// drawline.c: Functions for drawing window lines on the screen. // This is the middle level, drawscreen.c is the top and grid.c the lower level. #include #include #include #include #include #include #include #include "nvim/ascii_defs.h" #include "nvim/buffer.h" #include "nvim/charset.h" #include "nvim/cursor.h" #include "nvim/cursor_shape.h" #include "nvim/decoration.h" #include "nvim/decoration_provider.h" #include "nvim/diff.h" #include "nvim/drawline.h" #include "nvim/drawscreen.h" #include "nvim/eval.h" #include "nvim/fold.h" #include "nvim/fold_defs.h" #include "nvim/globals.h" #include "nvim/grid.h" #include "nvim/highlight.h" #include "nvim/highlight_group.h" #include "nvim/indent.h" #include "nvim/mark.h" #include "nvim/match.h" #include "nvim/mbyte.h" #include "nvim/memline.h" #include "nvim/memory.h" #include "nvim/move.h" #include "nvim/option.h" #include "nvim/option_vars.h" #include "nvim/plines.h" #include "nvim/pos_defs.h" #include "nvim/quickfix.h" #include "nvim/sign.h" #include "nvim/spell.h" #include "nvim/state.h" #include "nvim/statusline.h" #include "nvim/strings.h" #include "nvim/syntax.h" #include "nvim/terminal.h" #include "nvim/types_defs.h" #include "nvim/ui.h" #include "nvim/vim_defs.h" #define MB_FILLER_CHAR '<' // character used when a double-width character doesn't fit. /// possible draw states in win_line(), drawn in sequence. typedef enum { WL_START = 0, // nothing done yet WL_CMDLINE, // cmdline window column WL_FOLD, // 'foldcolumn' WL_SIGN, // column for signs WL_NR, // line number WL_STC, // 'statuscolumn' WL_BRI, // 'breakindent' WL_SBR, // 'showbreak' or 'diff' WL_LINE, // text in the line } LineDrawState; /// structure with variables passed between win_line() and other functions typedef struct { LineDrawState draw_state; ///< what to draw next linenr_T lnum; ///< line number to be drawn foldinfo_T foldinfo; ///< fold info for this line int startrow; ///< first row in the window to be drawn int row; ///< row in the window, excl w_winrow colnr_T vcol; ///< virtual column, before wrapping int col; ///< visual column on screen, after wrapping int boguscols; ///< nonexistent columns added to "col" to force wrapping int vcol_off; ///< offset for concealed characters int off; ///< offset relative start of line int cul_attr; ///< set when 'cursorline' active int line_attr; ///< attribute for the whole line int line_attr_lowprio; ///< low-priority attribute for the line int fromcol; ///< start of inverting int tocol; ///< end of inverting colnr_T vcol_sbr; ///< virtual column after showbreak bool need_showbreak; ///< overlong line, skipping first x chars int char_attr; ///< attributes for next character int n_extra; ///< number of extra bytes int n_attr; ///< chars with special attr char *p_extra; ///< string of extra chars, plus NUL, only used ///< when c_extra and c_final are NUL int extra_attr; ///< attributes for p_extra int c_extra; ///< extra chars, all the same int c_final; ///< final char, mandatory if set int n_closing; ///< number of chars in fdc which will be closing bool extra_for_extmark; ///< n_extra set for inline virtual text // saved "extra" items for when draw_state becomes WL_LINE (again) int saved_n_extra; char *saved_p_extra; bool saved_extra_for_extmark; int saved_c_extra; int saved_c_final; int saved_char_attr; char extra[57]; ///< sign, line number and 'fdc' must fit in here hlf_T diff_hlf; ///< type of diff highlighting int n_virt_lines; ///< nr of virtual lines 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; HlMode virt_inline_hl_mode; bool reset_extra_attr; int skip_cells; ///< nr of cells to skip for w_leftcol ///< or w_skipcol or concealing int skipped_cells; ///< nr of skipped cells for virtual text ///< to be added to wlv.vcol later } winlinevars_T; #ifdef INCLUDE_GENERATED_DECLARATIONS # include "drawline.c.generated.h" #endif static char *extra_buf = NULL; static size_t extra_buf_size = 0; static char *get_extra_buf(size_t size) { size = MAX(size, 64); if (extra_buf_size < size) { xfree(extra_buf); extra_buf = xmalloc(size); extra_buf_size = size; } return extra_buf; } #ifdef EXITFREE void drawline_free_all_mem(void) { xfree(extra_buf); } #endif /// Advance **color_cols /// /// @return true when there are columns to draw. static bool advance_color_col(int vcol, int **color_cols) { while (**color_cols >= 0 && vcol > **color_cols) { (*color_cols)++; } return **color_cols >= 0; } /// Used when 'cursorlineopt' contains "screenline": compute the margins between /// which the highlighting is used. static void margin_columns_win(win_T *wp, int *left_col, int *right_col) { // cache previous calculations depending on w_virtcol static int saved_w_virtcol; static win_T *prev_wp; static int prev_left_col; static int prev_right_col; static int prev_col_off; int cur_col_off = win_col_off(wp); int width1; int width2; if (saved_w_virtcol == wp->w_virtcol && prev_wp == wp && prev_col_off == cur_col_off) { *right_col = prev_right_col; *left_col = prev_left_col; return; } width1 = wp->w_width_inner - cur_col_off; width2 = width1 + win_col_off2(wp); *left_col = 0; *right_col = width1; if (wp->w_virtcol >= (colnr_T)width1) { *right_col = width1 + ((wp->w_virtcol - width1) / width2 + 1) * width2; } if (wp->w_virtcol >= (colnr_T)width1 && width2 > 0) { *left_col = (wp->w_virtcol - width1) / width2 * width2 + width1; } // cache values prev_left_col = *left_col; prev_right_col = *right_col; prev_wp = wp; saved_w_virtcol = wp->w_virtcol; prev_col_off = cur_col_off; } /// Put a single char from an UTF-8 buffer into a line buffer. /// /// If `*pp` is a double-width char and only one cell is left, emit a space, /// and don't advance *pp /// /// Handles composing chars static int line_putchar(buf_T *buf, const char **pp, schar_T *dest, int maxcells, int vcol) { const char *p = *pp; int cells = utf_ptr2cells(p); int c_len = utfc_ptr2len(p); assert(maxcells > 0); if (cells > maxcells) { dest[0] = schar_from_ascii(' '); return 1; } if (*p == TAB) { cells = MIN(tabstop_padding(vcol, buf->b_p_ts, buf->b_p_vts_array), maxcells); } if (cells < maxcells && dest[cells] == 0) { dest[cells] = schar_from_ascii(' '); } if (*p == TAB) { for (int c = 0; c < cells; c++) { dest[c] = schar_from_ascii(' '); } } else { int u8c; dest[0] = utfc_ptr2schar(p, &u8c); if (cells > 1) { dest[1] = 0; } } *pp += c_len; return cells; } static void draw_virt_text(win_T *wp, buf_T *buf, int col_off, int *end_col, int win_row) { DecorState *state = &decor_state; const int max_col = wp->w_grid.cols; int right_pos = max_col; bool do_eol = state->eol_col > -1; for (size_t i = 0; i < kv_size(state->active); i++) { DecorRange *item = &kv_A(state->active, i); if (!(item->start_row == state->row && decor_virt_pos(item))) { continue; } DecorVirtText *vt = NULL; if (item->kind == kDecorKindVirtText) { assert(item->data.vt); vt = item->data.vt; } if (decor_virt_pos(item) && item->draw_col == -1) { bool updated = true; VirtTextPos pos = decor_virt_pos_kind(item); if (pos == kVPosRightAlign) { right_pos -= vt->width; item->draw_col = right_pos; } else if (pos == kVPosEndOfLine && do_eol) { item->draw_col = state->eol_col; } else if (pos == kVPosWinCol) { item->draw_col = MAX(col_off + vt->col, 0); } else { updated = false; } if (updated && (item->draw_col < 0 || item->draw_col >= wp->w_grid.cols)) { // Out of window, don't draw at all. item->draw_col = INT_MIN; } } if (item->draw_col < 0) { continue; } int col = 0; if (item->kind == kDecorKindUIWatched) { // send mark position to UI col = item->draw_col; WinExtmark m = { (NS)item->data.ui.ns_id, item->data.ui.mark_id, win_row, col }; kv_push(win_extmark_arr, m); } if (vt) { int vcol = item->draw_col - col_off; col = draw_virt_text_item(buf, item->draw_col, vt->data.virt_text, vt->hl_mode, max_col, vcol); } item->draw_col = INT_MIN; // deactivate if (vt && vt->pos == kVPosEndOfLine && do_eol) { state->eol_col = col + 1; } *end_col = MAX(*end_col, col); } } static int draw_virt_text_item(buf_T *buf, int col, VirtText vt, HlMode hl_mode, int max_col, int vcol) { const char *p = ""; int virt_attr = 0; size_t virt_pos = 0; while (col < max_col) { if (!*p) { if (virt_pos >= kv_size(vt)) { break; } virt_attr = 0; p = next_virt_text_chunk(vt, &virt_pos, &virt_attr); if (p == NULL) { break; } } if (*p == NUL) { continue; } int attr; bool through = false; if (hl_mode == kHlModeCombine) { attr = hl_combine_attr(linebuf_attr[col], virt_attr); } else if (hl_mode == kHlModeBlend) { through = (*p == ' '); attr = hl_blend_attrs(linebuf_attr[col], virt_attr, &through); } else { attr = virt_attr; } schar_T dummy[2]; int maxcells = max_col - col; int cells = line_putchar(buf, &p, through ? dummy : &linebuf_char[col], maxcells, vcol); for (int c = 0; c < cells; c++) { linebuf_attr[col] = attr; col++; } vcol += cells; } return col; } /// Return true if CursorLineSign highlight is to be used. static bool use_cursor_line_highlight(win_T *wp, linenr_T lnum) { return wp->w_p_cul && lnum == wp->w_cursorline && (wp->w_p_culopt_flags & CULOPT_NBR); } static char fdc_buf[MB_MAXCHAR * 10 + 1]; /// Setup for drawing the 'foldcolumn', if there is one. static void handle_foldcolumn(win_T *wp, winlinevars_T *wlv) { int fdc = compute_foldcolumn(wp, 0); if (fdc <= 0) { return; } // Use a separate buffer as `extra_buf` might be in use. wlv->n_extra = (int)fill_foldcolumn(fdc_buf, wp, wlv->foldinfo, wlv->lnum, &wlv->n_closing); fdc_buf[wlv->n_extra] = NUL; wlv->p_extra = fdc_buf; wlv->c_extra = NUL; wlv->c_final = NUL; if (use_cursor_line_highlight(wp, wlv->lnum)) { wlv->char_attr = win_hl_attr(wp, HLF_CLF); } else { wlv->char_attr = win_hl_attr(wp, HLF_FC); } } /// Fills the foldcolumn at "p" for window "wp". /// Only to be called when 'foldcolumn' > 0. /// /// @param[out] p Char array to write into /// @param lnum Absolute current line number /// @param closed Whether it is in 'foldcolumn' mode /// /// Assume monocell characters /// @return number of chars added to \param p size_t fill_foldcolumn(char *p, win_T *wp, foldinfo_T foldinfo, linenr_T lnum, int *n_closing) { int i = 0; int fdc = compute_foldcolumn(wp, 0); // available cell width size_t char_counter = 0; int symbol = 0; int len = 0; bool closed = foldinfo.fi_level != 0 && foldinfo.fi_lines > 0; // Init to all spaces. memset(p, ' ', MB_MAXCHAR * (size_t)fdc + 1); int level = foldinfo.fi_level; // If the column is too narrow, we start at the lowest level that // fits and use numbers to indicate the depth. int first_level = level - fdc - closed + 1; if (first_level < 1) { first_level = 1; } for (i = 0; i < MIN(fdc, level); i++) { if (foldinfo.fi_lnum == lnum && first_level + i >= foldinfo.fi_low_level) { symbol = wp->w_p_fcs_chars.foldopen; } else if (first_level == 1) { symbol = wp->w_p_fcs_chars.foldsep; } else if (first_level + i <= 9) { symbol = '0' + first_level + i; } else { symbol = '>'; } len = utf_char2bytes(symbol, &p[char_counter]); char_counter += (size_t)len; if (first_level + i >= level) { i++; break; } } int n_closing_val = i; if (closed) { if (symbol != 0) { // rollback previous write char_counter -= (size_t)len; memset(&p[char_counter], ' ', (size_t)len); n_closing_val--; } len = utf_char2bytes(wp->w_p_fcs_chars.foldclosed, &p[char_counter]); char_counter += (size_t)len; } if (n_closing) { *n_closing = n_closing_val; } return MAX(char_counter + (size_t)(fdc - i), (size_t)fdc); } /// Get information needed to display the sign in line "wlv->lnum" in window "wp". /// If "nrcol" is true, the sign is going to be displayed in the number column. /// Otherwise the sign is going to be displayed in the sign column. If there is no /// sign, draw blank cells instead. static void get_sign_display_info(bool nrcol, win_T *wp, winlinevars_T *wlv, int sign_idx, int sign_cul_attr) { SignTextAttrs sattr = wlv->sattrs[sign_idx]; wlv->c_final = NUL; if (sattr.text && wlv->row == wlv->startrow + wlv->filler_lines && wlv->filler_todo <= 0) { size_t fill = nrcol ? (size_t)number_width(wp) - SIGN_WIDTH : 0; size_t sign_len = strlen(sattr.text); // Spaces + sign: " " + ">>" + ' ' wlv->n_extra = (int)(fill + sign_len + nrcol); if (nrcol) { memset(wlv->extra, ' ', (size_t)wlv->n_extra); } memcpy(wlv->extra + fill, sattr.text, sign_len); wlv->p_extra = wlv->extra; wlv->c_extra = NUL; wlv->char_attr = (use_cursor_line_highlight(wp, wlv->lnum) && sign_cul_attr) ? sign_cul_attr : sattr.hl_id ? syn_id2attr(sattr.hl_id) : 0; } else { wlv->c_extra = ' '; wlv->n_extra = nrcol ? number_width(wp) + 1 : SIGN_WIDTH; if (!nrcol) { wlv->char_attr = win_hl_attr(wp, use_cursor_line_highlight(wp, wlv->lnum) ? HLF_CLS : HLF_SC); } } } static inline void get_line_number_str(win_T *wp, linenr_T lnum, char *buf, size_t buf_len) { linenr_T num; char *fmt = "%*" PRIdLINENR " "; if (wp->w_p_nu && !wp->w_p_rnu) { // 'number' + 'norelativenumber' num = lnum; } else { // 'relativenumber', don't use negative numbers num = abs(get_cursor_rel_lnum(wp, lnum)); if (num == 0 && wp->w_p_nu && wp->w_p_rnu) { // 'number' + 'relativenumber' num = lnum; fmt = "%-*" PRIdLINENR " "; } } snprintf(buf, buf_len, fmt, number_width(wp), num); } /// Return true if CursorLineNr highlight is to be used for the number column. /// - 'cursorline' must be set /// - "wlv->lnum" must be the cursor line /// - 'cursorlineopt' has "number" /// - don't highlight filler lines (when in diff mode) /// - When line is wrapped and 'cursorlineopt' does not have "line", only highlight the line number /// itself on the first screenline of the wrapped line, otherwise highlight the number column of /// all screenlines of the wrapped line. static bool use_cursor_line_nr(win_T *wp, winlinevars_T *wlv) { return wp->w_p_cul && wlv->lnum == wp->w_cursorline && (wp->w_p_culopt_flags & CULOPT_NBR) && (wlv->row == wlv->startrow + wlv->filler_lines || (wlv->row > wlv->startrow + wlv->filler_lines && (wp->w_p_culopt_flags & CULOPT_LINE))); } static int get_line_number_attr(win_T *wp, winlinevars_T *wlv) { if (use_cursor_line_nr(wp, wlv)) { // TODO(vim): Can we use CursorLine instead of CursorLineNr // when CursorLineNr isn't set? return win_hl_attr(wp, HLF_CLN); } if (wp->w_p_rnu) { if (wlv->lnum < wp->w_cursor.lnum) { // Use LineNrAbove return win_hl_attr(wp, HLF_LNA); } if (wlv->lnum > wp->w_cursor.lnum) { // Use LineNrBelow return win_hl_attr(wp, HLF_LNB); } } return win_hl_attr(wp, HLF_N); } /// Display the absolute or relative line number. After the first row fill with /// blanks when the 'n' flag isn't in 'cpo'. static void handle_lnum_col(win_T *wp, winlinevars_T *wlv, int sign_num_attr, int sign_cul_attr) { bool has_cpo_n = vim_strchr(p_cpo, CPO_NUMCOL) != NULL; if ((wp->w_p_nu || wp->w_p_rnu) && (wlv->row == wlv->startrow + wlv->filler_lines || !has_cpo_n) // there is no line number in a wrapped line when "n" is in // 'cpoptions', but 'breakindent' assumes it anyway. && !((has_cpo_n && !wp->w_p_bri) && wp->w_skipcol > 0 && wlv->lnum == wp->w_topline)) { // If 'signcolumn' is set to 'number' and a sign is present in "lnum", // then display the sign instead of the line number. if (wp->w_minscwidth == SCL_NUM && wlv->sattrs[0].text) { get_sign_display_info(true, wp, wlv, 0, sign_cul_attr); } else { // Draw the line number (empty space after wrapping). if (wlv->row == wlv->startrow + wlv->filler_lines && (wp->w_skipcol == 0 || wlv->row > 0 || (wp->w_p_nu && wp->w_p_rnu))) { get_line_number_str(wp, wlv->lnum, wlv->extra, sizeof(wlv->extra)); if (wp->w_skipcol > 0 && wlv->startrow == 0) { for (wlv->p_extra = wlv->extra; *wlv->p_extra == ' '; wlv->p_extra++) { *wlv->p_extra = '-'; } } if (wp->w_p_rl) { // reverse line numbers char *num = skipwhite(wlv->extra); rl_mirror_ascii(num, skiptowhite(num)); } wlv->p_extra = wlv->extra; wlv->c_extra = NUL; } else { wlv->c_extra = ' '; } wlv->c_final = NUL; wlv->n_extra = number_width(wp) + 1; if (sign_num_attr > 0) { wlv->char_attr = sign_num_attr; } else { wlv->char_attr = get_line_number_attr(wp, wlv); } } } } /// Prepare and build the 'statuscolumn' string for line "lnum" in window "wp". /// Fill "stcp" with the built status column string and attributes. /// This can be called three times per win_line(), once for virt_lines, once for /// the start of the buffer line "lnum" and once for the wrapped lines. /// /// @param[out] stcp Status column attributes static void get_statuscol_str(win_T *wp, linenr_T lnum, int virtnum, statuscol_T *stcp) { // When called for the first non-filler row of line "lnum" set num v:vars linenr_T relnum = virtnum == 0 ? abs(get_cursor_rel_lnum(wp, lnum)) : -1; // When a buffer's line count has changed, make a best estimate for the full // width of the status column by building with "w_nrwidth_line_count". Add // potentially truncated width and rebuild before drawing anything. if (wp->w_statuscol_line_count != wp->w_nrwidth_line_count) { wp->w_statuscol_line_count = wp->w_nrwidth_line_count; set_vim_var_nr(VV_VIRTNUM, 0); build_statuscol_str(wp, wp->w_nrwidth_line_count, 0, stcp); if (stcp->truncate > 0) { // Add truncated width to avoid unnecessary redraws int addwidth = MIN(stcp->truncate, MAX_NUMBERWIDTH - wp->w_nrwidth); stcp->truncate = 0; stcp->width += addwidth; wp->w_nrwidth += addwidth; wp->w_nrwidth_width = wp->w_nrwidth; wp->w_valid &= ~VALID_WCOL; } } set_vim_var_nr(VV_VIRTNUM, virtnum); int width = build_statuscol_str(wp, lnum, relnum, stcp); // Force a redraw in case of error or when truncated if (*wp->w_p_stc == NUL || (stcp->truncate > 0 && wp->w_nrwidth < MAX_NUMBERWIDTH)) { if (stcp->truncate > 0) { // Avoid truncating 'statuscolumn' wp->w_nrwidth = MIN(MAX_NUMBERWIDTH, wp->w_nrwidth + stcp->truncate); wp->w_nrwidth_width = wp->w_nrwidth; } else { // 'statuscolumn' reset due to error wp->w_nrwidth_line_count = 0; wp->w_nrwidth = (wp->w_p_nu || wp->w_p_rnu) * number_width(wp); } wp->w_redr_statuscol = true; return; } // Reset text/highlight pointer and current attr for new line stcp->textp = stcp->text; stcp->hlrecp = stcp->hlrec; stcp->cur_attr = stcp->num_attr; stcp->text_end = stcp->text + strlen(stcp->text); int fill = stcp->width - width; if (fill > 0) { // Fill up with ' ' memset(stcp->text_end, ' ', (size_t)fill); *(stcp->text_end += fill) = NUL; } } /// Get information needed to display the next segment in the 'statuscolumn'. /// If not yet at the end, prepare for next segment and decrement "wlv->draw_state". /// /// @param stcp Status column attributes /// @param[in,out] wlv static void get_statuscol_display_info(statuscol_T *stcp, winlinevars_T *wlv) { wlv->c_extra = NUL; wlv->c_final = NUL; do { wlv->draw_state = WL_STC; wlv->char_attr = stcp->cur_attr; wlv->p_extra = stcp->textp; char *const section_end = stcp->hlrecp->start ? stcp->hlrecp->start : stcp->text_end; wlv->n_extra = (int)(section_end - stcp->textp); // Prepare for next highlight section if not yet at the end if (section_end < stcp->text_end) { int hl = stcp->hlrecp->userhl; stcp->textp = stcp->hlrecp->start; stcp->cur_attr = hl < 0 ? syn_id2attr(-hl) : stcp->num_attr; stcp->hlrecp++; wlv->draw_state = WL_STC - 1; } // Skip over empty highlight sections } while (wlv->n_extra == 0 && stcp->textp < stcp->text_end); if (wlv->n_extra > 0) { static char transbuf[(MAX_NUMBERWIDTH + 9 + 9 * 2) * MB_MAXBYTES + 1]; wlv->n_extra = (int)transstr_buf(wlv->p_extra, wlv->n_extra, transbuf, sizeof transbuf, true); wlv->p_extra = transbuf; } } static void handle_breakindent(win_T *wp, winlinevars_T *wlv) { if (wp->w_briopt_sbr && wlv->draw_state == WL_BRI - 1 && *get_showbreak_value(wp) != NUL) { // draw indent after showbreak value wlv->draw_state = WL_BRI; } else if (wp->w_briopt_sbr && wlv->draw_state == WL_SBR) { // after the showbreak, draw the breakindent wlv->draw_state = WL_BRI - 1; } // draw 'breakindent': indent wrapped text accordingly if (wlv->draw_state == WL_BRI - 1 && wlv->n_extra == 0) { wlv->draw_state = WL_BRI; // if wlv->need_showbreak is set, breakindent also applies if (wp->w_p_bri && (wlv->row != wlv->startrow || wlv->need_showbreak) && wlv->filler_lines == 0) { wlv->char_attr = 0; if (wlv->diff_hlf != (hlf_T)0) { wlv->char_attr = win_hl_attr(wp, (int)wlv->diff_hlf); } wlv->p_extra = NULL; wlv->c_extra = ' '; wlv->c_final = NUL; wlv->n_extra = get_breakindent_win(wp, ml_get_buf(wp->w_buffer, wlv->lnum)); if (wlv->row == wlv->startrow) { wlv->n_extra -= win_col_off2(wp); if (wlv->n_extra < 0) { wlv->n_extra = 0; } } if (wp->w_skipcol > 0 && wlv->startrow == 0 && wp->w_p_wrap && wp->w_briopt_sbr) { wlv->need_showbreak = false; } // Correct end of highlighted area for 'breakindent', // required wen 'linebreak' is also set. if (wlv->tocol == wlv->vcol) { wlv->tocol += wlv->n_extra; } } } } static void handle_showbreak_and_filler(win_T *wp, winlinevars_T *wlv) { if (wlv->filler_todo > wlv->filler_lines - wlv->n_virt_lines) { // TODO(bfredl): check this doesn't inhibit TUI-style // clear-to-end-of-line. wlv->c_extra = ' '; wlv->c_final = NUL; wlv->n_extra = wp->w_grid.cols - wlv->col; wlv->char_attr = 0; } else if (wlv->filler_todo > 0) { // Draw "deleted" diff line(s) if (char2cells(wp->w_p_fcs_chars.diff) > 1) { wlv->c_extra = '-'; wlv->c_final = NUL; } else { wlv->c_extra = wp->w_p_fcs_chars.diff; wlv->c_final = NUL; } wlv->n_extra = wp->w_grid.cols - wlv->col; wlv->char_attr = win_hl_attr(wp, HLF_DED); } char *const sbr = get_showbreak_value(wp); if (*sbr != NUL && wlv->need_showbreak) { // Draw 'showbreak' at the start of each broken line. wlv->p_extra = sbr; wlv->c_extra = NUL; wlv->c_final = NUL; wlv->n_extra = (int)strlen(sbr); wlv->char_attr = win_hl_attr(wp, HLF_AT); if (wp->w_skipcol == 0 || wlv->startrow != 0 || !wp->w_p_wrap) { wlv->need_showbreak = false; } wlv->vcol_sbr = wlv->vcol + mb_charlen(sbr); // Correct start of highlighted area for 'showbreak'. if (wlv->fromcol >= wlv->vcol && wlv->fromcol < wlv->vcol_sbr) { wlv->fromcol = wlv->vcol_sbr; } // Correct end of highlighted area for 'showbreak', // required when 'linebreak' is also set. if (wlv->tocol == wlv->vcol) { wlv->tocol += wlv->n_extra; } // Combine 'showbreak' with 'cursorline', prioritizing 'showbreak'. if (wlv->cul_attr) { wlv->char_attr = hl_combine_attr(wlv->cul_attr, wlv->char_attr); } } } static void apply_cursorline_highlight(win_T *wp, winlinevars_T *wlv) { wlv->cul_attr = win_hl_attr(wp, HLF_CUL); HlAttrs ae = syn_attr2entry(wlv->cul_attr); // We make a compromise here (#7383): // * low-priority CursorLine if fg is not set // * high-priority ("same as Vim" priority) CursorLine if fg is set if (ae.rgb_fg_color == -1 && ae.cterm_fg_color == 0) { wlv->line_attr_lowprio = wlv->cul_attr; } else { if (!(State & MODE_INSERT) && bt_quickfix(wp->w_buffer) && qf_current_entry(wp) == wlv->lnum) { wlv->line_attr = hl_combine_attr(wlv->cul_attr, wlv->line_attr); } else { wlv->line_attr = wlv->cul_attr; } } } /// Checks if there is more inline virtual text that need to be drawn. static bool has_more_inline_virt(winlinevars_T *wlv, ptrdiff_t v) { if (wlv->virt_inline_i < kv_size(wlv->virt_inline)) { return true; } DecorState *state = &decor_state; for (size_t i = 0; i < kv_size(state->active); i++) { DecorRange *item = &kv_A(state->active, i); if (item->start_row != state->row || item->kind != kDecorKindVirtText || item->data.vt->pos != kVPosInline || item->data.vt->width == 0) { continue; } if (item->draw_col >= -1 && item->start_col >= v) { return true; } } return false; } static void handle_inline_virtual_text(win_T *wp, winlinevars_T *wlv, ptrdiff_t v) { while (wlv->n_extra == 0) { if (wlv->virt_inline_i >= kv_size(wlv->virt_inline)) { // need to find inline virtual text wlv->virt_inline = VIRTTEXT_EMPTY; wlv->virt_inline_i = 0; DecorState *state = &decor_state; for (size_t i = 0; i < kv_size(state->active); i++) { DecorRange *item = &kv_A(state->active, i); if (item->start_row != state->row || item->kind != kDecorKindVirtText || item->data.vt->pos != kVPosInline || item->data.vt->width == 0) { continue; } if (item->draw_col >= -1 && item->start_col == v) { wlv->virt_inline = item->data.vt->data.virt_text; wlv->virt_inline_hl_mode = item->data.vt->hl_mode; item->draw_col = INT_MIN; break; } } if (!kv_size(wlv->virt_inline)) { // no more inline virtual text here break; } } else { // already inside existing inline virtual text with multiple chunks int attr = 0; char *text = next_virt_text_chunk(wlv->virt_inline, &wlv->virt_inline_i, &attr); if (text == NULL) { continue; } wlv->p_extra = text; wlv->n_extra = (int)strlen(text); if (wlv->n_extra == 0) { continue; } wlv->c_extra = NUL; wlv->c_final = NUL; wlv->extra_attr = attr; wlv->n_attr = mb_charlen(text); // If the text didn't reach until the first window // column we need to skip cells. if (wlv->skip_cells > 0) { // FIXME: this should use virt_text_width instead int virt_text_len = wlv->n_attr; if (virt_text_len > wlv->skip_cells) { int len = mb_charlen2bytelen(wlv->p_extra, wlv->skip_cells); wlv->n_extra -= len; wlv->p_extra += len; wlv->n_attr -= wlv->skip_cells; // Skipped cells needed to be accounted for in vcol. wlv->skipped_cells += wlv->skip_cells; wlv->skip_cells = 0; } else { // the whole text is left of the window, drop // it and advance to the next one wlv->skip_cells -= virt_text_len; // Skipped cells needed to be accounted for in vcol. wlv->skipped_cells += virt_text_len; wlv->n_attr = 0; wlv->n_extra = 0; // go to the start so the next virtual text chunk can be selected. continue; } } assert(wlv->n_extra > 0); wlv->extra_for_extmark = true; } } } static colnr_T get_trailcol(win_T *wp, const char *ptr, const char *line) { colnr_T trailcol = MAXCOL; // find start of trailing whitespace if (wp->w_p_lcs_chars.trail) { trailcol = (colnr_T)strlen(ptr); while (trailcol > 0 && ascii_iswhite(ptr[trailcol - 1])) { trailcol--; } trailcol += (colnr_T)(ptr - line); } return trailcol; } static colnr_T get_leadcol(win_T *wp, const char *ptr, const char *line) { colnr_T leadcol = 0; // find end of leading whitespace if (wp->w_p_lcs_chars.lead || wp->w_p_lcs_chars.leadmultispace != NULL) { leadcol = 0; while (ascii_iswhite(ptr[leadcol])) { leadcol++; } if (ptr[leadcol] == NUL) { // in a line full of spaces all of them are treated as trailing leadcol = 0; } else { // keep track of the first column not filled with spaces leadcol += (colnr_T)(ptr - line + 1); } } return leadcol; } /// Start a screen line at column zero. 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 (save_extra) { // reset the drawing state for the start of a wrapped line wlv->draw_state = WL_START; wlv->saved_n_extra = wlv->n_extra; wlv->saved_p_extra = wlv->p_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; } } /// Called when wlv->draw_state is set to WL_LINE. static void win_line_continue(winlinevars_T *wlv) { if (wlv->saved_n_extra > 0) { // Continue item from end of wrapped line. wlv->n_extra = wlv->saved_n_extra; wlv->saved_n_extra = 0; wlv->c_extra = wlv->saved_c_extra; wlv->c_final = wlv->saved_c_final; wlv->p_extra = wlv->saved_p_extra; wlv->extra_for_extmark = wlv->saved_extra_for_extmark; wlv->char_attr = wlv->saved_char_attr; } else { wlv->char_attr = 0; } } /// Display line "lnum" of window "wp" on the screen. /// wp->w_virtcol needs to be valid. /// /// @param lnum line to display /// @param startrow first row relative to window grid /// @param endrow last grid row to be redrawn /// @param number_only only update the number column /// @param spv 'spell' related variables kept between calls for "wp" /// @param foldinfo fold info for this line /// @param[in, out] providers decoration providers active this line /// items will be disables if they cause errors /// or explicitly return `false`. /// /// @return the number of last row the line occupies. int win_line(win_T *wp, linenr_T lnum, int startrow, int endrow, bool number_only, spellvars_T *spv, foldinfo_T foldinfo, DecorProviders *providers) { winlinevars_T wlv; // variables passed between functions colnr_T vcol_prev = -1; // "wlv.vcol" of previous character char *line; // current line char *ptr; // current position in "line" ScreenGrid *grid = &wp->w_grid; // grid specific to the window static char *at_end_str = ""; // used for p_extra when displaying curwin->w_p_lcs_chars.eol // at end-of-line const bool has_fold = foldinfo.fi_level != 0 && foldinfo.fi_lines > 0; int saved_attr2 = 0; // char_attr saved for n_attr int n_attr3 = 0; // chars with overruling special attr int saved_attr3 = 0; // char_attr saved for n_attr3 int fromcol_prev = -2; // start of inverting after cursor bool noinvcur = false; // don't invert the cursor bool lnum_in_visual_area = false; pos_T pos; ptrdiff_t v; bool attr_pri = false; // char_attr has priority bool area_highlighting = false; // Visual or incsearch highlighting in this line int vi_attr = 0; // attributes for Visual and incsearch highlighting int area_attr = 0; // attributes desired by highlighting int search_attr = 0; // attributes desired by 'hlsearch' int vcol_save_attr = 0; // saved attr for 'cursorcolumn' int decor_attr = 0; // attributes desired by syntax and extmarks bool has_syntax = false; // this buffer has syntax highl. int folded_attr = 0; // attributes for folded line int save_did_emsg; int eol_hl_off = 0; // 1 if highlighted char after EOL bool draw_color_col = false; // highlight colorcolumn int *color_cols = NULL; // pointer to according columns array #define SPWORDLEN 150 char nextline[SPWORDLEN * 2]; // text with start of the next line int nextlinecol = 0; // column where nextline[] starts int nextline_idx = 0; // index in nextline[] where next line // starts int spell_attr = 0; // attributes desired by spelling int word_end = 0; // last byte with same spell_attr int cur_checked_col = 0; // checked column for current line int extra_check = 0; // has syntax or linebreak int multi_attr = 0; // attributes desired by multibyte int mb_l = 1; // multi-byte byte length int mb_c = 0; // decoded multi-byte character schar_T mb_schar; // complete screen char int change_start = MAXCOL; // first col of changed area int change_end = -1; // last col of changed area bool in_multispace = false; // in multiple consecutive spaces int multispace_pos = 0; // position in lcs-multispace string int line_attr_save; int line_attr_lowprio_save; bool search_attr_from_match = false; // if search_attr is from :match bool has_decor = false; // this buffer has decoration int saved_search_attr = 0; // search_attr to be used when n_extra goes to zero int saved_area_attr = 0; // idem for area_attr int saved_decor_attr = 0; // idem for decor_attr bool saved_search_attr_from_match = false; int win_col_offset = 0; // offset for window columns bool area_active = false; // whether in Visual selection, for virtual text bool decor_need_recheck = false; // call decor_recheck_draw_col() at next char char buf_fold[FOLD_TEXT_LEN]; // Hold value returned by get_foldtext VirtText fold_vt = VIRTTEXT_EMPTY; char *foldtext_free = NULL; // 'cursorlineopt' has "screenline" and cursor is in this line bool cul_screenline = false; // margin columns for the screen line, needed for when 'cursorlineopt' // contains "screenline" int left_curline_col = 0; int right_curline_col = 0; int match_conc = 0; ///< cchar for match functions bool on_last_col = false; int syntax_flags = 0; int syntax_seqnr = 0; int prev_syntax_id = 0; int conceal_attr = win_hl_attr(wp, HLF_CONCEAL); bool is_concealing = false; int did_wcol = false; int old_boguscols = 0; #define VCOL_HLC (wlv.vcol - wlv.vcol_off) #define FIX_FOR_BOGUSCOLS \ { \ wlv.n_extra += wlv.vcol_off; \ wlv.vcol -= wlv.vcol_off; \ wlv.vcol_off = 0; \ wlv.col -= wlv.boguscols; \ old_boguscols = wlv.boguscols; \ wlv.boguscols = 0; \ } assert(startrow < endrow); CLEAR_FIELD(wlv); wlv.lnum = lnum; wlv.foldinfo = foldinfo; wlv.startrow = startrow; wlv.row = startrow; wlv.fromcol = -10; wlv.tocol = MAXCOL; wlv.vcol_sbr = -1; buf_T *buf = wp->w_buffer; const bool end_fill = (lnum == buf->b_ml.ml_line_count + 1); if (!number_only) { // To speed up the loop below, set extra_check when there is linebreak, // trailing white space and/or syntax processing to be done. extra_check = wp->w_p_lbr; if (syntax_present(wp) && !wp->w_s->b_syn_error && !wp->w_s->b_syn_slow && !has_fold && !end_fill) { // Prepare for syntax highlighting in this line. When there is an // error, stop syntax highlighting. save_did_emsg = did_emsg; did_emsg = false; syntax_start(wp, lnum); if (did_emsg) { wp->w_s->b_syn_error = true; } else { did_emsg = save_did_emsg; if (!wp->w_s->b_syn_slow) { has_syntax = true; extra_check = true; } } } has_decor = decor_redraw_line(wp, lnum - 1, &decor_state); decor_providers_invoke_line(wp, providers, lnum - 1, &has_decor); if (has_decor) { extra_check = true; } // Check for columns to display for 'colorcolumn'. color_cols = wp->w_buffer->terminal ? NULL : wp->w_p_cc_cols; if (color_cols != NULL) { draw_color_col = advance_color_col(VCOL_HLC, &color_cols); } // handle Visual active in this window if (VIsual_active && wp->w_buffer == curwin->w_buffer) { pos_T *top, *bot; if (ltoreq(curwin->w_cursor, VIsual)) { // Visual is after curwin->w_cursor top = &curwin->w_cursor; bot = &VIsual; } else { // Visual is before curwin->w_cursor top = &VIsual; bot = &curwin->w_cursor; } lnum_in_visual_area = (lnum >= top->lnum && lnum <= bot->lnum); if (VIsual_mode == Ctrl_V) { // block mode if (lnum_in_visual_area) { wlv.fromcol = wp->w_old_cursor_fcol; wlv.tocol = wp->w_old_cursor_lcol; } } else { // non-block mode if (lnum > top->lnum && lnum <= bot->lnum) { wlv.fromcol = 0; } else if (lnum == top->lnum) { if (VIsual_mode == 'V') { // linewise wlv.fromcol = 0; } else { getvvcol(wp, top, (colnr_T *)&wlv.fromcol, NULL, NULL); if (gchar_pos(top) == NUL) { wlv.tocol = wlv.fromcol + 1; } } } if (VIsual_mode != 'V' && lnum == bot->lnum) { if (*p_sel == 'e' && bot->col == 0 && bot->coladd == 0) { wlv.fromcol = -10; wlv.tocol = MAXCOL; } else if (bot->col == MAXCOL) { wlv.tocol = MAXCOL; } else { pos = *bot; if (*p_sel == 'e') { getvvcol(wp, &pos, (colnr_T *)&wlv.tocol, NULL, NULL); } else { getvvcol(wp, &pos, NULL, NULL, (colnr_T *)&wlv.tocol); wlv.tocol++; } } } } // Check if the char under the cursor should be inverted (highlighted). if (!highlight_match && lnum == curwin->w_cursor.lnum && wp == curwin && cursor_is_block_during_visual(*p_sel == 'e')) { noinvcur = true; } // if inverting in this line set area_highlighting if (wlv.fromcol >= 0) { area_highlighting = true; vi_attr = win_hl_attr(wp, HLF_V); } // handle 'incsearch' and ":s///c" highlighting } else if (highlight_match && wp == curwin && !has_fold && lnum >= curwin->w_cursor.lnum && lnum <= curwin->w_cursor.lnum + search_match_lines) { if (lnum == curwin->w_cursor.lnum) { getvcol(curwin, &(curwin->w_cursor), (colnr_T *)&wlv.fromcol, NULL, NULL); } else { wlv.fromcol = 0; } if (lnum == curwin->w_cursor.lnum + search_match_lines) { pos.lnum = lnum; pos.col = search_match_endcol; getvcol(curwin, &pos, (colnr_T *)&wlv.tocol, NULL, NULL); } // do at least one character; happens when past end of line if (wlv.fromcol == wlv.tocol && search_match_endcol) { wlv.tocol = wlv.fromcol + 1; } area_highlighting = true; vi_attr = win_hl_attr(wp, HLF_I); } } int bg_attr = win_bg_attr(wp); int linestatus = 0; wlv.filler_lines = diff_check_with_linestatus(wp, lnum, &linestatus); if (wlv.filler_lines < 0 || linestatus < 0) { if (wlv.filler_lines == -1 || linestatus == -1) { if (diff_find_change(wp, lnum, &change_start, &change_end)) { wlv.diff_hlf = HLF_ADD; // added line } else if (change_start == 0) { wlv.diff_hlf = HLF_TXD; // changed text } else { wlv.diff_hlf = HLF_CHD; // changed line } } else { wlv.diff_hlf = HLF_ADD; // added line } if (linestatus == 0) { wlv.filler_lines = 0; } area_highlighting = true; } VirtLines virt_lines = KV_INITIAL_VALUE; wlv.n_virt_lines = decor_virt_lines(wp, lnum, &virt_lines, has_fold); wlv.filler_lines += wlv.n_virt_lines; if (lnum == wp->w_topline) { wlv.filler_lines = wp->w_topfill; wlv.n_virt_lines = MIN(wlv.n_virt_lines, wlv.filler_lines); } wlv.filler_todo = wlv.filler_lines; // Cursor line highlighting for 'cursorline' in the current window. if (wp->w_p_cul && wp->w_p_culopt_flags != CULOPT_NBR && lnum == wp->w_cursorline // Do not show the cursor line in the text when Visual mode is active, // because it's not clear what is selected then. && !(wp == curwin && VIsual_active)) { cul_screenline = (wp->w_p_wrap && (wp->w_p_culopt_flags & CULOPT_SCRLINE)); if (!cul_screenline) { apply_cursorline_highlight(wp, &wlv); } else { margin_columns_win(wp, &left_curline_col, &right_curline_col); } area_highlighting = true; } int line_attr = 0; int sign_cul_attr = 0; int sign_num_attr = 0; // TODO(bfredl, vigoux): line_attr should not take priority over decoration! decor_redraw_signs(wp, buf, wlv.lnum - 1, wlv.sattrs, &line_attr, &sign_cul_attr, &sign_num_attr); statuscol_T statuscol = { 0 }; if (*wp->w_p_stc != NUL) { // Draw the 'statuscolumn' if option is set. statuscol.draw = true; statuscol.sattrs = wlv.sattrs; statuscol.foldinfo = foldinfo; statuscol.width = win_col_off(wp) - (cmdwin_type != 0 && wp == curwin); statuscol.use_cul = use_cursor_line_highlight(wp, lnum); statuscol.sign_cul_id = statuscol.use_cul ? sign_cul_attr : 0; statuscol.num_attr = sign_num_attr > 0 ? syn_id2attr(sign_num_attr) : 0; } else { if (sign_cul_attr > 0) { sign_cul_attr = syn_id2attr(sign_cul_attr); } if (sign_num_attr > 0) { sign_num_attr = syn_id2attr(sign_num_attr); } } if (line_attr > 0) { wlv.line_attr = syn_id2attr(line_attr); } // Highlight the current line in the quickfix window. if (bt_quickfix(wp->w_buffer) && qf_current_entry(wp) == lnum) { wlv.line_attr = win_hl_attr(wp, HLF_QFL); } if (wlv.line_attr_lowprio || wlv.line_attr) { area_highlighting = true; } if (cul_screenline) { line_attr_save = wlv.line_attr; line_attr_lowprio_save = wlv.line_attr_lowprio; } if (spv->spv_has_spell && !number_only) { // Prepare for spell checking. extra_check = true; // When a word wrapped from the previous line the start of the // current line is valid. if (lnum == spv->spv_checked_lnum) { cur_checked_col = spv->spv_checked_col; } // Previous line was not spell checked, check for capital. This happens // for the first line in an updated region or after a closed fold. if (spv->spv_capcol_lnum == 0 && check_need_cap(wp, lnum, 0)) { spv->spv_cap_col = 0; } else if (lnum != spv->spv_capcol_lnum) { spv->spv_cap_col = -1; } spv->spv_checked_lnum = 0; // Get the start of the next line, so that words that wrap to the // next line are found too: "etal.". // Trick: skip a few chars for C/shell/Vim comments nextline[SPWORDLEN] = NUL; if (lnum < wp->w_buffer->b_ml.ml_line_count) { line = ml_get_buf(wp->w_buffer, lnum + 1); spell_cat_line(nextline + SPWORDLEN, line, SPWORDLEN); } assert(!end_fill); line = ml_get_buf(wp->w_buffer, lnum); // If current line is empty, check first word in next line for capital. ptr = skipwhite(line); if (*ptr == NUL) { spv->spv_cap_col = 0; spv->spv_capcol_lnum = lnum + 1; } else if (spv->spv_cap_col == 0) { // For checking first word with a capital skip white space. spv->spv_cap_col = (int)(ptr - line); } // Copy the end of the current line into nextline[]. if (nextline[SPWORDLEN] == NUL) { // No next line or it is empty. nextlinecol = MAXCOL; nextline_idx = 0; } else { v = (ptrdiff_t)strlen(line); if (v < SPWORDLEN) { // Short line, use it completely and append the start of the // next line. nextlinecol = 0; memmove(nextline, line, (size_t)v); STRMOVE(nextline + v, nextline + SPWORDLEN); nextline_idx = (int)v + 1; } else { // Long line, use only the last SPWORDLEN bytes. nextlinecol = (int)v - SPWORDLEN; memmove(nextline, line + nextlinecol, SPWORDLEN); nextline_idx = SPWORDLEN + 1; } } } line = end_fill ? "" : ml_get_buf(wp->w_buffer, lnum); ptr = line; colnr_T trailcol = MAXCOL; // start of trailing spaces colnr_T leadcol = 0; // start of leading spaces int lcs_eol_one = wp->w_p_lcs_chars.eol; // 'eol' until it's been used int lcs_prec_todo = wp->w_p_lcs_chars.prec; // 'prec' until it's been used if (wp->w_p_list && !has_fold && !end_fill) { if (wp->w_p_lcs_chars.space || wp->w_p_lcs_chars.multispace != NULL || wp->w_p_lcs_chars.leadmultispace != NULL || wp->w_p_lcs_chars.trail || wp->w_p_lcs_chars.lead || wp->w_p_lcs_chars.nbsp) { extra_check = true; } trailcol = get_trailcol(wp, ptr, line); leadcol = get_leadcol(wp, ptr, line); } // 'nowrap' or 'wrap' and a single line that doesn't fit: Advance to the // first character to be displayed. if (wp->w_p_wrap) { v = startrow == 0 ? wp->w_skipcol : 0; } else { v = wp->w_leftcol; } if (v > 0 && !number_only) { char *prev_ptr = ptr; chartabsize_T cts; int charsize = 0; int head = 0; init_chartabsize_arg(&cts, wp, lnum, wlv.vcol, line, ptr); cts.cts_max_head_vcol = (int)v; while (cts.cts_vcol < v && *cts.cts_ptr != NUL) { head = 0; charsize = win_lbr_chartabsize(&cts, &head); cts.cts_vcol += charsize; prev_ptr = cts.cts_ptr; MB_PTR_ADV(cts.cts_ptr); if (wp->w_p_list) { in_multispace = *prev_ptr == ' ' && (*cts.cts_ptr == ' ' || (prev_ptr > line && prev_ptr[-1] == ' ')); if (!in_multispace) { multispace_pos = 0; } else if (cts.cts_ptr >= line + leadcol && wp->w_p_lcs_chars.multispace != NULL) { multispace_pos++; if (wp->w_p_lcs_chars.multispace[multispace_pos] == NUL) { multispace_pos = 0; } } else if (cts.cts_ptr < line + leadcol && wp->w_p_lcs_chars.leadmultispace != NULL) { multispace_pos++; if (wp->w_p_lcs_chars.leadmultispace[multispace_pos] == NUL) { multispace_pos = 0; } } } } wlv.vcol = cts.cts_vcol; ptr = cts.cts_ptr; clear_chartabsize_arg(&cts); // When: // - 'cuc' is set, or // - 'colorcolumn' is set, or // - 'virtualedit' is set, or // - the visual mode is active, // the end of the line may be before the start of the displayed part. if (wlv.vcol < v && (wp->w_p_cuc || draw_color_col || virtual_active() || (VIsual_active && wp->w_buffer == curwin->w_buffer))) { wlv.vcol = (colnr_T)v; } // Handle a character that's not completely on the screen: Put ptr at // that character but skip the first few screen characters. if (wlv.vcol > v) { wlv.vcol -= charsize; ptr = prev_ptr; } if (v > wlv.vcol) { wlv.skip_cells = (int)v - wlv.vcol - head; } // Adjust for when the inverted text is before the screen, // and when the start of the inverted text is before the screen. if (wlv.tocol <= wlv.vcol) { wlv.fromcol = 0; } else if (wlv.fromcol >= 0 && wlv.fromcol < wlv.vcol) { wlv.fromcol = wlv.vcol; } // When w_skipcol is non-zero, first line needs 'showbreak' if (wp->w_p_wrap) { wlv.need_showbreak = true; } // When spell checking a word we need to figure out the start of the // word and if it's badly spelled or not. if (spv->spv_has_spell) { size_t len; colnr_T linecol = (colnr_T)(ptr - line); hlf_T spell_hlf = HLF_COUNT; pos = wp->w_cursor; wp->w_cursor.lnum = lnum; wp->w_cursor.col = linecol; len = spell_move_to(wp, FORWARD, true, true, &spell_hlf); // spell_move_to() may call ml_get() and make "line" invalid line = ml_get_buf(wp->w_buffer, lnum); ptr = line + linecol; if (len == 0 || (int)wp->w_cursor.col > ptr - line) { // no bad word found at line start, don't check until end of a // word spell_hlf = HLF_COUNT; word_end = (int)(spell_to_word_end(ptr, wp) - line + 1); } else { // bad word found, use attributes until end of word assert(len <= INT_MAX); word_end = wp->w_cursor.col + (int)len + 1; // Turn index into actual attributes. if (spell_hlf != HLF_COUNT) { spell_attr = highlight_attr[spell_hlf]; } } wp->w_cursor = pos; // Need to restart syntax highlighting for this line. if (has_syntax) { syntax_start(wp, lnum); } } } // Correct highlighting for cursor that can't be disabled. // Avoids having to check this for each character. if (wlv.fromcol >= 0) { if (noinvcur) { if ((colnr_T)wlv.fromcol == wp->w_virtcol) { // highlighting starts at cursor, let it start just after the // cursor fromcol_prev = wlv.fromcol; wlv.fromcol = -1; } else if ((colnr_T)wlv.fromcol < wp->w_virtcol) { // restart highlighting after the cursor fromcol_prev = wp->w_virtcol; } } if (wlv.fromcol >= wlv.tocol) { wlv.fromcol = -1; } } if (!number_only && !has_fold && !end_fill) { v = ptr - line; area_highlighting |= prepare_search_hl_line(wp, lnum, (colnr_T)v, &line, &screen_search_hl, &search_attr, &search_attr_from_match); ptr = line + v; // "line" may have been updated } win_line_start(wp, &wlv, false); // won't highlight after TERM_ATTRS_MAX columns int term_attrs[TERM_ATTRS_MAX] = { 0 }; if (wp->w_buffer->terminal) { terminal_get_line_attributes(wp->w_buffer->terminal, wp, lnum, term_attrs); extra_check = true; } int sign_idx = 0; int virt_line_index; int virt_line_offset = -1; // Repeat for the whole displayed line. while (true) { int has_match_conc = 0; ///< match wants to conceal int decor_conceal = 0; bool did_decrement_ptr = false; // Skip this quickly when working on the text. if (wlv.draw_state != WL_LINE) { if (cul_screenline) { wlv.cul_attr = 0; wlv.line_attr = line_attr_save; wlv.line_attr_lowprio = line_attr_lowprio_save; } if (wlv.draw_state == WL_CMDLINE - 1 && wlv.n_extra == 0) { wlv.draw_state = WL_CMDLINE; if (cmdwin_type != 0 && wp == curwin) { // Draw the cmdline character. wlv.n_extra = 1; wlv.c_extra = cmdwin_type; wlv.c_final = NUL; wlv.char_attr = win_hl_attr(wp, HLF_AT); } } if (wlv.draw_state == WL_FOLD - 1 && wlv.n_extra == 0) { if (wlv.filler_todo > 0) { int index = wlv.filler_todo - (wlv.filler_lines - wlv.n_virt_lines); if (index > 0) { virt_line_index = (int)kv_size(virt_lines) - index; assert(virt_line_index >= 0); virt_line_offset = kv_A(virt_lines, virt_line_index).left_col ? 0 : win_col_off(wp); } } if (virt_line_offset == 0) { // Skip the column states if there is a "virt_left_col" line. wlv.draw_state = WL_BRI - 1; } else if (statuscol.draw) { // Skip fold, sign and number states if 'statuscolumn' is set. wlv.draw_state = WL_STC - 1; } } if (wlv.draw_state == WL_FOLD - 1 && wlv.n_extra == 0) { wlv.draw_state = WL_FOLD; handle_foldcolumn(wp, &wlv); } // sign column, this is hit until sign_idx reaches count if (wlv.draw_state == WL_SIGN - 1 && wlv.n_extra == 0) { // Show the sign column when desired. wlv.draw_state = WL_SIGN; if (wp->w_scwidth > 0) { get_sign_display_info(false, wp, &wlv, sign_idx, sign_cul_attr); if (++sign_idx < wp->w_scwidth) { wlv.draw_state = WL_SIGN - 1; } else { sign_idx = 0; } } } if (wlv.draw_state == WL_NR - 1 && wlv.n_extra == 0) { // Show the line number, if desired. wlv.draw_state = WL_NR; handle_lnum_col(wp, &wlv, sign_num_attr, sign_cul_attr); } if (wlv.draw_state == WL_STC - 1 && wlv.n_extra == 0) { wlv.draw_state = WL_STC; // Draw the 'statuscolumn' if option is set. if (statuscol.draw) { if (sign_num_attr == 0) { statuscol.num_attr = get_line_number_attr(wp, &wlv); } if (statuscol.textp == NULL) { v = (ptr - line); get_statuscol_str(wp, lnum, wlv.row - startrow - wlv.filler_lines, &statuscol); if (!end_fill) { // Get the line again as evaluating 'statuscolumn' may free it. line = ml_get_buf(wp->w_buffer, lnum); ptr = line + v; } if (wp->w_redr_statuscol) { break; } } get_statuscol_display_info(&statuscol, &wlv); } } if (wlv.draw_state == WL_STC && wlv.n_extra == 0) { win_col_offset = wlv.off; } // Check if 'breakindent' applies and show it. // May change wlv.draw_state to WL_BRI or WL_BRI - 1. if (wlv.n_extra == 0) { handle_breakindent(wp, &wlv); } if (wlv.draw_state == WL_SBR - 1 && wlv.n_extra == 0) { wlv.draw_state = WL_SBR; handle_showbreak_and_filler(wp, &wlv); } if (wlv.draw_state == WL_LINE - 1 && wlv.n_extra == 0) { sign_idx = 0; wlv.draw_state = WL_LINE; if (has_decor && wlv.row == startrow + wlv.filler_lines) { // hide virt_text on text hidden by 'nowrap' or 'smoothscroll' decor_redraw_col(wp, (colnr_T)(ptr - line) - 1, wlv.off, true, &decor_state); } win_line_continue(&wlv); // use wlv.saved_ values } } if (cul_screenline && wlv.draw_state == WL_LINE && wlv.vcol >= left_curline_col && wlv.vcol < right_curline_col) { apply_cursorline_highlight(wp, &wlv); } // When still displaying '$' of change command, stop at cursor if (((dollar_vcol >= 0 && wp == curwin && lnum == wp->w_cursor.lnum && wlv.vcol >= wp->w_virtcol) || (number_only && wlv.draw_state > WL_STC)) && wlv.filler_todo <= 0) { draw_virt_text(wp, buf, win_col_offset, &wlv.col, wlv.row); // don't clear anything after wlv.col win_put_linebuf(wp, wlv.row, 0, wlv.col, wlv.col, bg_attr, false); // Pretend we have finished updating the window. Except when // 'cursorcolumn' is set. if (wp->w_p_cuc) { wlv.row = wp->w_cline_row + wp->w_cline_height; } else { wlv.row = grid->rows; } break; } const bool draw_folded = wlv.draw_state == WL_LINE && has_fold && wlv.row == startrow + wlv.filler_lines; if (draw_folded && wlv.n_extra == 0) { wlv.char_attr = folded_attr = win_hl_attr(wp, HLF_FL); } int extmark_attr = 0; if (wlv.draw_state == WL_LINE && (area_highlighting || spv->spv_has_spell || extra_check)) { if (wlv.n_extra == 0 || !wlv.extra_for_extmark) { wlv.reset_extra_attr = false; } if (has_decor && wlv.n_extra == 0) { // Duplicate the Visual area check after this block, // but don't check inside p_extra here. if (wlv.vcol == wlv.fromcol || (wlv.vcol + 1 == wlv.fromcol && (wlv.n_extra == 0 && utf_ptr2cells(ptr) > 1)) || (vcol_prev == fromcol_prev && vcol_prev < wlv.vcol && wlv.vcol < wlv.tocol)) { area_active = true; } else if (area_active && (wlv.vcol == wlv.tocol || (noinvcur && wlv.vcol == wp->w_virtcol))) { area_active = false; } bool selected = (area_active || (area_highlighting && noinvcur && wlv.vcol == wp->w_virtcol)); if (decor_need_recheck) { decor_recheck_draw_col(wlv.off, selected, &decor_state); decor_need_recheck = false; } extmark_attr = decor_redraw_col(wp, (colnr_T)v, wlv.off, selected, &decor_state); if (!has_fold && wp->w_buffer->b_virt_text_inline > 0) { handle_inline_virtual_text(wp, &wlv, v); if (wlv.n_extra > 0 && wlv.virt_inline_hl_mode <= kHlModeReplace) { // restore search_attr and area_attr when n_extra is down to zero // TODO(bfredl): this is ugly as fuck. look if we can do this some other way. saved_search_attr = search_attr; saved_area_attr = area_attr; saved_decor_attr = decor_attr; saved_search_attr_from_match = search_attr_from_match; search_attr = 0; area_attr = 0; decor_attr = 0; search_attr_from_match = false; } } } int *area_attr_p = wlv.extra_for_extmark && wlv.virt_inline_hl_mode <= kHlModeReplace ? &saved_area_attr : &area_attr; // handle Visual or match highlighting in this line if (wlv.vcol == wlv.fromcol || (wlv.vcol + 1 == wlv.fromcol && ((wlv.n_extra == 0 && utf_ptr2cells(ptr) > 1) || (wlv.n_extra > 0 && wlv.p_extra != NULL && utf_ptr2cells(wlv.p_extra) > 1))) || (vcol_prev == fromcol_prev && vcol_prev < wlv.vcol // not at margin && wlv.vcol < wlv.tocol)) { *area_attr_p = vi_attr; // start highlighting area_active = true; } else if (*area_attr_p != 0 && (wlv.vcol == wlv.tocol || (noinvcur && wlv.vcol == wp->w_virtcol))) { *area_attr_p = 0; // stop highlighting area_active = false; } if (!has_fold && wlv.n_extra == 0) { // Check for start/end of 'hlsearch' and other matches. // After end, check for start/end of next match. // When another match, have to check for start again. v = (ptr - line); search_attr = update_search_hl(wp, lnum, (colnr_T)v, &line, &screen_search_hl, &has_match_conc, &match_conc, lcs_eol_one, &on_last_col, &search_attr_from_match); ptr = line + v; // "line" may have been changed // Do not allow a conceal over EOL otherwise EOL will be missed // and bad things happen. if (*ptr == NUL) { has_match_conc = 0; } } if (wlv.diff_hlf != (hlf_T)0) { // When there is extra text (eg: virtual text) it gets the // diff highlighting for the line, but not for changed text. if (wlv.diff_hlf == HLF_CHD && ptr - line >= change_start && wlv.n_extra == 0) { wlv.diff_hlf = HLF_TXD; // changed text } if (wlv.diff_hlf == HLF_TXD && ((ptr - line > change_end && wlv.n_extra == 0) || (wlv.n_extra > 0 && wlv.extra_for_extmark))) { wlv.diff_hlf = HLF_CHD; // changed line } wlv.line_attr = win_hl_attr(wp, (int)wlv.diff_hlf); // Overlay CursorLine onto diff-mode highlight. if (wlv.cul_attr) { wlv.line_attr = 0 != wlv.line_attr_lowprio // Low-priority CursorLine ? hl_combine_attr(hl_combine_attr(wlv.cul_attr, wlv.line_attr), hl_get_underline()) : hl_combine_attr(wlv.line_attr, wlv.cul_attr); } } // Decide which of the highlight attributes to use. attr_pri = true; if (area_attr != 0) { wlv.char_attr = hl_combine_attr(wlv.line_attr, area_attr); if (!highlight_match) { // let search highlight show in Visual area if possible wlv.char_attr = hl_combine_attr(search_attr, wlv.char_attr); } } else if (search_attr != 0) { wlv.char_attr = hl_combine_attr(wlv.line_attr, search_attr); } else if (wlv.line_attr != 0 && ((wlv.fromcol == -10 && wlv.tocol == MAXCOL) || wlv.vcol < wlv.fromcol || vcol_prev < fromcol_prev || wlv.vcol >= wlv.tocol)) { // Use wlv.line_attr when not in the Visual or 'incsearch' area // (area_attr may be 0 when "noinvcur" is set). wlv.char_attr = wlv.line_attr; } else { attr_pri = false; wlv.char_attr = decor_attr; } if (folded_attr != 0) { wlv.char_attr = hl_combine_attr(folded_attr, wlv.char_attr); } } if (draw_folded && wlv.n_extra == 0 && wlv.col == win_col_offset) { linenr_T lnume = lnum + foldinfo.fi_lines - 1; memset(buf_fold, ' ', FOLD_TEXT_LEN); wlv.p_extra = get_foldtext(wp, lnum, lnume, foldinfo, buf_fold, &fold_vt); wlv.n_extra = (int)strlen(wlv.p_extra); if (wlv.p_extra != buf_fold) { foldtext_free = wlv.p_extra; } wlv.c_extra = NUL; wlv.c_final = NUL; wlv.p_extra[wlv.n_extra] = NUL; // Get the line again as evaluating 'foldtext' may free it. line = ml_get_buf(wp->w_buffer, lnum); ptr = line + v; } if (draw_folded && wlv.n_extra == 0 && wlv.col < grid->cols) { // Fill rest of line with 'fold'. wlv.c_extra = wp->w_p_fcs_chars.fold; wlv.c_final = NUL; wlv.n_extra = grid->cols - wlv.col; } if (draw_folded && wlv.n_extra != 0 && wlv.col >= grid->cols) { // Truncate the folding. wlv.n_extra = 0; } // Get the next character to put on the screen. // // The "p_extra" points to the extra stuff that is inserted to // represent special characters (non-printable stuff) and other // things. When all characters are the same, c_extra is used. // If c_final is set, it will compulsorily be used at the end. // "p_extra" must end in a NUL to avoid utfc_ptr2len() reads past // "p_extra[n_extra]". // For the '$' of the 'list' option, n_extra == 1, p_extra == "". if (wlv.n_extra > 0) { if (wlv.c_extra != NUL || (wlv.n_extra == 1 && wlv.c_final != NUL)) { mb_c = (wlv.n_extra == 1 && wlv.c_final != NUL) ? wlv.c_final : wlv.c_extra; mb_schar = schar_from_char(mb_c); wlv.n_extra--; } else { assert(wlv.p_extra != NULL); mb_l = utfc_ptr2len(wlv.p_extra); mb_schar = utfc_ptr2schar(wlv.p_extra, &mb_c); // mb_l=0 at the end-of-line NUL if (mb_l > wlv.n_extra || mb_l == 0) { mb_l = 1; } // If a double-width char doesn't fit display a '>' in the last column. // Don't advance the pointer but put the character at the start of the next line. if (wlv.col >= grid->cols - 1 && utf_char2cells(mb_c) == 2) { mb_c = '>'; mb_l = 1; (void)mb_l; mb_schar = schar_from_ascii(mb_c); multi_attr = win_hl_attr(wp, HLF_AT); if (wlv.cul_attr) { multi_attr = 0 != wlv.line_attr_lowprio ? hl_combine_attr(wlv.cul_attr, multi_attr) : hl_combine_attr(multi_attr, wlv.cul_attr); } } else { wlv.n_extra -= mb_l; wlv.p_extra += mb_l; } } // Only restore search_attr and area_attr after "n_extra" in // the next screen line is also done. if (wlv.n_extra <= 0) { if (wlv.saved_n_extra <= 0) { if (search_attr == 0) { search_attr = saved_search_attr; saved_search_attr = 0; } if (area_attr == 0 && *ptr != NUL) { area_attr = saved_area_attr; saved_area_attr = 0; } if (decor_attr == 0) { decor_attr = saved_decor_attr; saved_decor_attr = 0; } if (wlv.extra_for_extmark) { // wlv.extra_attr should be used at this position but not // any further. wlv.reset_extra_attr = true; } } wlv.extra_for_extmark = false; } } else if (has_fold) { // skip writing the buffer line itself mb_c = NUL; } else { char *prev_ptr = ptr; // first byte of next char int c0 = (uint8_t)(*ptr); if (c0 == NUL) { // no more cells to skip wlv.skip_cells = 0; } // Get a character from the line itself. mb_l = utfc_ptr2len(ptr); mb_schar = utfc_ptr2schar(ptr, &mb_c); // Overlong encoded ASCII or ASCII with composing char // is displayed normally, except a NUL. if (mb_l > 1 && mb_c < 0x80) { c0 = mb_c; } if ((mb_l == 1 && c0 >= 0x80) || (mb_l >= 1 && mb_c == 0) || (mb_l > 1 && (!vim_isprintc(mb_c)))) { // Illegal UTF-8 byte: display as . // Non-printable character : display as ? or fullwidth ?. transchar_hex(wlv.extra, mb_c); if (wp->w_p_rl) { // reverse rl_mirror_ascii(wlv.extra, NULL); } wlv.p_extra = wlv.extra; mb_c = mb_ptr2char_adv((const char **)&wlv.p_extra); mb_schar = schar_from_char(mb_c); wlv.n_extra = (int)strlen(wlv.p_extra); wlv.c_extra = NUL; wlv.c_final = NUL; if (area_attr == 0 && search_attr == 0) { wlv.n_attr = wlv.n_extra + 1; wlv.extra_attr = win_hl_attr(wp, HLF_8); saved_attr2 = wlv.char_attr; // save current attr } } else if (mb_l == 0) { // at the NUL at end-of-line mb_l = 1; } // If a double-width char doesn't fit display a '>' in the // last column; the character is displayed at the start of the // next line. if (wlv.col >= grid->cols - 1 && utf_char2cells(mb_c) == 2) { mb_c = '>'; mb_l = 1; mb_schar = schar_from_ascii(mb_c); multi_attr = win_hl_attr(wp, HLF_AT); // Put pointer back so that the character will be // displayed at the start of the next line. ptr--; did_decrement_ptr = true; } else if (*ptr != NUL) { ptr += mb_l - 1; } // If a double-width char doesn't fit at the left side display a '<' in // the first column. Don't do this for unprintable characters. if (wlv.skip_cells > 0 && mb_l > 1 && wlv.n_extra == 0) { wlv.n_extra = 1; wlv.c_extra = MB_FILLER_CHAR; wlv.c_final = NUL; mb_c = ' '; mb_l = 1; mb_schar = schar_from_ascii(mb_c); if (area_attr == 0 && search_attr == 0) { wlv.n_attr = wlv.n_extra + 1; wlv.extra_attr = win_hl_attr(wp, HLF_AT); saved_attr2 = wlv.char_attr; // save current attr } } ptr++; decor_attr = 0; if (extra_check) { bool no_plain_buffer = (wp->w_s->b_p_spo_flags & SPO_NPBUFFER) != 0; bool can_spell = !no_plain_buffer; // Get extmark and syntax attributes, unless still at the start of the line // (double-wide char that doesn't fit). v = (ptr - line); if (has_syntax && v > 0) { // Get the syntax attribute for the character. If there // is an error, disable syntax highlighting. save_did_emsg = did_emsg; did_emsg = false; decor_attr = get_syntax_attr((colnr_T)v - 1, spv->spv_has_spell ? &can_spell : NULL, false); if (did_emsg) { wp->w_s->b_syn_error = true; has_syntax = false; } else { did_emsg = save_did_emsg; } if (wp->w_s->b_syn_slow) { has_syntax = false; } // Need to get the line again, a multi-line regexp may // have made it invalid. line = ml_get_buf(wp->w_buffer, lnum); ptr = line + v; // no concealing past the end of the line, it interferes // with line highlighting. syntax_flags = (mb_c == 0) ? 0 : get_syntax_info(&syntax_seqnr); } if (has_decor && v > 0) { // extmarks take preceedence over syntax.c decor_attr = hl_combine_attr(decor_attr, extmark_attr); decor_conceal = decor_state.conceal; can_spell = TRISTATE_TO_BOOL(decor_state.spell, can_spell); } if (decor_attr) { if (!attr_pri) { if (wlv.cul_attr) { wlv.char_attr = 0 != wlv.line_attr_lowprio ? hl_combine_attr(wlv.cul_attr, decor_attr) : hl_combine_attr(decor_attr, wlv.cul_attr); } else { wlv.char_attr = decor_attr; } } else { wlv.char_attr = hl_combine_attr(decor_attr, wlv.char_attr); } } else if (!attr_pri) { wlv.char_attr = 0; } // Check spelling (unless at the end of the line). // Only do this when there is no syntax highlighting, the // @Spell cluster is not used or the current syntax item // contains the @Spell cluster. v = (ptr - line); if (spv->spv_has_spell && v >= word_end && v > cur_checked_col) { spell_attr = 0; // do not calculate cap_col at the end of the line or when // only white space is following if (mb_c != 0 && (*skipwhite(prev_ptr) != NUL) && can_spell) { char *p; hlf_T spell_hlf = HLF_COUNT; v -= mb_l - 1; // Use nextline[] if possible, it has the start of the // next line concatenated. if ((prev_ptr - line) - nextlinecol >= 0) { p = nextline + ((prev_ptr - line) - nextlinecol); } else { p = prev_ptr; } spv->spv_cap_col -= (int)(prev_ptr - line); size_t tmplen = spell_check(wp, p, &spell_hlf, &spv->spv_cap_col, spv->spv_unchanged); assert(tmplen <= INT_MAX); int len = (int)tmplen; word_end = (int)v + len; // In Insert mode only highlight a word that // doesn't touch the cursor. if (spell_hlf != HLF_COUNT && (State & MODE_INSERT) && wp->w_cursor.lnum == lnum && wp->w_cursor.col >= (colnr_T)(prev_ptr - line) && wp->w_cursor.col < (colnr_T)word_end) { spell_hlf = HLF_COUNT; spell_redraw_lnum = lnum; } if (spell_hlf == HLF_COUNT && p != prev_ptr && (p - nextline) + len > nextline_idx) { // Remember that the good word continues at the // start of the next line. spv->spv_checked_lnum = lnum + 1; spv->spv_checked_col = (int)((p - nextline) + len - nextline_idx); } // Turn index into actual attributes. if (spell_hlf != HLF_COUNT) { spell_attr = highlight_attr[spell_hlf]; } if (spv->spv_cap_col > 0) { if (p != prev_ptr && (p - nextline) + spv->spv_cap_col >= nextline_idx) { // Remember that the word in the next line // must start with a capital. spv->spv_capcol_lnum = lnum + 1; spv->spv_cap_col = (int)((p - nextline) + spv->spv_cap_col - nextline_idx); } else { // Compute the actual column. spv->spv_cap_col += (int)(prev_ptr - line); } } } } if (spell_attr != 0) { if (!attr_pri) { wlv.char_attr = hl_combine_attr(wlv.char_attr, spell_attr); } else { wlv.char_attr = hl_combine_attr(spell_attr, wlv.char_attr); } } if (wp->w_buffer->terminal) { 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 && mb_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 == mb_c && mb_c < 128 && wlv.need_lbr && vim_isbreak(mb_c) && !vim_isbreak((uint8_t)(*ptr))) { int mb_off = utf_head_off(line, ptr - 1); char *p = ptr - (mb_off + 1); chartabsize_T cts; init_chartabsize_arg(&cts, wp, lnum, wlv.vcol, line, p); // do not want virtual text to be counted here cts.cts_has_virt_text = false; wlv.n_extra = win_lbr_chartabsize(&cts, NULL) - 1; clear_chartabsize_arg(&cts); if (on_last_col && mb_c != TAB) { // Do not continue search/match highlighting over the // line break, but for TABs the highlighting should // include the complete width of the character search_attr = 0; } if (mb_c == TAB && wlv.n_extra + wlv.col > grid->cols) { wlv.n_extra = tabstop_padding(wlv.vcol, wp->w_buffer->b_p_ts, wp->w_buffer->b_p_vts_array) - 1; } wlv.c_extra = mb_off > 0 ? MB_FILLER_CHAR : ' '; wlv.c_final = NUL; if (mb_c < 128 && ascii_iswhite(mb_c)) { if (mb_c == TAB) { // See "Tab alignment" below. FIX_FOR_BOGUSCOLS; } if (!wp->w_p_list) { mb_c = ' '; mb_schar = schar_from_ascii(mb_c); } } } if (wp->w_p_list) { in_multispace = mb_c == ' ' && (*ptr == ' ' || (prev_ptr > line && prev_ptr[-1] == ' ')); if (!in_multispace) { multispace_pos = 0; } } // 'list': Change char 160 to 'nbsp' and space to 'space'. // But not when the character is followed by a composing // character (use mb_l to check that). if (wp->w_p_list && ((((mb_c == 160 && mb_l == 2) || (mb_c == 0x202f && mb_l == 3)) && wp->w_p_lcs_chars.nbsp) || (mb_c == ' ' && mb_l == 1 && (wp->w_p_lcs_chars.space || (in_multispace && wp->w_p_lcs_chars.multispace != NULL)) && ptr - line >= leadcol && ptr - line <= trailcol))) { if (in_multispace && wp->w_p_lcs_chars.multispace != NULL) { mb_c = wp->w_p_lcs_chars.multispace[multispace_pos++]; if (wp->w_p_lcs_chars.multispace[multispace_pos] == NUL) { multispace_pos = 0; } } else { mb_c = (mb_c == ' ') ? wp->w_p_lcs_chars.space : wp->w_p_lcs_chars.nbsp; } wlv.n_attr = 1; wlv.extra_attr = win_hl_attr(wp, HLF_0); saved_attr2 = wlv.char_attr; // save current attr mb_schar = schar_from_char(mb_c); } if (mb_c == ' ' && mb_l == 1 && ((trailcol != MAXCOL && ptr > line + trailcol) || (leadcol != 0 && ptr < line + leadcol))) { if (leadcol != 0 && in_multispace && ptr < line + leadcol && wp->w_p_lcs_chars.leadmultispace != NULL) { mb_c = wp->w_p_lcs_chars.leadmultispace[multispace_pos++]; if (wp->w_p_lcs_chars.leadmultispace[multispace_pos] == NUL) { multispace_pos = 0; } } else if (ptr > line + trailcol && wp->w_p_lcs_chars.trail) { mb_c = wp->w_p_lcs_chars.trail; } else if (ptr < line + leadcol && wp->w_p_lcs_chars.lead) { mb_c = wp->w_p_lcs_chars.lead; } else if (leadcol != 0 && wp->w_p_lcs_chars.space) { mb_c = wp->w_p_lcs_chars.space; } wlv.n_attr = 1; wlv.extra_attr = win_hl_attr(wp, HLF_0); saved_attr2 = wlv.char_attr; // save current attr mb_schar = schar_from_char(mb_c); } } // Handling of non-printable characters. if (!vim_isprintc(mb_c)) { // when getting a character from the file, we may have to // turn it into something else on the way to putting it on the screen. if (mb_c == TAB && (!wp->w_p_list || wp->w_p_lcs_chars.tab1)) { int tab_len = 0; colnr_T vcol_adjusted = wlv.vcol; // removed showbreak length char *const sbr = get_showbreak_value(wp); // Only adjust the tab_len, when at the first column after the // showbreak value was drawn. if (*sbr != NUL && wlv.vcol == wlv.vcol_sbr && wp->w_p_wrap) { vcol_adjusted = wlv.vcol - mb_charlen(sbr); } // tab amount depends on current column tab_len = tabstop_padding(vcol_adjusted, wp->w_buffer->b_p_ts, wp->w_buffer->b_p_vts_array) - 1; if (!wp->w_p_lbr || !wp->w_p_list) { wlv.n_extra = tab_len; } else { char *p; int saved_nextra = wlv.n_extra; if (wlv.vcol_off > 0) { // there are characters to conceal tab_len += wlv.vcol_off; } // boguscols before FIX_FOR_BOGUSCOLS macro from above. if (wp->w_p_lcs_chars.tab1 && old_boguscols > 0 && wlv.n_extra > tab_len) { tab_len += wlv.n_extra - tab_len; } if (tab_len > 0) { // If wlv.n_extra > 0, it gives the number of chars // to use for a tab, else we need to calculate the // width for a tab. int tab2_len = utf_char2len(wp->w_p_lcs_chars.tab2); int len = tab_len * tab2_len; if (wp->w_p_lcs_chars.tab3) { len += utf_char2len(wp->w_p_lcs_chars.tab3) - tab2_len; } if (wlv.n_extra > 0) { len += wlv.n_extra - tab_len; } mb_c = wp->w_p_lcs_chars.tab1; p = get_extra_buf((size_t)len + 1); memset(p, ' ', (size_t)len); p[len] = NUL; wlv.p_extra = p; for (int 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, 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); wlv.n_extra += utf_char2len(lcs) - (saved_nextra > 0 ? 1 : 0); } // n_extra will be increased by FIX_FOX_BOGUSCOLS // macro below, so need to adjust for that here if (wlv.vcol_off > 0) { wlv.n_extra -= wlv.vcol_off; } } } { int vc_saved = wlv.vcol_off; // Tab alignment should be identical regardless of // 'conceallevel' value. So tab compensates of all // previous concealed characters, and thus resets // vcol_off and boguscols accumulated so far in the // line. Note that the tab can be longer than // 'tabstop' when there are concealed characters. FIX_FOR_BOGUSCOLS; // Make sure, the highlighting for the tab char will be // correctly set further below (effectively reverts the // FIX_FOR_BOGSUCOLS macro). if (wlv.n_extra == tab_len + vc_saved && wp->w_p_list && wp->w_p_lcs_chars.tab1) { tab_len += vc_saved; } } if (wp->w_p_list) { mb_c = (wlv.n_extra == 0 && wp->w_p_lcs_chars.tab3) ? wp->w_p_lcs_chars.tab3 : wp->w_p_lcs_chars.tab1; if (wp->w_p_lbr && wlv.p_extra != NULL && *wlv.p_extra != NUL) { wlv.c_extra = NUL; // using p_extra from above } else { wlv.c_extra = wp->w_p_lcs_chars.tab2; } wlv.c_final = wp->w_p_lcs_chars.tab3; wlv.n_attr = tab_len + 1; wlv.extra_attr = win_hl_attr(wp, HLF_0); saved_attr2 = wlv.char_attr; // save current attr } else { wlv.c_final = NUL; wlv.c_extra = ' '; mb_c = ' '; } mb_schar = schar_from_char(mb_c); } else if (mb_c == NUL && (wp->w_p_list || ((wlv.fromcol >= 0 || fromcol_prev >= 0) && wlv.tocol > wlv.vcol && VIsual_mode != Ctrl_V && wlv.col < grid->cols && !(noinvcur && lnum == wp->w_cursor.lnum && wlv.vcol == wp->w_virtcol))) && lcs_eol_one > 0) { // Display a '$' after the line or highlight an extra // character if the line break is included. // For a diff line the highlighting continues after the "$". if (wlv.diff_hlf == (hlf_T)0 && wlv.line_attr == 0 && wlv.line_attr_lowprio == 0) { // In virtualedit, visual selections may extend beyond end of line if (!(area_highlighting && virtual_active() && wlv.tocol != MAXCOL && wlv.vcol < wlv.tocol)) { wlv.p_extra = at_end_str; } wlv.n_extra = 0; } if (wp->w_p_list && wp->w_p_lcs_chars.eol > 0) { mb_c = wp->w_p_lcs_chars.eol; } else { mb_c = ' '; } lcs_eol_one = -1; ptr--; // put it back at the NUL wlv.extra_attr = win_hl_attr(wp, HLF_AT); wlv.n_attr = 1; mb_schar = schar_from_char(mb_c); } else if (mb_c != NUL) { wlv.p_extra = transchar_buf(wp->w_buffer, mb_c); if (wlv.n_extra == 0) { wlv.n_extra = byte2cells(mb_c) - 1; } if ((dy_flags & DY_UHEX) && wp->w_p_rl) { rl_mirror_ascii(wlv.p_extra, NULL); // reverse "<12>" } wlv.c_extra = NUL; wlv.c_final = NUL; if (wp->w_p_lbr) { char *p; mb_c = (uint8_t)(*wlv.p_extra); p = get_extra_buf((size_t)wlv.n_extra + 1); memset(p, ' ', (size_t)wlv.n_extra); strncpy(p, // NOLINT(runtime/printf) wlv.p_extra + 1, (size_t)strlen(wlv.p_extra) - 1); p[wlv.n_extra] = NUL; wlv.p_extra = p; } else { wlv.n_extra = byte2cells(mb_c) - 1; mb_c = (uint8_t)(*wlv.p_extra++); } wlv.n_attr = wlv.n_extra + 1; wlv.extra_attr = win_hl_attr(wp, HLF_8); saved_attr2 = wlv.char_attr; // save current attr mb_schar = schar_from_ascii(mb_c); } else if (VIsual_active && (VIsual_mode == Ctrl_V || VIsual_mode == 'v') && virtual_active() && wlv.tocol != MAXCOL && wlv.vcol < wlv.tocol && wlv.col < grid->cols) { mb_c = ' '; mb_schar = schar_from_char(mb_c); ptr--; // put it back at the NUL } } if (wp->w_p_cole > 0 && (wp != curwin || lnum != wp->w_cursor.lnum || conceal_cursor_line(wp)) && ((syntax_flags & HL_CONCEAL) != 0 || has_match_conc > 0 || decor_conceal > 0) && !(lnum_in_visual_area && vim_strchr(wp->w_p_cocu, 'v') == NULL)) { wlv.char_attr = conceal_attr; bool is_conceal_char = false; if (((prev_syntax_id != syntax_seqnr && (syntax_flags & HL_CONCEAL) != 0) || has_match_conc > 1 || decor_conceal > 1) && (syn_get_sub_char() != NUL || (has_match_conc && match_conc) || (decor_conceal && decor_state.conceal_char) || wp->w_p_cole == 1) && wp->w_p_cole != 3) { // First time at this concealed item: display one // character. if (has_match_conc && match_conc) { mb_c = match_conc; } else if (decor_conceal && decor_state.conceal_char) { mb_schar = decor_state.conceal_char; mb_c = schar_get_first_codepoint(mb_schar); is_conceal_char = true; if (decor_state.conceal_attr) { wlv.char_attr = decor_state.conceal_attr; } } else if (syn_get_sub_char() != NUL) { mb_c = syn_get_sub_char(); } else if (wp->w_p_lcs_chars.conceal != NUL) { mb_c = wp->w_p_lcs_chars.conceal; } else { mb_c = ' '; } prev_syntax_id = syntax_seqnr; if (wlv.n_extra > 0) { wlv.vcol_off += wlv.n_extra; } wlv.vcol += wlv.n_extra; if (wp->w_p_wrap && wlv.n_extra > 0) { wlv.boguscols += wlv.n_extra; wlv.col += wlv.n_extra; } wlv.n_extra = 0; wlv.n_attr = 0; } else if (wlv.skip_cells == 0) { is_concealing = true; wlv.skip_cells = 1; } if (!is_conceal_char) { mb_schar = schar_from_char(mb_c); } } else { prev_syntax_id = 0; is_concealing = false; } if (wlv.skip_cells > 0 && did_decrement_ptr) { // not showing the '>', put pointer back to avoid getting stuck ptr++; } } // end of printing from buffer content // In the cursor line and we may be concealing characters: correct // the cursor column when we reach its position. if (!did_wcol && wlv.draw_state == WL_LINE && wp == curwin && lnum == wp->w_cursor.lnum && conceal_cursor_line(wp) && (int)wp->w_virtcol <= wlv.vcol + wlv.skip_cells) { wp->w_wcol = wlv.col - wlv.boguscols; wp->w_wrow = wlv.row; did_wcol = true; wp->w_valid |= VALID_WCOL|VALID_WROW|VALID_VIRTCOL; } // Don't override visual selection highlighting. if (wlv.n_attr > 0 && wlv.draw_state == WL_LINE && !search_attr_from_match) { wlv.char_attr = hl_combine_attr(wlv.char_attr, wlv.extra_attr); if (wlv.reset_extra_attr) { wlv.reset_extra_attr = false; wlv.extra_attr = 0; // search_attr_from_match can be restored now that the extra_attr has been applied search_attr_from_match = saved_search_attr_from_match; } } // Handle the case where we are in column 0 but not on the first // character of the line and the user wants us to show us a // special character (via 'listchars' option "precedes:". if (lcs_prec_todo != NUL && wp->w_p_list && (wp->w_p_wrap ? (wp->w_skipcol > 0 && wlv.row == 0) : wp->w_leftcol > 0) && wlv.filler_todo <= 0 && wlv.draw_state > WL_STC && mb_c != NUL) { mb_c = wp->w_p_lcs_chars.prec; lcs_prec_todo = NUL; if (utf_char2cells(mb_c) > 1) { // Double-width character being overwritten by the "precedes" // character, need to fill up half the character. wlv.c_extra = MB_FILLER_CHAR; wlv.c_final = NUL; wlv.n_extra = 1; wlv.n_attr = 2; wlv.extra_attr = win_hl_attr(wp, HLF_AT); } mb_schar = schar_from_char(mb_c); saved_attr3 = wlv.char_attr; // save current attr wlv.char_attr = win_hl_attr(wp, HLF_AT); // overwriting char_attr n_attr3 = 1; } // At end of the text line or just after the last character. if (mb_c == NUL && eol_hl_off == 0) { // flag to indicate whether prevcol equals startcol of search_hl or // one of the matches bool prevcol_hl_flag = get_prevcol_hl_flag(wp, &screen_search_hl, (colnr_T)(ptr - line) - 1); // Invert at least one char, used for Visual and empty line or // highlight match at end of line. If it's beyond the last // char on the screen, just overwrite that one (tricky!) Not // needed when a '$' was displayed for 'list'. if (wp->w_p_lcs_chars.eol == lcs_eol_one && ((area_attr != 0 && wlv.vcol == wlv.fromcol && (VIsual_mode != Ctrl_V || lnum == VIsual.lnum || lnum == curwin->w_cursor.lnum)) // highlight 'hlsearch' match at end of line || prevcol_hl_flag)) { int n = 0; if (wlv.col >= grid->cols) { n = -1; } if (n != 0) { // At the window boundary, highlight the last character // instead (better than nothing). wlv.off += n; wlv.col += n; } else { // Add a blank character to highlight. linebuf_char[wlv.off] = schar_from_ascii(' '); } if (area_attr == 0 && !has_fold) { // Use attributes from match with highest priority among // 'search_hl' and the match list. get_search_match_hl(wp, &screen_search_hl, (colnr_T)(ptr - line), &wlv.char_attr); } int eol_attr = wlv.char_attr; if (wlv.cul_attr) { eol_attr = hl_combine_attr(wlv.cul_attr, eol_attr); } linebuf_attr[wlv.off] = eol_attr; linebuf_vcol[wlv.off] = MAXCOL; wlv.col++; wlv.off++; wlv.vcol++; eol_hl_off = 1; } } // At end of the text line. if (mb_c == NUL) { // Highlight 'cursorcolumn' & 'colorcolumn' past end of the line. if (wp->w_p_wrap) { v = wlv.startrow == 0 ? wp->w_skipcol : 0; } else { v = wp->w_leftcol; } // check if line ends before left margin if (wlv.vcol < v + wlv.col - win_col_off(wp)) { wlv.vcol = (colnr_T)v + wlv.col - win_col_off(wp); } // Get rid of the boguscols now, we want to draw until the right // edge for 'cursorcolumn'. wlv.col -= wlv.boguscols; wlv.boguscols = 0; if (draw_color_col) { draw_color_col = advance_color_col(VCOL_HLC, &color_cols); } bool has_virttext = false; // Make sure alignment is the same regardless // if listchars=eol:X is used or not. int eol_skip = (wp->w_p_lcs_chars.eol == lcs_eol_one && eol_hl_off == 0 ? 1 : 0); if (has_decor) { has_virttext = decor_redraw_eol(wp, &decor_state, &wlv.line_attr, wlv.col + eol_skip); } if (((wp->w_p_cuc && wp->w_virtcol >= VCOL_HLC - eol_hl_off && wp->w_virtcol < grid->cols * (ptrdiff_t)(wlv.row - startrow + 1) + v && lnum != wp->w_cursor.lnum) || draw_color_col || wlv.line_attr_lowprio || wlv.line_attr || wlv.diff_hlf != 0 || has_virttext)) { int rightmost_vcol = 0; if (wp->w_p_cuc) { rightmost_vcol = wp->w_virtcol; } if (draw_color_col) { // determine rightmost colorcolumn to possibly draw for (int i = 0; color_cols[i] >= 0; i++) { if (rightmost_vcol < color_cols[i]) { rightmost_vcol = color_cols[i]; } } } int cuc_attr = win_hl_attr(wp, HLF_CUC); int mc_attr = win_hl_attr(wp, HLF_MC); int diff_attr = 0; if (wlv.diff_hlf == HLF_TXD) { wlv.diff_hlf = HLF_CHD; } if (wlv.diff_hlf != 0) { diff_attr = win_hl_attr(wp, (int)wlv.diff_hlf); } int base_attr = hl_combine_attr(wlv.line_attr_lowprio, diff_attr); if (base_attr || wlv.line_attr || has_virttext) { rightmost_vcol = INT_MAX; } while (wlv.col < grid->cols) { linebuf_char[wlv.off] = schar_from_ascii(' '); linebuf_vcol[wlv.off] = MAXCOL; wlv.col++; if (draw_color_col) { draw_color_col = advance_color_col(VCOL_HLC, &color_cols); } int col_attr = base_attr; if (wp->w_p_cuc && VCOL_HLC == wp->w_virtcol) { col_attr = cuc_attr; } else if (draw_color_col && VCOL_HLC == *color_cols) { col_attr = hl_combine_attr(wlv.line_attr_lowprio, mc_attr); } col_attr = hl_combine_attr(col_attr, wlv.line_attr); linebuf_attr[wlv.off] = col_attr; wlv.off++; if (VCOL_HLC >= rightmost_vcol) { break; } wlv.vcol += 1; } } // TODO(bfredl): integrate with the common beyond-the-end-loop if (wp->w_buffer->terminal) { // terminal buffers may need to highlight beyond the end of the logical line while (wlv.col >= 0 && wlv.col < grid->cols) { linebuf_char[wlv.off] = schar_from_ascii(' '); linebuf_attr[wlv.off] = wlv.vcol >= TERM_ATTRS_MAX ? 0 : term_attrs[wlv.vcol]; linebuf_vcol[wlv.off] = wlv.vcol; wlv.off++; wlv.vcol++; wlv.col++; } } if (kv_size(fold_vt) > 0) { draw_virt_text_item(buf, win_col_offset, fold_vt, kHlModeCombine, grid->cols, 0); } draw_virt_text(wp, buf, win_col_offset, &wlv.col, wlv.row); win_put_linebuf(wp, wlv.row, 0, wlv.col, grid->cols, bg_attr, false); wlv.row++; // Update w_cline_height and w_cline_folded if the cursor line was // updated (saves a call to plines_win() later). if (wp == curwin && lnum == curwin->w_cursor.lnum) { curwin->w_cline_row = startrow; curwin->w_cline_height = wlv.row - startrow; curwin->w_cline_folded = has_fold; curwin->w_valid |= (VALID_CHEIGHT|VALID_CROW); conceal_cursor_used = conceal_cursor_line(curwin); } break; } // Show "extends" character from 'listchars' if beyond the line end and // 'list' is set. if (wp->w_p_lcs_chars.ext != NUL && wlv.draw_state == WL_LINE && wp->w_p_list && !wp->w_p_wrap && wlv.filler_todo <= 0 && wlv.col == grid->cols - 1 && !has_fold) { if (has_decor && *ptr == NUL && lcs_eol_one == 0) { // Tricky: there might be a virtual text just _after_ the last char decor_redraw_col(wp, (colnr_T)v, wlv.off, false, &decor_state); } if (*ptr != NUL || lcs_eol_one > 0 || (wlv.n_extra > 0 && (wlv.c_extra != NUL || *wlv.p_extra != NUL)) || has_more_inline_virt(&wlv, v)) { mb_c = wp->w_p_lcs_chars.ext; wlv.char_attr = win_hl_attr(wp, HLF_AT); mb_schar = schar_from_char(mb_c); } } // advance to the next 'colorcolumn' if (draw_color_col) { draw_color_col = advance_color_col(VCOL_HLC, &color_cols); } // Highlight the cursor column if 'cursorcolumn' is set. But don't // highlight the cursor position itself. // Also highlight the 'colorcolumn' if it is different than // 'cursorcolumn' // Also highlight the 'colorcolumn' if 'breakindent' and/or 'showbreak' // options are set vcol_save_attr = -1; if ((wlv.draw_state == WL_LINE || wlv.draw_state == WL_BRI || wlv.draw_state == WL_SBR) && !lnum_in_visual_area && search_attr == 0 && area_attr == 0 && wlv.filler_todo <= 0) { if (wp->w_p_cuc && VCOL_HLC == wp->w_virtcol && lnum != wp->w_cursor.lnum) { vcol_save_attr = wlv.char_attr; wlv.char_attr = hl_combine_attr(win_hl_attr(wp, HLF_CUC), wlv.char_attr); } else if (draw_color_col && VCOL_HLC == *color_cols) { vcol_save_attr = wlv.char_attr; wlv.char_attr = hl_combine_attr(win_hl_attr(wp, HLF_MC), wlv.char_attr); } } // Apply lowest-priority line attr now, so everything can override it. if (wlv.draw_state == WL_LINE) { wlv.char_attr = hl_combine_attr(wlv.line_attr_lowprio, wlv.char_attr); } if (wlv.draw_state == WL_LINE) { vcol_prev = wlv.vcol; } // Store character to be displayed. // Skip characters that are left of the screen for 'nowrap'. if (wlv.draw_state < WL_LINE || wlv.skip_cells <= 0) { // Store the character. linebuf_char[wlv.off] = mb_schar; if (multi_attr) { linebuf_attr[wlv.off] = multi_attr; multi_attr = 0; } else { linebuf_attr[wlv.off] = wlv.char_attr; } if (wlv.draw_state > WL_STC && wlv.filler_todo <= 0) { linebuf_vcol[wlv.off] = wlv.vcol; } else if (wlv.draw_state == WL_FOLD) { if (wlv.n_closing > 0) { linebuf_vcol[wlv.off] = -3; wlv.n_closing--; } else { linebuf_vcol[wlv.off] = -2; } } else { linebuf_vcol[wlv.off] = -1; } if (utf_char2cells(mb_c) > 1) { // Need to fill two screen columns. wlv.off++; wlv.col++; // UTF-8: Put a 0 in the second screen char. linebuf_char[wlv.off] = 0; linebuf_attr[wlv.off] = linebuf_attr[wlv.off - 1]; if (wlv.draw_state > WL_STC && wlv.filler_todo <= 0) { linebuf_vcol[wlv.off] = ++wlv.vcol; } else { linebuf_vcol[wlv.off] = -1; } // When "wlv.tocol" is halfway through a character, set it to the end // of the character, otherwise highlighting won't stop. if (wlv.tocol == wlv.vcol) { wlv.tocol++; } } wlv.off++; wlv.col++; } else if (wp->w_p_cole > 0 && is_concealing) { wlv.skip_cells--; wlv.vcol_off++; if (wlv.n_extra > 0) { wlv.vcol_off += wlv.n_extra; } if (wp->w_p_wrap) { // Special voodoo required if 'wrap' is on. // // Advance the column indicator to force the line // drawing to wrap early. This will make the line // take up the same screen space when parts are concealed, // so that cursor line computations aren't messed up. // // To avoid the fictitious advance of 'wlv.col' causing // trailing junk to be written out of the screen line // we are building, 'boguscols' keeps track of the number // of bad columns we have advanced. if (wlv.n_extra > 0) { wlv.vcol += wlv.n_extra; wlv.col += wlv.n_extra; wlv.boguscols += wlv.n_extra; wlv.n_extra = 0; wlv.n_attr = 0; } if (utf_char2cells(mb_c) > 1) { // Need to fill two screen columns. wlv.boguscols++; wlv.col++; } wlv.boguscols++; wlv.col++; } else { if (wlv.n_extra > 0) { wlv.vcol += wlv.n_extra; wlv.n_extra = 0; wlv.n_attr = 0; } } } else { wlv.skip_cells--; } // The skipped cells need to be accounted for in vcol. if (wlv.draw_state > WL_STC && wlv.skipped_cells > 0) { wlv.vcol += wlv.skipped_cells; wlv.skipped_cells = 0; } // Only advance the "wlv.vcol" when after the 'number' or // 'relativenumber' column. if (wlv.draw_state > WL_STC && wlv.filler_todo <= 0) { wlv.vcol++; } if (vcol_save_attr >= 0) { wlv.char_attr = vcol_save_attr; } // restore attributes after "predeces" in 'listchars' if (wlv.draw_state > WL_STC && n_attr3 > 0 && --n_attr3 == 0) { wlv.char_attr = saved_attr3; } // restore attributes after last 'listchars' or 'number' char if (wlv.n_attr > 0 && wlv.draw_state == WL_LINE && --wlv.n_attr == 0) { wlv.char_attr = saved_attr2; } if (has_decor && wlv.filler_todo <= 0 && wlv.col >= grid->cols) { // At the end of screen line: might need to peek for decorations just after // this position. if (!has_fold && wp->w_p_wrap && wlv.n_extra == 0) { decor_redraw_col(wp, (int)(ptr - line), -3, false, &decor_state); // Check position/hiding of virtual text again on next screen line. decor_need_recheck = true; } else if (has_fold || !wp->w_p_wrap) { // Without wrapping, we might need to display right_align and win_col // virt_text for the entire text line. decor_redraw_col(wp, MAXCOL, -1, true, &decor_state); } } // At end of screen line and there is more to come: Display the line // so far. If there is no more to display it is caught above. if (wlv.col >= grid->cols && (!has_fold || virt_line_offset >= 0) && (wlv.draw_state != WL_LINE || *ptr != NUL || wlv.filler_todo > 0 || (wp->w_p_list && wp->w_p_lcs_chars.eol != NUL && wlv.p_extra != at_end_str) || (wlv.n_extra != 0 && (wlv.c_extra != NUL || *wlv.p_extra != NUL)) || has_more_inline_virt(&wlv, v))) { bool wrap = wp->w_p_wrap // Wrapping enabled. && wlv.filler_todo <= 0 // Not drawing diff filler lines. && lcs_eol_one != -1 // Haven't printed the lcs_eol character. && wlv.row != endrow - 1 // Not the last line being displayed. && (grid->cols == Columns // Window spans the width of the screen, || ui_has(kUIMultigrid)) // or has dedicated grid. && !wp->w_p_rl; // Not right-to-left. int draw_col = wlv.col - wlv.boguscols; if (virt_line_offset >= 0) { draw_virt_text_item(buf, virt_line_offset, kv_A(virt_lines, virt_line_index).line, kHlModeReplace, grid->cols, 0); } else if (wlv.filler_todo <= 0) { draw_virt_text(wp, buf, win_col_offset, &draw_col, wlv.row); } win_put_linebuf(wp, wlv.row, 0, draw_col, grid->cols, bg_attr, wrap); if (wrap) { ScreenGrid *current_grid = grid; int current_row = wlv.row; int dummy_col = 0; // unused grid_adjust(¤t_grid, ¤t_row, &dummy_col); // Force a redraw of the first column of the next line. current_grid->attrs[current_grid->line_offset[current_row + 1]] = -1; } wlv.boguscols = 0; wlv.vcol_off = 0; wlv.row++; // When not wrapping and finished diff lines, or when displayed // '$' and highlighting until last column, break here. if ((!wp->w_p_wrap && wlv.filler_todo <= 0) || lcs_eol_one == -1) { break; } // When the window is too narrow draw all "@" lines. if (wlv.draw_state != WL_LINE && wlv.filler_todo <= 0) { win_draw_end(wp, '@', ' ', true, wlv.row, wp->w_grid.rows, HLF_AT); set_empty_rows(wp, wlv.row); wlv.row = endrow; } // When line got too long for screen break here. if (wlv.row == endrow) { wlv.row++; break; } win_line_start(wp, &wlv, true); lcs_prec_todo = wp->w_p_lcs_chars.prec; if (wlv.filler_todo <= 0) { wlv.need_showbreak = true; } if (statuscol.draw) { if (vim_strchr(p_cpo, CPO_NUMCOL) && wlv.row > startrow + wlv.filler_lines) { statuscol.draw = false; // don't draw status column if "n" is in 'cpo' } else { statuscol.textp = NULL; // re-evaluate with new v:virtnum } } wlv.filler_todo--; virt_line_offset = -1; // When the filler lines are actually below the last line of the // file, don't draw the line itself, break here. if (wlv.filler_todo == 0 && (wp->w_botfill || end_fill)) { break; } } } // for every character in the line clear_virttext(&fold_vt); kv_destroy(virt_lines); xfree(foldtext_free); return wlv.row; } static void win_put_linebuf(win_T *wp, int row, int coloff, int endcol, int clear_width, int bg_attr, bool wrap) { ScreenGrid *grid = &wp->w_grid; int start_col = 0; if (wp->w_p_rl) { linebuf_mirror(&start_col, &clear_width, grid->cols); endcol = grid->cols - 1 - endcol; } // Take care of putting "<<<" on the first line for 'smoothscroll'. if (row == 0 && wp->w_skipcol > 0 // do not overwrite the 'showbreak' text with "<<<" && *get_showbreak_value(wp) == NUL // do not overwrite the 'listchars' "precedes" text with "<<<" && !(wp->w_p_list && wp->w_p_lcs_chars.prec != 0)) { int off = 0; if (wp->w_p_nu && wp->w_p_rnu) { // do not overwrite the line number, change "123 text" to "123<<cols && ascii_isdigit(schar_get_ascii(linebuf_char[off]))) { off++; } } for (int i = 0; i < 3 && off < grid->cols; i++) { if (off + 1 < grid->cols && linebuf_char[off + 1] == NUL) { // When the first half of a double-width character is // overwritten, change the second half to a space. linebuf_char[off + 1] = schar_from_ascii(' '); } linebuf_char[off] = schar_from_ascii('<'); linebuf_attr[off] = HL_ATTR(HLF_AT); off++; } } grid_adjust(&grid, &row, &coloff); grid_put_linebuf(grid, row, coloff, start_col, endcol, clear_width, wp->w_p_rl, bg_attr, wrap); }