf_char2len(wp->w_p_lcs_chars.tab2)); + if (wp->w_p_lcs_chars.tab3) { + len += utf_char2len(wp->w_p_lcs_chars.tab3); + } if (n_extra > 0) { len += n_extra - tab_len; } c = wp->w_p_lcs_chars.tab1; p = xmalloc(len + 1); - memset(p, ' ', len); - p[len] = NUL; - xfree(p_extra_free); - p_extra_free = p; - for (i = 0; i < tab_len; i++) { - if (*p == NUL) { - tab_len = i; - break; - } - int lcs = wp->w_p_lcs_chars.tab2; + if (p == NULL) { + n_extra = 0; + } else { + memset(p, ' ', len); + p[len] = NUL; + xfree(p_extra_free); + p_extra_free = p; + for (i = 0; i < tab_len; i++) { + if (*p == NUL) { + tab_len = i; + break; + } + int lcs = wp->w_p_lcs_chars.tab2; - // if tab3 is given, need to change the char - // for tab - if (wp->w_p_lcs_chars.tab3 && i == tab_len - 1) { - lcs = wp->w_p_lcs_chars.tab3; + // if tab3 is given, use it for the last char + if (wp->w_p_lcs_chars.tab3 && i == tab_len - 1) { + lcs = wp->w_p_lcs_chars.tab3; + } + p += utf_char2bytes(lcs, p); + n_extra += utf_char2len(lcs) - (saved_nextra > 0 ? 1 : 0); } - utf_char2bytes(lcs, p); - p += utf_char2len(lcs); - n_extra += utf_char2len(lcs) - (saved_nextra > 0 ? 1 : 0); - } - p_extra = p_extra_free; + p_extra = p_extra_free; - // n_extra will be increased by FIX_FOX_BOGUSCOLS - // macro below, so need to adjust for that here - if (vcol_off > 0) { - n_extra -= vcol_off; + // n_extra will be increased by FIX_FOX_BOGUSCOLS + // macro below, so need to adjust for that here + if (vcol_off > 0) { + n_extra -= vcol_off; + } } } diff --git a/src/nvim/testdir/test_listlbr_utf8.vim b/src/nvim/testdir/test_listlbr_utf8.vim index c38e0c5f3c..1f100d6244 100644 --- a/src/nvim/testdir/test_listlbr_utf8.vim +++ b/src/nvim/testdir/test_listlbr_utf8.vim @@ -69,6 +69,16 @@ func Test_nolinebreak_with_list() call s:close_windows() endfunc +" this was causing a crash +func Test_linebreak_with_list_and_tabs() + set linebreak list listchars=tab:⇤\ ⇥ tabstop=100 + new + call setline(1, "\t\t\ttext") + redraw + bwipe! + set nolinebreak nolist listchars&vim tabstop=8 +endfunc + func Test_linebreak_with_nolist() call s:test_windows('setl nolist') call setline(1, "\t*mask = nil;") |