Extract file_search.c from misc2.c

Continue to split misc2.c in many other files (see #209).

The only changed I made to the moved code was adding
`vim_free(ff_expand_buffer)` to `free_finfile()`. This is was needed
because `ff_expand_buffer` was moved from `misc2.c` to `file_search.c`.

1 files changed, 1 insertions, 1589 deletions

diff --git a/src/misc2.c b/src/misc2.c
index 910ff5150c..d82c45f8ec 100644
--- a/src/misc2.c
+++ b/src/misc2.c
@@ -12,6 +12,7 @@
  */
 #include "vim.h"
 #include "misc2.h"
+#include "file_search.h"
 #include "blowfish.h"
 #include "charset.h"
 #include "edit.h"
@@ -37,8 +38,6 @@
 
 static char_u   *username = NULL; /* cached result of mch_get_user_name() */
 
-static char_u   *ff_expand_buffer = NULL; /* used for expanding filenames */
-
 static int coladvance2 __ARGS((pos_T *pos, int addspaces, int finetune,
                                colnr_T wcol));
 
@@ -856,8 +855,6 @@ void do_outofmem_msg(long_u size)
 
 #if defined(EXITFREE) || defined(PROTO)
 
-static void free_findfile __ARGS((void));
-
 /*
  * Free everything that we allocated.
  * Can be used to detect memory leaks, e.g., with ccmalloc.
@@ -931,7 +928,6 @@ void free_all_mem(void)          {
   vim_free(last_cmdline);
   vim_free(new_last_cmdline);
   set_keep_msg(NULL, 0);
-  vim_free(ff_expand_buffer);
 
   /* Clear cmdline history. */
   p_hi = 0;
@@ -3142,1590 +3138,6 @@ get_crypt_key (
 }
 
 
-/* TODO: make some #ifdef for this */
-/*--------[ file searching ]-------------------------------------------------*/
-/*
- * File searching functions for 'path', 'tags' and 'cdpath' options.
- * External visible functions:
- * vim_findfile_init()		creates/initialises the search context
- * vim_findfile_free_visited()	free list of visited files/dirs of search
- *				context
- * vim_findfile()		find a file in the search context
- * vim_findfile_cleanup()	cleanup/free search context created by
- *				vim_findfile_init()
- *
- * All static functions and variables start with 'ff_'
- *
- * In general it works like this:
- * First you create yourself a search context by calling vim_findfile_init().
- * It is possible to give a search context from a previous call to
- * vim_findfile_init(), so it can be reused. After this you call vim_findfile()
- * until you are satisfied with the result or it returns NULL. On every call it
- * returns the next file which matches the conditions given to
- * vim_findfile_init(). If it doesn't find a next file it returns NULL.
- *
- * It is possible to call vim_findfile_init() again to reinitialise your search
- * with some new parameters. Don't forget to pass your old search context to
- * it, so it can reuse it and especially reuse the list of already visited
- * directories. If you want to delete the list of already visited directories
- * simply call vim_findfile_free_visited().
- *
- * When you are done call vim_findfile_cleanup() to free the search context.
- *
- * The function vim_findfile_init() has a long comment, which describes the
- * needed parameters.
- *
- *
- *
- * ATTENTION:
- * ==========
- *	Also we use an allocated search context here, this functions are NOT
- *	thread-safe!!!!!
- *
- *	To minimize parameter passing (or because I'm to lazy), only the
- *	external visible functions get a search context as a parameter. This is
- *	then assigned to a static global, which is used throughout the local
- *	functions.
- */
-
-/*
- * type for the directory search stack
- */
-typedef struct ff_stack {
-  struct ff_stack     *ffs_prev;
-
-  /* the fix part (no wildcards) and the part containing the wildcards
-   * of the search path
-   */
-  char_u              *ffs_fix_path;
-  char_u              *ffs_wc_path;
-
-  /* files/dirs found in the above directory, matched by the first wildcard
-   * of wc_part
-   */
-  char_u              **ffs_filearray;
-  int ffs_filearray_size;
-  char_u ffs_filearray_cur;                  /* needed for partly handled dirs */
-
-  /* to store status of partly handled directories
-   * 0: we work on this directory for the first time
-   * 1: this directory was partly searched in an earlier step
-   */
-  int ffs_stage;
-
-  /* How deep are we in the directory tree?
-   * Counts backward from value of level parameter to vim_findfile_init
-   */
-  int ffs_level;
-
-  /* Did we already expand '**' to an empty string? */
-  int ffs_star_star_empty;
-} ff_stack_T;
-
-/*
- * type for already visited directories or files.
- */
-typedef struct ff_visited {
-  struct ff_visited   *ffv_next;
-
-  /* Visited directories are different if the wildcard string are
-   * different. So we have to save it.
-   */
-  char_u              *ffv_wc_path;
-  /* for unix use inode etc for comparison (needed because of links), else
-   * use filename.
-   */
-#ifdef UNIX
-  int ffv_dev_valid;                    /* ffv_dev and ffv_ino were set */
-  dev_t ffv_dev;                        /* device number */
-  ino_t ffv_ino;                        /* inode number */
-#endif
-  /* The memory for this struct is allocated according to the length of
-   * ffv_fname.
-   */
-  char_u ffv_fname[1];                  /* actually longer */
-} ff_visited_T;
-
-/*
- * We might have to manage several visited lists during a search.
- * This is especially needed for the tags option. If tags is set to:
- *      "./++/tags,./++/TAGS,++/tags"  (replace + with *)
- * So we have to do 3 searches:
- *   1) search from the current files directory downward for the file "tags"
- *   2) search from the current files directory downward for the file "TAGS"
- *   3) search from Vims current directory downwards for the file "tags"
- * As you can see, the first and the third search are for the same file, so for
- * the third search we can use the visited list of the first search. For the
- * second search we must start from a empty visited list.
- * The struct ff_visited_list_hdr is used to manage a linked list of already
- * visited lists.
- */
-typedef struct ff_visited_list_hdr {
-  struct ff_visited_list_hdr  *ffvl_next;
-
-  /* the filename the attached visited list is for */
-  char_u                      *ffvl_filename;
-
-  ff_visited_T                *ffvl_visited_list;
-
-} ff_visited_list_hdr_T;
-
-
-/*
- * '**' can be expanded to several directory levels.
- * Set the default maximum depth.
- */
-#define FF_MAX_STAR_STAR_EXPAND ((char_u)30)
-
-/*
- * The search context:
- *   ffsc_stack_ptr:	the stack for the dirs to search
- *   ffsc_visited_list: the currently active visited list
- *   ffsc_dir_visited_list: the currently active visited list for search dirs
- *   ffsc_visited_lists_list: the list of all visited lists
- *   ffsc_dir_visited_lists_list: the list of all visited lists for search dirs
- *   ffsc_file_to_search:     the file to search for
- *   ffsc_start_dir:	the starting directory, if search path was relative
- *   ffsc_fix_path:	the fix part of the given path (without wildcards)
- *			Needed for upward search.
- *   ffsc_wc_path:	the part of the given path containing wildcards
- *   ffsc_level:	how many levels of dirs to search downwards
- *   ffsc_stopdirs_v:	array of stop directories for upward search
- *   ffsc_find_what:	FINDFILE_BOTH, FINDFILE_DIR or FINDFILE_FILE
- *   ffsc_tagfile:	searching for tags file, don't use 'suffixesadd'
- */
-typedef struct ff_search_ctx_T {
-  ff_stack_T                 *ffsc_stack_ptr;
-  ff_visited_list_hdr_T      *ffsc_visited_list;
-  ff_visited_list_hdr_T      *ffsc_dir_visited_list;
-  ff_visited_list_hdr_T      *ffsc_visited_lists_list;
-  ff_visited_list_hdr_T      *ffsc_dir_visited_lists_list;
-  char_u                     *ffsc_file_to_search;
-  char_u                     *ffsc_start_dir;
-  char_u                     *ffsc_fix_path;
-  char_u                     *ffsc_wc_path;
-  int ffsc_level;
-  char_u                     **ffsc_stopdirs_v;
-  int ffsc_find_what;
-  int ffsc_tagfile;
-} ff_search_ctx_T;
-
-/* locally needed functions */
-static int ff_check_visited __ARGS((ff_visited_T **, char_u *, char_u *));
-static void vim_findfile_free_visited_list __ARGS(
-    (ff_visited_list_hdr_T **list_headp));
-static void ff_free_visited_list __ARGS((ff_visited_T *vl));
-static ff_visited_list_hdr_T* ff_get_visited_list __ARGS(
-    (char_u *, ff_visited_list_hdr_T **list_headp));
-static int ff_wc_equal __ARGS((char_u *s1, char_u *s2));
-
-static void ff_push __ARGS((ff_search_ctx_T *search_ctx, ff_stack_T *stack_ptr));
-static ff_stack_T *ff_pop __ARGS((ff_search_ctx_T *search_ctx));
-static void ff_clear __ARGS((ff_search_ctx_T *search_ctx));
-static void ff_free_stack_element __ARGS((ff_stack_T *stack_ptr));
-static ff_stack_T *ff_create_stack_element __ARGS((char_u *, char_u *, int, int));
-static int ff_path_in_stoplist __ARGS((char_u *, int, char_u **));
-
-static char_u e_pathtoolong[] = N_("E854: path too long for completion");
-
-
-/*
- * Initialization routine for vim_findfile().
- *
- * Returns the newly allocated search context or NULL if an error occurred.
- *
- * Don't forget to clean up by calling vim_findfile_cleanup() if you are done
- * with the search context.
- *
- * Find the file 'filename' in the directory 'path'.
- * The parameter 'path' may contain wildcards. If so only search 'level'
- * directories deep. The parameter 'level' is the absolute maximum and is
- * not related to restricts given to the '**' wildcard. If 'level' is 100
- * and you use '**200' vim_findfile() will stop after 100 levels.
- *
- * 'filename' cannot contain wildcards!  It is used as-is, no backslashes to
- * escape special characters.
- *
- * If 'stopdirs' is not NULL and nothing is found downward, the search is
- * restarted on the next higher directory level. This is repeated until the
- * start-directory of a search is contained in 'stopdirs'. 'stopdirs' has the
- * format ";*<dirname>*\(;<dirname>\)*;\=$".
- *
- * If the 'path' is relative, the starting dir for the search is either VIM's
- * current dir or if the path starts with "./" the current files dir.
- * If the 'path' is absolute, the starting dir is that part of the path before
- * the first wildcard.
- *
- * Upward search is only done on the starting dir.
- *
- * If 'free_visited' is TRUE the list of already visited files/directories is
- * cleared. Set this to FALSE if you just want to search from another
- * directory, but want to be sure that no directory from a previous search is
- * searched again. This is useful if you search for a file at different places.
- * The list of visited files/dirs can also be cleared with the function
- * vim_findfile_free_visited().
- *
- * Set the parameter 'find_what' to FINDFILE_DIR if you want to search for
- * directories only, FINDFILE_FILE for files only, FINDFILE_BOTH for both.
- *
- * A search context returned by a previous call to vim_findfile_init() can be
- * passed in the parameter "search_ctx_arg".  This context is reused and
- * reinitialized with the new parameters.  The list of already visited
- * directories from this context is only deleted if the parameter
- * "free_visited" is true.  Be aware that the passed "search_ctx_arg" is freed
- * if the reinitialization fails.
- *
- * If you don't have a search context from a previous call "search_ctx_arg"
- * must be NULL.
- *
- * This function silently ignores a few errors, vim_findfile() will have
- * limited functionality then.
- */
-void *
-vim_findfile_init (
-    char_u *path,
-    char_u *filename,
-    char_u *stopdirs,
-    int level,
-    int free_visited,
-    int find_what,
-    void *search_ctx_arg,
-    int tagfile,                    /* expanding names of tags files */
-    char_u *rel_fname         /* file name to use for "." */
-)
-{
-  char_u              *wc_part;
-  ff_stack_T          *sptr;
-  ff_search_ctx_T     *search_ctx;
-
-  /* If a search context is given by the caller, reuse it, else allocate a
-   * new one.
-   */
-  if (search_ctx_arg != NULL)
-    search_ctx = search_ctx_arg;
-  else {
-    search_ctx = (ff_search_ctx_T*)alloc((unsigned)sizeof(ff_search_ctx_T));
-    if (search_ctx == NULL)
-      goto error_return;
-    vim_memset(search_ctx, 0, sizeof(ff_search_ctx_T));
-  }
-  search_ctx->ffsc_find_what = find_what;
-  search_ctx->ffsc_tagfile = tagfile;
-
-  /* clear the search context, but NOT the visited lists */
-  ff_clear(search_ctx);
-
-  /* clear visited list if wanted */
-  if (free_visited == TRUE)
-    vim_findfile_free_visited(search_ctx);
-  else {
-    /* Reuse old visited lists. Get the visited list for the given
-     * filename. If no list for the current filename exists, creates a new
-     * one. */
-    search_ctx->ffsc_visited_list = ff_get_visited_list(filename,
-        &search_ctx->ffsc_visited_lists_list);
-    if (search_ctx->ffsc_visited_list == NULL)
-      goto error_return;
-    search_ctx->ffsc_dir_visited_list = ff_get_visited_list(filename,
-        &search_ctx->ffsc_dir_visited_lists_list);
-    if (search_ctx->ffsc_dir_visited_list == NULL)
-      goto error_return;
-  }
-
-  if (ff_expand_buffer == NULL) {
-    ff_expand_buffer = (char_u*)alloc(MAXPATHL);
-    if (ff_expand_buffer == NULL)
-      goto error_return;
-  }
-
-  /* Store information on starting dir now if path is relative.
-   * If path is absolute, we do that later.  */
-  if (path[0] == '.'
-      && (vim_ispathsep(path[1]) || path[1] == NUL)
-      && (!tagfile || vim_strchr(p_cpo, CPO_DOTTAG) == NULL)
-      && rel_fname != NULL) {
-    int len = (int)(gettail(rel_fname) - rel_fname);
-
-    if (!vim_isAbsName(rel_fname) && len + 1 < MAXPATHL) {
-      /* Make the start dir an absolute path name. */
-      vim_strncpy(ff_expand_buffer, rel_fname, len);
-      search_ctx->ffsc_start_dir = FullName_save(ff_expand_buffer, FALSE);
-    } else
-      search_ctx->ffsc_start_dir = vim_strnsave(rel_fname, len);
-    if (search_ctx->ffsc_start_dir == NULL)
-      goto error_return;
-    if (*++path != NUL)
-      ++path;
-  } else if (*path == NUL || !vim_isAbsName(path))   {
-#ifdef BACKSLASH_IN_FILENAME
-    /* "c:dir" needs "c:" to be expanded, otherwise use current dir */
-    if (*path != NUL && path[1] == ':') {
-      char_u drive[3];
-
-      drive[0] = path[0];
-      drive[1] = ':';
-      drive[2] = NUL;
-      if (vim_FullName(drive, ff_expand_buffer, MAXPATHL, TRUE) == FAIL)
-        goto error_return;
-      path += 2;
-    } else
-#endif
-    if (mch_dirname(ff_expand_buffer, MAXPATHL) == FAIL)
-      goto error_return;
-
-    search_ctx->ffsc_start_dir = vim_strsave(ff_expand_buffer);
-    if (search_ctx->ffsc_start_dir == NULL)
-      goto error_return;
-
-#ifdef BACKSLASH_IN_FILENAME
-    /* A path that starts with "/dir" is relative to the drive, not to the
-     * directory (but not for "//machine/dir").  Only use the drive name. */
-    if ((*path == '/' || *path == '\\')
-        && path[1] != path[0]
-        && search_ctx->ffsc_start_dir[1] == ':')
-      search_ctx->ffsc_start_dir[2] = NUL;
-#endif
-  }
-
-  /*
-   * If stopdirs are given, split them into an array of pointers.
-   * If this fails (mem allocation), there is no upward search at all or a
-   * stop directory is not recognized -> continue silently.
-   * If stopdirs just contains a ";" or is empty,
-   * search_ctx->ffsc_stopdirs_v will only contain a  NULL pointer. This
-   * is handled as unlimited upward search.  See function
-   * ff_path_in_stoplist() for details.
-   */
-  if (stopdirs != NULL) {
-    char_u  *walker = stopdirs;
-    int dircount;
-
-    while (*walker == ';')
-      walker++;
-
-    dircount = 1;
-    search_ctx->ffsc_stopdirs_v =
-      (char_u **)alloc((unsigned)sizeof(char_u *));
-
-    if (search_ctx->ffsc_stopdirs_v != NULL) {
-      do {
-        char_u  *helper;
-        void    *ptr;
-
-        helper = walker;
-        ptr = vim_realloc(search_ctx->ffsc_stopdirs_v,
-            (dircount + 1) * sizeof(char_u *));
-        if (ptr)
-          search_ctx->ffsc_stopdirs_v = ptr;
-        else
-          /* ignore, keep what we have and continue */
-          break;
-        walker = vim_strchr(walker, ';');
-        if (walker) {
-          search_ctx->ffsc_stopdirs_v[dircount-1] =
-            vim_strnsave(helper, (int)(walker - helper));
-          walker++;
-        } else
-          /* this might be "", which means ascent till top
-           * of directory tree.
-           */
-          search_ctx->ffsc_stopdirs_v[dircount-1] =
-            vim_strsave(helper);
-
-        dircount++;
-
-      } while (walker != NULL);
-      search_ctx->ffsc_stopdirs_v[dircount-1] = NULL;
-    }
-  }
-
-  search_ctx->ffsc_level = level;
-
-  /* split into:
-   *  -fix path
-   *  -wildcard_stuff (might be NULL)
-   */
-  wc_part = vim_strchr(path, '*');
-  if (wc_part != NULL) {
-    int llevel;
-    int len;
-    char    *errpt;
-
-    /* save the fix part of the path */
-    search_ctx->ffsc_fix_path = vim_strnsave(path, (int)(wc_part - path));
-
-    /*
-     * copy wc_path and add restricts to the '**' wildcard.
-     * The octet after a '**' is used as a (binary) counter.
-     * So '**3' is transposed to '**^C' ('^C' is ASCII value 3)
-     * or '**76' is transposed to '**N'( 'N' is ASCII value 76).
-     * For EBCDIC you get different character values.
-     * If no restrict is given after '**' the default is used.
-     * Due to this technique the path looks awful if you print it as a
-     * string.
-     */
-    len = 0;
-    while (*wc_part != NUL) {
-      if (len + 5 >= MAXPATHL) {
-        EMSG(_(e_pathtoolong));
-        break;
-      }
-      if (STRNCMP(wc_part, "**", 2) == 0) {
-        ff_expand_buffer[len++] = *wc_part++;
-        ff_expand_buffer[len++] = *wc_part++;
-
-        llevel = strtol((char *)wc_part, &errpt, 10);
-        if ((char_u *)errpt != wc_part && llevel > 0 && llevel < 255)
-          ff_expand_buffer[len++] = llevel;
-        else if ((char_u *)errpt != wc_part && llevel == 0)
-          /* restrict is 0 -> remove already added '**' */
-          len -= 2;
-        else
-          ff_expand_buffer[len++] = FF_MAX_STAR_STAR_EXPAND;
-        wc_part = (char_u *)errpt;
-        if (*wc_part != NUL && !vim_ispathsep(*wc_part)) {
-          EMSG2(_(
-                  "E343: Invalid path: '**[number]' must be at the end of the path or be followed by '%s'."),
-              PATHSEPSTR);
-          goto error_return;
-        }
-      } else
-        ff_expand_buffer[len++] = *wc_part++;
-    }
-    ff_expand_buffer[len] = NUL;
-    search_ctx->ffsc_wc_path = vim_strsave(ff_expand_buffer);
-
-    if (search_ctx->ffsc_wc_path == NULL)
-      goto error_return;
-  } else
-    search_ctx->ffsc_fix_path = vim_strsave(path);
-
-  if (search_ctx->ffsc_start_dir == NULL) {
-    /* store the fix part as startdir.
-     * This is needed if the parameter path is fully qualified.
-     */
-    search_ctx->ffsc_start_dir = vim_strsave(search_ctx->ffsc_fix_path);
-    if (search_ctx->ffsc_start_dir == NULL)
-      goto error_return;
-    search_ctx->ffsc_fix_path[0] = NUL;
-  }
-
-  /* create an absolute path */
-  if (STRLEN(search_ctx->ffsc_start_dir)
-      + STRLEN(search_ctx->ffsc_fix_path) + 3 >= MAXPATHL) {
-    EMSG(_(e_pathtoolong));
-    goto error_return;
-  }
-  STRCPY(ff_expand_buffer, search_ctx->ffsc_start_dir);
-  add_pathsep(ff_expand_buffer);
-  {
-    int eb_len = (int)STRLEN(ff_expand_buffer);
-    char_u *buf = alloc(eb_len
-        + (int)STRLEN(search_ctx->ffsc_fix_path) + 1);
-
-    STRCPY(buf, ff_expand_buffer);
-    STRCPY(buf + eb_len, search_ctx->ffsc_fix_path);
-    if (mch_isdir(buf)) {
-      STRCAT(ff_expand_buffer, search_ctx->ffsc_fix_path);
-      add_pathsep(ff_expand_buffer);
-    } else   {
-      char_u *p =  gettail(search_ctx->ffsc_fix_path);
-      char_u *wc_path = NULL;
-      char_u *temp = NULL;
-      int len = 0;
-
-      if (p > search_ctx->ffsc_fix_path) {
-        len = (int)(p - search_ctx->ffsc_fix_path) - 1;
-        STRNCAT(ff_expand_buffer, search_ctx->ffsc_fix_path, len);
-        add_pathsep(ff_expand_buffer);
-      } else
-        len = (int)STRLEN(search_ctx->ffsc_fix_path);
-
-      if (search_ctx->ffsc_wc_path != NULL) {
-        wc_path = vim_strsave(search_ctx->ffsc_wc_path);
-        temp = alloc((int)(STRLEN(search_ctx->ffsc_wc_path)
-                           + STRLEN(search_ctx->ffsc_fix_path + len)
-                           + 1));
-      }
-
-      if (temp == NULL || wc_path == NULL) {
-        vim_free(buf);
-        vim_free(temp);
-        vim_free(wc_path);
-        goto error_return;
-      }
-
-      STRCPY(temp, search_ctx->ffsc_fix_path + len);
-      STRCAT(temp, search_ctx->ffsc_wc_path);
-      vim_free(search_ctx->ffsc_wc_path);
-      vim_free(wc_path);
-      search_ctx->ffsc_wc_path = temp;
-    }
-    vim_free(buf);
-  }
-
-  sptr = ff_create_stack_element(ff_expand_buffer,
-      search_ctx->ffsc_wc_path,
-      level, 0);
-
-  if (sptr == NULL)
-    goto error_return;
-
-  ff_push(search_ctx, sptr);
-
-  search_ctx->ffsc_file_to_search = vim_strsave(filename);
-  if (search_ctx->ffsc_file_to_search == NULL)
-    goto error_return;
-
-  return search_ctx;
-
-error_return:
-  /*
-   * We clear the search context now!
-   * Even when the caller gave us a (perhaps valid) context we free it here,
-   * as we might have already destroyed it.
-   */
-  vim_findfile_cleanup(search_ctx);
-  return NULL;
-}
-
-/*
- * Get the stopdir string.  Check that ';' is not escaped.
- */
-char_u *vim_findfile_stopdir(char_u *buf)
-{
-  char_u      *r_ptr = buf;
-
-  while (*r_ptr != NUL && *r_ptr != ';') {
-    if (r_ptr[0] == '\\' && r_ptr[1] == ';') {
-      /* Overwrite the escape char,
-       * use STRLEN(r_ptr) to move the trailing '\0'. */
-      STRMOVE(r_ptr, r_ptr + 1);
-      r_ptr++;
-    }
-    r_ptr++;
-  }
-  if (*r_ptr == ';') {
-    *r_ptr = 0;
-    r_ptr++;
-  } else if (*r_ptr == NUL)
-    r_ptr = NULL;
-  return r_ptr;
-}
-
-/*
- * Clean up the given search context. Can handle a NULL pointer.
- */
-void vim_findfile_cleanup(void *ctx)
-{
-  if (ctx == NULL)
-    return;
-
-  vim_findfile_free_visited(ctx);
-  ff_clear(ctx);
-  vim_free(ctx);
-}
-
-/*
- * Find a file in a search context.
- * The search context was created with vim_findfile_init() above.
- * Return a pointer to an allocated file name or NULL if nothing found.
- * To get all matching files call this function until you get NULL.
- *
- * If the passed search_context is NULL, NULL is returned.
- *
- * The search algorithm is depth first. To change this replace the
- * stack with a list (don't forget to leave partly searched directories on the
- * top of the list).
- */
-char_u *vim_findfile(void *search_ctx_arg)
-{
-  char_u      *file_path;
-  char_u      *rest_of_wildcards;
-  char_u      *path_end = NULL;
-  ff_stack_T  *stackp;
-  int len;
-  int i;
-  char_u      *p;
-  char_u      *suf;
-  ff_search_ctx_T *search_ctx;
-
-  if (search_ctx_arg == NULL)
-    return NULL;
-
-  search_ctx = (ff_search_ctx_T *)search_ctx_arg;
-
-  /*
-   * filepath is used as buffer for various actions and as the storage to
-   * return a found filename.
-   */
-  if ((file_path = alloc((int)MAXPATHL)) == NULL)
-    return NULL;
-
-  /* store the end of the start dir -- needed for upward search */
-  if (search_ctx->ffsc_start_dir != NULL)
-    path_end = &search_ctx->ffsc_start_dir[
-      STRLEN(search_ctx->ffsc_start_dir)];
-
-  /* upward search loop */
-  for (;; ) {
-    /* downward search loop */
-    for (;; ) {
-      /* check if user user wants to stop the search*/
-      ui_breakcheck();
-      if (got_int)
-        break;
-
-      /* get directory to work on from stack */
-      stackp = ff_pop(search_ctx);
-      if (stackp == NULL)
-        break;
-
-      /*
-       * TODO: decide if we leave this test in
-       *
-       * GOOD: don't search a directory(-tree) twice.
-       * BAD:  - check linked list for every new directory entered.
-       *       - check for double files also done below
-       *
-       * Here we check if we already searched this directory.
-       * We already searched a directory if:
-       * 1) The directory is the same.
-       * 2) We would use the same wildcard string.
-       *
-       * Good if you have links on same directory via several ways
-       *  or you have selfreferences in directories (e.g. SuSE Linux 6.3:
-       *  /etc/rc.d/init.d is linked to /etc/rc.d -> endless loop)
-       *
-       * This check is only needed for directories we work on for the
-       * first time (hence stackp->ff_filearray == NULL)
-       */
-      if (stackp->ffs_filearray == NULL
-          && ff_check_visited(&search_ctx->ffsc_dir_visited_list
-              ->ffvl_visited_list,
-              stackp->ffs_fix_path
-              , stackp->ffs_wc_path
-              ) == FAIL) {
-#ifdef FF_VERBOSE
-        if (p_verbose >= 5) {
-          verbose_enter_scroll();
-          smsg((char_u *)"Already Searched: %s (%s)",
-              stackp->ffs_fix_path, stackp->ffs_wc_path);
-          /* don't overwrite this either */
-          msg_puts((char_u *)"\n");
-          verbose_leave_scroll();
-        }
-#endif
-        ff_free_stack_element(stackp);
-        continue;
-      }
-#ifdef FF_VERBOSE
-      else if (p_verbose >= 5) {
-        verbose_enter_scroll();
-        smsg((char_u *)"Searching: %s (%s)",
-            stackp->ffs_fix_path, stackp->ffs_wc_path);
-        /* don't overwrite this either */
-        msg_puts((char_u *)"\n");
-        verbose_leave_scroll();
-      }
-#endif
-
-      /* check depth */
-      if (stackp->ffs_level <= 0) {
-        ff_free_stack_element(stackp);
-        continue;
-      }
-
-      file_path[0] = NUL;
-
-      /*
-       * If no filearray till now expand wildcards
-       * The function expand_wildcards() can handle an array of paths
-       * and all possible expands are returned in one array. We use this
-       * to handle the expansion of '**' into an empty string.
-       */
-      if (stackp->ffs_filearray == NULL) {
-        char_u *dirptrs[2];
-
-        /* we use filepath to build the path expand_wildcards() should
-         * expand.
-         */
-        dirptrs[0] = file_path;
-        dirptrs[1] = NULL;
-
-        /* if we have a start dir copy it in */
-        if (!vim_isAbsName(stackp->ffs_fix_path)
-            && search_ctx->ffsc_start_dir) {
-          STRCPY(file_path, search_ctx->ffsc_start_dir);
-          add_pathsep(file_path);
-        }
-
-        /* append the fix part of the search path */
-        STRCAT(file_path, stackp->ffs_fix_path);
-        add_pathsep(file_path);
-
-        rest_of_wildcards = stackp->ffs_wc_path;
-        if (*rest_of_wildcards != NUL) {
-          len = (int)STRLEN(file_path);
-          if (STRNCMP(rest_of_wildcards, "**", 2) == 0) {
-            /* pointer to the restrict byte
-             * The restrict byte is not a character!
-             */
-            p = rest_of_wildcards + 2;
-
-            if (*p > 0) {
-              (*p)--;
-              file_path[len++] = '*';
-            }
-
-            if (*p == 0) {
-              /* remove '**<numb> from wildcards */
-              STRMOVE(rest_of_wildcards, rest_of_wildcards + 3);
-            } else
-              rest_of_wildcards += 3;
-
-            if (stackp->ffs_star_star_empty == 0) {
-              /* if not done before, expand '**' to empty */
-              stackp->ffs_star_star_empty = 1;
-              dirptrs[1] = stackp->ffs_fix_path;
-            }
-          }
-
-          /*
-           * Here we copy until the next path separator or the end of
-           * the path. If we stop at a path separator, there is
-           * still something else left. This is handled below by
-           * pushing every directory returned from expand_wildcards()
-           * on the stack again for further search.
-           */
-          while (*rest_of_wildcards
-                 && !vim_ispathsep(*rest_of_wildcards))
-            file_path[len++] = *rest_of_wildcards++;
-
-          file_path[len] = NUL;
-          if (vim_ispathsep(*rest_of_wildcards))
-            rest_of_wildcards++;
-        }
-
-        /*
-         * Expand wildcards like "*" and "$VAR".
-         * If the path is a URL don't try this.
-         */
-        if (path_with_url(dirptrs[0])) {
-          stackp->ffs_filearray = (char_u **)
-                                  alloc((unsigned)sizeof(char *));
-          if (stackp->ffs_filearray != NULL
-              && (stackp->ffs_filearray[0]
-                    = vim_strsave(dirptrs[0])) != NULL)
-            stackp->ffs_filearray_size = 1;
-          else
-            stackp->ffs_filearray_size = 0;
-        } else
-          /* Add EW_NOTWILD because the expanded path may contain
-           * wildcard characters that are to be taken literally.
-           * This is a bit of a hack. */
-          expand_wildcards((dirptrs[1] == NULL) ? 1 : 2, dirptrs,
-              &stackp->ffs_filearray_size,
-              &stackp->ffs_filearray,
-              EW_DIR|EW_ADDSLASH|EW_SILENT|EW_NOTWILD);
-
-        stackp->ffs_filearray_cur = 0;
-        stackp->ffs_stage = 0;
-      } else
-        rest_of_wildcards = &stackp->ffs_wc_path[
-          STRLEN(stackp->ffs_wc_path)];
-
-      if (stackp->ffs_stage == 0) {
-        /* this is the first time we work on this directory */
-        if (*rest_of_wildcards == NUL) {
-          /*
-           * We don't have further wildcards to expand, so we have to
-           * check for the final file now.
-           */
-          for (i = stackp->ffs_filearray_cur;
-               i < stackp->ffs_filearray_size; ++i) {
-            if (!path_with_url(stackp->ffs_filearray[i])
-                && !mch_isdir(stackp->ffs_filearray[i]))
-              continue;                 /* not a directory */
-
-            /* prepare the filename to be checked for existence
-             * below */
-            STRCPY(file_path, stackp->ffs_filearray[i]);
-            add_pathsep(file_path);
-            STRCAT(file_path, search_ctx->ffsc_file_to_search);
-
-            /*
-             * Try without extra suffix and then with suffixes
-             * from 'suffixesadd'.
-             */
-            len = (int)STRLEN(file_path);
-            if (search_ctx->ffsc_tagfile)
-              suf = (char_u *)"";
-            else
-              suf = curbuf->b_p_sua;
-            for (;; ) {
-              /* if file exists and we didn't already find it */
-              if ((path_with_url(file_path)
-                   || (mch_getperm(file_path) >= 0
-                       && (search_ctx->ffsc_find_what
-                           == FINDFILE_BOTH
-                           || ((search_ctx->ffsc_find_what
-                                == FINDFILE_DIR)
-                               == mch_isdir(file_path)))))
-#ifndef FF_VERBOSE
-                  && (ff_check_visited(
-                          &search_ctx->ffsc_visited_list->ffvl_visited_list,
-                          file_path
-                          , (char_u *)""
-                          ) == OK)
-#endif
-                  ) {
-#ifdef FF_VERBOSE
-                if (ff_check_visited(
-                        &search_ctx->ffsc_visited_list->ffvl_visited_list,
-                        file_path
-                        , (char_u *)""
-                        ) == FAIL) {
-                  if (p_verbose >= 5) {
-                    verbose_enter_scroll();
-                    smsg((char_u *)"Already: %s",
-                        file_path);
-                    /* don't overwrite this either */
-                    msg_puts((char_u *)"\n");
-                    verbose_leave_scroll();
-                  }
-                  continue;
-                }
-#endif
-
-                /* push dir to examine rest of subdirs later */
-                stackp->ffs_filearray_cur = i + 1;
-                ff_push(search_ctx, stackp);
-
-                if (!path_with_url(file_path))
-                  simplify_filename(file_path);
-                if (mch_dirname(ff_expand_buffer, MAXPATHL)
-                    == OK) {
-                  p = shorten_fname(file_path,
-                      ff_expand_buffer);
-                  if (p != NULL)
-                    STRMOVE(file_path, p);
-                }
-#ifdef FF_VERBOSE
-                if (p_verbose >= 5) {
-                  verbose_enter_scroll();
-                  smsg((char_u *)"HIT: %s", file_path);
-                  /* don't overwrite this either */
-                  msg_puts((char_u *)"\n");
-                  verbose_leave_scroll();
-                }
-#endif
-                return file_path;
-              }
-
-              /* Not found or found already, try next suffix. */
-              if (*suf == NUL)
-                break;
-              copy_option_part(&suf, file_path + len,
-                  MAXPATHL - len, ",");
-            }
-          }
-        } else   {
-          /*
-           * still wildcards left, push the directories for further
-           * search
-           */
-          for (i = stackp->ffs_filearray_cur;
-               i < stackp->ffs_filearray_size; ++i) {
-            if (!mch_isdir(stackp->ffs_filearray[i]))
-              continue;                 /* not a directory */
-
-            ff_push(search_ctx,
-                ff_create_stack_element(
-                    stackp->ffs_filearray[i],
-                    rest_of_wildcards,
-                    stackp->ffs_level - 1, 0));
-          }
-        }
-        stackp->ffs_filearray_cur = 0;
-        stackp->ffs_stage = 1;
-      }
-
-      /*
-       * if wildcards contains '**' we have to descent till we reach the
-       * leaves of the directory tree.
-       */
-      if (STRNCMP(stackp->ffs_wc_path, "**", 2) == 0) {
-        for (i = stackp->ffs_filearray_cur;
-             i < stackp->ffs_filearray_size; ++i) {
-          if (fnamecmp(stackp->ffs_filearray[i],
-                  stackp->ffs_fix_path) == 0)
-            continue;             /* don't repush same directory */
-          if (!mch_isdir(stackp->ffs_filearray[i]))
-            continue;               /* not a directory */
-          ff_push(search_ctx,
-              ff_create_stack_element(stackp->ffs_filearray[i],
-                  stackp->ffs_wc_path, stackp->ffs_level - 1, 1));
-        }
-      }
-
-      /* we are done with the current directory */
-      ff_free_stack_element(stackp);
-
-    }
-
-    /* If we reached this, we didn't find anything downwards.
-     * Let's check if we should do an upward search.
-     */
-    if (search_ctx->ffsc_start_dir
-        && search_ctx->ffsc_stopdirs_v != NULL && !got_int) {
-      ff_stack_T  *sptr;
-
-      /* is the last starting directory in the stop list? */
-      if (ff_path_in_stoplist(search_ctx->ffsc_start_dir,
-              (int)(path_end - search_ctx->ffsc_start_dir),
-              search_ctx->ffsc_stopdirs_v) == TRUE)
-        break;
-
-      /* cut of last dir */
-      while (path_end > search_ctx->ffsc_start_dir
-             && vim_ispathsep(*path_end))
-        path_end--;
-      while (path_end > search_ctx->ffsc_start_dir
-             && !vim_ispathsep(path_end[-1]))
-        path_end--;
-      *path_end = 0;
-      path_end--;
-
-      if (*search_ctx->ffsc_start_dir == 0)
-        break;
-
-      STRCPY(file_path, search_ctx->ffsc_start_dir);
-      add_pathsep(file_path);
-      STRCAT(file_path, search_ctx->ffsc_fix_path);
-
-      /* create a new stack entry */
-      sptr = ff_create_stack_element(file_path,
-          search_ctx->ffsc_wc_path, search_ctx->ffsc_level, 0);
-      if (sptr == NULL)
-        break;
-      ff_push(search_ctx, sptr);
-    } else
-      break;
-  }
-
-  vim_free(file_path);
-  return NULL;
-}
-
-/*
- * Free the list of lists of visited files and directories
- * Can handle it if the passed search_context is NULL;
- */
-void vim_findfile_free_visited(void *search_ctx_arg)
-{
-  ff_search_ctx_T *search_ctx;
-
-  if (search_ctx_arg == NULL)
-    return;
-
-  search_ctx = (ff_search_ctx_T *)search_ctx_arg;
-  vim_findfile_free_visited_list(&search_ctx->ffsc_visited_lists_list);
-  vim_findfile_free_visited_list(&search_ctx->ffsc_dir_visited_lists_list);
-}
-
-static void vim_findfile_free_visited_list(ff_visited_list_hdr_T **list_headp)
-{
-  ff_visited_list_hdr_T *vp;
-
-  while (*list_headp != NULL) {
-    vp = (*list_headp)->ffvl_next;
-    ff_free_visited_list((*list_headp)->ffvl_visited_list);
-
-    vim_free((*list_headp)->ffvl_filename);
-    vim_free(*list_headp);
-    *list_headp = vp;
-  }
-  *list_headp = NULL;
-}
-
-static void ff_free_visited_list(ff_visited_T *vl)
-{
-  ff_visited_T *vp;
-
-  while (vl != NULL) {
-    vp = vl->ffv_next;
-    vim_free(vl->ffv_wc_path);
-    vim_free(vl);
-    vl = vp;
-  }
-  vl = NULL;
-}
-
-/*
- * Returns the already visited list for the given filename. If none is found it
- * allocates a new one.
- */
-static ff_visited_list_hdr_T *ff_get_visited_list(char_u *filename, ff_visited_list_hdr_T **list_headp)
-{
-  ff_visited_list_hdr_T  *retptr = NULL;
-
-  /* check if a visited list for the given filename exists */
-  if (*list_headp != NULL) {
-    retptr = *list_headp;
-    while (retptr != NULL) {
-      if (fnamecmp(filename, retptr->ffvl_filename) == 0) {
-#ifdef FF_VERBOSE
-        if (p_verbose >= 5) {
-          verbose_enter_scroll();
-          smsg((char_u *)"ff_get_visited_list: FOUND list for %s",
-              filename);
-          /* don't overwrite this either */
-          msg_puts((char_u *)"\n");
-          verbose_leave_scroll();
-        }
-#endif
-        return retptr;
-      }
-      retptr = retptr->ffvl_next;
-    }
-  }
-
-#ifdef FF_VERBOSE
-  if (p_verbose >= 5) {
-    verbose_enter_scroll();
-    smsg((char_u *)"ff_get_visited_list: new list for %s", filename);
-    /* don't overwrite this either */
-    msg_puts((char_u *)"\n");
-    verbose_leave_scroll();
-  }
-#endif
-
-  /*
-   * if we reach this we didn't find a list and we have to allocate new list
-   */
-  retptr = (ff_visited_list_hdr_T*)alloc((unsigned)sizeof(*retptr));
-  if (retptr == NULL)
-    return NULL;
-
-  retptr->ffvl_visited_list = NULL;
-  retptr->ffvl_filename = vim_strsave(filename);
-  if (retptr->ffvl_filename == NULL) {
-    vim_free(retptr);
-    return NULL;
-  }
-  retptr->ffvl_next = *list_headp;
-  *list_headp = retptr;
-
-  return retptr;
-}
-
-/*
- * check if two wildcard paths are equal. Returns TRUE or FALSE.
- * They are equal if:
- *  - both paths are NULL
- *  - they have the same length
- *  - char by char comparison is OK
- *  - the only differences are in the counters behind a '**', so
- *    '**\20' is equal to '**\24'
- */
-static int ff_wc_equal(char_u *s1, char_u *s2)
-{
-  int i;
-  int prev1 = NUL;
-  int prev2 = NUL;
-
-  if (s1 == s2)
-    return TRUE;
-
-  if (s1 == NULL || s2 == NULL)
-    return FALSE;
-
-  if (STRLEN(s1) != STRLEN(s2))
-    return FAIL;
-
-  for (i = 0; s1[i] != NUL && s2[i] != NUL; i += MB_PTR2LEN(s1 + i)) {
-    int c1 = PTR2CHAR(s1 + i);
-    int c2 = PTR2CHAR(s2 + i);
-
-    if ((p_fic ? MB_TOLOWER(c1) != MB_TOLOWER(c2) : c1 != c2)
-        && (prev1 != '*' || prev2 != '*'))
-      return FAIL;
-    prev2 = prev1;
-    prev1 = c1;
-  }
-  return TRUE;
-}
-
-/*
- * maintains the list of already visited files and dirs
- * returns FAIL if the given file/dir is already in the list
- * returns OK if it is newly added
- *
- * TODO: What to do on memory allocation problems?
- *	 -> return TRUE - Better the file is found several times instead of
- *	    never.
- */
-static int ff_check_visited(ff_visited_T **visited_list, char_u *fname, char_u *wc_path)
-{
-  ff_visited_T        *vp;
-#ifdef UNIX
-  struct stat st;
-  int url = FALSE;
-#endif
-
-  /* For an URL we only compare the name, otherwise we compare the
-   * device/inode (unix) or the full path name (not Unix). */
-  if (path_with_url(fname)) {
-    vim_strncpy(ff_expand_buffer, fname, MAXPATHL - 1);
-#ifdef UNIX
-    url = TRUE;
-#endif
-  } else   {
-    ff_expand_buffer[0] = NUL;
-#ifdef UNIX
-    if (mch_stat((char *)fname, &st) < 0)
-#else
-    if (vim_FullName(fname, ff_expand_buffer, MAXPATHL, TRUE) == FAIL)
-#endif
-      return FAIL;
-  }
-
-  /* check against list of already visited files */
-  for (vp = *visited_list; vp != NULL; vp = vp->ffv_next) {
-    if (
-#ifdef UNIX
-      !url ? (vp->ffv_dev_valid && vp->ffv_dev == st.st_dev
-              && vp->ffv_ino == st.st_ino)
-      :
-#endif
-      fnamecmp(vp->ffv_fname, ff_expand_buffer) == 0
-      ) {
-      /* are the wildcard parts equal */
-      if (ff_wc_equal(vp->ffv_wc_path, wc_path) == TRUE)
-        /* already visited */
-        return FAIL;
-    }
-  }
-
-  /*
-   * New file/dir.  Add it to the list of visited files/dirs.
-   */
-  vp = (ff_visited_T *)alloc((unsigned)(sizeof(ff_visited_T)
-                                        + STRLEN(ff_expand_buffer)));
-
-  if (vp != NULL) {
-#ifdef UNIX
-    if (!url) {
-      vp->ffv_dev_valid = TRUE;
-      vp->ffv_ino = st.st_ino;
-      vp->ffv_dev = st.st_dev;
-      vp->ffv_fname[0] = NUL;
-    } else   {
-      vp->ffv_dev_valid = FALSE;
-#endif
-    STRCPY(vp->ffv_fname, ff_expand_buffer);
-#ifdef UNIX
-  }
-#endif
-    if (wc_path != NULL)
-      vp->ffv_wc_path = vim_strsave(wc_path);
-    else
-      vp->ffv_wc_path = NULL;
-
-    vp->ffv_next = *visited_list;
-    *visited_list = vp;
-  }
-
-  return OK;
-}
-
-/*
- * create stack element from given path pieces
- */
-static ff_stack_T *ff_create_stack_element(char_u *fix_part, char_u *wc_part, int level, int star_star_empty)
-{
-  ff_stack_T  *new;
-
-  new = (ff_stack_T *)alloc((unsigned)sizeof(ff_stack_T));
-  if (new == NULL)
-    return NULL;
-
-  new->ffs_prev          = NULL;
-  new->ffs_filearray     = NULL;
-  new->ffs_filearray_size = 0;
-  new->ffs_filearray_cur  = 0;
-  new->ffs_stage         = 0;
-  new->ffs_level         = level;
-  new->ffs_star_star_empty = star_star_empty;;
-
-  /* the following saves NULL pointer checks in vim_findfile */
-  if (fix_part == NULL)
-    fix_part = (char_u *)"";
-  new->ffs_fix_path = vim_strsave(fix_part);
-
-  if (wc_part == NULL)
-    wc_part  = (char_u *)"";
-  new->ffs_wc_path = vim_strsave(wc_part);
-
-  if (new->ffs_fix_path == NULL
-      || new->ffs_wc_path == NULL
-      ) {
-    ff_free_stack_element(new);
-    new = NULL;
-  }
-
-  return new;
-}
-
-/*
- * Push a dir on the directory stack.
- */
-static void ff_push(ff_search_ctx_T *search_ctx, ff_stack_T *stack_ptr)
-{
-  /* check for NULL pointer, not to return an error to the user, but
-   * to prevent a crash */
-  if (stack_ptr != NULL) {
-    stack_ptr->ffs_prev = search_ctx->ffsc_stack_ptr;
-    search_ctx->ffsc_stack_ptr = stack_ptr;
-  }
-}
-
-/*
- * Pop a dir from the directory stack.
- * Returns NULL if stack is empty.
- */
-static ff_stack_T *ff_pop(ff_search_ctx_T *search_ctx)
-{
-  ff_stack_T  *sptr;
-
-  sptr = search_ctx->ffsc_stack_ptr;
-  if (search_ctx->ffsc_stack_ptr != NULL)
-    search_ctx->ffsc_stack_ptr = search_ctx->ffsc_stack_ptr->ffs_prev;
-
-  return sptr;
-}
-
-/*
- * free the given stack element
- */
-static void ff_free_stack_element(ff_stack_T *stack_ptr)
-{
-  /* vim_free handles possible NULL pointers */
-  vim_free(stack_ptr->ffs_fix_path);
-  vim_free(stack_ptr->ffs_wc_path);
-
-  if (stack_ptr->ffs_filearray != NULL)
-    FreeWild(stack_ptr->ffs_filearray_size, stack_ptr->ffs_filearray);
-
-  vim_free(stack_ptr);
-}
-
-/*
- * Clear the search context, but NOT the visited list.
- */
-static void ff_clear(ff_search_ctx_T *search_ctx)
-{
-  ff_stack_T   *sptr;
-
-  /* clear up stack */
-  while ((sptr = ff_pop(search_ctx)) != NULL)
-    ff_free_stack_element(sptr);
-
-  vim_free(search_ctx->ffsc_file_to_search);
-  vim_free(search_ctx->ffsc_start_dir);
-  vim_free(search_ctx->ffsc_fix_path);
-  vim_free(search_ctx->ffsc_wc_path);
-
-  if (search_ctx->ffsc_stopdirs_v != NULL) {
-    int i = 0;
-
-    while (search_ctx->ffsc_stopdirs_v[i] != NULL) {
-      vim_free(search_ctx->ffsc_stopdirs_v[i]);
-      i++;
-    }
-    vim_free(search_ctx->ffsc_stopdirs_v);
-  }
-  search_ctx->ffsc_stopdirs_v = NULL;
-
-  /* reset everything */
-  search_ctx->ffsc_file_to_search = NULL;
-  search_ctx->ffsc_start_dir = NULL;
-  search_ctx->ffsc_fix_path = NULL;
-  search_ctx->ffsc_wc_path = NULL;
-  search_ctx->ffsc_level = 0;
-}
-
-/*
- * check if the given path is in the stopdirs
- * returns TRUE if yes else FALSE
- */
-static int ff_path_in_stoplist(char_u *path, int path_len, char_u **stopdirs_v)
-{
-  int i = 0;
-
-  /* eat up trailing path separators, except the first */
-  while (path_len > 1 && vim_ispathsep(path[path_len - 1]))
-    path_len--;
-
-  /* if no path consider it as match */
-  if (path_len == 0)
-    return TRUE;
-
-  for (i = 0; stopdirs_v[i] != NULL; i++) {
-    if ((int)STRLEN(stopdirs_v[i]) > path_len) {
-      /* match for parent directory. So '/home' also matches
-       * '/home/rks'. Check for PATHSEP in stopdirs_v[i], else
-       * '/home/r' would also match '/home/rks'
-       */
-      if (fnamencmp(stopdirs_v[i], path, path_len) == 0
-          && vim_ispathsep(stopdirs_v[i][path_len]))
-        return TRUE;
-    } else   {
-      if (fnamecmp(stopdirs_v[i], path) == 0)
-        return TRUE;
-    }
-  }
-  return FALSE;
-}
-
-/*
- * Find the file name "ptr[len]" in the path.  Also finds directory names.
- *
- * On the first call set the parameter 'first' to TRUE to initialize
- * the search.  For repeating calls to FALSE.
- *
- * Repeating calls will return other files called 'ptr[len]' from the path.
- *
- * Only on the first call 'ptr' and 'len' are used.  For repeating calls they
- * don't need valid values.
- *
- * If nothing found on the first call the option FNAME_MESS will issue the
- * message:
- *	    'Can't find file "<file>" in path'
- * On repeating calls:
- *	    'No more file "<file>" found in path'
- *
- * options:
- * FNAME_MESS	    give error message when not found
- *
- * Uses NameBuff[]!
- *
- * Returns an allocated string for the file name.  NULL for error.
- *
- */
-char_u *
-find_file_in_path (
-    char_u *ptr,               /* file name */
-    int len,                        /* length of file name */
-    int options,
-    int first,                      /* use count'th matching file name */
-    char_u *rel_fname         /* file name searching relative to */
-)
-{
-  return find_file_in_path_option(ptr, len, options, first,
-      *curbuf->b_p_path == NUL ? p_path : curbuf->b_p_path,
-      FINDFILE_BOTH, rel_fname, curbuf->b_p_sua);
-}
-
-static char_u   *ff_file_to_find = NULL;
-static void     *fdip_search_ctx = NULL;
-
-#if defined(EXITFREE)
-static void free_findfile(void)                 {
-  vim_free(ff_file_to_find);
-  vim_findfile_cleanup(fdip_search_ctx);
-}
-
-#endif
-
-/*
- * Find the directory name "ptr[len]" in the path.
- *
- * options:
- * FNAME_MESS	    give error message when not found
- *
- * Uses NameBuff[]!
- *
- * Returns an allocated string for the file name.  NULL for error.
- */
-char_u *
-find_directory_in_path (
-    char_u *ptr,               /* file name */
-    int len,                        /* length of file name */
-    int options,
-    char_u *rel_fname         /* file name searching relative to */
-)
-{
-  return find_file_in_path_option(ptr, len, options, TRUE, p_cdpath,
-      FINDFILE_DIR, rel_fname, (char_u *)"");
-}
-
-char_u *
-find_file_in_path_option (
-    char_u *ptr,               /* file name */
-    int len,                        /* length of file name */
-    int options,
-    int first,                      /* use count'th matching file name */
-    char_u *path_option,       /* p_path or p_cdpath */
-    int find_what,                  /* FINDFILE_FILE, _DIR or _BOTH */
-    char_u *rel_fname,         /* file name we are looking relative to. */
-    char_u *suffixes          /* list of suffixes, 'suffixesadd' option */
-)
-{
-  static char_u       *dir;
-  static int did_findfile_init = FALSE;
-  char_u save_char;
-  char_u              *file_name = NULL;
-  char_u              *buf = NULL;
-  int rel_to_curdir;
-
-  if (first == TRUE) {
-    /* copy file name into NameBuff, expanding environment variables */
-    save_char = ptr[len];
-    ptr[len] = NUL;
-    expand_env(ptr, NameBuff, MAXPATHL);
-    ptr[len] = save_char;
-
-    vim_free(ff_file_to_find);
-    ff_file_to_find = vim_strsave(NameBuff);
-    if (ff_file_to_find == NULL) {      /* out of memory */
-      file_name = NULL;
-      goto theend;
-    }
-  }
-
-  rel_to_curdir = (ff_file_to_find[0] == '.'
-                   && (ff_file_to_find[1] == NUL
-                       || vim_ispathsep(ff_file_to_find[1])
-                       || (ff_file_to_find[1] == '.'
-                           && (ff_file_to_find[2] == NUL
-                               || vim_ispathsep(ff_file_to_find[2])))));
-  if (vim_isAbsName(ff_file_to_find)
-      /* "..", "../path", "." and "./path": don't use the path_option */
-      || rel_to_curdir
-      ) {
-    /*
-     * Absolute path, no need to use "path_option".
-     * If this is not a first call, return NULL.  We already returned a
-     * filename on the first call.
-     */
-    if (first == TRUE) {
-      int l;
-      int run;
-
-      if (path_with_url(ff_file_to_find)) {
-        file_name = vim_strsave(ff_file_to_find);
-        goto theend;
-      }
-
-      /* When FNAME_REL flag given first use the directory of the file.
-       * Otherwise or when this fails use the current directory. */
-      for (run = 1; run <= 2; ++run) {
-        l = (int)STRLEN(ff_file_to_find);
-        if (run == 1
-            && rel_to_curdir
-            && (options & FNAME_REL)
-            && rel_fname != NULL
-            && STRLEN(rel_fname) + l < MAXPATHL) {
-          STRCPY(NameBuff, rel_fname);
-          STRCPY(gettail(NameBuff), ff_file_to_find);
-          l = (int)STRLEN(NameBuff);
-        } else   {
-          STRCPY(NameBuff, ff_file_to_find);
-          run = 2;
-        }
-
-        /* When the file doesn't exist, try adding parts of
-         * 'suffixesadd'. */
-        buf = suffixes;
-        for (;; ) {
-          if (
-            (mch_getperm(NameBuff) >= 0
-             && (find_what == FINDFILE_BOTH
-                 || ((find_what == FINDFILE_DIR)
-                     == mch_isdir(NameBuff))))) {
-            file_name = vim_strsave(NameBuff);
-            goto theend;
-          }
-          if (*buf == NUL)
-            break;
-          copy_option_part(&buf, NameBuff + l, MAXPATHL - l, ",");
-        }
-      }
-    }
-  } else   {
-    /*
-     * Loop over all paths in the 'path' or 'cdpath' option.
-     * When "first" is set, first setup to the start of the option.
-     * Otherwise continue to find the next match.
-     */
-    if (first == TRUE) {
-      /* vim_findfile_free_visited can handle a possible NULL pointer */
-      vim_findfile_free_visited(fdip_search_ctx);
-      dir = path_option;
-      did_findfile_init = FALSE;
-    }
-
-    for (;; ) {
-      if (did_findfile_init) {
-        file_name = vim_findfile(fdip_search_ctx);
-        if (file_name != NULL)
-          break;
-
-        did_findfile_init = FALSE;
-      } else   {
-        char_u  *r_ptr;
-
-        if (dir == NULL || *dir == NUL) {
-          /* We searched all paths of the option, now we can
-           * free the search context. */
-          vim_findfile_cleanup(fdip_search_ctx);
-          fdip_search_ctx = NULL;
-          break;
-        }
-
-        if ((buf = alloc((int)(MAXPATHL))) == NULL)
-          break;
-
-        /* copy next path */
-        buf[0] = 0;
-        copy_option_part(&dir, buf, MAXPATHL, " ,");
-
-        /* get the stopdir string */
-        r_ptr = vim_findfile_stopdir(buf);
-        fdip_search_ctx = vim_findfile_init(buf, ff_file_to_find,
-            r_ptr, 100, FALSE, find_what,
-            fdip_search_ctx, FALSE, rel_fname);
-        if (fdip_search_ctx != NULL)
-          did_findfile_init = TRUE;
-        vim_free(buf);
-      }
-    }
-  }
-  if (file_name == NULL && (options & FNAME_MESS)) {
-    if (first == TRUE) {
-      if (find_what == FINDFILE_DIR)
-        EMSG2(_("E344: Can't find directory \"%s\" in cdpath"),
-            ff_file_to_find);
-      else
-        EMSG2(_("E345: Can't find file \"%s\" in path"),
-            ff_file_to_find);
-    } else   {
-      if (find_what == FINDFILE_DIR)
-        EMSG2(_("E346: No more directory \"%s\" found in cdpath"),
-            ff_file_to_find);
-      else
-        EMSG2(_("E347: No more file \"%s\" found in path"),
-            ff_file_to_find);
-    }
-  }
-
-theend:
-  return file_name;
-}
-
-
 /*
  * Change directory to "new_dir".  If FEAT_SEARCHPATH is defined, search
  * 'cdpath' for relative directory names, otherwise just mch_chdir().