// 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/buffer_defs.h" #include "nvim/charset.h" #include "nvim/cursor.h" #include "nvim/cursor_shape.h" #include "nvim/decoration.h" #include "nvim/decoration_defs.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/grid_defs.h" #include "nvim/highlight.h" #include "nvim/highlight_defs.h" #include "nvim/highlight_group.h" #include "nvim/indent.h" #include "nvim/insexpand.h" #include "nvim/mark_defs.h" #include "nvim/marktree_defs.h" #include "nvim/match.h" #include "nvim/mbyte.h" #include "nvim/mbyte_defs.h" #include "nvim/memline.h" #include "nvim/memory.h" #include "nvim/move.h" #include "nvim/option.h" #include "nvim/option_vars.h" #include "nvim/os/os_defs.h" #include "nvim/plines.h" #include "nvim/pos_defs.h" #include "nvim/quickfix.h" #include "nvim/sign_defs.h" #include "nvim/spell.h" #include "nvim/state.h" #include "nvim/state_defs.h" #include "nvim/statusline.h" #include "nvim/statusline_defs.h" #include "nvim/strings.h" #include "nvim/syntax.h" #include "nvim/terminal.h" #include "nvim/types_defs.h" #include "nvim/ui.h" #include "nvim/ui_defs.h" #include "nvim/vim_defs.h" #define MB_FILLER_CHAR '<' // character used when a double-width character doesn't fit. /// structure with variables passed between win_line() and other functions typedef struct { const linenr_T lnum; ///< line number to be drawn const foldinfo_T foldinfo; ///< fold info for this line const 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 old_boguscols; ///< bogus boguscols int vcol_off_co; ///< 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 sign_num_attr; ///< line number attribute (sign numhl) int sign_cul_attr; ///< cursorline sign attribute (sign culhl) 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 sc_extra and sc_final are NUL int extra_attr; ///< attributes for p_extra schar_T sc_extra; ///< extra chars, all the same schar_T sc_final; ///< final char, mandatory if set bool extra_for_extmark; ///< n_extra set for inline virtual text char extra[11]; ///< must be as large as transchar_charbuf[] in charset.c 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 int *color_cols; ///< if not NULL, highlight colorcolumn using according columns array } 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 wlv->color_cols if not NULL static void advance_color_col(winlinevars_T *wlv, int vcol) { if (wlv->color_cols) { while (*wlv->color_cols >= 0 && vcol > *wlv->color_cols) { wlv->color_cols++; } if (*wlv->color_cols < 0) { wlv->color_cols = NULL; } } } /// 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_width1; static int prev_width2; static int prev_left_col; static int prev_right_col; int cur_col_off = win_col_off(wp); int width1 = wp->w_width_inner - cur_col_off; int width2 = width1 + win_col_off2(wp); if (saved_w_virtcol == wp->w_virtcol && prev_wp == wp && prev_width1 == width1 && prev_width2 == width2) { *right_col = prev_right_col; *left_col = prev_left_col; return; } *left_col = 0; *right_col = width1; if (wp->w_virtcol >= (colnr_T)width1 && width2 > 0) { *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; prev_width1 = width1; prev_width2 = width2; saved_w_virtcol = wp->w_virtcol; } /// 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) { // Caller should handle overwriting the right half of a double-width char. assert(dest[0] != 0); 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); } // When overwriting the left half of a double-width char, clear the right half. 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 *const state = &decor_state; int const max_col = wp->w_grid.cols; int right_pos = max_col; bool const do_eol = state->eol_col > -1; int const end = state->current_end; int *const indices = state->ranges_i.items; DecorRangeSlot *const slots = state->slots.items; /// Total width of all virtual text with "eol_right_align" alignment int totalWidthOfEolRightAlignedVirtText = 0; for (int i = 0; i < end; i++) { DecorRange *item = &slots[indices[i]].range; 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 (do_eol && pos == kVPosEndOfLineRightAlign) { int eolOffset = 0; if (totalWidthOfEolRightAlignedVirtText == 0) { // Look ahead to the remaining decor items for (int j = i; j < end; j++) { /// A future decor to be handled in this function's call DecorRange *lookaheadItem = &slots[indices[j]].range; if (lookaheadItem->start_row != state->row || !decor_virt_pos(lookaheadItem) || lookaheadItem->draw_col != -1) { continue; } /// The Virtual Text of the decor item we're looking ahead to DecorVirtText *lookaheadVt = NULL; if (item->kind == kDecorKindVirtText) { assert(item->data.vt); lookaheadVt = item->data.vt; } if (decor_virt_pos_kind(lookaheadItem) == kVPosEndOfLineRightAlign) { // An extra space is added for single character spacing in EOL alignment totalWidthOfEolRightAlignedVirtText += (lookaheadVt->width + 1); } } // Remove one space from the total width since there's no single space after the last entry totalWidthOfEolRightAlignedVirtText--; if (totalWidthOfEolRightAlignedVirtText <= (right_pos - state->eol_col)) { eolOffset = right_pos - totalWidthOfEolRightAlignedVirtText - state->eol_col; } } item->draw_col = state->eol_col + eolOffset; } else 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; } if (item->kind == kDecorKindUIWatched) { // send mark position to UI WinExtmark m = { (NS)item->data.ui.ns_id, item->data.ui.mark_id, win_row, item->draw_col }; kv_push(win_extmark_arr, m); } if (vt) { int vcol = item->draw_col - col_off; int col = draw_virt_text_item(buf, item->draw_col, vt->data.virt_text, vt->hl_mode, max_col, vcol); if (do_eol && ((vt->pos == kVPosEndOfLine) || (vt->pos == kVPosEndOfLineRightAlign))) { state->eol_col = col + 1; } *end_col = MAX(*end_col, col); } if (!vt || !(vt->flags & kVTRepeatLinebreak)) { item->draw_col = INT_MIN; // deactivate } } } 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] = { schar_from_ascii(' '), schar_from_ascii(' ') }; int maxcells = max_col - col; // When overwriting the right half of a double-width char, clear the left half. if (!through && linebuf_char[col] == 0) { assert(col > 0); linebuf_char[col - 1] = schar_from_ascii(' '); // Clear the right half as well for the assertion in line_putchar(). linebuf_char[col] = schar_from_ascii(' '); } 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; } // TODO(bfredl): integrate with grid.c linebuf code? madness? static void draw_col_buf(win_T *wp, winlinevars_T *wlv, const char *text, size_t len, int attr, const colnr_T *fold_vcol, bool inc_vcol) { const char *ptr = text; while (ptr < text + len && wlv->off < wp->w_grid.cols) { int cells = line_putchar(wp->w_buffer, &ptr, &linebuf_char[wlv->off], wp->w_grid.cols - wlv->off, wlv->off); int myattr = attr; if (inc_vcol) { advance_color_col(wlv, wlv->vcol); if (wlv->color_cols && wlv->vcol == *wlv->color_cols) { myattr = hl_combine_attr(win_hl_attr(wp, HLF_MC), myattr); } } for (int c = 0; c < cells; c++) { linebuf_attr[wlv->off] = myattr; linebuf_vcol[wlv->off] = inc_vcol ? wlv->vcol++ : fold_vcol ? *(fold_vcol++) : -1; wlv->off++; } } } static void draw_col_fill(winlinevars_T *wlv, schar_T fillchar, int width, int attr) { for (int i = 0; i < width; i++) { linebuf_char[wlv->off] = fillchar; linebuf_attr[wlv->off] = attr; wlv->off++; } } /// Return true if CursorLineSign highlight is to be used. 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 & kOptCuloptFlagNumber); } /// Setup for drawing the 'foldcolumn', if there is one. static void draw_foldcolumn(win_T *wp, winlinevars_T *wlv) { int fdc = compute_foldcolumn(wp, 0); if (fdc > 0) { int attr = win_hl_attr(wp, use_cursor_line_highlight(wp, wlv->lnum) ? HLF_CLF : HLF_FC); fill_foldcolumn(wp, wlv->foldinfo, wlv->lnum, attr, fdc, &wlv->off, NULL, NULL); } } /// Draw the foldcolumn or fill "out_buffer". Assume monocell characters. /// /// @param fdc Current width of the foldcolumn /// @param[out] wlv_off Pointer to linebuf offset, incremented for default column /// @param[out] out_buffer Char array to fill, only used for 'statuscolumn' /// @param[out] out_vcol vcol array to fill, only used for 'statuscolumn' void fill_foldcolumn(win_T *wp, foldinfo_T foldinfo, linenr_T lnum, int attr, int fdc, int *wlv_off, colnr_T *out_vcol, schar_T *out_buffer) { bool closed = foldinfo.fi_level != 0 && foldinfo.fi_lines > 0; 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 = MAX(level - fdc - closed + 1, 1); int closedcol = MIN(fdc, level); for (int i = 0; i < fdc; i++) { schar_T symbol = 0; if (i >= level) { symbol = schar_from_ascii(' '); } else if (i == closedcol - 1 && closed) { symbol = wp->w_p_fcs_chars.foldclosed; } else 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 = schar_from_ascii('0' + first_level + i); } else { symbol = schar_from_ascii('>'); } int vcol = i >= level ? -1 : (i == closedcol - 1 && closed) ? -2 : -3; if (out_buffer) { out_vcol[i] = vcol; out_buffer[i] = symbol; } else { linebuf_vcol[*wlv_off] = vcol; linebuf_attr[*wlv_off] = attr; linebuf_char[(*wlv_off)++] = symbol; } } } /// 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 draw_sign(bool nrcol, win_T *wp, winlinevars_T *wlv, int sign_idx) { SignTextAttrs sattr = wlv->sattrs[sign_idx]; int scl_attr = win_hl_attr(wp, use_cursor_line_highlight(wp, wlv->lnum) ? HLF_CLS : HLF_SC); if (sattr.text[0] && wlv->row == wlv->startrow + wlv->filler_lines && wlv->filler_todo <= 0) { int fill = nrcol ? number_width(wp) + 1 : SIGN_WIDTH; int attr = wlv->sign_cul_attr ? wlv->sign_cul_attr : sattr.hl_id ? syn_id2attr(sattr.hl_id) : 0; attr = hl_combine_attr(scl_attr, attr); draw_col_fill(wlv, schar_from_ascii(' '), fill, attr); int sign_pos = wlv->off - SIGN_WIDTH - (int)nrcol; assert(sign_pos >= 0); linebuf_char[sign_pos] = sattr.text[0]; linebuf_char[sign_pos + 1] = sattr.text[1]; } else { assert(!nrcol); // handled in draw_lnum_col() draw_col_fill(wlv, schar_from_ascii(' '), SIGN_WIDTH, scl_attr); } } 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 & kOptCuloptFlagNumber) && (wlv->row == wlv->startrow + wlv->filler_lines || (wlv->row > wlv->startrow + wlv->filler_lines && (wp->w_p_culopt_flags & kOptCuloptFlagLine))); } 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 draw_lnum_col(win_T *wp, winlinevars_T *wlv) { 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[0] && wlv->row == wlv->startrow + wlv->filler_lines && wlv->filler_todo <= 0) { draw_sign(true, wp, wlv, 0); } else { // Draw the line number (empty space after wrapping). int width = number_width(wp) + 1; int attr = hl_combine_attr(get_line_number_attr(wp, wlv), wlv->filler_todo <= 0 ? wlv->sign_num_attr : 0); if (wlv->row == wlv->startrow + wlv->filler_lines && (wp->w_skipcol == 0 || wlv->row > 0 || (wp->w_p_nu && wp->w_p_rnu))) { char buf[32]; get_line_number_str(wp, wlv->lnum, buf, sizeof(buf)); if (wp->w_skipcol > 0 && wlv->startrow == 0) { for (char *c = buf; *c == ' '; c++) { *c = '-'; } } if (wp->w_p_rl) { // reverse line numbers char *num = skipwhite(buf); rl_mirror_ascii(num, skiptowhite(num)); } draw_col_buf(wp, wlv, buf, (size_t)width, attr, NULL, false); } else { draw_col_fill(wlv, schar_from_ascii(' '), width, attr); } } } } /// Build and draw the 'statuscolumn' string for line "lnum" in window "wp". static void draw_statuscol(win_T *wp, winlinevars_T *wlv, linenr_T lnum, int virtnum, int col_rows, 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; char buf[MAXPATHL]; // When a buffer's line count has changed, make a best estimate for the full // width of the status column by building with the largest possible line number. // 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); int width = build_statuscol_str(wp, wp->w_nrwidth_line_count, wp->w_nrwidth_line_count, buf, stcp); if (width > stcp->width) { int addwidth = MIN(width - stcp->width, MAX_STCWIDTH - stcp->width); wp->w_nrwidth += addwidth; wp->w_nrwidth_width = wp->w_nrwidth; if (col_rows > 0) { // If only column is being redrawn, we now need to redraw the text as well wp->w_redr_statuscol = true; return; } stcp->width += addwidth; wp->w_valid &= ~VALID_WCOL; } } set_vim_var_nr(VV_VIRTNUM, virtnum); int width = build_statuscol_str(wp, lnum, relnum, buf, stcp); // Force a redraw in case of error or when truncated if (*wp->w_p_stc == NUL || (width > stcp->width && stcp->width < MAX_STCWIDTH)) { if (*wp->w_p_stc == NUL) { // '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); } else { // Avoid truncating 'statuscolumn' wp->w_nrwidth += MIN(width - stcp->width, MAX_STCWIDTH - stcp->width); wp->w_nrwidth_width = wp->w_nrwidth; } wp->w_redr_statuscol = true; return; } char *p = buf; char transbuf[MAXPATHL]; colnr_T *fold_vcol = NULL; size_t len = strlen(buf); int scl_attr = win_hl_attr(wp, use_cursor_line_highlight(wp, wlv->lnum) ? HLF_CLS : HLF_SC); int num_attr = hl_combine_attr(get_line_number_attr(wp, wlv), wlv->filler_todo <= 0 ? wlv->sign_num_attr : 0); int cur_attr = num_attr; // Draw each segment with the specified highlighting. for (stl_hlrec_t *sp = stcp->hlrec; sp->start != NULL; sp++) { ptrdiff_t textlen = sp->start - p; // Make all characters printable. size_t translen = transstr_buf(p, textlen, transbuf, MAXPATHL, true); draw_col_buf(wp, wlv, transbuf, translen, cur_attr, fold_vcol, false); int attr = sp->item == STL_SIGNCOL ? scl_attr : sp->item == STL_FOLDCOL ? 0 : num_attr; cur_attr = hl_combine_attr(attr, sp->userhl < 0 ? syn_id2attr(-sp->userhl) : 0); fold_vcol = sp->item == STL_FOLDCOL ? stcp->fold_vcol : NULL; p = sp->start; } size_t translen = transstr_buf(p, buf + len - p, transbuf, MAXPATHL, true); draw_col_buf(wp, wlv, transbuf, translen, cur_attr, fold_vcol, false); draw_col_fill(wlv, schar_from_ascii(' '), stcp->width - width, cur_attr); } static void handle_breakindent(win_T *wp, winlinevars_T *wlv) { // draw 'breakindent': indent wrapped text accordingly // if wlv->need_showbreak is set, breakindent also applies if (wp->w_p_bri && (wlv->row > wlv->startrow + wlv->filler_lines || wlv->need_showbreak)) { int attr = 0; if (wlv->diff_hlf != (hlf_T)0) { attr = win_hl_attr(wp, (int)wlv->diff_hlf); } int num = get_breakindent_win(wp, ml_get_buf(wp->w_buffer, wlv->lnum)); if (wlv->row == wlv->startrow) { num -= win_col_off2(wp); if (wlv->n_extra < 0) { num = 0; } } colnr_T vcol_before = wlv->vcol; for (int i = 0; i < num; i++) { linebuf_char[wlv->off] = schar_from_ascii(' '); advance_color_col(wlv, wlv->vcol); int myattr = attr; if (wlv->color_cols && wlv->vcol == *wlv->color_cols) { myattr = hl_combine_attr(win_hl_attr(wp, HLF_MC), myattr); } linebuf_attr[wlv->off] = myattr; linebuf_vcol[wlv->off] = wlv->vcol++; // These are vcols, sorry I don't make the rules wlv->off++; } // Correct start of highlighted area for 'breakindent', if (wlv->fromcol >= vcol_before && wlv->fromcol < wlv->vcol) { wlv->fromcol = wlv->vcol; } // Correct end of highlighted area for 'breakindent', // required wen 'linebreak' is also set. if (wlv->tocol == vcol_before) { wlv->tocol = wlv->vcol; } } if (wp->w_skipcol > 0 && wlv->startrow == 0 && wp->w_p_wrap && wp->w_briopt_sbr) { wlv->need_showbreak = false; } } static void handle_showbreak_and_filler(win_T *wp, winlinevars_T *wlv) { int remaining = wp->w_grid.cols - wlv->off; 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. draw_col_fill(wlv, schar_from_ascii(' '), remaining, 0); } else if (wlv->filler_todo > 0) { // Draw "deleted" diff line(s) schar_T c = wp->w_p_fcs_chars.diff; draw_col_fill(wlv, c, remaining, 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. // Combine 'showbreak' with 'cursorline', prioritizing 'showbreak'. int attr = hl_combine_attr(wlv->cul_attr, win_hl_attr(wp, HLF_AT)); colnr_T vcol_before = wlv->vcol; draw_col_buf(wp, wlv, sbr, strlen(sbr), attr, NULL, true); wlv->vcol_sbr = wlv->vcol; // Correct start of highlighted area for 'showbreak'. if (wlv->fromcol >= vcol_before && wlv->fromcol < wlv->vcol) { wlv->fromcol = wlv->vcol; } // Correct end of highlighted area for 'showbreak', // required when 'linebreak' is also set. if (wlv->tocol == vcol_before) { wlv->tocol = wlv->vcol; } } if (wp->w_skipcol == 0 || wlv->startrow > 0 || !wp->w_p_wrap || !wp->w_briopt_sbr) { wlv->need_showbreak = false; } } 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; } int const count = (int)kv_size(decor_state.ranges_i); int const cur_end = decor_state.current_end; int const fut_beg = decor_state.future_begin; int *const indices = decor_state.ranges_i.items; DecorRangeSlot *const slots = decor_state.slots.items; int const beg_pos[] = { 0, fut_beg }; int const end_pos[] = { cur_end, count }; for (int pos_i = 0; pos_i < 2; pos_i++) { for (int i = beg_pos[pos_i]; i < end_pos[pos_i]; i++) { DecorRange *item = &slots[indices[i]].range; if (item->start_row != decor_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, bool selected) { 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; int const end = state->current_end; int *const indices = state->ranges_i.items; DecorRangeSlot *const slots = state->slots.items; for (int i = 0; i < end; i++) { DecorRange *item = &slots[indices[i]].range; if (item->draw_col == -3) { // No more inline virtual text before this non-inline virtual text item, // so its position can be decided now. decor_init_draw_col(wlv->off, selected, item); } 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->sc_extra = NUL; wlv->sc_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; } } } /// Start a screen line at column zero. static void win_line_start(win_T *wp, winlinevars_T *wlv) { wlv->col = 0; wlv->off = 0; wlv->need_lbr = false; for (int i = 0; i < wp->w_grid.cols; i++) { linebuf_char[i] = schar_from_ascii(' '); linebuf_attr[i] = 0; linebuf_vcol[i] = -1; } } static void fix_for_boguscols(winlinevars_T *wlv) { wlv->n_extra += wlv->vcol_off_co; wlv->vcol -= wlv->vcol_off_co; wlv->vcol_off_co = 0; wlv->col -= wlv->boguscols; wlv->old_boguscols = wlv->boguscols; wlv->boguscols = 0; } static int get_rightmost_vcol(win_T *wp, const int *color_cols) { int ret = 0; if (wp->w_p_cuc) { ret = wp->w_virtcol; } if (color_cols) { // determine rightmost colorcolumn to possibly draw for (int i = 0; color_cols[i] >= 0; i++) { ret = MAX(ret, color_cols[i]); } } return ret; } /// 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 col_rows set to the height of the line when only updating the columns, /// otherwise set to 0 /// @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, int col_rows, spellvars_T *spv, foldinfo_T foldinfo) { colnr_T vcol_prev = -1; // "wlv.vcol" of previous character ScreenGrid *grid = &wp->w_grid; // grid specific to the window const bool in_curline = wp == curwin && lnum == curwin->w_cursor.lnum; const bool has_fold = foldinfo.fi_level != 0 && foldinfo.fi_lines > 0; const bool has_foldtext = has_fold && *wp->w_p_fdt != NUL; const bool is_wrapped = wp->w_p_wrap && !has_fold; // Never wrap folded lines 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; int char_attr_pri = 0; // attributes with high priority int char_attr_base = 0; // attributes with low 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' or ComplMatchIns 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 eol_hl_off = 0; // 1 if highlighted char after EOL #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 bool extra_check = false; // has extra highlighting 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 = 0; // 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 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; bool did_wcol = false; #define vcol_hlc(wlv) ((wlv).vcol - (wlv).vcol_off_co) assert(startrow < endrow); // variables passed between functions winlinevars_T wlv = { .lnum = lnum, .foldinfo = foldinfo, .startrow = startrow, .row = startrow, .fromcol = -10, .tocol = MAXCOL, .vcol_sbr = -1, .old_boguscols = 0, }; buf_T *buf = wp->w_buffer; const bool end_fill = (lnum == buf->b_ml.ml_line_count + 1); if (col_rows == 0) { // 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_foldtext && !end_fill) { // Prepare for syntax highlighting in this line. When there is an // error, stop syntax highlighting. int 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; } } } if (!end_fill) { decor_providers_invoke_line(wp, lnum - 1); } has_decor = decor_redraw_line(wp, lnum - 1, &decor_state); if (has_decor) { extra_check = true; } // Check for columns to display for 'colorcolumn'. wlv.color_cols = wp->w_buffer->terminal ? NULL : wp->w_p_cc_cols; advance_color_col(&wlv, vcol_hlc(wlv)); // 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_T 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 && in_curline && 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_foldtext && 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_T pos = { .lnum = lnum, .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 - 1, lnum, &virt_lines, true); 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 != kOptCuloptFlagNumber && 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 = (is_wrapped && (wp->w_p_culopt_flags & kOptCuloptFlagScreenline)); if (!cul_screenline) { apply_cursorline_highlight(wp, &wlv); } else { margin_columns_win(wp, &left_curline_col, &right_curline_col); } area_highlighting = true; } int sign_line_attr = 0; // TODO(bfredl, vigoux): line_attr should not take priority over decoration! decor_redraw_signs(wp, buf, wlv.lnum - 1, wlv.sattrs, &sign_line_attr, &wlv.sign_cul_attr, &wlv.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) - (wp == cmdwin_win); statuscol.sign_cul_id = use_cursor_line_highlight(wp, lnum) ? wlv.sign_cul_attr : 0; } else if (wlv.sign_cul_attr > 0) { wlv.sign_cul_attr = use_cursor_line_highlight(wp, lnum) ? syn_id2attr(wlv.sign_cul_attr) : 0; } if (wlv.sign_num_attr > 0) { wlv.sign_num_attr = syn_id2attr(wlv.sign_num_attr); } if (sign_line_attr > 0) { wlv.line_attr = syn_id2attr(sign_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; } int line_attr_save = wlv.line_attr; int line_attr_lowprio_save = wlv.line_attr_lowprio; if (spv->spv_has_spell && col_rows == 0) { // 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) { char *line = ml_get_buf(wp->w_buffer, lnum + 1); spell_cat_line(nextline + SPWORDLEN, line, SPWORDLEN); } assert(!end_fill); char *line = ml_get_buf(wp->w_buffer, lnum); // If current line is empty, check first word in next line for capital. char *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 { const colnr_T line_len = ml_get_buf_len(wp->w_buffer, lnum); if (line_len < SPWORDLEN) { // Short line, use it completely and append the start of the // next line. nextlinecol = 0; memmove(nextline, line, (size_t)line_len); STRMOVE(nextline + line_len, nextline + SPWORDLEN); nextline_idx = line_len + 1; } else { // Long line, use only the last SPWORDLEN bytes. nextlinecol = line_len - SPWORDLEN; memmove(nextline, line + nextlinecol, SPWORDLEN); nextline_idx = SPWORDLEN + 1; } } } // current line char *line = end_fill ? "" : ml_get_buf(wp->w_buffer, lnum); // current position in "line" char *ptr = line; colnr_T trailcol = MAXCOL; // start of trailing spaces colnr_T leadcol = 0; // start of leading spaces bool lcs_eol_todo = true; // need to keep track of this even if lcs_eol is NUL const schar_T lcs_eol = wp->w_p_lcs_chars.eol; // 'eol' value schar_T lcs_prec_todo = wp->w_p_lcs_chars.prec; // 'prec' until it's been used, then NUL if (wp->w_p_list && !has_foldtext && !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; } // find start of trailing whitespace if (wp->w_p_lcs_chars.trail) { trailcol = ml_get_buf_len(wp->w_buffer, lnum); while (trailcol > 0 && ascii_iswhite(ptr[trailcol - 1])) { trailcol--; } trailcol += (colnr_T)(ptr - line); } // 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); } } } // 'nowrap' or 'wrap' and a single line that doesn't fit: Advance to the // first character to be displayed. const int start_col = wp->w_p_wrap ? (startrow == 0 ? wp->w_skipcol : 0) : wp->w_leftcol; if (start_col > 0 && col_rows == 0) { char *prev_ptr = ptr; CharSize cs = { 0 }; CharsizeArg csarg; CSType cstype = init_charsize_arg(&csarg, wp, lnum, line); csarg.max_head_vcol = start_col; int vcol = wlv.vcol; StrCharInfo ci = utf_ptr2StrCharInfo(ptr); while (vcol < start_col && *ci.ptr != NUL) { cs = win_charsize(cstype, vcol, ci.ptr, ci.chr.value, &csarg); vcol += cs.width; prev_ptr = ci.ptr; ci = utfc_next(ci); if (wp->w_p_list) { in_multispace = *prev_ptr == ' ' && (*ci.ptr == ' ' || (prev_ptr > line && prev_ptr[-1] == ' ')); if (!in_multispace) { multispace_pos = 0; } else if (ci.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 (ci.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 = vcol; ptr = ci.ptr; int charsize = cs.width; int head = cs.head; // 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 < start_col && (wp->w_p_cuc || wlv.color_cols || virtual_active(wp) || (VIsual_active && wp->w_buffer == curwin->w_buffer))) { wlv.vcol = start_col; } // 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 > start_col) { wlv.vcol -= charsize; ptr = prev_ptr; } if (start_col > wlv.vcol) { wlv.skip_cells = start_col - 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) { colnr_T linecol = (colnr_T)(ptr - line); hlf_T spell_hlf = HLF_COUNT; pos_T pos = wp->w_cursor; wp->w_cursor.lnum = lnum; wp->w_cursor.col = linecol; size_t len = spell_move_to(wp, FORWARD, SMT_ALL, 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 || wp->w_cursor.col > linecol) { // 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 (col_rows == 0 && !has_foldtext && !end_fill) { const int v = (int)(ptr - line); area_highlighting |= prepare_search_hl_line(wp, lnum, v, &line, &screen_search_hl, &search_attr, &search_attr_from_match); ptr = line + v; // "line" may have been updated } if ((State & MODE_INSERT) && in_curline && ins_compl_win_active(wp)) { area_highlighting = true; } win_line_start(wp, &wlv); bool draw_cols = true; int leftcols_width = 0; // 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; } const bool may_have_inline_virt = !has_foldtext && buf_meta_total(wp->w_buffer, kMTMetaInline) > 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 (draw_cols) { if (cul_screenline) { wlv.cul_attr = 0; wlv.line_attr = line_attr_save; wlv.line_attr_lowprio = line_attr_lowprio_save; } assert(wlv.off == 0); if (wp == cmdwin_win) { // Draw the cmdline character. draw_col_fill(&wlv, schar_from_ascii(cmdwin_type), 1, win_hl_attr(wp, HLF_AT)); } 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 columns } else if (statuscol.draw) { // Draw 'statuscolumn' if it is set. const int v = (int)(ptr - line); draw_statuscol(wp, &wlv, lnum, wlv.row - startrow - wlv.filler_lines, col_rows, &statuscol); if (wp->w_redr_statuscol) { break; } if (!end_fill) { // Get the line again as evaluating 'statuscolumn' may free it. line = ml_get_buf(wp->w_buffer, lnum); ptr = line + v; } } else { // draw builtin info columns: fold, sign, number draw_foldcolumn(wp, &wlv); // wp->w_scwidth is zero if signcol=number is used for (int sign_idx = 0; sign_idx < wp->w_scwidth; sign_idx++) { draw_sign(false, wp, &wlv, sign_idx); } draw_lnum_col(wp, &wlv); } win_col_offset = wlv.off; // When only updating the columns and that's done, stop here. if (col_rows > 0) { wlv_put_linebuf(wp, &wlv, MIN(wlv.off, grid->cols), false, bg_attr, 0); // Need to update more screen lines if: // - 'statuscolumn' needs to be drawn, or // - LineNrAbove or LineNrBelow is used, or // - still drawing filler lines. if ((wlv.row + 1 - wlv.startrow < col_rows && (statuscol.draw || win_hl_attr(wp, HLF_LNA) != win_hl_attr(wp, HLF_N) || win_hl_attr(wp, HLF_LNB) != win_hl_attr(wp, HLF_N))) || wlv.filler_todo > 0) { wlv.row++; if (wlv.row == endrow) { break; } wlv.filler_todo--; if (wlv.filler_todo == 0 && (wp->w_botfill || end_fill)) { break; } // win_line_start(wp, &wlv); wlv.col = 0; wlv.off = 0; continue; } else { break; } } // Check if 'breakindent' applies and show it. if (!wp->w_briopt_sbr) { handle_breakindent(wp, &wlv); } handle_showbreak_and_filler(wp, &wlv); if (wp->w_briopt_sbr) { handle_breakindent(wp, &wlv); } wlv.col = wlv.off; draw_cols = false; if (wlv.filler_todo <= 0) { leftcols_width = wlv.off; } 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); } if (wlv.col >= grid->cols) { wlv.col = wlv.off = grid->cols; goto end_check; } } if (cul_screenline && wlv.filler_todo <= 0 && 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 && in_curline && wlv.vcol >= wp->w_virtcol) { draw_virt_text(wp, buf, win_col_offset, &wlv.col, wlv.row); // don't clear anything after wlv.col wlv_put_linebuf(wp, &wlv, wlv.col, false, bg_attr, 0); // 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 = 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); decor_attr = 0; } int extmark_attr = 0; if (wlv.filler_todo <= 0 && (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)); // When there may be inline virtual text, position of non-inline virtual text // can only be decided after drawing inline virtual text with lower priority. if (decor_need_recheck) { if (!may_have_inline_virt) { decor_recheck_draw_col(wlv.off, selected, &decor_state); } decor_need_recheck = false; } extmark_attr = decor_redraw_col(wp, (colnr_T)(ptr - line), may_have_inline_virt ? -3 : wlv.off, selected, &decor_state); if (may_have_inline_virt) { handle_inline_virtual_text(wp, &wlv, ptr - line, selected); 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_foldtext && 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. const int v = (int)(ptr - line); search_attr = update_search_hl(wp, lnum, v, &line, &screen_search_hl, &has_match_conc, &match_conc, lcs_eol_todo, &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; } // Check if ComplMatchIns highlight is needed. if ((State & MODE_INSERT) && in_curline && ins_compl_win_active(wp)) { int ins_match_attr = ins_compl_col_range_attr((int)(ptr - line)); if (ins_match_attr > 0) { search_attr = hl_combine_attr(search_attr, ins_match_attr); } } } 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. if (area_attr != 0) { char_attr_pri = hl_combine_attr(wlv.line_attr, area_attr); if (!highlight_match) { // let search highlight show in Visual area if possible char_attr_pri = hl_combine_attr(search_attr, char_attr_pri); } } else if (search_attr != 0) { char_attr_pri = 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). char_attr_pri = wlv.line_attr; } else { char_attr_pri = 0; } char_attr_base = hl_combine_attr(folded_attr, decor_attr); wlv.char_attr = hl_combine_attr(char_attr_base, char_attr_pri); } if (draw_folded && has_foldtext && wlv.n_extra == 0 && wlv.col == win_col_offset) { const int v = (int)(ptr - line); 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.sc_extra = NUL; wlv.sc_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 && (has_foldtext || *ptr == NUL)) { // Fill rest of line with 'fold'. wlv.sc_extra = wp->w_p_fcs_chars.fold; wlv.sc_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, sc_extra is used. // If sc_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.sc_extra != NUL || (wlv.n_extra == 1 && wlv.sc_final != NUL)) { mb_schar = (wlv.n_extra == 1 && wlv.sc_final != NUL) ? wlv.sc_final : wlv.sc_extra; mb_c = schar_get_first_codepoint(mb_schar); 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 && schar_cells(mb_schar) == 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 (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 (wlv.filler_todo > 0) { // Wait with reading text until filler lines are done. Still need to // initialize these. mb_c = ' '; mb_schar = schar_from_ascii(' '); } else if (has_foldtext || (has_fold && wlv.col >= grid->cols)) { // skip writing the buffer line itself mb_schar = NUL; } else { const 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.sc_extra = NUL; wlv.sc_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 && schar_cells(mb_schar) == 2) { mb_schar = schar_from_ascii('>'); mb_c = '>'; mb_l = 1; 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.sc_extra = schar_from_ascii(MB_FILLER_CHAR); wlv.sc_final = NUL; mb_schar = schar_from_ascii(' '); mb_c = ' '; mb_l = 1; 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) { const bool no_plain_buffer = (wp->w_s->b_p_spo_flags & kOptSpoFlagNoplainbuffer) != 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). const int v = (int)(ptr - line); const ptrdiff_t prev_v = prev_ptr - line; if (has_syntax && v > 0) { // Get the syntax attribute for the character. If there // is an error, disable syntax highlighting. int save_did_emsg = did_emsg; did_emsg = false; decor_attr = get_syntax_attr(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; prev_ptr = line + prev_v; // no concealing past the end of the line, it interferes // with line highlighting. syntax_flags = (mb_schar == 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); } char_attr_base = hl_combine_attr(folded_attr, decor_attr); wlv.char_attr = hl_combine_attr(char_attr_base, char_attr_pri); // 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. int v1 = (int)(ptr - line); if (spv->spv_has_spell && v1 >= word_end && v1 > 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_schar != 0 && (*skipwhite(prev_ptr) != NUL) && can_spell) { char *p; hlf_T spell_hlf = HLF_COUNT; v1 -= 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 = (char *)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 = v1 + 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) { char_attr_base = hl_combine_attr(char_attr_base, spell_attr); wlv.char_attr = hl_combine_attr(char_attr_base, char_attr_pri); } 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_schar != 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); CharsizeArg csarg; // lnum == 0, do not want virtual text to be counted here CSType cstype = init_charsize_arg(&csarg, wp, 0, line); wlv.n_extra = win_charsize(cstype, wlv.vcol, p, utf_ptr2CharInfo(p).value, &csarg).width - 1; 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.sc_extra = schar_from_ascii(mb_off > 0 ? MB_FILLER_CHAR : ' '); wlv.sc_final = NUL; if (mb_c < 128 && ascii_iswhite(mb_c)) { if (mb_c == TAB) { // See "Tab alignment" below. fix_for_boguscols(&wlv); } 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_schar = wp->w_p_lcs_chars.multispace[multispace_pos++]; if (wp->w_p_lcs_chars.multispace[multispace_pos] == NUL) { multispace_pos = 0; } } else { mb_schar = (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_c = schar_get_first_codepoint(mb_schar); } 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_schar = 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_schar = wp->w_p_lcs_chars.trail; } else if (ptr < line + leadcol && wp->w_p_lcs_chars.lead) { mb_schar = wp->w_p_lcs_chars.lead; } else if (leadcol != 0 && wp->w_p_lcs_chars.space) { mb_schar = 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_c = schar_get_first_codepoint(mb_schar); } } // 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 { int saved_nextra = wlv.n_extra; if (wlv.vcol_off_co > 0) { // there are characters to conceal tab_len += wlv.vcol_off_co; } // boguscols before fix_for_boguscols() from above. if (wp->w_p_lcs_chars.tab1 && wlv.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. size_t tab2_len = schar_len(wp->w_p_lcs_chars.tab2); size_t len = (size_t)tab_len * tab2_len; if (wp->w_p_lcs_chars.tab3) { len += schar_len(wp->w_p_lcs_chars.tab3) - tab2_len; } if (wlv.n_extra > 0) { len += (size_t)(wlv.n_extra - tab_len); } mb_schar = wp->w_p_lcs_chars.tab1; mb_c = schar_get_first_codepoint(mb_schar); char *p = get_extra_buf(len + 1); memset(p, ' ', len); p[len] = NUL; wlv.p_extra = p; for (int i = 0; i < tab_len; i++) { if (*p == NUL) { tab_len = i; break; } schar_T 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; } size_t slen = schar_get_adv(&p, lcs); wlv.n_extra += (int)slen - (saved_nextra > 0 ? 1 : 0); } // n_extra will be increased by fix_for_boguscols() // below, so need to adjust for that here if (wlv.vcol_off_co > 0) { wlv.n_extra -= wlv.vcol_off_co; } } } { int vc_saved = wlv.vcol_off_co; // Tab alignment should be identical regardless of // 'conceallevel' value. So tab compensates of all // previous concealed characters, and thus resets // vcol_off_co 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(&wlv); // Make sure, the highlighting for the tab char will be // correctly set further below (effectively reverts the // fix_for_boguscols() call). 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_schar = (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.sc_extra = NUL; // using p_extra from above } else { wlv.sc_extra = wp->w_p_lcs_chars.tab2; } wlv.sc_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.sc_final = NUL; wlv.sc_extra = schar_from_ascii(' '); mb_schar = schar_from_ascii(' '); } mb_c = schar_get_first_codepoint(mb_schar); } else if (mb_schar == 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_todo && lcs_eol != NUL) { // 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(wp) && wlv.tocol != MAXCOL && wlv.vcol < wlv.tocol)) { wlv.p_extra = ""; } wlv.n_extra = 0; } if (wp->w_p_list && wp->w_p_lcs_chars.eol > 0) { mb_schar = wp->w_p_lcs_chars.eol; } else { mb_schar = schar_from_ascii(' '); } lcs_eol_todo = false; ptr--; // put it back at the NUL wlv.extra_attr = win_hl_attr(wp, HLF_AT); wlv.n_attr = 1; mb_c = schar_get_first_codepoint(mb_schar); } else if (mb_schar != 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 & kOptDyFlagUhex) && wp->w_p_rl) { rl_mirror_ascii(wlv.p_extra, NULL); // reverse "<12>" } wlv.sc_extra = NUL; wlv.sc_final = NUL; if (wp->w_p_lbr) { mb_c = (uint8_t)(*wlv.p_extra); char *p = get_extra_buf((size_t)wlv.n_extra + 1); memset(p, ' ', (size_t)wlv.n_extra); memcpy(p, wlv.p_extra + 1, 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(wp) && 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; 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) { if (schar_cells(mb_schar) > 1) { // When the first char to be concealed is double-width, // need to advance one more virtual column. wlv.n_extra++; } // First time at this concealed item: display one // character. if (has_match_conc && match_conc) { mb_schar = schar_from_char(match_conc); } else if (decor_conceal && decor_state.conceal_char) { mb_schar = decor_state.conceal_char; if (decor_state.conceal_attr) { wlv.char_attr = decor_state.conceal_attr; } } else if (syn_get_sub_char() != NUL) { mb_schar = schar_from_char(syn_get_sub_char()); } else if (wp->w_p_lcs_chars.conceal != NUL) { mb_schar = wp->w_p_lcs_chars.conceal; } else { mb_schar = schar_from_ascii(' '); } mb_c = schar_get_first_codepoint(mb_schar); prev_syntax_id = syntax_seqnr; if (wlv.n_extra > 0) { wlv.vcol_off_co += wlv.n_extra; } wlv.vcol += wlv.n_extra; if (is_wrapped && 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; } } 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. // With 'virtualedit' we may never reach cursor position, but we still // need to correct the cursor column, so do that at end of line. if (!did_wcol && wlv.filler_todo <= 0 && in_curline && conceal_cursor_line(wp) && (wlv.vcol + wlv.skip_cells >= wp->w_virtcol || mb_schar == NUL)) { wp->w_wcol = wlv.col - wlv.boguscols; if (wlv.vcol + wlv.skip_cells < wp->w_virtcol) { // Cursor beyond end of the line with 'virtualedit'. wp->w_wcol += wp->w_virtcol - wlv.vcol - wlv.skip_cells; } 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 && !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 && mb_schar != NUL) { mb_schar = wp->w_p_lcs_chars.prec; lcs_prec_todo = NUL; if (schar_cells(mb_schar) > 1) { // Double-width character being overwritten by the "precedes" // character, need to fill up half the character. wlv.sc_extra = schar_from_ascii(MB_FILLER_CHAR); wlv.sc_final = NUL; wlv.n_extra = 1; wlv.n_attr = 2; wlv.extra_attr = win_hl_attr(wp, HLF_AT); } mb_c = schar_get_first_codepoint(mb_schar); 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_schar == NUL && eol_hl_off == 0) { // flag to indicate whether prevcol equals startcol of search_hl or // one of the matches const 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 (lcs_eol_todo && ((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_foldtext) { // 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); } const int eol_attr = wlv.cul_attr ? hl_combine_attr(wlv.cul_attr, wlv.char_attr) : wlv.char_attr; linebuf_attr[wlv.off] = eol_attr; linebuf_vcol[wlv.off] = wlv.vcol; wlv.col++; wlv.off++; wlv.vcol++; eol_hl_off = 1; } } // At end of the text line. if (mb_schar == NUL) { // Highlight 'cursorcolumn' & 'colorcolumn' past end of the line. // check if line ends before left margin wlv.vcol = MAX(wlv.vcol, start_col + 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; advance_color_col(&wlv, vcol_hlc(wlv)); // Make sure alignment is the same regardless // if listchars=eol:X is used or not. const int eol_skip = (lcs_eol_todo && eol_hl_off == 0 ? 1 : 0); if (has_decor) { decor_redraw_eol(wp, &decor_state, &wlv.line_attr, wlv.col + eol_skip); } for (int i = wlv.col; i < grid->cols; i++) { linebuf_vcol[wlv.off + (i - wlv.col)] = wlv.vcol + (i - wlv.col); } if (((wp->w_p_cuc && wp->w_virtcol >= vcol_hlc(wlv) - eol_hl_off && wp->w_virtcol < grid->cols * (ptrdiff_t)(wlv.row - startrow + 1) + start_col && lnum != wp->w_cursor.lnum) || wlv.color_cols || wlv.line_attr_lowprio || wlv.line_attr || wlv.diff_hlf != 0 || wp->w_buffer->terminal)) { int rightmost_vcol = get_rightmost_vcol(wp, wlv.color_cols); const int cuc_attr = win_hl_attr(wp, HLF_CUC); const int mc_attr = win_hl_attr(wp, HLF_MC); if (wlv.diff_hlf == HLF_TXD) { wlv.diff_hlf = HLF_CHD; } const int diff_attr = wlv.diff_hlf != 0 ? win_hl_attr(wp, (int)wlv.diff_hlf) : 0; const int base_attr = hl_combine_attr(wlv.line_attr_lowprio, diff_attr); if (base_attr || wlv.line_attr || wp->w_buffer->terminal) { rightmost_vcol = INT_MAX; } while (wlv.col < grid->cols) { linebuf_char[wlv.off] = schar_from_ascii(' '); advance_color_col(&wlv, vcol_hlc(wlv)); int col_attr = base_attr; if (wp->w_p_cuc && vcol_hlc(wlv) == wp->w_virtcol && lnum != wp->w_cursor.lnum) { col_attr = hl_combine_attr(col_attr, cuc_attr); } else if (wlv.color_cols && vcol_hlc(wlv) == *wlv.color_cols) { col_attr = hl_combine_attr(col_attr, mc_attr); } if (wp->w_buffer->terminal && wlv.vcol < TERM_ATTRS_MAX) { col_attr = hl_combine_attr(col_attr, term_attrs[wlv.vcol]); } col_attr = hl_combine_attr(col_attr, wlv.line_attr); linebuf_attr[wlv.off] = col_attr; // linebuf_vcol[] already filled by the for loop above wlv.off++; wlv.col++; wlv.vcol++; if (vcol_hlc(wlv) > rightmost_vcol) { break; } } } 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); // Set increasing virtual columns in grid->vcols[] to set correct curswant // (or "coladd" for 'virtualedit') when clicking after end of line. wlv_put_linebuf(wp, &wlv, wlv.col, true, bg_attr, SLF_INC_VCOL); wlv.row++; // Update w_cline_height and w_cline_folded if the cursor line was // updated (saves a call to plines_win() later). if (in_curline) { 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. // Don't show this with 'wrap' as the line can't be scrolled horizontally. if (wp->w_p_lcs_chars.ext != NUL && wp->w_p_list && !wp->w_p_wrap && wlv.filler_todo <= 0 && wlv.col == grid->cols - 1 && !has_foldtext) { if (has_decor && *ptr == NUL && lcs_eol == 0 && lcs_eol_todo) { // Tricky: there might be a virtual text just _after_ the last char decor_redraw_col(wp, (colnr_T)(ptr - line), -1, false, &decor_state); } if (*ptr != NUL || (lcs_eol > 0 && lcs_eol_todo) || (wlv.n_extra > 0 && (wlv.sc_extra != NUL || *wlv.p_extra != NUL)) || (may_have_inline_virt && has_more_inline_virt(&wlv, ptr - line))) { mb_schar = wp->w_p_lcs_chars.ext; wlv.char_attr = win_hl_attr(wp, HLF_AT); mb_c = schar_get_first_codepoint(mb_schar); } } advance_color_col(&wlv, vcol_hlc(wlv)); // 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' vcol_save_attr = -1; if (!lnum_in_visual_area && search_attr == 0 && area_attr == 0 && wlv.filler_todo <= 0) { if (wp->w_p_cuc && vcol_hlc(wlv) == 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 (wlv.color_cols && vcol_hlc(wlv) == *wlv.color_cols) { vcol_save_attr = wlv.char_attr; wlv.char_attr = hl_combine_attr(win_hl_attr(wp, HLF_MC), wlv.char_attr); } } if (wlv.filler_todo <= 0) { // Apply lowest-priority line attr now, so everything can override it. wlv.char_attr = hl_combine_attr(wlv.line_attr_lowprio, wlv.char_attr); } if (wlv.filler_todo <= 0) { vcol_prev = wlv.vcol; } // Store character to be displayed. // Skip characters that are left of the screen for 'nowrap'. if (wlv.filler_todo > 0) { // TODO(bfredl): the main render loop should get called also with the virtual // lines chunks, so we get line wrapping and other Nice Things. } else if (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; } linebuf_vcol[wlv.off] = wlv.vcol; if (schar_cells(mb_schar) > 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]; linebuf_vcol[wlv.off] = ++wlv.vcol; // 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) { bool concealed_wide = schar_cells(mb_schar) > 1; wlv.skip_cells--; wlv.vcol_off_co++; if (concealed_wide) { // When a double-width char is concealed, // need to advance one more virtual column. wlv.vcol++; wlv.vcol_off_co++; } if (wlv.n_extra > 0) { wlv.vcol_off_co += wlv.n_extra; } if (is_wrapped) { // 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 (concealed_wide) { // 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.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.filler_todo <= 0) { wlv.vcol++; } if (vcol_save_attr >= 0) { wlv.char_attr = vcol_save_attr; } // restore attributes after "precedes" in 'listchars' if (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.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 (is_wrapped && wlv.n_extra == 0) { decor_redraw_col(wp, (colnr_T)(ptr - line), -3, false, &decor_state); // Check position/hiding of virtual text again on next screen line. decor_need_recheck = true; } else if (!is_wrapped) { // Without wrapping, we might need to display right_align and win_col // virt_text for the entire text line. decor_recheck_draw_col(-1, true, &decor_state); decor_redraw_col(wp, MAXCOL, -1, true, &decor_state); } } end_check: // 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_foldtext || virt_line_offset >= 0) && (wlv.col <= leftcols_width || *ptr != NUL || wlv.filler_todo > 0 || (wp->w_p_list && wp->w_p_lcs_chars.eol != NUL && lcs_eol_todo) || (wlv.n_extra != 0 && (wlv.sc_extra != NUL || *wlv.p_extra != NUL)) || (may_have_inline_virt && has_more_inline_virt(&wlv, ptr - line)))) { const bool wrap = is_wrapped // Wrapping enabled (not a folded line). && wlv.filler_todo <= 0 // Not drawing diff filler lines. && lcs_eol_todo // 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; for (int i = draw_col; i < grid->cols; i++) { linebuf_vcol[wlv.off + (i - draw_col)] = wlv.vcol - 1; } // Apply 'cursorline' highlight. if (wlv.boguscols != 0 && (wlv.line_attr_lowprio != 0 || wlv.line_attr != 0)) { int attr = hl_combine_attr(wlv.line_attr_lowprio, wlv.line_attr); while (draw_col < grid->cols) { linebuf_char[wlv.off] = schar_from_char(' '); linebuf_attr[wlv.off] = attr; // linebuf_vcol[] already filled by the for loop above wlv.off++; draw_col++; } } 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); } wlv_put_linebuf(wp, &wlv, draw_col, true, bg_attr, wrap ? SLF_WRAP : 0); 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_co = 0; wlv.row++; // When not wrapping and finished diff lines, break here. if (!is_wrapped && wlv.filler_todo <= 0) { break; } // When the window is too narrow draw all "@" lines. if (wlv.col <= leftcols_width) { win_draw_end(wp, schar_from_ascii('@'), 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); draw_cols = true; lcs_prec_todo = wp->w_p_lcs_chars.prec; if (wlv.filler_todo <= 0) { wlv.need_showbreak = true; } if (statuscol.draw && 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' } 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; } /// Call grid_put_linebuf() using values from "wlv". /// Also takes care of putting "<<<" on the first line for 'smoothscroll' /// when 'showbreak' is not set. /// /// @param clear_end clear until the end of the screen line. /// @param flags for grid_put_linebuf(), but shouldn't contain SLF_RIGHTLEFT. static void wlv_put_linebuf(win_T *wp, const winlinevars_T *wlv, int endcol, bool clear_end, int bg_attr, int flags) { ScreenGrid *grid = &wp->w_grid; int startcol = 0; int clear_width = clear_end ? grid->cols : endcol; assert(!(flags & SLF_RIGHTLEFT)); if (wp->w_p_rl) { linebuf_mirror(&startcol, &endcol, &clear_width, grid->cols); flags |= SLF_RIGHTLEFT; } // Take care of putting "<<<" on the first line for 'smoothscroll'. if (wlv->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++; } } int row = wlv->row; int coloff = 0; grid_adjust(&grid, &row, &coloff); grid_put_linebuf(grid, row, coloff, startcol, endcol, clear_width, bg_attr, wlv->vcol - 1, flags); }