diff options
Diffstat (limited to 'src/nvim/buffer.c')
| -rw-r--r-- | src/nvim/buffer.c | 562 |
1 files changed, 417 insertions, 145 deletions
diff --git a/src/nvim/buffer.c b/src/nvim/buffer.c index 34e24712cd..72716daf0e 100644 --- a/src/nvim/buffer.c +++ b/src/nvim/buffer.c @@ -141,14 +141,21 @@ open_buffer ( /* mark cursor position as being invalid */ curwin->w_valid = 0; - if (curbuf->b_ffname != NULL - ) { + if (curbuf->b_ffname != NULL) { + int old_msg_silent = msg_silent; + if (shortmess(SHM_FILEINFO)) { + msg_silent = 1; + } + retval = readfile(curbuf->b_ffname, curbuf->b_fname, - (linenr_T)0, (linenr_T)0, (linenr_T)MAXLNUM, eap, - flags | READ_NEW); - /* Help buffer is filtered. */ - if (curbuf->b_help) + (linenr_T)0, (linenr_T)0, (linenr_T)MAXLNUM, eap, + flags | READ_NEW); + msg_silent = old_msg_silent; + + // Help buffer is filtered. + if (curbuf->b_help) { fix_help_buffer(); + } } else if (read_stdin) { int save_bin = curbuf->b_p_bin; linenr_T line_count; @@ -257,17 +264,16 @@ open_buffer ( return retval; } -/* - * Return TRUE if "buf" points to a valid buffer (in the buffer list). - */ -int buf_valid(buf_T *buf) +/// Check that "buf" points to a valid buffer (in the buffer list). +bool buf_valid(buf_T *buf) + FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { FOR_ALL_BUFFERS(bp) { if (bp == buf) { - return TRUE; + return true; } } - return FALSE; + return false; } /* @@ -401,10 +407,9 @@ close_buffer ( buf->b_nwindows = nwindows; buf_freeall(buf, (del_buf ? BFA_DEL : 0) + (wipe_buf ? BFA_WIPE : 0)); - if ( - win_valid(win) && - win->w_buffer == buf) - win->w_buffer = NULL; /* make sure we don't use the buffer now */ + if (win_valid(win) && win->w_buffer == buf) { + win->w_buffer = NULL; // make sure we don't use the buffer now + } /* Autocommands may have deleted the buffer. */ if (!buf_valid(buf)) @@ -580,16 +585,17 @@ free_buffer_stuff ( ) { if (free_options) { - clear_wininfo(buf); /* including window-local options */ - free_buf_options(buf, TRUE); + clear_wininfo(buf); // including window-local options + free_buf_options(buf, true); ga_clear(&buf->b_s.b_langp); } - vars_clear(&buf->b_vars->dv_hashtab); /* free all internal variables */ + vars_clear(&buf->b_vars->dv_hashtab); // free all internal variables hash_init(&buf->b_vars->dv_hashtab); - uc_clear(&buf->b_ucmds); /* clear local user commands */ - buf_delete_signs(buf); /* delete any signs */ - map_clear_int(buf, MAP_ALL_MODES, TRUE, FALSE); /* clear local mappings */ - map_clear_int(buf, MAP_ALL_MODES, TRUE, TRUE); /* clear local abbrevs */ + uc_clear(&buf->b_ucmds); // clear local user commands + buf_delete_signs(buf); // delete any signs + bufhl_clear_all(buf); // delete any highligts + map_clear_int(buf, MAP_ALL_MODES, true, false); // clear local mappings + map_clear_int(buf, MAP_ALL_MODES, true, true); // clear local abbrevs xfree(buf->b_start_fenc); buf->b_start_fenc = NULL; } @@ -1287,14 +1293,15 @@ void enter_buffer(buf_T *buf) redraw_later(NOT_VALID); } -/* - * Change to the directory of the current buffer. - */ +// Change to the directory of the current buffer. +// Don't do this while still starting up. void do_autochdir(void) { if (p_acd) { - if (curbuf->b_ffname != NULL && vim_chdirfile(curbuf->b_ffname) == OK) { - shorten_fnames(TRUE); + if (starting == 0 + && curbuf->b_ffname != NULL + && vim_chdirfile(curbuf->b_ffname) == OK) { + shorten_fnames(true); } } } @@ -1332,8 +1339,8 @@ buflist_new ( /* We can use inode numbers when the file exists. Works better * for hard links. */ FileID file_id; - bool file_id_valid = (sfname != NULL && - os_fileid((char *)sfname, &file_id)); + bool file_id_valid = (sfname != NULL + && os_fileid((char *)sfname, &file_id)); if (ffname != NULL && !(flags & BLN_DUMMY) && (buf = buflist_findname_file_id(ffname, &file_id, file_id_valid)) != NULL) { @@ -1546,6 +1553,7 @@ void free_buf_options(buf_T *buf, int free_p_ff) clear_string_option(&buf->b_p_ep); clear_string_option(&buf->b_p_path); clear_string_option(&buf->b_p_tags); + clear_string_option(&buf->b_p_tc); clear_string_option(&buf->b_p_dict); clear_string_option(&buf->b_p_tsr); clear_string_option(&buf->b_p_qe); @@ -1601,21 +1609,28 @@ int buflist_getfile(int n, linenr_T lnum, int options, int forceit) col = 0; if (options & GETF_SWITCH) { - /* If 'switchbuf' contains "useopen": jump to first window containing - * "buf" if one exists */ - if (swb_flags & SWB_USEOPEN) + // If 'switchbuf' contains "useopen": jump to first window containing + // "buf" if one exists + if (swb_flags & SWB_USEOPEN) { wp = buf_jump_open_win(buf); - /* If 'switchbuf' contains "usetab": jump to first window in any tab - * page containing "buf" if one exists */ - if (wp == NULL && (swb_flags & SWB_USETAB)) + } + + // If 'switchbuf' contains "usetab": jump to first window in any tab + // page containing "buf" if one exists + if (wp == NULL && (swb_flags & SWB_USETAB)) { wp = buf_jump_open_tab(buf); - /* If 'switchbuf' contains "split" or "newtab" and the current buffer - * isn't empty: open new window */ - if (wp == NULL && (swb_flags & (SWB_SPLIT | SWB_NEWTAB)) && !bufempty()) { - if (swb_flags & SWB_NEWTAB) /* Open in a new tab */ + } + + // If 'switchbuf' contains "split", "vsplit" or "newtab" and the + // current buffer isn't empty: open new tab or window + if (wp == NULL && (swb_flags & (SWB_VSPLIT | SWB_SPLIT | SWB_NEWTAB)) + && !bufempty()) { + if (swb_flags & SWB_NEWTAB) { tabpage_new(); - else if (win_split(0, 0) == FAIL) /* Open in a new window */ + } else if (win_split(0, (swb_flags & SWB_VSPLIT) ? WSP_VERT : 0) + == FAIL) { return FAIL; + } RESET_BINDING(curwin); } } @@ -1734,12 +1749,15 @@ int buflist_findpat( int toggledollar; if (pattern_end == pattern + 1 && (*pattern == '%' || *pattern == '#')) { - if (*pattern == '%') + if (*pattern == '%') { match = curbuf->b_fnum; - else + } else { match = curwin->w_alt_fnum; - if (diffmode && !diff_mode_buf(buflist_findnr(match))) + } + buf_T *found_buf = buflist_findnr(match); + if (diffmode && !(found_buf && diff_mode_buf(found_buf))) { match = -1; + } } /* * Try four ways of matching a listed buffer: @@ -2044,16 +2062,15 @@ void buflist_setfpos(buf_T *const buf, win_T *const win, } -/* - * Return true when "wip" has 'diff' set and the diff is only for another tab - * page. That's because a diff is local to a tab page. - */ +/// Check that "wip" has 'diff' set and the diff is only for another tab page. +/// That's because a diff is local to a tab page. static bool wininfo_other_tab_diff(wininfo_T *wip) + FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL { if (wip->wi_opt.wo_diff) { FOR_ALL_WINDOWS_IN_TAB(wp, curtab) { - /* return false when it's a window in the current tab page, thus - * the buffer was in diff mode here */ + // return false when it's a window in the current tab page, thus + // the buffer was in diff mode here if (wip->wi_win == wp) { return false; } @@ -2178,15 +2195,16 @@ void buflist_list(exarg_T *eap) len = vim_snprintf((char *)IObuff, IOSIZE - 20, "%3d%c%c%c%c%c \"%s\"", buf->b_fnum, buf->b_p_bl ? ' ' : 'u', - buf == curbuf ? '%' : - (curwin->w_alt_fnum == buf->b_fnum ? '#' : ' '), - buf->b_ml.ml_mfp == NULL ? ' ' : - (buf->b_nwindows == 0 ? 'h' : 'a'), + buf == curbuf ? '%' : (curwin->w_alt_fnum == buf->b_fnum ? '#' : ' '), + buf->b_ml.ml_mfp == NULL ? ' ' : (buf->b_nwindows == 0 ? 'h' : 'a'), !MODIFIABLE(buf) ? '-' : (buf->b_p_ro ? '=' : ' '), - (buf->b_flags & BF_READERR) ? 'x' - : (bufIsChanged(buf) ? '+' : ' '), + (buf->b_flags & BF_READERR) ? 'x' : (bufIsChanged(buf) ? '+' : ' '), NameBuff); + if (len > IOSIZE - 20) { + len = IOSIZE - 20; + } + /* put "line 999" in column 40 or after the file name */ i = 40 - vim_strsize(IObuff); do { @@ -2410,52 +2428,62 @@ void buflist_altfpos(win_T *win) buflist_setfpos(curbuf, win, win->w_cursor.lnum, win->w_cursor.col, TRUE); } -/* - * Return TRUE if 'ffname' is not the same file as current file. - * Fname must have a full path (expanded by path_get_absolute_path()). - */ -int otherfile(char_u *ffname) +/// Check that "ffname" is not the same file as current file. +/// Fname must have a full path (expanded by path_get_absolute_path()). +/// +/// @param ffname full path name to check +bool otherfile(char_u *ffname) + FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL { return otherfile_buf(curbuf, ffname, NULL, false); } -static int otherfile_buf(buf_T *buf, char_u *ffname, - FileID *file_id_p, bool file_id_valid) +/// Check that "ffname" is not the same file as the file loaded in "buf". +/// Fname must have a full path (expanded by path_get_absolute_path()). +/// +/// @param buf buffer to check +/// @param ffname full path name to check +/// @param file_id_p information about the file at "ffname". +/// @param file_id_valid whether a valid "file_id_p" was passed in. +static bool otherfile_buf(buf_T *buf, char_u *ffname, FileID *file_id_p, + bool file_id_valid) + FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { - /* no name is different */ + // no name is different if (ffname == NULL || *ffname == NUL || buf->b_ffname == NULL) { - return TRUE; + return true; } if (fnamecmp(ffname, buf->b_ffname) == 0) { - return FALSE; + return false; } { FileID file_id; - /* If no struct stat given, get it now */ + // If no struct stat given, get it now if (file_id_p == NULL) { file_id_p = &file_id; file_id_valid = os_fileid((char *)ffname, file_id_p); } if (!file_id_valid) { // file_id not valid, assume files are different. - return TRUE; + return true; } - /* Use dev/ino to check if the files are the same, even when the names - * are different (possible with links). Still need to compare the - * name above, for when the file doesn't exist yet. - * Problem: The dev/ino changes when a file is deleted (and created - * again) and remains the same when renamed/moved. We don't want to - * stat() each buffer each time, that would be too slow. Get the - * dev/ino again when they appear to match, but not when they appear - * to be different: Could skip a buffer when it's actually the same - * file. */ + // Use dev/ino to check if the files are the same, even when the names + // are different (possible with links). Still need to compare the + // name above, for when the file doesn't exist yet. + // Problem: The dev/ino changes when a file is deleted (and created + // again) and remains the same when renamed/moved. We don't want to + // stat() each buffer each time, that would be too slow. Get the + // dev/ino again when they appear to match, but not when they appear + // to be different: Could skip a buffer when it's actually the same + // file. if (buf_same_file_id(buf, file_id_p)) { buf_set_file_id(buf); - if (buf_same_file_id(buf, file_id_p)) - return FALSE; + if (buf_same_file_id(buf, file_id_p)) { + return false; + } } } - return TRUE; + return true; } // Set file_id for a buffer. @@ -2472,11 +2500,14 @@ void buf_set_file_id(buf_T *buf) } } -// return TRUE if file_id in buffer "buf" matches with "file_id". +/// Check that file_id in buffer "buf" matches with "file_id". +/// +/// @param buf buffer +/// @param file_id file id static bool buf_same_file_id(buf_T *buf, FileID *file_id) + FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL { - return buf->file_id_valid - && os_fileid_equal(&(buf->file_id), file_id); + return buf->file_id_valid && os_fileid_equal(&(buf->file_id), file_id); } /* @@ -2759,23 +2790,28 @@ void maketitle(void) resettitle(); } -/* - * Used for title and icon: Check if "str" differs from "*last". Set "*last" - * from "str" if it does. - * Return TRUE when "*last" changed. - */ -static int ti_change(char_u *str, char_u **last) +/// Used for title and icon: Check if "str" differs from "*last". Set "*last" +/// from "str" if it does by freeing the old value of "*last" and duplicating +/// "str". +/// +/// @param str desired title string +/// @param[in,out] last current title string +// +/// @return true when "*last" changed. +static bool ti_change(char_u *str, char_u **last) + FUNC_ATTR_WARN_UNUSED_RESULT { if ((str == NULL) != (*last == NULL) || (str != NULL && *last != NULL && STRCMP(str, *last) != 0)) { xfree(*last); - if (str == NULL) + if (str == NULL) { *last = NULL; - else + } else { *last = vim_strsave(str); - return TRUE; + } + return true; } - return FALSE; + return false; } /* @@ -3003,7 +3039,7 @@ int build_stl_str_hl( && item[groupitem[groupdepth]].minwid == 0) { bool has_normal_items = false; for (long n = groupitem[groupdepth] + 1; n < curitem; n++) { - if (item[n].type == Normal) { + if (item[n].type == Normal || item[n].type == Highlight) { has_normal_items = true; break; } @@ -3895,6 +3931,11 @@ void get_rel_pos(win_T *wp, char_u *buf, int buflen) above = wp->w_topline - 1; above += diff_check_fill(wp, wp->w_topline) - wp->w_topfill; + if (wp->w_topline == 1 && wp->w_topfill >= 1) { + // All buffer lines are displayed and there is an indication + // of filler lines, that can be considered seeing all lines. + above = 0; + } below = wp->w_buffer->b_ml.ml_line_count - wp->w_botline + 1; if (below <= 0) STRLCPY(buf, (above == 0 ? _("All") : _("Bot")), buflen); @@ -3906,26 +3947,29 @@ void get_rel_pos(win_T *wp, char_u *buf, int buflen) : (int)(above * 100L / (above + below))); } -/* - * Append (file 2 of 8) to "buf[buflen]", if editing more than one file. - * Return TRUE if it was appended. - */ -static int -append_arg_number ( - win_T *wp, - char_u *buf, - int buflen, - int add_file /* Add "file" before the arg number */ -) +/// Append (file 2 of 8) to "buf[buflen]", if editing more than one file. +/// +/// @param wp window whose buffers to check +/// @param[in,out] buf string buffer to add the text to +/// @param buflen length of the string buffer +/// @param add_file if true, add "file" before the arg number +/// +/// @return true if it was appended. +static bool append_arg_number(win_T *wp, char_u *buf, int buflen, bool add_file) + FUNC_ATTR_NONNULL_ALL { - char_u *p; + // Nothing to do + if (ARGCOUNT <= 1) { + return false; + } - if (ARGCOUNT <= 1) /* nothing to do */ - return FALSE; + char_u *p = buf + STRLEN(buf); // go to the end of the buffer + + // Early out if the string is getting too long + if (p - buf + 35 >= buflen) { + return false; + } - p = buf + STRLEN(buf); /* go to the end of the buffer */ - if (p - buf + 35 >= buflen) /* getting too long */ - return FALSE; *p++ = ' '; *p++ = '('; if (add_file) { @@ -3933,9 +3977,10 @@ append_arg_number ( p += 5; } vim_snprintf((char *)p, (size_t)(buflen - (p - buf)), - wp->w_arg_idx_invalid ? "(%d) of %d)" - : "%d of %d)", wp->w_arg_idx + 1, ARGCOUNT); - return TRUE; + wp->w_arg_idx_invalid + ? "(%d) of %d)" + : "%d of %d)", wp->w_arg_idx + 1, ARGCOUNT); + return true; } /* @@ -4569,11 +4614,16 @@ char_u *buf_spname(buf_T *buf) return NULL; } -/* - * Find a window for buffer "buf". - * If found true is returned and "wp" and "tp" are set to the window and tabpage. - * If not found false is returned. - */ +/// Find a window for buffer "buf". +/// If found true is returned and "wp" and "tp" are set to +/// the window and tabpage. +/// If not found, false is returned. +/// +/// @param buf buffer to find a window for +/// @param[out] wp stores the found window +/// @param[out] tp stores the found tabpage +/// +/// @return true if a window was found for the buffer. bool find_win_for_buf(buf_T *buf, win_T **wp, tabpage_T **tp) { *wp = NULL; @@ -4855,6 +4905,224 @@ void sign_mark_adjust(linenr_T line1, linenr_T line2, long amount, long amount_a } } +// bufhl: plugin highlights associated with a buffer + +/// Adds a highlight to buffer. +/// +/// Unlike matchaddpos() highlights follow changes to line numbering (as lines +/// are inserted/removed above the highlighted line), like signs and marks do. +/// +/// When called with "src_id" set to 0, a unique source id is generated and +/// returned. Succesive calls can pass it in as "src_id" to add new highlights +/// to the same source group. All highlights in the same group can be cleared +/// at once. If the highlight never will be manually deleted pass in -1 for +/// "src_id" +/// +/// if "hl_id" or "lnum" is invalid no highlight is added, but a new src_id +/// is still returned. +/// +/// @param buf The buffer to add highlights to +/// @param src_id src_id to use or 0 to use a new src_id group, +/// or -1 for ungrouped highlight. +/// @param hl_id Id of the highlight group to use +/// @param lnum The line to highlight +/// @param col_start First column to highlight +/// @param col_end The last column to highlight, +/// or -1 to highlight to end of line +/// @return The src_id that was used +int bufhl_add_hl(buf_T *buf, + int src_id, + int hl_id, + linenr_T lnum, + colnr_T col_start, + colnr_T col_end) { + static int next_src_id = 1; + if (src_id == 0) { + src_id = next_src_id++; + } + if (hl_id <= 0) { + // no highlight group or invalid line, just return src_id + return src_id; + } + if (!buf->b_bufhl_info) { + buf->b_bufhl_info = map_new(linenr_T, bufhl_vec_T)(); + } + bufhl_vec_T* lineinfo = map_ref(linenr_T, bufhl_vec_T)(buf->b_bufhl_info, + lnum, true); + + bufhl_hl_item_T *hlentry = kv_pushp(bufhl_hl_item_T, *lineinfo); + hlentry->src_id = src_id; + hlentry->hl_id = hl_id; + hlentry->start = col_start; + hlentry->stop = col_end; + + if (0 < lnum && lnum <= buf->b_ml.ml_line_count) { + changed_lines_buf(buf, lnum, lnum+1, 0); + redraw_buf_later(buf, VALID); + } + return src_id; +} + +/// Clear bufhl highlights from a given source group and range of lines. +/// +/// @param buf The buffer to remove highlights from +/// @param src_id highlight source group to clear, or -1 to clear all groups. +/// @param line_start first line to clear +/// @param line_end last line to clear or MAXLNUM to clear to end of file. +void bufhl_clear_line_range(buf_T *buf, + int src_id, + linenr_T line_start, + linenr_T line_end) { + if (!buf->b_bufhl_info) { + return; + } + linenr_T line; + linenr_T first_changed = MAXLNUM, last_changed = -1; + // In the case line_start - line_end << bufhl_info->size + // it might be better to reverse this, i e loop over the lines + // to clear on. + bufhl_vec_T unused; + map_foreach(buf->b_bufhl_info, line, unused, { + (void)unused; + if (line_start <= line && line <= line_end) { + if (bufhl_clear_line(buf->b_bufhl_info, src_id, line)) { + if (line > last_changed) { + last_changed = line; + } + if (line < first_changed) { + first_changed = line; + } + } + } + }) + + if (last_changed != -1) { + changed_lines_buf(buf, first_changed, last_changed+1, 0); + redraw_buf_later(buf, VALID); + } +} + +/// Clear bufhl highlights from a given source group and given line +/// +/// @param bufhl_info The highlight info for the buffer +/// @param src_id Highlight source group to clear, or -1 to clear all groups. +/// @param lnum Linenr where the highlight should be cleared +static bool bufhl_clear_line(bufhl_info_T *bufhl_info, int src_id, int lnum) { + bufhl_vec_T* lineinfo = map_ref(linenr_T, bufhl_vec_T)(bufhl_info, + lnum, false); + size_t oldsize = kv_size(*lineinfo); + if (src_id < 0) { + kv_size(*lineinfo) = 0; + } else { + size_t newind = 0; + for (size_t i = 0; i < kv_size(*lineinfo); i++) { + if (kv_A(*lineinfo, i).src_id != src_id) { + if (i != newind) { + kv_A(*lineinfo, newind) = kv_A(*lineinfo, i); + } + newind++; + } + } + kv_size(*lineinfo) = newind; + } + + if (kv_size(*lineinfo) == 0) { + kv_destroy(*lineinfo); + map_del(linenr_T, bufhl_vec_T)(bufhl_info, lnum); + } + return kv_size(*lineinfo) != oldsize; +} + +/// Remove all highlights and free the highlight data +void bufhl_clear_all(buf_T* buf) { + if (!buf->b_bufhl_info) { + return; + } + bufhl_clear_line_range(buf, -1, 1, MAXLNUM); + map_free(linenr_T, bufhl_vec_T)(buf->b_bufhl_info); + buf->b_bufhl_info = NULL; +} + +/// Adjust a placed highlight for inserted/deleted lines. +void bufhl_mark_adjust(buf_T* buf, + linenr_T line1, + linenr_T line2, + long amount, + long amount_after) { + if (!buf->b_bufhl_info) { + return; + } + + bufhl_info_T *newmap = map_new(linenr_T, bufhl_vec_T)(); + linenr_T line; + bufhl_vec_T lineinfo; + map_foreach(buf->b_bufhl_info, line, lineinfo, { + if (line >= line1 && line <= line2) { + if (amount == MAXLNUM) { + bufhl_clear_line(buf->b_bufhl_info, -1, line); + continue; + } else { + line += amount; + } + } else if (line > line2) { + line += amount_after; + } + map_put(linenr_T, bufhl_vec_T)(newmap, line, lineinfo); + }); + map_free(linenr_T, bufhl_vec_T)(buf->b_bufhl_info); + buf->b_bufhl_info = newmap; +} + + +/// Get highlights to display at a specific line +/// +/// @param buf The buffer handle +/// @param lnum The line number +/// @param[out] info The highligts for the line +/// @return true if there was highlights to display +bool bufhl_start_line(buf_T *buf, linenr_T lnum, bufhl_lineinfo_T *info) { + if (!buf->b_bufhl_info) { + return false; + } + + info->valid_to = -1; + info->entries = map_get(linenr_T, bufhl_vec_T)(buf->b_bufhl_info, lnum); + return kv_size(info->entries) > 0; +} + +/// get highlighting at column col +/// +/// It is is assumed this will be called with +/// non-decreasing column nrs, so that it is +/// possible to only recalculate highlights +/// at endpoints. +/// +/// @param info The info returned by bufhl_start_line +/// @param col The column to get the attr for +/// @return The highilight attr to display at the column +int bufhl_get_attr(bufhl_lineinfo_T *info, colnr_T col) { + if (col <= info->valid_to) { + return info->current; + } + int attr = 0; + info->valid_to = MAXCOL; + for (size_t i = 0; i < kv_size(info->entries); i++) { + bufhl_hl_item_T entry = kv_A(info->entries, i); + if (entry.start <= col && col <= entry.stop) { + int entry_attr = syn_id2attr(entry.hl_id); + attr = hl_combine_attr(attr, entry_attr); + if (entry.stop < info->valid_to) { + info->valid_to = entry.stop; + } + } else if (col < entry.start && entry.start-1 < info->valid_to) { + info->valid_to = entry.start-1; + } + } + info->current = attr; + return attr; +} + + /* * Set 'buflisted' for curbuf to "on" and trigger autocommands if it changed. */ @@ -4869,50 +5137,54 @@ void set_buflisted(int on) } } -/* - * Read the file for "buf" again and check if the contents changed. - * Return TRUE if it changed or this could not be checked. - */ -int buf_contents_changed(buf_T *buf) +/// Read the file for "buf" again and check if the contents changed. +/// Return true if it changed or this could not be checked. +/// +/// @param buf buffer to check +/// +/// @return true if the buffer's contents have changed +bool buf_contents_changed(buf_T *buf) + FUNC_ATTR_NONNULL_ALL { - buf_T *newbuf; - int differ = TRUE; - linenr_T lnum; - aco_save_T aco; - exarg_T ea; + bool differ = true; - /* Allocate a buffer without putting it in the buffer list. */ - newbuf = buflist_new(NULL, NULL, (linenr_T)1, BLN_DUMMY); - if (newbuf == NULL) - return TRUE; + // Allocate a buffer without putting it in the buffer list. + buf_T *newbuf = buflist_new(NULL, NULL, (linenr_T)1, BLN_DUMMY); + if (newbuf == NULL) { + return true; + } - /* Force the 'fileencoding' and 'fileformat' to be equal. */ + // Force the 'fileencoding' and 'fileformat' to be equal. + exarg_T ea; prep_exarg(&ea, buf); - /* set curwin/curbuf to buf and save a few things */ + // set curwin/curbuf to buf and save a few things + aco_save_T aco; aucmd_prepbuf(&aco, newbuf); if (ml_open(curbuf) == OK && readfile(buf->b_ffname, buf->b_fname, - (linenr_T)0, (linenr_T)0, (linenr_T)MAXLNUM, - &ea, READ_NEW | READ_DUMMY) == OK) { - /* compare the two files line by line */ + (linenr_T)0, (linenr_T)0, (linenr_T)MAXLNUM, + &ea, READ_NEW | READ_DUMMY) == OK) { + // compare the two files line by line if (buf->b_ml.ml_line_count == curbuf->b_ml.ml_line_count) { - differ = FALSE; - for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum) - if (STRCMP(ml_get_buf(buf, lnum, FALSE), ml_get(lnum)) != 0) { - differ = TRUE; + differ = false; + for (linenr_T lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum) { + if (STRCMP(ml_get_buf(buf, lnum, false), ml_get(lnum)) != 0) { + differ = true; break; } + } } } xfree(ea.cmd); - /* restore curwin/curbuf and a few other things */ + // restore curwin/curbuf and a few other things aucmd_restbuf(&aco); - if (curbuf != newbuf) /* safety check */ - wipe_buffer(newbuf, FALSE); + if (curbuf != newbuf) { // safety check + wipe_buffer(newbuf, false); + } return differ; } |