Mercurial > vim
view src/misc1.c @ 15897:d73e7b92332d
Added tag v8.1.0954 for changeset ac080f6a4db83ced907f56ea14e98c646bca3625
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Tue, 19 Feb 2019 21:45:08 +0100 |
| parents | 7fad90423bd2 |
| children | c94b46f98b1a |
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/* vi:set ts=8 sts=4 sw=4 noet: * * VIM - Vi IMproved by Bram Moolenaar * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. * See README.txt for an overview of the Vim source code. */ /* * misc1.c: functions that didn't seem to fit elsewhere */ #include "vim.h" #include "version.h" #if defined(FEAT_CMDL_COMPL) && defined(MSWIN) # include <lm.h> #endif static char_u *vim_version_dir(char_u *vimdir); static char_u *remove_tail(char_u *p, char_u *pend, char_u *name); #define URL_SLASH 1 /* path_is_url() has found "://" */ #define URL_BACKSLASH 2 /* path_is_url() has found ":\\" */ /* All user names (for ~user completion as done by shell). */ #if defined(FEAT_CMDL_COMPL) || defined(PROTO) static garray_T ga_users; #endif /* * Count the size (in window cells) of the indent in the current line. */ int get_indent(void) { #ifdef FEAT_VARTABS return get_indent_str_vtab(ml_get_curline(), (int)curbuf->b_p_ts, curbuf->b_p_vts_array, FALSE); #else return get_indent_str(ml_get_curline(), (int)curbuf->b_p_ts, FALSE); #endif } /* * Count the size (in window cells) of the indent in line "lnum". */ int get_indent_lnum(linenr_T lnum) { #ifdef FEAT_VARTABS return get_indent_str_vtab(ml_get(lnum), (int)curbuf->b_p_ts, curbuf->b_p_vts_array, FALSE); #else return get_indent_str(ml_get(lnum), (int)curbuf->b_p_ts, FALSE); #endif } #if defined(FEAT_FOLDING) || defined(PROTO) /* * Count the size (in window cells) of the indent in line "lnum" of buffer * "buf". */ int get_indent_buf(buf_T *buf, linenr_T lnum) { #ifdef FEAT_VARTABS return get_indent_str_vtab(ml_get_buf(buf, lnum, FALSE), (int)curbuf->b_p_ts, buf->b_p_vts_array, FALSE); #else return get_indent_str(ml_get_buf(buf, lnum, FALSE), (int)buf->b_p_ts, FALSE); #endif } #endif /* * count the size (in window cells) of the indent in line "ptr", with * 'tabstop' at "ts" */ int get_indent_str( char_u *ptr, int ts, int list) /* if TRUE, count only screen size for tabs */ { int count = 0; for ( ; *ptr; ++ptr) { if (*ptr == TAB) { if (!list || lcs_tab1) /* count a tab for what it is worth */ count += ts - (count % ts); else /* In list mode, when tab is not set, count screen char width * for Tab, displays: ^I */ count += ptr2cells(ptr); } else if (*ptr == ' ') ++count; /* count a space for one */ else break; } return count; } #ifdef FEAT_VARTABS /* * Count the size (in window cells) of the indent in line "ptr", using * variable tabstops. * if "list" is TRUE, count only screen size for tabs. */ int get_indent_str_vtab(char_u *ptr, int ts, int *vts, int list) { int count = 0; for ( ; *ptr; ++ptr) { if (*ptr == TAB) /* count a tab for what it is worth */ { if (!list || lcs_tab1) count += tabstop_padding(count, ts, vts); else /* In list mode, when tab is not set, count screen char width * for Tab, displays: ^I */ count += ptr2cells(ptr); } else if (*ptr == ' ') ++count; /* count a space for one */ else break; } return count; } #endif /* * Set the indent of the current line. * Leaves the cursor on the first non-blank in the line. * Caller must take care of undo. * "flags": * SIN_CHANGED: call changed_bytes() if the line was changed. * SIN_INSERT: insert the indent in front of the line. * SIN_UNDO: save line for undo before changing it. * Returns TRUE if the line was changed. */ int set_indent( int size, /* measured in spaces */ int flags) { char_u *p; char_u *newline; char_u *oldline; char_u *s; int todo; int ind_len; /* measured in characters */ int line_len; int doit = FALSE; int ind_done = 0; /* measured in spaces */ #ifdef FEAT_VARTABS int ind_col = 0; #endif int tab_pad; int retval = FALSE; int orig_char_len = -1; /* number of initial whitespace chars when 'et' and 'pi' are both set */ /* * First check if there is anything to do and compute the number of * characters needed for the indent. */ todo = size; ind_len = 0; p = oldline = ml_get_curline(); /* Calculate the buffer size for the new indent, and check to see if it * isn't already set */ /* if 'expandtab' isn't set: use TABs; if both 'expandtab' and * 'preserveindent' are set count the number of characters at the * beginning of the line to be copied */ if (!curbuf->b_p_et || (!(flags & SIN_INSERT) && curbuf->b_p_pi)) { /* If 'preserveindent' is set then reuse as much as possible of * the existing indent structure for the new indent */ if (!(flags & SIN_INSERT) && curbuf->b_p_pi) { ind_done = 0; /* count as many characters as we can use */ while (todo > 0 && VIM_ISWHITE(*p)) { if (*p == TAB) { #ifdef FEAT_VARTABS tab_pad = tabstop_padding(ind_done, curbuf->b_p_ts, curbuf->b_p_vts_array); #else tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts); #endif /* stop if this tab will overshoot the target */ if (todo < tab_pad) break; todo -= tab_pad; ++ind_len; ind_done += tab_pad; } else { --todo; ++ind_len; ++ind_done; } ++p; } #ifdef FEAT_VARTABS /* These diverge from this point. */ ind_col = ind_done; #endif /* Set initial number of whitespace chars to copy if we are * preserving indent but expandtab is set */ if (curbuf->b_p_et) orig_char_len = ind_len; /* Fill to next tabstop with a tab, if possible */ #ifdef FEAT_VARTABS tab_pad = tabstop_padding(ind_done, curbuf->b_p_ts, curbuf->b_p_vts_array); #else tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts); #endif if (todo >= tab_pad && orig_char_len == -1) { doit = TRUE; todo -= tab_pad; ++ind_len; /* ind_done += tab_pad; */ #ifdef FEAT_VARTABS ind_col += tab_pad; #endif } } /* count tabs required for indent */ #ifdef FEAT_VARTABS for (;;) { tab_pad = tabstop_padding(ind_col, curbuf->b_p_ts, curbuf->b_p_vts_array); if (todo < tab_pad) break; if (*p != TAB) doit = TRUE; else ++p; todo -= tab_pad; ++ind_len; ind_col += tab_pad; } #else while (todo >= (int)curbuf->b_p_ts) { if (*p != TAB) doit = TRUE; else ++p; todo -= (int)curbuf->b_p_ts; ++ind_len; /* ind_done += (int)curbuf->b_p_ts; */ } #endif } /* count spaces required for indent */ while (todo > 0) { if (*p != ' ') doit = TRUE; else ++p; --todo; ++ind_len; /* ++ind_done; */ } /* Return if the indent is OK already. */ if (!doit && !VIM_ISWHITE(*p) && !(flags & SIN_INSERT)) return FALSE; /* Allocate memory for the new line. */ if (flags & SIN_INSERT) p = oldline; else p = skipwhite(p); line_len = (int)STRLEN(p) + 1; /* If 'preserveindent' and 'expandtab' are both set keep the original * characters and allocate accordingly. We will fill the rest with spaces * after the if (!curbuf->b_p_et) below. */ if (orig_char_len != -1) { newline = alloc(orig_char_len + size - ind_done + line_len); if (newline == NULL) return FALSE; todo = size - ind_done; ind_len = orig_char_len + todo; /* Set total length of indent in * characters, which may have been * undercounted until now */ p = oldline; s = newline; while (orig_char_len > 0) { *s++ = *p++; orig_char_len--; } /* Skip over any additional white space (useful when newindent is less * than old) */ while (VIM_ISWHITE(*p)) ++p; } else { todo = size; newline = alloc(ind_len + line_len); if (newline == NULL) return FALSE; s = newline; } /* Put the characters in the new line. */ /* if 'expandtab' isn't set: use TABs */ if (!curbuf->b_p_et) { /* If 'preserveindent' is set then reuse as much as possible of * the existing indent structure for the new indent */ if (!(flags & SIN_INSERT) && curbuf->b_p_pi) { p = oldline; ind_done = 0; while (todo > 0 && VIM_ISWHITE(*p)) { if (*p == TAB) { #ifdef FEAT_VARTABS tab_pad = tabstop_padding(ind_done, curbuf->b_p_ts, curbuf->b_p_vts_array); #else tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts); #endif /* stop if this tab will overshoot the target */ if (todo < tab_pad) break; todo -= tab_pad; ind_done += tab_pad; } else { --todo; ++ind_done; } *s++ = *p++; } /* Fill to next tabstop with a tab, if possible */ #ifdef FEAT_VARTABS tab_pad = tabstop_padding(ind_done, curbuf->b_p_ts, curbuf->b_p_vts_array); #else tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts); #endif if (todo >= tab_pad) { *s++ = TAB; todo -= tab_pad; #ifdef FEAT_VARTABS ind_done += tab_pad; #endif } p = skipwhite(p); } #ifdef FEAT_VARTABS for (;;) { tab_pad = tabstop_padding(ind_done, curbuf->b_p_ts, curbuf->b_p_vts_array); if (todo < tab_pad) break; *s++ = TAB; todo -= tab_pad; ind_done += tab_pad; } #else while (todo >= (int)curbuf->b_p_ts) { *s++ = TAB; todo -= (int)curbuf->b_p_ts; } #endif } while (todo > 0) { *s++ = ' '; --todo; } mch_memmove(s, p, (size_t)line_len); // Replace the line (unless undo fails). if (!(flags & SIN_UNDO) || u_savesub(curwin->w_cursor.lnum) == OK) { ml_replace(curwin->w_cursor.lnum, newline, FALSE); if (flags & SIN_CHANGED) changed_bytes(curwin->w_cursor.lnum, 0); // Correct saved cursor position if it is in this line. if (saved_cursor.lnum == curwin->w_cursor.lnum) { if (saved_cursor.col >= (colnr_T)(p - oldline)) // cursor was after the indent, adjust for the number of // bytes added/removed saved_cursor.col += ind_len - (colnr_T)(p - oldline); else if (saved_cursor.col >= (colnr_T)(s - newline)) // cursor was in the indent, and is now after it, put it back // at the start of the indent (replacing spaces with TAB) saved_cursor.col = (colnr_T)(s - newline); } #ifdef FEAT_TEXT_PROP adjust_prop_columns(curwin->w_cursor.lnum, (colnr_T)(p - oldline), ind_len - (colnr_T)(p - oldline)); #endif retval = TRUE; } else vim_free(newline); curwin->w_cursor.col = ind_len; return retval; } /* * Copy the indent from ptr to the current line (and fill to size) * Leaves the cursor on the first non-blank in the line. * Returns TRUE if the line was changed. */ static int copy_indent(int size, char_u *src) { char_u *p = NULL; char_u *line = NULL; char_u *s; int todo; int ind_len; int line_len = 0; int tab_pad; int ind_done; int round; #ifdef FEAT_VARTABS int ind_col; #endif /* Round 1: compute the number of characters needed for the indent * Round 2: copy the characters. */ for (round = 1; round <= 2; ++round) { todo = size; ind_len = 0; ind_done = 0; #ifdef FEAT_VARTABS ind_col = 0; #endif s = src; /* Count/copy the usable portion of the source line */ while (todo > 0 && VIM_ISWHITE(*s)) { if (*s == TAB) { #ifdef FEAT_VARTABS tab_pad = tabstop_padding(ind_done, curbuf->b_p_ts, curbuf->b_p_vts_array); #else tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts); #endif /* Stop if this tab will overshoot the target */ if (todo < tab_pad) break; todo -= tab_pad; ind_done += tab_pad; #ifdef FEAT_VARTABS ind_col += tab_pad; #endif } else { --todo; ++ind_done; #ifdef FEAT_VARTABS ++ind_col; #endif } ++ind_len; if (p != NULL) *p++ = *s; ++s; } /* Fill to next tabstop with a tab, if possible */ #ifdef FEAT_VARTABS tab_pad = tabstop_padding(ind_done, curbuf->b_p_ts, curbuf->b_p_vts_array); #else tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts); #endif if (todo >= tab_pad && !curbuf->b_p_et) { todo -= tab_pad; ++ind_len; #ifdef FEAT_VARTABS ind_col += tab_pad; #endif if (p != NULL) *p++ = TAB; } /* Add tabs required for indent */ if (!curbuf->b_p_et) { #ifdef FEAT_VARTABS for (;;) { tab_pad = tabstop_padding(ind_col, curbuf->b_p_ts, curbuf->b_p_vts_array); if (todo < tab_pad) break; todo -= tab_pad; ++ind_len; ind_col += tab_pad; if (p != NULL) *p++ = TAB; } #else while (todo >= (int)curbuf->b_p_ts) { todo -= (int)curbuf->b_p_ts; ++ind_len; if (p != NULL) *p++ = TAB; } #endif } /* Count/add spaces required for indent */ while (todo > 0) { --todo; ++ind_len; if (p != NULL) *p++ = ' '; } if (p == NULL) { /* Allocate memory for the result: the copied indent, new indent * and the rest of the line. */ line_len = (int)STRLEN(ml_get_curline()) + 1; line = alloc(ind_len + line_len); if (line == NULL) return FALSE; p = line; } } /* Append the original line */ mch_memmove(p, ml_get_curline(), (size_t)line_len); /* Replace the line */ ml_replace(curwin->w_cursor.lnum, line, FALSE); /* Put the cursor after the indent. */ curwin->w_cursor.col = ind_len; return TRUE; } /* * Return the indent of the current line after a number. Return -1 if no * number was found. Used for 'n' in 'formatoptions': numbered list. * Since a pattern is used it can actually handle more than numbers. */ int get_number_indent(linenr_T lnum) { colnr_T col; pos_T pos; regmatch_T regmatch; int lead_len = 0; /* length of comment leader */ if (lnum > curbuf->b_ml.ml_line_count) return -1; pos.lnum = 0; #ifdef FEAT_COMMENTS /* In format_lines() (i.e. not insert mode), fo+=q is needed too... */ if ((State & INSERT) || has_format_option(FO_Q_COMS)) lead_len = get_leader_len(ml_get(lnum), NULL, FALSE, TRUE); #endif regmatch.regprog = vim_regcomp(curbuf->b_p_flp, RE_MAGIC); if (regmatch.regprog != NULL) { regmatch.rm_ic = FALSE; /* vim_regexec() expects a pointer to a line. This lets us * start matching for the flp beyond any comment leader... */ if (vim_regexec(®match, ml_get(lnum) + lead_len, (colnr_T)0)) { pos.lnum = lnum; pos.col = (colnr_T)(*regmatch.endp - ml_get(lnum)); pos.coladd = 0; } vim_regfree(regmatch.regprog); } if (pos.lnum == 0 || *ml_get_pos(&pos) == NUL) return -1; getvcol(curwin, &pos, &col, NULL, NULL); return (int)col; } #if defined(FEAT_LINEBREAK) || defined(PROTO) /* * Return appropriate space number for breakindent, taking influencing * parameters into account. Window must be specified, since it is not * necessarily always the current one. */ int get_breakindent_win( win_T *wp, char_u *line) /* start of the line */ { static int prev_indent = 0; /* cached indent value */ static long prev_ts = 0L; /* cached tabstop value */ static char_u *prev_line = NULL; /* cached pointer to line */ static varnumber_T prev_tick = 0; /* changedtick of cached value */ #ifdef FEAT_VARTABS static int *prev_vts = NULL; /* cached vartabs values */ #endif int bri = 0; /* window width minus window margin space, i.e. what rests for text */ const int eff_wwidth = wp->w_width - ((wp->w_p_nu || wp->w_p_rnu) && (vim_strchr(p_cpo, CPO_NUMCOL) == NULL) ? number_width(wp) + 1 : 0); /* used cached indent, unless pointer or 'tabstop' changed */ if (prev_line != line || prev_ts != wp->w_buffer->b_p_ts || prev_tick != CHANGEDTICK(wp->w_buffer) #ifdef FEAT_VARTABS || prev_vts != wp->w_buffer->b_p_vts_array #endif ) { prev_line = line; prev_ts = wp->w_buffer->b_p_ts; prev_tick = CHANGEDTICK(wp->w_buffer); #ifdef FEAT_VARTABS prev_vts = wp->w_buffer->b_p_vts_array; prev_indent = get_indent_str_vtab(line, (int)wp->w_buffer->b_p_ts, wp->w_buffer->b_p_vts_array, wp->w_p_list); #else prev_indent = get_indent_str(line, (int)wp->w_buffer->b_p_ts, wp->w_p_list); #endif } bri = prev_indent + wp->w_p_brishift; /* indent minus the length of the showbreak string */ if (wp->w_p_brisbr) bri -= vim_strsize(p_sbr); /* Add offset for number column, if 'n' is in 'cpoptions' */ bri += win_col_off2(wp); /* never indent past left window margin */ if (bri < 0) bri = 0; /* always leave at least bri_min characters on the left, * if text width is sufficient */ else if (bri > eff_wwidth - wp->w_p_brimin) bri = (eff_wwidth - wp->w_p_brimin < 0) ? 0 : eff_wwidth - wp->w_p_brimin; return bri; } #endif /* * open_line: Add a new line below or above the current line. * * For VREPLACE mode, we only add a new line when we get to the end of the * file, otherwise we just start replacing the next line. * * Caller must take care of undo. Since VREPLACE may affect any number of * lines however, it may call u_save_cursor() again when starting to change a * new line. * "flags": OPENLINE_DELSPACES delete spaces after cursor * OPENLINE_DO_COM format comments * OPENLINE_KEEPTRAIL keep trailing spaces * OPENLINE_MARKFIX adjust mark positions after the line break * OPENLINE_COM_LIST format comments with list or 2nd line indent * * "second_line_indent": indent for after ^^D in Insert mode or if flag * OPENLINE_COM_LIST * * Return OK for success, FAIL for failure */ int open_line( int dir, /* FORWARD or BACKWARD */ int flags, int second_line_indent) { char_u *saved_line; /* copy of the original line */ char_u *next_line = NULL; /* copy of the next line */ char_u *p_extra = NULL; /* what goes to next line */ int less_cols = 0; /* less columns for mark in new line */ int less_cols_off = 0; /* columns to skip for mark adjust */ pos_T old_cursor; /* old cursor position */ int newcol = 0; /* new cursor column */ int newindent = 0; /* auto-indent of the new line */ int n; int trunc_line = FALSE; /* truncate current line afterwards */ int retval = FAIL; /* return value */ #ifdef FEAT_COMMENTS int extra_len = 0; /* length of p_extra string */ int lead_len; /* length of comment leader */ char_u *lead_flags; /* position in 'comments' for comment leader */ char_u *leader = NULL; /* copy of comment leader */ #endif char_u *allocated = NULL; /* allocated memory */ char_u *p; int saved_char = NUL; /* init for GCC */ #if defined(FEAT_SMARTINDENT) || defined(FEAT_COMMENTS) pos_T *pos; #endif #ifdef FEAT_SMARTINDENT int do_si = (!p_paste && curbuf->b_p_si # ifdef FEAT_CINDENT && !curbuf->b_p_cin # endif # ifdef FEAT_EVAL && *curbuf->b_p_inde == NUL # endif ); int no_si = FALSE; /* reset did_si afterwards */ int first_char = NUL; /* init for GCC */ #endif #if defined(FEAT_LISP) || defined(FEAT_CINDENT) int vreplace_mode; #endif int did_append; /* appended a new line */ int saved_pi = curbuf->b_p_pi; /* copy of preserveindent setting */ /* * make a copy of the current line so we can mess with it */ saved_line = vim_strsave(ml_get_curline()); if (saved_line == NULL) /* out of memory! */ return FALSE; if (State & VREPLACE_FLAG) { /* * With VREPLACE we make a copy of the next line, which we will be * starting to replace. First make the new line empty and let vim play * with the indenting and comment leader to its heart's content. Then * we grab what it ended up putting on the new line, put back the * original line, and call ins_char() to put each new character onto * the line, replacing what was there before and pushing the right * stuff onto the replace stack. -- webb. */ if (curwin->w_cursor.lnum < orig_line_count) next_line = vim_strsave(ml_get(curwin->w_cursor.lnum + 1)); else next_line = vim_strsave((char_u *)""); if (next_line == NULL) /* out of memory! */ goto theend; /* * In VREPLACE mode, a NL replaces the rest of the line, and starts * replacing the next line, so push all of the characters left on the * line onto the replace stack. We'll push any other characters that * might be replaced at the start of the next line (due to autoindent * etc) a bit later. */ replace_push(NUL); /* Call twice because BS over NL expects it */ replace_push(NUL); p = saved_line + curwin->w_cursor.col; while (*p != NUL) { if (has_mbyte) p += replace_push_mb(p); else replace_push(*p++); } saved_line[curwin->w_cursor.col] = NUL; } if ((State & INSERT) && !(State & VREPLACE_FLAG)) { p_extra = saved_line + curwin->w_cursor.col; #ifdef FEAT_SMARTINDENT if (do_si) /* need first char after new line break */ { p = skipwhite(p_extra); first_char = *p; } #endif #ifdef FEAT_COMMENTS extra_len = (int)STRLEN(p_extra); #endif saved_char = *p_extra; *p_extra = NUL; } u_clearline(); /* cannot do "U" command when adding lines */ #ifdef FEAT_SMARTINDENT did_si = FALSE; #endif ai_col = 0; /* * If we just did an auto-indent, then we didn't type anything on * the prior line, and it should be truncated. Do this even if 'ai' is not * set because automatically inserting a comment leader also sets did_ai. */ if (dir == FORWARD && did_ai) trunc_line = TRUE; /* * If 'autoindent' and/or 'smartindent' is set, try to figure out what * indent to use for the new line. */ if (curbuf->b_p_ai #ifdef FEAT_SMARTINDENT || do_si #endif ) { /* * count white space on current line */ #ifdef FEAT_VARTABS newindent = get_indent_str_vtab(saved_line, curbuf->b_p_ts, curbuf->b_p_vts_array, FALSE); #else newindent = get_indent_str(saved_line, (int)curbuf->b_p_ts, FALSE); #endif if (newindent == 0 && !(flags & OPENLINE_COM_LIST)) newindent = second_line_indent; /* for ^^D command in insert mode */ #ifdef FEAT_SMARTINDENT /* * Do smart indenting. * In insert/replace mode (only when dir == FORWARD) * we may move some text to the next line. If it starts with '{' * don't add an indent. Fixes inserting a NL before '{' in line * "if (condition) {" */ if (!trunc_line && do_si && *saved_line != NUL && (p_extra == NULL || first_char != '{')) { char_u *ptr; char_u last_char; old_cursor = curwin->w_cursor; ptr = saved_line; # ifdef FEAT_COMMENTS if (flags & OPENLINE_DO_COM) lead_len = get_leader_len(ptr, NULL, FALSE, TRUE); else lead_len = 0; # endif if (dir == FORWARD) { /* * Skip preprocessor directives, unless they are * recognised as comments. */ if ( # ifdef FEAT_COMMENTS lead_len == 0 && # endif ptr[0] == '#') { while (ptr[0] == '#' && curwin->w_cursor.lnum > 1) ptr = ml_get(--curwin->w_cursor.lnum); newindent = get_indent(); } # ifdef FEAT_COMMENTS if (flags & OPENLINE_DO_COM) lead_len = get_leader_len(ptr, NULL, FALSE, TRUE); else lead_len = 0; if (lead_len > 0) { /* * This case gets the following right: * \* * * A comment (read '\' as '/'). * *\ * #define IN_THE_WAY * This should line up here; */ p = skipwhite(ptr); if (p[0] == '/' && p[1] == '*') p++; if (p[0] == '*') { for (p++; *p; p++) { if (p[0] == '/' && p[-1] == '*') { /* * End of C comment, indent should line up * with the line containing the start of * the comment */ curwin->w_cursor.col = (colnr_T)(p - ptr); if ((pos = findmatch(NULL, NUL)) != NULL) { curwin->w_cursor.lnum = pos->lnum; newindent = get_indent(); } } } } } else /* Not a comment line */ # endif { /* Find last non-blank in line */ p = ptr + STRLEN(ptr) - 1; while (p > ptr && VIM_ISWHITE(*p)) --p; last_char = *p; /* * find the character just before the '{' or ';' */ if (last_char == '{' || last_char == ';') { if (p > ptr) --p; while (p > ptr && VIM_ISWHITE(*p)) --p; } /* * Try to catch lines that are split over multiple * lines. eg: * if (condition && * condition) { * Should line up here! * } */ if (*p == ')') { curwin->w_cursor.col = (colnr_T)(p - ptr); if ((pos = findmatch(NULL, '(')) != NULL) { curwin->w_cursor.lnum = pos->lnum; newindent = get_indent(); ptr = ml_get_curline(); } } /* * If last character is '{' do indent, without * checking for "if" and the like. */ if (last_char == '{') { did_si = TRUE; /* do indent */ no_si = TRUE; /* don't delete it when '{' typed */ } /* * Look for "if" and the like, use 'cinwords'. * Don't do this if the previous line ended in ';' or * '}'. */ else if (last_char != ';' && last_char != '}' && cin_is_cinword(ptr)) did_si = TRUE; } } else /* dir == BACKWARD */ { /* * Skip preprocessor directives, unless they are * recognised as comments. */ if ( # ifdef FEAT_COMMENTS lead_len == 0 && # endif ptr[0] == '#') { int was_backslashed = FALSE; while ((ptr[0] == '#' || was_backslashed) && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) { if (*ptr && ptr[STRLEN(ptr) - 1] == '\\') was_backslashed = TRUE; else was_backslashed = FALSE; ptr = ml_get(++curwin->w_cursor.lnum); } if (was_backslashed) newindent = 0; /* Got to end of file */ else newindent = get_indent(); } p = skipwhite(ptr); if (*p == '}') /* if line starts with '}': do indent */ did_si = TRUE; else /* can delete indent when '{' typed */ can_si_back = TRUE; } curwin->w_cursor = old_cursor; } if (do_si) can_si = TRUE; #endif /* FEAT_SMARTINDENT */ did_ai = TRUE; } #ifdef FEAT_COMMENTS /* * Find out if the current line starts with a comment leader. * This may then be inserted in front of the new line. */ end_comment_pending = NUL; if (flags & OPENLINE_DO_COM) lead_len = get_leader_len(saved_line, &lead_flags, dir == BACKWARD, TRUE); else lead_len = 0; if (lead_len > 0) { char_u *lead_repl = NULL; /* replaces comment leader */ int lead_repl_len = 0; /* length of *lead_repl */ char_u lead_middle[COM_MAX_LEN]; /* middle-comment string */ char_u lead_end[COM_MAX_LEN]; /* end-comment string */ char_u *comment_end = NULL; /* where lead_end has been found */ int extra_space = FALSE; /* append extra space */ int current_flag; int require_blank = FALSE; /* requires blank after middle */ char_u *p2; /* * If the comment leader has the start, middle or end flag, it may not * be used or may be replaced with the middle leader. */ for (p = lead_flags; *p && *p != ':'; ++p) { if (*p == COM_BLANK) { require_blank = TRUE; continue; } if (*p == COM_START || *p == COM_MIDDLE) { current_flag = *p; if (*p == COM_START) { /* * Doing "O" on a start of comment does not insert leader. */ if (dir == BACKWARD) { lead_len = 0; break; } /* find start of middle part */ (void)copy_option_part(&p, lead_middle, COM_MAX_LEN, ","); require_blank = FALSE; } /* * Isolate the strings of the middle and end leader. */ while (*p && p[-1] != ':') /* find end of middle flags */ { if (*p == COM_BLANK) require_blank = TRUE; ++p; } (void)copy_option_part(&p, lead_middle, COM_MAX_LEN, ","); while (*p && p[-1] != ':') /* find end of end flags */ { /* Check whether we allow automatic ending of comments */ if (*p == COM_AUTO_END) end_comment_pending = -1; /* means we want to set it */ ++p; } n = copy_option_part(&p, lead_end, COM_MAX_LEN, ","); if (end_comment_pending == -1) /* we can set it now */ end_comment_pending = lead_end[n - 1]; /* * If the end of the comment is in the same line, don't use * the comment leader. */ if (dir == FORWARD) { for (p = saved_line + lead_len; *p; ++p) if (STRNCMP(p, lead_end, n) == 0) { comment_end = p; lead_len = 0; break; } } /* * Doing "o" on a start of comment inserts the middle leader. */ if (lead_len > 0) { if (current_flag == COM_START) { lead_repl = lead_middle; lead_repl_len = (int)STRLEN(lead_middle); } /* * If we have hit RETURN immediately after the start * comment leader, then put a space after the middle * comment leader on the next line. */ if (!VIM_ISWHITE(saved_line[lead_len - 1]) && ((p_extra != NULL && (int)curwin->w_cursor.col == lead_len) || (p_extra == NULL && saved_line[lead_len] == NUL) || require_blank)) extra_space = TRUE; } break; } if (*p == COM_END) { /* * Doing "o" on the end of a comment does not insert leader. * Remember where the end is, might want to use it to find the * start (for C-comments). */ if (dir == FORWARD) { comment_end = skipwhite(saved_line); lead_len = 0; break; } /* * Doing "O" on the end of a comment inserts the middle leader. * Find the string for the middle leader, searching backwards. */ while (p > curbuf->b_p_com && *p != ',') --p; for (lead_repl = p; lead_repl > curbuf->b_p_com && lead_repl[-1] != ':'; --lead_repl) ; lead_repl_len = (int)(p - lead_repl); /* We can probably always add an extra space when doing "O" on * the comment-end */ extra_space = TRUE; /* Check whether we allow automatic ending of comments */ for (p2 = p; *p2 && *p2 != ':'; p2++) { if (*p2 == COM_AUTO_END) end_comment_pending = -1; /* means we want to set it */ } if (end_comment_pending == -1) { /* Find last character in end-comment string */ while (*p2 && *p2 != ',') p2++; end_comment_pending = p2[-1]; } break; } if (*p == COM_FIRST) { /* * Comment leader for first line only: Don't repeat leader * when using "O", blank out leader when using "o". */ if (dir == BACKWARD) lead_len = 0; else { lead_repl = (char_u *)""; lead_repl_len = 0; } break; } } if (lead_len) { /* allocate buffer (may concatenate p_extra later) */ leader = alloc(lead_len + lead_repl_len + extra_space + extra_len + (second_line_indent > 0 ? second_line_indent : 0) + 1); allocated = leader; /* remember to free it later */ if (leader == NULL) lead_len = 0; else { vim_strncpy(leader, saved_line, lead_len); /* * Replace leader with lead_repl, right or left adjusted */ if (lead_repl != NULL) { int c = 0; int off = 0; for (p = lead_flags; *p != NUL && *p != ':'; ) { if (*p == COM_RIGHT || *p == COM_LEFT) c = *p++; else if (VIM_ISDIGIT(*p) || *p == '-') off = getdigits(&p); else ++p; } if (c == COM_RIGHT) /* right adjusted leader */ { /* find last non-white in the leader to line up with */ for (p = leader + lead_len - 1; p > leader && VIM_ISWHITE(*p); --p) ; ++p; /* Compute the length of the replaced characters in * screen characters, not bytes. */ { int repl_size = vim_strnsize(lead_repl, lead_repl_len); int old_size = 0; char_u *endp = p; int l; while (old_size < repl_size && p > leader) { MB_PTR_BACK(leader, p); old_size += ptr2cells(p); } l = lead_repl_len - (int)(endp - p); if (l != 0) mch_memmove(endp + l, endp, (size_t)((leader + lead_len) - endp)); lead_len += l; } mch_memmove(p, lead_repl, (size_t)lead_repl_len); if (p + lead_repl_len > leader + lead_len) p[lead_repl_len] = NUL; /* blank-out any other chars from the old leader. */ while (--p >= leader) { int l = mb_head_off(leader, p); if (l > 1) { p -= l; if (ptr2cells(p) > 1) { p[1] = ' '; --l; } mch_memmove(p + 1, p + l + 1, (size_t)((leader + lead_len) - (p + l + 1))); lead_len -= l; *p = ' '; } else if (!VIM_ISWHITE(*p)) *p = ' '; } } else /* left adjusted leader */ { p = skipwhite(leader); /* Compute the length of the replaced characters in * screen characters, not bytes. Move the part that is * not to be overwritten. */ { int repl_size = vim_strnsize(lead_repl, lead_repl_len); int i; int l; for (i = 0; i < lead_len && p[i] != NUL; i += l) { l = (*mb_ptr2len)(p + i); if (vim_strnsize(p, i + l) > repl_size) break; } if (i != lead_repl_len) { mch_memmove(p + lead_repl_len, p + i, (size_t)(lead_len - i - (p - leader))); lead_len += lead_repl_len - i; } } mch_memmove(p, lead_repl, (size_t)lead_repl_len); /* Replace any remaining non-white chars in the old * leader by spaces. Keep Tabs, the indent must * remain the same. */ for (p += lead_repl_len; p < leader + lead_len; ++p) if (!VIM_ISWHITE(*p)) { /* Don't put a space before a TAB. */ if (p + 1 < leader + lead_len && p[1] == TAB) { --lead_len; mch_memmove(p, p + 1, (leader + lead_len) - p); } else { int l = (*mb_ptr2len)(p); if (l > 1) { if (ptr2cells(p) > 1) { /* Replace a double-wide char with * two spaces */ --l; *p++ = ' '; } mch_memmove(p + 1, p + l, (leader + lead_len) - p); lead_len -= l - 1; } *p = ' '; } } *p = NUL; } /* Recompute the indent, it may have changed. */ if (curbuf->b_p_ai #ifdef FEAT_SMARTINDENT || do_si #endif ) #ifdef FEAT_VARTABS newindent = get_indent_str_vtab(leader, curbuf->b_p_ts, curbuf->b_p_vts_array, FALSE); #else newindent = get_indent_str(leader, (int)curbuf->b_p_ts, FALSE); #endif /* Add the indent offset */ if (newindent + off < 0) { off = -newindent; newindent = 0; } else newindent += off; /* Correct trailing spaces for the shift, so that * alignment remains equal. */ while (off > 0 && lead_len > 0 && leader[lead_len - 1] == ' ') { /* Don't do it when there is a tab before the space */ if (vim_strchr(skipwhite(leader), '\t') != NULL) break; --lead_len; --off; } /* If the leader ends in white space, don't add an * extra space */ if (lead_len > 0 && VIM_ISWHITE(leader[lead_len - 1])) extra_space = FALSE; leader[lead_len] = NUL; } if (extra_space) { leader[lead_len++] = ' '; leader[lead_len] = NUL; } newcol = lead_len; /* * if a new indent will be set below, remove the indent that * is in the comment leader */ if (newindent #ifdef FEAT_SMARTINDENT || did_si #endif ) { while (lead_len && VIM_ISWHITE(*leader)) { --lead_len; --newcol; ++leader; } } } #ifdef FEAT_SMARTINDENT did_si = can_si = FALSE; #endif } else if (comment_end != NULL) { /* * We have finished a comment, so we don't use the leader. * If this was a C-comment and 'ai' or 'si' is set do a normal * indent to align with the line containing the start of the * comment. */ if (comment_end[0] == '*' && comment_end[1] == '/' && (curbuf->b_p_ai #ifdef FEAT_SMARTINDENT || do_si #endif )) { old_cursor = curwin->w_cursor; curwin->w_cursor.col = (colnr_T)(comment_end - saved_line); if ((pos = findmatch(NULL, NUL)) != NULL) { curwin->w_cursor.lnum = pos->lnum; newindent = get_indent(); } curwin->w_cursor = old_cursor; } } } #endif /* (State == INSERT || State == REPLACE), only when dir == FORWARD */ if (p_extra != NULL) { *p_extra = saved_char; /* restore char that NUL replaced */ /* * When 'ai' set or "flags" has OPENLINE_DELSPACES, skip to the first * non-blank. * * When in REPLACE mode, put the deleted blanks on the replace stack, * preceded by a NUL, so they can be put back when a BS is entered. */ if (REPLACE_NORMAL(State)) replace_push(NUL); /* end of extra blanks */ if (curbuf->b_p_ai || (flags & OPENLINE_DELSPACES)) { while ((*p_extra == ' ' || *p_extra == '\t') && (!enc_utf8 || !utf_iscomposing(utf_ptr2char(p_extra + 1)))) { if (REPLACE_NORMAL(State)) replace_push(*p_extra); ++p_extra; ++less_cols_off; } } if (*p_extra != NUL) did_ai = FALSE; /* append some text, don't truncate now */ /* columns for marks adjusted for removed columns */ less_cols = (int)(p_extra - saved_line); } if (p_extra == NULL) p_extra = (char_u *)""; /* append empty line */ #ifdef FEAT_COMMENTS /* concatenate leader and p_extra, if there is a leader */ if (lead_len) { if (flags & OPENLINE_COM_LIST && second_line_indent > 0) { int i; int padding = second_line_indent - (newindent + (int)STRLEN(leader)); /* Here whitespace is inserted after the comment char. * Below, set_indent(newindent, SIN_INSERT) will insert the * whitespace needed before the comment char. */ for (i = 0; i < padding; i++) { STRCAT(leader, " "); less_cols--; newcol++; } } STRCAT(leader, p_extra); p_extra = leader; did_ai = TRUE; /* So truncating blanks works with comments */ less_cols -= lead_len; } else end_comment_pending = NUL; /* turns out there was no leader */ #endif old_cursor = curwin->w_cursor; if (dir == BACKWARD) --curwin->w_cursor.lnum; if (!(State & VREPLACE_FLAG) || old_cursor.lnum >= orig_line_count) { if (ml_append(curwin->w_cursor.lnum, p_extra, (colnr_T)0, FALSE) == FAIL) goto theend; /* Postpone calling changed_lines(), because it would mess up folding * with markers. * Skip mark_adjust when adding a line after the last one, there can't * be marks there. But still needed in diff mode. */ if (curwin->w_cursor.lnum + 1 < curbuf->b_ml.ml_line_count #ifdef FEAT_DIFF || curwin->w_p_diff #endif ) mark_adjust(curwin->w_cursor.lnum + 1, (linenr_T)MAXLNUM, 1L, 0L); did_append = TRUE; } else { /* * In VREPLACE mode we are starting to replace the next line. */ curwin->w_cursor.lnum++; if (curwin->w_cursor.lnum >= Insstart.lnum + vr_lines_changed) { /* In case we NL to a new line, BS to the previous one, and NL * again, we don't want to save the new line for undo twice. */ (void)u_save_cursor(); /* errors are ignored! */ vr_lines_changed++; } ml_replace(curwin->w_cursor.lnum, p_extra, TRUE); changed_bytes(curwin->w_cursor.lnum, 0); curwin->w_cursor.lnum--; did_append = FALSE; } if (newindent #ifdef FEAT_SMARTINDENT || did_si #endif ) { ++curwin->w_cursor.lnum; #ifdef FEAT_SMARTINDENT if (did_si) { int sw = (int)get_sw_value(curbuf); if (p_sr) newindent -= newindent % sw; newindent += sw; } #endif /* Copy the indent */ if (curbuf->b_p_ci) { (void)copy_indent(newindent, saved_line); /* * Set the 'preserveindent' option so that any further screwing * with the line doesn't entirely destroy our efforts to preserve * it. It gets restored at the function end. */ curbuf->b_p_pi = TRUE; } else (void)set_indent(newindent, SIN_INSERT); less_cols -= curwin->w_cursor.col; ai_col = curwin->w_cursor.col; /* * In REPLACE mode, for each character in the new indent, there must * be a NUL on the replace stack, for when it is deleted with BS */ if (REPLACE_NORMAL(State)) for (n = 0; n < (int)curwin->w_cursor.col; ++n) replace_push(NUL); newcol += curwin->w_cursor.col; #ifdef FEAT_SMARTINDENT if (no_si) did_si = FALSE; #endif } #ifdef FEAT_COMMENTS /* * In REPLACE mode, for each character in the extra leader, there must be * a NUL on the replace stack, for when it is deleted with BS. */ if (REPLACE_NORMAL(State)) while (lead_len-- > 0) replace_push(NUL); #endif curwin->w_cursor = old_cursor; if (dir == FORWARD) { if (trunc_line || (State & INSERT)) { /* truncate current line at cursor */ saved_line[curwin->w_cursor.col] = NUL; /* Remove trailing white space, unless OPENLINE_KEEPTRAIL used. */ if (trunc_line && !(flags & OPENLINE_KEEPTRAIL)) truncate_spaces(saved_line); ml_replace(curwin->w_cursor.lnum, saved_line, FALSE); saved_line = NULL; if (did_append) { changed_lines(curwin->w_cursor.lnum, curwin->w_cursor.col, curwin->w_cursor.lnum + 1, 1L); did_append = FALSE; /* Move marks after the line break to the new line. */ if (flags & OPENLINE_MARKFIX) mark_col_adjust(curwin->w_cursor.lnum, curwin->w_cursor.col + less_cols_off, 1L, (long)-less_cols, 0); } else changed_bytes(curwin->w_cursor.lnum, curwin->w_cursor.col); } /* * Put the cursor on the new line. Careful: the scrollup() above may * have moved w_cursor, we must use old_cursor. */ curwin->w_cursor.lnum = old_cursor.lnum + 1; } if (did_append) changed_lines(curwin->w_cursor.lnum, 0, curwin->w_cursor.lnum, 1L); curwin->w_cursor.col = newcol; curwin->w_cursor.coladd = 0; #if defined(FEAT_LISP) || defined(FEAT_CINDENT) /* * In VREPLACE mode, we are handling the replace stack ourselves, so stop * fixthisline() from doing it (via change_indent()) by telling it we're in * normal INSERT mode. */ if (State & VREPLACE_FLAG) { vreplace_mode = State; /* So we know to put things right later */ State = INSERT; } else vreplace_mode = 0; #endif #ifdef FEAT_LISP /* * May do lisp indenting. */ if (!p_paste # ifdef FEAT_COMMENTS && leader == NULL # endif && curbuf->b_p_lisp && curbuf->b_p_ai) { fixthisline(get_lisp_indent); ai_col = (colnr_T)getwhitecols_curline(); } #endif #ifdef FEAT_CINDENT /* * May do indenting after opening a new line. */ if (!p_paste && (curbuf->b_p_cin # ifdef FEAT_EVAL || *curbuf->b_p_inde != NUL # endif ) && in_cinkeys(dir == FORWARD ? KEY_OPEN_FORW : KEY_OPEN_BACK, ' ', linewhite(curwin->w_cursor.lnum))) { do_c_expr_indent(); ai_col = (colnr_T)getwhitecols_curline(); } #endif #if defined(FEAT_LISP) || defined(FEAT_CINDENT) if (vreplace_mode != 0) State = vreplace_mode; #endif /* * Finally, VREPLACE gets the stuff on the new line, then puts back the * original line, and inserts the new stuff char by char, pushing old stuff * onto the replace stack (via ins_char()). */ if (State & VREPLACE_FLAG) { /* Put new line in p_extra */ p_extra = vim_strsave(ml_get_curline()); if (p_extra == NULL) goto theend; /* Put back original line */ ml_replace(curwin->w_cursor.lnum, next_line, FALSE); /* Insert new stuff into line again */ curwin->w_cursor.col = 0; curwin->w_cursor.coladd = 0; ins_bytes(p_extra); /* will call changed_bytes() */ vim_free(p_extra); next_line = NULL; } retval = OK; /* success! */ theend: curbuf->b_p_pi = saved_pi; vim_free(saved_line); vim_free(next_line); vim_free(allocated); return retval; } #if defined(FEAT_COMMENTS) || defined(PROTO) /* * get_leader_len() returns the length in bytes of the prefix of the given * string which introduces a comment. If this string is not a comment then * 0 is returned. * When "flags" is not NULL, it is set to point to the flags of the recognized * comment leader. * "backward" must be true for the "O" command. * If "include_space" is set, include trailing whitespace while calculating the * length. */ int get_leader_len( char_u *line, char_u **flags, int backward, int include_space) { int i, j; int result; int got_com = FALSE; int found_one; char_u part_buf[COM_MAX_LEN]; /* buffer for one option part */ char_u *string; /* pointer to comment string */ char_u *list; int middle_match_len = 0; char_u *prev_list; char_u *saved_flags = NULL; result = i = 0; while (VIM_ISWHITE(line[i])) /* leading white space is ignored */ ++i; /* * Repeat to match several nested comment strings. */ while (line[i] != NUL) { /* * scan through the 'comments' option for a match */ found_one = FALSE; for (list = curbuf->b_p_com; *list; ) { /* Get one option part into part_buf[]. Advance "list" to next * one. Put "string" at start of string. */ if (!got_com && flags != NULL) *flags = list; /* remember where flags started */ prev_list = list; (void)copy_option_part(&list, part_buf, COM_MAX_LEN, ","); string = vim_strchr(part_buf, ':'); if (string == NULL) /* missing ':', ignore this part */ continue; *string++ = NUL; /* isolate flags from string */ /* If we found a middle match previously, use that match when this * is not a middle or end. */ if (middle_match_len != 0 && vim_strchr(part_buf, COM_MIDDLE) == NULL && vim_strchr(part_buf, COM_END) == NULL) break; /* When we already found a nested comment, only accept further * nested comments. */ if (got_com && vim_strchr(part_buf, COM_NEST) == NULL) continue; /* When 'O' flag present and using "O" command skip this one. */ if (backward && vim_strchr(part_buf, COM_NOBACK) != NULL) continue; /* Line contents and string must match. * When string starts with white space, must have some white space * (but the amount does not need to match, there might be a mix of * TABs and spaces). */ if (VIM_ISWHITE(string[0])) { if (i == 0 || !VIM_ISWHITE(line[i - 1])) continue; /* missing white space */ while (VIM_ISWHITE(string[0])) ++string; } for (j = 0; string[j] != NUL && string[j] == line[i + j]; ++j) ; if (string[j] != NUL) continue; /* string doesn't match */ /* When 'b' flag used, there must be white space or an * end-of-line after the string in the line. */ if (vim_strchr(part_buf, COM_BLANK) != NULL && !VIM_ISWHITE(line[i + j]) && line[i + j] != NUL) continue; /* We have found a match, stop searching unless this is a middle * comment. The middle comment can be a substring of the end * comment in which case it's better to return the length of the * end comment and its flags. Thus we keep searching with middle * and end matches and use an end match if it matches better. */ if (vim_strchr(part_buf, COM_MIDDLE) != NULL) { if (middle_match_len == 0) { middle_match_len = j; saved_flags = prev_list; } continue; } if (middle_match_len != 0 && j > middle_match_len) /* Use this match instead of the middle match, since it's a * longer thus better match. */ middle_match_len = 0; if (middle_match_len == 0) i += j; found_one = TRUE; break; } if (middle_match_len != 0) { /* Use the previously found middle match after failing to find a * match with an end. */ if (!got_com && flags != NULL) *flags = saved_flags; i += middle_match_len; found_one = TRUE; } /* No match found, stop scanning. */ if (!found_one) break; result = i; /* Include any trailing white space. */ while (VIM_ISWHITE(line[i])) ++i; if (include_space) result = i; /* If this comment doesn't nest, stop here. */ got_com = TRUE; if (vim_strchr(part_buf, COM_NEST) == NULL) break; } return result; } /* * Return the offset at which the last comment in line starts. If there is no * comment in the whole line, -1 is returned. * * When "flags" is not null, it is set to point to the flags describing the * recognized comment leader. */ int get_last_leader_offset(char_u *line, char_u **flags) { int result = -1; int i, j; int lower_check_bound = 0; char_u *string; char_u *com_leader; char_u *com_flags; char_u *list; int found_one; char_u part_buf[COM_MAX_LEN]; /* buffer for one option part */ /* * Repeat to match several nested comment strings. */ i = (int)STRLEN(line); while (--i >= lower_check_bound) { /* * scan through the 'comments' option for a match */ found_one = FALSE; for (list = curbuf->b_p_com; *list; ) { char_u *flags_save = list; /* * Get one option part into part_buf[]. Advance list to next one. * put string at start of string. */ (void)copy_option_part(&list, part_buf, COM_MAX_LEN, ","); string = vim_strchr(part_buf, ':'); if (string == NULL) /* If everything is fine, this cannot actually * happen. */ { continue; } *string++ = NUL; /* Isolate flags from string. */ com_leader = string; /* * Line contents and string must match. * When string starts with white space, must have some white space * (but the amount does not need to match, there might be a mix of * TABs and spaces). */ if (VIM_ISWHITE(string[0])) { if (i == 0 || !VIM_ISWHITE(line[i - 1])) continue; while (VIM_ISWHITE(*string)) ++string; } for (j = 0; string[j] != NUL && string[j] == line[i + j]; ++j) /* do nothing */; if (string[j] != NUL) continue; /* * When 'b' flag used, there must be white space or an * end-of-line after the string in the line. */ if (vim_strchr(part_buf, COM_BLANK) != NULL && !VIM_ISWHITE(line[i + j]) && line[i + j] != NUL) continue; if (vim_strchr(part_buf, COM_MIDDLE) != NULL) { // For a middlepart comment, only consider it to match if // everything before the current position in the line is // whitespace. Otherwise we would think we are inside a // comment if the middle part appears somewhere in the middle // of the line. E.g. for C the "*" appears often. for (j = 0; VIM_ISWHITE(line[j]) && j <= i; j++) ; if (j < i) continue; } /* * We have found a match, stop searching. */ found_one = TRUE; if (flags) *flags = flags_save; com_flags = flags_save; break; } if (found_one) { char_u part_buf2[COM_MAX_LEN]; /* buffer for one option part */ int len1, len2, off; result = i; /* * If this comment nests, continue searching. */ if (vim_strchr(part_buf, COM_NEST) != NULL) continue; lower_check_bound = i; /* Let's verify whether the comment leader found is a substring * of other comment leaders. If it is, let's adjust the * lower_check_bound so that we make sure that we have determined * the comment leader correctly. */ while (VIM_ISWHITE(*com_leader)) ++com_leader; len1 = (int)STRLEN(com_leader); for (list = curbuf->b_p_com; *list; ) { char_u *flags_save = list; (void)copy_option_part(&list, part_buf2, COM_MAX_LEN, ","); if (flags_save == com_flags) continue; string = vim_strchr(part_buf2, ':'); ++string; while (VIM_ISWHITE(*string)) ++string; len2 = (int)STRLEN(string); if (len2 == 0) continue; /* Now we have to verify whether string ends with a substring * beginning the com_leader. */ for (off = (len2 > i ? i : len2); off > 0 && off + len1 > len2;) { --off; if (!STRNCMP(string + off, com_leader, len2 - off)) { if (i - off < lower_check_bound) lower_check_bound = i - off; } } } } } return result; } #endif /* * Return the number of window lines occupied by buffer line "lnum". */ int plines(linenr_T lnum) { return plines_win(curwin, lnum, TRUE); } int plines_win( win_T *wp, linenr_T lnum, int winheight) /* when TRUE limit to window height */ { #if defined(FEAT_DIFF) || defined(PROTO) /* Check for filler lines above this buffer line. When folded the result * is one line anyway. */ return plines_win_nofill(wp, lnum, winheight) + diff_check_fill(wp, lnum); } int plines_nofill(linenr_T lnum) { return plines_win_nofill(curwin, lnum, TRUE); } int plines_win_nofill( win_T *wp, linenr_T lnum, int winheight) /* when TRUE limit to window height */ { #endif int lines; if (!wp->w_p_wrap) return 1; if (wp->w_width == 0) return 1; #ifdef FEAT_FOLDING /* A folded lines is handled just like an empty line. */ /* NOTE: Caller must handle lines that are MAYBE folded. */ if (lineFolded(wp, lnum) == TRUE) return 1; #endif lines = plines_win_nofold(wp, lnum); if (winheight > 0 && lines > wp->w_height) return (int)wp->w_height; return lines; } /* * Return number of window lines physical line "lnum" will occupy in window * "wp". Does not care about folding, 'wrap' or 'diff'. */ int plines_win_nofold(win_T *wp, linenr_T lnum) { char_u *s; long col; int width; s = ml_get_buf(wp->w_buffer, lnum, FALSE); if (*s == NUL) /* empty line */ return 1; col = win_linetabsize(wp, s, (colnr_T)MAXCOL); /* * If list mode is on, then the '$' at the end of the line may take up one * extra column. */ if (wp->w_p_list && lcs_eol != NUL) col += 1; /* * Add column offset for 'number', 'relativenumber' and 'foldcolumn'. */ width = wp->w_width - win_col_off(wp); if (width <= 0) return 32000; if (col <= width) return 1; col -= width; width += win_col_off2(wp); return (col + (width - 1)) / width + 1; } /* * Like plines_win(), but only reports the number of physical screen lines * used from the start of the line to the given column number. */ int plines_win_col(win_T *wp, linenr_T lnum, long column) { long col; char_u *s; int lines = 0; int width; char_u *line; #ifdef FEAT_DIFF /* Check for filler lines above this buffer line. When folded the result * is one line anyway. */ lines = diff_check_fill(wp, lnum); #endif if (!wp->w_p_wrap) return lines + 1; if (wp->w_width == 0) return lines + 1; line = s = ml_get_buf(wp->w_buffer, lnum, FALSE); col = 0; while (*s != NUL && --column >= 0) { col += win_lbr_chartabsize(wp, line, s, (colnr_T)col, NULL); MB_PTR_ADV(s); } /* * If *s is a TAB, and the TAB is not displayed as ^I, and we're not in * INSERT mode, 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. */ if (*s == TAB && (State & NORMAL) && (!wp->w_p_list || lcs_tab1)) col += win_lbr_chartabsize(wp, line, s, (colnr_T)col, NULL) - 1; /* * Add column offset for 'number', 'relativenumber', 'foldcolumn', etc. */ width = wp->w_width - win_col_off(wp); if (width <= 0) return 9999; lines += 1; if (col > width) lines += (col - width) / (width + win_col_off2(wp)) + 1; return lines; } int plines_m_win(win_T *wp, linenr_T first, linenr_T last) { int count = 0; while (first <= last) { #ifdef FEAT_FOLDING int x; /* Check if there are any really folded lines, but also included lines * that are maybe folded. */ x = foldedCount(wp, first, NULL); if (x > 0) { ++count; /* count 1 for "+-- folded" line */ first += x; } else #endif { #ifdef FEAT_DIFF if (first == wp->w_topline) count += plines_win_nofill(wp, first, TRUE) + wp->w_topfill; else #endif count += plines_win(wp, first, TRUE); ++first; } } return (count); } /* * Insert string "p" at the cursor position. Stops at a NUL byte. * Handles Replace mode and multi-byte characters. */ void ins_bytes(char_u *p) { ins_bytes_len(p, (int)STRLEN(p)); } /* * Insert string "p" with length "len" at the cursor position. * Handles Replace mode and multi-byte characters. */ void ins_bytes_len(char_u *p, int len) { int i; int n; if (has_mbyte) for (i = 0; i < len; i += n) { if (enc_utf8) // avoid reading past p[len] n = utfc_ptr2len_len(p + i, len - i); else n = (*mb_ptr2len)(p + i); ins_char_bytes(p + i, n); } else for (i = 0; i < len; ++i) ins_char(p[i]); } /* * Insert or replace a single character at the cursor position. * When in REPLACE or VREPLACE mode, replace any existing character. * Caller must have prepared for undo. * For multi-byte characters we get the whole character, the caller must * convert bytes to a character. */ void ins_char(int c) { char_u buf[MB_MAXBYTES + 1]; int n = (*mb_char2bytes)(c, buf); /* When "c" is 0x100, 0x200, etc. we don't want to insert a NUL byte. * Happens for CTRL-Vu9900. */ if (buf[0] == 0) buf[0] = '\n'; ins_char_bytes(buf, n); } void ins_char_bytes(char_u *buf, int charlen) { int c = buf[0]; int newlen; // nr of bytes inserted int oldlen; // nr of bytes deleted (0 when not replacing) char_u *p; char_u *newp; char_u *oldp; int linelen; // length of old line including NUL colnr_T col; linenr_T lnum = curwin->w_cursor.lnum; int i; /* Break tabs if needed. */ if (virtual_active() && curwin->w_cursor.coladd > 0) coladvance_force(getviscol()); col = curwin->w_cursor.col; oldp = ml_get(lnum); linelen = (int)STRLEN(oldp) + 1; /* The lengths default to the values for when not replacing. */ oldlen = 0; newlen = charlen; if (State & REPLACE_FLAG) { if (State & VREPLACE_FLAG) { colnr_T new_vcol = 0; /* init for GCC */ colnr_T vcol; int old_list; /* * Disable 'list' temporarily, unless 'cpo' contains the 'L' flag. * Returns the old value of list, so when finished, * curwin->w_p_list should be set back to this. */ old_list = curwin->w_p_list; if (old_list && vim_strchr(p_cpo, CPO_LISTWM) == NULL) curwin->w_p_list = FALSE; /* * In virtual replace mode each character may replace one or more * characters (zero if it's a TAB). Count the number of bytes to * be deleted to make room for the new character, counting screen * cells. May result in adding spaces to fill a gap. */ getvcol(curwin, &curwin->w_cursor, NULL, &vcol, NULL); new_vcol = vcol + chartabsize(buf, vcol); while (oldp[col + oldlen] != NUL && vcol < new_vcol) { vcol += chartabsize(oldp + col + oldlen, vcol); /* Don't need to remove a TAB that takes us to the right * position. */ if (vcol > new_vcol && oldp[col + oldlen] == TAB) break; oldlen += (*mb_ptr2len)(oldp + col + oldlen); /* Deleted a bit too much, insert spaces. */ if (vcol > new_vcol) newlen += vcol - new_vcol; } curwin->w_p_list = old_list; } else if (oldp[col] != NUL) { /* normal replace */ oldlen = (*mb_ptr2len)(oldp + col); } /* Push the replaced bytes onto the replace stack, so that they can be * put back when BS is used. The bytes of a multi-byte character are * done the other way around, so that the first byte is popped off * first (it tells the byte length of the character). */ replace_push(NUL); for (i = 0; i < oldlen; ++i) { if (has_mbyte) i += replace_push_mb(oldp + col + i) - 1; else replace_push(oldp[col + i]); } } newp = alloc_check((unsigned)(linelen + newlen - oldlen)); if (newp == NULL) return; /* Copy bytes before the cursor. */ if (col > 0) mch_memmove(newp, oldp, (size_t)col); /* Copy bytes after the changed character(s). */ p = newp + col; if (linelen > col + oldlen) mch_memmove(p + newlen, oldp + col + oldlen, (size_t)(linelen - col - oldlen)); /* Insert or overwrite the new character. */ mch_memmove(p, buf, charlen); i = charlen; /* Fill with spaces when necessary. */ while (i < newlen) p[i++] = ' '; // Replace the line in the buffer. ml_replace(lnum, newp, FALSE); // mark the buffer as changed and prepare for displaying inserted_bytes(lnum, col, newlen - oldlen); /* * If we're in Insert or Replace mode and 'showmatch' is set, then briefly * show the match for right parens and braces. */ if (p_sm && (State & INSERT) && msg_silent == 0 #ifdef FEAT_INS_EXPAND && !ins_compl_active() #endif ) { if (has_mbyte) showmatch(mb_ptr2char(buf)); else showmatch(c); } #ifdef FEAT_RIGHTLEFT if (!p_ri || (State & REPLACE_FLAG)) #endif { /* Normal insert: move cursor right */ curwin->w_cursor.col += charlen; } /* * TODO: should try to update w_row here, to avoid recomputing it later. */ } /* * Insert a string at the cursor position. * Note: Does NOT handle Replace mode. * Caller must have prepared for undo. */ void ins_str(char_u *s) { char_u *oldp, *newp; int newlen = (int)STRLEN(s); int oldlen; colnr_T col; linenr_T lnum = curwin->w_cursor.lnum; if (virtual_active() && curwin->w_cursor.coladd > 0) coladvance_force(getviscol()); col = curwin->w_cursor.col; oldp = ml_get(lnum); oldlen = (int)STRLEN(oldp); newp = alloc_check((unsigned)(oldlen + newlen + 1)); if (newp == NULL) return; if (col > 0) mch_memmove(newp, oldp, (size_t)col); mch_memmove(newp + col, s, (size_t)newlen); mch_memmove(newp + col + newlen, oldp + col, (size_t)(oldlen - col + 1)); ml_replace(lnum, newp, FALSE); inserted_bytes(lnum, col, newlen); curwin->w_cursor.col += newlen; } /* * Delete one character under the cursor. * If "fixpos" is TRUE, don't leave the cursor on the NUL after the line. * Caller must have prepared for undo. * * return FAIL for failure, OK otherwise */ int del_char(int fixpos) { if (has_mbyte) { /* Make sure the cursor is at the start of a character. */ mb_adjust_cursor(); if (*ml_get_cursor() == NUL) return FAIL; return del_chars(1L, fixpos); } return del_bytes(1L, fixpos, TRUE); } /* * Like del_bytes(), but delete characters instead of bytes. */ int del_chars(long count, int fixpos) { long bytes = 0; long i; char_u *p; int l; p = ml_get_cursor(); for (i = 0; i < count && *p != NUL; ++i) { l = (*mb_ptr2len)(p); bytes += l; p += l; } return del_bytes(bytes, fixpos, TRUE); } /* * Delete "count" bytes under the cursor. * If "fixpos" is TRUE, don't leave the cursor on the NUL after the line. * Caller must have prepared for undo. * * Return FAIL for failure, OK otherwise. */ int del_bytes( long count, int fixpos_arg, int use_delcombine UNUSED) /* 'delcombine' option applies */ { char_u *oldp, *newp; colnr_T oldlen; colnr_T newlen; linenr_T lnum = curwin->w_cursor.lnum; colnr_T col = curwin->w_cursor.col; int alloc_newp; long movelen; int fixpos = fixpos_arg; oldp = ml_get(lnum); oldlen = (int)STRLEN(oldp); /* Can't do anything when the cursor is on the NUL after the line. */ if (col >= oldlen) return FAIL; /* If "count" is zero there is nothing to do. */ if (count == 0) return OK; /* If "count" is negative the caller must be doing something wrong. */ if (count < 1) { siemsg("E950: Invalid count for del_bytes(): %ld", count); return FAIL; } /* If 'delcombine' is set and deleting (less than) one character, only * delete the last combining character. */ if (p_deco && use_delcombine && enc_utf8 && utfc_ptr2len(oldp + col) >= count) { int cc[MAX_MCO]; int n; (void)utfc_ptr2char(oldp + col, cc); if (cc[0] != NUL) { /* Find the last composing char, there can be several. */ n = col; do { col = n; count = utf_ptr2len(oldp + n); n += count; } while (UTF_COMPOSINGLIKE(oldp + col, oldp + n)); fixpos = 0; } } /* * When count is too big, reduce it. */ movelen = (long)oldlen - (long)col - count + 1; /* includes trailing NUL */ if (movelen <= 1) { /* * If we just took off the last character of a non-blank line, and * fixpos is TRUE, we don't want to end up positioned at the NUL, * unless "restart_edit" is set or 'virtualedit' contains "onemore". */ if (col > 0 && fixpos && restart_edit == 0 && (ve_flags & VE_ONEMORE) == 0) { --curwin->w_cursor.col; curwin->w_cursor.coladd = 0; if (has_mbyte) curwin->w_cursor.col -= (*mb_head_off)(oldp, oldp + curwin->w_cursor.col); } count = oldlen - col; movelen = 1; } newlen = oldlen - count; /* * If the old line has been allocated the deletion can be done in the * existing line. Otherwise a new line has to be allocated * Can't do this when using Netbeans, because we would need to invoke * netbeans_removed(), which deallocates the line. Let ml_replace() take * care of notifying Netbeans. */ #ifdef FEAT_NETBEANS_INTG if (netbeans_active()) alloc_newp = TRUE; else #endif alloc_newp = !ml_line_alloced(); // check if oldp was allocated if (!alloc_newp) newp = oldp; // use same allocated memory else { // need to allocate a new line newp = alloc((unsigned)(newlen + 1)); if (newp == NULL) return FAIL; mch_memmove(newp, oldp, (size_t)col); } mch_memmove(newp + col, oldp + col + count, (size_t)movelen); if (alloc_newp) ml_replace(lnum, newp, FALSE); #ifdef FEAT_TEXT_PROP else { // Also move any following text properties. if (oldlen + 1 < curbuf->b_ml.ml_line_len) mch_memmove(newp + newlen + 1, oldp + oldlen + 1, (size_t)curbuf->b_ml.ml_line_len - oldlen - 1); curbuf->b_ml.ml_line_len -= count; } #endif // mark the buffer as changed and prepare for displaying inserted_bytes(lnum, curwin->w_cursor.col, -count); return OK; } /* * Delete from cursor to end of line. * Caller must have prepared for undo. * * return FAIL for failure, OK otherwise */ int truncate_line( int fixpos) /* if TRUE fix the cursor position when done */ { char_u *newp; linenr_T lnum = curwin->w_cursor.lnum; colnr_T col = curwin->w_cursor.col; if (col == 0) newp = vim_strsave((char_u *)""); else newp = vim_strnsave(ml_get(lnum), col); if (newp == NULL) return FAIL; ml_replace(lnum, newp, FALSE); /* mark the buffer as changed and prepare for displaying */ changed_bytes(lnum, curwin->w_cursor.col); /* * If "fixpos" is TRUE we don't want to end up positioned at the NUL. */ if (fixpos && curwin->w_cursor.col > 0) --curwin->w_cursor.col; return OK; } /* * Delete "nlines" lines at the cursor. * Saves the lines for undo first if "undo" is TRUE. */ void del_lines( long nlines, /* number of lines to delete */ int undo) /* if TRUE, prepare for undo */ { long n; linenr_T first = curwin->w_cursor.lnum; if (nlines <= 0) return; /* save the deleted lines for undo */ if (undo && u_savedel(first, nlines) == FAIL) return; for (n = 0; n < nlines; ) { if (curbuf->b_ml.ml_flags & ML_EMPTY) /* nothing to delete */ break; ml_delete(first, TRUE); ++n; /* If we delete the last line in the file, stop */ if (first > curbuf->b_ml.ml_line_count) break; } /* Correct the cursor position before calling deleted_lines_mark(), it may * trigger a callback to display the cursor. */ curwin->w_cursor.col = 0; check_cursor_lnum(); /* adjust marks, mark the buffer as changed and prepare for displaying */ deleted_lines_mark(first, n); } int gchar_pos(pos_T *pos) { char_u *ptr; /* When searching columns is sometimes put at the end of a line. */ if (pos->col == MAXCOL) return NUL; ptr = ml_get_pos(pos); if (has_mbyte) return (*mb_ptr2char)(ptr); return (int)*ptr; } int gchar_cursor(void) { if (has_mbyte) return (*mb_ptr2char)(ml_get_cursor()); return (int)*ml_get_cursor(); } /* * Write a character at the current cursor position. * It is directly written into the block. */ void pchar_cursor(int c) { *(ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE) + curwin->w_cursor.col) = c; } /* * When extra == 0: Return TRUE if the cursor is before or on the first * non-blank in the line. * When extra == 1: Return TRUE if the cursor is before the first non-blank in * the line. */ int inindent(int extra) { char_u *ptr; colnr_T col; for (col = 0, ptr = ml_get_curline(); VIM_ISWHITE(*ptr); ++col) ++ptr; if (col >= curwin->w_cursor.col + extra) return TRUE; else return FALSE; } /* * Skip to next part of an option argument: Skip space and comma. */ char_u * skip_to_option_part(char_u *p) { if (*p == ',') ++p; while (*p == ' ') ++p; return p; } /* * Call this function when something in the current buffer is changed. * * Most often called through changed_bytes() and changed_lines(), which also * mark the area of the display to be redrawn. * * Careful: may trigger autocommands that reload the buffer. */ void changed(void) { #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK) if (p_imst == IM_ON_THE_SPOT) { /* The text of the preediting area is inserted, but this doesn't * mean a change of the buffer yet. That is delayed until the * text is committed. (this means preedit becomes empty) */ if (im_is_preediting() && !xim_changed_while_preediting) return; xim_changed_while_preediting = FALSE; } #endif if (!curbuf->b_changed) { int save_msg_scroll = msg_scroll; /* Give a warning about changing a read-only file. This may also * check-out the file, thus change "curbuf"! */ change_warning(0); /* Create a swap file if that is wanted. * Don't do this for "nofile" and "nowrite" buffer types. */ if (curbuf->b_may_swap #ifdef FEAT_QUICKFIX && !bt_dontwrite(curbuf) #endif ) { int save_need_wait_return = need_wait_return; need_wait_return = FALSE; ml_open_file(curbuf); /* The ml_open_file() can cause an ATTENTION message. * Wait two seconds, to make sure the user reads this unexpected * message. Since we could be anywhere, call wait_return() now, * and don't let the emsg() set msg_scroll. */ if (need_wait_return && emsg_silent == 0) { out_flush(); ui_delay(2000L, TRUE); wait_return(TRUE); msg_scroll = save_msg_scroll; } else need_wait_return = save_need_wait_return; } changed_int(); } ++CHANGEDTICK(curbuf); } /* * Internal part of changed(), no user interaction. */ void changed_int(void) { curbuf->b_changed = TRUE; ml_setflags(curbuf); check_status(curbuf); redraw_tabline = TRUE; #ifdef FEAT_TITLE need_maketitle = TRUE; /* set window title later */ #endif } static void changedOneline(buf_T *buf, linenr_T lnum); static void changed_lines_buf(buf_T *buf, linenr_T lnum, linenr_T lnume, long xtra); static void changed_common(linenr_T lnum, colnr_T col, linenr_T lnume, long xtra); /* * Changed bytes within a single line for the current buffer. * - marks the windows on this buffer to be redisplayed * - marks the buffer changed by calling changed() * - invalidates cached values * Careful: may trigger autocommands that reload the buffer. */ void changed_bytes(linenr_T lnum, colnr_T col) { changedOneline(curbuf, lnum); changed_common(lnum, col, lnum + 1, 0L); #ifdef FEAT_DIFF /* Diff highlighting in other diff windows may need to be updated too. */ if (curwin->w_p_diff) { win_T *wp; linenr_T wlnum; FOR_ALL_WINDOWS(wp) if (wp->w_p_diff && wp != curwin) { redraw_win_later(wp, VALID); wlnum = diff_lnum_win(lnum, wp); if (wlnum > 0) changedOneline(wp->w_buffer, wlnum); } } #endif } /* * Like changed_bytes() but also adjust text properties for "added" bytes. * When "added" is negative text was deleted. */ void inserted_bytes(linenr_T lnum, colnr_T col, int added UNUSED) { changed_bytes(lnum, col); #ifdef FEAT_TEXT_PROP if (curbuf->b_has_textprop && added != 0) adjust_prop_columns(lnum, col, added); #endif } static void changedOneline(buf_T *buf, linenr_T lnum) { if (buf->b_mod_set) { /* find the maximum area that must be redisplayed */ if (lnum < buf->b_mod_top) buf->b_mod_top = lnum; else if (lnum >= buf->b_mod_bot) buf->b_mod_bot = lnum + 1; } else { /* set the area that must be redisplayed to one line */ buf->b_mod_set = TRUE; buf->b_mod_top = lnum; buf->b_mod_bot = lnum + 1; buf->b_mod_xlines = 0; } } /* * Appended "count" lines below line "lnum" in the current buffer. * Must be called AFTER the change and after mark_adjust(). * Takes care of marking the buffer to be redrawn and sets the changed flag. */ void appended_lines(linenr_T lnum, long count) { changed_lines(lnum + 1, 0, lnum + 1, count); } /* * Like appended_lines(), but adjust marks first. */ void appended_lines_mark(linenr_T lnum, long count) { /* Skip mark_adjust when adding a line after the last one, there can't * be marks there. But it's still needed in diff mode. */ if (lnum + count < curbuf->b_ml.ml_line_count #ifdef FEAT_DIFF || curwin->w_p_diff #endif ) mark_adjust(lnum + 1, (linenr_T)MAXLNUM, count, 0L); changed_lines(lnum + 1, 0, lnum + 1, count); } /* * Deleted "count" lines at line "lnum" in the current buffer. * Must be called AFTER the change and after mark_adjust(). * Takes care of marking the buffer to be redrawn and sets the changed flag. */ void deleted_lines(linenr_T lnum, long count) { changed_lines(lnum, 0, lnum + count, -count); } /* * Like deleted_lines(), but adjust marks first. * Make sure the cursor is on a valid line before calling, a GUI callback may * be triggered to display the cursor. */ void deleted_lines_mark(linenr_T lnum, long count) { mark_adjust(lnum, (linenr_T)(lnum + count - 1), (long)MAXLNUM, -count); changed_lines(lnum, 0, lnum + count, -count); } /* * Changed lines for the current buffer. * Must be called AFTER the change and after mark_adjust(). * - mark the buffer changed by calling changed() * - mark the windows on this buffer to be redisplayed * - invalidate cached values * "lnum" is the first line that needs displaying, "lnume" the first line * below the changed lines (BEFORE the change). * When only inserting lines, "lnum" and "lnume" are equal. * Takes care of calling changed() and updating b_mod_*. * Careful: may trigger autocommands that reload the buffer. */ void changed_lines( linenr_T lnum, /* first line with change */ colnr_T col, /* column in first line with change */ linenr_T lnume, /* line below last changed line */ long xtra) /* number of extra lines (negative when deleting) */ { changed_lines_buf(curbuf, lnum, lnume, xtra); #ifdef FEAT_DIFF if (xtra == 0 && curwin->w_p_diff && !diff_internal()) { /* When the number of lines doesn't change then mark_adjust() isn't * called and other diff buffers still need to be marked for * displaying. */ win_T *wp; linenr_T wlnum; FOR_ALL_WINDOWS(wp) if (wp->w_p_diff && wp != curwin) { redraw_win_later(wp, VALID); wlnum = diff_lnum_win(lnum, wp); if (wlnum > 0) changed_lines_buf(wp->w_buffer, wlnum, lnume - lnum + wlnum, 0L); } } #endif changed_common(lnum, col, lnume, xtra); } static void changed_lines_buf( buf_T *buf, linenr_T lnum, /* first line with change */ linenr_T lnume, /* line below last changed line */ long xtra) /* number of extra lines (negative when deleting) */ { if (buf->b_mod_set) { /* find the maximum area that must be redisplayed */ if (lnum < buf->b_mod_top) buf->b_mod_top = lnum; if (lnum < buf->b_mod_bot) { /* adjust old bot position for xtra lines */ buf->b_mod_bot += xtra; if (buf->b_mod_bot < lnum) buf->b_mod_bot = lnum; } if (lnume + xtra > buf->b_mod_bot) buf->b_mod_bot = lnume + xtra; buf->b_mod_xlines += xtra; } else { /* set the area that must be redisplayed */ buf->b_mod_set = TRUE; buf->b_mod_top = lnum; buf->b_mod_bot = lnume + xtra; buf->b_mod_xlines = xtra; } } /* * Common code for when a change is was made. * See changed_lines() for the arguments. * Careful: may trigger autocommands that reload the buffer. */ static void changed_common( linenr_T lnum, colnr_T col, linenr_T lnume, long xtra) { win_T *wp; tabpage_T *tp; int i; #ifdef FEAT_JUMPLIST int cols; pos_T *p; int add; #endif /* mark the buffer as modified */ changed(); #ifdef FEAT_DIFF if (curwin->w_p_diff && diff_internal()) curtab->tp_diff_update = TRUE; #endif /* set the '. mark */ if (!cmdmod.keepjumps) { curbuf->b_last_change.lnum = lnum; curbuf->b_last_change.col = col; #ifdef FEAT_JUMPLIST /* Create a new entry if a new undo-able change was started or we * don't have an entry yet. */ if (curbuf->b_new_change || curbuf->b_changelistlen == 0) { if (curbuf->b_changelistlen == 0) add = TRUE; else { /* Don't create a new entry when the line number is the same * as the last one and the column is not too far away. Avoids * creating many entries for typing "xxxxx". */ p = &curbuf->b_changelist[curbuf->b_changelistlen - 1]; if (p->lnum != lnum) add = TRUE; else { cols = comp_textwidth(FALSE); if (cols == 0) cols = 79; add = (p->col + cols < col || col + cols < p->col); } } if (add) { /* This is the first of a new sequence of undo-able changes * and it's at some distance of the last change. Use a new * position in the changelist. */ curbuf->b_new_change = FALSE; if (curbuf->b_changelistlen == JUMPLISTSIZE) { /* changelist is full: remove oldest entry */ curbuf->b_changelistlen = JUMPLISTSIZE - 1; mch_memmove(curbuf->b_changelist, curbuf->b_changelist + 1, sizeof(pos_T) * (JUMPLISTSIZE - 1)); FOR_ALL_TAB_WINDOWS(tp, wp) { /* Correct position in changelist for other windows on * this buffer. */ if (wp->w_buffer == curbuf && wp->w_changelistidx > 0) --wp->w_changelistidx; } } FOR_ALL_TAB_WINDOWS(tp, wp) { /* For other windows, if the position in the changelist is * at the end it stays at the end. */ if (wp->w_buffer == curbuf && wp->w_changelistidx == curbuf->b_changelistlen) ++wp->w_changelistidx; } ++curbuf->b_changelistlen; } } curbuf->b_changelist[curbuf->b_changelistlen - 1] = curbuf->b_last_change; /* The current window is always after the last change, so that "g," * takes you back to it. */ curwin->w_changelistidx = curbuf->b_changelistlen; #endif } FOR_ALL_TAB_WINDOWS(tp, wp) { if (wp->w_buffer == curbuf) { /* Mark this window to be redrawn later. */ if (wp->w_redr_type < VALID) wp->w_redr_type = VALID; /* Check if a change in the buffer has invalidated the cached * values for the cursor. */ #ifdef FEAT_FOLDING /* * Update the folds for this window. Can't postpone this, because * a following operator might work on the whole fold: ">>dd". */ foldUpdate(wp, lnum, lnume + xtra - 1); /* The change may cause lines above or below the change to become * included in a fold. Set lnum/lnume to the first/last line that * might be displayed differently. * Set w_cline_folded here as an efficient way to update it when * inserting lines just above a closed fold. */ i = hasFoldingWin(wp, lnum, &lnum, NULL, FALSE, NULL); if (wp->w_cursor.lnum == lnum) wp->w_cline_folded = i; i = hasFoldingWin(wp, lnume, NULL, &lnume, FALSE, NULL); if (wp->w_cursor.lnum == lnume) wp->w_cline_folded = i; /* If the changed line is in a range of previously folded lines, * compare with the first line in that range. */ if (wp->w_cursor.lnum <= lnum) { i = find_wl_entry(wp, lnum); if (i >= 0 && wp->w_cursor.lnum > wp->w_lines[i].wl_lnum) changed_line_abv_curs_win(wp); } #endif if (wp->w_cursor.lnum > lnum) changed_line_abv_curs_win(wp); else if (wp->w_cursor.lnum == lnum && wp->w_cursor.col >= col) changed_cline_bef_curs_win(wp); if (wp->w_botline >= lnum) { /* Assume that botline doesn't change (inserted lines make * other lines scroll down below botline). */ approximate_botline_win(wp); } /* Check if any w_lines[] entries have become invalid. * For entries below the change: Correct the lnums for * inserted/deleted lines. Makes it possible to stop displaying * after the change. */ for (i = 0; i < wp->w_lines_valid; ++i) if (wp->w_lines[i].wl_valid) { if (wp->w_lines[i].wl_lnum >= lnum) { if (wp->w_lines[i].wl_lnum < lnume) { /* line included in change */ wp->w_lines[i].wl_valid = FALSE; } else if (xtra != 0) { /* line below change */ wp->w_lines[i].wl_lnum += xtra; #ifdef FEAT_FOLDING wp->w_lines[i].wl_lastlnum += xtra; #endif } } #ifdef FEAT_FOLDING else if (wp->w_lines[i].wl_lastlnum >= lnum) { /* change somewhere inside this range of folded lines, * may need to be redrawn */ wp->w_lines[i].wl_valid = FALSE; } #endif } #ifdef FEAT_FOLDING /* Take care of side effects for setting w_topline when folds have * changed. Esp. when the buffer was changed in another window. */ if (hasAnyFolding(wp)) set_topline(wp, wp->w_topline); #endif /* relative numbering may require updating more */ if (wp->w_p_rnu) redraw_win_later(wp, SOME_VALID); } } /* Call update_screen() later, which checks out what needs to be redrawn, * since it notices b_mod_set and then uses b_mod_*. */ if (must_redraw < VALID) must_redraw = VALID; /* when the cursor line is changed always trigger CursorMoved */ if (lnum <= curwin->w_cursor.lnum && lnume + (xtra < 0 ? -xtra : xtra) > curwin->w_cursor.lnum) last_cursormoved.lnum = 0; } /* * unchanged() is called when the changed flag must be reset for buffer 'buf' */ void unchanged( buf_T *buf, int ff) /* also reset 'fileformat' */ { if (buf->b_changed || (ff && file_ff_differs(buf, FALSE))) { buf->b_changed = 0; ml_setflags(buf); if (ff) save_file_ff(buf); check_status(buf); redraw_tabline = TRUE; #ifdef FEAT_TITLE need_maketitle = TRUE; /* set window title later */ #endif } ++CHANGEDTICK(buf); #ifdef FEAT_NETBEANS_INTG netbeans_unmodified(buf); #endif } /* * check_status: called when the status bars for the buffer 'buf' * need to be updated */ void check_status(buf_T *buf) { win_T *wp; FOR_ALL_WINDOWS(wp) if (wp->w_buffer == buf && wp->w_status_height) { wp->w_redr_status = TRUE; if (must_redraw < VALID) must_redraw = VALID; } } /* * If the file is readonly, give a warning message with the first change. * Don't do this for autocommands. * Don't use emsg(), because it flushes the macro buffer. * If we have undone all changes b_changed will be FALSE, but "b_did_warn" * will be TRUE. * Careful: may trigger autocommands that reload the buffer. */ void change_warning( int col) /* column for message; non-zero when in insert mode and 'showmode' is on */ { static char *w_readonly = N_("W10: Warning: Changing a readonly file"); if (curbuf->b_did_warn == FALSE && curbufIsChanged() == 0 && !autocmd_busy && curbuf->b_p_ro) { ++curbuf_lock; apply_autocmds(EVENT_FILECHANGEDRO, NULL, NULL, FALSE, curbuf); --curbuf_lock; if (!curbuf->b_p_ro) return; /* * Do what msg() does, but with a column offset if the warning should * be after the mode message. */ msg_start(); if (msg_row == Rows - 1) msg_col = col; msg_source(HL_ATTR(HLF_W)); msg_puts_attr(_(w_readonly), HL_ATTR(HLF_W) | MSG_HIST); #ifdef FEAT_EVAL set_vim_var_string(VV_WARNINGMSG, (char_u *)_(w_readonly), -1); #endif msg_clr_eos(); (void)msg_end(); if (msg_silent == 0 && !silent_mode #ifdef FEAT_EVAL && time_for_testing != 1 #endif ) { out_flush(); ui_delay(1000L, TRUE); /* give the user time to think about it */ } curbuf->b_did_warn = TRUE; redraw_cmdline = FALSE; /* don't redraw and erase the message */ if (msg_row < Rows - 1) showmode(); } } /* * Ask for a reply from the user, a 'y' or a 'n'. * No other characters are accepted, the message is repeated until a valid * reply is entered or CTRL-C is hit. * If direct is TRUE, don't use vgetc() but ui_inchar(), don't get characters * from any buffers but directly from the user. * * return the 'y' or 'n' */ int ask_yesno(char_u *str, int direct) { int r = ' '; int save_State = State; if (exiting) /* put terminal in raw mode for this question */ settmode(TMODE_RAW); ++no_wait_return; #ifdef USE_ON_FLY_SCROLL dont_scroll = TRUE; /* disallow scrolling here */ #endif State = CONFIRM; /* mouse behaves like with :confirm */ #ifdef FEAT_MOUSE setmouse(); /* disables mouse for xterm */ #endif ++no_mapping; ++allow_keys; /* no mapping here, but recognize keys */ while (r != 'y' && r != 'n') { /* same highlighting as for wait_return */ smsg_attr(HL_ATTR(HLF_R), "%s (y/n)?", str); if (direct) r = get_keystroke(); else r = plain_vgetc(); if (r == Ctrl_C || r == ESC) r = 'n'; msg_putchar(r); /* show what you typed */ out_flush(); } --no_wait_return; State = save_State; #ifdef FEAT_MOUSE setmouse(); #endif --no_mapping; --allow_keys; return r; } #if defined(FEAT_MOUSE) || defined(PROTO) /* * Return TRUE if "c" is a mouse key. */ int is_mouse_key(int c) { return c == K_LEFTMOUSE || c == K_LEFTMOUSE_NM || c == K_LEFTDRAG || c == K_LEFTRELEASE || c == K_LEFTRELEASE_NM || c == K_MOUSEMOVE || c == K_MIDDLEMOUSE || c == K_MIDDLEDRAG || c == K_MIDDLERELEASE || c == K_RIGHTMOUSE || c == K_RIGHTDRAG || c == K_RIGHTRELEASE || c == K_MOUSEDOWN || c == K_MOUSEUP || c == K_MOUSELEFT || c == K_MOUSERIGHT || c == K_X1MOUSE || c == K_X1DRAG || c == K_X1RELEASE || c == K_X2MOUSE || c == K_X2DRAG || c == K_X2RELEASE; } #endif /* * Get a key stroke directly from the user. * Ignores mouse clicks and scrollbar events, except a click for the left * button (used at the more prompt). * Doesn't use vgetc(), because it syncs undo and eats mapped characters. * Disadvantage: typeahead is ignored. * Translates the interrupt character for unix to ESC. */ int get_keystroke(void) { char_u *buf = NULL; int buflen = 150; int maxlen; int len = 0; int n; int save_mapped_ctrl_c = mapped_ctrl_c; int waited = 0; mapped_ctrl_c = FALSE; /* mappings are not used here */ for (;;) { cursor_on(); out_flush(); /* Leave some room for check_termcode() to insert a key code into (max * 5 chars plus NUL). And fix_input_buffer() can triple the number of * bytes. */ maxlen = (buflen - 6 - len) / 3; if (buf == NULL) buf = alloc(buflen); else if (maxlen < 10) { char_u *t_buf = buf; /* Need some more space. This might happen when receiving a long * escape sequence. */ buflen += 100; buf = vim_realloc(buf, buflen); if (buf == NULL) vim_free(t_buf); maxlen = (buflen - 6 - len) / 3; } if (buf == NULL) { do_outofmem_msg((long_u)buflen); return ESC; /* panic! */ } /* First time: blocking wait. Second time: wait up to 100ms for a * terminal code to complete. */ n = ui_inchar(buf + len, maxlen, len == 0 ? -1L : 100L, 0); if (n > 0) { /* Replace zero and CSI by a special key code. */ n = fix_input_buffer(buf + len, n); len += n; waited = 0; } else if (len > 0) ++waited; /* keep track of the waiting time */ /* Incomplete termcode and not timed out yet: get more characters */ if ((n = check_termcode(1, buf, buflen, &len)) < 0 && (!p_ttimeout || waited * 100L < (p_ttm < 0 ? p_tm : p_ttm))) continue; if (n == KEYLEN_REMOVED) /* key code removed */ { if (must_redraw != 0 && !need_wait_return && (State & CMDLINE) == 0) { /* Redrawing was postponed, do it now. */ update_screen(0); setcursor(); /* put cursor back where it belongs */ } continue; } if (n > 0) /* found a termcode: adjust length */ len = n; if (len == 0) /* nothing typed yet */ continue; /* Handle modifier and/or special key code. */ n = buf[0]; if (n == K_SPECIAL) { n = TO_SPECIAL(buf[1], buf[2]); if (buf[1] == KS_MODIFIER || n == K_IGNORE #ifdef FEAT_MOUSE || (is_mouse_key(n) && n != K_LEFTMOUSE) #endif #ifdef FEAT_GUI || n == K_VER_SCROLLBAR || n == K_HOR_SCROLLBAR #endif ) { if (buf[1] == KS_MODIFIER) mod_mask = buf[2]; len -= 3; if (len > 0) mch_memmove(buf, buf + 3, (size_t)len); continue; } break; } if (has_mbyte) { if (MB_BYTE2LEN(n) > len) continue; /* more bytes to get */ buf[len >= buflen ? buflen - 1 : len] = NUL; n = (*mb_ptr2char)(buf); } #ifdef UNIX if (n == intr_char) n = ESC; #endif break; } vim_free(buf); mapped_ctrl_c = save_mapped_ctrl_c; return n; } /* * Get a number from the user. * When "mouse_used" is not NULL allow using the mouse. */ int get_number( int colon, /* allow colon to abort */ int *mouse_used) { int n = 0; int c; int typed = 0; if (mouse_used != NULL) *mouse_used = FALSE; /* When not printing messages, the user won't know what to type, return a * zero (as if CR was hit). */ if (msg_silent != 0) return 0; #ifdef USE_ON_FLY_SCROLL dont_scroll = TRUE; /* disallow scrolling here */ #endif ++no_mapping; ++allow_keys; /* no mapping here, but recognize keys */ for (;;) { windgoto(msg_row, msg_col); c = safe_vgetc(); if (VIM_ISDIGIT(c)) { n = n * 10 + c - '0'; msg_putchar(c); ++typed; } else if (c == K_DEL || c == K_KDEL || c == K_BS || c == Ctrl_H) { if (typed > 0) { msg_puts("\b \b"); --typed; } n /= 10; } #ifdef FEAT_MOUSE else if (mouse_used != NULL && c == K_LEFTMOUSE) { *mouse_used = TRUE; n = mouse_row + 1; break; } #endif else if (n == 0 && c == ':' && colon) { stuffcharReadbuff(':'); if (!exmode_active) cmdline_row = msg_row; skip_redraw = TRUE; /* skip redraw once */ do_redraw = FALSE; break; } else if (c == CAR || c == NL || c == Ctrl_C || c == ESC) break; } --no_mapping; --allow_keys; return n; } /* * Ask the user to enter a number. * When "mouse_used" is not NULL allow using the mouse and in that case return * the line number. */ int prompt_for_number(int *mouse_used) { int i; int save_cmdline_row; int save_State; /* When using ":silent" assume that <CR> was entered. */ if (mouse_used != NULL) msg_puts(_("Type number and <Enter> or click with mouse (empty cancels): ")); else msg_puts(_("Type number and <Enter> (empty cancels): ")); // Set the state such that text can be selected/copied/pasted and we still // get mouse events. redraw_after_callback() will not redraw if cmdline_row // is zero. save_cmdline_row = cmdline_row; cmdline_row = 0; save_State = State; State = CMDLINE; #ifdef FEAT_MOUSE // May show different mouse shape. setmouse(); #endif i = get_number(TRUE, mouse_used); if (KeyTyped) { /* don't call wait_return() now */ /* msg_putchar('\n'); */ cmdline_row = msg_row - 1; need_wait_return = FALSE; msg_didany = FALSE; msg_didout = FALSE; } else cmdline_row = save_cmdline_row; State = save_State; #ifdef FEAT_MOUSE // May need to restore mouse shape. setmouse(); #endif return i; } void msgmore(long n) { long pn; if (global_busy /* no messages now, wait until global is finished */ || !messaging()) /* 'lazyredraw' set, don't do messages now */ return; /* We don't want to overwrite another important message, but do overwrite * a previous "more lines" or "fewer lines" message, so that "5dd" and * then "put" reports the last action. */ if (keep_msg != NULL && !keep_msg_more) return; if (n > 0) pn = n; else pn = -n; if (pn > p_report) { if (n > 0) vim_snprintf(msg_buf, MSG_BUF_LEN, NGETTEXT("%ld more line", "%ld more lines", pn), pn); else vim_snprintf(msg_buf, MSG_BUF_LEN, NGETTEXT("%ld line less", "%ld fewer lines", pn), pn); if (got_int) vim_strcat((char_u *)msg_buf, (char_u *)_(" (Interrupted)"), MSG_BUF_LEN); if (msg(msg_buf)) { set_keep_msg((char_u *)msg_buf, 0); keep_msg_more = TRUE; } } } /* * flush map and typeahead buffers and give a warning for an error */ void beep_flush(void) { if (emsg_silent == 0) { flush_buffers(FLUSH_MINIMAL); vim_beep(BO_ERROR); } } /* * Give a warning for an error. */ void vim_beep( unsigned val) /* one of the BO_ values, e.g., BO_OPER */ { #ifdef FEAT_EVAL called_vim_beep = TRUE; #endif if (emsg_silent == 0) { if (!((bo_flags & val) || (bo_flags & BO_ALL))) { #ifdef ELAPSED_FUNC static int did_init = FALSE; static elapsed_T start_tv; /* Only beep once per half a second, otherwise a sequence of beeps * would freeze Vim. */ if (!did_init || ELAPSED_FUNC(start_tv) > 500) { did_init = TRUE; ELAPSED_INIT(start_tv); #endif if (p_vb #ifdef FEAT_GUI /* While the GUI is starting up the termcap is set for * the GUI but the output still goes to a terminal. */ && !(gui.in_use && gui.starting) #endif ) { out_str_cf(T_VB); #ifdef FEAT_VTP /* No restore color information, refresh the screen. */ if (has_vtp_working() != 0 # ifdef FEAT_TERMGUICOLORS && (p_tgc || (!p_tgc && t_colors >= 256)) # endif ) { redraw_later(CLEAR); update_screen(0); redrawcmd(); } #endif } else out_char(BELL); #ifdef ELAPSED_FUNC } #endif } /* When 'debug' contains "beep" produce a message. If we are sourcing * a script or executing a function give the user a hint where the beep * comes from. */ if (vim_strchr(p_debug, 'e') != NULL) { msg_source(HL_ATTR(HLF_W)); msg_attr(_("Beep!"), HL_ATTR(HLF_W)); } } } /* * To get the "real" home directory: * - get value of $HOME * For Unix: * - go to that directory * - do mch_dirname() to get the real name of that directory. * This also works with mounts and links. * Don't do this for MS-DOS, it will change the "current dir" for a drive. * For Windows: * This code is duplicated in init_homedir() in dosinst.c. Keep in sync! */ static char_u *homedir = NULL; void init_homedir(void) { char_u *var; /* In case we are called a second time (when 'encoding' changes). */ VIM_CLEAR(homedir); #ifdef VMS var = mch_getenv((char_u *)"SYS$LOGIN"); #else var = mch_getenv((char_u *)"HOME"); #endif #ifdef MSWIN /* * Typically, $HOME is not defined on Windows, unless the user has * specifically defined it for Vim's sake. However, on Windows NT * platforms, $HOMEDRIVE and $HOMEPATH are automatically defined for * each user. Try constructing $HOME from these. */ if (var == NULL || *var == NUL) { char_u *homedrive, *homepath; homedrive = mch_getenv((char_u *)"HOMEDRIVE"); homepath = mch_getenv((char_u *)"HOMEPATH"); if (homepath == NULL || *homepath == NUL) homepath = (char_u *)"\\"; if (homedrive != NULL && STRLEN(homedrive) + STRLEN(homepath) < MAXPATHL) { sprintf((char *)NameBuff, "%s%s", homedrive, homepath); if (NameBuff[0] != NUL) var = NameBuff; } } if (var == NULL) var = mch_getenv((char_u *)"USERPROFILE"); /* * Weird but true: $HOME may contain an indirect reference to another * variable, esp. "%USERPROFILE%". Happens when $USERPROFILE isn't set * when $HOME is being set. */ if (var != NULL && *var == '%') { char_u *p; char_u *exp; p = vim_strchr(var + 1, '%'); if (p != NULL) { vim_strncpy(NameBuff, var + 1, p - (var + 1)); exp = mch_getenv(NameBuff); if (exp != NULL && *exp != NUL && STRLEN(exp) + STRLEN(p) < MAXPATHL) { vim_snprintf((char *)NameBuff, MAXPATHL, "%s%s", exp, p + 1); var = NameBuff; } } } if (var != NULL && *var == NUL) /* empty is same as not set */ var = NULL; if (enc_utf8 && var != NULL) { int len; char_u *pp = NULL; /* Convert from active codepage to UTF-8. Other conversions are * not done, because they would fail for non-ASCII characters. */ acp_to_enc(var, (int)STRLEN(var), &pp, &len); if (pp != NULL) { homedir = pp; return; } } /* * Default home dir is C:/ * Best assumption we can make in such a situation. */ if (var == NULL) var = (char_u *)"C:/"; #endif if (var != NULL) { #ifdef UNIX /* * Change to the directory and get the actual path. This resolves * links. Don't do it when we can't return. */ if (mch_dirname(NameBuff, MAXPATHL) == OK && mch_chdir((char *)NameBuff) == 0) { if (!mch_chdir((char *)var) && mch_dirname(IObuff, IOSIZE) == OK) var = IObuff; if (mch_chdir((char *)NameBuff) != 0) emsg(_(e_prev_dir)); } #endif homedir = vim_strsave(var); } } #if defined(EXITFREE) || defined(PROTO) void free_homedir(void) { vim_free(homedir); } # ifdef FEAT_CMDL_COMPL void free_users(void) { ga_clear_strings(&ga_users); } # endif #endif /* * Call expand_env() and store the result in an allocated string. * This is not very memory efficient, this expects the result to be freed * again soon. */ char_u * expand_env_save(char_u *src) { return expand_env_save_opt(src, FALSE); } /* * Idem, but when "one" is TRUE handle the string as one file name, only * expand "~" at the start. */ char_u * expand_env_save_opt(char_u *src, int one) { char_u *p; p = alloc(MAXPATHL); if (p != NULL) expand_env_esc(src, p, MAXPATHL, FALSE, one, NULL); return p; } /* * Expand environment variable with path name. * "~/" is also expanded, using $HOME. For Unix "~user/" is expanded. * Skips over "\ ", "\~" and "\$" (not for Win32 though). * If anything fails no expansion is done and dst equals src. */ void expand_env( char_u *src, /* input string e.g. "$HOME/vim.hlp" */ char_u *dst, /* where to put the result */ int dstlen) /* maximum length of the result */ { expand_env_esc(src, dst, dstlen, FALSE, FALSE, NULL); } void expand_env_esc( char_u *srcp, /* input string e.g. "$HOME/vim.hlp" */ char_u *dst, /* where to put the result */ int dstlen, /* maximum length of the result */ int esc, /* escape spaces in expanded variables */ int one, /* "srcp" is one file name */ char_u *startstr) /* start again after this (can be NULL) */ { char_u *src; char_u *tail; int c; char_u *var; int copy_char; int mustfree; /* var was allocated, need to free it later */ int at_start = TRUE; /* at start of a name */ int startstr_len = 0; if (startstr != NULL) startstr_len = (int)STRLEN(startstr); src = skipwhite(srcp); --dstlen; /* leave one char space for "\," */ while (*src && dstlen > 0) { #ifdef FEAT_EVAL /* Skip over `=expr`. */ if (src[0] == '`' && src[1] == '=') { size_t len; var = src; src += 2; (void)skip_expr(&src); if (*src == '`') ++src; len = src - var; if (len > (size_t)dstlen) len = dstlen; vim_strncpy(dst, var, len); dst += len; dstlen -= (int)len; continue; } #endif copy_char = TRUE; if ((*src == '$' #ifdef VMS && at_start #endif ) #if defined(MSWIN) || *src == '%' #endif || (*src == '~' && at_start)) { mustfree = FALSE; /* * The variable name is copied into dst temporarily, because it may * be a string in read-only memory and a NUL needs to be appended. */ if (*src != '~') /* environment var */ { tail = src + 1; var = dst; c = dstlen - 1; #ifdef UNIX /* Unix has ${var-name} type environment vars */ if (*tail == '{' && !vim_isIDc('{')) { tail++; /* ignore '{' */ while (c-- > 0 && *tail && *tail != '}') *var++ = *tail++; } else #endif { while (c-- > 0 && *tail != NUL && ((vim_isIDc(*tail)) #if defined(MSWIN) || (*src == '%' && *tail != '%') #endif )) { *var++ = *tail++; } } #if defined(MSWIN) || defined(UNIX) # ifdef UNIX if (src[1] == '{' && *tail != '}') # else if (*src == '%' && *tail != '%') # endif var = NULL; else { # ifdef UNIX if (src[1] == '{') # else if (*src == '%') #endif ++tail; #endif *var = NUL; var = vim_getenv(dst, &mustfree); #if defined(MSWIN) || defined(UNIX) } #endif } /* home directory */ else if ( src[1] == NUL || vim_ispathsep(src[1]) || vim_strchr((char_u *)" ,\t\n", src[1]) != NULL) { var = homedir; tail = src + 1; } else /* user directory */ { #if defined(UNIX) || (defined(VMS) && defined(USER_HOME)) /* * Copy ~user to dst[], so we can put a NUL after it. */ tail = src; var = dst; c = dstlen - 1; while ( c-- > 0 && *tail && vim_isfilec(*tail) && !vim_ispathsep(*tail)) *var++ = *tail++; *var = NUL; # ifdef UNIX /* * If the system supports getpwnam(), use it. * Otherwise, or if getpwnam() fails, the shell is used to * expand ~user. This is slower and may fail if the shell * does not support ~user (old versions of /bin/sh). */ # if defined(HAVE_GETPWNAM) && defined(HAVE_PWD_H) { /* Note: memory allocated by getpwnam() is never freed. * Calling endpwent() apparently doesn't help. */ struct passwd *pw = (*dst == NUL) ? NULL : getpwnam((char *)dst + 1); var = (pw == NULL) ? NULL : (char_u *)pw->pw_dir; } if (var == NULL) # endif { expand_T xpc; ExpandInit(&xpc); xpc.xp_context = EXPAND_FILES; var = ExpandOne(&xpc, dst, NULL, WILD_ADD_SLASH|WILD_SILENT, WILD_EXPAND_FREE); mustfree = TRUE; } # else /* !UNIX, thus VMS */ /* * USER_HOME is a comma-separated list of * directories to search for the user account in. */ { char_u test[MAXPATHL], paths[MAXPATHL]; char_u *path, *next_path, *ptr; stat_T st; STRCPY(paths, USER_HOME); next_path = paths; while (*next_path) { for (path = next_path; *next_path && *next_path != ','; next_path++); if (*next_path) *next_path++ = NUL; STRCPY(test, path); STRCAT(test, "/"); STRCAT(test, dst + 1); if (mch_stat(test, &st) == 0) { var = alloc(STRLEN(test) + 1); STRCPY(var, test); mustfree = TRUE; break; } } } # endif /* UNIX */ #else /* cannot expand user's home directory, so don't try */ var = NULL; tail = (char_u *)""; /* for gcc */ #endif /* UNIX || VMS */ } #ifdef BACKSLASH_IN_FILENAME /* If 'shellslash' is set change backslashes to forward slashes. * Can't use slash_adjust(), p_ssl may be set temporarily. */ if (p_ssl && var != NULL && vim_strchr(var, '\\') != NULL) { char_u *p = vim_strsave(var); if (p != NULL) { if (mustfree) vim_free(var); var = p; mustfree = TRUE; forward_slash(var); } } #endif /* If "var" contains white space, escape it with a backslash. * Required for ":e ~/tt" when $HOME includes a space. */ if (esc && var != NULL && vim_strpbrk(var, (char_u *)" \t") != NULL) { char_u *p = vim_strsave_escaped(var, (char_u *)" \t"); if (p != NULL) { if (mustfree) vim_free(var); var = p; mustfree = TRUE; } } if (var != NULL && *var != NUL && (STRLEN(var) + STRLEN(tail) + 1 < (unsigned)dstlen)) { STRCPY(dst, var); dstlen -= (int)STRLEN(var); c = (int)STRLEN(var); /* if var[] ends in a path separator and tail[] starts * with it, skip a character */ if (*var != NUL && after_pathsep(dst, dst + c) #if defined(BACKSLASH_IN_FILENAME) || defined(AMIGA) && dst[-1] != ':' #endif && vim_ispathsep(*tail)) ++tail; dst += c; src = tail; copy_char = FALSE; } if (mustfree) vim_free(var); } if (copy_char) /* copy at least one char */ { /* * Recognize the start of a new name, for '~'. * Don't do this when "one" is TRUE, to avoid expanding "~" in * ":edit foo ~ foo". */ at_start = FALSE; if (src[0] == '\\' && src[1] != NUL) { *dst++ = *src++; --dstlen; } else if ((src[0] == ' ' || src[0] == ',') && !one) at_start = TRUE; if (dstlen > 0) { *dst++ = *src++; --dstlen; if (startstr != NULL && src - startstr_len >= srcp && STRNCMP(src - startstr_len, startstr, startstr_len) == 0) at_start = TRUE; } } } *dst = NUL; } /* * Vim's version of getenv(). * Special handling of $HOME, $VIM and $VIMRUNTIME. * Also does ACP to 'enc' conversion for Win32. * "mustfree" is set to TRUE when returned is allocated, it must be * initialized to FALSE by the caller. */ char_u * vim_getenv(char_u *name, int *mustfree) { char_u *p; char_u *pend; int vimruntime; #if defined(MSWIN) /* use "C:/" when $HOME is not set */ if (STRCMP(name, "HOME") == 0) return homedir; #endif p = mch_getenv(name); if (p != NULL && *p == NUL) /* empty is the same as not set */ p = NULL; if (p != NULL) { #if defined(MSWIN) if (enc_utf8) { int len; char_u *pp = NULL; /* Convert from active codepage to UTF-8. Other conversions are * not done, because they would fail for non-ASCII characters. */ acp_to_enc(p, (int)STRLEN(p), &pp, &len); if (pp != NULL) { p = pp; *mustfree = TRUE; } } #endif return p; } vimruntime = (STRCMP(name, "VIMRUNTIME") == 0); if (!vimruntime && STRCMP(name, "VIM") != 0) return NULL; /* * When expanding $VIMRUNTIME fails, try using $VIM/vim<version> or $VIM. * Don't do this when default_vimruntime_dir is non-empty. */ if (vimruntime #ifdef HAVE_PATHDEF && *default_vimruntime_dir == NUL #endif ) { p = mch_getenv((char_u *)"VIM"); if (p != NULL && *p == NUL) /* empty is the same as not set */ p = NULL; if (p != NULL) { p = vim_version_dir(p); if (p != NULL) *mustfree = TRUE; else p = mch_getenv((char_u *)"VIM"); #if defined(MSWIN) if (enc_utf8) { int len; char_u *pp = NULL; /* Convert from active codepage to UTF-8. Other conversions * are not done, because they would fail for non-ASCII * characters. */ acp_to_enc(p, (int)STRLEN(p), &pp, &len); if (pp != NULL) { if (*mustfree) vim_free(p); p = pp; *mustfree = TRUE; } } #endif } } /* * When expanding $VIM or $VIMRUNTIME fails, try using: * - the directory name from 'helpfile' (unless it contains '$') * - the executable name from argv[0] */ if (p == NULL) { if (p_hf != NULL && vim_strchr(p_hf, '$') == NULL) p = p_hf; #ifdef USE_EXE_NAME /* * Use the name of the executable, obtained from argv[0]. */ else p = exe_name; #endif if (p != NULL) { /* remove the file name */ pend = gettail(p); /* remove "doc/" from 'helpfile', if present */ if (p == p_hf) pend = remove_tail(p, pend, (char_u *)"doc"); #ifdef USE_EXE_NAME # ifdef MACOS_X /* remove "MacOS" from exe_name and add "Resources/vim" */ if (p == exe_name) { char_u *pend1; char_u *pnew; pend1 = remove_tail(p, pend, (char_u *)"MacOS"); if (pend1 != pend) { pnew = alloc((unsigned)(pend1 - p) + 15); if (pnew != NULL) { STRNCPY(pnew, p, (pend1 - p)); STRCPY(pnew + (pend1 - p), "Resources/vim"); p = pnew; pend = p + STRLEN(p); } } } # endif /* remove "src/" from exe_name, if present */ if (p == exe_name) pend = remove_tail(p, pend, (char_u *)"src"); #endif /* for $VIM, remove "runtime/" or "vim54/", if present */ if (!vimruntime) { pend = remove_tail(p, pend, (char_u *)RUNTIME_DIRNAME); pend = remove_tail(p, pend, (char_u *)VIM_VERSION_NODOT); } /* remove trailing path separator */ if (pend > p && after_pathsep(p, pend)) --pend; #ifdef MACOS_X if (p == exe_name || p == p_hf) #endif /* check that the result is a directory name */ p = vim_strnsave(p, (int)(pend - p)); if (p != NULL && !mch_isdir(p)) VIM_CLEAR(p); else { #ifdef USE_EXE_NAME /* may add "/vim54" or "/runtime" if it exists */ if (vimruntime && (pend = vim_version_dir(p)) != NULL) { vim_free(p); p = pend; } #endif *mustfree = TRUE; } } } #ifdef HAVE_PATHDEF /* When there is a pathdef.c file we can use default_vim_dir and * default_vimruntime_dir */ if (p == NULL) { /* Only use default_vimruntime_dir when it is not empty */ if (vimruntime && *default_vimruntime_dir != NUL) { p = default_vimruntime_dir; *mustfree = FALSE; } else if (*default_vim_dir != NUL) { if (vimruntime && (p = vim_version_dir(default_vim_dir)) != NULL) *mustfree = TRUE; else { p = default_vim_dir; *mustfree = FALSE; } } } #endif /* * Set the environment variable, so that the new value can be found fast * next time, and others can also use it (e.g. Perl). */ if (p != NULL) { if (vimruntime) { vim_setenv((char_u *)"VIMRUNTIME", p); didset_vimruntime = TRUE; } else { vim_setenv((char_u *)"VIM", p); didset_vim = TRUE; } } return p; } /* * Check if the directory "vimdir/<version>" or "vimdir/runtime" exists. * Return NULL if not, return its name in allocated memory otherwise. */ static char_u * vim_version_dir(char_u *vimdir) { char_u *p; if (vimdir == NULL || *vimdir == NUL) return NULL; p = concat_fnames(vimdir, (char_u *)VIM_VERSION_NODOT, TRUE); if (p != NULL && mch_isdir(p)) return p; vim_free(p); p = concat_fnames(vimdir, (char_u *)RUNTIME_DIRNAME, TRUE); if (p != NULL && mch_isdir(p)) return p; vim_free(p); return NULL; } /* * If the string between "p" and "pend" ends in "name/", return "pend" minus * the length of "name/". Otherwise return "pend". */ static char_u * remove_tail(char_u *p, char_u *pend, char_u *name) { int len = (int)STRLEN(name) + 1; char_u *newend = pend - len; if (newend >= p && fnamencmp(newend, name, len - 1) == 0 && (newend == p || after_pathsep(p, newend))) return newend; return pend; } #if defined(FEAT_EVAL) || defined(PROTO) void vim_unsetenv(char_u *var) { #ifdef HAVE_UNSETENV unsetenv((char *)var); #else vim_setenv(var, (char_u *)""); #endif } #endif /* * Our portable version of setenv. */ void vim_setenv(char_u *name, char_u *val) { #ifdef HAVE_SETENV mch_setenv((char *)name, (char *)val, 1); #else char_u *envbuf; /* * Putenv does not copy the string, it has to remain * valid. The allocated memory will never be freed. */ envbuf = alloc((unsigned)(STRLEN(name) + STRLEN(val) + 2)); if (envbuf != NULL) { sprintf((char *)envbuf, "%s=%s", name, val); putenv((char *)envbuf); } #endif #ifdef FEAT_GETTEXT /* * When setting $VIMRUNTIME adjust the directory to find message * translations to $VIMRUNTIME/lang. */ if (*val != NUL && STRICMP(name, "VIMRUNTIME") == 0) { char_u *buf = concat_str(val, (char_u *)"/lang"); if (buf != NULL) { bindtextdomain(VIMPACKAGE, (char *)buf); vim_free(buf); } } #endif } #if defined(FEAT_CMDL_COMPL) || defined(PROTO) /* * Function given to ExpandGeneric() to obtain an environment variable name. */ char_u * get_env_name( expand_T *xp UNUSED, int idx) { # if defined(AMIGA) /* * No environ[] on the Amiga. */ return NULL; # else # ifndef __WIN32__ /* Borland C++ 5.2 has this in a header file. */ extern char **environ; # endif # define ENVNAMELEN 100 static char_u name[ENVNAMELEN]; char_u *str; int n; str = (char_u *)environ[idx]; if (str == NULL) return NULL; for (n = 0; n < ENVNAMELEN - 1; ++n) { if (str[n] == '=' || str[n] == NUL) break; name[n] = str[n]; } name[n] = NUL; return name; # endif } /* * Add a user name to the list of users in ga_users. * Do nothing if user name is NULL or empty. */ static void add_user(char_u *user, int need_copy) { char_u *user_copy = (user != NULL && need_copy) ? vim_strsave(user) : user; if (user_copy == NULL || *user_copy == NUL || ga_grow(&ga_users, 1) == FAIL) { if (need_copy) vim_free(user); return; } ((char_u **)(ga_users.ga_data))[ga_users.ga_len++] = user_copy; } /* * Find all user names for user completion. * Done only once and then cached. */ static void init_users(void) { static int lazy_init_done = FALSE; if (lazy_init_done) return; lazy_init_done = TRUE; ga_init2(&ga_users, sizeof(char_u *), 20); # if defined(HAVE_GETPWENT) && defined(HAVE_PWD_H) { struct passwd* pw; setpwent(); while ((pw = getpwent()) != NULL) add_user((char_u *)pw->pw_name, TRUE); endpwent(); } # elif defined(MSWIN) { DWORD nusers = 0, ntotal = 0, i; PUSER_INFO_0 uinfo; if (NetUserEnum(NULL, 0, 0, (LPBYTE *) &uinfo, MAX_PREFERRED_LENGTH, &nusers, &ntotal, NULL) == NERR_Success) { for (i = 0; i < nusers; i++) add_user(utf16_to_enc(uinfo[i].usri0_name, NULL), FALSE); NetApiBufferFree(uinfo); } } # endif # if defined(HAVE_GETPWNAM) { char_u *user_env = mch_getenv((char_u *)"USER"); // The $USER environment variable may be a valid remote user name (NIS, // LDAP) not already listed by getpwent(), as getpwent() only lists // local user names. If $USER is not already listed, check whether it // is a valid remote user name using getpwnam() and if it is, add it to // the list of user names. if (user_env != NULL && *user_env != NUL) { int i; for (i = 0; i < ga_users.ga_len; i++) { char_u *local_user = ((char_u **)ga_users.ga_data)[i]; if (STRCMP(local_user, user_env) == 0) break; } if (i == ga_users.ga_len) { struct passwd *pw = getpwnam((char *)user_env); if (pw != NULL) add_user((char_u *)pw->pw_name, TRUE); } } } # endif } /* * Function given to ExpandGeneric() to obtain an user names. */ char_u* get_users(expand_T *xp UNUSED, int idx) { init_users(); if (idx < ga_users.ga_len) return ((char_u **)ga_users.ga_data)[idx]; return NULL; } /* * Check whether name matches a user name. Return: * 0 if name does not match any user name. * 1 if name partially matches the beginning of a user name. * 2 is name fully matches a user name. */ int match_user(char_u *name) { int i; int n = (int)STRLEN(name); int result = 0; init_users(); for (i = 0; i < ga_users.ga_len; i++) { if (STRCMP(((char_u **)ga_users.ga_data)[i], name) == 0) return 2; /* full match */ if (STRNCMP(((char_u **)ga_users.ga_data)[i], name, n) == 0) result = 1; /* partial match */ } return result; } #endif /* * Replace home directory by "~" in each space or comma separated file name in * 'src'. * If anything fails (except when out of space) dst equals src. */ void home_replace( buf_T *buf, /* when not NULL, check for help files */ char_u *src, /* input file name */ char_u *dst, /* where to put the result */ int dstlen, /* maximum length of the result */ int one) /* if TRUE, only replace one file name, include spaces and commas in the file name. */ { size_t dirlen = 0, envlen = 0; size_t len; char_u *homedir_env, *homedir_env_orig; char_u *p; if (src == NULL) { *dst = NUL; return; } /* * If the file is a help file, remove the path completely. */ if (buf != NULL && buf->b_help) { vim_snprintf((char *)dst, dstlen, "%s", gettail(src)); return; } /* * We check both the value of the $HOME environment variable and the * "real" home directory. */ if (homedir != NULL) dirlen = STRLEN(homedir); #ifdef VMS homedir_env_orig = homedir_env = mch_getenv((char_u *)"SYS$LOGIN"); #else homedir_env_orig = homedir_env = mch_getenv((char_u *)"HOME"); #endif #ifdef MSWIN if (homedir_env == NULL) homedir_env_orig = homedir_env = mch_getenv((char_u *)"USERPROFILE"); #endif /* Empty is the same as not set. */ if (homedir_env != NULL && *homedir_env == NUL) homedir_env = NULL; #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) if (homedir_env != NULL && *homedir_env == '~') { int usedlen = 0; int flen; char_u *fbuf = NULL; flen = (int)STRLEN(homedir_env); (void)modify_fname((char_u *)":p", FALSE, &usedlen, &homedir_env, &fbuf, &flen); flen = (int)STRLEN(homedir_env); if (flen > 0 && vim_ispathsep(homedir_env[flen - 1])) /* Remove the trailing / that is added to a directory. */ homedir_env[flen - 1] = NUL; } #endif if (homedir_env != NULL) envlen = STRLEN(homedir_env); if (!one) src = skipwhite(src); while (*src && dstlen > 0) { /* * Here we are at the beginning of a file name. * First, check to see if the beginning of the file name matches * $HOME or the "real" home directory. Check that there is a '/' * after the match (so that if e.g. the file is "/home/pieter/bla", * and the home directory is "/home/piet", the file does not end up * as "~er/bla" (which would seem to indicate the file "bla" in user * er's home directory)). */ p = homedir; len = dirlen; for (;;) { if ( len && fnamencmp(src, p, len) == 0 && (vim_ispathsep(src[len]) || (!one && (src[len] == ',' || src[len] == ' ')) || src[len] == NUL)) { src += len; if (--dstlen > 0) *dst++ = '~'; /* * If it's just the home directory, add "/". */ if (!vim_ispathsep(src[0]) && --dstlen > 0) *dst++ = '/'; break; } if (p == homedir_env) break; p = homedir_env; len = envlen; } /* if (!one) skip to separator: space or comma */ while (*src && (one || (*src != ',' && *src != ' ')) && --dstlen > 0) *dst++ = *src++; /* skip separator */ while ((*src == ' ' || *src == ',') && --dstlen > 0) *dst++ = *src++; } /* if (dstlen == 0) out of space, what to do??? */ *dst = NUL; if (homedir_env != homedir_env_orig) vim_free(homedir_env); } /* * Like home_replace, store the replaced string in allocated memory. * When something fails, NULL is returned. */ char_u * home_replace_save( buf_T *buf, /* when not NULL, check for help files */ char_u *src) /* input file name */ { char_u *dst; unsigned len; len = 3; /* space for "~/" and trailing NUL */ if (src != NULL) /* just in case */ len += (unsigned)STRLEN(src); dst = alloc(len); if (dst != NULL) home_replace(buf, src, dst, len, TRUE); return dst; } /* * Compare two file names and return: * FPC_SAME if they both exist and are the same file. * FPC_SAMEX if they both don't exist and have the same file name. * FPC_DIFF if they both exist and are different files. * FPC_NOTX if they both don't exist. * FPC_DIFFX if one of them doesn't exist. * For the first name environment variables are expanded */ int fullpathcmp( char_u *s1, char_u *s2, int checkname) /* when both don't exist, check file names */ { #ifdef UNIX char_u exp1[MAXPATHL]; char_u full1[MAXPATHL]; char_u full2[MAXPATHL]; stat_T st1, st2; int r1, r2; expand_env(s1, exp1, MAXPATHL); r1 = mch_stat((char *)exp1, &st1); r2 = mch_stat((char *)s2, &st2); if (r1 != 0 && r2 != 0) { /* if mch_stat() doesn't work, may compare the names */ if (checkname) { if (fnamecmp(exp1, s2) == 0) return FPC_SAMEX; r1 = vim_FullName(exp1, full1, MAXPATHL, FALSE); r2 = vim_FullName(s2, full2, MAXPATHL, FALSE); if (r1 == OK && r2 == OK && fnamecmp(full1, full2) == 0) return FPC_SAMEX; } return FPC_NOTX; } if (r1 != 0 || r2 != 0) return FPC_DIFFX; if (st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino) return FPC_SAME; return FPC_DIFF; #else char_u *exp1; /* expanded s1 */ char_u *full1; /* full path of s1 */ char_u *full2; /* full path of s2 */ int retval = FPC_DIFF; int r1, r2; /* allocate one buffer to store three paths (alloc()/free() is slow!) */ if ((exp1 = alloc(MAXPATHL * 3)) != NULL) { full1 = exp1 + MAXPATHL; full2 = full1 + MAXPATHL; expand_env(s1, exp1, MAXPATHL); r1 = vim_FullName(exp1, full1, MAXPATHL, FALSE); r2 = vim_FullName(s2, full2, MAXPATHL, FALSE); /* If vim_FullName() fails, the file probably doesn't exist. */ if (r1 != OK && r2 != OK) { if (checkname && fnamecmp(exp1, s2) == 0) retval = FPC_SAMEX; else retval = FPC_NOTX; } else if (r1 != OK || r2 != OK) retval = FPC_DIFFX; else if (fnamecmp(full1, full2)) retval = FPC_DIFF; else retval = FPC_SAME; vim_free(exp1); } return retval; #endif } /* * Get the tail of a path: the file name. * When the path ends in a path separator the tail is the NUL after it. * Fail safe: never returns NULL. */ char_u * gettail(char_u *fname) { char_u *p1, *p2; if (fname == NULL) return (char_u *)""; for (p1 = p2 = get_past_head(fname); *p2; ) /* find last part of path */ { if (vim_ispathsep_nocolon(*p2)) p1 = p2 + 1; MB_PTR_ADV(p2); } return p1; } /* * Get pointer to tail of "fname", including path separators. Putting a NUL * here leaves the directory name. Takes care of "c:/" and "//". * Always returns a valid pointer. */ char_u * gettail_sep(char_u *fname) { char_u *p; char_u *t; p = get_past_head(fname); /* don't remove the '/' from "c:/file" */ t = gettail(fname); while (t > p && after_pathsep(fname, t)) --t; #ifdef VMS /* path separator is part of the path */ ++t; #endif return t; } /* * get the next path component (just after the next path separator). */ char_u * getnextcomp(char_u *fname) { while (*fname && !vim_ispathsep(*fname)) MB_PTR_ADV(fname); if (*fname) ++fname; return fname; } /* * Get a pointer to one character past the head of a path name. * Unix: after "/"; DOS: after "c:\"; Amiga: after "disk:/"; Mac: no head. * If there is no head, path is returned. */ char_u * get_past_head(char_u *path) { char_u *retval; #if defined(MSWIN) /* may skip "c:" */ if (isalpha(path[0]) && path[1] == ':') retval = path + 2; else retval = path; #else # if defined(AMIGA) /* may skip "label:" */ retval = vim_strchr(path, ':'); if (retval == NULL) retval = path; # else /* Unix */ retval = path; # endif #endif while (vim_ispathsep(*retval)) ++retval; return retval; } /* * Return TRUE if 'c' is a path separator. * Note that for MS-Windows this includes the colon. */ int vim_ispathsep(int c) { #ifdef UNIX return (c == '/'); /* UNIX has ':' inside file names */ #else # ifdef BACKSLASH_IN_FILENAME return (c == ':' || c == '/' || c == '\\'); # else # ifdef VMS /* server"user passwd"::device:[full.path.name]fname.extension;version" */ return (c == ':' || c == '[' || c == ']' || c == '/' || c == '<' || c == '>' || c == '"' ); # else return (c == ':' || c == '/'); # endif /* VMS */ # endif #endif } /* * Like vim_ispathsep(c), but exclude the colon for MS-Windows. */ int vim_ispathsep_nocolon(int c) { return vim_ispathsep(c) #ifdef BACKSLASH_IN_FILENAME && c != ':' #endif ; } /* * Shorten the path of a file from "~/foo/../.bar/fname" to "~/f/../.b/fname" * It's done in-place. */ void shorten_dir(char_u *str) { char_u *tail, *s, *d; int skip = FALSE; tail = gettail(str); d = str; for (s = str; ; ++s) { if (s >= tail) /* copy the whole tail */ { *d++ = *s; if (*s == NUL) break; } else if (vim_ispathsep(*s)) /* copy '/' and next char */ { *d++ = *s; skip = FALSE; } else if (!skip) { *d++ = *s; /* copy next char */ if (*s != '~' && *s != '.') /* and leading "~" and "." */ skip = TRUE; if (has_mbyte) { int l = mb_ptr2len(s); while (--l > 0) *d++ = *++s; } } } } /* * Return TRUE if the directory of "fname" exists, FALSE otherwise. * Also returns TRUE if there is no directory name. * "fname" must be writable!. */ int dir_of_file_exists(char_u *fname) { char_u *p; int c; int retval; p = gettail_sep(fname); if (p == fname) return TRUE; c = *p; *p = NUL; retval = mch_isdir(fname); *p = c; return retval; } /* * Versions of fnamecmp() and fnamencmp() that handle '/' and '\' equally * and deal with 'fileignorecase'. */ int vim_fnamecmp(char_u *x, char_u *y) { #ifdef BACKSLASH_IN_FILENAME return vim_fnamencmp(x, y, MAXPATHL); #else if (p_fic) return MB_STRICMP(x, y); return STRCMP(x, y); #endif } int vim_fnamencmp(char_u *x, char_u *y, size_t len) { #ifdef BACKSLASH_IN_FILENAME char_u *px = x; char_u *py = y; int cx = NUL; int cy = NUL; while (len > 0) { cx = PTR2CHAR(px); cy = PTR2CHAR(py); if (cx == NUL || cy == NUL || ((p_fic ? MB_TOLOWER(cx) != MB_TOLOWER(cy) : cx != cy) && !(cx == '/' && cy == '\\') && !(cx == '\\' && cy == '/'))) break; len -= MB_PTR2LEN(px); px += MB_PTR2LEN(px); py += MB_PTR2LEN(py); } if (len == 0) return 0; return (cx - cy); #else if (p_fic) return MB_STRNICMP(x, y, len); return STRNCMP(x, y, len); #endif } /* * Concatenate file names fname1 and fname2 into allocated memory. * Only add a '/' or '\\' when 'sep' is TRUE and it is necessary. */ char_u * concat_fnames(char_u *fname1, char_u *fname2, int sep) { char_u *dest; dest = alloc((unsigned)(STRLEN(fname1) + STRLEN(fname2) + 3)); if (dest != NULL) { STRCPY(dest, fname1); if (sep) add_pathsep(dest); STRCAT(dest, fname2); } return dest; } /* * Concatenate two strings and return the result in allocated memory. * Returns NULL when out of memory. */ char_u * concat_str(char_u *str1, char_u *str2) { char_u *dest; size_t l = STRLEN(str1); dest = alloc((unsigned)(l + STRLEN(str2) + 1L)); if (dest != NULL) { STRCPY(dest, str1); STRCPY(dest + l, str2); } return dest; } /* * Add a path separator to a file name, unless it already ends in a path * separator. */ void add_pathsep(char_u *p) { if (*p != NUL && !after_pathsep(p, p + STRLEN(p))) STRCAT(p, PATHSEPSTR); } /* * FullName_save - Make an allocated copy of a full file name. * Returns NULL when out of memory. */ char_u * FullName_save( char_u *fname, int force) /* force expansion, even when it already looks * like a full path name */ { char_u *buf; char_u *new_fname = NULL; if (fname == NULL) return NULL; buf = alloc((unsigned)MAXPATHL); if (buf != NULL) { if (vim_FullName(fname, buf, MAXPATHL, force) != FAIL) new_fname = vim_strsave(buf); else new_fname = vim_strsave(fname); vim_free(buf); } return new_fname; } void prepare_to_exit(void) { #if defined(SIGHUP) && defined(SIG_IGN) /* Ignore SIGHUP, because a dropped connection causes a read error, which * makes Vim exit and then handling SIGHUP causes various reentrance * problems. */ signal(SIGHUP, SIG_IGN); #endif #ifdef FEAT_GUI if (gui.in_use) { gui.dying = TRUE; out_trash(); /* trash any pending output */ } else #endif { windgoto((int)Rows - 1, 0); /* * Switch terminal mode back now, so messages end up on the "normal" * screen (if there are two screens). */ settmode(TMODE_COOK); stoptermcap(); out_flush(); } } /* * Preserve files and exit. * When called IObuff must contain a message. * NOTE: This may be called from deathtrap() in a signal handler, avoid unsafe * functions, such as allocating memory. */ void preserve_exit(void) { buf_T *buf; prepare_to_exit(); /* Setting this will prevent free() calls. That avoids calling free() * recursively when free() was invoked with a bad pointer. */ really_exiting = TRUE; out_str(IObuff); screen_start(); /* don't know where cursor is now */ out_flush(); ml_close_notmod(); /* close all not-modified buffers */ FOR_ALL_BUFFERS(buf) { if (buf->b_ml.ml_mfp != NULL && buf->b_ml.ml_mfp->mf_fname != NULL) { OUT_STR("Vim: preserving files...\n"); screen_start(); /* don't know where cursor is now */ out_flush(); ml_sync_all(FALSE, FALSE); /* preserve all swap files */ break; } } ml_close_all(FALSE); /* close all memfiles, without deleting */ OUT_STR("Vim: Finished.\n"); getout(1); } /* * return TRUE if "fname" exists. */ int vim_fexists(char_u *fname) { stat_T st; if (mch_stat((char *)fname, &st)) return FALSE; return TRUE; } /* * Check for CTRL-C pressed, but only once in a while. * Should be used instead of ui_breakcheck() for functions that check for * each line in the file. Calling ui_breakcheck() each time takes too much * time, because it can be a system call. */ #ifndef BREAKCHECK_SKIP # ifdef FEAT_GUI /* assume the GUI only runs on fast computers */ # define BREAKCHECK_SKIP 200 # else # define BREAKCHECK_SKIP 32 # endif #endif static int breakcheck_count = 0; void line_breakcheck(void) { if (++breakcheck_count >= BREAKCHECK_SKIP) { breakcheck_count = 0; ui_breakcheck(); } } /* * Like line_breakcheck() but check 10 times less often. */ void fast_breakcheck(void) { if (++breakcheck_count >= BREAKCHECK_SKIP * 10) { breakcheck_count = 0; ui_breakcheck(); } } /* * Invoke expand_wildcards() for one pattern. * Expand items like "%:h" before the expansion. * Returns OK or FAIL. */ int expand_wildcards_eval( char_u **pat, /* pointer to input pattern */ int *num_file, /* resulting number of files */ char_u ***file, /* array of resulting files */ int flags) /* EW_DIR, etc. */ { int ret = FAIL; char_u *eval_pat = NULL; char_u *exp_pat = *pat; char *ignored_msg; int usedlen; if (*exp_pat == '%' || *exp_pat == '#' || *exp_pat == '<') { ++emsg_off; eval_pat = eval_vars(exp_pat, exp_pat, &usedlen, NULL, &ignored_msg, NULL); --emsg_off; if (eval_pat != NULL) exp_pat = concat_str(eval_pat, exp_pat + usedlen); } if (exp_pat != NULL) ret = expand_wildcards(1, &exp_pat, num_file, file, flags); if (eval_pat != NULL) { vim_free(exp_pat); vim_free(eval_pat); } return ret; } /* * Expand wildcards. Calls gen_expand_wildcards() and removes files matching * 'wildignore'. * Returns OK or FAIL. When FAIL then "num_files" won't be set. */ int expand_wildcards( int num_pat, /* number of input patterns */ char_u **pat, /* array of input patterns */ int *num_files, /* resulting number of files */ char_u ***files, /* array of resulting files */ int flags) /* EW_DIR, etc. */ { int retval; int i, j; char_u *p; int non_suf_match; /* number without matching suffix */ retval = gen_expand_wildcards(num_pat, pat, num_files, files, flags); /* When keeping all matches, return here */ if ((flags & EW_KEEPALL) || retval == FAIL) return retval; #ifdef FEAT_WILDIGN /* * Remove names that match 'wildignore'. */ if (*p_wig) { char_u *ffname; /* check all files in (*files)[] */ for (i = 0; i < *num_files; ++i) { ffname = FullName_save((*files)[i], FALSE); if (ffname == NULL) /* out of memory */ break; # ifdef VMS vms_remove_version(ffname); # endif if (match_file_list(p_wig, (*files)[i], ffname)) { /* remove this matching file from the list */ vim_free((*files)[i]); for (j = i; j + 1 < *num_files; ++j) (*files)[j] = (*files)[j + 1]; --*num_files; --i; } vim_free(ffname); } /* If the number of matches is now zero, we fail. */ if (*num_files == 0) { VIM_CLEAR(*files); return FAIL; } } #endif /* * Move the names where 'suffixes' match to the end. */ if (*num_files > 1) { non_suf_match = 0; for (i = 0; i < *num_files; ++i) { if (!match_suffix((*files)[i])) { /* * Move the name without matching suffix to the front * of the list. */ p = (*files)[i]; for (j = i; j > non_suf_match; --j) (*files)[j] = (*files)[j - 1]; (*files)[non_suf_match++] = p; } } } return retval; } /* * Return TRUE if "fname" matches with an entry in 'suffixes'. */ int match_suffix(char_u *fname) { int fnamelen, setsuflen; char_u *setsuf; #define MAXSUFLEN 30 /* maximum length of a file suffix */ char_u suf_buf[MAXSUFLEN]; fnamelen = (int)STRLEN(fname); setsuflen = 0; for (setsuf = p_su; *setsuf; ) { setsuflen = copy_option_part(&setsuf, suf_buf, MAXSUFLEN, ".,"); if (setsuflen == 0) { char_u *tail = gettail(fname); /* empty entry: match name without a '.' */ if (vim_strchr(tail, '.') == NULL) { setsuflen = 1; break; } } else { if (fnamelen >= setsuflen && fnamencmp(suf_buf, fname + fnamelen - setsuflen, (size_t)setsuflen) == 0) break; setsuflen = 0; } } return (setsuflen != 0); } #if !defined(NO_EXPANDPATH) || defined(PROTO) # ifdef VIM_BACKTICK static int vim_backtick(char_u *p); static int expand_backtick(garray_T *gap, char_u *pat, int flags); # endif # if defined(MSWIN) /* * File name expansion code for MS-DOS, Win16 and Win32. It's here because * it's shared between these systems. */ # if defined(PROTO) # define _cdecl # else # ifdef __BORLANDC__ # define _cdecl _RTLENTRYF # endif # endif /* * comparison function for qsort in dos_expandpath() */ static int _cdecl pstrcmp(const void *a, const void *b) { return (pathcmp(*(char **)a, *(char **)b, -1)); } /* * Recursively expand one path component into all matching files and/or * directories. Adds matches to "gap". Handles "*", "?", "[a-z]", "**", etc. * Return the number of matches found. * "path" has backslashes before chars that are not to be expanded, starting * at "path[wildoff]". * Return the number of matches found. * NOTE: much of this is identical to unix_expandpath(), keep in sync! */ static int dos_expandpath( garray_T *gap, char_u *path, int wildoff, int flags, /* EW_* flags */ int didstar) /* expanded "**" once already */ { char_u *buf; char_u *path_end; char_u *p, *s, *e; int start_len = gap->ga_len; char_u *pat; regmatch_T regmatch; int starts_with_dot; int matches; int len; int starstar = FALSE; static int stardepth = 0; /* depth for "**" expansion */ WIN32_FIND_DATA fb; HANDLE hFind = (HANDLE)0; WIN32_FIND_DATAW wfb; WCHAR *wn = NULL; /* UCS-2 name, NULL when not used. */ char_u *matchname; int ok; /* Expanding "**" may take a long time, check for CTRL-C. */ if (stardepth > 0) { ui_breakcheck(); if (got_int) return 0; } // Make room for file name. When doing encoding conversion the actual // length may be quite a bit longer, thus use the maximum possible length. buf = alloc((int)MAXPATHL); if (buf == NULL) return 0; /* * Find the first part in the path name that contains a wildcard or a ~1. * Copy it into buf, including the preceding characters. */ p = buf; s = buf; e = NULL; path_end = path; while (*path_end != NUL) { /* May ignore a wildcard that has a backslash before it; it will * be removed by rem_backslash() or file_pat_to_reg_pat() below. */ if (path_end >= path + wildoff && rem_backslash(path_end)) *p++ = *path_end++; else if (*path_end == '\\' || *path_end == ':' || *path_end == '/') { if (e != NULL) break; s = p + 1; } else if (path_end >= path + wildoff && vim_strchr((char_u *)"*?[~", *path_end) != NULL) e = p; if (has_mbyte) { len = (*mb_ptr2len)(path_end); STRNCPY(p, path_end, len); p += len; path_end += len; } else *p++ = *path_end++; } e = p; *e = NUL; /* now we have one wildcard component between s and e */ /* Remove backslashes between "wildoff" and the start of the wildcard * component. */ for (p = buf + wildoff; p < s; ++p) if (rem_backslash(p)) { STRMOVE(p, p + 1); --e; --s; } /* Check for "**" between "s" and "e". */ for (p = s; p < e; ++p) if (p[0] == '*' && p[1] == '*') starstar = TRUE; starts_with_dot = *s == '.'; pat = file_pat_to_reg_pat(s, e, NULL, FALSE); if (pat == NULL) { vim_free(buf); return 0; } /* compile the regexp into a program */ if (flags & (EW_NOERROR | EW_NOTWILD)) ++emsg_silent; regmatch.rm_ic = TRUE; /* Always ignore case */ regmatch.regprog = vim_regcomp(pat, RE_MAGIC); if (flags & (EW_NOERROR | EW_NOTWILD)) --emsg_silent; vim_free(pat); if (regmatch.regprog == NULL && (flags & EW_NOTWILD) == 0) { vim_free(buf); return 0; } /* remember the pattern or file name being looked for */ matchname = vim_strsave(s); /* If "**" is by itself, this is the first time we encounter it and more * is following then find matches without any directory. */ if (!didstar && stardepth < 100 && starstar && e - s == 2 && *path_end == '/') { STRCPY(s, path_end + 1); ++stardepth; (void)dos_expandpath(gap, buf, (int)(s - buf), flags, TRUE); --stardepth; } /* Scan all files in the directory with "dir/ *.*" */ STRCPY(s, "*.*"); if (enc_codepage >= 0 && (int)GetACP() != enc_codepage) { /* The active codepage differs from 'encoding'. Attempt using the * wide function. If it fails because it is not implemented fall back * to the non-wide version (for Windows 98) */ wn = enc_to_utf16(buf, NULL); if (wn != NULL) { hFind = FindFirstFileW(wn, &wfb); if (hFind == INVALID_HANDLE_VALUE && GetLastError() == ERROR_CALL_NOT_IMPLEMENTED) VIM_CLEAR(wn); } } if (wn == NULL) hFind = FindFirstFile((LPCSTR)buf, &fb); ok = (hFind != INVALID_HANDLE_VALUE); while (ok) { if (wn != NULL) p = utf16_to_enc(wfb.cFileName, NULL); /* p is allocated here */ else p = (char_u *)fb.cFileName; /* Ignore entries starting with a dot, unless when asked for. Accept * all entries found with "matchname". */ if ((p[0] != '.' || starts_with_dot || ((flags & EW_DODOT) && p[1] != NUL && (p[1] != '.' || p[2] != NUL))) && (matchname == NULL || (regmatch.regprog != NULL && vim_regexec(®match, p, (colnr_T)0)) || ((flags & EW_NOTWILD) && fnamencmp(path + (s - buf), p, e - s) == 0))) { STRCPY(s, p); len = (int)STRLEN(buf); if (starstar && stardepth < 100) { /* For "**" in the pattern first go deeper in the tree to * find matches. */ STRCPY(buf + len, "/**"); STRCPY(buf + len + 3, path_end); ++stardepth; (void)dos_expandpath(gap, buf, len + 1, flags, TRUE); --stardepth; } STRCPY(buf + len, path_end); if (mch_has_exp_wildcard(path_end)) { /* need to expand another component of the path */ /* remove backslashes for the remaining components only */ (void)dos_expandpath(gap, buf, len + 1, flags, FALSE); } else { /* no more wildcards, check if there is a match */ /* remove backslashes for the remaining components only */ if (*path_end != 0) backslash_halve(buf + len + 1); if (mch_getperm(buf) >= 0) /* add existing file */ addfile(gap, buf, flags); } } if (wn != NULL) { vim_free(p); ok = FindNextFileW(hFind, &wfb); } else ok = FindNextFile(hFind, &fb); /* If no more matches and no match was used, try expanding the name * itself. Finds the long name of a short filename. */ if (!ok && matchname != NULL && gap->ga_len == start_len) { STRCPY(s, matchname); FindClose(hFind); if (wn != NULL) { vim_free(wn); wn = enc_to_utf16(buf, NULL); if (wn != NULL) hFind = FindFirstFileW(wn, &wfb); } if (wn == NULL) hFind = FindFirstFile((LPCSTR)buf, &fb); ok = (hFind != INVALID_HANDLE_VALUE); VIM_CLEAR(matchname); } } FindClose(hFind); vim_free(wn); vim_free(buf); vim_regfree(regmatch.regprog); vim_free(matchname); matches = gap->ga_len - start_len; if (matches > 0) qsort(((char_u **)gap->ga_data) + start_len, (size_t)matches, sizeof(char_u *), pstrcmp); return matches; } int mch_expandpath( garray_T *gap, char_u *path, int flags) /* EW_* flags */ { return dos_expandpath(gap, path, 0, flags, FALSE); } # endif // MSWIN #if (defined(UNIX) && !defined(VMS)) || defined(USE_UNIXFILENAME) \ || defined(PROTO) /* * Unix style wildcard expansion code. * It's here because it's used both for Unix and Mac. */ static int pstrcmp(const void *a, const void *b) { return (pathcmp(*(char **)a, *(char **)b, -1)); } /* * Recursively expand one path component into all matching files and/or * directories. Adds matches to "gap". Handles "*", "?", "[a-z]", "**", etc. * "path" has backslashes before chars that are not to be expanded, starting * at "path + wildoff". * Return the number of matches found. * NOTE: much of this is identical to dos_expandpath(), keep in sync! */ int unix_expandpath( garray_T *gap, char_u *path, int wildoff, int flags, /* EW_* flags */ int didstar) /* expanded "**" once already */ { char_u *buf; char_u *path_end; char_u *p, *s, *e; int start_len = gap->ga_len; char_u *pat; regmatch_T regmatch; int starts_with_dot; int matches; int len; int starstar = FALSE; static int stardepth = 0; /* depth for "**" expansion */ DIR *dirp; struct dirent *dp; /* Expanding "**" may take a long time, check for CTRL-C. */ if (stardepth > 0) { ui_breakcheck(); if (got_int) return 0; } /* make room for file name */ buf = alloc((int)STRLEN(path) + BASENAMELEN + 5); if (buf == NULL) return 0; /* * Find the first part in the path name that contains a wildcard. * When EW_ICASE is set every letter is considered to be a wildcard. * Copy it into "buf", including the preceding characters. */ p = buf; s = buf; e = NULL; path_end = path; while (*path_end != NUL) { /* May ignore a wildcard that has a backslash before it; it will * be removed by rem_backslash() or file_pat_to_reg_pat() below. */ if (path_end >= path + wildoff && rem_backslash(path_end)) *p++ = *path_end++; else if (*path_end == '/') { if (e != NULL) break; s = p + 1; } else if (path_end >= path + wildoff && (vim_strchr((char_u *)"*?[{~$", *path_end) != NULL || (!p_fic && (flags & EW_ICASE) && isalpha(PTR2CHAR(path_end))))) e = p; if (has_mbyte) { len = (*mb_ptr2len)(path_end); STRNCPY(p, path_end, len); p += len; path_end += len; } else *p++ = *path_end++; } e = p; *e = NUL; /* Now we have one wildcard component between "s" and "e". */ /* Remove backslashes between "wildoff" and the start of the wildcard * component. */ for (p = buf + wildoff; p < s; ++p) if (rem_backslash(p)) { STRMOVE(p, p + 1); --e; --s; } /* Check for "**" between "s" and "e". */ for (p = s; p < e; ++p) if (p[0] == '*' && p[1] == '*') starstar = TRUE; /* convert the file pattern to a regexp pattern */ starts_with_dot = *s == '.'; pat = file_pat_to_reg_pat(s, e, NULL, FALSE); if (pat == NULL) { vim_free(buf); return 0; } /* compile the regexp into a program */ if (flags & EW_ICASE) regmatch.rm_ic = TRUE; /* 'wildignorecase' set */ else regmatch.rm_ic = p_fic; /* ignore case when 'fileignorecase' is set */ if (flags & (EW_NOERROR | EW_NOTWILD)) ++emsg_silent; regmatch.regprog = vim_regcomp(pat, RE_MAGIC); if (flags & (EW_NOERROR | EW_NOTWILD)) --emsg_silent; vim_free(pat); if (regmatch.regprog == NULL && (flags & EW_NOTWILD) == 0) { vim_free(buf); return 0; } /* If "**" is by itself, this is the first time we encounter it and more * is following then find matches without any directory. */ if (!didstar && stardepth < 100 && starstar && e - s == 2 && *path_end == '/') { STRCPY(s, path_end + 1); ++stardepth; (void)unix_expandpath(gap, buf, (int)(s - buf), flags, TRUE); --stardepth; } /* open the directory for scanning */ *s = NUL; dirp = opendir(*buf == NUL ? "." : (char *)buf); /* Find all matching entries */ if (dirp != NULL) { for (;;) { dp = readdir(dirp); if (dp == NULL) break; if ((dp->d_name[0] != '.' || starts_with_dot || ((flags & EW_DODOT) && dp->d_name[1] != NUL && (dp->d_name[1] != '.' || dp->d_name[2] != NUL))) && ((regmatch.regprog != NULL && vim_regexec(®match, (char_u *)dp->d_name, (colnr_T)0)) || ((flags & EW_NOTWILD) && fnamencmp(path + (s - buf), dp->d_name, e - s) == 0))) { STRCPY(s, dp->d_name); len = STRLEN(buf); if (starstar && stardepth < 100) { /* For "**" in the pattern first go deeper in the tree to * find matches. */ STRCPY(buf + len, "/**"); STRCPY(buf + len + 3, path_end); ++stardepth; (void)unix_expandpath(gap, buf, len + 1, flags, TRUE); --stardepth; } STRCPY(buf + len, path_end); if (mch_has_exp_wildcard(path_end)) /* handle more wildcards */ { /* need to expand another component of the path */ /* remove backslashes for the remaining components only */ (void)unix_expandpath(gap, buf, len + 1, flags, FALSE); } else { stat_T sb; /* no more wildcards, check if there is a match */ /* remove backslashes for the remaining components only */ if (*path_end != NUL) backslash_halve(buf + len + 1); /* add existing file or symbolic link */ if ((flags & EW_ALLLINKS) ? mch_lstat((char *)buf, &sb) >= 0 : mch_getperm(buf) >= 0) { #ifdef MACOS_CONVERT size_t precomp_len = STRLEN(buf)+1; char_u *precomp_buf = mac_precompose_path(buf, precomp_len, &precomp_len); if (precomp_buf) { mch_memmove(buf, precomp_buf, precomp_len); vim_free(precomp_buf); } #endif addfile(gap, buf, flags); } } } } closedir(dirp); } vim_free(buf); vim_regfree(regmatch.regprog); matches = gap->ga_len - start_len; if (matches > 0) qsort(((char_u **)gap->ga_data) + start_len, matches, sizeof(char_u *), pstrcmp); return matches; } #endif #if defined(FEAT_SEARCHPATH) || defined(FEAT_CMDL_COMPL) || defined(PROTO) /* * Sort "gap" and remove duplicate entries. "gap" is expected to contain a * list of file names in allocated memory. */ void remove_duplicates(garray_T *gap) { int i; int j; char_u **fnames = (char_u **)gap->ga_data; sort_strings(fnames, gap->ga_len); for (i = gap->ga_len - 1; i > 0; --i) if (fnamecmp(fnames[i - 1], fnames[i]) == 0) { vim_free(fnames[i]); for (j = i + 1; j < gap->ga_len; ++j) fnames[j - 1] = fnames[j]; --gap->ga_len; } } #endif /* * Return TRUE if "p" contains what looks like an environment variable. * Allowing for escaping. */ static int has_env_var(char_u *p) { for ( ; *p; MB_PTR_ADV(p)) { if (*p == '\\' && p[1] != NUL) ++p; else if (vim_strchr((char_u *) #if defined(MSWIN) "$%" #else "$" #endif , *p) != NULL) return TRUE; } return FALSE; } #ifdef SPECIAL_WILDCHAR /* * Return TRUE if "p" contains a special wildcard character, one that Vim * cannot expand, requires using a shell. */ static int has_special_wildchar(char_u *p) { for ( ; *p; MB_PTR_ADV(p)) { /* Allow for escaping. */ if (*p == '\\' && p[1] != NUL) ++p; else if (vim_strchr((char_u *)SPECIAL_WILDCHAR, *p) != NULL) return TRUE; } return FALSE; } #endif /* * Generic wildcard expansion code. * * Characters in "pat" that should not be expanded must be preceded with a * backslash. E.g., "/path\ with\ spaces/my\*star*" * * Return FAIL when no single file was found. In this case "num_file" is not * set, and "file" may contain an error message. * Return OK when some files found. "num_file" is set to the number of * matches, "file" to the array of matches. Call FreeWild() later. */ int gen_expand_wildcards( int num_pat, /* number of input patterns */ char_u **pat, /* array of input patterns */ int *num_file, /* resulting number of files */ char_u ***file, /* array of resulting files */ int flags) /* EW_* flags */ { int i; garray_T ga; char_u *p; static int recursive = FALSE; int add_pat; int retval = OK; #if defined(FEAT_SEARCHPATH) int did_expand_in_path = FALSE; #endif /* * expand_env() is called to expand things like "~user". If this fails, * it calls ExpandOne(), which brings us back here. In this case, always * call the machine specific expansion function, if possible. Otherwise, * return FAIL. */ if (recursive) #ifdef SPECIAL_WILDCHAR return mch_expand_wildcards(num_pat, pat, num_file, file, flags); #else return FAIL; #endif #ifdef SPECIAL_WILDCHAR /* * If there are any special wildcard characters which we cannot handle * here, call machine specific function for all the expansion. This * avoids starting the shell for each argument separately. * For `=expr` do use the internal function. */ for (i = 0; i < num_pat; i++) { if (has_special_wildchar(pat[i]) # ifdef VIM_BACKTICK && !(vim_backtick(pat[i]) && pat[i][1] == '=') # endif ) return mch_expand_wildcards(num_pat, pat, num_file, file, flags); } #endif recursive = TRUE; /* * The matching file names are stored in a growarray. Init it empty. */ ga_init2(&ga, (int)sizeof(char_u *), 30); for (i = 0; i < num_pat; ++i) { add_pat = -1; p = pat[i]; #ifdef VIM_BACKTICK if (vim_backtick(p)) { add_pat = expand_backtick(&ga, p, flags); if (add_pat == -1) retval = FAIL; } else #endif { /* * First expand environment variables, "~/" and "~user/". */ if (has_env_var(p) || *p == '~') { p = expand_env_save_opt(p, TRUE); if (p == NULL) p = pat[i]; #ifdef UNIX /* * On Unix, if expand_env() can't expand an environment * variable, use the shell to do that. Discard previously * found file names and start all over again. */ else if (has_env_var(p) || *p == '~') { vim_free(p); ga_clear_strings(&ga); i = mch_expand_wildcards(num_pat, pat, num_file, file, flags|EW_KEEPDOLLAR); recursive = FALSE; return i; } #endif } /* * If there are wildcards: Expand file names and add each match to * the list. If there is no match, and EW_NOTFOUND is given, add * the pattern. * If there are no wildcards: Add the file name if it exists or * when EW_NOTFOUND is given. */ if (mch_has_exp_wildcard(p)) { #if defined(FEAT_SEARCHPATH) if ((flags & EW_PATH) && !mch_isFullName(p) && !(p[0] == '.' && (vim_ispathsep(p[1]) || (p[1] == '.' && vim_ispathsep(p[2])))) ) { /* :find completion where 'path' is used. * Recursiveness is OK here. */ recursive = FALSE; add_pat = expand_in_path(&ga, p, flags); recursive = TRUE; did_expand_in_path = TRUE; } else #endif add_pat = mch_expandpath(&ga, p, flags); } } if (add_pat == -1 || (add_pat == 0 && (flags & EW_NOTFOUND))) { char_u *t = backslash_halve_save(p); /* When EW_NOTFOUND is used, always add files and dirs. Makes * "vim c:/" work. */ if (flags & EW_NOTFOUND) addfile(&ga, t, flags | EW_DIR | EW_FILE); else addfile(&ga, t, flags); vim_free(t); } #if defined(FEAT_SEARCHPATH) if (did_expand_in_path && ga.ga_len > 0 && (flags & EW_PATH)) uniquefy_paths(&ga, p); #endif if (p != pat[i]) vim_free(p); } *num_file = ga.ga_len; *file = (ga.ga_data != NULL) ? (char_u **)ga.ga_data : (char_u **)""; recursive = FALSE; return ((flags & EW_EMPTYOK) || ga.ga_data != NULL) ? retval : FAIL; } # ifdef VIM_BACKTICK /* * Return TRUE if we can expand this backtick thing here. */ static int vim_backtick(char_u *p) { return (*p == '`' && *(p + 1) != NUL && *(p + STRLEN(p) - 1) == '`'); } /* * Expand an item in `backticks` by executing it as a command. * Currently only works when pat[] starts and ends with a `. * Returns number of file names found, -1 if an error is encountered. */ static int expand_backtick( garray_T *gap, char_u *pat, int flags) /* EW_* flags */ { char_u *p; char_u *cmd; char_u *buffer; int cnt = 0; int i; /* Create the command: lop off the backticks. */ cmd = vim_strnsave(pat + 1, (int)STRLEN(pat) - 2); if (cmd == NULL) return -1; #ifdef FEAT_EVAL if (*cmd == '=') /* `={expr}`: Expand expression */ buffer = eval_to_string(cmd + 1, &p, TRUE); else #endif buffer = get_cmd_output(cmd, NULL, (flags & EW_SILENT) ? SHELL_SILENT : 0, NULL); vim_free(cmd); if (buffer == NULL) return -1; cmd = buffer; while (*cmd != NUL) { cmd = skipwhite(cmd); /* skip over white space */ p = cmd; while (*p != NUL && *p != '\r' && *p != '\n') /* skip over entry */ ++p; /* add an entry if it is not empty */ if (p > cmd) { i = *p; *p = NUL; addfile(gap, cmd, flags); *p = i; ++cnt; } cmd = p; while (*cmd != NUL && (*cmd == '\r' || *cmd == '\n')) ++cmd; } vim_free(buffer); return cnt; } # endif /* VIM_BACKTICK */ /* * Add a file to a file list. Accepted flags: * EW_DIR add directories * EW_FILE add files * EW_EXEC add executable files * EW_NOTFOUND add even when it doesn't exist * EW_ADDSLASH add slash after directory name * EW_ALLLINKS add symlink also when the referred file does not exist */ void addfile( garray_T *gap, char_u *f, /* filename */ int flags) { char_u *p; int isdir; stat_T sb; /* if the file/dir/link doesn't exist, may not add it */ if (!(flags & EW_NOTFOUND) && ((flags & EW_ALLLINKS) ? mch_lstat((char *)f, &sb) < 0 : mch_getperm(f) < 0)) return; #ifdef FNAME_ILLEGAL /* if the file/dir contains illegal characters, don't add it */ if (vim_strpbrk(f, (char_u *)FNAME_ILLEGAL) != NULL) return; #endif isdir = mch_isdir(f); if ((isdir && !(flags & EW_DIR)) || (!isdir && !(flags & EW_FILE))) return; /* If the file isn't executable, may not add it. Do accept directories. * When invoked from expand_shellcmd() do not use $PATH. */ if (!isdir && (flags & EW_EXEC) && !mch_can_exe(f, NULL, !(flags & EW_SHELLCMD))) return; /* Make room for another item in the file list. */ if (ga_grow(gap, 1) == FAIL) return; p = alloc((unsigned)(STRLEN(f) + 1 + isdir)); if (p == NULL) return; STRCPY(p, f); #ifdef BACKSLASH_IN_FILENAME slash_adjust(p); #endif /* * Append a slash or backslash after directory names if none is present. */ #ifndef DONT_ADD_PATHSEP_TO_DIR if (isdir && (flags & EW_ADDSLASH)) add_pathsep(p); #endif ((char_u **)gap->ga_data)[gap->ga_len++] = p; } #endif /* !NO_EXPANDPATH */ #if defined(VIM_BACKTICK) || defined(FEAT_EVAL) || defined(PROTO) #ifndef SEEK_SET # define SEEK_SET 0 #endif #ifndef SEEK_END # define SEEK_END 2 #endif /* * Get the stdout of an external command. * If "ret_len" is NULL replace NUL characters with NL. When "ret_len" is not * NULL store the length there. * Returns an allocated string, or NULL for error. */ char_u * get_cmd_output( char_u *cmd, char_u *infile, /* optional input file name */ int flags, /* can be SHELL_SILENT */ int *ret_len) { char_u *tempname; char_u *command; char_u *buffer = NULL; int len; int i = 0; FILE *fd; if (check_restricted() || check_secure()) return NULL; /* get a name for the temp file */ if ((tempname = vim_tempname('o', FALSE)) == NULL) { emsg(_(e_notmp)); return NULL; } /* Add the redirection stuff */ command = make_filter_cmd(cmd, infile, tempname); if (command == NULL) goto done; /* * Call the shell to execute the command (errors are ignored). * Don't check timestamps here. */ ++no_check_timestamps; call_shell(command, SHELL_DOOUT | SHELL_EXPAND | flags); --no_check_timestamps; vim_free(command); /* * read the names from the file into memory */ # ifdef VMS /* created temporary file is not always readable as binary */ fd = mch_fopen((char *)tempname, "r"); # else fd = mch_fopen((char *)tempname, READBIN); # endif if (fd == NULL) { semsg(_(e_notopen), tempname); goto done; } fseek(fd, 0L, SEEK_END); len = ftell(fd); /* get size of temp file */ fseek(fd, 0L, SEEK_SET); buffer = alloc(len + 1); if (buffer != NULL) i = (int)fread((char *)buffer, (size_t)1, (size_t)len, fd); fclose(fd); mch_remove(tempname); if (buffer == NULL) goto done; #ifdef VMS len = i; /* VMS doesn't give us what we asked for... */ #endif if (i != len) { semsg(_(e_notread), tempname); VIM_CLEAR(buffer); } else if (ret_len == NULL) { /* Change NUL into SOH, otherwise the string is truncated. */ for (i = 0; i < len; ++i) if (buffer[i] == NUL) buffer[i] = 1; buffer[len] = NUL; /* make sure the buffer is terminated */ } else *ret_len = len; done: vim_free(tempname); return buffer; } #endif /* * Free the list of files returned by expand_wildcards() or other expansion * functions. */ void FreeWild(int count, char_u **files) { if (count <= 0 || files == NULL) return; while (count--) vim_free(files[count]); vim_free(files); } /* * Return TRUE when need to go to Insert mode because of 'insertmode'. * Don't do this when still processing a command or a mapping. * Don't do this when inside a ":normal" command. */ int goto_im(void) { return (p_im && stuff_empty() && typebuf_typed()); } /* * Returns the isolated name of the shell in allocated memory: * - Skip beyond any path. E.g., "/usr/bin/csh -f" -> "csh -f". * - Remove any argument. E.g., "csh -f" -> "csh". * But don't allow a space in the path, so that this works: * "/usr/bin/csh --rcfile ~/.cshrc" * But don't do that for Windows, it's common to have a space in the path. */ char_u * get_isolated_shell_name(void) { char_u *p; #ifdef MSWIN p = gettail(p_sh); p = vim_strnsave(p, (int)(skiptowhite(p) - p)); #else p = skiptowhite(p_sh); if (*p == NUL) { /* No white space, use the tail. */ p = vim_strsave(gettail(p_sh)); } else { char_u *p1, *p2; /* Find the last path separator before the space. */ p1 = p_sh; for (p2 = p_sh; p2 < p; MB_PTR_ADV(p2)) if (vim_ispathsep(*p2)) p1 = p2 + 1; p = vim_strnsave(p1, (int)(p - p1)); } #endif return p; } /* * Check if the "://" of a URL is at the pointer, return URL_SLASH. * Also check for ":\\", which MS Internet Explorer accepts, return * URL_BACKSLASH. */ int path_is_url(char_u *p) { if (STRNCMP(p, "://", (size_t)3) == 0) return URL_SLASH; else if (STRNCMP(p, ":\\\\", (size_t)3) == 0) return URL_BACKSLASH; return 0; } /* * Check if "fname" starts with "name://". Return URL_SLASH if it does. * Return URL_BACKSLASH for "name:\\". * Return zero otherwise. */ int path_with_url(char_u *fname) { char_u *p; for (p = fname; isalpha(*p); ++p) ; return path_is_url(p); } /* * Return TRUE if "name" is a full (absolute) path name or URL. */ int vim_isAbsName(char_u *name) { return (path_with_url(name) != 0 || mch_isFullName(name)); } /* * Get absolute file name into buffer "buf[len]". * * return FAIL for failure, OK otherwise */ int vim_FullName( char_u *fname, char_u *buf, int len, int force) /* force expansion even when already absolute */ { int retval = OK; int url; *buf = NUL; if (fname == NULL) return FAIL; url = path_with_url(fname); if (!url) retval = mch_FullName(fname, buf, len, force); if (url || retval == FAIL) { /* something failed; use the file name (truncate when too long) */ vim_strncpy(buf, fname, len - 1); } #if defined(MSWIN) slash_adjust(buf); #endif return retval; }