diff options
Diffstat (limited to 'src/ex_cmds.c')
| -rw-r--r-- | src/ex_cmds.c | 5348 |
1 files changed, 5348 insertions, 0 deletions
diff --git a/src/ex_cmds.c b/src/ex_cmds.c new file mode 100644 index 0000000..b678f66 --- /dev/null +++ b/src/ex_cmds.c @@ -0,0 +1,5348 @@ +/* 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); + +/* + * ":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_lc; // sort using locale +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 +string_compare(const void *s1, const void *s2) +{ + if (sort_lc) + return strcoll((char *)s1, (char *)s2); + return sort_ic ? STRICMP(s1, s2) : STRCMP(s1, 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 = string_compare(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_lc = 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 == 'l') + sort_lc = 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 || string_compare(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.cmod_flags & CMOD_LOCKMARKS) == 0) + { + 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.cmod_flags & CMOD_LOCKMARKS) == 0) + { + curbuf->b_op_start.lnum = dest + 1; + curbuf->b_op_end.lnum = dest + num_lines; + } + } + if ((cmdmod.cmod_flags & CMOD_LOCKMARKS) == 0) + 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.cmod_flags & CMOD_LOCKMARKS) == 0) + { + 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_cmod_flags = cmdmod.cmod_flags; +#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.cmod_flags &= ~CMOD_LOCKMARKS; + + 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.cmod_flags & CMOD_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 if (save_cmod_flags & CMOD_LOCKMARKS) + { + // Move marks from the lines below the new lines down by + // the number of lines lost. + // Move marks from the lines that will be deleted to the + // new lines and below. + mark_adjust(line2 + 1, (linenr_T)MAXLNUM, + linecount - read_linecount, 0L); + 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.cmod_flags = save_cmod_flags; + if (curbuf != old_curbuf) + { + --no_wait_return; + emsg(_("E135: *Filter* Autocommands must not change current buffer")); + } + else if (cmdmod.cmod_flags & CMOD_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; +#endif + int keep_termcap = !termcap_active; + + /* + * 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) + { + if (!keep_termcap) + 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 + + if (!keep_termcap) // if keep_termcap is TRUE didn't stop termcap + 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(); + + if (shell_name == NULL) + return NULL; + + // 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.cmod_flags & CMOD_KEEPALT) == 0) + 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.cmod_flags & CMOD_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.cmod_flags & CMOD_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.cmod_flags & CMOD_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.cmod_flags & CMOD_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.cmod_flags & CMOD_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.cmod_flags & CMOD_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 + * ECMD_ALTBUF: like ECMD_ADDBUF and also set the alternate file + * 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 dot_path[] = "."; + 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.cmod_flags & CMOD_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 = dot_path; + } + 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 | ECMD_ALTBUF)) + && (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 | ECMD_ALTBUF)))) + && 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 | ECMD_ALTBUF))) + { + if ((cmdmod.cmod_flags & CMOD_KEEPALT) == 0) + curwin->w_alt_fnum = curbuf->b_fnum; + if (oldwin != NULL) + buflist_altfpos(oldwin); + } + + if (fnum) + buf = buflist_findnr(fnum); + else + { + if (flags & (ECMD_ADDBUF | ECMD_ALTBUF)) + { + // Default the line number to zero to avoid that a wininfo item + // is added for the current window. + linenr_T tlnum = 0; + buf_T *newbuf; + + if (command != NULL) + { + tlnum = atol((char *)command); + if (tlnum <= 0) + tlnum = 1L; + } + // Add BLN_NOCURWIN to avoid a new wininfo items are associated + // with the current window. + newbuf = buflist_new(ffname, sfname, tlnum, + BLN_LISTED | BLN_NOCURWIN); + if (newbuf != NULL && (flags & ECMD_ALTBUF)) + curwin->w_alt_fnum = newbuf->b_fnum; + 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) + { +#ifdef FEAT_CMDWIN + int save_cmdwin_type = cmdwin_type; + + // BufLeave applies to the old buffer. + cmdwin_type = 0; +#endif + /* + * 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); +#ifdef FEAT_CMDWIN + cmdwin_type = save_cmdwin_type; +#endif + 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; + int did_decrement; + buf_T *was_curbuf = curbuf; + + // 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); + did_decrement = 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 + { + // close_buffer() has decremented the window count, + // increment it again here and restore w_buffer. + if (did_decrement && buf_valid(was_curbuf)) + ++was_curbuf->b_nwindows; + if (win_valid_any_tab(oldwin) && oldwin->w_buffer == NULL) + oldwin->w_buffer = was_curbuf; + 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 | ECMD_ALTBUF)) || 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 the buffer was used before, store the current contents so that + // the reload can be undone. Do not do this if the (empty) buffer is + // being re-used for another file. + if (!(curbuf->b_flags & BF_NEVERLOADED) + && (p_ur < 0 || curbuf->b_ml.ml_line_count <= p_ur)) + { + // 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|DOCMD_RANGEOK); + +#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); + +#ifdef FEAT_EVAL + if (not_in_vim9(eap) == FAIL) + return; +#endif + // 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.cmod_flags & CMOD_LOCKMARKS) == 0) + { + 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; + +#ifdef FEAT_EVAL + if (not_in_vim9(eap) == FAIL) + return; +#endif + 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 +ex_substitute(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, magic_isset(), + &eap->arg, NULL, 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; + + if (eap->skip) + return; + 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.cmod_flags & CMOD_KEEPPATTERNS) == 0) + save_re_pat(RE_SUBST, pat, magic_isset()); + // 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 + { +#ifdef FEAT_EVAL + if (in_vim9script()) + { + // ignore 'gdefault' and 'edcompatible' + subflags.do_all = FALSE; + subflags.do_ask = FALSE; + } + else +#endif + 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) + { + semsg(_(e_trailing_arg), cmd); + 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_invalid_command)); + 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, magic_isset()); + + /* + * 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; + int save_p_lz = p_lz; +#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; + + // avoid calling update_screen() in vgetorpeek() + p_lz = FALSE; + + 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); + p_lz = save_p_lz; + + // 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, magic_isset(), 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, magic_isset(), 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.cmod_flags & CMOD_LOCKMARKS) == 0) + { + // 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, magic_isset(), &eap->arg, NULL, 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_invalid_command)); + 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 + +/* + * 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.cmod_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; + if (!bufIsChanged(curbuf)) + { + int save_ar = curbuf->b_p_ar; + + // reload the file if it is newer + curbuf->b_p_ar = TRUE; + buf_check_timestamp(curbuf, FALSE); + curbuf->b_p_ar = save_ar; + } + 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.cmod_flags & CMOD_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.cmod_flags &= ~CMOD_BROWSE; + do_exedit(eap, NULL); + vim_free(p); + } + } + } +# endif + } +} +#endif |