diff options
Diffstat (limited to 'src/edit.c')
| -rw-r--r-- | src/edit.c | 72 |
1 files changed, 48 insertions, 24 deletions
diff --git a/src/edit.c b/src/edit.c index 69ec25518a..c7f90dacdd 100644 --- a/src/edit.c +++ b/src/edit.c @@ -3958,10 +3958,9 @@ ins_del(void) * Delete one character for ins_bs(). */ static void -ins_bs_one(colnr_T *vcolp) +ins_bs_one(void) { dec_cursor(); - getvcol(curwin, &curwin->w_cursor, vcolp, NULL, NULL); if (State & REPLACE_FLAG) { // Don't delete characters before the insert point when in @@ -4212,19 +4211,38 @@ ins_bs( || arrow_used)))))) { int ts; - colnr_T vcol; + colnr_T vcol = 0; colnr_T want_vcol; - colnr_T start_vcol; + char_u *line; + char_u *ptr; + char_u *end_ptr; + char_u *space_ptr; + colnr_T space_vcol = 0; + int prev_space = FALSE; + colnr_T want_col; *inserted_space_p = FALSE; - // Compute the virtual column where we want to be. Since - // 'showbreak' may get in the way, need to get the last column of - // the previous character. - getvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL); - start_vcol = vcol; - dec_cursor(); - getvcol(curwin, &curwin->w_cursor, NULL, NULL, &want_vcol); - inc_cursor(); + + space_ptr = ptr = line = ml_get_curline(); + end_ptr = line + curwin->w_cursor.col; + + // Find the last whitespace that is preceded by non-whitespace. + // Use chartabsize() so that virtual text and wrapping are ignored. + do { + int cur_space = VIM_ISWHITE(*ptr); + + if (!prev_space && cur_space) + { + space_ptr = ptr; + space_vcol = vcol; + } + vcol += chartabsize(ptr, vcol); + MB_PTR_ADV(ptr); + prev_space = cur_space; + } while (ptr < end_ptr); + + // Compute the virtual column where we want to be. + want_vcol = vcol - 1; #ifdef FEAT_VARTABS if (p_sta && in_indent) { @@ -4242,13 +4260,25 @@ ins_bs( want_vcol = (want_vcol / ts) * ts; #endif - // delete characters until we are at or before want_vcol - while (vcol > want_vcol && curwin->w_cursor.col > 0 - && (cc = *(ml_get_cursor() - 1), VIM_ISWHITE(cc))) - ins_bs_one(&vcol); + // Find the position to stop backspacing. + // Use chartabsize() so that virtual text and wrapping are ignored. + while (TRUE) + { + int size = chartabsize(space_ptr, space_vcol); + + if (space_vcol + size > want_vcol) + break; + space_vcol += size; + MB_PTR_ADV(space_ptr); + } + want_col = space_ptr - line; + + // Delete characters until we are at or before want_col. + while (curwin->w_cursor.col > want_col) + ins_bs_one(); - // insert extra spaces until we are at want_vcol - while (vcol < want_vcol) + // Insert extra spaces until we are at want_vcol. + for (; space_vcol < want_vcol; space_vcol++) { // Remember the first char we inserted if (curwin->w_cursor.lnum == Insstart_orig.lnum @@ -4263,13 +4293,7 @@ ins_bs( if ((State & REPLACE_FLAG)) replace_push(NUL); } - getvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL); } - - // If we are now back where we started delete one character. Can - // happen when using 'sts' and 'linebreak'. - if (vcol >= start_vcol) - ins_bs_one(&vcol); } /* |