Mercurial > vim
view src/filepath.c @ 24061:d6489b4eb14e v8.2.2572
patch 8.2.2572: Vim9: crash when getting the types for a legacy function
Commit: https://github.com/vim/vim/commit/18062fcad648540369db5989aac297431119e037
Author: Bram Moolenaar <Bram@vim.org>
Date: Fri Mar 5 21:35:47 2021 +0100
patch 8.2.2572: Vim9: crash when getting the types for a legacy function
Problem: Vim9: crash when getting the types for a legacy function.
Solution: Initialize the type list growarray. (closes https://github.com/vim/vim/issues/7929)
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Fri, 05 Mar 2021 21:45:02 +0100 |
parents | 7d3ee4d508b5 |
children | 083f07f99e20 |
line wrap: on
line source
/* 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. */ /* * filepath.c: dealing with file names and paths. */ #include "vim.h" #ifdef MSWIN /* * Functions for ":8" filename modifier: get 8.3 version of a filename. */ /* * Get the short path (8.3) for the filename in "fnamep". * Only works for a valid file name. * When the path gets longer "fnamep" is changed and the allocated buffer * is put in "bufp". * *fnamelen is the length of "fnamep" and set to 0 for a nonexistent path. * Returns OK on success, FAIL on failure. */ static int get_short_pathname(char_u **fnamep, char_u **bufp, int *fnamelen) { int l, len; WCHAR *newbuf; WCHAR *wfname; len = MAXPATHL; newbuf = malloc(len * sizeof(*newbuf)); if (newbuf == NULL) return FAIL; wfname = enc_to_utf16(*fnamep, NULL); if (wfname == NULL) { vim_free(newbuf); return FAIL; } l = GetShortPathNameW(wfname, newbuf, len); if (l > len - 1) { // If that doesn't work (not enough space), then save the string // and try again with a new buffer big enough. WCHAR *newbuf_t = newbuf; newbuf = vim_realloc(newbuf, (l + 1) * sizeof(*newbuf)); if (newbuf == NULL) { vim_free(wfname); vim_free(newbuf_t); return FAIL; } // Really should always succeed, as the buffer is big enough. l = GetShortPathNameW(wfname, newbuf, l+1); } if (l != 0) { char_u *p = utf16_to_enc(newbuf, NULL); if (p != NULL) { vim_free(*bufp); *fnamep = *bufp = p; } else { vim_free(wfname); vim_free(newbuf); return FAIL; } } vim_free(wfname); vim_free(newbuf); *fnamelen = l == 0 ? l : (int)STRLEN(*bufp); return OK; } /* * Get the short path (8.3) for the filename in "fname". The converted * path is returned in "bufp". * * Some of the directories specified in "fname" may not exist. This function * will shorten the existing directories at the beginning of the path and then * append the remaining non-existing path. * * fname - Pointer to the filename to shorten. On return, contains the * pointer to the shortened pathname * bufp - Pointer to an allocated buffer for the filename. * fnamelen - Length of the filename pointed to by fname * * Returns OK on success (or nothing done) and FAIL on failure (out of memory). */ static int shortpath_for_invalid_fname( char_u **fname, char_u **bufp, int *fnamelen) { char_u *short_fname, *save_fname, *pbuf_unused; char_u *endp, *save_endp; char_u ch; int old_len, len; int new_len, sfx_len; int retval = OK; // Make a copy old_len = *fnamelen; save_fname = vim_strnsave(*fname, old_len); pbuf_unused = NULL; short_fname = NULL; endp = save_fname + old_len - 1; // Find the end of the copy save_endp = endp; /* * Try shortening the supplied path till it succeeds by removing one * directory at a time from the tail of the path. */ len = 0; for (;;) { // go back one path-separator while (endp > save_fname && !after_pathsep(save_fname, endp + 1)) --endp; if (endp <= save_fname) break; // processed the complete path /* * Replace the path separator with a NUL and try to shorten the * resulting path. */ ch = *endp; *endp = 0; short_fname = save_fname; len = (int)STRLEN(short_fname) + 1; if (get_short_pathname(&short_fname, &pbuf_unused, &len) == FAIL) { retval = FAIL; goto theend; } *endp = ch; // preserve the string if (len > 0) break; // successfully shortened the path // failed to shorten the path. Skip the path separator --endp; } if (len > 0) { /* * Succeeded in shortening the path. Now concatenate the shortened * path with the remaining path at the tail. */ // Compute the length of the new path. sfx_len = (int)(save_endp - endp) + 1; new_len = len + sfx_len; *fnamelen = new_len; vim_free(*bufp); if (new_len > old_len) { // There is not enough space in the currently allocated string, // copy it to a buffer big enough. *fname = *bufp = vim_strnsave(short_fname, new_len); if (*fname == NULL) { retval = FAIL; goto theend; } } else { // Transfer short_fname to the main buffer (it's big enough), // unless get_short_pathname() did its work in-place. *fname = *bufp = save_fname; if (short_fname != save_fname) vim_strncpy(save_fname, short_fname, len); save_fname = NULL; } // concat the not-shortened part of the path vim_strncpy(*fname + len, endp, sfx_len); (*fname)[new_len] = NUL; } theend: vim_free(pbuf_unused); vim_free(save_fname); return retval; } /* * Get a pathname for a partial path. * Returns OK for success, FAIL for failure. */ static int shortpath_for_partial( char_u **fnamep, char_u **bufp, int *fnamelen) { int sepcount, len, tflen; char_u *p; char_u *pbuf, *tfname; int hasTilde; // Count up the path separators from the RHS.. so we know which part // of the path to return. sepcount = 0; for (p = *fnamep; p < *fnamep + *fnamelen; MB_PTR_ADV(p)) if (vim_ispathsep(*p)) ++sepcount; // Need full path first (use expand_env() to remove a "~/") hasTilde = (**fnamep == '~'); if (hasTilde) pbuf = tfname = expand_env_save(*fnamep); else pbuf = tfname = FullName_save(*fnamep, FALSE); len = tflen = (int)STRLEN(tfname); if (get_short_pathname(&tfname, &pbuf, &len) == FAIL) return FAIL; if (len == 0) { // Don't have a valid filename, so shorten the rest of the // path if we can. This CAN give us invalid 8.3 filenames, but // there's not a lot of point in guessing what it might be. len = tflen; if (shortpath_for_invalid_fname(&tfname, &pbuf, &len) == FAIL) return FAIL; } // Count the paths backward to find the beginning of the desired string. for (p = tfname + len - 1; p >= tfname; --p) { if (has_mbyte) p -= mb_head_off(tfname, p); if (vim_ispathsep(*p)) { if (sepcount == 0 || (hasTilde && sepcount == 1)) break; else sepcount --; } } if (hasTilde) { --p; if (p >= tfname) *p = '~'; else return FAIL; } else ++p; // Copy in the string - p indexes into tfname - allocated at pbuf vim_free(*bufp); *fnamelen = (int)STRLEN(p); *bufp = pbuf; *fnamep = p; return OK; } #endif // MSWIN /* * Adjust a filename, according to a string of modifiers. * *fnamep must be NUL terminated when called. When returning, the length is * determined by *fnamelen. * Returns VALID_ flags or -1 for failure. * When there is an error, *fnamep is set to NULL. */ int modify_fname( char_u *src, // string with modifiers int tilde_file, // "~" is a file name, not $HOME int *usedlen, // characters after src that are used char_u **fnamep, // file name so far char_u **bufp, // buffer for allocated file name or NULL int *fnamelen) // length of fnamep { int valid = 0; char_u *tail; char_u *s, *p, *pbuf; char_u dirname[MAXPATHL]; int c; int has_fullname = 0; int has_homerelative = 0; #ifdef MSWIN char_u *fname_start = *fnamep; int has_shortname = 0; #endif repeat: // ":p" - full path/file_name if (src[*usedlen] == ':' && src[*usedlen + 1] == 'p') { has_fullname = 1; valid |= VALID_PATH; *usedlen += 2; // Expand "~/path" for all systems and "~user/path" for Unix and VMS if ((*fnamep)[0] == '~' #if !defined(UNIX) && !(defined(VMS) && defined(USER_HOME)) && ((*fnamep)[1] == '/' # ifdef BACKSLASH_IN_FILENAME || (*fnamep)[1] == '\\' # endif || (*fnamep)[1] == NUL) #endif && !(tilde_file && (*fnamep)[1] == NUL) ) { *fnamep = expand_env_save(*fnamep); vim_free(*bufp); // free any allocated file name *bufp = *fnamep; if (*fnamep == NULL) return -1; } // When "/." or "/.." is used: force expansion to get rid of it. for (p = *fnamep; *p != NUL; MB_PTR_ADV(p)) { if (vim_ispathsep(*p) && p[1] == '.' && (p[2] == NUL || vim_ispathsep(p[2]) || (p[2] == '.' && (p[3] == NUL || vim_ispathsep(p[3]))))) break; } // FullName_save() is slow, don't use it when not needed. if (*p != NUL || !vim_isAbsName(*fnamep)) { *fnamep = FullName_save(*fnamep, *p != NUL); vim_free(*bufp); // free any allocated file name *bufp = *fnamep; if (*fnamep == NULL) return -1; } #ifdef MSWIN # if _WIN32_WINNT >= 0x0500 if (vim_strchr(*fnamep, '~') != NULL) { // Expand 8.3 filename to full path. Needed to make sure the same // file does not have two different names. // Note: problem does not occur if _WIN32_WINNT < 0x0500. WCHAR *wfname = enc_to_utf16(*fnamep, NULL); WCHAR buf[_MAX_PATH]; if (wfname != NULL) { if (GetLongPathNameW(wfname, buf, _MAX_PATH)) { char_u *p = utf16_to_enc(buf, NULL); if (p != NULL) { vim_free(*bufp); // free any allocated file name *bufp = *fnamep = p; } } vim_free(wfname); } } # endif #endif // Append a path separator to a directory. if (mch_isdir(*fnamep)) { // Make room for one or two extra characters. *fnamep = vim_strnsave(*fnamep, STRLEN(*fnamep) + 2); vim_free(*bufp); // free any allocated file name *bufp = *fnamep; if (*fnamep == NULL) return -1; add_pathsep(*fnamep); } } // ":." - path relative to the current directory // ":~" - path relative to the home directory // ":8" - shortname path - postponed till after while (src[*usedlen] == ':' && ((c = src[*usedlen + 1]) == '.' || c == '~' || c == '8')) { *usedlen += 2; if (c == '8') { #ifdef MSWIN has_shortname = 1; // Postpone this. #endif continue; } pbuf = NULL; // Need full path first (use expand_env() to remove a "~/") if (!has_fullname && !has_homerelative) { if ((c == '.' || c == '~') && **fnamep == '~') p = pbuf = expand_env_save(*fnamep); else p = pbuf = FullName_save(*fnamep, FALSE); } else p = *fnamep; has_fullname = 0; if (p != NULL) { if (c == '.') { size_t namelen; mch_dirname(dirname, MAXPATHL); if (has_homerelative) { s = vim_strsave(dirname); if (s != NULL) { home_replace(NULL, s, dirname, MAXPATHL, TRUE); vim_free(s); } } namelen = STRLEN(dirname); // Do not call shorten_fname() here since it removes the prefix // even though the path does not have a prefix. if (fnamencmp(p, dirname, namelen) == 0) { p += namelen; if (vim_ispathsep(*p)) { while (*p && vim_ispathsep(*p)) ++p; *fnamep = p; if (pbuf != NULL) { // free any allocated file name vim_free(*bufp); *bufp = pbuf; pbuf = NULL; } } } } else { home_replace(NULL, p, dirname, MAXPATHL, TRUE); // Only replace it when it starts with '~' if (*dirname == '~') { s = vim_strsave(dirname); if (s != NULL) { *fnamep = s; vim_free(*bufp); *bufp = s; has_homerelative = TRUE; } } } vim_free(pbuf); } } tail = gettail(*fnamep); *fnamelen = (int)STRLEN(*fnamep); // ":h" - head, remove "/file_name", can be repeated // Don't remove the first "/" or "c:\" while (src[*usedlen] == ':' && src[*usedlen + 1] == 'h') { valid |= VALID_HEAD; *usedlen += 2; s = get_past_head(*fnamep); while (tail > s && after_pathsep(s, tail)) MB_PTR_BACK(*fnamep, tail); *fnamelen = (int)(tail - *fnamep); #ifdef VMS if (*fnamelen > 0) *fnamelen += 1; // the path separator is part of the path #endif if (*fnamelen == 0) { // Result is empty. Turn it into "." to make ":cd %:h" work. p = vim_strsave((char_u *)"."); if (p == NULL) return -1; vim_free(*bufp); *bufp = *fnamep = tail = p; *fnamelen = 1; } else { while (tail > s && !after_pathsep(s, tail)) MB_PTR_BACK(*fnamep, tail); } } // ":8" - shortname if (src[*usedlen] == ':' && src[*usedlen + 1] == '8') { *usedlen += 2; #ifdef MSWIN has_shortname = 1; #endif } #ifdef MSWIN /* * Handle ":8" after we have done 'heads' and before we do 'tails'. */ if (has_shortname) { // Copy the string if it is shortened by :h and when it wasn't copied // yet, because we are going to change it in place. Avoids changing // the buffer name for "%:8". if (*fnamelen < (int)STRLEN(*fnamep) || *fnamep == fname_start) { p = vim_strnsave(*fnamep, *fnamelen); if (p == NULL) return -1; vim_free(*bufp); *bufp = *fnamep = p; } // Split into two implementations - makes it easier. First is where // there isn't a full name already, second is where there is. if (!has_fullname && !vim_isAbsName(*fnamep)) { if (shortpath_for_partial(fnamep, bufp, fnamelen) == FAIL) return -1; } else { int l = *fnamelen; // Simple case, already have the full-name. // Nearly always shorter, so try first time. if (get_short_pathname(fnamep, bufp, &l) == FAIL) return -1; if (l == 0) { // Couldn't find the filename, search the paths. l = *fnamelen; if (shortpath_for_invalid_fname(fnamep, bufp, &l) == FAIL) return -1; } *fnamelen = l; } } #endif // MSWIN // ":t" - tail, just the basename if (src[*usedlen] == ':' && src[*usedlen + 1] == 't') { *usedlen += 2; *fnamelen -= (int)(tail - *fnamep); *fnamep = tail; } // ":e" - extension, can be repeated // ":r" - root, without extension, can be repeated while (src[*usedlen] == ':' && (src[*usedlen + 1] == 'e' || src[*usedlen + 1] == 'r')) { // find a '.' in the tail: // - for second :e: before the current fname // - otherwise: The last '.' if (src[*usedlen + 1] == 'e' && *fnamep > tail) s = *fnamep - 2; else s = *fnamep + *fnamelen - 1; for ( ; s > tail; --s) if (s[0] == '.') break; if (src[*usedlen + 1] == 'e') // :e { if (s > tail) { *fnamelen += (int)(*fnamep - (s + 1)); *fnamep = s + 1; #ifdef VMS // cut version from the extension s = *fnamep + *fnamelen - 1; for ( ; s > *fnamep; --s) if (s[0] == ';') break; if (s > *fnamep) *fnamelen = s - *fnamep; #endif } else if (*fnamep <= tail) *fnamelen = 0; } else // :r { char_u *limit = *fnamep; if (limit < tail) limit = tail; if (s > limit) // remove one extension *fnamelen = (int)(s - *fnamep); } *usedlen += 2; } // ":s?pat?foo?" - substitute // ":gs?pat?foo?" - global substitute if (src[*usedlen] == ':' && (src[*usedlen + 1] == 's' || (src[*usedlen + 1] == 'g' && src[*usedlen + 2] == 's'))) { char_u *str; char_u *pat; char_u *sub; int sep; char_u *flags; int didit = FALSE; flags = (char_u *)""; s = src + *usedlen + 2; if (src[*usedlen + 1] == 'g') { flags = (char_u *)"g"; ++s; } sep = *s++; if (sep) { // find end of pattern p = vim_strchr(s, sep); if (p != NULL) { pat = vim_strnsave(s, p - s); if (pat != NULL) { s = p + 1; // find end of substitution p = vim_strchr(s, sep); if (p != NULL) { sub = vim_strnsave(s, p - s); str = vim_strnsave(*fnamep, *fnamelen); if (sub != NULL && str != NULL) { *usedlen = (int)(p + 1 - src); s = do_string_sub(str, pat, sub, NULL, flags); if (s != NULL) { *fnamep = s; *fnamelen = (int)STRLEN(s); vim_free(*bufp); *bufp = s; didit = TRUE; } } vim_free(sub); vim_free(str); } vim_free(pat); } } // after using ":s", repeat all the modifiers if (didit) goto repeat; } } if (src[*usedlen] == ':' && src[*usedlen + 1] == 'S') { // vim_strsave_shellescape() needs a NUL terminated string. c = (*fnamep)[*fnamelen]; if (c != NUL) (*fnamep)[*fnamelen] = NUL; p = vim_strsave_shellescape(*fnamep, FALSE, FALSE); if (c != NUL) (*fnamep)[*fnamelen] = c; if (p == NULL) return -1; vim_free(*bufp); *bufp = *fnamep = p; *fnamelen = (int)STRLEN(p); *usedlen += 2; } return valid; } /* * Shorten the path of a file from "~/foo/../.bar/fname" to "~/f/../.b/fname" * "trim_len" specifies how many characters to keep for each directory. * Must be 1 or more. * It's done in-place. */ static void shorten_dir_len(char_u *str, int trim_len) { char_u *tail, *s, *d; int skip = FALSE; int dirchunk_len = 0; tail = gettail(str); d = str; for (s = str; ; ++s) { if (s >= tail) // copy the whole tail { *d++ = *s; if (*s == NUL) break; } else if (vim_ispathsep(*s)) // copy '/' and next char { *d++ = *s; skip = FALSE; dirchunk_len = 0; } else if (!skip) { *d++ = *s; // copy next char if (*s != '~' && *s != '.') // and leading "~" and "." { ++dirchunk_len; // only count word chars for the size // keep copying chars until we have our preferred length (or // until the above if/else branches move us along) if (dirchunk_len >= trim_len) skip = TRUE; } if (has_mbyte) { int l = mb_ptr2len(s); while (--l > 0) *d++ = *++s; } } } } /* * Shorten the path of a file from "~/foo/../.bar/fname" to "~/f/../.b/fname" * It's done in-place. */ void shorten_dir(char_u *str) { shorten_dir_len(str, 1); } #if defined(FEAT_EVAL) || defined(PROTO) /* * "chdir(dir)" function */ void f_chdir(typval_T *argvars, typval_T *rettv) { char_u *cwd; cdscope_T scope = CDSCOPE_GLOBAL; rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; if (argvars[0].v_type != VAR_STRING) // Returning an empty string means it failed. // No error message, for historic reasons. return; // Return the current directory cwd = alloc(MAXPATHL); if (cwd != NULL) { if (mch_dirname(cwd, MAXPATHL) != FAIL) { #ifdef BACKSLASH_IN_FILENAME slash_adjust(cwd); #endif rettv->vval.v_string = vim_strsave(cwd); } vim_free(cwd); } if (curwin->w_localdir != NULL) scope = CDSCOPE_WINDOW; else if (curtab->tp_localdir != NULL) scope = CDSCOPE_TABPAGE; if (!changedir_func(argvars[0].vval.v_string, TRUE, scope)) // Directory change failed VIM_CLEAR(rettv->vval.v_string); } /* * "delete()" function */ void f_delete(typval_T *argvars, typval_T *rettv) { char_u nbuf[NUMBUFLEN]; char_u *name; char_u *flags; rettv->vval.v_number = -1; if (check_restricted() || check_secure()) return; name = tv_get_string(&argvars[0]); if (name == NULL || *name == NUL) { emsg(_(e_invarg)); return; } if (argvars[1].v_type != VAR_UNKNOWN) flags = tv_get_string_buf(&argvars[1], nbuf); else flags = (char_u *)""; if (*flags == NUL) // delete a file rettv->vval.v_number = mch_remove(name) == 0 ? 0 : -1; else if (STRCMP(flags, "d") == 0) // delete an empty directory rettv->vval.v_number = mch_rmdir(name) == 0 ? 0 : -1; else if (STRCMP(flags, "rf") == 0) // delete a directory recursively rettv->vval.v_number = delete_recursive(name); else semsg(_(e_invexpr2), flags); } /* * "executable()" function */ void f_executable(typval_T *argvars, typval_T *rettv) { if (in_vim9script() && check_for_string(&argvars[0]) == FAIL) return; // Check in $PATH and also check directly if there is a directory name. rettv->vval.v_number = mch_can_exe(tv_get_string(&argvars[0]), NULL, TRUE); } /* * "exepath()" function */ void f_exepath(typval_T *argvars, typval_T *rettv) { char_u *p = NULL; if (in_vim9script() && check_for_nonempty_string(&argvars[0]) == FAIL) return; (void)mch_can_exe(tv_get_string(&argvars[0]), &p, TRUE); rettv->v_type = VAR_STRING; rettv->vval.v_string = p; } /* * "filereadable()" function */ void f_filereadable(typval_T *argvars, typval_T *rettv) { int fd; char_u *p; int n; if (in_vim9script() && check_for_string(&argvars[0]) == FAIL) return; #ifndef O_NONBLOCK # define O_NONBLOCK 0 #endif p = tv_get_string(&argvars[0]); if (*p && !mch_isdir(p) && (fd = mch_open((char *)p, O_RDONLY | O_NONBLOCK, 0)) >= 0) { n = TRUE; close(fd); } else n = FALSE; rettv->vval.v_number = n; } /* * Return 0 for not writable, 1 for writable file, 2 for a dir which we have * rights to write into. */ void f_filewritable(typval_T *argvars, typval_T *rettv) { if (in_vim9script() && check_for_string(&argvars[0]) == FAIL) return; rettv->vval.v_number = filewritable(tv_get_string(&argvars[0])); } static void findfilendir( typval_T *argvars UNUSED, typval_T *rettv, int find_what UNUSED) { #ifdef FEAT_SEARCHPATH char_u *fname; char_u *fresult = NULL; char_u *path = *curbuf->b_p_path == NUL ? p_path : curbuf->b_p_path; char_u *p; char_u pathbuf[NUMBUFLEN]; int count = 1; int first = TRUE; int error = FALSE; #endif rettv->vval.v_string = NULL; rettv->v_type = VAR_STRING; if (in_vim9script() && check_for_nonempty_string(&argvars[0]) == FAIL) return; #ifdef FEAT_SEARCHPATH fname = tv_get_string(&argvars[0]); if (argvars[1].v_type != VAR_UNKNOWN) { p = tv_get_string_buf_chk(&argvars[1], pathbuf); if (p == NULL) error = TRUE; else { if (*p != NUL) path = p; if (argvars[2].v_type != VAR_UNKNOWN) count = (int)tv_get_number_chk(&argvars[2], &error); } } if (count < 0 && rettv_list_alloc(rettv) == FAIL) error = TRUE; if (*fname != NUL && !error) { do { if (rettv->v_type == VAR_STRING || rettv->v_type == VAR_LIST) vim_free(fresult); fresult = find_file_in_path_option(first ? fname : NULL, first ? (int)STRLEN(fname) : 0, 0, first, path, find_what, curbuf->b_ffname, find_what == FINDFILE_DIR ? (char_u *)"" : curbuf->b_p_sua); first = FALSE; if (fresult != NULL && rettv->v_type == VAR_LIST) list_append_string(rettv->vval.v_list, fresult, -1); } while ((rettv->v_type == VAR_LIST || --count > 0) && fresult != NULL); } if (rettv->v_type == VAR_STRING) rettv->vval.v_string = fresult; #endif } /* * "finddir({fname}[, {path}[, {count}]])" function */ void f_finddir(typval_T *argvars, typval_T *rettv) { findfilendir(argvars, rettv, FINDFILE_DIR); } /* * "findfile({fname}[, {path}[, {count}]])" function */ void f_findfile(typval_T *argvars, typval_T *rettv) { findfilendir(argvars, rettv, FINDFILE_FILE); } /* * "fnamemodify({fname}, {mods})" function */ void f_fnamemodify(typval_T *argvars, typval_T *rettv) { char_u *fname; char_u *mods; int usedlen = 0; int len = 0; char_u *fbuf = NULL; char_u buf[NUMBUFLEN]; if (in_vim9script() && (check_for_string(&argvars[0]) == FAIL || check_for_string(&argvars[1]) == FAIL)) return; fname = tv_get_string_chk(&argvars[0]); mods = tv_get_string_buf_chk(&argvars[1], buf); if (mods == NULL || fname == NULL) fname = NULL; else { len = (int)STRLEN(fname); if (mods != NULL && *mods != NUL) (void)modify_fname(mods, FALSE, &usedlen, &fname, &fbuf, &len); } rettv->v_type = VAR_STRING; if (fname == NULL) rettv->vval.v_string = NULL; else rettv->vval.v_string = vim_strnsave(fname, len); vim_free(fbuf); } /* * "getcwd()" function * * Return the current working directory of a window in a tab page. * First optional argument 'winnr' is the window number or -1 and the second * optional argument 'tabnr' is the tab page number. * * If no arguments are supplied, then return the directory of the current * window. * If only 'winnr' is specified and is not -1 or 0 then return the directory of * the specified window. * If 'winnr' is 0 then return the directory of the current window. * If both 'winnr and 'tabnr' are specified and 'winnr' is -1 then return the * directory of the specified tab page. Otherwise return the directory of the * specified window in the specified tab page. * If the window or the tab page doesn't exist then return NULL. */ void f_getcwd(typval_T *argvars, typval_T *rettv) { win_T *wp = NULL; tabpage_T *tp = NULL; char_u *cwd; int global = FALSE; rettv->v_type = VAR_STRING; rettv->vval.v_string = NULL; if (argvars[0].v_type == VAR_NUMBER && argvars[0].vval.v_number == -1 && argvars[1].v_type == VAR_UNKNOWN) global = TRUE; else wp = find_tabwin(&argvars[0], &argvars[1], &tp); if (wp != NULL && wp->w_localdir != NULL) rettv->vval.v_string = vim_strsave(wp->w_localdir); else if (tp != NULL && tp->tp_localdir != NULL) rettv->vval.v_string = vim_strsave(tp->tp_localdir); else if (wp != NULL || tp != NULL || global) { if (globaldir != NULL) rettv->vval.v_string = vim_strsave(globaldir); else { cwd = alloc(MAXPATHL); if (cwd != NULL) { if (mch_dirname(cwd, MAXPATHL) != FAIL) rettv->vval.v_string = vim_strsave(cwd); vim_free(cwd); } } } #ifdef BACKSLASH_IN_FILENAME if (rettv->vval.v_string != NULL) slash_adjust(rettv->vval.v_string); #endif } /* * Convert "st" to file permission string. */ char_u * getfpermst(stat_T *st, char_u *perm) { char_u flags[] = "rwx"; int i; for (i = 0; i < 9; i++) { if (st->st_mode & (1 << (8 - i))) perm[i] = flags[i % 3]; else perm[i] = '-'; } return perm; } /* * "getfperm({fname})" function */ void f_getfperm(typval_T *argvars, typval_T *rettv) { char_u *fname; stat_T st; char_u *perm = NULL; char_u permbuf[] = "---------"; if (in_vim9script() && check_for_string(&argvars[0]) == FAIL) return; fname = tv_get_string(&argvars[0]); rettv->v_type = VAR_STRING; if (mch_stat((char *)fname, &st) >= 0) perm = vim_strsave(getfpermst(&st, permbuf)); rettv->vval.v_string = perm; } /* * "getfsize({fname})" function */ void f_getfsize(typval_T *argvars, typval_T *rettv) { char_u *fname; stat_T st; if (in_vim9script() && check_for_string(&argvars[0]) == FAIL) return; fname = tv_get_string(&argvars[0]); if (mch_stat((char *)fname, &st) >= 0) { if (mch_isdir(fname)) rettv->vval.v_number = 0; else { rettv->vval.v_number = (varnumber_T)st.st_size; // non-perfect check for overflow if ((off_T)rettv->vval.v_number != (off_T)st.st_size) rettv->vval.v_number = -2; } } else rettv->vval.v_number = -1; } /* * "getftime({fname})" function */ void f_getftime(typval_T *argvars, typval_T *rettv) { char_u *fname; stat_T st; if (in_vim9script() && check_for_string(&argvars[0]) == FAIL) return; fname = tv_get_string(&argvars[0]); if (mch_stat((char *)fname, &st) >= 0) rettv->vval.v_number = (varnumber_T)st.st_mtime; else rettv->vval.v_number = -1; } /* * Convert "st" to file type string. */ char_u * getftypest(stat_T *st) { char *t; if (S_ISREG(st->st_mode)) t = "file"; else if (S_ISDIR(st->st_mode)) t = "dir"; else if (S_ISLNK(st->st_mode)) t = "link"; else if (S_ISBLK(st->st_mode)) t = "bdev"; else if (S_ISCHR(st->st_mode)) t = "cdev"; else if (S_ISFIFO(st->st_mode)) t = "fifo"; else if (S_ISSOCK(st->st_mode)) t = "socket"; else t = "other"; return (char_u*)t; } /* * "getftype({fname})" function */ void f_getftype(typval_T *argvars, typval_T *rettv) { char_u *fname; stat_T st; char_u *type = NULL; if (in_vim9script() && check_for_string(&argvars[0]) == FAIL) return; fname = tv_get_string(&argvars[0]); rettv->v_type = VAR_STRING; if (mch_lstat((char *)fname, &st) >= 0) type = vim_strsave(getftypest(&st)); rettv->vval.v_string = type; } /* * "glob()" function */ void f_glob(typval_T *argvars, typval_T *rettv) { int options = WILD_SILENT|WILD_USE_NL; expand_T xpc; int error = FALSE; // When the optional second argument is non-zero, don't remove matches // for 'wildignore' and don't put matches for 'suffixes' at the end. rettv->v_type = VAR_STRING; if (argvars[1].v_type != VAR_UNKNOWN) { if (tv_get_bool_chk(&argvars[1], &error)) options |= WILD_KEEP_ALL; if (argvars[2].v_type != VAR_UNKNOWN) { if (tv_get_bool_chk(&argvars[2], &error)) rettv_list_set(rettv, NULL); if (argvars[3].v_type != VAR_UNKNOWN && tv_get_bool_chk(&argvars[3], &error)) options |= WILD_ALLLINKS; } } if (!error) { ExpandInit(&xpc); xpc.xp_context = EXPAND_FILES; if (p_wic) options += WILD_ICASE; if (rettv->v_type == VAR_STRING) rettv->vval.v_string = ExpandOne(&xpc, tv_get_string(&argvars[0]), NULL, options, WILD_ALL); else if (rettv_list_alloc(rettv) != FAIL) { int i; ExpandOne(&xpc, tv_get_string(&argvars[0]), NULL, options, WILD_ALL_KEEP); for (i = 0; i < xpc.xp_numfiles; i++) list_append_string(rettv->vval.v_list, xpc.xp_files[i], -1); ExpandCleanup(&xpc); } } else rettv->vval.v_string = NULL; } /* * "glob2regpat()" function */ void f_glob2regpat(typval_T *argvars, typval_T *rettv) { char_u *pat = tv_get_string_chk(&argvars[0]); rettv->v_type = VAR_STRING; rettv->vval.v_string = (pat == NULL) ? NULL : file_pat_to_reg_pat(pat, NULL, NULL, FALSE); } /* * "globpath()" function */ void f_globpath(typval_T *argvars, typval_T *rettv) { int flags = WILD_IGNORE_COMPLETESLASH; char_u buf1[NUMBUFLEN]; char_u *file = tv_get_string_buf_chk(&argvars[1], buf1); int error = FALSE; garray_T ga; int i; // When the optional second argument is non-zero, don't remove matches // for 'wildignore' and don't put matches for 'suffixes' at the end. rettv->v_type = VAR_STRING; if (argvars[2].v_type != VAR_UNKNOWN) { if (tv_get_bool_chk(&argvars[2], &error)) flags |= WILD_KEEP_ALL; if (argvars[3].v_type != VAR_UNKNOWN) { if (tv_get_bool_chk(&argvars[3], &error)) rettv_list_set(rettv, NULL); if (argvars[4].v_type != VAR_UNKNOWN && tv_get_bool_chk(&argvars[4], &error)) flags |= WILD_ALLLINKS; } } if (file != NULL && !error) { ga_init2(&ga, (int)sizeof(char_u *), 10); globpath(tv_get_string(&argvars[0]), file, &ga, flags); if (rettv->v_type == VAR_STRING) rettv->vval.v_string = ga_concat_strings(&ga, "\n"); else if (rettv_list_alloc(rettv) != FAIL) for (i = 0; i < ga.ga_len; ++i) list_append_string(rettv->vval.v_list, ((char_u **)(ga.ga_data))[i], -1); ga_clear_strings(&ga); } else rettv->vval.v_string = NULL; } /* * "isdirectory()" function */ void f_isdirectory(typval_T *argvars, typval_T *rettv) { rettv->vval.v_number = mch_isdir(tv_get_string(&argvars[0])); } /* * Create the directory in which "dir" is located, and higher levels when * needed. * Return OK or FAIL. */ static int mkdir_recurse(char_u *dir, int prot) { char_u *p; char_u *updir; int r = FAIL; // Get end of directory name in "dir". // We're done when it's "/" or "c:/". p = gettail_sep(dir); if (p <= get_past_head(dir)) return OK; // If the directory exists we're done. Otherwise: create it. updir = vim_strnsave(dir, p - dir); if (updir == NULL) return FAIL; if (mch_isdir(updir)) r = OK; else if (mkdir_recurse(updir, prot) == OK) r = vim_mkdir_emsg(updir, prot); vim_free(updir); return r; } /* * "mkdir()" function */ void f_mkdir(typval_T *argvars, typval_T *rettv) { char_u *dir; char_u buf[NUMBUFLEN]; int prot = 0755; rettv->vval.v_number = FAIL; if (check_restricted() || check_secure()) return; dir = tv_get_string_buf(&argvars[0], buf); if (*dir == NUL) return; if (*gettail(dir) == NUL) // remove trailing slashes *gettail_sep(dir) = NUL; if (argvars[1].v_type != VAR_UNKNOWN) { if (argvars[2].v_type != VAR_UNKNOWN) { prot = (int)tv_get_number_chk(&argvars[2], NULL); if (prot == -1) return; } if (STRCMP(tv_get_string(&argvars[1]), "p") == 0) { if (mch_isdir(dir)) { // With the "p" flag it's OK if the dir already exists. rettv->vval.v_number = OK; return; } mkdir_recurse(dir, prot); } } rettv->vval.v_number = vim_mkdir_emsg(dir, prot); } /* * "pathshorten()" function */ void f_pathshorten(typval_T *argvars, typval_T *rettv) { char_u *p; int trim_len = 1; if (argvars[1].v_type != VAR_UNKNOWN) { trim_len = (int)tv_get_number(&argvars[1]); if (trim_len < 1) trim_len = 1; } rettv->v_type = VAR_STRING; p = tv_get_string_chk(&argvars[0]); if (p == NULL) rettv->vval.v_string = NULL; else { p = vim_strsave(p); rettv->vval.v_string = p; if (p != NULL) shorten_dir_len(p, trim_len); } } /* * Common code for readdir_checkitem() and readdirex_checkitem(). * Either "name" or "dict" is NULL. */ static int checkitem_common(void *context, char_u *name, dict_T *dict) { typval_T *expr = (typval_T *)context; typval_T save_val; typval_T rettv; typval_T argv[2]; int retval = 0; int error = FALSE; prepare_vimvar(VV_VAL, &save_val); if (name != NULL) { set_vim_var_string(VV_VAL, name, -1); argv[0].v_type = VAR_STRING; argv[0].vval.v_string = name; } else { set_vim_var_dict(VV_VAL, dict); argv[0].v_type = VAR_DICT; argv[0].vval.v_dict = dict; } if (eval_expr_typval(expr, argv, 1, &rettv) == FAIL) goto theend; // We want to use -1, but also true/false should be allowed. if (rettv.v_type == VAR_SPECIAL || rettv.v_type == VAR_BOOL) { rettv.v_type = VAR_NUMBER; rettv.vval.v_number = rettv.vval.v_number == VVAL_TRUE; } retval = tv_get_number_chk(&rettv, &error); if (error) retval = -1; clear_tv(&rettv); theend: if (name != NULL) set_vim_var_string(VV_VAL, NULL, 0); else set_vim_var_dict(VV_VAL, NULL); restore_vimvar(VV_VAL, &save_val); return retval; } /* * Evaluate "expr" (= "context") for readdir(). */ static int readdir_checkitem(void *context, void *item) { char_u *name = (char_u *)item; return checkitem_common(context, name, NULL); } static int readdirex_dict_arg(typval_T *tv, int *cmp) { char_u *compare; if (tv->v_type != VAR_DICT) { emsg(_(e_dictreq)); return FAIL; } if (dict_find(tv->vval.v_dict, (char_u *)"sort", -1) != NULL) compare = dict_get_string(tv->vval.v_dict, (char_u *)"sort", FALSE); else { semsg(_(e_no_dict_key), "sort"); return FAIL; } if (STRCMP(compare, (char_u *) "none") == 0) *cmp = READDIR_SORT_NONE; else if (STRCMP(compare, (char_u *) "case") == 0) *cmp = READDIR_SORT_BYTE; else if (STRCMP(compare, (char_u *) "icase") == 0) *cmp = READDIR_SORT_IC; else if (STRCMP(compare, (char_u *) "collate") == 0) *cmp = READDIR_SORT_COLLATE; return OK; } /* * "readdir()" function */ void f_readdir(typval_T *argvars, typval_T *rettv) { typval_T *expr; int ret; char_u *path; char_u *p; garray_T ga; int i; int sort = READDIR_SORT_BYTE; if (rettv_list_alloc(rettv) == FAIL) return; path = tv_get_string(&argvars[0]); expr = &argvars[1]; if (argvars[1].v_type != VAR_UNKNOWN && argvars[2].v_type != VAR_UNKNOWN && readdirex_dict_arg(&argvars[2], &sort) == FAIL) return; ret = readdir_core(&ga, path, FALSE, (void *)expr, (expr->v_type == VAR_UNKNOWN) ? NULL : readdir_checkitem, sort); if (ret == OK) { for (i = 0; i < ga.ga_len; i++) { p = ((char_u **)ga.ga_data)[i]; list_append_string(rettv->vval.v_list, p, -1); } } ga_clear_strings(&ga); } /* * Evaluate "expr" (= "context") for readdirex(). */ static int readdirex_checkitem(void *context, void *item) { dict_T *dict = (dict_T*)item; return checkitem_common(context, NULL, dict); } /* * "readdirex()" function */ void f_readdirex(typval_T *argvars, typval_T *rettv) { typval_T *expr; int ret; char_u *path; garray_T ga; int i; int sort = READDIR_SORT_BYTE; if (rettv_list_alloc(rettv) == FAIL) return; path = tv_get_string(&argvars[0]); expr = &argvars[1]; if (argvars[1].v_type != VAR_UNKNOWN && argvars[2].v_type != VAR_UNKNOWN && readdirex_dict_arg(&argvars[2], &sort) == FAIL) return; ret = readdir_core(&ga, path, TRUE, (void *)expr, (expr->v_type == VAR_UNKNOWN) ? NULL : readdirex_checkitem, sort); if (ret == OK) { for (i = 0; i < ga.ga_len; i++) { dict_T *dict = ((dict_T**)ga.ga_data)[i]; list_append_dict(rettv->vval.v_list, dict); dict_unref(dict); } } ga_clear(&ga); } /* * "readfile()" function */ static void read_file_or_blob(typval_T *argvars, typval_T *rettv, int always_blob) { int binary = FALSE; int blob = always_blob; int failed = FALSE; char_u *fname; FILE *fd; char_u buf[(IOSIZE/256)*256]; // rounded to avoid odd + 1 int io_size = sizeof(buf); int readlen; // size of last fread() char_u *prev = NULL; // previously read bytes, if any long prevlen = 0; // length of data in prev long prevsize = 0; // size of prev buffer long maxline = MAXLNUM; long cnt = 0; char_u *p; // position in buf char_u *start; // start of current line if (argvars[1].v_type != VAR_UNKNOWN) { if (STRCMP(tv_get_string(&argvars[1]), "b") == 0) binary = TRUE; if (STRCMP(tv_get_string(&argvars[1]), "B") == 0) blob = TRUE; if (argvars[2].v_type != VAR_UNKNOWN) maxline = (long)tv_get_number(&argvars[2]); } if ((blob ? rettv_blob_alloc(rettv) : rettv_list_alloc(rettv)) == FAIL) return; // Always open the file in binary mode, library functions have a mind of // their own about CR-LF conversion. fname = tv_get_string(&argvars[0]); if (mch_isdir(fname)) { semsg(_(e_isadir2), fname); return; } if (*fname == NUL || (fd = mch_fopen((char *)fname, READBIN)) == NULL) { semsg(_(e_notopen), *fname == NUL ? (char_u *)_("<empty>") : fname); return; } if (blob) { if (read_blob(fd, rettv->vval.v_blob) == FAIL) { semsg(_(e_notread), fname); // An empty blob is returned on error. blob_free(rettv->vval.v_blob); rettv->vval.v_blob = NULL; } fclose(fd); return; } while (cnt < maxline || maxline < 0) { readlen = (int)fread(buf, 1, io_size, fd); // This for loop processes what was read, but is also entered at end // of file so that either: // - an incomplete line gets written // - a "binary" file gets an empty line at the end if it ends in a // newline. for (p = buf, start = buf; p < buf + readlen || (readlen <= 0 && (prevlen > 0 || binary)); ++p) { if (*p == '\n' || readlen <= 0) { listitem_T *li; char_u *s = NULL; long_u len = p - start; // Finished a line. Remove CRs before NL. if (readlen > 0 && !binary) { while (len > 0 && start[len - 1] == '\r') --len; // removal may cross back to the "prev" string if (len == 0) while (prevlen > 0 && prev[prevlen - 1] == '\r') --prevlen; } if (prevlen == 0) s = vim_strnsave(start, len); else { // Change "prev" buffer to be the right size. This way // the bytes are only copied once, and very long lines are // allocated only once. if ((s = vim_realloc(prev, prevlen + len + 1)) != NULL) { mch_memmove(s + prevlen, start, len); s[prevlen + len] = NUL; prev = NULL; // the list will own the string prevlen = prevsize = 0; } } if (s == NULL) { do_outofmem_msg((long_u) prevlen + len + 1); failed = TRUE; break; } if ((li = listitem_alloc()) == NULL) { vim_free(s); failed = TRUE; break; } li->li_tv.v_type = VAR_STRING; li->li_tv.v_lock = 0; li->li_tv.vval.v_string = s; list_append(rettv->vval.v_list, li); start = p + 1; // step over newline if ((++cnt >= maxline && maxline >= 0) || readlen <= 0) break; } else if (*p == NUL) *p = '\n'; // Check for utf8 "bom"; U+FEFF is encoded as EF BB BF. Do this // when finding the BF and check the previous two bytes. else if (*p == 0xbf && enc_utf8 && !binary) { // Find the two bytes before the 0xbf. If p is at buf, or buf // + 1, these may be in the "prev" string. char_u back1 = p >= buf + 1 ? p[-1] : prevlen >= 1 ? prev[prevlen - 1] : NUL; char_u back2 = p >= buf + 2 ? p[-2] : p == buf + 1 && prevlen >= 1 ? prev[prevlen - 1] : prevlen >= 2 ? prev[prevlen - 2] : NUL; if (back2 == 0xef && back1 == 0xbb) { char_u *dest = p - 2; // Usually a BOM is at the beginning of a file, and so at // the beginning of a line; then we can just step over it. if (start == dest) start = p + 1; else { // have to shuffle buf to close gap int adjust_prevlen = 0; if (dest < buf) { // must be 1 or 2 adjust_prevlen = (int)(buf - dest); dest = buf; } if (readlen > p - buf + 1) mch_memmove(dest, p + 1, readlen - (p - buf) - 1); readlen -= 3 - adjust_prevlen; prevlen -= adjust_prevlen; p = dest - 1; } } } } // for if (failed || (cnt >= maxline && maxline >= 0) || readlen <= 0) break; if (start < p) { // There's part of a line in buf, store it in "prev". if (p - start + prevlen >= prevsize) { // need bigger "prev" buffer char_u *newprev; // A common use case is ordinary text files and "prev" gets a // fragment of a line, so the first allocation is made // small, to avoid repeatedly 'allocing' large and // 'reallocing' small. if (prevsize == 0) prevsize = (long)(p - start); else { long grow50pc = (prevsize * 3) / 2; long growmin = (long)((p - start) * 2 + prevlen); prevsize = grow50pc > growmin ? grow50pc : growmin; } newprev = vim_realloc(prev, prevsize); if (newprev == NULL) { do_outofmem_msg((long_u)prevsize); failed = TRUE; break; } prev = newprev; } // Add the line part to end of "prev". mch_memmove(prev + prevlen, start, p - start); prevlen += (long)(p - start); } } // while // For a negative line count use only the lines at the end of the file, // free the rest. if (!failed && maxline < 0) while (cnt > -maxline) { listitem_remove(rettv->vval.v_list, rettv->vval.v_list->lv_first); --cnt; } if (failed) { // an empty list is returned on error list_free(rettv->vval.v_list); rettv_list_alloc(rettv); } vim_free(prev); fclose(fd); } /* * "readblob()" function */ void f_readblob(typval_T *argvars, typval_T *rettv) { read_file_or_blob(argvars, rettv, TRUE); } /* * "readfile()" function */ void f_readfile(typval_T *argvars, typval_T *rettv) { read_file_or_blob(argvars, rettv, FALSE); } /* * "resolve()" function */ void f_resolve(typval_T *argvars, typval_T *rettv) { char_u *p; #ifdef HAVE_READLINK char_u *buf = NULL; #endif p = tv_get_string(&argvars[0]); #ifdef FEAT_SHORTCUT { char_u *v = NULL; v = mch_resolve_path(p, TRUE); if (v != NULL) rettv->vval.v_string = v; else rettv->vval.v_string = vim_strsave(p); } #else # ifdef HAVE_READLINK { char_u *cpy; int len; char_u *remain = NULL; char_u *q; int is_relative_to_current = FALSE; int has_trailing_pathsep = FALSE; int limit = 100; p = vim_strsave(p); if (p == NULL) goto fail; if (p[0] == '.' && (vim_ispathsep(p[1]) || (p[1] == '.' && (vim_ispathsep(p[2]))))) is_relative_to_current = TRUE; len = STRLEN(p); if (len > 1 && after_pathsep(p, p + len)) { has_trailing_pathsep = TRUE; p[len - 1] = NUL; // the trailing slash breaks readlink() } q = getnextcomp(p); if (*q != NUL) { // Separate the first path component in "p", and keep the // remainder (beginning with the path separator). remain = vim_strsave(q - 1); q[-1] = NUL; } buf = alloc(MAXPATHL + 1); if (buf == NULL) { vim_free(p); goto fail; } for (;;) { for (;;) { len = readlink((char *)p, (char *)buf, MAXPATHL); if (len <= 0) break; buf[len] = NUL; if (limit-- == 0) { vim_free(p); vim_free(remain); emsg(_("E655: Too many symbolic links (cycle?)")); rettv->vval.v_string = NULL; goto fail; } // Ensure that the result will have a trailing path separator // if the argument has one. if (remain == NULL && has_trailing_pathsep) add_pathsep(buf); // Separate the first path component in the link value and // concatenate the remainders. q = getnextcomp(vim_ispathsep(*buf) ? buf + 1 : buf); if (*q != NUL) { if (remain == NULL) remain = vim_strsave(q - 1); else { cpy = concat_str(q - 1, remain); if (cpy != NULL) { vim_free(remain); remain = cpy; } } q[-1] = NUL; } q = gettail(p); if (q > p && *q == NUL) { // Ignore trailing path separator. q[-1] = NUL; q = gettail(p); } if (q > p && !mch_isFullName(buf)) { // symlink is relative to directory of argument cpy = alloc(STRLEN(p) + STRLEN(buf) + 1); if (cpy != NULL) { STRCPY(cpy, p); STRCPY(gettail(cpy), buf); vim_free(p); p = cpy; } } else { vim_free(p); p = vim_strsave(buf); } } if (remain == NULL) break; // Append the first path component of "remain" to "p". q = getnextcomp(remain + 1); len = q - remain - (*q != NUL); cpy = vim_strnsave(p, STRLEN(p) + len); if (cpy != NULL) { STRNCAT(cpy, remain, len); vim_free(p); p = cpy; } // Shorten "remain". if (*q != NUL) STRMOVE(remain, q - 1); else VIM_CLEAR(remain); } // If the result is a relative path name, make it explicitly relative to // the current directory if and only if the argument had this form. if (!vim_ispathsep(*p)) { if (is_relative_to_current && *p != NUL && !(p[0] == '.' && (p[1] == NUL || vim_ispathsep(p[1]) || (p[1] == '.' && (p[2] == NUL || vim_ispathsep(p[2])))))) { // Prepend "./". cpy = concat_str((char_u *)"./", p); if (cpy != NULL) { vim_free(p); p = cpy; } } else if (!is_relative_to_current) { // Strip leading "./". q = p; while (q[0] == '.' && vim_ispathsep(q[1])) q += 2; if (q > p) STRMOVE(p, p + 2); } } // Ensure that the result will have no trailing path separator // if the argument had none. But keep "/" or "//". if (!has_trailing_pathsep) { q = p + STRLEN(p); if (after_pathsep(p, q)) *gettail_sep(p) = NUL; } rettv->vval.v_string = p; } # else rettv->vval.v_string = vim_strsave(p); # endif #endif simplify_filename(rettv->vval.v_string); #ifdef HAVE_READLINK fail: vim_free(buf); #endif rettv->v_type = VAR_STRING; } /* * "tempname()" function */ void f_tempname(typval_T *argvars UNUSED, typval_T *rettv) { static int x = 'A'; rettv->v_type = VAR_STRING; rettv->vval.v_string = vim_tempname(x, FALSE); // Advance 'x' to use A-Z and 0-9, so that there are at least 34 different // names. Skip 'I' and 'O', they are used for shell redirection. do { if (x == 'Z') x = '0'; else if (x == '9') x = 'A'; else { #ifdef EBCDIC if (x == 'I') x = 'J'; else if (x == 'R') x = 'S'; else #endif ++x; } } while (x == 'I' || x == 'O'); } /* * "writefile()" function */ void f_writefile(typval_T *argvars, typval_T *rettv) { int binary = FALSE; int append = FALSE; #ifdef HAVE_FSYNC int do_fsync = p_fs; #endif char_u *fname; FILE *fd; int ret = 0; listitem_T *li; list_T *list = NULL; blob_T *blob = NULL; rettv->vval.v_number = -1; if (check_secure()) return; if (argvars[0].v_type == VAR_LIST) { list = argvars[0].vval.v_list; if (list == NULL) return; CHECK_LIST_MATERIALIZE(list); FOR_ALL_LIST_ITEMS(list, li) if (tv_get_string_chk(&li->li_tv) == NULL) return; } else if (argvars[0].v_type == VAR_BLOB) { blob = argvars[0].vval.v_blob; if (blob == NULL) return; } else { semsg(_(e_invarg2), _("writefile() first argument must be a List or a Blob")); return; } if (argvars[2].v_type != VAR_UNKNOWN) { char_u *arg2 = tv_get_string_chk(&argvars[2]); if (arg2 == NULL) return; if (vim_strchr(arg2, 'b') != NULL) binary = TRUE; if (vim_strchr(arg2, 'a') != NULL) append = TRUE; #ifdef HAVE_FSYNC if (vim_strchr(arg2, 's') != NULL) do_fsync = TRUE; else if (vim_strchr(arg2, 'S') != NULL) do_fsync = FALSE; #endif } fname = tv_get_string_chk(&argvars[1]); if (fname == NULL) return; // Always open the file in binary mode, library functions have a mind of // their own about CR-LF conversion. if (*fname == NUL || (fd = mch_fopen((char *)fname, append ? APPENDBIN : WRITEBIN)) == NULL) { semsg(_(e_notcreate), *fname == NUL ? (char_u *)_("<empty>") : fname); ret = -1; } else if (blob) { if (write_blob(fd, blob) == FAIL) ret = -1; #ifdef HAVE_FSYNC else if (do_fsync) // Ignore the error, the user wouldn't know what to do about it. // May happen for a device. vim_ignored = vim_fsync(fileno(fd)); #endif fclose(fd); } else { if (write_list(fd, list, binary) == FAIL) ret = -1; #ifdef HAVE_FSYNC else if (do_fsync) // Ignore the error, the user wouldn't know what to do about it. // May happen for a device. vim_ignored = vim_fsync(fileno(fd)); #endif fclose(fd); } rettv->vval.v_number = ret; } #endif // FEAT_EVAL #if defined(FEAT_BROWSE) || defined(PROTO) /* * Generic browse function. Calls gui_mch_browse() when possible. * Later this may pop-up a non-GUI file selector (external command?). */ char_u * do_browse( int flags, // BROWSE_SAVE and BROWSE_DIR char_u *title, // title for the window char_u *dflt, // default file name (may include directory) char_u *ext, // extension added char_u *initdir, // initial directory, NULL for current dir or // when using path from "dflt" char_u *filter, // file name filter buf_T *buf) // buffer to read/write for { char_u *fname; static char_u *last_dir = NULL; // last used directory char_u *tofree = NULL; int save_cmod_flags = cmdmod.cmod_flags; // Must turn off browse to avoid that autocommands will get the // flag too! cmdmod.cmod_flags &= ~CMOD_BROWSE; if (title == NULL || *title == NUL) { if (flags & BROWSE_DIR) title = (char_u *)_("Select Directory dialog"); else if (flags & BROWSE_SAVE) title = (char_u *)_("Save File dialog"); else title = (char_u *)_("Open File dialog"); } // When no directory specified, use default file name, default dir, buffer // dir, last dir or current dir if ((initdir == NULL || *initdir == NUL) && dflt != NULL && *dflt != NUL) { if (mch_isdir(dflt)) // default file name is a directory { initdir = dflt; dflt = NULL; } else if (gettail(dflt) != dflt) // default file name includes a path { tofree = vim_strsave(dflt); if (tofree != NULL) { initdir = tofree; *gettail(initdir) = NUL; dflt = gettail(dflt); } } } if (initdir == NULL || *initdir == NUL) { // When 'browsedir' is a directory, use it if (STRCMP(p_bsdir, "last") != 0 && STRCMP(p_bsdir, "buffer") != 0 && STRCMP(p_bsdir, "current") != 0 && mch_isdir(p_bsdir)) initdir = p_bsdir; // When saving or 'browsedir' is "buffer", use buffer fname else if (((flags & BROWSE_SAVE) || *p_bsdir == 'b') && buf != NULL && buf->b_ffname != NULL) { if (dflt == NULL || *dflt == NUL) dflt = gettail(curbuf->b_ffname); tofree = vim_strsave(curbuf->b_ffname); if (tofree != NULL) { initdir = tofree; *gettail(initdir) = NUL; } } // When 'browsedir' is "last", use dir from last browse else if (*p_bsdir == 'l') initdir = last_dir; // When 'browsedir is "current", use current directory. This is the // default already, leave initdir empty. } # ifdef FEAT_GUI if (gui.in_use) // when this changes, also adjust f_has()! { if (filter == NULL # ifdef FEAT_EVAL && (filter = get_var_value((char_u *)"b:browsefilter")) == NULL && (filter = get_var_value((char_u *)"g:browsefilter")) == NULL # endif ) filter = BROWSE_FILTER_DEFAULT; if (flags & BROWSE_DIR) { # if defined(FEAT_GUI_GTK) || defined(MSWIN) // For systems that have a directory dialog. fname = gui_mch_browsedir(title, initdir); # else // Generic solution for selecting a directory: select a file and // remove the file name. fname = gui_mch_browse(0, title, dflt, ext, initdir, (char_u *)""); # endif # if !defined(FEAT_GUI_GTK) // Win32 adds a dummy file name, others return an arbitrary file // name. GTK+ 2 returns only the directory, if (fname != NULL && *fname != NUL && !mch_isdir(fname)) { // Remove the file name. char_u *tail = gettail_sep(fname); if (tail == fname) *tail++ = '.'; // use current dir *tail = NUL; } # endif } else fname = gui_mch_browse(flags & BROWSE_SAVE, title, dflt, ext, initdir, (char_u *)_(filter)); // We hang around in the dialog for a while, the user might do some // things to our files. The Win32 dialog allows deleting or renaming // a file, check timestamps. need_check_timestamps = TRUE; did_check_timestamps = FALSE; } else # endif { // TODO: non-GUI file selector here emsg(_("E338: Sorry, no file browser in console mode")); fname = NULL; } // keep the directory for next time if (fname != NULL) { vim_free(last_dir); last_dir = vim_strsave(fname); if (last_dir != NULL && !(flags & BROWSE_DIR)) { *gettail(last_dir) = NUL; if (*last_dir == NUL) { // filename only returned, must be in current dir vim_free(last_dir); last_dir = alloc(MAXPATHL); if (last_dir != NULL) mch_dirname(last_dir, MAXPATHL); } } } vim_free(tofree); cmdmod.cmod_flags = save_cmod_flags; return fname; } #endif #if defined(FEAT_EVAL) || defined(PROTO) /* * "browse(save, title, initdir, default)" function */ void f_browse(typval_T *argvars UNUSED, typval_T *rettv) { # ifdef FEAT_BROWSE int save; char_u *title; char_u *initdir; char_u *defname; char_u buf[NUMBUFLEN]; char_u buf2[NUMBUFLEN]; int error = FALSE; save = (int)tv_get_number_chk(&argvars[0], &error); title = tv_get_string_chk(&argvars[1]); initdir = tv_get_string_buf_chk(&argvars[2], buf); defname = tv_get_string_buf_chk(&argvars[3], buf2); if (error || title == NULL || initdir == NULL || defname == NULL) rettv->vval.v_string = NULL; else rettv->vval.v_string = do_browse(save ? BROWSE_SAVE : 0, title, defname, NULL, initdir, NULL, curbuf); # else rettv->vval.v_string = NULL; # endif rettv->v_type = VAR_STRING; } /* * "browsedir(title, initdir)" function */ void f_browsedir(typval_T *argvars UNUSED, typval_T *rettv) { # ifdef FEAT_BROWSE char_u *title; char_u *initdir; char_u buf[NUMBUFLEN]; title = tv_get_string_chk(&argvars[0]); initdir = tv_get_string_buf_chk(&argvars[1], buf); if (title == NULL || initdir == NULL) rettv->vval.v_string = NULL; else rettv->vval.v_string = do_browse(BROWSE_DIR, title, NULL, NULL, initdir, NULL, curbuf); # else rettv->vval.v_string = NULL; # endif rettv->v_type = VAR_STRING; } #endif // FEAT_EVAL /* * Replace home directory by "~" in each space or comma separated file name in * 'src'. * If anything fails (except when out of space) dst equals src. */ void home_replace( buf_T *buf, // when not NULL, check for help files char_u *src, // input file name char_u *dst, // where to put the result int dstlen, // maximum length of the result int one) // if TRUE, only replace one file name, include // spaces and commas in the file name. { size_t dirlen = 0, envlen = 0; size_t len; char_u *homedir_env, *homedir_env_orig; char_u *p; if (src == NULL) { *dst = NUL; return; } /* * If the file is a help file, remove the path completely. */ if (buf != NULL && buf->b_help) { vim_snprintf((char *)dst, dstlen, "%s", gettail(src)); return; } /* * We check both the value of the $HOME environment variable and the * "real" home directory. */ if (homedir != NULL) dirlen = STRLEN(homedir); #ifdef VMS homedir_env_orig = homedir_env = mch_getenv((char_u *)"SYS$LOGIN"); #else homedir_env_orig = homedir_env = mch_getenv((char_u *)"HOME"); #endif #ifdef MSWIN if (homedir_env == NULL) homedir_env_orig = homedir_env = mch_getenv((char_u *)"USERPROFILE"); #endif // Empty is the same as not set. if (homedir_env != NULL && *homedir_env == NUL) homedir_env = NULL; if (homedir_env != NULL && *homedir_env == '~') { int usedlen = 0; int flen; char_u *fbuf = NULL; flen = (int)STRLEN(homedir_env); (void)modify_fname((char_u *)":p", FALSE, &usedlen, &homedir_env, &fbuf, &flen); flen = (int)STRLEN(homedir_env); if (flen > 0 && vim_ispathsep(homedir_env[flen - 1])) // Remove the trailing / that is added to a directory. homedir_env[flen - 1] = NUL; } if (homedir_env != NULL) envlen = STRLEN(homedir_env); if (!one) src = skipwhite(src); while (*src && dstlen > 0) { /* * Here we are at the beginning of a file name. * First, check to see if the beginning of the file name matches * $HOME or the "real" home directory. Check that there is a '/' * after the match (so that if e.g. the file is "/home/pieter/bla", * and the home directory is "/home/piet", the file does not end up * as "~er/bla" (which would seem to indicate the file "bla" in user * er's home directory)). */ p = homedir; len = dirlen; for (;;) { if ( len && fnamencmp(src, p, len) == 0 && (vim_ispathsep(src[len]) || (!one && (src[len] == ',' || src[len] == ' ')) || src[len] == NUL)) { src += len; if (--dstlen > 0) *dst++ = '~'; // Do not add directory separator into dst, because dst is // expected to just return the directory name without the // directory separator '/'. break; } if (p == homedir_env) break; p = homedir_env; len = envlen; } // if (!one) skip to separator: space or comma while (*src && (one || (*src != ',' && *src != ' ')) && --dstlen > 0) *dst++ = *src++; // skip separator while ((*src == ' ' || *src == ',') && --dstlen > 0) *dst++ = *src++; } // if (dstlen == 0) out of space, what to do??? *dst = NUL; if (homedir_env != homedir_env_orig) vim_free(homedir_env); } /* * Like home_replace, store the replaced string in allocated memory. * When something fails, NULL is returned. */ char_u * home_replace_save( buf_T *buf, // when not NULL, check for help files char_u *src) // input file name { char_u *dst; unsigned len; len = 3; // space for "~/" and trailing NUL if (src != NULL) // just in case len += (unsigned)STRLEN(src); dst = alloc(len); if (dst != NULL) home_replace(buf, src, dst, len, TRUE); return dst; } /* * Compare two file names and return: * FPC_SAME if they both exist and are the same file. * FPC_SAMEX if they both don't exist and have the same file name. * FPC_DIFF if they both exist and are different files. * FPC_NOTX if they both don't exist. * FPC_DIFFX if one of them doesn't exist. * For the first name environment variables are expanded if "expandenv" is * TRUE. */ int fullpathcmp( char_u *s1, char_u *s2, int checkname, // when both don't exist, check file names int expandenv) { #ifdef UNIX char_u exp1[MAXPATHL]; char_u full1[MAXPATHL]; char_u full2[MAXPATHL]; stat_T st1, st2; int r1, r2; if (expandenv) expand_env(s1, exp1, MAXPATHL); else vim_strncpy(exp1, s1, MAXPATHL - 1); r1 = mch_stat((char *)exp1, &st1); r2 = mch_stat((char *)s2, &st2); if (r1 != 0 && r2 != 0) { // if mch_stat() doesn't work, may compare the names if (checkname) { if (fnamecmp(exp1, s2) == 0) return FPC_SAMEX; r1 = vim_FullName(exp1, full1, MAXPATHL, FALSE); r2 = vim_FullName(s2, full2, MAXPATHL, FALSE); if (r1 == OK && r2 == OK && fnamecmp(full1, full2) == 0) return FPC_SAMEX; } return FPC_NOTX; } if (r1 != 0 || r2 != 0) return FPC_DIFFX; if (st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino) return FPC_SAME; return FPC_DIFF; #else char_u *exp1; // expanded s1 char_u *full1; // full path of s1 char_u *full2; // full path of s2 int retval = FPC_DIFF; int r1, r2; // allocate one buffer to store three paths (alloc()/free() is slow!) if ((exp1 = alloc(MAXPATHL * 3)) != NULL) { full1 = exp1 + MAXPATHL; full2 = full1 + MAXPATHL; if (expandenv) expand_env(s1, exp1, MAXPATHL); else vim_strncpy(exp1, s1, MAXPATHL - 1); r1 = vim_FullName(exp1, full1, MAXPATHL, FALSE); r2 = vim_FullName(s2, full2, MAXPATHL, FALSE); // If vim_FullName() fails, the file probably doesn't exist. if (r1 != OK && r2 != OK) { if (checkname && fnamecmp(exp1, s2) == 0) retval = FPC_SAMEX; else retval = FPC_NOTX; } else if (r1 != OK || r2 != OK) retval = FPC_DIFFX; else if (fnamecmp(full1, full2)) retval = FPC_DIFF; else retval = FPC_SAME; vim_free(exp1); } return retval; #endif } /* * Get the tail of a path: the file name. * When the path ends in a path separator the tail is the NUL after it. * Fail safe: never returns NULL. */ char_u * gettail(char_u *fname) { char_u *p1, *p2; if (fname == NULL) return (char_u *)""; for (p1 = p2 = get_past_head(fname); *p2; ) // find last part of path { if (vim_ispathsep_nocolon(*p2)) p1 = p2 + 1; MB_PTR_ADV(p2); } return p1; } /* * Get pointer to tail of "fname", including path separators. Putting a NUL * here leaves the directory name. Takes care of "c:/" and "//". * Always returns a valid pointer. */ char_u * gettail_sep(char_u *fname) { char_u *p; char_u *t; p = get_past_head(fname); // don't remove the '/' from "c:/file" t = gettail(fname); while (t > p && after_pathsep(fname, t)) --t; #ifdef VMS // path separator is part of the path ++t; #endif return t; } /* * get the next path component (just after the next path separator). */ char_u * getnextcomp(char_u *fname) { while (*fname && !vim_ispathsep(*fname)) MB_PTR_ADV(fname); if (*fname) ++fname; return fname; } /* * Get a pointer to one character past the head of a path name. * Unix: after "/"; DOS: after "c:\"; Amiga: after "disk:/"; Mac: no head. * If there is no head, path is returned. */ char_u * get_past_head(char_u *path) { char_u *retval; #if defined(MSWIN) // may skip "c:" if (isalpha(path[0]) && path[1] == ':') retval = path + 2; else retval = path; #else # if defined(AMIGA) // may skip "label:" retval = vim_strchr(path, ':'); if (retval == NULL) retval = path; # else // Unix retval = path; # endif #endif while (vim_ispathsep(*retval)) ++retval; return retval; } /* * Return TRUE if 'c' is a path separator. * Note that for MS-Windows this includes the colon. */ int vim_ispathsep(int c) { #ifdef UNIX return (c == '/'); // UNIX has ':' inside file names #else # ifdef BACKSLASH_IN_FILENAME return (c == ':' || c == '/' || c == '\\'); # else # ifdef VMS // server"user passwd"::device:[full.path.name]fname.extension;version" return (c == ':' || c == '[' || c == ']' || c == '/' || c == '<' || c == '>' || c == '"' ); # else return (c == ':' || c == '/'); # endif // VMS # endif #endif } /* * Like vim_ispathsep(c), but exclude the colon for MS-Windows. */ int vim_ispathsep_nocolon(int c) { return vim_ispathsep(c) #ifdef BACKSLASH_IN_FILENAME && c != ':' #endif ; } /* * Return TRUE if the directory of "fname" exists, FALSE otherwise. * Also returns TRUE if there is no directory name. * "fname" must be writable!. */ int dir_of_file_exists(char_u *fname) { char_u *p; int c; int retval; p = gettail_sep(fname); if (p == fname) return TRUE; c = *p; *p = NUL; retval = mch_isdir(fname); *p = c; return retval; } /* * Versions of fnamecmp() and fnamencmp() that handle '/' and '\' equally * and deal with 'fileignorecase'. */ int vim_fnamecmp(char_u *x, char_u *y) { #ifdef BACKSLASH_IN_FILENAME return vim_fnamencmp(x, y, MAXPATHL); #else if (p_fic) return MB_STRICMP(x, y); return STRCMP(x, y); #endif } int vim_fnamencmp(char_u *x, char_u *y, size_t len) { #ifdef BACKSLASH_IN_FILENAME char_u *px = x; char_u *py = y; int cx = NUL; int cy = NUL; while (len > 0) { cx = PTR2CHAR(px); cy = PTR2CHAR(py); if (cx == NUL || cy == NUL || ((p_fic ? MB_TOLOWER(cx) != MB_TOLOWER(cy) : cx != cy) && !(cx == '/' && cy == '\\') && !(cx == '\\' && cy == '/'))) break; len -= mb_ptr2len(px); px += mb_ptr2len(px); py += mb_ptr2len(py); } if (len == 0) return 0; return (cx - cy); #else if (p_fic) return MB_STRNICMP(x, y, len); return STRNCMP(x, y, len); #endif } /* * Concatenate file names fname1 and fname2 into allocated memory. * Only add a '/' or '\\' when 'sep' is TRUE and it is necessary. */ char_u * concat_fnames(char_u *fname1, char_u *fname2, int sep) { char_u *dest; dest = alloc(STRLEN(fname1) + STRLEN(fname2) + 3); if (dest != NULL) { STRCPY(dest, fname1); if (sep) add_pathsep(dest); STRCAT(dest, fname2); } return dest; } /* * Add a path separator to a file name, unless it already ends in a path * separator. */ void add_pathsep(char_u *p) { if (*p != NUL && !after_pathsep(p, p + STRLEN(p))) STRCAT(p, PATHSEPSTR); } /* * FullName_save - Make an allocated copy of a full file name. * Returns NULL when out of memory. */ char_u * FullName_save( char_u *fname, int force) // force expansion, even when it already looks // like a full path name { char_u *buf; char_u *new_fname = NULL; if (fname == NULL) return NULL; buf = alloc(MAXPATHL); if (buf != NULL) { if (vim_FullName(fname, buf, MAXPATHL, force) != FAIL) new_fname = vim_strsave(buf); else new_fname = vim_strsave(fname); vim_free(buf); } return new_fname; } /* * return TRUE if "fname" exists. */ int vim_fexists(char_u *fname) { stat_T st; if (mch_stat((char *)fname, &st)) return FALSE; return TRUE; } /* * Invoke expand_wildcards() for one pattern. * Expand items like "%:h" before the expansion. * Returns OK or FAIL. */ int expand_wildcards_eval( char_u **pat, // pointer to input pattern int *num_file, // resulting number of files char_u ***file, // array of resulting files int flags) // EW_DIR, etc. { int ret = FAIL; char_u *eval_pat = NULL; char_u *exp_pat = *pat; char *ignored_msg; int usedlen; if (*exp_pat == '%' || *exp_pat == '#' || *exp_pat == '<') { ++emsg_off; eval_pat = eval_vars(exp_pat, exp_pat, &usedlen, NULL, &ignored_msg, NULL); --emsg_off; if (eval_pat != NULL) exp_pat = concat_str(eval_pat, exp_pat + usedlen); } if (exp_pat != NULL) ret = expand_wildcards(1, &exp_pat, num_file, file, flags); if (eval_pat != NULL) { vim_free(exp_pat); vim_free(eval_pat); } return ret; } /* * Expand wildcards. Calls gen_expand_wildcards() and removes files matching * 'wildignore'. * Returns OK or FAIL. When FAIL then "num_files" won't be set. */ int expand_wildcards( int num_pat, // number of input patterns char_u **pat, // array of input patterns int *num_files, // resulting number of files char_u ***files, // array of resulting files int flags) // EW_DIR, etc. { int retval; int i, j; char_u *p; int non_suf_match; // number without matching suffix retval = gen_expand_wildcards(num_pat, pat, num_files, files, flags); // When keeping all matches, return here if ((flags & EW_KEEPALL) || retval == FAIL) return retval; #ifdef FEAT_WILDIGN /* * Remove names that match 'wildignore'. */ if (*p_wig) { char_u *ffname; // check all files in (*files)[] for (i = 0; i < *num_files; ++i) { ffname = FullName_save((*files)[i], FALSE); if (ffname == NULL) // out of memory break; # ifdef VMS vms_remove_version(ffname); # endif if (match_file_list(p_wig, (*files)[i], ffname)) { // remove this matching file from the list vim_free((*files)[i]); for (j = i; j + 1 < *num_files; ++j) (*files)[j] = (*files)[j + 1]; --*num_files; --i; } vim_free(ffname); } // If the number of matches is now zero, we fail. if (*num_files == 0) { VIM_CLEAR(*files); return FAIL; } } #endif /* * Move the names where 'suffixes' match to the end. */ if (*num_files > 1) { non_suf_match = 0; for (i = 0; i < *num_files; ++i) { if (!match_suffix((*files)[i])) { /* * Move the name without matching suffix to the front * of the list. */ p = (*files)[i]; for (j = i; j > non_suf_match; --j) (*files)[j] = (*files)[j - 1]; (*files)[non_suf_match++] = p; } } } return retval; } /* * Return TRUE if "fname" matches with an entry in 'suffixes'. */ int match_suffix(char_u *fname) { int fnamelen, setsuflen; char_u *setsuf; #define MAXSUFLEN 30 // maximum length of a file suffix char_u suf_buf[MAXSUFLEN]; fnamelen = (int)STRLEN(fname); setsuflen = 0; for (setsuf = p_su; *setsuf; ) { setsuflen = copy_option_part(&setsuf, suf_buf, MAXSUFLEN, ".,"); if (setsuflen == 0) { char_u *tail = gettail(fname); // empty entry: match name without a '.' if (vim_strchr(tail, '.') == NULL) { setsuflen = 1; break; } } else { if (fnamelen >= setsuflen && fnamencmp(suf_buf, fname + fnamelen - setsuflen, (size_t)setsuflen) == 0) break; setsuflen = 0; } } return (setsuflen != 0); } #ifdef VIM_BACKTICK /* * Return TRUE if we can expand this backtick thing here. */ static int vim_backtick(char_u *p) { return (*p == '`' && *(p + 1) != NUL && *(p + STRLEN(p) - 1) == '`'); } /* * Expand an item in `backticks` by executing it as a command. * Currently only works when pat[] starts and ends with a `. * Returns number of file names found, -1 if an error is encountered. */ static int expand_backtick( garray_T *gap, char_u *pat, int flags) // EW_* flags { char_u *p; char_u *cmd; char_u *buffer; int cnt = 0; int i; // Create the command: lop off the backticks. cmd = vim_strnsave(pat + 1, STRLEN(pat) - 2); if (cmd == NULL) return -1; #ifdef FEAT_EVAL if (*cmd == '=') // `={expr}`: Expand expression buffer = eval_to_string(cmd + 1, TRUE); else #endif buffer = get_cmd_output(cmd, NULL, (flags & EW_SILENT) ? SHELL_SILENT : 0, NULL); vim_free(cmd); if (buffer == NULL) return -1; cmd = buffer; while (*cmd != NUL) { cmd = skipwhite(cmd); // skip over white space p = cmd; while (*p != NUL && *p != '\r' && *p != '\n') // skip over entry ++p; // add an entry if it is not empty if (p > cmd) { i = *p; *p = NUL; addfile(gap, cmd, flags); *p = i; ++cnt; } cmd = p; while (*cmd != NUL && (*cmd == '\r' || *cmd == '\n')) ++cmd; } vim_free(buffer); return cnt; } #endif // VIM_BACKTICK #if defined(MSWIN) /* * File name expansion code for MS-DOS, Win16 and Win32. It's here because * it's shared between these systems. */ /* * comparison function for qsort in dos_expandpath() */ static int pstrcmp(const void *a, const void *b) { return (pathcmp(*(char **)a, *(char **)b, -1)); } /* * Recursively expand one path component into all matching files and/or * directories. Adds matches to "gap". Handles "*", "?", "[a-z]", "**", etc. * Return the number of matches found. * "path" has backslashes before chars that are not to be expanded, starting * at "path[wildoff]". * Return the number of matches found. * NOTE: much of this is identical to unix_expandpath(), keep in sync! */ static int dos_expandpath( garray_T *gap, char_u *path, int wildoff, int flags, // EW_* flags int didstar) // expanded "**" once already { char_u *buf; char_u *path_end; char_u *p, *s, *e; int start_len = gap->ga_len; char_u *pat; regmatch_T regmatch; int starts_with_dot; int matches; int len; int starstar = FALSE; static int stardepth = 0; // depth for "**" expansion HANDLE hFind = INVALID_HANDLE_VALUE; WIN32_FIND_DATAW wfb; WCHAR *wn = NULL; // UCS-2 name, NULL when not used. char_u *matchname; int ok; char_u *p_alt; // Expanding "**" may take a long time, check for CTRL-C. if (stardepth > 0) { ui_breakcheck(); if (got_int) return 0; } // Make room for file name. When doing encoding conversion the actual // length may be quite a bit longer, thus use the maximum possible length. buf = alloc(MAXPATHL); if (buf == NULL) return 0; /* * Find the first part in the path name that contains a wildcard or a ~1. * Copy it into buf, including the preceding characters. */ p = buf; s = buf; e = NULL; path_end = path; while (*path_end != NUL) { // May ignore a wildcard that has a backslash before it; it will // be removed by rem_backslash() or file_pat_to_reg_pat() below. if (path_end >= path + wildoff && rem_backslash(path_end)) *p++ = *path_end++; else if (*path_end == '\\' || *path_end == ':' || *path_end == '/') { if (e != NULL) break; s = p + 1; } else if (path_end >= path + wildoff && vim_strchr((char_u *)"*?[~", *path_end) != NULL) e = p; if (has_mbyte) { len = (*mb_ptr2len)(path_end); STRNCPY(p, path_end, len); p += len; path_end += len; } else *p++ = *path_end++; } e = p; *e = NUL; // now we have one wildcard component between s and e // Remove backslashes between "wildoff" and the start of the wildcard // component. for (p = buf + wildoff; p < s; ++p) if (rem_backslash(p)) { STRMOVE(p, p + 1); --e; --s; } // Check for "**" between "s" and "e". for (p = s; p < e; ++p) if (p[0] == '*' && p[1] == '*') starstar = TRUE; starts_with_dot = *s == '.'; pat = file_pat_to_reg_pat(s, e, NULL, FALSE); if (pat == NULL) { vim_free(buf); return 0; } // compile the regexp into a program if (flags & (EW_NOERROR | EW_NOTWILD)) ++emsg_silent; regmatch.rm_ic = TRUE; // Always ignore case regmatch.regprog = vim_regcomp(pat, RE_MAGIC); if (flags & (EW_NOERROR | EW_NOTWILD)) --emsg_silent; vim_free(pat); if (regmatch.regprog == NULL && (flags & EW_NOTWILD) == 0) { vim_free(buf); return 0; } // remember the pattern or file name being looked for matchname = vim_strsave(s); // If "**" is by itself, this is the first time we encounter it and more // is following then find matches without any directory. if (!didstar && stardepth < 100 && starstar && e - s == 2 && *path_end == '/') { STRCPY(s, path_end + 1); ++stardepth; (void)dos_expandpath(gap, buf, (int)(s - buf), flags, TRUE); --stardepth; } // Scan all files in the directory with "dir/ *.*" STRCPY(s, "*.*"); wn = enc_to_utf16(buf, NULL); if (wn != NULL) hFind = FindFirstFileW(wn, &wfb); ok = (hFind != INVALID_HANDLE_VALUE); while (ok) { p = utf16_to_enc(wfb.cFileName, NULL); // p is allocated here if (p == NULL) break; // out of memory // Do not use the alternate filename when the file name ends in '~', // because it picks up backup files: short name for "foo.vim~" is // "foo~1.vim", which matches "*.vim". if (*wfb.cAlternateFileName == NUL || p[STRLEN(p) - 1] == '~') p_alt = NULL; else p_alt = utf16_to_enc(wfb.cAlternateFileName, NULL); // Ignore entries starting with a dot, unless when asked for. Accept // all entries found with "matchname". if ((p[0] != '.' || starts_with_dot || ((flags & EW_DODOT) && p[1] != NUL && (p[1] != '.' || p[2] != NUL))) && (matchname == NULL || (regmatch.regprog != NULL && (vim_regexec(®match, p, (colnr_T)0) || (p_alt != NULL && vim_regexec(®match, p_alt, (colnr_T)0)))) || ((flags & EW_NOTWILD) && fnamencmp(path + (s - buf), p, e - s) == 0))) { STRCPY(s, p); len = (int)STRLEN(buf); if (starstar && stardepth < 100 && (wfb.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) { // For "**" in the pattern first go deeper in the tree to // find matches. STRCPY(buf + len, "/**"); STRCPY(buf + len + 3, path_end); ++stardepth; (void)dos_expandpath(gap, buf, len + 1, flags, TRUE); --stardepth; } STRCPY(buf + len, path_end); if (mch_has_exp_wildcard(path_end)) { // need to expand another component of the path // remove backslashes for the remaining components only (void)dos_expandpath(gap, buf, len + 1, flags, FALSE); } else { // no more wildcards, check if there is a match // remove backslashes for the remaining components only if (*path_end != 0) backslash_halve(buf + len + 1); if (mch_getperm(buf) >= 0) // add existing file addfile(gap, buf, flags); } } vim_free(p_alt); vim_free(p); ok = FindNextFileW(hFind, &wfb); } FindClose(hFind); vim_free(wn); vim_free(buf); vim_regfree(regmatch.regprog); vim_free(matchname); matches = gap->ga_len - start_len; if (matches > 0) qsort(((char_u **)gap->ga_data) + start_len, (size_t)matches, sizeof(char_u *), pstrcmp); return matches; } int mch_expandpath( garray_T *gap, char_u *path, int flags) // EW_* flags { return dos_expandpath(gap, path, 0, flags, FALSE); } #endif // MSWIN #if (defined(UNIX) && !defined(VMS)) || defined(USE_UNIXFILENAME) \ || defined(PROTO) /* * Unix style wildcard expansion code. * It's here because it's used both for Unix and Mac. */ static int pstrcmp(const void *a, const void *b) { return (pathcmp(*(char **)a, *(char **)b, -1)); } /* * Recursively expand one path component into all matching files and/or * directories. Adds matches to "gap". Handles "*", "?", "[a-z]", "**", etc. * "path" has backslashes before chars that are not to be expanded, starting * at "path + wildoff". * Return the number of matches found. * NOTE: much of this is identical to dos_expandpath(), keep in sync! */ int unix_expandpath( garray_T *gap, char_u *path, int wildoff, int flags, // EW_* flags int didstar) // expanded "**" once already { char_u *buf; char_u *path_end; char_u *p, *s, *e; int start_len = gap->ga_len; char_u *pat; regmatch_T regmatch; int starts_with_dot; int matches; int len; int starstar = FALSE; static int stardepth = 0; // depth for "**" expansion DIR *dirp; struct dirent *dp; // Expanding "**" may take a long time, check for CTRL-C. if (stardepth > 0) { ui_breakcheck(); if (got_int) return 0; } // make room for file name buf = alloc(STRLEN(path) + BASENAMELEN + 5); if (buf == NULL) return 0; /* * Find the first part in the path name that contains a wildcard. * When EW_ICASE is set every letter is considered to be a wildcard. * Copy it into "buf", including the preceding characters. */ p = buf; s = buf; e = NULL; path_end = path; while (*path_end != NUL) { // May ignore a wildcard that has a backslash before it; it will // be removed by rem_backslash() or file_pat_to_reg_pat() below. if (path_end >= path + wildoff && rem_backslash(path_end)) *p++ = *path_end++; else if (*path_end == '/') { if (e != NULL) break; s = p + 1; } else if (path_end >= path + wildoff && (vim_strchr((char_u *)"*?[{~$", *path_end) != NULL || (!p_fic && (flags & EW_ICASE) && isalpha(PTR2CHAR(path_end))))) e = p; if (has_mbyte) { len = (*mb_ptr2len)(path_end); STRNCPY(p, path_end, len); p += len; path_end += len; } else *p++ = *path_end++; } e = p; *e = NUL; // Now we have one wildcard component between "s" and "e". // Remove backslashes between "wildoff" and the start of the wildcard // component. for (p = buf + wildoff; p < s; ++p) if (rem_backslash(p)) { STRMOVE(p, p + 1); --e; --s; } // Check for "**" between "s" and "e". for (p = s; p < e; ++p) if (p[0] == '*' && p[1] == '*') starstar = TRUE; // convert the file pattern to a regexp pattern starts_with_dot = *s == '.'; pat = file_pat_to_reg_pat(s, e, NULL, FALSE); if (pat == NULL) { vim_free(buf); return 0; } // compile the regexp into a program if (flags & EW_ICASE) regmatch.rm_ic = TRUE; // 'wildignorecase' set else regmatch.rm_ic = p_fic; // ignore case when 'fileignorecase' is set if (flags & (EW_NOERROR | EW_NOTWILD)) ++emsg_silent; regmatch.regprog = vim_regcomp(pat, RE_MAGIC); if (flags & (EW_NOERROR | EW_NOTWILD)) --emsg_silent; vim_free(pat); if (regmatch.regprog == NULL && (flags & EW_NOTWILD) == 0) { vim_free(buf); return 0; } // If "**" is by itself, this is the first time we encounter it and more // is following then find matches without any directory. if (!didstar && stardepth < 100 && starstar && e - s == 2 && *path_end == '/') { STRCPY(s, path_end + 1); ++stardepth; (void)unix_expandpath(gap, buf, (int)(s - buf), flags, TRUE); --stardepth; } // open the directory for scanning *s = NUL; dirp = opendir(*buf == NUL ? "." : (char *)buf); // Find all matching entries if (dirp != NULL) { for (;;) { dp = readdir(dirp); if (dp == NULL) break; if ((dp->d_name[0] != '.' || starts_with_dot || ((flags & EW_DODOT) && dp->d_name[1] != NUL && (dp->d_name[1] != '.' || dp->d_name[2] != NUL))) && ((regmatch.regprog != NULL && vim_regexec(®match, (char_u *)dp->d_name, (colnr_T)0)) || ((flags & EW_NOTWILD) && fnamencmp(path + (s - buf), dp->d_name, e - s) == 0))) { STRCPY(s, dp->d_name); len = STRLEN(buf); if (starstar && stardepth < 100) { // For "**" in the pattern first go deeper in the tree to // find matches. STRCPY(buf + len, "/**"); STRCPY(buf + len + 3, path_end); ++stardepth; (void)unix_expandpath(gap, buf, len + 1, flags, TRUE); --stardepth; } STRCPY(buf + len, path_end); if (mch_has_exp_wildcard(path_end)) // handle more wildcards { // need to expand another component of the path // remove backslashes for the remaining components only (void)unix_expandpath(gap, buf, len + 1, flags, FALSE); } else { stat_T sb; // no more wildcards, check if there is a match // remove backslashes for the remaining components only if (*path_end != NUL) backslash_halve(buf + len + 1); // add existing file or symbolic link if ((flags & EW_ALLLINKS) ? mch_lstat((char *)buf, &sb) >= 0 : mch_getperm(buf) >= 0) { #ifdef MACOS_CONVERT size_t precomp_len = STRLEN(buf)+1; char_u *precomp_buf = mac_precompose_path(buf, precomp_len, &precomp_len); if (precomp_buf) { mch_memmove(buf, precomp_buf, precomp_len); vim_free(precomp_buf); } #endif addfile(gap, buf, flags); } } } } closedir(dirp); } vim_free(buf); vim_regfree(regmatch.regprog); matches = gap->ga_len - start_len; if (matches > 0) qsort(((char_u **)gap->ga_data) + start_len, matches, sizeof(char_u *), pstrcmp); return matches; } #endif /* * Return TRUE if "p" contains what looks like an environment variable. * Allowing for escaping. */ static int has_env_var(char_u *p) { for ( ; *p; MB_PTR_ADV(p)) { if (*p == '\\' && p[1] != NUL) ++p; else if (vim_strchr((char_u *) #if defined(MSWIN) "$%" #else "$" #endif , *p) != NULL) return TRUE; } return FALSE; } #ifdef SPECIAL_WILDCHAR /* * Return TRUE if "p" contains a special wildcard character, one that Vim * cannot expand, requires using a shell. */ static int has_special_wildchar(char_u *p) { for ( ; *p; MB_PTR_ADV(p)) { // Disallow line break characters. if (*p == '\r' || *p == '\n') break; // Allow for escaping. if (*p == '\\' && p[1] != NUL && p[1] != '\r' && p[1] != '\n') ++p; else if (vim_strchr((char_u *)SPECIAL_WILDCHAR, *p) != NULL) { // A { must be followed by a matching }. if (*p == '{' && vim_strchr(p, '}') == NULL) continue; // A quote and backtick must be followed by another one. if ((*p == '`' || *p == '\'') && vim_strchr(p, *p) == NULL) continue; return TRUE; } } return FALSE; } #endif /* * Generic wildcard expansion code. * * Characters in "pat" that should not be expanded must be preceded with a * backslash. E.g., "/path\ with\ spaces/my\*star*" * * Return FAIL when no single file was found. In this case "num_file" is not * set, and "file" may contain an error message. * Return OK when some files found. "num_file" is set to the number of * matches, "file" to the array of matches. Call FreeWild() later. */ int gen_expand_wildcards( int num_pat, // number of input patterns char_u **pat, // array of input patterns int *num_file, // resulting number of files char_u ***file, // array of resulting files int flags) // EW_* flags { int i; garray_T ga; char_u *p; static int recursive = FALSE; int add_pat; int retval = OK; #if defined(FEAT_SEARCHPATH) int did_expand_in_path = FALSE; #endif /* * expand_env() is called to expand things like "~user". If this fails, * it calls ExpandOne(), which brings us back here. In this case, always * call the machine specific expansion function, if possible. Otherwise, * return FAIL. */ if (recursive) #ifdef SPECIAL_WILDCHAR return mch_expand_wildcards(num_pat, pat, num_file, file, flags); #else return FAIL; #endif #ifdef SPECIAL_WILDCHAR /* * If there are any special wildcard characters which we cannot handle * here, call machine specific function for all the expansion. This * avoids starting the shell for each argument separately. * For `=expr` do use the internal function. */ for (i = 0; i < num_pat; i++) { if (has_special_wildchar(pat[i]) # ifdef VIM_BACKTICK && !(vim_backtick(pat[i]) && pat[i][1] == '=') # endif ) return mch_expand_wildcards(num_pat, pat, num_file, file, flags); } #endif recursive = TRUE; /* * The matching file names are stored in a growarray. Init it empty. */ ga_init2(&ga, (int)sizeof(char_u *), 30); for (i = 0; i < num_pat; ++i) { add_pat = -1; p = pat[i]; #ifdef VIM_BACKTICK if (vim_backtick(p)) { add_pat = expand_backtick(&ga, p, flags); if (add_pat == -1) retval = FAIL; } else #endif { /* * First expand environment variables, "~/" and "~user/". */ if ((has_env_var(p) && !(flags & EW_NOTENV)) || *p == '~') { p = expand_env_save_opt(p, TRUE); if (p == NULL) p = pat[i]; #ifdef UNIX /* * On Unix, if expand_env() can't expand an environment * variable, use the shell to do that. Discard previously * found file names and start all over again. */ else if (has_env_var(p) || *p == '~') { vim_free(p); ga_clear_strings(&ga); i = mch_expand_wildcards(num_pat, pat, num_file, file, flags|EW_KEEPDOLLAR); recursive = FALSE; return i; } #endif } /* * If there are wildcards: Expand file names and add each match to * the list. If there is no match, and EW_NOTFOUND is given, add * the pattern. * If there are no wildcards: Add the file name if it exists or * when EW_NOTFOUND is given. */ if (mch_has_exp_wildcard(p)) { #if defined(FEAT_SEARCHPATH) if ((flags & EW_PATH) && !mch_isFullName(p) && !(p[0] == '.' && (vim_ispathsep(p[1]) || (p[1] == '.' && vim_ispathsep(p[2])))) ) { // :find completion where 'path' is used. // Recursiveness is OK here. recursive = FALSE; add_pat = expand_in_path(&ga, p, flags); recursive = TRUE; did_expand_in_path = TRUE; } else #endif add_pat = mch_expandpath(&ga, p, flags); } } if (add_pat == -1 || (add_pat == 0 && (flags & EW_NOTFOUND))) { char_u *t = backslash_halve_save(p); // When EW_NOTFOUND is used, always add files and dirs. Makes // "vim c:/" work. if (flags & EW_NOTFOUND) addfile(&ga, t, flags | EW_DIR | EW_FILE); else addfile(&ga, t, flags); if (t != p) vim_free(t); } #if defined(FEAT_SEARCHPATH) if (did_expand_in_path && ga.ga_len > 0 && (flags & EW_PATH)) uniquefy_paths(&ga, p); #endif if (p != pat[i]) vim_free(p); } // When returning FAIL the array must be freed here. if (retval == FAIL) ga_clear(&ga); *num_file = ga.ga_len; *file = (ga.ga_data != NULL) ? (char_u **)ga.ga_data : (char_u **)_("no matches"); recursive = FALSE; return ((flags & EW_EMPTYOK) || ga.ga_data != NULL) ? retval : FAIL; } /* * Add a file to a file list. Accepted flags: * EW_DIR add directories * EW_FILE add files * EW_EXEC add executable files * EW_NOTFOUND add even when it doesn't exist * EW_ADDSLASH add slash after directory name * EW_ALLLINKS add symlink also when the referred file does not exist */ void addfile( garray_T *gap, char_u *f, // filename int flags) { char_u *p; int isdir; stat_T sb; // if the file/dir/link doesn't exist, may not add it if (!(flags & EW_NOTFOUND) && ((flags & EW_ALLLINKS) ? mch_lstat((char *)f, &sb) < 0 : mch_getperm(f) < 0)) return; #ifdef FNAME_ILLEGAL // if the file/dir contains illegal characters, don't add it if (vim_strpbrk(f, (char_u *)FNAME_ILLEGAL) != NULL) return; #endif isdir = mch_isdir(f); if ((isdir && !(flags & EW_DIR)) || (!isdir && !(flags & EW_FILE))) return; // If the file isn't executable, may not add it. Do accept directories. // When invoked from expand_shellcmd() do not use $PATH. if (!isdir && (flags & EW_EXEC) && !mch_can_exe(f, NULL, !(flags & EW_SHELLCMD))) return; // Make room for another item in the file list. if (ga_grow(gap, 1) == FAIL) return; p = alloc(STRLEN(f) + 1 + isdir); if (p == NULL) return; STRCPY(p, f); #ifdef BACKSLASH_IN_FILENAME slash_adjust(p); #endif /* * Append a slash or backslash after directory names if none is present. */ #ifndef DONT_ADD_PATHSEP_TO_DIR if (isdir && (flags & EW_ADDSLASH)) add_pathsep(p); #endif ((char_u **)gap->ga_data)[gap->ga_len++] = p; } /* * Free the list of files returned by expand_wildcards() or other expansion * functions. */ void FreeWild(int count, char_u **files) { if (count <= 0 || files == NULL) return; while (count--) vim_free(files[count]); vim_free(files); } /* * Compare path "p[]" to "q[]". * If "maxlen" >= 0 compare "p[maxlen]" to "q[maxlen]" * Return value like strcmp(p, q), but consider path separators. */ int pathcmp(const char *p, const char *q, int maxlen) { int i, j; int c1, c2; const char *s = NULL; for (i = 0, j = 0; maxlen < 0 || (i < maxlen && j < maxlen);) { c1 = PTR2CHAR((char_u *)p + i); c2 = PTR2CHAR((char_u *)q + j); // End of "p": check if "q" also ends or just has a slash. if (c1 == NUL) { if (c2 == NUL) // full match return 0; s = q; i = j; break; } // End of "q": check if "p" just has a slash. if (c2 == NUL) { s = p; break; } if ((p_fic ? MB_TOUPPER(c1) != MB_TOUPPER(c2) : c1 != c2) #ifdef BACKSLASH_IN_FILENAME // consider '/' and '\\' to be equal && !((c1 == '/' && c2 == '\\') || (c1 == '\\' && c2 == '/')) #endif ) { if (vim_ispathsep(c1)) return -1; if (vim_ispathsep(c2)) return 1; return p_fic ? MB_TOUPPER(c1) - MB_TOUPPER(c2) : c1 - c2; // no match } i += mb_ptr2len((char_u *)p + i); j += mb_ptr2len((char_u *)q + j); } if (s == NULL) // "i" or "j" ran into "maxlen" return 0; c1 = PTR2CHAR((char_u *)s + i); c2 = PTR2CHAR((char_u *)s + i + mb_ptr2len((char_u *)s + i)); // ignore a trailing slash, but not "//" or ":/" if (c2 == NUL && i > 0 && !after_pathsep((char_u *)s, (char_u *)s + i) #ifdef BACKSLASH_IN_FILENAME && (c1 == '/' || c1 == '\\') #else && c1 == '/' #endif ) return 0; // match with trailing slash if (s == q) return -1; // no match return 1; } /* * Return TRUE if "name" is a full (absolute) path name or URL. */ int vim_isAbsName(char_u *name) { return (path_with_url(name) != 0 || mch_isFullName(name)); } /* * Get absolute file name into buffer "buf[len]". * * return FAIL for failure, OK otherwise */ int vim_FullName( char_u *fname, char_u *buf, int len, int force) // force expansion even when already absolute { int retval = OK; int url; *buf = NUL; if (fname == NULL) return FAIL; url = path_with_url(fname); if (!url) retval = mch_FullName(fname, buf, len, force); if (url || retval == FAIL) { // something failed; use the file name (truncate when too long) vim_strncpy(buf, fname, len - 1); } #if defined(MSWIN) slash_adjust(buf); #endif return retval; }