Mercurial > vim
view src/ex_cmds.c @ 21105:4851b16ccb56
Added tag v8.2.1103 for changeset f8ec5a7a9cf6cdecf50d868cd023cdc7dcd47697
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Wed, 01 Jul 2020 13:15:06 +0200 |
| parents | 9064044fd4f6 |
| children | 5db63c2c6929 |
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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. */ /* * ex_cmds.c: some functions for command line commands */ #include "vim.h" #include "version.h" #ifdef FEAT_FLOAT # include <float.h> #endif static int linelen(int *has_tab); static void do_filter(linenr_T line1, linenr_T line2, exarg_T *eap, char_u *cmd, int do_in, int do_out); static int not_writing(void); static int check_readonly(int *forceit, buf_T *buf); static void delbuf_msg(char_u *name); static int help_compare(const void *s1, const void *s2); static void prepare_help_buffer(void); /* * ":ascii" and "ga". */ void do_ascii(exarg_T *eap UNUSED) { int c; int cval; char buf1[20]; char buf2[20]; char_u buf3[7]; #ifdef FEAT_DIGRAPHS char_u *dig; #endif int cc[MAX_MCO]; int ci = 0; int len; if (enc_utf8) c = utfc_ptr2char(ml_get_cursor(), cc); else c = gchar_cursor(); if (c == NUL) { msg("NUL"); return; } IObuff[0] = NUL; if (!has_mbyte || (enc_dbcs != 0 && c < 0x100) || c < 0x80) { if (c == NL) // NUL is stored as NL c = NUL; if (c == CAR && get_fileformat(curbuf) == EOL_MAC) cval = NL; // NL is stored as CR else cval = c; if (vim_isprintc_strict(c) && (c < ' ' #ifndef EBCDIC || c > '~' #endif )) { transchar_nonprint(curbuf, buf3, c); vim_snprintf(buf1, sizeof(buf1), " <%s>", (char *)buf3); } else buf1[0] = NUL; #ifndef EBCDIC if (c >= 0x80) vim_snprintf(buf2, sizeof(buf2), " <M-%s>", (char *)transchar(c & 0x7f)); else #endif buf2[0] = NUL; #ifdef FEAT_DIGRAPHS dig = get_digraph_for_char(cval); if (dig != NULL) vim_snprintf((char *)IObuff, IOSIZE, _("<%s>%s%s %d, Hex %02x, Oct %03o, Digr %s"), transchar(c), buf1, buf2, cval, cval, cval, dig); else #endif vim_snprintf((char *)IObuff, IOSIZE, _("<%s>%s%s %d, Hex %02x, Octal %03o"), transchar(c), buf1, buf2, cval, cval, cval); if (enc_utf8) c = cc[ci++]; else c = 0; } // Repeat for combining characters. while (has_mbyte && (c >= 0x100 || (enc_utf8 && c >= 0x80))) { len = (int)STRLEN(IObuff); // This assumes every multi-byte char is printable... if (len > 0) IObuff[len++] = ' '; IObuff[len++] = '<'; if (enc_utf8 && utf_iscomposing(c) # ifdef USE_GUI && !gui.in_use # endif ) IObuff[len++] = ' '; // draw composing char on top of a space len += (*mb_char2bytes)(c, IObuff + len); #ifdef FEAT_DIGRAPHS dig = get_digraph_for_char(c); if (dig != NULL) vim_snprintf((char *)IObuff + len, IOSIZE - len, c < 0x10000 ? _("> %d, Hex %04x, Oct %o, Digr %s") : _("> %d, Hex %08x, Oct %o, Digr %s"), c, c, c, dig); else #endif vim_snprintf((char *)IObuff + len, IOSIZE - len, c < 0x10000 ? _("> %d, Hex %04x, Octal %o") : _("> %d, Hex %08x, Octal %o"), c, c, c); if (ci == MAX_MCO) break; if (enc_utf8) c = cc[ci++]; else c = 0; } msg((char *)IObuff); } /* * ":left", ":center" and ":right": align text. */ void ex_align(exarg_T *eap) { pos_T save_curpos; int len; int indent = 0; int new_indent; int has_tab; int width; #ifdef FEAT_RIGHTLEFT if (curwin->w_p_rl) { // switch left and right aligning if (eap->cmdidx == CMD_right) eap->cmdidx = CMD_left; else if (eap->cmdidx == CMD_left) eap->cmdidx = CMD_right; } #endif width = atoi((char *)eap->arg); save_curpos = curwin->w_cursor; if (eap->cmdidx == CMD_left) // width is used for new indent { if (width >= 0) indent = width; } else { /* * if 'textwidth' set, use it * else if 'wrapmargin' set, use it * if invalid value, use 80 */ if (width <= 0) width = curbuf->b_p_tw; if (width == 0 && curbuf->b_p_wm > 0) width = curwin->w_width - curbuf->b_p_wm; if (width <= 0) width = 80; } if (u_save((linenr_T)(eap->line1 - 1), (linenr_T)(eap->line2 + 1)) == FAIL) return; for (curwin->w_cursor.lnum = eap->line1; curwin->w_cursor.lnum <= eap->line2; ++curwin->w_cursor.lnum) { if (eap->cmdidx == CMD_left) // left align new_indent = indent; else { has_tab = FALSE; // avoid uninit warnings len = linelen(eap->cmdidx == CMD_right ? &has_tab : NULL) - get_indent(); if (len <= 0) // skip blank lines continue; if (eap->cmdidx == CMD_center) new_indent = (width - len) / 2; else { new_indent = width - len; // right align /* * Make sure that embedded TABs don't make the text go too far * to the right. */ if (has_tab) while (new_indent > 0) { (void)set_indent(new_indent, 0); if (linelen(NULL) <= width) { /* * Now try to move the line as much as possible to * the right. Stop when it moves too far. */ do (void)set_indent(++new_indent, 0); while (linelen(NULL) <= width); --new_indent; break; } --new_indent; } } } if (new_indent < 0) new_indent = 0; (void)set_indent(new_indent, 0); // set indent } changed_lines(eap->line1, 0, eap->line2 + 1, 0L); curwin->w_cursor = save_curpos; beginline(BL_WHITE | BL_FIX); } /* * Get the length of the current line, excluding trailing white space. */ static int linelen(int *has_tab) { char_u *line; char_u *first; char_u *last; int save; int len; // Get the line. If it's empty bail out early (could be the empty string // for an unloaded buffer). line = ml_get_curline(); if (*line == NUL) return 0; // find the first non-blank character first = skipwhite(line); // find the character after the last non-blank character for (last = first + STRLEN(first); last > first && VIM_ISWHITE(last[-1]); --last) ; save = *last; *last = NUL; len = linetabsize(line); // get line length if (has_tab != NULL) // check for embedded TAB *has_tab = (vim_strchr(first, TAB) != NULL); *last = save; return len; } // Buffer for two lines used during sorting. They are allocated to // contain the longest line being sorted. static char_u *sortbuf1; static char_u *sortbuf2; static int sort_ic; // ignore case static int sort_nr; // sort on number static int sort_rx; // sort on regex instead of skipping it #ifdef FEAT_FLOAT static int sort_flt; // sort on floating number #endif static int sort_abort; // flag to indicate if sorting has been interrupted // Struct to store info to be sorted. typedef struct { linenr_T lnum; // line number union { struct { varnumber_T start_col_nr; // starting column number varnumber_T end_col_nr; // ending column number } line; struct { varnumber_T value; // value if sorting by integer int is_number; // TRUE when line contains a number } num; #ifdef FEAT_FLOAT float_T value_flt; // value if sorting by float #endif } st_u; } sorti_T; static int sort_compare(const void *s1, const void *s2); static int sort_compare(const void *s1, const void *s2) { sorti_T l1 = *(sorti_T *)s1; sorti_T l2 = *(sorti_T *)s2; int result = 0; // If the user interrupts, there's no way to stop qsort() immediately, but // if we return 0 every time, qsort will assume it's done sorting and // exit. if (sort_abort) return 0; fast_breakcheck(); if (got_int) sort_abort = TRUE; if (sort_nr) { if (l1.st_u.num.is_number != l2.st_u.num.is_number) result = l1.st_u.num.is_number - l2.st_u.num.is_number; else result = l1.st_u.num.value == l2.st_u.num.value ? 0 : l1.st_u.num.value > l2.st_u.num.value ? 1 : -1; } #ifdef FEAT_FLOAT else if (sort_flt) result = l1.st_u.value_flt == l2.st_u.value_flt ? 0 : l1.st_u.value_flt > l2.st_u.value_flt ? 1 : -1; #endif else { // We need to copy one line into "sortbuf1", because there is no // guarantee that the first pointer becomes invalid when obtaining the // second one. STRNCPY(sortbuf1, ml_get(l1.lnum) + l1.st_u.line.start_col_nr, l1.st_u.line.end_col_nr - l1.st_u.line.start_col_nr + 1); sortbuf1[l1.st_u.line.end_col_nr - l1.st_u.line.start_col_nr] = 0; STRNCPY(sortbuf2, ml_get(l2.lnum) + l2.st_u.line.start_col_nr, l2.st_u.line.end_col_nr - l2.st_u.line.start_col_nr + 1); sortbuf2[l2.st_u.line.end_col_nr - l2.st_u.line.start_col_nr] = 0; result = sort_ic ? STRICMP(sortbuf1, sortbuf2) : STRCMP(sortbuf1, sortbuf2); } // If two lines have the same value, preserve the original line order. if (result == 0) return (int)(l1.lnum - l2.lnum); return result; } /* * ":sort". */ void ex_sort(exarg_T *eap) { regmatch_T regmatch; int len; linenr_T lnum; long maxlen = 0; sorti_T *nrs; size_t count = (size_t)(eap->line2 - eap->line1 + 1); size_t i; char_u *p; char_u *s; char_u *s2; char_u c; // temporary character storage int unique = FALSE; long deleted; colnr_T start_col; colnr_T end_col; int sort_what = 0; int format_found = 0; int change_occurred = FALSE; // Buffer contents changed. // Sorting one line is really quick! if (count <= 1) return; if (u_save((linenr_T)(eap->line1 - 1), (linenr_T)(eap->line2 + 1)) == FAIL) return; sortbuf1 = NULL; sortbuf2 = NULL; regmatch.regprog = NULL; nrs = ALLOC_MULT(sorti_T, count); if (nrs == NULL) goto sortend; sort_abort = sort_ic = sort_rx = sort_nr = 0; #ifdef FEAT_FLOAT sort_flt = 0; #endif for (p = eap->arg; *p != NUL; ++p) { if (VIM_ISWHITE(*p)) ; else if (*p == 'i') sort_ic = TRUE; else if (*p == 'r') sort_rx = TRUE; else if (*p == 'n') { sort_nr = 1; ++format_found; } #ifdef FEAT_FLOAT else if (*p == 'f') { sort_flt = 1; ++format_found; } #endif else if (*p == 'b') { sort_what = STR2NR_BIN + STR2NR_FORCE; ++format_found; } else if (*p == 'o') { sort_what = STR2NR_OCT + STR2NR_FORCE; ++format_found; } else if (*p == 'x') { sort_what = STR2NR_HEX + STR2NR_FORCE; ++format_found; } else if (*p == 'u') unique = TRUE; else if (*p == '"') // comment start break; else if (check_nextcmd(p) != NULL) { eap->nextcmd = check_nextcmd(p); break; } else if (!ASCII_ISALPHA(*p) && regmatch.regprog == NULL) { s = skip_regexp_err(p + 1, *p, TRUE); if (s == NULL) goto sortend; *s = NUL; // Use last search pattern if sort pattern is empty. if (s == p + 1) { if (last_search_pat() == NULL) { emsg(_(e_noprevre)); goto sortend; } regmatch.regprog = vim_regcomp(last_search_pat(), RE_MAGIC); } else regmatch.regprog = vim_regcomp(p + 1, RE_MAGIC); if (regmatch.regprog == NULL) goto sortend; p = s; // continue after the regexp regmatch.rm_ic = p_ic; } else { semsg(_(e_invarg2), p); goto sortend; } } // Can only have one of 'n', 'b', 'o' and 'x'. if (format_found > 1) { emsg(_(e_invarg)); goto sortend; } // From here on "sort_nr" is used as a flag for any integer number // sorting. sort_nr += sort_what; /* * Make an array with all line numbers. This avoids having to copy all * the lines into allocated memory. * When sorting on strings "start_col_nr" is the offset in the line, for * numbers sorting it's the number to sort on. This means the pattern * matching and number conversion only has to be done once per line. * Also get the longest line length for allocating "sortbuf". */ for (lnum = eap->line1; lnum <= eap->line2; ++lnum) { s = ml_get(lnum); len = (int)STRLEN(s); if (maxlen < len) maxlen = len; start_col = 0; end_col = len; if (regmatch.regprog != NULL && vim_regexec(®match, s, 0)) { if (sort_rx) { start_col = (colnr_T)(regmatch.startp[0] - s); end_col = (colnr_T)(regmatch.endp[0] - s); } else start_col = (colnr_T)(regmatch.endp[0] - s); } else if (regmatch.regprog != NULL) end_col = 0; if (sort_nr #ifdef FEAT_FLOAT || sort_flt #endif ) { // Make sure vim_str2nr doesn't read any digits past the end // of the match, by temporarily terminating the string there s2 = s + end_col; c = *s2; *s2 = NUL; // Sorting on number: Store the number itself. p = s + start_col; if (sort_nr) { if (sort_what & STR2NR_HEX) s = skiptohex(p); else if (sort_what & STR2NR_BIN) s = skiptobin(p); else s = skiptodigit(p); if (s > p && s[-1] == '-') --s; // include preceding negative sign if (*s == NUL) { // line without number should sort before any number nrs[lnum - eap->line1].st_u.num.is_number = FALSE; nrs[lnum - eap->line1].st_u.num.value = 0; } else { nrs[lnum - eap->line1].st_u.num.is_number = TRUE; vim_str2nr(s, NULL, NULL, sort_what, &nrs[lnum - eap->line1].st_u.num.value, NULL, 0, FALSE); } } #ifdef FEAT_FLOAT else { s = skipwhite(p); if (*s == '+') s = skipwhite(s + 1); if (*s == NUL) // empty line should sort before any number nrs[lnum - eap->line1].st_u.value_flt = -DBL_MAX; else nrs[lnum - eap->line1].st_u.value_flt = strtod((char *)s, NULL); } #endif *s2 = c; } else { // Store the column to sort at. nrs[lnum - eap->line1].st_u.line.start_col_nr = start_col; nrs[lnum - eap->line1].st_u.line.end_col_nr = end_col; } nrs[lnum - eap->line1].lnum = lnum; if (regmatch.regprog != NULL) fast_breakcheck(); if (got_int) goto sortend; } // Allocate a buffer that can hold the longest line. sortbuf1 = alloc(maxlen + 1); if (sortbuf1 == NULL) goto sortend; sortbuf2 = alloc(maxlen + 1); if (sortbuf2 == NULL) goto sortend; // Sort the array of line numbers. Note: can't be interrupted! qsort((void *)nrs, count, sizeof(sorti_T), sort_compare); if (sort_abort) goto sortend; // Insert the lines in the sorted order below the last one. lnum = eap->line2; for (i = 0; i < count; ++i) { linenr_T get_lnum = nrs[eap->forceit ? count - i - 1 : i].lnum; // If the original line number of the line being placed is not the same // as "lnum" (accounting for offset), we know that the buffer changed. if (get_lnum + ((linenr_T)count - 1) != lnum) change_occurred = TRUE; s = ml_get(get_lnum); if (!unique || i == 0 || (sort_ic ? STRICMP(s, sortbuf1) : STRCMP(s, sortbuf1)) != 0) { // Copy the line into a buffer, it may become invalid in // ml_append(). And it's needed for "unique". STRCPY(sortbuf1, s); if (ml_append(lnum++, sortbuf1, (colnr_T)0, FALSE) == FAIL) break; } fast_breakcheck(); if (got_int) goto sortend; } // delete the original lines if appending worked if (i == count) for (i = 0; i < count; ++i) ml_delete(eap->line1); else count = 0; // Adjust marks for deleted (or added) lines and prepare for displaying. deleted = (long)(count - (lnum - eap->line2)); if (deleted > 0) { mark_adjust(eap->line2 - deleted, eap->line2, (long)MAXLNUM, -deleted); msgmore(-deleted); } else if (deleted < 0) mark_adjust(eap->line2, MAXLNUM, -deleted, 0L); if (change_occurred || deleted != 0) changed_lines(eap->line1, 0, eap->line2 + 1, -deleted); curwin->w_cursor.lnum = eap->line1; beginline(BL_WHITE | BL_FIX); sortend: vim_free(nrs); vim_free(sortbuf1); vim_free(sortbuf2); vim_regfree(regmatch.regprog); if (got_int) emsg(_(e_interr)); } /* * :move command - move lines line1-line2 to line dest * * return FAIL for failure, OK otherwise */ int do_move(linenr_T line1, linenr_T line2, linenr_T dest) { char_u *str; linenr_T l; linenr_T extra; // Num lines added before line1 linenr_T num_lines; // Num lines moved linenr_T last_line; // Last line in file after adding new text #ifdef FEAT_FOLDING win_T *win; tabpage_T *tp; #endif if (dest >= line1 && dest < line2) { emsg(_("E134: Cannot move a range of lines into itself")); return FAIL; } // Do nothing if we are not actually moving any lines. This will prevent // the 'modified' flag from being set without cause. if (dest == line1 - 1 || dest == line2) { // Move the cursor as if lines were moved (see below) to be backwards // compatible. if (dest >= line1) curwin->w_cursor.lnum = dest; else curwin->w_cursor.lnum = dest + (line2 - line1) + 1; return OK; } num_lines = line2 - line1 + 1; /* * First we copy the old text to its new location -- webb * Also copy the flag that ":global" command uses. */ if (u_save(dest, dest + 1) == FAIL) return FAIL; for (extra = 0, l = line1; l <= line2; l++) { str = vim_strsave(ml_get(l + extra)); if (str != NULL) { ml_append(dest + l - line1, str, (colnr_T)0, FALSE); vim_free(str); if (dest < line1) extra++; } } /* * Now we must be careful adjusting our marks so that we don't overlap our * mark_adjust() calls. * * We adjust the marks within the old text so that they refer to the * last lines of the file (temporarily), because we know no other marks * will be set there since these line numbers did not exist until we added * our new lines. * * Then we adjust the marks on lines between the old and new text positions * (either forwards or backwards). * * And Finally we adjust the marks we put at the end of the file back to * their final destination at the new text position -- webb */ last_line = curbuf->b_ml.ml_line_count; mark_adjust_nofold(line1, line2, last_line - line2, 0L); if (dest >= line2) { mark_adjust_nofold(line2 + 1, dest, -num_lines, 0L); #ifdef FEAT_FOLDING FOR_ALL_TAB_WINDOWS(tp, win) { if (win->w_buffer == curbuf) foldMoveRange(&win->w_folds, line1, line2, dest); } #endif if (!cmdmod.lockmarks) { curbuf->b_op_start.lnum = dest - num_lines + 1; curbuf->b_op_end.lnum = dest; } } else { mark_adjust_nofold(dest + 1, line1 - 1, num_lines, 0L); #ifdef FEAT_FOLDING FOR_ALL_TAB_WINDOWS(tp, win) { if (win->w_buffer == curbuf) foldMoveRange(&win->w_folds, dest + 1, line1 - 1, line2); } #endif if (!cmdmod.lockmarks) { curbuf->b_op_start.lnum = dest + 1; curbuf->b_op_end.lnum = dest + num_lines; } } if (!cmdmod.lockmarks) curbuf->b_op_start.col = curbuf->b_op_end.col = 0; mark_adjust_nofold(last_line - num_lines + 1, last_line, -(last_line - dest - extra), 0L); /* * Now we delete the original text -- webb */ if (u_save(line1 + extra - 1, line2 + extra + 1) == FAIL) return FAIL; for (l = line1; l <= line2; l++) ml_delete_flags(line1 + extra, ML_DEL_MESSAGE); if (!global_busy && num_lines > p_report) smsg(NGETTEXT("%ld line moved", "%ld lines moved", num_lines), (long)num_lines); /* * Leave the cursor on the last of the moved lines. */ if (dest >= line1) curwin->w_cursor.lnum = dest; else curwin->w_cursor.lnum = dest + (line2 - line1) + 1; if (line1 < dest) { dest += num_lines + 1; last_line = curbuf->b_ml.ml_line_count; if (dest > last_line + 1) dest = last_line + 1; changed_lines(line1, 0, dest, 0L); } else changed_lines(dest + 1, 0, line1 + num_lines, 0L); return OK; } /* * ":copy" */ void ex_copy(linenr_T line1, linenr_T line2, linenr_T n) { linenr_T count; char_u *p; count = line2 - line1 + 1; if (!cmdmod.lockmarks) { curbuf->b_op_start.lnum = n + 1; curbuf->b_op_end.lnum = n + count; curbuf->b_op_start.col = curbuf->b_op_end.col = 0; } /* * there are three situations: * 1. destination is above line1 * 2. destination is between line1 and line2 * 3. destination is below line2 * * n = destination (when starting) * curwin->w_cursor.lnum = destination (while copying) * line1 = start of source (while copying) * line2 = end of source (while copying) */ if (u_save(n, n + 1) == FAIL) return; curwin->w_cursor.lnum = n; while (line1 <= line2) { // need to use vim_strsave() because the line will be unlocked within // ml_append() p = vim_strsave(ml_get(line1)); if (p != NULL) { ml_append(curwin->w_cursor.lnum, p, (colnr_T)0, FALSE); vim_free(p); } // situation 2: skip already copied lines if (line1 == n) line1 = curwin->w_cursor.lnum; ++line1; if (curwin->w_cursor.lnum < line1) ++line1; if (curwin->w_cursor.lnum < line2) ++line2; ++curwin->w_cursor.lnum; } appended_lines_mark(n, count); msgmore((long)count); } static char_u *prevcmd = NULL; // the previous command #if defined(EXITFREE) || defined(PROTO) void free_prev_shellcmd(void) { vim_free(prevcmd); } #endif /* * Handle the ":!cmd" command. Also for ":r !cmd" and ":w !cmd" * Bangs in the argument are replaced with the previously entered command. * Remember the argument. */ void do_bang( int addr_count, exarg_T *eap, int forceit, int do_in, int do_out) { char_u *arg = eap->arg; // command linenr_T line1 = eap->line1; // start of range linenr_T line2 = eap->line2; // end of range char_u *newcmd = NULL; // the new command int free_newcmd = FALSE; // need to free() newcmd int ins_prevcmd; char_u *t; char_u *p; char_u *trailarg; int len; int scroll_save = msg_scroll; /* * Disallow shell commands for "rvim". * Disallow shell commands from .exrc and .vimrc in current directory for * security reasons. */ if (check_restricted() || check_secure()) return; if (addr_count == 0) // :! { msg_scroll = FALSE; // don't scroll here autowrite_all(); msg_scroll = scroll_save; } /* * Try to find an embedded bang, like in :!<cmd> ! [args] * (:!! is indicated by the 'forceit' variable) */ ins_prevcmd = forceit; trailarg = arg; do { len = (int)STRLEN(trailarg) + 1; if (newcmd != NULL) len += (int)STRLEN(newcmd); if (ins_prevcmd) { if (prevcmd == NULL) { emsg(_(e_noprev)); vim_free(newcmd); return; } len += (int)STRLEN(prevcmd); } if ((t = alloc(len)) == NULL) { vim_free(newcmd); return; } *t = NUL; if (newcmd != NULL) STRCAT(t, newcmd); if (ins_prevcmd) STRCAT(t, prevcmd); p = t + STRLEN(t); STRCAT(t, trailarg); vim_free(newcmd); newcmd = t; /* * Scan the rest of the argument for '!', which is replaced by the * previous command. "\!" is replaced by "!" (this is vi compatible). */ trailarg = NULL; while (*p) { if (*p == '!') { if (p > newcmd && p[-1] == '\\') STRMOVE(p - 1, p); else { trailarg = p; *trailarg++ = NUL; ins_prevcmd = TRUE; break; } } ++p; } } while (trailarg != NULL); vim_free(prevcmd); prevcmd = newcmd; if (bangredo) // put cmd in redo buffer for ! command { // If % or # appears in the command, it must have been escaped. // Reescape them, so that redoing them does not substitute them by the // buffername. char_u *cmd = vim_strsave_escaped(prevcmd, (char_u *)"%#"); if (cmd != NULL) { AppendToRedobuffLit(cmd, -1); vim_free(cmd); } else AppendToRedobuffLit(prevcmd, -1); AppendToRedobuff((char_u *)"\n"); bangredo = FALSE; } /* * Add quotes around the command, for shells that need them. */ if (*p_shq != NUL) { newcmd = alloc(STRLEN(prevcmd) + 2 * STRLEN(p_shq) + 1); if (newcmd == NULL) return; STRCPY(newcmd, p_shq); STRCAT(newcmd, prevcmd); STRCAT(newcmd, p_shq); free_newcmd = TRUE; } if (addr_count == 0) // :! { // echo the command msg_start(); msg_putchar(':'); msg_putchar('!'); msg_outtrans(newcmd); msg_clr_eos(); windgoto(msg_row, msg_col); do_shell(newcmd, 0); } else // :range! { // Careful: This may recursively call do_bang() again! (because of // autocommands) do_filter(line1, line2, eap, newcmd, do_in, do_out); apply_autocmds(EVENT_SHELLFILTERPOST, NULL, NULL, FALSE, curbuf); } if (free_newcmd) vim_free(newcmd); } /* * do_filter: filter lines through a command given by the user * * We mostly use temp files and the call_shell() routine here. This would * normally be done using pipes on a UNIX machine, but this is more portable * to non-unix machines. The call_shell() routine needs to be able * to deal with redirection somehow, and should handle things like looking * at the PATH env. variable, and adding reasonable extensions to the * command name given by the user. All reasonable versions of call_shell() * do this. * Alternatively, if on Unix and redirecting input or output, but not both, * and the 'shelltemp' option isn't set, use pipes. * We use input redirection if do_in is TRUE. * We use output redirection if do_out is TRUE. */ static void do_filter( linenr_T line1, linenr_T line2, exarg_T *eap, // for forced 'ff' and 'fenc' char_u *cmd, int do_in, int do_out) { char_u *itmp = NULL; char_u *otmp = NULL; linenr_T linecount; linenr_T read_linecount; pos_T cursor_save; char_u *cmd_buf; buf_T *old_curbuf = curbuf; int shell_flags = 0; pos_T orig_start = curbuf->b_op_start; pos_T orig_end = curbuf->b_op_end; int save_lockmarks = cmdmod.lockmarks; #ifdef FEAT_FILTERPIPE int stmp = p_stmp; #endif if (*cmd == NUL) // no filter command return; // Temporarily disable lockmarks since that's needed to propagate changed // regions of the buffer for foldUpdate(), linecount, etc. cmdmod.lockmarks = 0; cursor_save = curwin->w_cursor; linecount = line2 - line1 + 1; curwin->w_cursor.lnum = line1; curwin->w_cursor.col = 0; changed_line_abv_curs(); invalidate_botline(); /* * When using temp files: * 1. * Form temp file names * 2. * Write the lines to a temp file * 3. Run the filter command on the temp file * 4. * Read the output of the command into the buffer * 5. * Delete the original lines to be filtered * 6. * Remove the temp files * * When writing the input with a pipe or when catching the output with a * pipe only need to do 3. */ if (do_out) shell_flags |= SHELL_DOOUT; #ifdef FEAT_FILTERPIPE # ifdef VIMDLL if (!gui.in_use && !gui.starting) stmp = 1; // Console mode doesn't support filterpipe. # endif if (!do_in && do_out && !stmp) { // Use a pipe to fetch stdout of the command, do not use a temp file. shell_flags |= SHELL_READ; curwin->w_cursor.lnum = line2; } else if (do_in && !do_out && !stmp) { // Use a pipe to write stdin of the command, do not use a temp file. shell_flags |= SHELL_WRITE; curbuf->b_op_start.lnum = line1; curbuf->b_op_end.lnum = line2; } else if (do_in && do_out && !stmp) { // Use a pipe to write stdin and fetch stdout of the command, do not // use a temp file. shell_flags |= SHELL_READ|SHELL_WRITE; curbuf->b_op_start.lnum = line1; curbuf->b_op_end.lnum = line2; curwin->w_cursor.lnum = line2; } else #endif if ((do_in && (itmp = vim_tempname('i', FALSE)) == NULL) || (do_out && (otmp = vim_tempname('o', FALSE)) == NULL)) { emsg(_(e_notmp)); goto filterend; } /* * The writing and reading of temp files will not be shown. * Vi also doesn't do this and the messages are not very informative. */ ++no_wait_return; // don't call wait_return() while busy if (itmp != NULL && buf_write(curbuf, itmp, NULL, line1, line2, eap, FALSE, FALSE, FALSE, TRUE) == FAIL) { msg_putchar('\n'); // keep message from buf_write() --no_wait_return; #if defined(FEAT_EVAL) if (!aborting()) #endif (void)semsg(_(e_notcreate), itmp); // will call wait_return goto filterend; } if (curbuf != old_curbuf) goto filterend; if (!do_out) msg_putchar('\n'); // Create the shell command in allocated memory. cmd_buf = make_filter_cmd(cmd, itmp, otmp); if (cmd_buf == NULL) goto filterend; windgoto((int)Rows - 1, 0); cursor_on(); /* * When not redirecting the output the command can write anything to the * screen. If 'shellredir' is equal to ">", screen may be messed up by * stderr output of external command. Clear the screen later. * If do_in is FALSE, this could be something like ":r !cat", which may * also mess up the screen, clear it later. */ if (!do_out || STRCMP(p_srr, ">") == 0 || !do_in) redraw_later_clear(); if (do_out) { if (u_save((linenr_T)(line2), (linenr_T)(line2 + 1)) == FAIL) { vim_free(cmd_buf); goto error; } redraw_curbuf_later(VALID); } read_linecount = curbuf->b_ml.ml_line_count; /* * When call_shell() fails wait_return() is called to give the user a * chance to read the error messages. Otherwise errors are ignored, so you * can see the error messages from the command that appear on stdout; use * 'u' to fix the text * Switch to cooked mode when not redirecting stdin, avoids that something * like ":r !cat" hangs. * Pass on the SHELL_DOOUT flag when the output is being redirected. */ if (call_shell(cmd_buf, SHELL_FILTER | SHELL_COOKED | shell_flags)) { redraw_later_clear(); wait_return(FALSE); } vim_free(cmd_buf); did_check_timestamps = FALSE; need_check_timestamps = TRUE; // When interrupting the shell command, it may still have produced some // useful output. Reset got_int here, so that readfile() won't cancel // reading. ui_breakcheck(); got_int = FALSE; if (do_out) { if (otmp != NULL) { if (readfile(otmp, NULL, line2, (linenr_T)0, (linenr_T)MAXLNUM, eap, READ_FILTER) != OK) { #if defined(FEAT_EVAL) if (!aborting()) #endif { msg_putchar('\n'); semsg(_(e_notread), otmp); } goto error; } if (curbuf != old_curbuf) goto filterend; } read_linecount = curbuf->b_ml.ml_line_count - read_linecount; if (shell_flags & SHELL_READ) { curbuf->b_op_start.lnum = line2 + 1; curbuf->b_op_end.lnum = curwin->w_cursor.lnum; appended_lines_mark(line2, read_linecount); } if (do_in) { if (cmdmod.keepmarks || vim_strchr(p_cpo, CPO_REMMARK) == NULL) { if (read_linecount >= linecount) // move all marks from old lines to new lines mark_adjust(line1, line2, linecount, 0L); else { // move marks from old lines to new lines, delete marks // that are in deleted lines mark_adjust(line1, line1 + read_linecount - 1, linecount, 0L); mark_adjust(line1 + read_linecount, line2, MAXLNUM, 0L); } } /* * Put cursor on first filtered line for ":range!cmd". * Adjust '[ and '] (set by buf_write()). */ curwin->w_cursor.lnum = line1; del_lines(linecount, TRUE); curbuf->b_op_start.lnum -= linecount; // adjust '[ curbuf->b_op_end.lnum -= linecount; // adjust '] write_lnum_adjust(-linecount); // adjust last line // for next write #ifdef FEAT_FOLDING foldUpdate(curwin, curbuf->b_op_start.lnum, curbuf->b_op_end.lnum); #endif } else { /* * Put cursor on last new line for ":r !cmd". */ linecount = curbuf->b_op_end.lnum - curbuf->b_op_start.lnum + 1; curwin->w_cursor.lnum = curbuf->b_op_end.lnum; } beginline(BL_WHITE | BL_FIX); // cursor on first non-blank --no_wait_return; if (linecount > p_report) { if (do_in) { vim_snprintf(msg_buf, sizeof(msg_buf), _("%ld lines filtered"), (long)linecount); if (msg(msg_buf) && !msg_scroll) // save message to display it after redraw set_keep_msg((char_u *)msg_buf, 0); } else msgmore((long)linecount); } } else { error: // put cursor back in same position for ":w !cmd" curwin->w_cursor = cursor_save; --no_wait_return; wait_return(FALSE); } filterend: cmdmod.lockmarks = save_lockmarks; if (curbuf != old_curbuf) { --no_wait_return; emsg(_("E135: *Filter* Autocommands must not change current buffer")); } else if (cmdmod.lockmarks) { curbuf->b_op_start = orig_start; curbuf->b_op_end = orig_end; } if (itmp != NULL) mch_remove(itmp); if (otmp != NULL) mch_remove(otmp); vim_free(itmp); vim_free(otmp); } /* * Call a shell to execute a command. * When "cmd" is NULL start an interactive shell. */ void do_shell( char_u *cmd, int flags) // may be SHELL_DOOUT when output is redirected { buf_T *buf; #if !defined(FEAT_GUI_MSWIN) || defined(VIMDLL) int save_nwr; #endif #ifdef MSWIN int winstart = FALSE; int keep_termcap = FALSE; #endif /* * Disallow shell commands for "rvim". * Disallow shell commands from .exrc and .vimrc in current directory for * security reasons. */ if (check_restricted() || check_secure()) { msg_end(); return; } #ifdef MSWIN /* * Check if ":!start" is used. This implies not stopping termcap mode. */ if (cmd != NULL) keep_termcap = winstart = (STRNICMP(cmd, "start ", 6) == 0); # if defined(FEAT_GUI) && defined(FEAT_TERMINAL) // Don't stop termcap mode when using a terminal window for the shell. if (gui.in_use && vim_strchr(p_go, GO_TERMINAL) != NULL) keep_termcap = TRUE; # endif #endif /* * For autocommands we want to get the output on the current screen, to * avoid having to type return below. */ msg_putchar('\r'); // put cursor at start of line if (!autocmd_busy) { #ifdef MSWIN if (!keep_termcap) #endif stoptermcap(); } #ifdef MSWIN if (!winstart) #endif msg_putchar('\n'); // may shift screen one line up // warning message before calling the shell if (p_warn && !autocmd_busy && msg_silent == 0) FOR_ALL_BUFFERS(buf) if (bufIsChangedNotTerm(buf)) { #ifdef FEAT_GUI_MSWIN if (!keep_termcap) starttermcap(); // don't want a message box here #endif msg_puts(_("[No write since last change]\n")); #ifdef FEAT_GUI_MSWIN if (!keep_termcap) stoptermcap(); #endif break; } // This windgoto is required for when the '\n' resulted in a "delete line // 1" command to the terminal. if (!swapping_screen()) windgoto(msg_row, msg_col); cursor_on(); (void)call_shell(cmd, SHELL_COOKED | flags); did_check_timestamps = FALSE; need_check_timestamps = TRUE; /* * put the message cursor at the end of the screen, avoids wait_return() * to overwrite the text that the external command showed */ if (!swapping_screen()) { msg_row = Rows - 1; msg_col = 0; } if (autocmd_busy) { if (msg_silent == 0) redraw_later_clear(); } else { /* * For ":sh" there is no need to call wait_return(), just redraw. * Also for the Win32 GUI (the output is in a console window). * Otherwise there is probably text on the screen that the user wants * to read before redrawing, so call wait_return(). */ #if !defined(FEAT_GUI_MSWIN) || defined(VIMDLL) # ifdef VIMDLL if (!gui.in_use) # endif { if (cmd == NULL # ifdef MSWIN || (keep_termcap && !need_wait_return) # endif ) { if (msg_silent == 0) redraw_later_clear(); need_wait_return = FALSE; } else { /* * If we switch screens when starttermcap() is called, we * really want to wait for "hit return to continue". */ save_nwr = no_wait_return; if (swapping_screen()) no_wait_return = FALSE; # ifdef AMIGA wait_return(term_console ? -1 : msg_silent == 0); // see below # else wait_return(msg_silent == 0); # endif no_wait_return = save_nwr; } } #endif // FEAT_GUI_MSWIN #ifdef MSWIN if (!keep_termcap) // if keep_termcap is TRUE didn't stop termcap #endif starttermcap(); // start termcap if not done by wait_return() /* * In an Amiga window redrawing is caused by asking the window size. * If we got an interrupt this will not work. The chance that the * window size is wrong is very small, but we need to redraw the * screen. Don't do this if ':' hit in wait_return(). THIS IS UGLY * but it saves an extra redraw. */ #ifdef AMIGA if (skip_redraw) // ':' hit in wait_return() { if (msg_silent == 0) redraw_later_clear(); } else if (term_console) { OUT_STR(IF_EB("\033[0 q", ESC_STR "[0 q")); // get window size if (got_int && msg_silent == 0) redraw_later_clear(); // if got_int is TRUE, redraw needed else must_redraw = 0; // no extra redraw needed } #endif } // display any error messages now display_errors(); apply_autocmds(EVENT_SHELLCMDPOST, NULL, NULL, FALSE, curbuf); } #if !defined(UNIX) static char_u * find_pipe(char_u *cmd) { char_u *p; int inquote = FALSE; for (p = cmd; *p != NUL; ++p) { if (!inquote && *p == '|') return p; if (*p == '"') inquote = !inquote; else if (rem_backslash(p)) ++p; } return NULL; } #endif /* * Create a shell command from a command string, input redirection file and * output redirection file. * Returns an allocated string with the shell command, or NULL for failure. */ char_u * make_filter_cmd( char_u *cmd, // command char_u *itmp, // NULL or name of input file char_u *otmp) // NULL or name of output file { char_u *buf; long_u len; #if defined(UNIX) int is_fish_shell; char_u *shell_name = get_isolated_shell_name(); // Account for fish's different syntax for subshells is_fish_shell = (fnamecmp(shell_name, "fish") == 0); vim_free(shell_name); if (is_fish_shell) len = (long_u)STRLEN(cmd) + 13; // "begin; " + "; end" + NUL else #endif len = (long_u)STRLEN(cmd) + 3; // "()" + NUL if (itmp != NULL) len += (long_u)STRLEN(itmp) + 9; // " { < " + " } " if (otmp != NULL) len += (long_u)STRLEN(otmp) + (long_u)STRLEN(p_srr) + 2; // " " buf = alloc(len); if (buf == NULL) return NULL; #if defined(UNIX) /* * Put braces around the command (for concatenated commands) when * redirecting input and/or output. */ if (itmp != NULL || otmp != NULL) { if (is_fish_shell) vim_snprintf((char *)buf, len, "begin; %s; end", (char *)cmd); else vim_snprintf((char *)buf, len, "(%s)", (char *)cmd); } else STRCPY(buf, cmd); if (itmp != NULL) { STRCAT(buf, " < "); STRCAT(buf, itmp); } #else // For shells that don't understand braces around commands, at least allow // the use of commands in a pipe. if (*p_sxe != NUL && *p_sxq == '(') { if (itmp != NULL || otmp != NULL) vim_snprintf((char *)buf, len, "(%s)", (char *)cmd); else STRCPY(buf, cmd); if (itmp != NULL) { STRCAT(buf, " < "); STRCAT(buf, itmp); } } else { STRCPY(buf, cmd); if (itmp != NULL) { char_u *p; // If there is a pipe, we have to put the '<' in front of it. // Don't do this when 'shellquote' is not empty, otherwise the // redirection would be inside the quotes. if (*p_shq == NUL) { p = find_pipe(buf); if (p != NULL) *p = NUL; } STRCAT(buf, " <"); // " < " causes problems on Amiga STRCAT(buf, itmp); if (*p_shq == NUL) { p = find_pipe(cmd); if (p != NULL) { STRCAT(buf, " "); // insert a space before the '|' for DOS STRCAT(buf, p); } } } } #endif if (otmp != NULL) append_redir(buf, (int)len, p_srr, otmp); return buf; } /* * Append output redirection for file "fname" to the end of string buffer * "buf[buflen]" * Works with the 'shellredir' and 'shellpipe' options. * The caller should make sure that there is enough room: * STRLEN(opt) + STRLEN(fname) + 3 */ void append_redir( char_u *buf, int buflen, char_u *opt, char_u *fname) { char_u *p; char_u *end; end = buf + STRLEN(buf); // find "%s" for (p = opt; (p = vim_strchr(p, '%')) != NULL; ++p) { if (p[1] == 's') // found %s break; if (p[1] == '%') // skip %% ++p; } if (p != NULL) { #ifdef MSWIN *end++ = ' '; // not really needed? Not with sh, ksh or bash #endif vim_snprintf((char *)end, (size_t)(buflen - (end - buf)), (char *)opt, (char *)fname); } else vim_snprintf((char *)end, (size_t)(buflen - (end - buf)), #ifdef FEAT_QUICKFIX " %s %s", #else " %s%s", // " > %s" causes problems on Amiga #endif (char *)opt, (char *)fname); } /* * Implementation of ":fixdel", also used by get_stty(). * <BS> resulting <Del> * ^? ^H * not ^? ^? */ void do_fixdel(exarg_T *eap UNUSED) { char_u *p; p = find_termcode((char_u *)"kb"); add_termcode((char_u *)"kD", p != NULL && *p == DEL ? (char_u *)CTRL_H_STR : DEL_STR, FALSE); } void print_line_no_prefix( linenr_T lnum, int use_number, int list) { char numbuf[30]; if (curwin->w_p_nu || use_number) { vim_snprintf(numbuf, sizeof(numbuf), "%*ld ", number_width(curwin), (long)lnum); msg_puts_attr(numbuf, HL_ATTR(HLF_N)); // Highlight line nrs } msg_prt_line(ml_get(lnum), list); } /* * Print a text line. Also in silent mode ("ex -s"). */ void print_line(linenr_T lnum, int use_number, int list) { int save_silent = silent_mode; // apply :filter /pat/ if (message_filtered(ml_get(lnum))) return; msg_start(); silent_mode = FALSE; info_message = TRUE; // use mch_msg(), not mch_errmsg() print_line_no_prefix(lnum, use_number, list); if (save_silent) { msg_putchar('\n'); cursor_on(); // msg_start() switches it off out_flush(); silent_mode = save_silent; } info_message = FALSE; } int rename_buffer(char_u *new_fname) { char_u *fname, *sfname, *xfname; buf_T *buf; buf = curbuf; apply_autocmds(EVENT_BUFFILEPRE, NULL, NULL, FALSE, curbuf); // buffer changed, don't change name now if (buf != curbuf) return FAIL; #ifdef FEAT_EVAL if (aborting()) // autocmds may abort script processing return FAIL; #endif /* * The name of the current buffer will be changed. * A new (unlisted) buffer entry needs to be made to hold the old file * name, which will become the alternate file name. * But don't set the alternate file name if the buffer didn't have a * name. */ fname = curbuf->b_ffname; sfname = curbuf->b_sfname; xfname = curbuf->b_fname; curbuf->b_ffname = NULL; curbuf->b_sfname = NULL; if (setfname(curbuf, new_fname, NULL, TRUE) == FAIL) { curbuf->b_ffname = fname; curbuf->b_sfname = sfname; return FAIL; } curbuf->b_flags |= BF_NOTEDITED; if (xfname != NULL && *xfname != NUL) { buf = buflist_new(fname, xfname, curwin->w_cursor.lnum, 0); if (buf != NULL && !cmdmod.keepalt) curwin->w_alt_fnum = buf->b_fnum; } vim_free(fname); vim_free(sfname); apply_autocmds(EVENT_BUFFILEPOST, NULL, NULL, FALSE, curbuf); // Change directories when the 'acd' option is set. DO_AUTOCHDIR; return OK; } /* * ":file[!] [fname]". */ void ex_file(exarg_T *eap) { // ":0file" removes the file name. Check for illegal uses ":3file", // "0file name", etc. if (eap->addr_count > 0 && (*eap->arg != NUL || eap->line2 > 0 || eap->addr_count > 1)) { emsg(_(e_invarg)); return; } if (*eap->arg != NUL || eap->addr_count == 1) { if (rename_buffer(eap->arg) == FAIL) return; redraw_tabline = TRUE; } // print file name if no argument or 'F' is not in 'shortmess' if (*eap->arg == NUL || !shortmess(SHM_FILEINFO)) fileinfo(FALSE, FALSE, eap->forceit); } /* * ":update". */ void ex_update(exarg_T *eap) { if (curbufIsChanged()) (void)do_write(eap); } /* * ":write" and ":saveas". */ void ex_write(exarg_T *eap) { if (eap->cmdidx == CMD_saveas) { // :saveas does not take a range, uses all lines. eap->line1 = 1; eap->line2 = curbuf->b_ml.ml_line_count; } if (eap->usefilter) // input lines to shell command do_bang(1, eap, FALSE, TRUE, FALSE); else (void)do_write(eap); } /* * write current buffer to file 'eap->arg' * if 'eap->append' is TRUE, append to the file * * if *eap->arg == NUL write to current file * * return FAIL for failure, OK otherwise */ int do_write(exarg_T *eap) { int other; char_u *fname = NULL; // init to shut up gcc char_u *ffname; int retval = FAIL; char_u *free_fname = NULL; #ifdef FEAT_BROWSE char_u *browse_file = NULL; #endif buf_T *alt_buf = NULL; int name_was_missing; if (not_writing()) // check 'write' option return FAIL; ffname = eap->arg; #ifdef FEAT_BROWSE if (cmdmod.browse && !exiting) { browse_file = do_browse(BROWSE_SAVE, (char_u *)_("Save As"), ffname, NULL, NULL, NULL, curbuf); if (browse_file == NULL) goto theend; ffname = browse_file; } #endif if (*ffname == NUL) { if (eap->cmdidx == CMD_saveas) { emsg(_(e_argreq)); goto theend; } other = FALSE; } else { fname = ffname; free_fname = fix_fname(ffname); /* * When out-of-memory, keep unexpanded file name, because we MUST be * able to write the file in this situation. */ if (free_fname != NULL) ffname = free_fname; other = otherfile(ffname); } /* * If we have a new file, put its name in the list of alternate file names. */ if (other) { if (vim_strchr(p_cpo, CPO_ALTWRITE) != NULL || eap->cmdidx == CMD_saveas) alt_buf = setaltfname(ffname, fname, (linenr_T)1); else alt_buf = buflist_findname(ffname); if (alt_buf != NULL && alt_buf->b_ml.ml_mfp != NULL) { // Overwriting a file that is loaded in another buffer is not a // good idea. emsg(_(e_bufloaded)); goto theend; } } /* * Writing to the current file is not allowed in readonly mode * and a file name is required. * "nofile" and "nowrite" buffers cannot be written implicitly either. */ if (!other && ( #ifdef FEAT_QUICKFIX bt_dontwrite_msg(curbuf) || #endif check_fname() == FAIL || check_readonly(&eap->forceit, curbuf))) goto theend; if (!other) { ffname = curbuf->b_ffname; fname = curbuf->b_fname; /* * Not writing the whole file is only allowed with '!'. */ if ( (eap->line1 != 1 || eap->line2 != curbuf->b_ml.ml_line_count) && !eap->forceit && !eap->append && !p_wa) { #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) if (p_confirm || cmdmod.confirm) { if (vim_dialog_yesno(VIM_QUESTION, NULL, (char_u *)_("Write partial file?"), 2) != VIM_YES) goto theend; eap->forceit = TRUE; } else #endif { emsg(_("E140: Use ! to write partial buffer")); goto theend; } } } if (check_overwrite(eap, curbuf, fname, ffname, other) == OK) { if (eap->cmdidx == CMD_saveas && alt_buf != NULL) { buf_T *was_curbuf = curbuf; apply_autocmds(EVENT_BUFFILEPRE, NULL, NULL, FALSE, curbuf); apply_autocmds(EVENT_BUFFILEPRE, NULL, NULL, FALSE, alt_buf); #ifdef FEAT_EVAL if (curbuf != was_curbuf || aborting()) #else if (curbuf != was_curbuf) #endif { // buffer changed, don't change name now retval = FAIL; goto theend; } // Exchange the file names for the current and the alternate // buffer. This makes it look like we are now editing the buffer // under the new name. Must be done before buf_write(), because // if there is no file name and 'cpo' contains 'F', it will set // the file name. fname = alt_buf->b_fname; alt_buf->b_fname = curbuf->b_fname; curbuf->b_fname = fname; fname = alt_buf->b_ffname; alt_buf->b_ffname = curbuf->b_ffname; curbuf->b_ffname = fname; fname = alt_buf->b_sfname; alt_buf->b_sfname = curbuf->b_sfname; curbuf->b_sfname = fname; buf_name_changed(curbuf); apply_autocmds(EVENT_BUFFILEPOST, NULL, NULL, FALSE, curbuf); apply_autocmds(EVENT_BUFFILEPOST, NULL, NULL, FALSE, alt_buf); if (!alt_buf->b_p_bl) { alt_buf->b_p_bl = TRUE; apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, alt_buf); } #ifdef FEAT_EVAL if (curbuf != was_curbuf || aborting()) #else if (curbuf != was_curbuf) #endif { // buffer changed, don't write the file retval = FAIL; goto theend; } // If 'filetype' was empty try detecting it now. if (*curbuf->b_p_ft == NUL) { if (au_has_group((char_u *)"filetypedetect")) (void)do_doautocmd((char_u *)"filetypedetect BufRead", TRUE, NULL); do_modelines(0); } // Autocommands may have changed buffer names, esp. when // 'autochdir' is set. fname = curbuf->b_sfname; } name_was_missing = curbuf->b_ffname == NULL; retval = buf_write(curbuf, ffname, fname, eap->line1, eap->line2, eap, eap->append, eap->forceit, TRUE, FALSE); // After ":saveas fname" reset 'readonly'. if (eap->cmdidx == CMD_saveas) { if (retval == OK) { curbuf->b_p_ro = FALSE; redraw_tabline = TRUE; } } // Change directories when the 'acd' option is set and the file name // got changed or set. if (eap->cmdidx == CMD_saveas || name_was_missing) DO_AUTOCHDIR; } theend: #ifdef FEAT_BROWSE vim_free(browse_file); #endif vim_free(free_fname); return retval; } /* * Check if it is allowed to overwrite a file. If b_flags has BF_NOTEDITED, * BF_NEW or BF_READERR, check for overwriting current file. * May set eap->forceit if a dialog says it's OK to overwrite. * Return OK if it's OK, FAIL if it is not. */ int check_overwrite( exarg_T *eap, buf_T *buf, char_u *fname, // file name to be used (can differ from // buf->ffname) char_u *ffname, // full path version of fname int other) // writing under other name { /* * Write to another file or b_flags set or not writing the whole file: * overwriting only allowed with '!'. */ if ( (other || (buf->b_flags & BF_NOTEDITED) || ((buf->b_flags & BF_NEW) && vim_strchr(p_cpo, CPO_OVERNEW) == NULL) || (buf->b_flags & BF_READERR)) && !p_wa && vim_fexists(ffname)) { if (!eap->forceit && !eap->append) { #ifdef UNIX // with UNIX it is possible to open a directory if (mch_isdir(ffname)) { semsg(_(e_isadir2), ffname); return FAIL; } #endif #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) if (p_confirm || cmdmod.confirm) { char_u buff[DIALOG_MSG_SIZE]; dialog_msg(buff, _("Overwrite existing file \"%s\"?"), fname); if (vim_dialog_yesno(VIM_QUESTION, NULL, buff, 2) != VIM_YES) return FAIL; eap->forceit = TRUE; } else #endif { emsg(_(e_exists)); return FAIL; } } // For ":w! filename" check that no swap file exists for "filename". if (other && !emsg_silent) { char_u *dir; char_u *p; int r; char_u *swapname; // We only try the first entry in 'directory', without checking if // it's writable. If the "." directory is not writable the write // will probably fail anyway. // Use 'shortname' of the current buffer, since there is no buffer // for the written file. if (*p_dir == NUL) { dir = alloc(5); if (dir == NULL) return FAIL; STRCPY(dir, "."); } else { dir = alloc(MAXPATHL); if (dir == NULL) return FAIL; p = p_dir; copy_option_part(&p, dir, MAXPATHL, ","); } swapname = makeswapname(fname, ffname, curbuf, dir); vim_free(dir); r = vim_fexists(swapname); if (r) { #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) if (p_confirm || cmdmod.confirm) { char_u buff[DIALOG_MSG_SIZE]; dialog_msg(buff, _("Swap file \"%s\" exists, overwrite anyway?"), swapname); if (vim_dialog_yesno(VIM_QUESTION, NULL, buff, 2) != VIM_YES) { vim_free(swapname); return FAIL; } eap->forceit = TRUE; } else #endif { semsg(_("E768: Swap file exists: %s (:silent! overrides)"), swapname); vim_free(swapname); return FAIL; } } vim_free(swapname); } } return OK; } /* * Handle ":wnext", ":wNext" and ":wprevious" commands. */ void ex_wnext(exarg_T *eap) { int i; if (eap->cmd[1] == 'n') i = curwin->w_arg_idx + (int)eap->line2; else i = curwin->w_arg_idx - (int)eap->line2; eap->line1 = 1; eap->line2 = curbuf->b_ml.ml_line_count; if (do_write(eap) != FAIL) do_argfile(eap, i); } /* * ":wall", ":wqall" and ":xall": Write all changed files (and exit). */ void do_wqall(exarg_T *eap) { buf_T *buf; int error = 0; int save_forceit = eap->forceit; if (eap->cmdidx == CMD_xall || eap->cmdidx == CMD_wqall) exiting = TRUE; FOR_ALL_BUFFERS(buf) { #ifdef FEAT_TERMINAL if (exiting && term_job_running(buf->b_term)) { no_write_message_nobang(buf); ++error; } else #endif if (bufIsChanged(buf) && !bt_dontwrite(buf)) { /* * Check if there is a reason the buffer cannot be written: * 1. if the 'write' option is set * 2. if there is no file name (even after browsing) * 3. if the 'readonly' is set (even after a dialog) * 4. if overwriting is allowed (even after a dialog) */ if (not_writing()) { ++error; break; } #ifdef FEAT_BROWSE // ":browse wall": ask for file name if there isn't one if (buf->b_ffname == NULL && cmdmod.browse) browse_save_fname(buf); #endif if (buf->b_ffname == NULL) { semsg(_("E141: No file name for buffer %ld"), (long)buf->b_fnum); ++error; } else if (check_readonly(&eap->forceit, buf) || check_overwrite(eap, buf, buf->b_fname, buf->b_ffname, FALSE) == FAIL) { ++error; } else { bufref_T bufref; set_bufref(&bufref, buf); if (buf_write_all(buf, eap->forceit) == FAIL) ++error; // an autocommand may have deleted the buffer if (!bufref_valid(&bufref)) buf = firstbuf; } eap->forceit = save_forceit; // check_overwrite() may set it } } if (exiting) { if (!error) getout(0); // exit Vim not_exiting(); } } /* * Check the 'write' option. * Return TRUE and give a message when it's not set. */ static int not_writing(void) { if (p_write) return FALSE; emsg(_("E142: File not written: Writing is disabled by 'write' option")); return TRUE; } /* * Check if a buffer is read-only (either 'readonly' option is set or file is * read-only). Ask for overruling in a dialog. Return TRUE and give an error * message when the buffer is readonly. */ static int check_readonly(int *forceit, buf_T *buf) { stat_T st; // Handle a file being readonly when the 'readonly' option is set or when // the file exists and permissions are read-only. // We will send 0777 to check_file_readonly(), as the "perm" variable is // important for device checks but not here. if (!*forceit && (buf->b_p_ro || (mch_stat((char *)buf->b_ffname, &st) >= 0 && check_file_readonly(buf->b_ffname, 0777)))) { #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) if ((p_confirm || cmdmod.confirm) && buf->b_fname != NULL) { char_u buff[DIALOG_MSG_SIZE]; if (buf->b_p_ro) dialog_msg(buff, _("'readonly' option is set for \"%s\".\nDo you wish to write anyway?"), buf->b_fname); else dialog_msg(buff, _("File permissions of \"%s\" are read-only.\nIt may still be possible to write it.\nDo you wish to try?"), buf->b_fname); if (vim_dialog_yesno(VIM_QUESTION, NULL, buff, 2) == VIM_YES) { // Set forceit, to force the writing of a readonly file *forceit = TRUE; return FALSE; } else return TRUE; } else #endif if (buf->b_p_ro) emsg(_(e_readonly)); else semsg(_("E505: \"%s\" is read-only (add ! to override)"), buf->b_fname); return TRUE; } return FALSE; } /* * Try to abandon the current file and edit a new or existing file. * "fnum" is the number of the file, if zero use "ffname_arg"/"sfname_arg". * "lnum" is the line number for the cursor in the new file (if non-zero). * * Return: * GETFILE_ERROR for "normal" error, * GETFILE_NOT_WRITTEN for "not written" error, * GETFILE_SAME_FILE for success * GETFILE_OPEN_OTHER for successfully opening another file. */ int getfile( int fnum, char_u *ffname_arg, char_u *sfname_arg, int setpm, linenr_T lnum, int forceit) { char_u *ffname = ffname_arg; char_u *sfname = sfname_arg; int other; int retval; char_u *free_me = NULL; if (text_locked()) return GETFILE_ERROR; if (curbuf_locked()) return GETFILE_ERROR; if (fnum == 0) { // make ffname full path, set sfname fname_expand(curbuf, &ffname, &sfname); other = otherfile(ffname); free_me = ffname; // has been allocated, free() later } else other = (fnum != curbuf->b_fnum); if (other) ++no_wait_return; // don't wait for autowrite message if (other && !forceit && curbuf->b_nwindows == 1 && !buf_hide(curbuf) && curbufIsChanged() && autowrite(curbuf, forceit) == FAIL) { #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) if (p_confirm && p_write) dialog_changed(curbuf, FALSE); if (curbufIsChanged()) #endif { if (other) --no_wait_return; no_write_message(); retval = GETFILE_NOT_WRITTEN; // file has been changed goto theend; } } if (other) --no_wait_return; if (setpm) setpcmark(); if (!other) { if (lnum != 0) curwin->w_cursor.lnum = lnum; check_cursor_lnum(); beginline(BL_SOL | BL_FIX); retval = GETFILE_SAME_FILE; // it's in the same file } else if (do_ecmd(fnum, ffname, sfname, NULL, lnum, (buf_hide(curbuf) ? ECMD_HIDE : 0) + (forceit ? ECMD_FORCEIT : 0), curwin) == OK) retval = GETFILE_OPEN_OTHER; // opened another file else retval = GETFILE_ERROR; // error encountered theend: vim_free(free_me); return retval; } /* * start editing a new file * * fnum: file number; if zero use ffname/sfname * ffname: the file name * - full path if sfname used, * - any file name if sfname is NULL * - empty string to re-edit with the same file name (but may be * in a different directory) * - NULL to start an empty buffer * sfname: the short file name (or NULL) * eap: contains the command to be executed after loading the file and * forced 'ff' and 'fenc' * newlnum: if > 0: put cursor on this line number (if possible) * if ECMD_LASTL: use last position in loaded file * if ECMD_LAST: use last position in all files * if ECMD_ONE: use first line * flags: * ECMD_HIDE: if TRUE don't free the current buffer * ECMD_SET_HELP: set b_help flag of (new) buffer before opening file * ECMD_OLDBUF: use existing buffer if it exists * ECMD_FORCEIT: ! used for Ex command * ECMD_ADDBUF: don't edit, just add to buffer list * oldwin: Should be "curwin" when editing a new buffer in the current * window, NULL when splitting the window first. When not NULL info * of the previous buffer for "oldwin" is stored. * * return FAIL for failure, OK otherwise */ int do_ecmd( int fnum, char_u *ffname, char_u *sfname, exarg_T *eap, // can be NULL! linenr_T newlnum, int flags, win_T *oldwin) { int other_file; // TRUE if editing another file int oldbuf; // TRUE if using existing buffer int auto_buf = FALSE; // TRUE if autocommands brought us // into the buffer unexpectedly char_u *new_name = NULL; #if defined(FEAT_EVAL) int did_set_swapcommand = FALSE; #endif buf_T *buf; bufref_T bufref; bufref_T old_curbuf; char_u *free_fname = NULL; #ifdef FEAT_BROWSE char_u *browse_file = NULL; #endif int retval = FAIL; long n; pos_T orig_pos; linenr_T topline = 0; int newcol = -1; int solcol = -1; pos_T *pos; char_u *command = NULL; #ifdef FEAT_SPELL int did_get_winopts = FALSE; #endif int readfile_flags = 0; int did_inc_redrawing_disabled = FALSE; long *so_ptr = curwin->w_p_so >= 0 ? &curwin->w_p_so : &p_so; #ifdef FEAT_PROP_POPUP if (ERROR_IF_TERM_POPUP_WINDOW) return FAIL; #endif if (eap != NULL) command = eap->do_ecmd_cmd; set_bufref(&old_curbuf, curbuf); if (fnum != 0) { if (fnum == curbuf->b_fnum) // file is already being edited return OK; // nothing to do other_file = TRUE; } else { #ifdef FEAT_BROWSE if (cmdmod.browse && !exiting) { if ( # ifdef FEAT_GUI !gui.in_use && # endif au_has_group((char_u *)"FileExplorer")) { // No browsing supported but we do have the file explorer: // Edit the directory. if (ffname == NULL || !mch_isdir(ffname)) ffname = (char_u *)"."; } else { browse_file = do_browse(0, (char_u *)_("Edit File"), ffname, NULL, NULL, NULL, curbuf); if (browse_file == NULL) goto theend; ffname = browse_file; } } #endif // if no short name given, use ffname for short name if (sfname == NULL) sfname = ffname; #ifdef USE_FNAME_CASE if (sfname != NULL) fname_case(sfname, 0); // set correct case for sfname #endif if ((flags & ECMD_ADDBUF) && (ffname == NULL || *ffname == NUL)) goto theend; if (ffname == NULL) other_file = TRUE; // there is no file name else if (*ffname == NUL && curbuf->b_ffname == NULL) other_file = FALSE; else { if (*ffname == NUL) // re-edit with same file name { ffname = curbuf->b_ffname; sfname = curbuf->b_fname; } free_fname = fix_fname(ffname); // may expand to full path name if (free_fname != NULL) ffname = free_fname; other_file = otherfile(ffname); } } /* * If the file was changed we may not be allowed to abandon it: * - if we are going to re-edit the same file * - or if we are the only window on this file and if ECMD_HIDE is FALSE */ if ( ((!other_file && !(flags & ECMD_OLDBUF)) || (curbuf->b_nwindows == 1 && !(flags & (ECMD_HIDE | ECMD_ADDBUF)))) && check_changed(curbuf, (p_awa ? CCGD_AW : 0) | (other_file ? 0 : CCGD_MULTWIN) | ((flags & ECMD_FORCEIT) ? CCGD_FORCEIT : 0) | (eap == NULL ? 0 : CCGD_EXCMD))) { if (fnum == 0 && other_file && ffname != NULL) (void)setaltfname(ffname, sfname, newlnum < 0 ? 0 : newlnum); goto theend; } /* * End Visual mode before switching to another buffer, so the text can be * copied into the GUI selection buffer. */ reset_VIsual(); #if defined(FEAT_EVAL) if ((command != NULL || newlnum > (linenr_T)0) && *get_vim_var_str(VV_SWAPCOMMAND) == NUL) { int len; char_u *p; // Set v:swapcommand for the SwapExists autocommands. if (command != NULL) len = (int)STRLEN(command) + 3; else len = 30; p = alloc(len); if (p != NULL) { if (command != NULL) vim_snprintf((char *)p, len, ":%s\r", command); else vim_snprintf((char *)p, len, "%ldG", (long)newlnum); set_vim_var_string(VV_SWAPCOMMAND, p, -1); did_set_swapcommand = TRUE; vim_free(p); } } #endif /* * If we are starting to edit another file, open a (new) buffer. * Otherwise we re-use the current buffer. */ if (other_file) { if (!(flags & ECMD_ADDBUF)) { if (!cmdmod.keepalt) curwin->w_alt_fnum = curbuf->b_fnum; if (oldwin != NULL) buflist_altfpos(oldwin); } if (fnum) buf = buflist_findnr(fnum); else { if (flags & ECMD_ADDBUF) { linenr_T tlnum = 1L; if (command != NULL) { tlnum = atol((char *)command); if (tlnum <= 0) tlnum = 1L; } (void)buflist_new(ffname, sfname, tlnum, BLN_LISTED); goto theend; } buf = buflist_new(ffname, sfname, 0L, BLN_CURBUF | ((flags & ECMD_SET_HELP) ? 0 : BLN_LISTED)); // autocommands may change curwin and curbuf if (oldwin != NULL) oldwin = curwin; set_bufref(&old_curbuf, curbuf); } if (buf == NULL) goto theend; if (buf->b_ml.ml_mfp == NULL) // no memfile yet { oldbuf = FALSE; } else // existing memfile { oldbuf = TRUE; set_bufref(&bufref, buf); (void)buf_check_timestamp(buf, FALSE); // Check if autocommands made the buffer invalid or changed the // current buffer. if (!bufref_valid(&bufref) || curbuf != old_curbuf.br_buf) goto theend; #ifdef FEAT_EVAL if (aborting()) // autocmds may abort script processing goto theend; #endif } // May jump to last used line number for a loaded buffer or when asked // for explicitly if ((oldbuf && newlnum == ECMD_LASTL) || newlnum == ECMD_LAST) { pos = buflist_findfpos(buf); newlnum = pos->lnum; solcol = pos->col; } /* * Make the (new) buffer the one used by the current window. * If the old buffer becomes unused, free it if ECMD_HIDE is FALSE. * If the current buffer was empty and has no file name, curbuf * is returned by buflist_new(), nothing to do here. */ if (buf != curbuf) { /* * Be careful: The autocommands may delete any buffer and change * the current buffer. * - If the buffer we are going to edit is deleted, give up. * - If the current buffer is deleted, prefer to load the new * buffer when loading a buffer is required. This avoids * loading another buffer which then must be closed again. * - If we ended up in the new buffer already, need to skip a few * things, set auto_buf. */ if (buf->b_fname != NULL) new_name = vim_strsave(buf->b_fname); set_bufref(&au_new_curbuf, buf); apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); if (!bufref_valid(&au_new_curbuf)) { // new buffer has been deleted delbuf_msg(new_name); // frees new_name goto theend; } #ifdef FEAT_EVAL if (aborting()) // autocmds may abort script processing { vim_free(new_name); goto theend; } #endif if (buf == curbuf) // already in new buffer auto_buf = TRUE; else { win_T *the_curwin = curwin; // Set the w_closing flag to avoid that autocommands close the // window. And set b_locked for the same reason. the_curwin->w_closing = TRUE; ++buf->b_locked; if (curbuf == old_curbuf.br_buf) buf_copy_options(buf, BCO_ENTER); // Close the link to the current buffer. This will set // oldwin->w_buffer to NULL. u_sync(FALSE); close_buffer(oldwin, curbuf, (flags & ECMD_HIDE) ? 0 : DOBUF_UNLOAD, FALSE, FALSE); the_curwin->w_closing = FALSE; --buf->b_locked; #ifdef FEAT_EVAL // autocmds may abort script processing if (aborting() && curwin->w_buffer != NULL) { vim_free(new_name); goto theend; } #endif // Be careful again, like above. if (!bufref_valid(&au_new_curbuf)) { // new buffer has been deleted delbuf_msg(new_name); // frees new_name goto theend; } if (buf == curbuf) // already in new buffer auto_buf = TRUE; else { #ifdef FEAT_SYN_HL /* * <VN> We could instead free the synblock * and re-attach to buffer, perhaps. */ if (curwin->w_buffer == NULL || curwin->w_s == &(curwin->w_buffer->b_s)) curwin->w_s = &(buf->b_s); #endif curwin->w_buffer = buf; curbuf = buf; ++curbuf->b_nwindows; // Set 'fileformat', 'binary' and 'fenc' when forced. if (!oldbuf && eap != NULL) { set_file_options(TRUE, eap); set_forced_fenc(eap); } } // May get the window options from the last time this buffer // was in this window (or another window). If not used // before, reset the local window options to the global // values. Also restores old folding stuff. get_winopts(curbuf); #ifdef FEAT_SPELL did_get_winopts = TRUE; #endif } vim_free(new_name); au_new_curbuf.br_buf = NULL; au_new_curbuf.br_buf_free_count = 0; } curwin->w_pcmark.lnum = 1; curwin->w_pcmark.col = 0; } else // !other_file { if ((flags & ECMD_ADDBUF) || check_fname() == FAIL) goto theend; oldbuf = (flags & ECMD_OLDBUF); } // Don't redraw until the cursor is in the right line, otherwise // autocommands may cause ml_get errors. ++RedrawingDisabled; did_inc_redrawing_disabled = TRUE; buf = curbuf; if ((flags & ECMD_SET_HELP) || keep_help_flag) { prepare_help_buffer(); } else { // Don't make a buffer listed if it's a help buffer. Useful when // using CTRL-O to go back to a help file. if (!curbuf->b_help) set_buflisted(TRUE); } // If autocommands change buffers under our fingers, forget about // editing the file. if (buf != curbuf) goto theend; #ifdef FEAT_EVAL if (aborting()) // autocmds may abort script processing goto theend; #endif // Since we are starting to edit a file, consider the filetype to be // unset. Helps for when an autocommand changes files and expects syntax // highlighting to work in the other file. did_filetype = FALSE; /* * other_file oldbuf * FALSE FALSE re-edit same file, buffer is re-used * FALSE TRUE re-edit same file, nothing changes * TRUE FALSE start editing new file, new buffer * TRUE TRUE start editing in existing buffer (nothing to do) */ if (!other_file && !oldbuf) // re-use the buffer { set_last_cursor(curwin); // may set b_last_cursor if (newlnum == ECMD_LAST || newlnum == ECMD_LASTL) { newlnum = curwin->w_cursor.lnum; solcol = curwin->w_cursor.col; } buf = curbuf; if (buf->b_fname != NULL) new_name = vim_strsave(buf->b_fname); else new_name = NULL; set_bufref(&bufref, buf); if (p_ur < 0 || curbuf->b_ml.ml_line_count <= p_ur) { // Save all the text, so that the reload can be undone. // Sync first so that this is a separate undo-able action. u_sync(FALSE); if (u_savecommon(0, curbuf->b_ml.ml_line_count + 1, 0, TRUE) == FAIL) { vim_free(new_name); goto theend; } u_unchanged(curbuf); buf_freeall(curbuf, BFA_KEEP_UNDO); // tell readfile() not to clear or reload undo info readfile_flags = READ_KEEP_UNDO; } else buf_freeall(curbuf, 0); // free all things for buffer // If autocommands deleted the buffer we were going to re-edit, give // up and jump to the end. if (!bufref_valid(&bufref)) { delbuf_msg(new_name); // frees new_name goto theend; } vim_free(new_name); // If autocommands change buffers under our fingers, forget about // re-editing the file. Should do the buf_clear_file(), but perhaps // the autocommands changed the buffer... if (buf != curbuf) goto theend; #ifdef FEAT_EVAL if (aborting()) // autocmds may abort script processing goto theend; #endif buf_clear_file(curbuf); curbuf->b_op_start.lnum = 0; // clear '[ and '] marks curbuf->b_op_end.lnum = 0; } /* * If we get here we are sure to start editing */ // Assume success now retval = OK; /* * Check if we are editing the w_arg_idx file in the argument list. */ check_arg_idx(curwin); if (!auto_buf) { /* * Set cursor and init window before reading the file and executing * autocommands. This allows for the autocommands to position the * cursor. */ curwin_init(); #ifdef FEAT_FOLDING // It's possible that all lines in the buffer changed. Need to update // automatic folding for all windows where it's used. { win_T *win; tabpage_T *tp; FOR_ALL_TAB_WINDOWS(tp, win) if (win->w_buffer == curbuf) foldUpdateAll(win); } #endif // Change directories when the 'acd' option is set. DO_AUTOCHDIR; /* * Careful: open_buffer() and apply_autocmds() may change the current * buffer and window. */ orig_pos = curwin->w_cursor; topline = curwin->w_topline; if (!oldbuf) // need to read the file { #ifdef FEAT_PROP_POPUP // Don't use the swap-exists dialog for a popup window, can't edit // the buffer. if (WIN_IS_POPUP(curwin)) curbuf->b_flags |= BF_NO_SEA; #endif swap_exists_action = SEA_DIALOG; curbuf->b_flags |= BF_CHECK_RO; // set/reset 'ro' flag /* * Open the buffer and read the file. */ #if defined(FEAT_EVAL) if (should_abort(open_buffer(FALSE, eap, readfile_flags))) retval = FAIL; #else (void)open_buffer(FALSE, eap, readfile_flags); #endif #ifdef FEAT_PROP_POPUP curbuf->b_flags &= ~BF_NO_SEA; #endif if (swap_exists_action == SEA_QUIT) retval = FAIL; handle_swap_exists(&old_curbuf); } else { // Read the modelines, but only to set window-local options. Any // buffer-local options have already been set and may have been // changed by the user. do_modelines(OPT_WINONLY); apply_autocmds_retval(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf, &retval); apply_autocmds_retval(EVENT_BUFWINENTER, NULL, NULL, FALSE, curbuf, &retval); } check_arg_idx(curwin); // If autocommands change the cursor position or topline, we should // keep it. Also when it moves within a line. But not when it moves // to the first non-blank. if (!EQUAL_POS(curwin->w_cursor, orig_pos)) { char_u *text = ml_get_curline(); if (curwin->w_cursor.lnum != orig_pos.lnum || curwin->w_cursor.col != (int)(skipwhite(text) - text)) { newlnum = curwin->w_cursor.lnum; newcol = curwin->w_cursor.col; } } if (curwin->w_topline == topline) topline = 0; // Even when cursor didn't move we need to recompute topline. changed_line_abv_curs(); #ifdef FEAT_TITLE maketitle(); #endif #if defined(FEAT_PROP_POPUP) && defined(FEAT_QUICKFIX) if (WIN_IS_POPUP(curwin) && curwin->w_p_pvw && retval != FAIL) popup_set_title(curwin); #endif } #ifdef FEAT_DIFF // Tell the diff stuff that this buffer is new and/or needs updating. // Also needed when re-editing the same buffer, because unloading will // have removed it as a diff buffer. if (curwin->w_p_diff) { diff_buf_add(curbuf); diff_invalidate(curbuf); } #endif #ifdef FEAT_SPELL // If the window options were changed may need to set the spell language. // Can only do this after the buffer has been properly setup. if (did_get_winopts && curwin->w_p_spell && *curwin->w_s->b_p_spl != NUL) (void)did_set_spelllang(curwin); #endif if (command == NULL) { if (newcol >= 0) // position set by autocommands { curwin->w_cursor.lnum = newlnum; curwin->w_cursor.col = newcol; check_cursor(); } else if (newlnum > 0) // line number from caller or old position { curwin->w_cursor.lnum = newlnum; check_cursor_lnum(); if (solcol >= 0 && !p_sol) { // 'sol' is off: Use last known column. curwin->w_cursor.col = solcol; check_cursor_col(); curwin->w_cursor.coladd = 0; curwin->w_set_curswant = TRUE; } else beginline(BL_SOL | BL_FIX); } else // no line number, go to last line in Ex mode { if (exmode_active) curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count; beginline(BL_WHITE | BL_FIX); } } // Check if cursors in other windows on the same buffer are still valid check_lnums(FALSE); /* * Did not read the file, need to show some info about the file. * Do this after setting the cursor. */ if (oldbuf && !auto_buf) { int msg_scroll_save = msg_scroll; // Obey the 'O' flag in 'cpoptions': overwrite any previous file // message. if (shortmess(SHM_OVERALL) && !exiting && p_verbose == 0) msg_scroll = FALSE; if (!msg_scroll) // wait a bit when overwriting an error msg check_for_delay(FALSE); msg_start(); msg_scroll = msg_scroll_save; msg_scrolled_ign = TRUE; if (!shortmess(SHM_FILEINFO)) fileinfo(FALSE, TRUE, FALSE); msg_scrolled_ign = FALSE; } #ifdef FEAT_VIMINFO curbuf->b_last_used = vim_time(); #endif if (command != NULL) do_cmdline(command, NULL, NULL, DOCMD_VERBOSE); #ifdef FEAT_KEYMAP if (curbuf->b_kmap_state & KEYMAP_INIT) (void)keymap_init(); #endif --RedrawingDisabled; did_inc_redrawing_disabled = FALSE; if (!skip_redraw) { n = *so_ptr; if (topline == 0 && command == NULL) *so_ptr = 9999; // force cursor halfway the window update_topline(); curwin->w_scbind_pos = curwin->w_topline; *so_ptr = n; redraw_curbuf_later(NOT_VALID); // redraw this buffer later } if (p_im) need_start_insertmode = TRUE; #ifdef FEAT_AUTOCHDIR // Change directories when the 'acd' option is set and we aren't already in // that directory (should already be done above). Expect getcwd() to be // faster than calling shorten_fnames() unnecessarily. if (p_acd && curbuf->b_ffname != NULL) { char_u curdir[MAXPATHL]; char_u filedir[MAXPATHL]; vim_strncpy(filedir, curbuf->b_ffname, MAXPATHL - 1); *gettail_sep(filedir) = NUL; if (mch_dirname(curdir, MAXPATHL) != FAIL && vim_fnamecmp(curdir, filedir) != 0) do_autochdir(); } #endif #if defined(FEAT_NETBEANS_INTG) if (curbuf->b_ffname != NULL) { # ifdef FEAT_NETBEANS_INTG if ((flags & ECMD_SET_HELP) != ECMD_SET_HELP) netbeans_file_opened(curbuf); # endif } #endif theend: if (did_inc_redrawing_disabled) --RedrawingDisabled; #if defined(FEAT_EVAL) if (did_set_swapcommand) set_vim_var_string(VV_SWAPCOMMAND, NULL, -1); #endif #ifdef FEAT_BROWSE vim_free(browse_file); #endif vim_free(free_fname); return retval; } static void delbuf_msg(char_u *name) { semsg(_("E143: Autocommands unexpectedly deleted new buffer %s"), name == NULL ? (char_u *)"" : name); vim_free(name); au_new_curbuf.br_buf = NULL; au_new_curbuf.br_buf_free_count = 0; } static int append_indent = 0; // autoindent for first line /* * ":insert" and ":append", also used by ":change" */ void ex_append(exarg_T *eap) { char_u *theline; int did_undo = FALSE; linenr_T lnum = eap->line2; int indent = 0; char_u *p; int vcol; int empty = (curbuf->b_ml.ml_flags & ML_EMPTY); // the ! flag toggles autoindent if (eap->forceit) curbuf->b_p_ai = !curbuf->b_p_ai; // First autoindent comes from the line we start on if (eap->cmdidx != CMD_change && curbuf->b_p_ai && lnum > 0) append_indent = get_indent_lnum(lnum); if (eap->cmdidx != CMD_append) --lnum; // when the buffer is empty need to delete the dummy line if (empty && lnum == 1) lnum = 0; State = INSERT; // behave like in Insert mode if (curbuf->b_p_iminsert == B_IMODE_LMAP) State |= LANGMAP; for (;;) { msg_scroll = TRUE; need_wait_return = FALSE; if (curbuf->b_p_ai) { if (append_indent >= 0) { indent = append_indent; append_indent = -1; } else if (lnum > 0) indent = get_indent_lnum(lnum); } ex_keep_indent = FALSE; if (eap->getline == NULL) { // No getline() function, use the lines that follow. This ends // when there is no more. if (eap->nextcmd == NULL || *eap->nextcmd == NUL) break; p = vim_strchr(eap->nextcmd, NL); if (p == NULL) p = eap->nextcmd + STRLEN(eap->nextcmd); theline = vim_strnsave(eap->nextcmd, p - eap->nextcmd); if (*p != NUL) ++p; eap->nextcmd = p; } else { int save_State = State; // Set State to avoid the cursor shape to be set to INSERT mode // when getline() returns. State = CMDLINE; theline = eap->getline( #ifdef FEAT_EVAL eap->cstack->cs_looplevel > 0 ? -1 : #endif NUL, eap->cookie, indent, TRUE); State = save_State; } lines_left = Rows - 1; if (theline == NULL) break; // Using ^ CTRL-D in getexmodeline() makes us repeat the indent. if (ex_keep_indent) append_indent = indent; // Look for the "." after automatic indent. vcol = 0; for (p = theline; indent > vcol; ++p) { if (*p == ' ') ++vcol; else if (*p == TAB) vcol += 8 - vcol % 8; else break; } if ((p[0] == '.' && p[1] == NUL) || (!did_undo && u_save(lnum, lnum + 1 + (empty ? 1 : 0)) == FAIL)) { vim_free(theline); break; } // don't use autoindent if nothing was typed. if (p[0] == NUL) theline[0] = NUL; did_undo = TRUE; ml_append(lnum, theline, (colnr_T)0, FALSE); appended_lines_mark(lnum + (empty ? 1 : 0), 1L); vim_free(theline); ++lnum; if (empty) { ml_delete(2L); empty = FALSE; } } State = NORMAL; if (eap->forceit) curbuf->b_p_ai = !curbuf->b_p_ai; // "start" is set to eap->line2+1 unless that position is invalid (when // eap->line2 pointed to the end of the buffer and nothing was appended) // "end" is set to lnum when something has been appended, otherwise // it is the same than "start" -- Acevedo if (!cmdmod.lockmarks) { curbuf->b_op_start.lnum = (eap->line2 < curbuf->b_ml.ml_line_count) ? eap->line2 + 1 : curbuf->b_ml.ml_line_count; if (eap->cmdidx != CMD_append) --curbuf->b_op_start.lnum; curbuf->b_op_end.lnum = (eap->line2 < lnum) ? lnum : curbuf->b_op_start.lnum; curbuf->b_op_start.col = curbuf->b_op_end.col = 0; } curwin->w_cursor.lnum = lnum; check_cursor_lnum(); beginline(BL_SOL | BL_FIX); need_wait_return = FALSE; // don't use wait_return() now ex_no_reprint = TRUE; } /* * ":change" */ void ex_change(exarg_T *eap) { linenr_T lnum; if (eap->line2 >= eap->line1 && u_save(eap->line1 - 1, eap->line2 + 1) == FAIL) return; // the ! flag toggles autoindent if (eap->forceit ? !curbuf->b_p_ai : curbuf->b_p_ai) append_indent = get_indent_lnum(eap->line1); for (lnum = eap->line2; lnum >= eap->line1; --lnum) { if (curbuf->b_ml.ml_flags & ML_EMPTY) // nothing to delete break; ml_delete(eap->line1); } // make sure the cursor is not beyond the end of the file now check_cursor_lnum(); deleted_lines_mark(eap->line1, (long)(eap->line2 - lnum)); // ":append" on the line above the deleted lines. eap->line2 = eap->line1; ex_append(eap); } void ex_z(exarg_T *eap) { char_u *x; long bigness; char_u *kind; int minus = 0; linenr_T start, end, curs, i; int j; linenr_T lnum = eap->line2; // Vi compatible: ":z!" uses display height, without a count uses // 'scroll' if (eap->forceit) bigness = curwin->w_height; else if (!ONE_WINDOW) bigness = curwin->w_height - 3; else bigness = curwin->w_p_scr * 2; if (bigness < 1) bigness = 1; x = eap->arg; kind = x; if (*kind == '-' || *kind == '+' || *kind == '=' || *kind == '^' || *kind == '.') ++x; while (*x == '-' || *x == '+') ++x; if (*x != 0) { if (!VIM_ISDIGIT(*x)) { emsg(_("E144: non-numeric argument to :z")); return; } else { bigness = atol((char *)x); // bigness could be < 0 if atol(x) overflows. if (bigness > 2 * curbuf->b_ml.ml_line_count || bigness < 0) bigness = 2 * curbuf->b_ml.ml_line_count; p_window = bigness; if (*kind == '=') bigness += 2; } } // the number of '-' and '+' multiplies the distance if (*kind == '-' || *kind == '+') for (x = kind + 1; *x == *kind; ++x) ; switch (*kind) { case '-': start = lnum - bigness * (linenr_T)(x - kind) + 1; end = start + bigness - 1; curs = end; break; case '=': start = lnum - (bigness + 1) / 2 + 1; end = lnum + (bigness + 1) / 2 - 1; curs = lnum; minus = 1; break; case '^': start = lnum - bigness * 2; end = lnum - bigness; curs = lnum - bigness; break; case '.': start = lnum - (bigness + 1) / 2 + 1; end = lnum + (bigness + 1) / 2 - 1; curs = end; break; default: // '+' start = lnum; if (*kind == '+') start += bigness * (linenr_T)(x - kind - 1) + 1; else if (eap->addr_count == 0) ++start; end = start + bigness - 1; curs = end; break; } if (start < 1) start = 1; if (end > curbuf->b_ml.ml_line_count) end = curbuf->b_ml.ml_line_count; if (curs > curbuf->b_ml.ml_line_count) curs = curbuf->b_ml.ml_line_count; else if (curs < 1) curs = 1; for (i = start; i <= end; i++) { if (minus && i == lnum) { msg_putchar('\n'); for (j = 1; j < Columns; j++) msg_putchar('-'); } print_line(i, eap->flags & EXFLAG_NR, eap->flags & EXFLAG_LIST); if (minus && i == lnum) { msg_putchar('\n'); for (j = 1; j < Columns; j++) msg_putchar('-'); } } if (curwin->w_cursor.lnum != curs) { curwin->w_cursor.lnum = curs; curwin->w_cursor.col = 0; } ex_no_reprint = TRUE; } /* * Check if the restricted flag is set. * If so, give an error message and return TRUE. * Otherwise, return FALSE. */ int check_restricted(void) { if (restricted) { emsg(_("E145: Shell commands and some functionality not allowed in rvim")); return TRUE; } return FALSE; } /* * Check if the secure flag is set (.exrc or .vimrc in current directory). * If so, give an error message and return TRUE. * Otherwise, return FALSE. */ int check_secure(void) { if (secure) { secure = 2; emsg(_(e_curdir)); return TRUE; } #ifdef HAVE_SANDBOX /* * In the sandbox more things are not allowed, including the things * disallowed in secure mode. */ if (sandbox != 0) { emsg(_(e_sandbox)); return TRUE; } #endif return FALSE; } static char_u *old_sub = NULL; // previous substitute pattern static int global_need_beginline; // call beginline() after ":g" /* * Flags that are kept between calls to :substitute. */ typedef struct { int do_all; // do multiple substitutions per line int do_ask; // ask for confirmation int do_count; // count only int do_error; // if false, ignore errors int do_print; // print last line with subs. int do_list; // list last line with subs. int do_number; // list last line with line nr int do_ic; // ignore case flag } subflags_T; /* * Perform a substitution from line eap->line1 to line eap->line2 using the * command pointed to by eap->arg which should be of the form: * * /pattern/substitution/{flags} * * The usual escapes are supported as described in the regexp docs. */ void do_sub(exarg_T *eap) { linenr_T lnum; long i = 0; regmmatch_T regmatch; static subflags_T subflags = {FALSE, FALSE, FALSE, TRUE, FALSE, FALSE, FALSE, 0}; #ifdef FEAT_EVAL subflags_T subflags_save; #endif int save_do_all; // remember user specified 'g' flag int save_do_ask; // remember user specified 'c' flag char_u *pat = NULL, *sub = NULL; // init for GCC int delimiter; int sublen; int got_quit = FALSE; int got_match = FALSE; int temp; int which_pat; char_u *cmd; int save_State; linenr_T first_line = 0; // first changed line linenr_T last_line= 0; // below last changed line AFTER the // change linenr_T old_line_count = curbuf->b_ml.ml_line_count; linenr_T line2; long nmatch; // number of lines in match char_u *sub_firstline; // allocated copy of first sub line int endcolumn = FALSE; // cursor in last column when done pos_T old_cursor = curwin->w_cursor; int start_nsubs; #ifdef FEAT_EVAL int save_ma = 0; #endif cmd = eap->arg; if (!global_busy) { sub_nsubs = 0; sub_nlines = 0; } start_nsubs = sub_nsubs; if (eap->cmdidx == CMD_tilde) which_pat = RE_LAST; // use last used regexp else which_pat = RE_SUBST; // use last substitute regexp // new pattern and substitution if (eap->cmd[0] == 's' && *cmd != NUL && !VIM_ISWHITE(*cmd) && vim_strchr((char_u *)"0123456789cegriIp|\"", *cmd) == NULL) { // don't accept alphanumeric for separator if (isalpha(*cmd)) { emsg(_("E146: Regular expressions can't be delimited by letters")); return; } /* * undocumented vi feature: * "\/sub/" and "\?sub?" use last used search pattern (almost like * //sub/r). "\&sub&" use last substitute pattern (like //sub/). */ if (*cmd == '\\') { ++cmd; if (vim_strchr((char_u *)"/?&", *cmd) == NULL) { emsg(_(e_backslash)); return; } if (*cmd != '&') which_pat = RE_SEARCH; // use last '/' pattern pat = (char_u *)""; // empty search pattern delimiter = *cmd++; // remember delimiter character } else // find the end of the regexp { which_pat = RE_LAST; // use last used regexp delimiter = *cmd++; // remember delimiter character pat = cmd; // remember start of search pat cmd = skip_regexp_ex(cmd, delimiter, p_magic, &eap->arg, NULL); if (cmd[0] == delimiter) // end delimiter found *cmd++ = NUL; // replace it with a NUL } /* * Small incompatibility: vi sees '\n' as end of the command, but in * Vim we want to use '\n' to find/substitute a NUL. */ sub = cmd; // remember the start of the substitution while (cmd[0]) { if (cmd[0] == delimiter) // end delimiter found { *cmd++ = NUL; // replace it with a NUL break; } if (cmd[0] == '\\' && cmd[1] != 0) // skip escaped characters ++cmd; MB_PTR_ADV(cmd); } if (!eap->skip) { // In POSIX vi ":s/pat/%/" uses the previous subst. string. if (STRCMP(sub, "%") == 0 && vim_strchr(p_cpo, CPO_SUBPERCENT) != NULL) { if (old_sub == NULL) // there is no previous command { emsg(_(e_nopresub)); return; } sub = old_sub; } else { vim_free(old_sub); old_sub = vim_strsave(sub); } } } else if (!eap->skip) // use previous pattern and substitution { if (old_sub == NULL) // there is no previous command { emsg(_(e_nopresub)); return; } pat = NULL; // search_regcomp() will use previous pattern sub = old_sub; // Vi compatibility quirk: repeating with ":s" keeps the cursor in the // last column after using "$". endcolumn = (curwin->w_curswant == MAXCOL); } // Recognize ":%s/\n//" and turn it into a join command, which is much // more efficient. // TODO: find a generic solution to make line-joining operations more // efficient, avoid allocating a string that grows in size. if (pat != NULL && STRCMP(pat, "\\n") == 0 && *sub == NUL && (*cmd == NUL || (cmd[1] == NUL && (*cmd == 'g' || *cmd == 'l' || *cmd == 'p' || *cmd == '#')))) { linenr_T joined_lines_count; curwin->w_cursor.lnum = eap->line1; if (*cmd == 'l') eap->flags = EXFLAG_LIST; else if (*cmd == '#') eap->flags = EXFLAG_NR; else if (*cmd == 'p') eap->flags = EXFLAG_PRINT; // The number of lines joined is the number of lines in the range plus // one. One less when the last line is included. joined_lines_count = eap->line2 - eap->line1 + 1; if (eap->line2 < curbuf->b_ml.ml_line_count) ++joined_lines_count; if (joined_lines_count > 1) { (void)do_join(joined_lines_count, FALSE, TRUE, FALSE, TRUE); sub_nsubs = joined_lines_count - 1; sub_nlines = 1; (void)do_sub_msg(FALSE); ex_may_print(eap); } if (!cmdmod.keeppatterns) save_re_pat(RE_SUBST, pat, p_magic); // put pattern in history add_to_history(HIST_SEARCH, pat, TRUE, NUL); return; } /* * Find trailing options. When '&' is used, keep old options. */ if (*cmd == '&') ++cmd; else { if (!p_ed) { if (p_gd) // default is global on subflags.do_all = TRUE; else subflags.do_all = FALSE; subflags.do_ask = FALSE; } subflags.do_error = TRUE; subflags.do_print = FALSE; subflags.do_list = FALSE; subflags.do_count = FALSE; subflags.do_number = FALSE; subflags.do_ic = 0; } while (*cmd) { /* * Note that 'g' and 'c' are always inverted, also when p_ed is off. * 'r' is never inverted. */ if (*cmd == 'g') subflags.do_all = !subflags.do_all; else if (*cmd == 'c') subflags.do_ask = !subflags.do_ask; else if (*cmd == 'n') subflags.do_count = TRUE; else if (*cmd == 'e') subflags.do_error = !subflags.do_error; else if (*cmd == 'r') // use last used regexp which_pat = RE_LAST; else if (*cmd == 'p') subflags.do_print = TRUE; else if (*cmd == '#') { subflags.do_print = TRUE; subflags.do_number = TRUE; } else if (*cmd == 'l') { subflags.do_print = TRUE; subflags.do_list = TRUE; } else if (*cmd == 'i') // ignore case subflags.do_ic = 'i'; else if (*cmd == 'I') // don't ignore case subflags.do_ic = 'I'; else break; ++cmd; } if (subflags.do_count) subflags.do_ask = FALSE; save_do_all = subflags.do_all; save_do_ask = subflags.do_ask; /* * check for a trailing count */ cmd = skipwhite(cmd); if (VIM_ISDIGIT(*cmd)) { i = getdigits(&cmd); if (i <= 0 && !eap->skip && subflags.do_error) { emsg(_(e_zerocount)); return; } eap->line1 = eap->line2; eap->line2 += i - 1; if (eap->line2 > curbuf->b_ml.ml_line_count) eap->line2 = curbuf->b_ml.ml_line_count; } /* * check for trailing command or garbage */ cmd = skipwhite(cmd); if (*cmd && *cmd != '"') // if not end-of-line or comment { eap->nextcmd = check_nextcmd(cmd); if (eap->nextcmd == NULL) { emsg(_(e_trailing)); return; } } if (eap->skip) // not executing commands, only parsing return; if (!subflags.do_count && !curbuf->b_p_ma) { // Substitution is not allowed in non-'modifiable' buffer emsg(_(e_modifiable)); return; } if (search_regcomp(pat, RE_SUBST, which_pat, SEARCH_HIS, ®match) == FAIL) { if (subflags.do_error) emsg(_(e_invcmd)); return; } // the 'i' or 'I' flag overrules 'ignorecase' and 'smartcase' if (subflags.do_ic == 'i') regmatch.rmm_ic = TRUE; else if (subflags.do_ic == 'I') regmatch.rmm_ic = FALSE; sub_firstline = NULL; /* * ~ in the substitute pattern is replaced with the old pattern. * We do it here once to avoid it to be replaced over and over again. * But don't do it when it starts with "\=", then it's an expression. */ if (!(sub[0] == '\\' && sub[1] == '=')) sub = regtilde(sub, p_magic); /* * Check for a match on each line. */ line2 = eap->line2; for (lnum = eap->line1; lnum <= line2 && !(got_quit #if defined(FEAT_EVAL) || aborting() #endif ); ++lnum) { nmatch = vim_regexec_multi(®match, curwin, curbuf, lnum, (colnr_T)0, NULL, NULL); if (nmatch) { colnr_T copycol; colnr_T matchcol; colnr_T prev_matchcol = MAXCOL; char_u *new_end, *new_start = NULL; unsigned new_start_len = 0; char_u *p1; int did_sub = FALSE; int lastone; int len, copy_len, needed_len; long nmatch_tl = 0; // nr of lines matched below lnum int do_again; // do it again after joining lines int skip_match = FALSE; linenr_T sub_firstlnum; // nr of first sub line #ifdef FEAT_PROP_POPUP int apc_flags = APC_SAVE_FOR_UNDO | APC_SUBSTITUTE; colnr_T total_added = 0; #endif /* * The new text is build up step by step, to avoid too much * copying. There are these pieces: * sub_firstline The old text, unmodified. * copycol Column in the old text where we started * looking for a match; from here old text still * needs to be copied to the new text. * matchcol Column number of the old text where to look * for the next match. It's just after the * previous match or one further. * prev_matchcol Column just after the previous match (if any). * Mostly equal to matchcol, except for the first * match and after skipping an empty match. * regmatch.*pos Where the pattern matched in the old text. * new_start The new text, all that has been produced so * far. * new_end The new text, where to append new text. * * lnum The line number where we found the start of * the match. Can be below the line we searched * when there is a \n before a \zs in the * pattern. * sub_firstlnum The line number in the buffer where to look * for a match. Can be different from "lnum" * when the pattern or substitute string contains * line breaks. * * Special situations: * - When the substitute string contains a line break, the part up * to the line break is inserted in the text, but the copy of * the original line is kept. "sub_firstlnum" is adjusted for * the inserted lines. * - When the matched pattern contains a line break, the old line * is taken from the line at the end of the pattern. The lines * in the match are deleted later, "sub_firstlnum" is adjusted * accordingly. * * The new text is built up in new_start[]. It has some extra * room to avoid using alloc()/free() too often. new_start_len is * the length of the allocated memory at new_start. * * Make a copy of the old line, so it won't be taken away when * updating the screen or handling a multi-line match. The "old_" * pointers point into this copy. */ sub_firstlnum = lnum; copycol = 0; matchcol = 0; // At first match, remember current cursor position. if (!got_match) { setpcmark(); got_match = TRUE; } /* * Loop until nothing more to replace in this line. * 1. Handle match with empty string. * 2. If do_ask is set, ask for confirmation. * 3. substitute the string. * 4. if do_all is set, find next match * 5. break if there isn't another match in this line */ for (;;) { // Advance "lnum" to the line where the match starts. The // match does not start in the first line when there is a line // break before \zs. if (regmatch.startpos[0].lnum > 0) { lnum += regmatch.startpos[0].lnum; sub_firstlnum += regmatch.startpos[0].lnum; nmatch -= regmatch.startpos[0].lnum; VIM_CLEAR(sub_firstline); } // Match might be after the last line for "\n\zs" matching at // the end of the last line. if (lnum > curbuf->b_ml.ml_line_count) break; if (sub_firstline == NULL) { sub_firstline = vim_strsave(ml_get(sub_firstlnum)); if (sub_firstline == NULL) { vim_free(new_start); goto outofmem; } } // Save the line number of the last change for the final // cursor position (just like Vi). curwin->w_cursor.lnum = lnum; do_again = FALSE; /* * 1. Match empty string does not count, except for first * match. This reproduces the strange vi behaviour. * This also catches endless loops. */ if (matchcol == prev_matchcol && regmatch.endpos[0].lnum == 0 && matchcol == regmatch.endpos[0].col) { if (sub_firstline[matchcol] == NUL) // We already were at the end of the line. Don't look // for a match in this line again. skip_match = TRUE; else { // search for a match at next column if (has_mbyte) matchcol += mb_ptr2len(sub_firstline + matchcol); else ++matchcol; } goto skip; } // Normally we continue searching for a match just after the // previous match. matchcol = regmatch.endpos[0].col; prev_matchcol = matchcol; /* * 2. If do_count is set only increase the counter. * If do_ask is set, ask for confirmation. */ if (subflags.do_count) { // For a multi-line match, put matchcol at the NUL at // the end of the line and set nmatch to one, so that // we continue looking for a match on the next line. // Avoids that ":s/\nB\@=//gc" get stuck. if (nmatch > 1) { matchcol = (colnr_T)STRLEN(sub_firstline); nmatch = 1; skip_match = TRUE; } sub_nsubs++; did_sub = TRUE; #ifdef FEAT_EVAL // Skip the substitution, unless an expression is used, // then it is evaluated in the sandbox. if (!(sub[0] == '\\' && sub[1] == '=')) #endif goto skip; } if (subflags.do_ask) { int typed = 0; // change State to CONFIRM, so that the mouse works // properly save_State = State; State = CONFIRM; setmouse(); // disable mouse in xterm curwin->w_cursor.col = regmatch.startpos[0].col; if (curwin->w_p_crb) do_check_cursorbind(); // When 'cpoptions' contains "u" don't sync undo when // asking for confirmation. if (vim_strchr(p_cpo, CPO_UNDO) != NULL) ++no_u_sync; /* * Loop until 'y', 'n', 'q', CTRL-E or CTRL-Y typed. */ while (subflags.do_ask) { if (exmode_active) { char_u *resp; colnr_T sc, ec; print_line_no_prefix(lnum, subflags.do_number, subflags.do_list); getvcol(curwin, &curwin->w_cursor, &sc, NULL, NULL); curwin->w_cursor.col = regmatch.endpos[0].col - 1; if (curwin->w_cursor.col < 0) curwin->w_cursor.col = 0; getvcol(curwin, &curwin->w_cursor, NULL, NULL, &ec); if (subflags.do_number || curwin->w_p_nu) { int numw = number_width(curwin) + 1; sc += numw; ec += numw; } msg_start(); for (i = 0; i < (long)sc; ++i) msg_putchar(' '); for ( ; i <= (long)ec; ++i) msg_putchar('^'); resp = getexmodeline('?', NULL, 0, TRUE); if (resp != NULL) { typed = *resp; vim_free(resp); } } else { char_u *orig_line = NULL; int len_change = 0; #ifdef FEAT_FOLDING int save_p_fen = curwin->w_p_fen; curwin->w_p_fen = FALSE; #endif // Invert the matched string. // Remove the inversion afterwards. temp = RedrawingDisabled; RedrawingDisabled = 0; if (new_start != NULL) { // There already was a substitution, we would // like to show this to the user. We cannot // really update the line, it would change // what matches. Temporarily replace the line // and change it back afterwards. orig_line = vim_strsave(ml_get(lnum)); if (orig_line != NULL) { char_u *new_line = concat_str(new_start, sub_firstline + copycol); if (new_line == NULL) VIM_CLEAR(orig_line); else { // Position the cursor relative to the // end of the line, the previous // substitute may have inserted or // deleted characters before the // cursor. len_change = (int)STRLEN(new_line) - (int)STRLEN(orig_line); curwin->w_cursor.col += len_change; ml_replace(lnum, new_line, FALSE); } } } search_match_lines = regmatch.endpos[0].lnum - regmatch.startpos[0].lnum; search_match_endcol = regmatch.endpos[0].col + len_change; highlight_match = TRUE; update_topline(); validate_cursor(); update_screen(SOME_VALID); highlight_match = FALSE; redraw_later(SOME_VALID); #ifdef FEAT_FOLDING curwin->w_p_fen = save_p_fen; #endif if (msg_row == Rows - 1) msg_didout = FALSE; // avoid a scroll-up msg_starthere(); i = msg_scroll; msg_scroll = 0; // truncate msg when // needed msg_no_more = TRUE; // write message same highlighting as for // wait_return smsg_attr(HL_ATTR(HLF_R), _("replace with %s (y/n/a/q/l/^E/^Y)?"), sub); msg_no_more = FALSE; msg_scroll = i; showruler(TRUE); windgoto(msg_row, msg_col); RedrawingDisabled = temp; #ifdef USE_ON_FLY_SCROLL dont_scroll = FALSE; // allow scrolling here #endif ++no_mapping; // don't map this key ++allow_keys; // allow special keys typed = plain_vgetc(); --allow_keys; --no_mapping; // clear the question msg_didout = FALSE; // don't scroll up msg_col = 0; gotocmdline(TRUE); // restore the line if (orig_line != NULL) ml_replace(lnum, orig_line, FALSE); } need_wait_return = FALSE; // no hit-return prompt if (typed == 'q' || typed == ESC || typed == Ctrl_C #ifdef UNIX || typed == intr_char #endif ) { got_quit = TRUE; break; } if (typed == 'n') break; if (typed == 'y') break; if (typed == 'l') { // last: replace and then stop subflags.do_all = FALSE; line2 = lnum; break; } if (typed == 'a') { subflags.do_ask = FALSE; break; } if (typed == Ctrl_E) scrollup_clamp(); else if (typed == Ctrl_Y) scrolldown_clamp(); } State = save_State; setmouse(); if (vim_strchr(p_cpo, CPO_UNDO) != NULL) --no_u_sync; if (typed == 'n') { // For a multi-line match, put matchcol at the NUL at // the end of the line and set nmatch to one, so that // we continue looking for a match on the next line. // Avoids that ":%s/\nB\@=//gc" and ":%s/\n/,\r/gc" // get stuck when pressing 'n'. if (nmatch > 1) { matchcol = (colnr_T)STRLEN(sub_firstline); skip_match = TRUE; } goto skip; } if (got_quit) goto skip; } // Move the cursor to the start of the match, so that we can // use "\=col("."). curwin->w_cursor.col = regmatch.startpos[0].col; /* * 3. substitute the string. */ #ifdef FEAT_EVAL save_ma = curbuf->b_p_ma; if (subflags.do_count) { // prevent accidentally changing the buffer by a function curbuf->b_p_ma = FALSE; sandbox++; } // Save flags for recursion. They can change for e.g. // :s/^/\=execute("s#^##gn") subflags_save = subflags; #endif // get length of substitution part sublen = vim_regsub_multi(®match, sub_firstlnum - regmatch.startpos[0].lnum, sub, sub_firstline, FALSE, p_magic, TRUE); #ifdef FEAT_EVAL // If getting the substitute string caused an error, don't do // the replacement. // Don't keep flags set by a recursive call. subflags = subflags_save; if (aborting() || subflags.do_count) { curbuf->b_p_ma = save_ma; if (sandbox > 0) sandbox--; goto skip; } #endif // When the match included the "$" of the last line it may // go beyond the last line of the buffer. if (nmatch > curbuf->b_ml.ml_line_count - sub_firstlnum + 1) { nmatch = curbuf->b_ml.ml_line_count - sub_firstlnum + 1; skip_match = TRUE; } // Need room for: // - result so far in new_start (not for first sub in line) // - original text up to match // - length of substituted part // - original text after match // Adjust text properties here, since we have all information // needed. if (nmatch == 1) { p1 = sub_firstline; #ifdef FEAT_PROP_POPUP if (curbuf->b_has_textprop) { int bytes_added = sublen - 1 - (regmatch.endpos[0].col - regmatch.startpos[0].col); // When text properties are changed, need to save for // undo first, unless done already. if (adjust_prop_columns(lnum, total_added + regmatch.startpos[0].col, bytes_added, apc_flags)) apc_flags &= ~APC_SAVE_FOR_UNDO; // Offset for column byte number of the text property // in the resulting buffer afterwards. total_added += bytes_added; } #endif } else { p1 = ml_get(sub_firstlnum + nmatch - 1); nmatch_tl += nmatch - 1; } copy_len = regmatch.startpos[0].col - copycol; needed_len = copy_len + ((unsigned)STRLEN(p1) - regmatch.endpos[0].col) + sublen + 1; if (new_start == NULL) { /* * Get some space for a temporary buffer to do the * substitution into (and some extra space to avoid * too many calls to alloc()/free()). */ new_start_len = needed_len + 50; if ((new_start = alloc(new_start_len)) == NULL) goto outofmem; *new_start = NUL; new_end = new_start; } else { /* * Check if the temporary buffer is long enough to do the * substitution into. If not, make it larger (with a bit * extra to avoid too many calls to alloc()/free()). */ len = (unsigned)STRLEN(new_start); needed_len += len; if (needed_len > (int)new_start_len) { new_start_len = needed_len + 50; if ((p1 = alloc(new_start_len)) == NULL) { vim_free(new_start); goto outofmem; } mch_memmove(p1, new_start, (size_t)(len + 1)); vim_free(new_start); new_start = p1; } new_end = new_start + len; } /* * copy the text up to the part that matched */ mch_memmove(new_end, sub_firstline + copycol, (size_t)copy_len); new_end += copy_len; (void)vim_regsub_multi(®match, sub_firstlnum - regmatch.startpos[0].lnum, sub, new_end, TRUE, p_magic, TRUE); sub_nsubs++; did_sub = TRUE; // Move the cursor to the start of the line, to avoid that it // is beyond the end of the line after the substitution. curwin->w_cursor.col = 0; // For a multi-line match, make a copy of the last matched // line and continue in that one. if (nmatch > 1) { sub_firstlnum += nmatch - 1; vim_free(sub_firstline); sub_firstline = vim_strsave(ml_get(sub_firstlnum)); // When going beyond the last line, stop substituting. if (sub_firstlnum <= line2) do_again = TRUE; else subflags.do_all = FALSE; } // Remember next character to be copied. copycol = regmatch.endpos[0].col; if (skip_match) { // Already hit end of the buffer, sub_firstlnum is one // less than what it ought to be. vim_free(sub_firstline); sub_firstline = vim_strsave((char_u *)""); copycol = 0; } /* * Now the trick is to replace CTRL-M chars with a real line * break. This would make it impossible to insert a CTRL-M in * the text. The line break can be avoided by preceding the * CTRL-M with a backslash. To be able to insert a backslash, * they must be doubled in the string and are halved here. * That is Vi compatible. */ for (p1 = new_end; *p1; ++p1) { if (p1[0] == '\\' && p1[1] != NUL) // remove backslash { STRMOVE(p1, p1 + 1); #ifdef FEAT_PROP_POPUP if (curbuf->b_has_textprop) { // When text properties are changed, need to save // for undo first, unless done already. if (adjust_prop_columns(lnum, (colnr_T)(p1 - new_start), -1, apc_flags)) apc_flags &= ~APC_SAVE_FOR_UNDO; } #endif } else if (*p1 == CAR) { if (u_inssub(lnum) == OK) // prepare for undo { colnr_T plen = (colnr_T)(p1 - new_start + 1); *p1 = NUL; // truncate up to the CR ml_append(lnum - 1, new_start, plen, FALSE); mark_adjust(lnum + 1, (linenr_T)MAXLNUM, 1L, 0L); if (subflags.do_ask) appended_lines(lnum - 1, 1L); else { if (first_line == 0) first_line = lnum; last_line = lnum + 1; } #ifdef FEAT_PROP_POPUP adjust_props_for_split(lnum + 1, lnum, plen, 1); #endif // all line numbers increase ++sub_firstlnum; ++lnum; ++line2; // move the cursor to the new line, like Vi ++curwin->w_cursor.lnum; // copy the rest STRMOVE(new_start, p1 + 1); p1 = new_start - 1; } } else if (has_mbyte) p1 += (*mb_ptr2len)(p1) - 1; } /* * 4. If do_all is set, find next match. * Prevent endless loop with patterns that match empty * strings, e.g. :s/$/pat/g or :s/[a-z]* /(&)/g. * But ":s/\n/#/" is OK. */ skip: // We already know that we did the last subst when we are at // the end of the line, except that a pattern like // "bar\|\nfoo" may match at the NUL. "lnum" can be below // "line2" when there is a \zs in the pattern after a line // break. lastone = (skip_match || got_int || got_quit || lnum > line2 || !(subflags.do_all || do_again) || (sub_firstline[matchcol] == NUL && nmatch <= 1 && !re_multiline(regmatch.regprog))); nmatch = -1; /* * Replace the line in the buffer when needed. This is * skipped when there are more matches. * The check for nmatch_tl is needed for when multi-line * matching must replace the lines before trying to do another * match, otherwise "\@<=" won't work. * When the match starts below where we start searching also * need to replace the line first (using \zs after \n). */ if (lastone || nmatch_tl > 0 || (nmatch = vim_regexec_multi(®match, curwin, curbuf, sub_firstlnum, matchcol, NULL, NULL)) == 0 || regmatch.startpos[0].lnum > 0) { if (new_start != NULL) { /* * Copy the rest of the line, that didn't match. * "matchcol" has to be adjusted, we use the end of * the line as reference, because the substitute may * have changed the number of characters. Same for * "prev_matchcol". */ STRCAT(new_start, sub_firstline + copycol); matchcol = (colnr_T)STRLEN(sub_firstline) - matchcol; prev_matchcol = (colnr_T)STRLEN(sub_firstline) - prev_matchcol; if (u_savesub(lnum) != OK) break; ml_replace(lnum, new_start, TRUE); if (nmatch_tl > 0) { /* * Matched lines have now been substituted and are * useless, delete them. The part after the match * has been appended to new_start, we don't need * it in the buffer. */ ++lnum; if (u_savedel(lnum, nmatch_tl) != OK) break; for (i = 0; i < nmatch_tl; ++i) ml_delete(lnum); mark_adjust(lnum, lnum + nmatch_tl - 1, (long)MAXLNUM, -nmatch_tl); if (subflags.do_ask) deleted_lines(lnum, nmatch_tl); --lnum; line2 -= nmatch_tl; // nr of lines decreases nmatch_tl = 0; } // When asking, undo is saved each time, must also set // changed flag each time. if (subflags.do_ask) changed_bytes(lnum, 0); else { if (first_line == 0) first_line = lnum; last_line = lnum + 1; } sub_firstlnum = lnum; vim_free(sub_firstline); // free the temp buffer sub_firstline = new_start; new_start = NULL; matchcol = (colnr_T)STRLEN(sub_firstline) - matchcol; prev_matchcol = (colnr_T)STRLEN(sub_firstline) - prev_matchcol; copycol = 0; } if (nmatch == -1 && !lastone) nmatch = vim_regexec_multi(®match, curwin, curbuf, sub_firstlnum, matchcol, NULL, NULL); /* * 5. break if there isn't another match in this line */ if (nmatch <= 0) { // If the match found didn't start where we were // searching, do the next search in the line where we // found the match. if (nmatch == -1) lnum -= regmatch.startpos[0].lnum; break; } } line_breakcheck(); } if (did_sub) ++sub_nlines; vim_free(new_start); // for when substitute was cancelled VIM_CLEAR(sub_firstline); // free the copy of the original line } line_breakcheck(); } if (first_line != 0) { // Need to subtract the number of added lines from "last_line" to get // the line number before the change (same as adding the number of // deleted lines). i = curbuf->b_ml.ml_line_count - old_line_count; changed_lines(first_line, 0, last_line - i, i); } outofmem: vim_free(sub_firstline); // may have to free allocated copy of the line // ":s/pat//n" doesn't move the cursor if (subflags.do_count) curwin->w_cursor = old_cursor; if (sub_nsubs > start_nsubs) { if (!cmdmod.lockmarks) { // Set the '[ and '] marks. curbuf->b_op_start.lnum = eap->line1; curbuf->b_op_end.lnum = line2; curbuf->b_op_start.col = curbuf->b_op_end.col = 0; } if (!global_busy) { // when interactive leave cursor on the match if (!subflags.do_ask) { if (endcolumn) coladvance((colnr_T)MAXCOL); else beginline(BL_WHITE | BL_FIX); } if (!do_sub_msg(subflags.do_count) && subflags.do_ask) msg(""); } else global_need_beginline = TRUE; if (subflags.do_print) print_line(curwin->w_cursor.lnum, subflags.do_number, subflags.do_list); } else if (!global_busy) { if (got_int) // interrupted emsg(_(e_interr)); else if (got_match) // did find something but nothing substituted msg(""); else if (subflags.do_error) // nothing found semsg(_(e_patnotf2), get_search_pat()); } #ifdef FEAT_FOLDING if (subflags.do_ask && hasAnyFolding(curwin)) // Cursor position may require updating changed_window_setting(); #endif vim_regfree(regmatch.regprog); // Restore the flag values, they can be used for ":&&". subflags.do_all = save_do_all; subflags.do_ask = save_do_ask; } /* * Give message for number of substitutions. * Can also be used after a ":global" command. * Return TRUE if a message was given. */ int do_sub_msg( int count_only) // used 'n' flag for ":s" { /* * Only report substitutions when: * - more than 'report' substitutions * - command was typed by user, or number of changed lines > 'report' * - giving messages is not disabled by 'lazyredraw' */ if (((sub_nsubs > p_report && (KeyTyped || sub_nlines > 1 || p_report < 1)) || count_only) && messaging()) { char *msg_single; char *msg_plural; if (got_int) STRCPY(msg_buf, _("(Interrupted) ")); else *msg_buf = NUL; msg_single = count_only ? NGETTEXT("%ld match on %ld line", "%ld matches on %ld line", sub_nsubs) : NGETTEXT("%ld substitution on %ld line", "%ld substitutions on %ld line", sub_nsubs); msg_plural = count_only ? NGETTEXT("%ld match on %ld lines", "%ld matches on %ld lines", sub_nsubs) : NGETTEXT("%ld substitution on %ld lines", "%ld substitutions on %ld lines", sub_nsubs); vim_snprintf_add(msg_buf, sizeof(msg_buf), NGETTEXT(msg_single, msg_plural, sub_nlines), sub_nsubs, (long)sub_nlines); if (msg(msg_buf)) // save message to display it after redraw set_keep_msg((char_u *)msg_buf, 0); return TRUE; } if (got_int) { emsg(_(e_interr)); return TRUE; } return FALSE; } static void global_exe_one(char_u *cmd, linenr_T lnum) { curwin->w_cursor.lnum = lnum; curwin->w_cursor.col = 0; if (*cmd == NUL || *cmd == '\n') do_cmdline((char_u *)"p", NULL, NULL, DOCMD_NOWAIT); else do_cmdline(cmd, NULL, NULL, DOCMD_NOWAIT); } /* * Execute a global command of the form: * * g/pattern/X : execute X on all lines where pattern matches * v/pattern/X : execute X on all lines where pattern does not match * * where 'X' is an EX command * * The command character (as well as the trailing slash) is optional, and * is assumed to be 'p' if missing. * * This is implemented in two passes: first we scan the file for the pattern and * set a mark for each line that (not) matches. Secondly we execute the command * for each line that has a mark. This is required because after deleting * lines we do not know where to search for the next match. */ void ex_global(exarg_T *eap) { linenr_T lnum; // line number according to old situation int ndone = 0; int type; // first char of cmd: 'v' or 'g' char_u *cmd; // command argument char_u delim; // delimiter, normally '/' char_u *pat; regmmatch_T regmatch; int match; int which_pat; // When nesting the command works on one line. This allows for // ":g/found/v/notfound/command". if (global_busy && (eap->line1 != 1 || eap->line2 != curbuf->b_ml.ml_line_count)) { // will increment global_busy to break out of the loop emsg(_("E147: Cannot do :global recursive with a range")); return; } if (eap->forceit) // ":global!" is like ":vglobal" type = 'v'; else type = *eap->cmd; cmd = eap->arg; which_pat = RE_LAST; // default: use last used regexp /* * undocumented vi feature: * "\/" and "\?": use previous search pattern. * "\&": use previous substitute pattern. */ if (*cmd == '\\') { ++cmd; if (vim_strchr((char_u *)"/?&", *cmd) == NULL) { emsg(_(e_backslash)); return; } if (*cmd == '&') which_pat = RE_SUBST; // use previous substitute pattern else which_pat = RE_SEARCH; // use previous search pattern ++cmd; pat = (char_u *)""; } else if (*cmd == NUL) { emsg(_("E148: Regular expression missing from global")); return; } else { delim = *cmd; // get the delimiter if (delim) ++cmd; // skip delimiter if there is one pat = cmd; // remember start of pattern cmd = skip_regexp_ex(cmd, delim, p_magic, &eap->arg, NULL); if (cmd[0] == delim) // end delimiter found *cmd++ = NUL; // replace it with a NUL } if (search_regcomp(pat, RE_BOTH, which_pat, SEARCH_HIS, ®match) == FAIL) { emsg(_(e_invcmd)); return; } if (global_busy) { lnum = curwin->w_cursor.lnum; match = vim_regexec_multi(®match, curwin, curbuf, lnum, (colnr_T)0, NULL, NULL); if ((type == 'g' && match) || (type == 'v' && !match)) global_exe_one(cmd, lnum); } else { /* * pass 1: set marks for each (not) matching line */ for (lnum = eap->line1; lnum <= eap->line2 && !got_int; ++lnum) { // a match on this line? match = vim_regexec_multi(®match, curwin, curbuf, lnum, (colnr_T)0, NULL, NULL); if ((type == 'g' && match) || (type == 'v' && !match)) { ml_setmarked(lnum); ndone++; } line_breakcheck(); } /* * pass 2: execute the command for each line that has been marked */ if (got_int) msg(_(e_interr)); else if (ndone == 0) { if (type == 'v') smsg(_("Pattern found in every line: %s"), pat); else smsg(_("Pattern not found: %s"), pat); } else { #ifdef FEAT_CLIPBOARD start_global_changes(); #endif global_exe(cmd); #ifdef FEAT_CLIPBOARD end_global_changes(); #endif } ml_clearmarked(); // clear rest of the marks } vim_regfree(regmatch.regprog); } /* * Execute "cmd" on lines marked with ml_setmarked(). */ void global_exe(char_u *cmd) { linenr_T old_lcount; // b_ml.ml_line_count before the command buf_T *old_buf = curbuf; // remember what buffer we started in linenr_T lnum; // line number according to old situation /* * Set current position only once for a global command. * If global_busy is set, setpcmark() will not do anything. * If there is an error, global_busy will be incremented. */ setpcmark(); // When the command writes a message, don't overwrite the command. msg_didout = TRUE; sub_nsubs = 0; sub_nlines = 0; global_need_beginline = FALSE; global_busy = 1; old_lcount = curbuf->b_ml.ml_line_count; while (!got_int && (lnum = ml_firstmarked()) != 0 && global_busy == 1) { global_exe_one(cmd, lnum); ui_breakcheck(); } global_busy = 0; if (global_need_beginline) beginline(BL_WHITE | BL_FIX); else check_cursor(); // cursor may be beyond the end of the line // the cursor may not have moved in the text but a change in a previous // line may move it on the screen changed_line_abv_curs(); // If it looks like no message was written, allow overwriting the // command with the report for number of changes. if (msg_col == 0 && msg_scrolled == 0) msg_didout = FALSE; // If substitutes done, report number of substitutes, otherwise report // number of extra or deleted lines. // Don't report extra or deleted lines in the edge case where the buffer // we are in after execution is different from the buffer we started in. if (!do_sub_msg(FALSE) && curbuf == old_buf) msgmore(curbuf->b_ml.ml_line_count - old_lcount); } #ifdef FEAT_VIMINFO /* * Get the previous substitute pattern. */ char_u * get_old_sub(void) { return old_sub; } /* * Set the previous substitute pattern. "val" must be allocated. */ void set_old_sub(char_u *val) { vim_free(old_sub); old_sub = val; } #endif // FEAT_VIMINFO #if defined(EXITFREE) || defined(PROTO) void free_old_sub(void) { vim_free(old_sub); } #endif #if defined(FEAT_QUICKFIX) || defined(PROTO) /* * Set up for a tagpreview. * Makes the preview window the current window. * Return TRUE when it was created. */ int prepare_tagpreview( int undo_sync, // sync undo when leaving the window int use_previewpopup, // use popup if 'previewpopup' set use_popup_T use_popup) // use other popup window { win_T *wp; # ifdef FEAT_GUI need_mouse_correct = TRUE; # endif /* * If there is already a preview window open, use that one. */ if (!curwin->w_p_pvw) { # ifdef FEAT_PROP_POPUP if (use_previewpopup && *p_pvp != NUL) { wp = popup_find_preview_window(); if (wp != NULL) popup_set_wantpos_cursor(wp, wp->w_minwidth, NULL); } else if (use_popup != USEPOPUP_NONE) { wp = popup_find_info_window(); if (wp != NULL) { if (use_popup == USEPOPUP_NORMAL) popup_show(wp); else popup_hide(wp); // When the popup moves or resizes it may reveal part of // another window. TODO: can this be done more efficiently? redraw_all_later(NOT_VALID); } } else # endif { FOR_ALL_WINDOWS(wp) if (wp->w_p_pvw) break; } if (wp != NULL) win_enter(wp, undo_sync); else { /* * There is no preview window open yet. Create one. */ # ifdef FEAT_PROP_POPUP if ((use_previewpopup && *p_pvp != NUL) || use_popup != USEPOPUP_NONE) return popup_create_preview_window(use_popup != USEPOPUP_NONE); # endif if (win_split(g_do_tagpreview > 0 ? g_do_tagpreview : 0, 0) == FAIL) return FALSE; curwin->w_p_pvw = TRUE; curwin->w_p_wfh = TRUE; RESET_BINDING(curwin); // don't take over 'scrollbind' // and 'cursorbind' # ifdef FEAT_DIFF curwin->w_p_diff = FALSE; // no 'diff' # endif # ifdef FEAT_FOLDING curwin->w_p_fdc = 0; // no 'foldcolumn' # endif return TRUE; } } return FALSE; } #endif /* * ":help": open a read-only window on a help file */ void ex_help(exarg_T *eap) { char_u *arg; char_u *tag; FILE *helpfd; // file descriptor of help file int n; int i; win_T *wp; int num_matches; char_u **matches; char_u *p; int empty_fnum = 0; int alt_fnum = 0; buf_T *buf; #ifdef FEAT_MULTI_LANG int len; char_u *lang; #endif #ifdef FEAT_FOLDING int old_KeyTyped = KeyTyped; #endif if (eap != NULL) { /* * A ":help" command ends at the first LF, or at a '|' that is * followed by some text. Set nextcmd to the following command. */ for (arg = eap->arg; *arg; ++arg) { if (*arg == '\n' || *arg == '\r' || (*arg == '|' && arg[1] != NUL && arg[1] != '|')) { *arg++ = NUL; eap->nextcmd = arg; break; } } arg = eap->arg; if (eap->forceit && *arg == NUL && !curbuf->b_help) { emsg(_("E478: Don't panic!")); return; } if (eap->skip) // not executing commands return; } else arg = (char_u *)""; // remove trailing blanks p = arg + STRLEN(arg) - 1; while (p > arg && VIM_ISWHITE(*p) && p[-1] != '\\') *p-- = NUL; #ifdef FEAT_MULTI_LANG // Check for a specified language lang = check_help_lang(arg); #endif // When no argument given go to the index. if (*arg == NUL) arg = (char_u *)"help.txt"; /* * Check if there is a match for the argument. */ n = find_help_tags(arg, &num_matches, &matches, eap != NULL && eap->forceit); i = 0; #ifdef FEAT_MULTI_LANG if (n != FAIL && lang != NULL) // Find first item with the requested language. for (i = 0; i < num_matches; ++i) { len = (int)STRLEN(matches[i]); if (len > 3 && matches[i][len - 3] == '@' && STRICMP(matches[i] + len - 2, lang) == 0) break; } #endif if (i >= num_matches || n == FAIL) { #ifdef FEAT_MULTI_LANG if (lang != NULL) semsg(_("E661: Sorry, no '%s' help for %s"), lang, arg); else #endif semsg(_("E149: Sorry, no help for %s"), arg); if (n != FAIL) FreeWild(num_matches, matches); return; } // The first match (in the requested language) is the best match. tag = vim_strsave(matches[i]); FreeWild(num_matches, matches); #ifdef FEAT_GUI need_mouse_correct = TRUE; #endif /* * Re-use an existing help window or open a new one. * Always open a new one for ":tab help". */ if (!bt_help(curwin->w_buffer) || cmdmod.tab != 0) { if (cmdmod.tab != 0) wp = NULL; else FOR_ALL_WINDOWS(wp) if (bt_help(wp->w_buffer)) break; if (wp != NULL && wp->w_buffer->b_nwindows > 0) win_enter(wp, TRUE); else { /* * There is no help window yet. * Try to open the file specified by the "helpfile" option. */ if ((helpfd = mch_fopen((char *)p_hf, READBIN)) == NULL) { smsg(_("Sorry, help file \"%s\" not found"), p_hf); goto erret; } fclose(helpfd); // Split off help window; put it at far top if no position // specified, the current window is vertically split and // narrow. n = WSP_HELP; if (cmdmod.split == 0 && curwin->w_width != Columns && curwin->w_width < 80) n |= WSP_TOP; if (win_split(0, n) == FAIL) goto erret; if (curwin->w_height < p_hh) win_setheight((int)p_hh); /* * Open help file (do_ecmd() will set b_help flag, readfile() will * set b_p_ro flag). * Set the alternate file to the previously edited file. */ alt_fnum = curbuf->b_fnum; (void)do_ecmd(0, NULL, NULL, NULL, ECMD_LASTL, ECMD_HIDE + ECMD_SET_HELP, NULL); // buffer is still open, don't store info if (!cmdmod.keepalt) curwin->w_alt_fnum = alt_fnum; empty_fnum = curbuf->b_fnum; } } if (!p_im) restart_edit = 0; // don't want insert mode in help file #ifdef FEAT_FOLDING // Restore KeyTyped, setting 'filetype=help' may reset it. // It is needed for do_tag top open folds under the cursor. KeyTyped = old_KeyTyped; #endif if (tag != NULL) do_tag(tag, DT_HELP, 1, FALSE, TRUE); // Delete the empty buffer if we're not using it. Careful: autocommands // may have jumped to another window, check that the buffer is not in a // window. if (empty_fnum != 0 && curbuf->b_fnum != empty_fnum) { buf = buflist_findnr(empty_fnum); if (buf != NULL && buf->b_nwindows == 0) wipe_buffer(buf, TRUE); } // keep the previous alternate file if (alt_fnum != 0 && curwin->w_alt_fnum == empty_fnum && !cmdmod.keepalt) curwin->w_alt_fnum = alt_fnum; erret: vim_free(tag); } /* * ":helpclose": Close one help window */ void ex_helpclose(exarg_T *eap UNUSED) { win_T *win; FOR_ALL_WINDOWS(win) { if (bt_help(win->w_buffer)) { win_close(win, FALSE); return; } } } #if defined(FEAT_MULTI_LANG) || defined(PROTO) /* * In an argument search for a language specifiers in the form "@xx". * Changes the "@" to NUL if found, and returns a pointer to "xx". * Returns NULL if not found. */ char_u * check_help_lang(char_u *arg) { int len = (int)STRLEN(arg); if (len >= 3 && arg[len - 3] == '@' && ASCII_ISALPHA(arg[len - 2]) && ASCII_ISALPHA(arg[len - 1])) { arg[len - 3] = NUL; // remove the '@' return arg + len - 2; } return NULL; } #endif /* * Return a heuristic indicating how well the given string matches. The * smaller the number, the better the match. This is the order of priorities, * from best match to worst match: * - Match with least alphanumeric characters is better. * - Match with least total characters is better. * - Match towards the start is better. * - Match starting with "+" is worse (feature instead of command) * Assumption is made that the matched_string passed has already been found to * match some string for which help is requested. webb. */ int help_heuristic( char_u *matched_string, int offset, // offset for match int wrong_case) // no matching case { int num_letters; char_u *p; num_letters = 0; for (p = matched_string; *p; p++) if (ASCII_ISALNUM(*p)) num_letters++; /* * Multiply the number of letters by 100 to give it a much bigger * weighting than the number of characters. * If there only is a match while ignoring case, add 5000. * If the match starts in the middle of a word, add 10000 to put it * somewhere in the last half. * If the match is more than 2 chars from the start, multiply by 200 to * put it after matches at the start. */ if (ASCII_ISALNUM(matched_string[offset]) && offset > 0 && ASCII_ISALNUM(matched_string[offset - 1])) offset += 10000; else if (offset > 2) offset *= 200; if (wrong_case) offset += 5000; // Features are less interesting than the subjects themselves, but "+" // alone is not a feature. if (matched_string[0] == '+' && matched_string[1] != NUL) offset += 100; return (int)(100 * num_letters + STRLEN(matched_string) + offset); } /* * Compare functions for qsort() below, that checks the help heuristics number * that has been put after the tagname by find_tags(). */ static int help_compare(const void *s1, const void *s2) { char *p1; char *p2; int cmp; p1 = *(char **)s1 + strlen(*(char **)s1) + 1; p2 = *(char **)s2 + strlen(*(char **)s2) + 1; // Compare by help heuristic number first. cmp = strcmp(p1, p2); if (cmp != 0) return cmp; // Compare by strings as tie-breaker when same heuristic number. return strcmp(*(char **)s1, *(char **)s2); } /* * Find all help tags matching "arg", sort them and return in matches[], with * the number of matches in num_matches. * The matches will be sorted with a "best" match algorithm. * When "keep_lang" is TRUE try keeping the language of the current buffer. */ int find_help_tags( char_u *arg, int *num_matches, char_u ***matches, int keep_lang) { char_u *s, *d; int i; static char *(mtable[]) = {"*", "g*", "[*", "]*", ":*", "/*", "/\\*", "\"*", "**", "cpo-*", "/\\(\\)", "/\\%(\\)", "?", ":?", "?<CR>", "g?", "g?g?", "g??", "-?", "q?", "v_g?", "/\\?", "/\\z(\\)", "\\=", ":s\\=", "[count]", "[quotex]", "[range]", ":[range]", "[pattern]", "\\|", "\\%$", "s/\\~", "s/\\U", "s/\\L", "s/\\1", "s/\\2", "s/\\3", "s/\\9"}; static char *(rtable[]) = {"star", "gstar", "[star", "]star", ":star", "/star", "/\\\\star", "quotestar", "starstar", "cpo-star", "/\\\\(\\\\)", "/\\\\%(\\\\)", "?", ":?", "?<CR>", "g?", "g?g?", "g??", "-?", "q?", "v_g?", "/\\\\?", "/\\\\z(\\\\)", "\\\\=", ":s\\\\=", "\\[count]", "\\[quotex]", "\\[range]", ":\\[range]", "\\[pattern]", "\\\\bar", "/\\\\%\\$", "s/\\\\\\~", "s/\\\\U", "s/\\\\L", "s/\\\\1", "s/\\\\2", "s/\\\\3", "s/\\\\9"}; static char *(expr_table[]) = {"!=?", "!~?", "<=?", "<?", "==?", "=~?", ">=?", ">?", "is?", "isnot?"}; int flags; d = IObuff; // assume IObuff is long enough! if (STRNICMP(arg, "expr-", 5) == 0) { // When the string starting with "expr-" and containing '?' and matches // the table, it is taken literally (but ~ is escaped). Otherwise '?' // is recognized as a wildcard. for (i = (int)(sizeof(expr_table) / sizeof(char *)); --i >= 0; ) if (STRCMP(arg + 5, expr_table[i]) == 0) { int si = 0, di = 0; for (;;) { if (arg[si] == '~') d[di++] = '\\'; d[di++] = arg[si]; if (arg[si] == NUL) break; ++si; } break; } } else { // Recognize a few exceptions to the rule. Some strings that contain // '*' with "star". Otherwise '*' is recognized as a wildcard. for (i = (int)(sizeof(mtable) / sizeof(char *)); --i >= 0; ) if (STRCMP(arg, mtable[i]) == 0) { STRCPY(d, rtable[i]); break; } } if (i < 0) // no match in table { // Replace "\S" with "/\\S", etc. Otherwise every tag is matched. // Also replace "\%^" and "\%(", they match every tag too. // Also "\zs", "\z1", etc. // Also "\@<", "\@=", "\@<=", etc. // And also "\_$" and "\_^". if (arg[0] == '\\' && ((arg[1] != NUL && arg[2] == NUL) || (vim_strchr((char_u *)"%_z@", arg[1]) != NULL && arg[2] != NUL))) { STRCPY(d, "/\\\\"); STRCPY(d + 3, arg + 1); // Check for "/\\_$", should be "/\\_\$" if (d[3] == '_' && d[4] == '$') STRCPY(d + 4, "\\$"); } else { // Replace: // "[:...:]" with "\[:...:]" // "[++...]" with "\[++...]" // "\{" with "\\{" -- matching "} \}" if ((arg[0] == '[' && (arg[1] == ':' || (arg[1] == '+' && arg[2] == '+'))) || (arg[0] == '\\' && arg[1] == '{')) *d++ = '\\'; /* * If tag starts with "('", skip the "(". Fixes CTRL-] on ('option'. */ if (*arg == '(' && arg[1] == '\'') arg++; for (s = arg; *s; ++s) { /* * Replace "|" with "bar" and '"' with "quote" to match the name of * the tags for these commands. * Replace "*" with ".*" and "?" with "." to match command line * completion. * Insert a backslash before '~', '$' and '.' to avoid their * special meaning. */ if (d - IObuff > IOSIZE - 10) // getting too long!? break; switch (*s) { case '|': STRCPY(d, "bar"); d += 3; continue; case '"': STRCPY(d, "quote"); d += 5; continue; case '*': *d++ = '.'; break; case '?': *d++ = '.'; continue; case '$': case '.': case '~': *d++ = '\\'; break; } /* * Replace "^x" by "CTRL-X". Don't do this for "^_" to make * ":help i_^_CTRL-D" work. * Insert '-' before and after "CTRL-X" when applicable. */ if (*s < ' ' || (*s == '^' && s[1] && (ASCII_ISALPHA(s[1]) || vim_strchr((char_u *)"?@[\\]^", s[1]) != NULL))) { if (d > IObuff && d[-1] != '_' && d[-1] != '\\') *d++ = '_'; // prepend a '_' to make x_CTRL-x STRCPY(d, "CTRL-"); d += 5; if (*s < ' ') { #ifdef EBCDIC *d++ = CtrlChar(*s); #else *d++ = *s + '@'; #endif if (d[-1] == '\\') *d++ = '\\'; // double a backslash } else *d++ = *++s; if (s[1] != NUL && s[1] != '_') *d++ = '_'; // append a '_' continue; } else if (*s == '^') // "^" or "CTRL-^" or "^_" *d++ = '\\'; /* * Insert a backslash before a backslash after a slash, for search * pattern tags: "/\|" --> "/\\|". */ else if (s[0] == '\\' && s[1] != '\\' && *arg == '/' && s == arg + 1) *d++ = '\\'; // "CTRL-\_" -> "CTRL-\\_" to avoid the special meaning of "\_" in // "CTRL-\_CTRL-N" if (STRNICMP(s, "CTRL-\\_", 7) == 0) { STRCPY(d, "CTRL-\\\\"); d += 7; s += 6; } *d++ = *s; /* * If tag contains "({" or "([", tag terminates at the "(". * This is for help on functions, e.g.: abs({expr}). */ if (*s == '(' && (s[1] == '{' || s[1] =='[')) break; /* * If tag starts with ', toss everything after a second '. Fixes * CTRL-] on 'option'. (would include the trailing '.'). */ if (*s == '\'' && s > arg && *arg == '\'') break; // Also '{' and '}'. if (*s == '}' && s > arg && *arg == '{') break; } *d = NUL; if (*IObuff == '`') { if (d > IObuff + 2 && d[-1] == '`') { // remove the backticks from `command` mch_memmove(IObuff, IObuff + 1, STRLEN(IObuff)); d[-2] = NUL; } else if (d > IObuff + 3 && d[-2] == '`' && d[-1] == ',') { // remove the backticks and comma from `command`, mch_memmove(IObuff, IObuff + 1, STRLEN(IObuff)); d[-3] = NUL; } else if (d > IObuff + 4 && d[-3] == '`' && d[-2] == '\\' && d[-1] == '.') { // remove the backticks and dot from `command`\. mch_memmove(IObuff, IObuff + 1, STRLEN(IObuff)); d[-4] = NUL; } } } } *matches = (char_u **)""; *num_matches = 0; flags = TAG_HELP | TAG_REGEXP | TAG_NAMES | TAG_VERBOSE | TAG_NO_TAGFUNC; if (keep_lang) flags |= TAG_KEEP_LANG; if (find_tags(IObuff, num_matches, matches, flags, (int)MAXCOL, NULL) == OK && *num_matches > 0) { // Sort the matches found on the heuristic number that is after the // tag name. qsort((void *)*matches, (size_t)*num_matches, sizeof(char_u *), help_compare); // Delete more than TAG_MANY to reduce the size of the listing. while (*num_matches > TAG_MANY) vim_free((*matches)[--*num_matches]); } return OK; } /* * Called when starting to edit a buffer for a help file. */ static void prepare_help_buffer(void) { char_u *p; curbuf->b_help = TRUE; #ifdef FEAT_QUICKFIX set_string_option_direct((char_u *)"buftype", -1, (char_u *)"help", OPT_FREE|OPT_LOCAL, 0); #endif /* * Always set these options after jumping to a help tag, because the * user may have an autocommand that gets in the way. * Accept all ASCII chars for keywords, except ' ', '*', '"', '|', and * latin1 word characters (for translated help files). * Only set it when needed, buf_init_chartab() is some work. */ p = #ifdef EBCDIC (char_u *)"65-255,^*,^|,^\""; #else (char_u *)"!-~,^*,^|,^\",192-255"; #endif if (STRCMP(curbuf->b_p_isk, p) != 0) { set_string_option_direct((char_u *)"isk", -1, p, OPT_FREE|OPT_LOCAL, 0); check_buf_options(curbuf); (void)buf_init_chartab(curbuf, FALSE); } #ifdef FEAT_FOLDING // Don't use the global foldmethod. set_string_option_direct((char_u *)"fdm", -1, (char_u *)"manual", OPT_FREE|OPT_LOCAL, 0); #endif curbuf->b_p_ts = 8; // 'tabstop' is 8 curwin->w_p_list = FALSE; // no list mode curbuf->b_p_ma = FALSE; // not modifiable curbuf->b_p_bin = FALSE; // reset 'bin' before reading file curwin->w_p_nu = 0; // no line numbers curwin->w_p_rnu = 0; // no relative line numbers RESET_BINDING(curwin); // no scroll or cursor binding #ifdef FEAT_ARABIC curwin->w_p_arab = FALSE; // no arabic mode #endif #ifdef FEAT_RIGHTLEFT curwin->w_p_rl = FALSE; // help window is left-to-right #endif #ifdef FEAT_FOLDING curwin->w_p_fen = FALSE; // No folding in the help window #endif #ifdef FEAT_DIFF curwin->w_p_diff = FALSE; // No 'diff' #endif #ifdef FEAT_SPELL curwin->w_p_spell = FALSE; // No spell checking #endif set_buflisted(FALSE); } /* * After reading a help file: May cleanup a help buffer when syntax * highlighting is not used. */ void fix_help_buffer(void) { linenr_T lnum; char_u *line; int in_example = FALSE; int len; char_u *fname; char_u *p; char_u *rt; int mustfree; // Set filetype to "help" if still needed. if (STRCMP(curbuf->b_p_ft, "help") != 0) { ++curbuf_lock; set_option_value((char_u *)"ft", 0L, (char_u *)"help", OPT_LOCAL); --curbuf_lock; } #ifdef FEAT_SYN_HL if (!syntax_present(curwin)) #endif { for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum) { line = ml_get_buf(curbuf, lnum, FALSE); len = (int)STRLEN(line); if (in_example && len > 0 && !VIM_ISWHITE(line[0])) { // End of example: non-white or '<' in first column. if (line[0] == '<') { // blank-out a '<' in the first column line = ml_get_buf(curbuf, lnum, TRUE); line[0] = ' '; } in_example = FALSE; } if (!in_example && len > 0) { if (line[len - 1] == '>' && (len == 1 || line[len - 2] == ' ')) { // blank-out a '>' in the last column (start of example) line = ml_get_buf(curbuf, lnum, TRUE); line[len - 1] = ' '; in_example = TRUE; } else if (line[len - 1] == '~') { // blank-out a '~' at the end of line (header marker) line = ml_get_buf(curbuf, lnum, TRUE); line[len - 1] = ' '; } } } } /* * In the "help.txt" and "help.abx" file, add the locally added help * files. This uses the very first line in the help file. */ fname = gettail(curbuf->b_fname); if (fnamecmp(fname, "help.txt") == 0 #ifdef FEAT_MULTI_LANG || (fnamencmp(fname, "help.", 5) == 0 && ASCII_ISALPHA(fname[5]) && ASCII_ISALPHA(fname[6]) && TOLOWER_ASC(fname[7]) == 'x' && fname[8] == NUL) #endif ) { for (lnum = 1; lnum < curbuf->b_ml.ml_line_count; ++lnum) { line = ml_get_buf(curbuf, lnum, FALSE); if (strstr((char *)line, "*local-additions*") == NULL) continue; // Go through all directories in 'runtimepath', skipping // $VIMRUNTIME. p = p_rtp; while (*p != NUL) { copy_option_part(&p, NameBuff, MAXPATHL, ","); mustfree = FALSE; rt = vim_getenv((char_u *)"VIMRUNTIME", &mustfree); if (rt != NULL && fullpathcmp(rt, NameBuff, FALSE, TRUE) != FPC_SAME) { int fcount; char_u **fnames; FILE *fd; char_u *s; int fi; vimconv_T vc; char_u *cp; // Find all "doc/ *.txt" files in this directory. add_pathsep(NameBuff); #ifdef FEAT_MULTI_LANG STRCAT(NameBuff, "doc/*.??[tx]"); #else STRCAT(NameBuff, "doc/*.txt"); #endif if (gen_expand_wildcards(1, &NameBuff, &fcount, &fnames, EW_FILE|EW_SILENT) == OK && fcount > 0) { #ifdef FEAT_MULTI_LANG int i1, i2; char_u *f1, *f2; char_u *t1, *t2; char_u *e1, *e2; // If foo.abx is found use it instead of foo.txt in // the same directory. for (i1 = 0; i1 < fcount; ++i1) { for (i2 = 0; i2 < fcount; ++i2) { if (i1 == i2) continue; if (fnames[i1] == NULL || fnames[i2] == NULL) continue; f1 = fnames[i1]; f2 = fnames[i2]; t1 = gettail(f1); t2 = gettail(f2); e1 = vim_strrchr(t1, '.'); e2 = vim_strrchr(t2, '.'); if (e1 == NULL || e2 == NULL) continue; if (fnamecmp(e1, ".txt") != 0 && fnamecmp(e1, fname + 4) != 0) { // Not .txt and not .abx, remove it. VIM_CLEAR(fnames[i1]); continue; } if (e1 - f1 != e2 - f2 || fnamencmp(f1, f2, e1 - f1) != 0) continue; if (fnamecmp(e1, ".txt") == 0 && fnamecmp(e2, fname + 4) == 0) // use .abx instead of .txt VIM_CLEAR(fnames[i1]); } } #endif for (fi = 0; fi < fcount; ++fi) { if (fnames[fi] == NULL) continue; fd = mch_fopen((char *)fnames[fi], "r"); if (fd != NULL) { vim_fgets(IObuff, IOSIZE, fd); if (IObuff[0] == '*' && (s = vim_strchr(IObuff + 1, '*')) != NULL) { int this_utf = MAYBE; // Change tag definition to a // reference and remove <CR>/<NL>. IObuff[0] = '|'; *s = '|'; while (*s != NUL) { if (*s == '\r' || *s == '\n') *s = NUL; // The text is utf-8 when a byte // above 127 is found and no // illegal byte sequence is found. if (*s >= 0x80 && this_utf != FALSE) { int l; this_utf = TRUE; l = utf_ptr2len(s); if (l == 1) this_utf = FALSE; s += l - 1; } ++s; } // The help file is latin1 or utf-8; // conversion to the current // 'encoding' may be required. vc.vc_type = CONV_NONE; convert_setup(&vc, (char_u *)( this_utf == TRUE ? "utf-8" : "latin1"), p_enc); if (vc.vc_type == CONV_NONE) // No conversion needed. cp = IObuff; else { // Do the conversion. If it fails // use the unconverted text. cp = string_convert(&vc, IObuff, NULL); if (cp == NULL) cp = IObuff; } convert_setup(&vc, NULL, NULL); ml_append(lnum, cp, (colnr_T)0, FALSE); if (cp != IObuff) vim_free(cp); ++lnum; } fclose(fd); } } FreeWild(fcount, fnames); } } if (mustfree) vim_free(rt); } break; } } } /* * ":exusage" */ void ex_exusage(exarg_T *eap UNUSED) { do_cmdline_cmd((char_u *)"help ex-cmd-index"); } /* * ":viusage" */ void ex_viusage(exarg_T *eap UNUSED) { do_cmdline_cmd((char_u *)"help normal-index"); } /* * Generate tags in one help directory. */ static void helptags_one( char_u *dir, // doc directory char_u *ext, // suffix, ".txt", ".itx", ".frx", etc. char_u *tagfname, // "tags" for English, "tags-fr" for French. int add_help_tags, // add "help-tags" tag int ignore_writeerr) // ignore write error { FILE *fd_tags; FILE *fd; garray_T ga; int filecount; char_u **files; char_u *p1, *p2; int fi; char_u *s; int i; char_u *fname; int dirlen; int utf8 = MAYBE; int this_utf8; int firstline; int mix = FALSE; // detected mixed encodings /* * Find all *.txt files. */ dirlen = (int)STRLEN(dir); STRCPY(NameBuff, dir); STRCAT(NameBuff, "/**/*"); STRCAT(NameBuff, ext); if (gen_expand_wildcards(1, &NameBuff, &filecount, &files, EW_FILE|EW_SILENT) == FAIL || filecount == 0) { if (!got_int) semsg(_("E151: No match: %s"), NameBuff); return; } /* * Open the tags file for writing. * Do this before scanning through all the files. */ STRCPY(NameBuff, dir); add_pathsep(NameBuff); STRCAT(NameBuff, tagfname); fd_tags = mch_fopen((char *)NameBuff, "w"); if (fd_tags == NULL) { if (!ignore_writeerr) semsg(_("E152: Cannot open %s for writing"), NameBuff); FreeWild(filecount, files); return; } /* * If using the "++t" argument or generating tags for "$VIMRUNTIME/doc" * add the "help-tags" tag. */ ga_init2(&ga, (int)sizeof(char_u *), 100); if (add_help_tags || fullpathcmp((char_u *)"$VIMRUNTIME/doc", dir, FALSE, TRUE) == FPC_SAME) { if (ga_grow(&ga, 1) == FAIL) got_int = TRUE; else { s = alloc(18 + (unsigned)STRLEN(tagfname)); if (s == NULL) got_int = TRUE; else { sprintf((char *)s, "help-tags\t%s\t1\n", tagfname); ((char_u **)ga.ga_data)[ga.ga_len] = s; ++ga.ga_len; } } } /* * Go over all the files and extract the tags. */ for (fi = 0; fi < filecount && !got_int; ++fi) { fd = mch_fopen((char *)files[fi], "r"); if (fd == NULL) { semsg(_("E153: Unable to open %s for reading"), files[fi]); continue; } fname = files[fi] + dirlen + 1; firstline = TRUE; while (!vim_fgets(IObuff, IOSIZE, fd) && !got_int) { if (firstline) { // Detect utf-8 file by a non-ASCII char in the first line. this_utf8 = MAYBE; for (s = IObuff; *s != NUL; ++s) if (*s >= 0x80) { int l; this_utf8 = TRUE; l = utf_ptr2len(s); if (l == 1) { // Illegal UTF-8 byte sequence. this_utf8 = FALSE; break; } s += l - 1; } if (this_utf8 == MAYBE) // only ASCII characters found this_utf8 = FALSE; if (utf8 == MAYBE) // first file utf8 = this_utf8; else if (utf8 != this_utf8) { semsg(_("E670: Mix of help file encodings within a language: %s"), files[fi]); mix = !got_int; got_int = TRUE; } firstline = FALSE; } p1 = vim_strchr(IObuff, '*'); // find first '*' while (p1 != NULL) { // Use vim_strbyte() instead of vim_strchr() so that when // 'encoding' is dbcs it still works, don't find '*' in the // second byte. p2 = vim_strbyte(p1 + 1, '*'); // find second '*' if (p2 != NULL && p2 > p1 + 1) // skip "*" and "**" { for (s = p1 + 1; s < p2; ++s) if (*s == ' ' || *s == '\t' || *s == '|') break; /* * Only accept a *tag* when it consists of valid * characters, there is white space before it and is * followed by a white character or end-of-line. */ if (s == p2 && (p1 == IObuff || p1[-1] == ' ' || p1[-1] == '\t') && (vim_strchr((char_u *)" \t\n\r", s[1]) != NULL || s[1] == '\0')) { *p2 = '\0'; ++p1; if (ga_grow(&ga, 1) == FAIL) { got_int = TRUE; break; } s = alloc(p2 - p1 + STRLEN(fname) + 2); if (s == NULL) { got_int = TRUE; break; } ((char_u **)ga.ga_data)[ga.ga_len] = s; ++ga.ga_len; sprintf((char *)s, "%s\t%s", p1, fname); // find next '*' p2 = vim_strchr(p2 + 1, '*'); } } p1 = p2; } line_breakcheck(); } fclose(fd); } FreeWild(filecount, files); if (!got_int) { /* * Sort the tags. */ if (ga.ga_data != NULL) sort_strings((char_u **)ga.ga_data, ga.ga_len); /* * Check for duplicates. */ for (i = 1; i < ga.ga_len; ++i) { p1 = ((char_u **)ga.ga_data)[i - 1]; p2 = ((char_u **)ga.ga_data)[i]; while (*p1 == *p2) { if (*p2 == '\t') { *p2 = NUL; vim_snprintf((char *)NameBuff, MAXPATHL, _("E154: Duplicate tag \"%s\" in file %s/%s"), ((char_u **)ga.ga_data)[i], dir, p2 + 1); emsg((char *)NameBuff); *p2 = '\t'; break; } ++p1; ++p2; } } if (utf8 == TRUE) fprintf(fd_tags, "!_TAG_FILE_ENCODING\tutf-8\t//\n"); /* * Write the tags into the file. */ for (i = 0; i < ga.ga_len; ++i) { s = ((char_u **)ga.ga_data)[i]; if (STRNCMP(s, "help-tags\t", 10) == 0) // help-tags entry was added in formatted form fputs((char *)s, fd_tags); else { fprintf(fd_tags, "%s\t/*", s); for (p1 = s; *p1 != '\t'; ++p1) { // insert backslash before '\\' and '/' if (*p1 == '\\' || *p1 == '/') putc('\\', fd_tags); putc(*p1, fd_tags); } fprintf(fd_tags, "*\n"); } } } if (mix) got_int = FALSE; // continue with other languages for (i = 0; i < ga.ga_len; ++i) vim_free(((char_u **)ga.ga_data)[i]); ga_clear(&ga); fclose(fd_tags); // there is no check for an error... } /* * Generate tags in one help directory, taking care of translations. */ static void do_helptags(char_u *dirname, int add_help_tags, int ignore_writeerr) { #ifdef FEAT_MULTI_LANG int len; int i, j; garray_T ga; char_u lang[2]; char_u ext[5]; char_u fname[8]; int filecount; char_u **files; // Get a list of all files in the help directory and in subdirectories. STRCPY(NameBuff, dirname); add_pathsep(NameBuff); STRCAT(NameBuff, "**"); if (gen_expand_wildcards(1, &NameBuff, &filecount, &files, EW_FILE|EW_SILENT) == FAIL || filecount == 0) { semsg(_("E151: No match: %s"), NameBuff); return; } // Go over all files in the directory to find out what languages are // present. ga_init2(&ga, 1, 10); for (i = 0; i < filecount; ++i) { len = (int)STRLEN(files[i]); if (len > 4) { if (STRICMP(files[i] + len - 4, ".txt") == 0) { // ".txt" -> language "en" lang[0] = 'e'; lang[1] = 'n'; } else if (files[i][len - 4] == '.' && ASCII_ISALPHA(files[i][len - 3]) && ASCII_ISALPHA(files[i][len - 2]) && TOLOWER_ASC(files[i][len - 1]) == 'x') { // ".abx" -> language "ab" lang[0] = TOLOWER_ASC(files[i][len - 3]); lang[1] = TOLOWER_ASC(files[i][len - 2]); } else continue; // Did we find this language already? for (j = 0; j < ga.ga_len; j += 2) if (STRNCMP(lang, ((char_u *)ga.ga_data) + j, 2) == 0) break; if (j == ga.ga_len) { // New language, add it. if (ga_grow(&ga, 2) == FAIL) break; ((char_u *)ga.ga_data)[ga.ga_len++] = lang[0]; ((char_u *)ga.ga_data)[ga.ga_len++] = lang[1]; } } } /* * Loop over the found languages to generate a tags file for each one. */ for (j = 0; j < ga.ga_len; j += 2) { STRCPY(fname, "tags-xx"); fname[5] = ((char_u *)ga.ga_data)[j]; fname[6] = ((char_u *)ga.ga_data)[j + 1]; if (fname[5] == 'e' && fname[6] == 'n') { // English is an exception: use ".txt" and "tags". fname[4] = NUL; STRCPY(ext, ".txt"); } else { // Language "ab" uses ".abx" and "tags-ab". STRCPY(ext, ".xxx"); ext[1] = fname[5]; ext[2] = fname[6]; } helptags_one(dirname, ext, fname, add_help_tags, ignore_writeerr); } ga_clear(&ga); FreeWild(filecount, files); #else // No language support, just use "*.txt" and "tags". helptags_one(dirname, (char_u *)".txt", (char_u *)"tags", add_help_tags, ignore_writeerr); #endif } static void helptags_cb(char_u *fname, void *cookie) { do_helptags(fname, *(int *)cookie, TRUE); } /* * ":helptags" */ void ex_helptags(exarg_T *eap) { expand_T xpc; char_u *dirname; int add_help_tags = FALSE; // Check for ":helptags ++t {dir}". if (STRNCMP(eap->arg, "++t", 3) == 0 && VIM_ISWHITE(eap->arg[3])) { add_help_tags = TRUE; eap->arg = skipwhite(eap->arg + 3); } if (STRCMP(eap->arg, "ALL") == 0) { do_in_path(p_rtp, (char_u *)"doc", DIP_ALL + DIP_DIR, helptags_cb, &add_help_tags); } else { ExpandInit(&xpc); xpc.xp_context = EXPAND_DIRECTORIES; dirname = ExpandOne(&xpc, eap->arg, NULL, WILD_LIST_NOTFOUND|WILD_SILENT, WILD_EXPAND_FREE); if (dirname == NULL || !mch_isdir(dirname)) semsg(_("E150: Not a directory: %s"), eap->arg); else do_helptags(dirname, add_help_tags, FALSE); vim_free(dirname); } } /* * Make the user happy. */ void ex_smile(exarg_T *eap UNUSED) { static char *code[] = { "\34 \4o\14$\4ox\30 \2o\30$\1ox\25 \2o\36$\1o\11 \1o\1$\3 \2$\1 \1o\1$x\5 \1o\1 \1$\1 \2o\10 \1o\44$\1o\7 \2$\1 \2$\1 \2$\1o\1$x\2 \2o\1 \1$\1 \1$\1 \1\"\1$\6 \1o\11$\4 \15$\4 \11$\1o\7 \3$\1o\2$\1o\1$x\2 \1\"\6$\1o\1$\5 \1o\11$\6 \13$\6 \12$\1o\4 \10$x\4 \7$\4 \13$\6 \13$\6 \27$x\4 \27$\4 \15$\4 \16$\2 \3\"\3$x\5 \1\"\3$\4\"\61$\5 \1\"\3$x\6 \3$\3 \1o\62$\5 \1\"\3$\1ox\5 \1o\2$\1\"\3 \63$\7 \3$\1ox\5 \3$\4 \55$\1\"\1 \1\"\6$", "\5o\4$\1ox\4 \1o\3$\4o\5$\2 \45$\3 \1o\21$x\4 \10$\1\"\4$\3 \42$\5 \4$\10\"x\3 \4\"\7 \4$\4 \1\"\34$\1\"\6 \1o\3$x\16 \1\"\3$\1o\5 \3\"\22$\1\"\2$\1\"\11 \3$x\20 \3$\1o\12 \1\"\2$\2\"\6$\4\"\13 \1o\3$x\21 \4$\1o\40 \1o\3$\1\"x\22 \1\"\4$\1o\6 \1o\6$\1o\1\"\4$\1o\10 \1o\4$x\24 \1\"\5$\2o\5 \2\"\4$\1o\5$\1o\3 \1o\4$\2\"x\27 \2\"\5$\4o\2 \1\"\3$\1o\11$\3\"x\32 \2\"\7$\2o\1 \12$x\42 \4\"\13$x\46 \14$x\47 \12$\1\"x\50 \1\"\3$\4\"x" }; char *p; int n; int i; msg_start(); msg_putchar('\n'); for (i = 0; i < 2; ++i) for (p = code[i]; *p != NUL; ++p) if (*p == 'x') msg_putchar('\n'); else for (n = *p++; n > 0; --n) if (*p == 'o' || *p == '$') msg_putchar_attr(*p, HL_ATTR(HLF_L)); else msg_putchar(*p); msg_clr_eos(); } /* * ":drop" * Opens the first argument in a window. When there are two or more arguments * the argument list is redefined. */ void ex_drop(exarg_T *eap) { int split = FALSE; win_T *wp; buf_T *buf; tabpage_T *tp; if (ERROR_IF_POPUP_WINDOW || ERROR_IF_TERM_POPUP_WINDOW) return; /* * Check if the first argument is already being edited in a window. If * so, jump to that window. * We would actually need to check all arguments, but that's complicated * and mostly only one file is dropped. * This also ignores wildcards, since it is very unlikely the user is * editing a file name with a wildcard character. */ set_arglist(eap->arg); /* * Expanding wildcards may result in an empty argument list. E.g. when * editing "foo.pyc" and ".pyc" is in 'wildignore'. Assume that we * already did an error message for this. */ if (ARGCOUNT == 0) return; if (cmdmod.tab) { // ":tab drop file ...": open a tab for each argument that isn't // edited in a window yet. It's like ":tab all" but without closing // windows or tabs. ex_all(eap); } else { // ":drop file ...": Edit the first argument. Jump to an existing // window if possible, edit in current window if the current buffer // can be abandoned, otherwise open a new window. buf = buflist_findnr(ARGLIST[0].ae_fnum); FOR_ALL_TAB_WINDOWS(tp, wp) { if (wp->w_buffer == buf) { goto_tabpage_win(tp, wp); curwin->w_arg_idx = 0; return; } } /* * Check whether the current buffer is changed. If so, we will need * to split the current window or data could be lost. * Skip the check if the 'hidden' option is set, as in this case the * buffer won't be lost. */ if (!buf_hide(curbuf)) { ++emsg_off; split = check_changed(curbuf, CCGD_AW | CCGD_EXCMD); --emsg_off; } // Fake a ":sfirst" or ":first" command edit the first argument. if (split) { eap->cmdidx = CMD_sfirst; eap->cmd[0] = 's'; } else eap->cmdidx = CMD_first; ex_rewind(eap); } } /* * Skip over the pattern argument of ":vimgrep /pat/[g][j]". * Put the start of the pattern in "*s", unless "s" is NULL. * If "flags" is not NULL put the flags in it: VGR_GLOBAL, VGR_NOJUMP. * If "s" is not NULL terminate the pattern with a NUL. * Return a pointer to the char just past the pattern plus flags. */ char_u * skip_vimgrep_pat(char_u *p, char_u **s, int *flags) { int c; if (vim_isIDc(*p)) { // ":vimgrep pattern fname" if (s != NULL) *s = p; p = skiptowhite(p); if (s != NULL && *p != NUL) *p++ = NUL; } else { // ":vimgrep /pattern/[g][j] fname" if (s != NULL) *s = p + 1; c = *p; p = skip_regexp(p + 1, c, TRUE); if (*p != c) return NULL; // Truncate the pattern. if (s != NULL) *p = NUL; ++p; // Find the flags while (*p == 'g' || *p == 'j') { if (flags != NULL) { if (*p == 'g') *flags |= VGR_GLOBAL; else *flags |= VGR_NOJUMP; } ++p; } } return p; } #if defined(FEAT_EVAL) || defined(PROTO) /* * List v:oldfiles in a nice way. */ void ex_oldfiles(exarg_T *eap UNUSED) { list_T *l = get_vim_var_list(VV_OLDFILES); listitem_T *li; int nr = 0; char_u *fname; if (l == NULL) msg(_("No old files")); else { msg_start(); msg_scroll = TRUE; for (li = l->lv_first; li != NULL && !got_int; li = li->li_next) { ++nr; fname = tv_get_string(&li->li_tv); if (!message_filtered(fname)) { msg_outnum((long)nr); msg_puts(": "); msg_outtrans(fname); msg_clr_eos(); msg_putchar('\n'); out_flush(); // output one line at a time ui_breakcheck(); } } // Assume "got_int" was set to truncate the listing. got_int = FALSE; # ifdef FEAT_BROWSE_CMD if (cmdmod.browse) { quit_more = FALSE; nr = prompt_for_number(FALSE); msg_starthere(); if (nr > 0) { char_u *p = list_find_str(get_vim_var_list(VV_OLDFILES), (long)nr); if (p != NULL) { p = expand_env_save(p); eap->arg = p; eap->cmdidx = CMD_edit; cmdmod.browse = FALSE; do_exedit(eap, NULL); vim_free(p); } } } # endif } } #endif