diff options
Diffstat (limited to 'src/nvim/plines.c')
| -rw-r--r-- | src/nvim/plines.c | 585 |
1 files changed, 268 insertions, 317 deletions
diff --git a/src/nvim/plines.c b/src/nvim/plines.c index 6e9f92c193..eca07f0144 100644 --- a/src/nvim/plines.c +++ b/src/nvim/plines.c @@ -6,16 +6,20 @@ #include <string.h> #include "nvim/ascii_defs.h" +#include "nvim/buffer.h" +#include "nvim/buffer_defs.h" #include "nvim/charset.h" #include "nvim/decoration.h" +#include "nvim/decoration_defs.h" #include "nvim/diff.h" #include "nvim/fold.h" -#include "nvim/func_attr.h" #include "nvim/globals.h" #include "nvim/indent.h" #include "nvim/macros_defs.h" -#include "nvim/mark.h" +#include "nvim/mark_defs.h" +#include "nvim/marktree.h" #include "nvim/mbyte.h" +#include "nvim/mbyte_defs.h" #include "nvim/memline.h" #include "nvim/move.h" #include "nvim/option.h" @@ -23,6 +27,7 @@ #include "nvim/plines.h" #include "nvim/pos_defs.h" #include "nvim/state.h" +#include "nvim/state_defs.h" #include "nvim/types_defs.h" #ifdef INCLUDE_GENERATED_DECLARATIONS @@ -31,14 +36,14 @@ /// Functions calculating horizontal size of text, when displayed in a window. -/// Return the number of characters 'c' will take on the screen, taking -/// into account the size of a tab. +/// Return the number of cells the first char in "p" will take on the screen, +/// taking into account the size of a tab. /// Also see getvcol() /// /// @param p /// @param col /// -/// @return Number of characters. +/// @return Number of cells. int win_chartabsize(win_T *wp, char *p, colnr_T col) { buf_T *buf = wp->w_buffer; @@ -48,48 +53,21 @@ int win_chartabsize(win_T *wp, char *p, colnr_T col) return ptr2cells(p); } -/// Return the number of characters the string 's' will take on the screen, -/// taking into account the size of a tab. -/// -/// @param s -/// -/// @return Number of characters the string will take on the screen. -int linetabsize_str(char *s) -{ - return linetabsize_col(0, s); -} - -/// Like linetabsize_str(), but "s" starts at column "startcol". +/// Like linetabsize_str(), but "s" starts at virtual column "startvcol". /// /// @param startcol /// @param s /// -/// @return Number of characters the string will take on the screen. -int linetabsize_col(int startcol, char *s) +/// @return Number of cells the string will take on the screen. +int linetabsize_col(int startvcol, char *s) { - chartabsize_T cts; - init_chartabsize_arg(&cts, curwin, 0, startcol, s, s); - while (*cts.cts_ptr != NUL) { - cts.cts_vcol += lbr_chartabsize_adv(&cts); + CharsizeArg csarg; + CSType const cstype = init_charsize_arg(&csarg, curwin, 0, s); + if (cstype == kCharsizeFast) { + return linesize_fast(&csarg, startvcol, MAXCOL); + } else { + return linesize_regular(&csarg, startvcol, MAXCOL); } - clear_chartabsize_arg(&cts); - return cts.cts_vcol; -} - -/// Like linetabsize_str(), but for a given window instead of the current one. -/// -/// @param wp -/// @param line -/// @param len -/// -/// @return Number of characters the string will take on the screen. -int win_linetabsize(win_T *wp, linenr_T lnum, char *line, colnr_T len) -{ - chartabsize_T cts; - init_chartabsize_arg(&cts, wp, lnum, 0, line, line); - win_linetabsize_cts(&cts, len); - clear_chartabsize_arg(&cts); - return cts.cts_vcol; } /// Return the number of cells line "lnum" of window "wp" will take on the @@ -99,144 +77,100 @@ int linetabsize(win_T *wp, linenr_T lnum) return win_linetabsize(wp, lnum, ml_get_buf(wp->w_buffer, lnum), (colnr_T)MAXCOL); } -void win_linetabsize_cts(chartabsize_T *cts, colnr_T len) -{ - for (; *cts->cts_ptr != NUL && (len == MAXCOL || cts->cts_ptr < cts->cts_line + len); - MB_PTR_ADV(cts->cts_ptr)) { - cts->cts_vcol += win_lbr_chartabsize(cts, NULL); - } - // check for inline virtual text after the end of the line - if (len == MAXCOL && cts->cts_has_virt_text && *cts->cts_ptr == NUL) { - (void)win_lbr_chartabsize(cts, NULL); - cts->cts_vcol += cts->cts_cur_text_width_left + cts->cts_cur_text_width_right; - } -} +static const uint32_t inline_filter[4] = {[kMTMetaInline] = kMTFilterSelect }; -/// Prepare the structure passed to chartabsize functions. +/// Prepare the structure passed to charsize functions. /// -/// "line" is the start of the line, "ptr" is the first relevant character. +/// "line" is the start of the line. /// When "lnum" is zero do not use inline virtual text. -void init_chartabsize_arg(chartabsize_T *cts, win_T *wp, linenr_T lnum, colnr_T col, char *line, - char *ptr) +CSType init_charsize_arg(CharsizeArg *csarg, win_T *wp, linenr_T lnum, char *line) { - cts->cts_win = wp; - cts->cts_vcol = col; - cts->cts_line = line; - cts->cts_ptr = ptr; - cts->cts_max_head_vcol = 0; - cts->cts_cur_text_width_left = 0; - cts->cts_cur_text_width_right = 0; - cts->cts_has_virt_text = false; - cts->cts_row = lnum - 1; - - if (cts->cts_row >= 0 && wp->w_buffer->b_virt_text_inline > 0) { - marktree_itr_get(wp->w_buffer->b_marktree, cts->cts_row, 0, cts->cts_iter); - MTKey mark = marktree_itr_current(cts->cts_iter); - if (mark.pos.row == cts->cts_row) { - cts->cts_has_virt_text = true; + csarg->win = wp; + csarg->line = line; + csarg->max_head_vcol = 0; + csarg->cur_text_width_left = 0; + csarg->cur_text_width_right = 0; + csarg->virt_row = -1; + csarg->indent_width = INT_MIN; + csarg->use_tabstop = !wp->w_p_list || wp->w_p_lcs_chars.tab1; + + if (lnum > 0) { + if (marktree_itr_get_filter(wp->w_buffer->b_marktree, lnum - 1, 0, lnum, 0, + inline_filter, csarg->iter)) { + csarg->virt_row = lnum - 1; } } -} - -/// Free any allocated item in "cts". -void clear_chartabsize_arg(chartabsize_T *cts) -{ -} -/// like win_chartabsize(), but also check for line breaks on the screen -/// -/// @param cts -/// -/// @return The number of characters taken up on the screen. -int lbr_chartabsize(chartabsize_T *cts) -{ - if (!curwin->w_p_lbr && *get_showbreak_value(curwin) == NUL - && !curwin->w_p_bri && !cts->cts_has_virt_text) { - if (curwin->w_p_wrap) { - return win_nolbr_chartabsize(cts, NULL); - } - return win_chartabsize(curwin, cts->cts_ptr, cts->cts_vcol); + if (csarg->virt_row >= 0 + || (wp->w_p_wrap && (wp->w_p_lbr || wp->w_p_bri || *get_showbreak_value(wp) != NUL))) { + return kCharsizeRegular; + } else { + return kCharsizeFast; } - return win_lbr_chartabsize(cts, NULL); } -/// Call lbr_chartabsize() and advance the pointer. -/// -/// @param cts -/// -/// @return The number of characters take up on the screen. -int lbr_chartabsize_adv(chartabsize_T *cts) -{ - int retval = lbr_chartabsize(cts); - MB_PTR_ADV(cts->cts_ptr); - return retval; -} - -/// Get the number of characters taken up on the screen indicated by "cts". -/// "cts->cts_cur_text_width_left" and "cts->cts_cur_text_width_right" are set +/// Get the number of cells taken up on the screen for the given arguments. +/// "csarg->cur_text_width_left" and "csarg->cur_text_width_right" are set /// to the extra size for inline virtual text. -/// This function is used very often, keep it fast!!!! /// -/// If "headp" not NULL, set "*headp" to the size of 'showbreak'/'breakindent' -/// included in the return value. -/// When "cts->cts_max_head_vcol" is positive, only count in "*headp" the size -/// of 'showbreak'/'breakindent' before "cts->cts_max_head_vcol". -/// When "cts->cts_max_head_vcol" is negative, only count in "*headp" the size +/// When "csarg->max_head_vcol" is positive, only count in "head" the size +/// of 'showbreak'/'breakindent' before "csarg->max_head_vcol". +/// When "csarg->max_head_vcol" is negative, only count in "head" the size /// of 'showbreak'/'breakindent' before where cursor should be placed. -/// -/// Warning: "*headp" may not be set if it's 0, init to 0 before calling. -int win_lbr_chartabsize(chartabsize_T *cts, int *headp) +CharSize charsize_regular(CharsizeArg *csarg, char *const cur, colnr_T const vcol, + int32_t const cur_char) { - win_T *wp = cts->cts_win; - char *line = cts->cts_line; // start of the line - char *s = cts->cts_ptr; - colnr_T vcol = cts->cts_vcol; - int mb_added = 0; - - cts->cts_cur_text_width_left = 0; - cts->cts_cur_text_width_right = 0; + csarg->cur_text_width_left = 0; + csarg->cur_text_width_right = 0; - // No 'linebreak', 'showbreak' and 'breakindent': return quickly. - if (!wp->w_p_lbr && !wp->w_p_bri && *get_showbreak_value(wp) == NUL - && !cts->cts_has_virt_text) { - if (wp->w_p_wrap) { - return win_nolbr_chartabsize(cts, headp); - } - return win_chartabsize(wp, s, vcol); - } + win_T *wp = csarg->win; + buf_T *buf = wp->w_buffer; + char *line = csarg->line; + bool const use_tabstop = cur_char == TAB && csarg->use_tabstop; + int mb_added = 0; bool has_lcs_eol = wp->w_p_list && wp->w_p_lcs_chars.eol != NUL; // First get normal size, without 'linebreak' or inline virtual text - int size = win_chartabsize(wp, s, vcol); - if (*s == NUL && !has_lcs_eol) { - size = 0; // NUL is not displayed + int size; + int is_doublewidth = false; + if (use_tabstop) { + size = tabstop_padding(vcol, buf->b_p_ts, buf->b_p_vts_array); + } else if (*cur == NUL) { + // 1 cell for EOL list char (if present), as opposed to the two cell ^@ + // for a NUL character in the text. + size = has_lcs_eol ? 1 : 0; + } else if (cur_char < 0) { + size = kInvalidByteCells; + } else { + size = char2cells(cur_char); + is_doublewidth = size == 2 && cur_char > 0x80; } - bool is_doublewidth = size == 2 && MB_BYTE2LEN((uint8_t)(*s)) > 1; - if (cts->cts_has_virt_text) { + if (csarg->virt_row >= 0) { int tab_size = size; - int col = (int)(s - line); + int col = (int)(cur - line); while (true) { - MTKey mark = marktree_itr_current(cts->cts_iter); - if (mark.pos.row != cts->cts_row || mark.pos.col > col) { + MTKey mark = marktree_itr_current(csarg->iter); + if (mark.pos.row != csarg->virt_row || mark.pos.col > col) { break; } else if (mark.pos.col == col) { - if (!mt_end(mark) && mark.flags & (MT_FLAG_DECOR_VIRT_TEXT_INLINE)) { + if (!mt_end(mark) && (mark.flags & MT_FLAG_DECOR_VIRT_TEXT_INLINE) + && mt_scoped_in_win(mark, wp)) { DecorInline decor = mt_decor(mark); DecorVirtText *vt = decor.ext ? decor.data.ext.vt : NULL; while (vt) { if (!(vt->flags & kVTIsLines) && vt->pos == kVPosInline) { if (mt_right(mark)) { - cts->cts_cur_text_width_right += vt->width; + csarg->cur_text_width_right += vt->width; } else { - cts->cts_cur_text_width_left += vt->width; + csarg->cur_text_width_left += vt->width; } size += vt->width; - if (*s == TAB) { + if (use_tabstop) { // tab size changes because of the inserted text size -= tab_size; - tab_size = win_chartabsize(wp, s, vcol + size); + tab_size = tabstop_padding(vcol + size, buf->b_p_ts, buf->b_p_vts_array); size += tab_size; } } @@ -244,7 +178,8 @@ int win_lbr_chartabsize(chartabsize_T *cts, int *headp) } } } - marktree_itr_next(wp->w_buffer->b_marktree, cts->cts_iter); + marktree_itr_next_filter(wp->w_buffer->b_marktree, csarg->iter, csarg->virt_row + 1, 0, + inline_filter); } } @@ -254,16 +189,17 @@ int win_lbr_chartabsize(chartabsize_T *cts, int *headp) mb_added = 1; } + char *const sbr = get_showbreak_value(wp); + // May have to add something for 'breakindent' and/or 'showbreak' // string at the start of a screen line. int head = mb_added; - char *const sbr = get_showbreak_value(wp); // When "size" is 0, no new screen line is started. if (size > 0 && wp->w_p_wrap && (*sbr != NUL || wp->w_p_bri)) { int col_off_prev = win_col_off(wp); int width2 = wp->w_width_inner - col_off_prev + win_col_off2(wp); colnr_T wcol = vcol + col_off_prev; - colnr_T max_head_vcol = cts->cts_max_head_vcol; + colnr_T max_head_vcol = csarg->max_head_vcol; int added = 0; // cells taken by 'showbreak'/'breakindent' before current char @@ -274,11 +210,16 @@ int win_lbr_chartabsize(chartabsize_T *cts, int *headp) if (wcol >= width2 && width2 > 0) { wcol %= width2; } - if (*sbr != NUL) { - head_prev += vim_strsize(sbr); - } - if (wp->w_p_bri) { - head_prev += get_breakindent_win(wp, line); + head_prev = csarg->indent_width; + if (head_prev == INT_MIN) { + head_prev = 0; + if (*sbr != NUL) { + head_prev += vim_strsize(sbr); + } + if (wp->w_p_bri) { + head_prev += get_breakindent_win(wp, line); + } + csarg->indent_width = head_prev; } if (wcol < head_prev) { head_prev -= wcol; @@ -295,12 +236,16 @@ int win_lbr_chartabsize(chartabsize_T *cts, int *headp) if (wcol + size > wp->w_width) { // cells taken by 'showbreak'/'breakindent' halfway current char - int head_mid = 0; - if (*sbr != NUL) { - head_mid += vim_strsize(sbr); - } - if (wp->w_p_bri) { - head_mid += get_breakindent_win(wp, line); + int head_mid = csarg->indent_width; + if (head_mid == INT_MIN) { + head_mid = 0; + if (*sbr != NUL) { + head_mid += vim_strsize(sbr); + } + if (wp->w_p_bri) { + head_mid += get_breakindent_win(wp, line); + } + csarg->indent_width = head_mid; } if (head_mid > 0 && wcol + size > wp->w_width_inner) { // Calculate effective window width. @@ -320,7 +265,7 @@ int win_lbr_chartabsize(chartabsize_T *cts, int *headp) head += (max_head_vcol - (vcol + head_prev + prev_rem) + width2 - 1) / width2 * head_mid; } else if (max_head_vcol < 0) { - int off = virt_text_cursor_off(cts, *s == NUL); + int off = virt_text_cursor_off(csarg, *cur == NUL); if (off >= prev_rem) { if (size > off) { head += (1 + (off - prev_rem) / width) * head_mid; @@ -335,25 +280,20 @@ int win_lbr_chartabsize(chartabsize_T *cts, int *headp) size += added; } - if (headp != NULL) { - *headp = head; - } - - colnr_T vcol_start = 0; // start from where to consider linebreak + bool need_lbr = false; // If 'linebreak' set check at a blank before a non-blank if the line - // needs a break here - if (wp->w_p_lbr && wp->w_p_wrap && wp->w_width_inner != 0) { - char *t = cts->cts_line; + // needs a break here. + if (wp->w_p_lbr && wp->w_p_wrap && wp->w_width_inner != 0 + && vim_isbreak((uint8_t)cur[0]) && !vim_isbreak((uint8_t)cur[1])) { + char *t = csarg->line; while (vim_isbreak((uint8_t)t[0])) { t++; } - vcol_start = (colnr_T)(t - cts->cts_line); + // 'linebreak' is only needed when not in leading whitespace. + need_lbr = cur >= t; } - if (wp->w_p_lbr && vcol_start <= vcol - && vim_isbreak((uint8_t)s[0]) - && !vim_isbreak((uint8_t)s[1]) - && wp->w_p_wrap - && wp->w_width_inner != 0) { + if (need_lbr) { + char *s = cur; // Count all characters from first non-blank after a blank up to next // non-blank after a blank. int numberextra = win_col_off(wp); @@ -385,39 +325,54 @@ int win_lbr_chartabsize(chartabsize_T *cts, int *headp) } } - return size; + return (CharSize){ .width = size, .head = head }; } -/// Like win_lbr_chartabsize(), except that we know 'linebreak' is off and -/// 'wrap' is on. This means we need to check for a double-byte character that -/// doesn't fit at the end of the screen line. -/// -/// @param cts -/// @param headp +/// Like charsize_regular(), except it doesn't handle inline virtual text, +/// 'linebreak', 'breakindent' or 'showbreak'. +/// Handles normal characters, tabs and wrapping. +/// This function is always inlined. /// -/// @return The number of characters take up on the screen. -static int win_nolbr_chartabsize(chartabsize_T *cts, int *headp) +/// @see charsize_regular +/// @see charsize_fast +static inline CharSize charsize_fast_impl(win_T *const wp, bool use_tabstop, colnr_T const vcol, + int32_t const cur_char) + FUNC_ATTR_PURE FUNC_ATTR_ALWAYS_INLINE { - win_T *wp = cts->cts_win; - char *s = cts->cts_ptr; - colnr_T col = cts->cts_vcol; - - if ((*s == TAB) && (!wp->w_p_list || wp->w_p_lcs_chars.tab1)) { - return tabstop_padding(col, - wp->w_buffer->b_p_ts, - wp->w_buffer->b_p_vts_array); - } - int n = ptr2cells(s); - - // Add one cell for a double-width character in the last column of the - // window, displayed with a ">". - if ((n == 2) && (MB_BYTE2LEN((uint8_t)(*s)) > 1) && in_win_border(wp, col)) { - if (headp != NULL) { - *headp = 1; + // A tab gets expanded, depending on the current column + if (cur_char == TAB && use_tabstop) { + return (CharSize){ + .width = tabstop_padding(vcol, wp->w_buffer->b_p_ts, + wp->w_buffer->b_p_vts_array) + }; + } else { + int width; + if (cur_char < 0) { + width = kInvalidByteCells; + } else { + width = char2cells(cur_char); + } + + // If a double-width char doesn't fit at the end of a line, it wraps to the next line, + // and the last column displays a '>'. + if (width == 2 && cur_char >= 0x80 && wp->w_p_wrap && in_win_border(wp, vcol)) { + return (CharSize){ .width = 3, .head = 1 }; + } else { + return (CharSize){ .width = width }; } - return 3; } - return n; +} + +/// Like charsize_regular(), except it doesn't handle inline virtual text, +/// 'linebreak', 'breakindent' or 'showbreak'. +/// Handles normal characters, tabs and wrapping. +/// Can be used if CSType is kCharsizeFast. +/// +/// @see charsize_regular +CharSize charsize_fast(CharsizeArg *csarg, colnr_T const vcol, int32_t const cur_char) + FUNC_ATTR_PURE +{ + return charsize_fast_impl(csarg->win, csarg->use_tabstop, vcol, cur_char); } /// Check that virtual column "vcol" is in the rightmost column of window "wp". @@ -448,19 +403,65 @@ static bool in_win_border(win_T *wp, colnr_T vcol) return (vcol - width1) % width2 == width2 - 1; } +/// Calculate virtual column until the given "len". +/// +/// @param arg Argument to charsize functions. +/// @param vcol Starting virtual column. +/// @param len First byte of the end character, or MAXCOL. +/// +/// @return virtual column before the character at "len", +/// or full size of the line if "len" is MAXCOL. +int linesize_regular(CharsizeArg *const csarg, int vcol, colnr_T const len) +{ + char *const line = csarg->line; + + StrCharInfo ci = utf_ptr2StrCharInfo(line); + while (ci.ptr - line < len && *ci.ptr != NUL) { + vcol += charsize_regular(csarg, ci.ptr, vcol, ci.chr.value).width; + ci = utfc_next(ci); + } + + // Check for inline virtual text after the end of the line. + if (len == MAXCOL && csarg->virt_row >= 0) { + (void)charsize_regular(csarg, ci.ptr, vcol, ci.chr.value); + vcol += csarg->cur_text_width_left + csarg->cur_text_width_right; + } + + return vcol; +} + +/// Like linesize_regular(), but can be used when CStype is kCharsizeFast. +/// +/// @see linesize_regular +int linesize_fast(CharsizeArg const *const csarg, int vcol, colnr_T const len) +{ + win_T *const wp = csarg->win; + bool const use_tabstop = csarg->use_tabstop; + + char *const line = csarg->line; + + StrCharInfo ci = utf_ptr2StrCharInfo(line); + while (ci.ptr - line < len && *ci.ptr != NUL) { + vcol += charsize_fast_impl(wp, use_tabstop, vcol, ci.chr.value).width; + ci = utfc_next(ci); + } + + return vcol; +} + /// Get how many virtual columns inline virtual text should offset the cursor. /// -/// @param cts should contain information stored by win_lbr_chartabsize() +/// @param csarg should contain information stored by charsize_regular() /// about widths of left and right gravity virtual text /// @param on_NUL whether this is the end of the line -static int virt_text_cursor_off(chartabsize_T *cts, bool on_NUL) +static int virt_text_cursor_off(const CharsizeArg *csarg, bool on_NUL) { int off = 0; if (!on_NUL || !(State & MODE_NORMAL)) { - off += cts->cts_cur_text_width_left; + off += csarg->cur_text_width_left; } if (!on_NUL && (State & MODE_NORMAL)) { - off += cts->cts_cur_text_width_right; + off += csarg->cur_text_width_right; } return off; } @@ -479,115 +480,53 @@ static int virt_text_cursor_off(chartabsize_T *cts, bool on_NUL) /// @param end void getvcol(win_T *wp, pos_T *pos, colnr_T *start, colnr_T *cursor, colnr_T *end) { - char *ptr; // points to current char - char *posptr; // points to char at pos->col - int incr; - int head; - colnr_T *vts = wp->w_buffer->b_p_vts_array; - int ts = (int)wp->w_buffer->b_p_ts; - - colnr_T vcol = 0; - char *line = ptr = ml_get_buf(wp->w_buffer, pos->lnum); // start of the line + char *const line = ml_get_buf(wp->w_buffer, pos->lnum); // start of the line + int const end_col = pos->col; - if (pos->col == MAXCOL) { - // continue until the NUL - posptr = NULL; - } else { - // In a few cases the position can be beyond the end of the line. - for (colnr_T i = 0; i < pos->col; i++) { - if (ptr[i] == NUL) { - pos->col = i; - break; - } - } - posptr = ptr + pos->col; - posptr -= utf_head_off(line, posptr); - } - - chartabsize_T cts; + CharsizeArg csarg; bool on_NUL = false; - init_chartabsize_arg(&cts, wp, pos->lnum, 0, line, line); - cts.cts_max_head_vcol = -1; - - // This function is used very often, do some speed optimizations. - // When 'list', 'linebreak', 'showbreak' and 'breakindent' are not set - // and there are no virtual text use a simple loop. - // Also use this when 'list' is set but tabs take their normal size. - if ((!wp->w_p_list || (wp->w_p_lcs_chars.tab1 != NUL)) - && !wp->w_p_lbr - && *get_showbreak_value(wp) == NUL - && !wp->w_p_bri - && !cts.cts_has_virt_text) { - while (true) { - head = 0; - int c = (uint8_t)(*ptr); + CSType const cstype = init_charsize_arg(&csarg, wp, pos->lnum, line); + csarg.max_head_vcol = -1; - // make sure we don't go past the end of the line - if (c == NUL) { - // NUL at end of line only takes one column - incr = 1; + colnr_T vcol = 0; + CharSize char_size; + StrCharInfo ci = utf_ptr2StrCharInfo(line); + if (cstype == kCharsizeFast) { + bool const use_tabstop = csarg.use_tabstop; + while (true) { + if (*ci.ptr == NUL) { + // if cursor is at NUL, it is treated like 1 cell char + char_size = (CharSize){ .width = 1 }; break; } - - // A tab gets expanded, depending on the current column - if (c == TAB) { - incr = tabstop_padding(vcol, ts, vts); - } else { - // For utf-8, if the byte is >= 0x80, need to look at - // further bytes to find the cell width. - if (c >= 0x80) { - incr = utf_ptr2cells(ptr); - } else { - incr = byte2cells(c); - } - - // If a double-cell char doesn't fit at the end of a line - // it wraps to the next line, it's like this char is three - // cells wide. - if ((incr == 2) - && wp->w_p_wrap - && (MB_BYTE2LEN((uint8_t)(*ptr)) > 1) - && in_win_border(wp, vcol)) { - incr++; - head = 1; - } - } - - if ((posptr != NULL) && (ptr >= posptr)) { - // character at pos->col + char_size = charsize_fast_impl(wp, use_tabstop, vcol, ci.chr.value); + StrCharInfo const next = utfc_next(ci); + if (next.ptr - line > end_col) { break; } - - vcol += incr; - MB_PTR_ADV(ptr); + ci = next; + vcol += char_size.width; } } else { while (true) { - // A tab gets expanded, depending on the current column - // Other things also take up space. - head = 0; - incr = win_lbr_chartabsize(&cts, &head); - - // make sure we don't go past the end of the line - if (*cts.cts_ptr == NUL) { - // NUL at end of line only takes one column, unless there is virtual text - incr = MAX(1, cts.cts_cur_text_width_left + cts.cts_cur_text_width_right); + char_size = charsize_regular(&csarg, ci.ptr, vcol, ci.chr.value); + if (*ci.ptr == NUL) { + // if cursor is at NUL, it is treated like 1 cell char unless there is virtual text + char_size.width = MAX(1, csarg.cur_text_width_left + csarg.cur_text_width_right); on_NUL = true; break; } - - if ((posptr != NULL) && (cts.cts_ptr >= posptr)) { - // character at pos->col + StrCharInfo const next = utfc_next(ci); + if (next.ptr - line > end_col) { break; } - - cts.cts_vcol += incr; - MB_PTR_ADV(cts.cts_ptr); + ci = next; + vcol += char_size.width; } - vcol = cts.cts_vcol; - ptr = cts.cts_ptr; } - clear_chartabsize_arg(&cts); + + int head = char_size.head; + int incr = char_size.width; if (start != NULL) { *start = vcol + head; @@ -598,7 +537,7 @@ void getvcol(win_T *wp, pos_T *pos, colnr_T *start, colnr_T *cursor, colnr_T *en } if (cursor != NULL) { - if ((*ptr == TAB) + if (ci.chr.value == TAB && (State & MODE_NORMAL) && !wp->w_p_list && !virtual_active() @@ -606,7 +545,7 @@ void getvcol(win_T *wp, pos_T *pos, colnr_T *start, colnr_T *cursor, colnr_T *en // cursor at end *cursor = vcol + incr - 1; } else { - vcol += virt_text_cursor_off(&cts, on_NUL); + vcol += virt_text_cursor_off(&csarg, on_NUL); // cursor at start *cursor = vcol + head; } @@ -730,7 +669,8 @@ void getvcols(win_T *wp, pos_T *pos1, pos_T *pos2, colnr_T *left, colnr_T *right /// Check if there may be filler lines anywhere in window "wp". bool win_may_fill(win_T *wp) { - return (wp->w_p_diff && diffopt_filler()) || wp->w_buffer->b_virt_line_blocks; + return ((wp->w_p_diff && diffopt_filler()) + || buf_meta_total(wp->w_buffer, kMTMetaLines)); } /// Return the number of filler lines above "lnum". @@ -795,14 +735,18 @@ int plines_win_nofill(win_T *wp, linenr_T lnum, bool limit_winheight) int plines_win_nofold(win_T *wp, linenr_T lnum) { char *s = ml_get_buf(wp->w_buffer, lnum); - chartabsize_T cts; - init_chartabsize_arg(&cts, wp, lnum, 0, s, s); - if (*s == NUL && !cts.cts_has_virt_text) { + CharsizeArg csarg; + CSType const cstype = init_charsize_arg(&csarg, wp, lnum, s); + if (*s == NUL && csarg.virt_row < 0) { return 1; // be quick for an empty line } - win_linetabsize_cts(&cts, (colnr_T)MAXCOL); - clear_chartabsize_arg(&cts); - int64_t col = cts.cts_vcol; + + int64_t col; + if (cstype == kCharsizeFast) { + col = linesize_fast(&csarg, 0, MAXCOL); + } else { + col = linesize_regular(&csarg, 0, MAXCOL); + } // If list mode is on, then the '$' at the end of the line may take up one // extra column. @@ -841,26 +785,33 @@ int plines_win_col(win_T *wp, linenr_T lnum, long column) char *line = ml_get_buf(wp->w_buffer, lnum); - colnr_T col = 0; - chartabsize_T cts; + CharsizeArg csarg; + CSType const cstype = init_charsize_arg(&csarg, wp, lnum, line); - init_chartabsize_arg(&cts, wp, lnum, 0, line, line); - while (*cts.cts_ptr != NUL && --column >= 0) { - cts.cts_vcol += win_lbr_chartabsize(&cts, NULL); - MB_PTR_ADV(cts.cts_ptr); + colnr_T vcol = 0; + StrCharInfo ci = utf_ptr2StrCharInfo(line); + if (cstype == kCharsizeFast) { + bool const use_tabstop = csarg.use_tabstop; + while (*ci.ptr != NUL && --column >= 0) { + vcol += charsize_fast_impl(wp, use_tabstop, vcol, ci.chr.value).width; + ci = utfc_next(ci); + } + } else { + while (*ci.ptr != NUL && --column >= 0) { + vcol += charsize_regular(&csarg, ci.ptr, vcol, ci.chr.value).width; + ci = utfc_next(ci); + } } - // If *cts.cts_ptr is a TAB, and the TAB is not displayed as ^I, and we're not + // If current char is a TAB, and the TAB is not displayed as ^I, and we're not // in MODE_INSERT state, then col must be adjusted so that it represents the // last screen position of the TAB. This only fixes an error when the TAB // wraps from one screen line to the next (when 'columns' is not a multiple // of 'ts') -- webb. - col = cts.cts_vcol; - if (*cts.cts_ptr == TAB && (State & MODE_NORMAL) - && (!wp->w_p_list || wp->w_p_lcs_chars.tab1)) { - col += win_lbr_chartabsize(&cts, NULL) - 1; + colnr_T col = vcol; + if (ci.chr.value == TAB && (State & MODE_NORMAL) && csarg.use_tabstop) { + col += win_charsize(cstype, col, ci.ptr, ci.chr.value, &csarg).width - 1; } - clear_chartabsize_arg(&cts); // Add column offset for 'number', 'relativenumber', 'foldcolumn', etc. int width = wp->w_width_inner - win_col_off(wp); |