Remove the code related to the shortname option

7 files changed, 19 insertions, 290 deletions

diff --git a/src/buffer.c b/src/buffer.c
index f672938077..35d5582340 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -466,7 +466,6 @@ void buf_clear_file(buf_T *buf)
 {
   buf->b_ml.ml_line_count = 1;
   unchanged(buf, TRUE);
-  buf->b_shortname = FALSE;
   buf->b_p_eol = TRUE;
   buf->b_start_eol = TRUE;
   buf->b_p_bomb = FALSE;
@@ -2289,8 +2288,6 @@ setfname (
   }
 #endif
 
-  buf->b_shortname = FALSE;
-
   buf_name_changed(buf);
   return OK;
 }
diff --git a/src/buffer_defs.h b/src/buffer_defs.h
index cbc8ab148c..fd28368b4d 100644
--- a/src/buffer_defs.h
+++ b/src/buffer_defs.h
@@ -596,7 +596,6 @@ struct file_buffer {
   char_u      *b_p_qe;          /* 'quoteescape' */
   int b_p_ro;                   /* 'readonly' */
   long b_p_sw;                  /* 'shiftwidth' */
-  int b_p_sn;                   /* 'shortname' */
   int b_p_si;                   /* 'smartindent' */
   long b_p_sts;                 /* 'softtabstop' */
   long b_p_sts_nopaste;          /* b_p_sts saved for paste mode */
@@ -698,8 +697,6 @@ struct file_buffer {
                                    are not used!  Use the B_SPELL macro to
                                    access b_spell without #ifdef. */
 
-  int b_shortname;              /* this file has an 8.3 file name */
-
   synblock_T b_s;               /* Info related to syntax highlighting.  w_s
                                  * normally points to this, but some windows
                                  * may use a different synblock_T. */
diff --git a/src/ex_cmds.c b/src/ex_cmds.c
index c65ff6dbbf..77523a043f 100644
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -1510,7 +1510,6 @@ void write_viminfo(char_u *file, int forceit)
   mode_t umask_save;
 #endif
 #ifdef UNIX
-  int shortname = FALSE;                /* use 8.3 file name */
   struct stat st_old;           /* mch_stat() of existing viminfo file */
 #endif
 
@@ -1579,9 +1578,7 @@ void write_viminfo(char_u *file, int forceit)
       if (mch_stat((char *)tempname, &st_new) == 0) {
         /*
          * Try another name.  Change one character, just before
-         * the extension.  This should also work for an 8.3
-         * file name, when after adding the extension it still is
-         * the same file as the original.
+         * the extension.
          */
         wp = tempname + STRLEN(tempname) - 5;
         if (wp < path_tail(tempname))                 /* empty file name? */
diff --git a/src/fileio.c b/src/fileio.c
index acefdfa9c5..39fd97e21d 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -2997,9 +2997,6 @@ buf_write (
       struct stat st_new;
       char_u      *dirp;
       char_u      *rootname;
-#if defined(UNIX)
-      int did_set_shortname;
-#endif
 
       copybuf = verbose_try_malloc(BUFSIZE + 1);
       if (copybuf == NULL) {
@@ -3038,20 +3035,11 @@ buf_write (
           goto nobackup;
         }
 
-#if defined(UNIX)
-        did_set_shortname = FALSE;
-#endif
-
-        /*
-         * May try twice if 'shortname' not set.
-         */
-        for (;; ) {
+        {
           /*
            * Make backup file name.
            */
-          backup = buf_modname(
-              (buf->b_p_sn || buf->b_shortname),
-              rootname, backup_ext, FALSE);
+          backup = buf_modname(FALSE, rootname, backup_ext, FALSE);
           if (backup == NULL) {
             vim_free(rootname);
             some_error = TRUE;                          /* out of memory */
@@ -3065,27 +3053,14 @@ buf_write (
 #ifdef UNIX
             /*
              * Check if backup file is same as original file.
-             * May happen when modname() gave the same file back.
-             * E.g. silly link, or file name-length reached.
-             * If we don't check here, we either ruin the file
-             * when copying or erase it after writing. jw.
+             * May happen when modname() gave the same file back (e.g. silly
+             * link). If we don't check here, we either ruin the file when
+             * copying or erase it after writing.
              */
             if (st_new.st_dev == st_old.st_dev
                 && st_new.st_ino == st_old.st_ino) {
               vim_free(backup);
               backup = NULL;                    /* no backup file to delete */
-              /*
-               * may try again with 'shortname' set
-               */
-              if (!(buf->b_shortname || buf->b_p_sn)) {
-                buf->b_shortname = TRUE;
-                did_set_shortname = TRUE;
-                continue;
-              }
-              /* setting shortname didn't help */
-              if (did_set_shortname)
-                buf->b_shortname = FALSE;
-              break;
             }
 #endif
 
@@ -3110,7 +3085,6 @@ buf_write (
               }
             }
           }
-          break;
         }
         vim_free(rootname);
 
@@ -3241,9 +3215,7 @@ nobackup:
         if (rootname == NULL)
           backup = NULL;
         else {
-          backup = buf_modname(
-              (buf->b_p_sn || buf->b_shortname),
-              rootname, backup_ext, FALSE);
+          backup = buf_modname(FALSE, rootname, backup_ext, FALSE);
           vim_free(rootname);
         }
 
@@ -3880,9 +3852,7 @@ restore_backup:
    * the backup file our 'original' file.
    */
   if (*p_pm && dobackup) {
-    char *org = (char *)buf_modname(
-        (buf->b_p_sn || buf->b_shortname),
-        fname, p_pm, FALSE);
+    char *org = (char *)buf_modname(FALSE, fname, p_pm, FALSE);
 
     if (backup != NULL) {
       struct stat st;
@@ -4658,8 +4628,7 @@ void shorten_fnames(int force)
 }
 
 /*
- * add extension to file name - change path/fo.o.h to path/fo.o.h.ext or
- * fo_o_h.ext when shortname option set.
+ * add extension to file name - change path/fo.o.h to path/fo.o.h.ext
  *
  * Assumed that fname is a valid name found in the filesystem we assure that
  * the return value is a different name and ends in 'ext'.
@@ -4675,14 +4644,12 @@ modname (
     int prepend_dot                /* may prepend a '.' to file name */
 )
 {
-  return buf_modname(
-      (curbuf->b_p_sn || curbuf->b_shortname),
-      fname, ext, prepend_dot);
+  return buf_modname(FALSE, fname, ext, prepend_dot);
 }
 
 char_u *
 buf_modname (
-    int shortname,                  /* use 8.3 file name */
+    int shortname,           // use 8.3 file name, should always be FALSE now
     char_u *fname,
     char_u *ext,
     int prepend_dot                /* may prepend a '.' to file name */
@@ -4696,6 +4663,8 @@ buf_modname (
 
   extlen = (int)STRLEN(ext);
 
+  assert(!shortname);
+
   /*
    * If there is no file name we must get the name of the current directory
    * (we need the full path in case :cd is used).
@@ -4719,16 +4688,10 @@ buf_modname (
   }
 
   /*
-   * search backwards until we hit a '/', '\' or ':' replacing all '.'
-   * by '_' when shortname option set and ext starts with a dot.
-   * Then truncate what is after the '/', '\' or ':'.
+   * search backwards until we hit a '/', '\' or ':'.
+   * Then truncate what is after the '/', '\' or ':' to BASENAMELEN characters.
    */
   for (ptr = retval + fnamelen; ptr > retval; mb_ptr_back(retval, ptr)) {
-    if (*ext == '.'
-        && shortname
-        )
-      if (*ptr == '.')          /* replace '.' by '_' */
-        *ptr = '_';
     if (vim_ispathsep(*ptr)) {
       ++ptr;
       break;
@@ -4736,49 +4699,11 @@ buf_modname (
   }
 
   /* the file name has at most BASENAMELEN characters. */
-  if (STRLEN(ptr) > (unsigned)BASENAMELEN)
+  if (STRLEN(ptr) > BASENAMELEN)
     ptr[BASENAMELEN] = '\0';
 
   s = ptr + STRLEN(ptr);
 
-  /*
-   * For 8.3 file names we may have to reduce the length.
-   */
-  if (shortname)
-  {
-    /*
-     * If there is no file name, or the file name ends in '/', and the
-     * extension starts with '.', put a '_' before the dot, because just
-     * ".ext" is invalid.
-     */
-    if (fname == NULL || *fname == NUL
-        || vim_ispathsep(fname[STRLEN(fname) - 1])) {
-      if (*ext == '.')
-        *s++ = '_';
-    }
-    /*
-     * If the extension starts with '.', truncate the base name at 8
-     * characters
-     */
-    else if (*ext == '.') {
-      if ((size_t)(s - ptr) > (size_t)8) {
-        s = ptr + 8;
-        *s = '\0';
-      }
-    }
-    /*
-     * If the extension doesn't start with '.', and the file name
-     * doesn't have an extension yet, append a '.'
-     */
-    else if ((e = vim_strchr(ptr, '.')) == NULL)
-      *s++ = '.';
-    /*
-     * If the extension doesn't start with '.', and there already is an
-     * extension, it may need to be truncated
-     */
-    else if ((int)STRLEN(e) + extlen > 4)
-      s = e + 4 - extlen;
-  }
 #if defined(WIN3264)
   /*
    * If there is no file name, and the extension starts with '.', put a
@@ -4798,8 +4723,7 @@ buf_modname (
   /*
    * Prepend the dot.
    */
-  if (prepend_dot && !shortname && *(e = path_tail(retval)) != '.'
-      ) {
+  if (prepend_dot && *(e = path_tail(retval)) != '.') {
     STRMOVE(e + 1, e);
     *e = '.';
   }
diff --git a/src/memline.c b/src/memline.c
index 6db8a17579..0978e10cc1 100644
--- a/src/memline.c
+++ b/src/memline.c
@@ -1808,16 +1808,8 @@ static time_t swapfile_info(char_u *fname)
 static int recov_file_names(char_u **names, char_u *path, int prepend_dot)
 {
   int num_names;
-  /*
-   * (Win32 and Win64) never short names, but do prepend a dot.
-   * (Not MS-DOS or Win32 or Win64) maybe short name, maybe not: Try both.
-   * Only use the short name if it is different.
-   */
   char_u      *p;
   int i;
-  int shortname = curbuf->b_shortname;
-
-  curbuf->b_shortname = FALSE;
 
   num_names = 0;
 
@@ -1828,7 +1820,7 @@ static int recov_file_names(char_u **names, char_u *path, int prepend_dot)
   if (prepend_dot) {
     names[num_names] = modname(path, (char_u *)".sw?", TRUE);
     if (names[num_names] == NULL)
-      goto end;
+      return num_names;
     ++num_names;
   }
 
@@ -1847,30 +1839,6 @@ static int recov_file_names(char_u **names, char_u *path, int prepend_dot)
   } else
     ++num_names;
 
-  /*
-   * Also try with 'shortname' set, in case the file is on a DOS filesystem.
-   */
-  curbuf->b_shortname = TRUE;
-  names[num_names] = modname(path, (char_u *)".sw?", FALSE);
-  if (names[num_names] == NULL)
-    goto end;
-
-  /*
-   * Remove the one from 'shortname', if it's the same as with 'noshortname'.
-   */
-  p = names[num_names];
-  i = STRLEN(names[num_names]) - STRLEN(names[num_names - 1]);
-  if (i > 0)
-    p += i;             /* file name has been expanded to full path */
-  if (STRCMP(names[num_names - 1], p) == 0)
-    vim_free(names[num_names]);
-  else
-    ++num_names;
-
-end:
-  curbuf->b_shortname = shortname;
-
-
   return num_names;
 }
 
@@ -3404,7 +3372,7 @@ char_u *makeswapname(char_u *fname, char_u *ffname, buf_T *buf, char_u *dir_name
 #endif
 
   r = buf_modname(
-      (buf->b_p_sn || buf->b_shortname),
+      FALSE,
       fname_res,
       (char_u *)
       ".swp",
@@ -3574,26 +3542,8 @@ findswapname (
   char_u      *fname;
   int n;
   char_u      *dir_name;
-  int r;
   char_u      *buf_fname = buf->b_fname;
 
-#if !defined(UNIX)
-# define CREATE_DUMMY_FILE
-  FILE        *dummyfd = NULL;
-
-
-  /*
-   * If we start editing a new file, e.g. "test.doc", which resides on an
-   * MSDOS compatible filesystem, it is possible that the file
-   * "test.doc.swp" which we create will be exactly the same file. To avoid
-   * this problem we temporarily create "test.doc".  Don't do this when the
-   * check below for a 8.3 file name is used.
-   */
-  if (!(buf->b_p_sn || buf->b_shortname) && buf_fname != NULL
-      && !os_file_exists(buf_fname))
-    dummyfd = mch_fopen((char *)buf_fname, "w");
-#endif
-
   /*
    * Isolate a directory name from *dirp and put it in dir_name.
    * First allocate some memory to put the directory name in.
@@ -3617,89 +3567,6 @@ findswapname (
       fname = NULL;
       break;
     }
-#if defined(UNIX)
-    /*
-     * Some systems have a MS-DOS compatible filesystem that use 8.3 character
-     * file names. If this is the first try and the swap file name does not fit in
-     * 8.3, detect if this is the case, set shortname and try again.
-     */
-    if (fname[n - 2] == 'w' && fname[n - 1] == 'p'
-        && !(buf->b_p_sn || buf->b_shortname)) {
-      char_u          *tail;
-      char_u          *fname2;
-      struct stat s1, s2;
-      int f1, f2;
-      int created1 = FALSE, created2 = FALSE;
-      int same = FALSE;
-
-      /*
-       * Check if swapfile name does not fit in 8.3:
-       * It either contains two dots, is longer than 8 chars, or starts
-       * with a dot.
-       */
-      tail = path_tail(buf_fname);
-      if (       vim_strchr(tail, '.') != NULL
-                 || STRLEN(tail) > (size_t)8
-                 || *path_tail(fname) == '.') {
-        fname2 = alloc(n + 2);
-        STRCPY(fname2, fname);
-        /* if fname == "xx.xx.swp",	    fname2 = "xx.xx.swx"
-         * if fname == ".xx.swp",	    fname2 = ".xx.swpx"
-         * if fname == "123456789.swp", fname2 = "12345678x.swp"
-         */
-        if (vim_strchr(tail, '.') != NULL)
-          fname2[n - 1] = 'x';
-        else if (*path_tail(fname) == '.') {
-          fname2[n] = 'x';
-          fname2[n + 1] = NUL;
-        } else
-          fname2[n - 5] += 1;
-        /*
-         * may need to create the files to be able to use mch_stat()
-         */
-        f1 = mch_open((char *)fname, O_RDONLY, 0);
-        if (f1 < 0) {
-          f1 = mch_open_rw((char *)fname,
-              O_RDWR|O_CREAT|O_EXCL);
-          created1 = TRUE;
-        }
-        if (f1 >= 0) {
-          f2 = mch_open((char *)fname2, O_RDONLY, 0);
-          if (f2 < 0) {
-            f2 = mch_open_rw((char *)fname2,
-                O_RDWR|O_CREAT|O_EXCL);
-            created2 = TRUE;
-          }
-          if (f2 >= 0) {
-            /*
-             * Both files exist now. If mch_stat() returns the
-             * same device and inode they are the same file.
-             */
-            if (mch_fstat(f1, &s1) != -1
-                && mch_fstat(f2, &s2) != -1
-                && s1.st_dev == s2.st_dev
-                && s1.st_ino == s2.st_ino)
-              same = TRUE;
-            close(f2);
-            if (created2)
-              os_remove((char *)fname2);
-          }
-          close(f1);
-          if (created1) {
-            os_remove((char *)fname);
-          }
-        }
-        vim_free(fname2);
-        if (same) {
-          buf->b_shortname = TRUE;
-          vim_free(fname);
-          fname = makeswapname(buf_fname, buf->b_ffname,
-              buf, dir_name);
-          continue;                   /* try again with b_shortname set */
-        }
-      }
-    }
-#endif
     /*
      * check if the swapfile already exists
      */
@@ -3728,26 +3595,6 @@ findswapname (
      */
     if (fname[n - 2] == 'w' && fname[n - 1] == 'p') {   /* first try */
       /*
-       * on MS-DOS compatible filesystems (e.g. messydos) file.doc.swp
-       * and file.doc are the same file. To guess if this problem is
-       * present try if file.doc.swx exists. If it does, we set
-       * buf->b_shortname and try file_doc.swp (dots replaced by
-       * underscores for this file), and try again. If it doesn't we
-       * assume that "file.doc.swp" already exists.
-       */
-      if (!(buf->b_p_sn || buf->b_shortname)) {         /* not tried yet */
-        fname[n - 1] = 'x';
-        r = os_getperm(fname);                 /* try "file.swx" */
-        fname[n - 1] = 'p';
-        if (r >= 0) {                       /* "file.swx" seems to exist */
-          buf->b_shortname = TRUE;
-          vim_free(fname);
-          fname = makeswapname(buf_fname, buf->b_ffname,
-              buf, dir_name);
-          continue;                 /* try again with '.' replaced with '_' */
-        }
-      }
-      /*
        * If we get here the ".swp" file really exists.
        * Give an error message, unless recovering, no file name, we are
        * viewing a help file or when the path of the file is different
@@ -3811,20 +3658,6 @@ findswapname (
 #if defined(HAS_SWAP_EXISTS_ACTION)
           int choice = 0;
 #endif
-#ifdef CREATE_DUMMY_FILE
-          int did_use_dummy = FALSE;
-
-          /* Avoid getting a warning for the file being created
-           * outside of Vim, it was created at the start of this
-           * function.  Delete the file now, because Vim might exit
-           * here if the window is closed. */
-          if (dummyfd != NULL) {
-            fclose(dummyfd);
-            dummyfd = NULL;
-            os_remove(buf_fname);
-            did_use_dummy = TRUE;
-          }
-#endif
 
 #if defined(UNIX) && (defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG))
           process_still_running = FALSE;
@@ -3917,11 +3750,6 @@ findswapname (
               need_wait_return = TRUE;
           }
 
-#ifdef CREATE_DUMMY_FILE
-          /* Going to try another name, need the dummy file again. */
-          if (did_use_dummy)
-            dummyfd = mch_fopen((char *)buf_fname, "w");
-#endif
         }
       }
     }
@@ -3946,12 +3774,6 @@ findswapname (
   }
 
   vim_free(dir_name);
-#ifdef CREATE_DUMMY_FILE
-  if (dummyfd != NULL) {        /* file has been created temporarily */
-    fclose(dummyfd);
-    os_remove(buf_fname);
-  }
-#endif
   return fname;
 }
 
diff --git a/src/option.c b/src/option.c
index 94e81b1441..82de35125c 100644
--- a/src/option.c
+++ b/src/option.c
@@ -150,7 +150,6 @@
 # define PV_QE          OPT_BUF(BV_QE)
 #define PV_RO           OPT_BUF(BV_RO)
 # define PV_SI          OPT_BUF(BV_SI)
-# define PV_SN          OPT_BUF(BV_SN)
 # define PV_SMC         OPT_BUF(BV_SMC)
 # define PV_SYN         OPT_BUF(BV_SYN)
 # define PV_SPC         OPT_BUF(BV_SPC)
@@ -263,7 +262,6 @@ static int p_pi;
 static char_u   *p_qe;
 static int p_ro;
 static int p_si;
-static int p_sn;
 static long p_sts;
 static char_u   *p_sua;
 static long p_sw;
@@ -1414,9 +1412,6 @@ static struct vimoption
    (char_u *)&p_shm, PV_NONE,
    {(char_u *)"", (char_u *)"filnxtToO"}
    SCRIPTID_INIT},
-  {"shortname",   "sn",   P_BOOL|P_VI_DEF,
-   (char_u *)&p_sn, PV_SN,
-   {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
   {"showbreak",   "sbr",  P_STRING|P_VI_DEF|P_RALL,
    (char_u *)&p_sbr, PV_NONE,
    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
@@ -6777,7 +6772,6 @@ static char_u *get_varp(struct vimoption *p)
   case PV_QE:     return (char_u *)&(curbuf->b_p_qe);
   case PV_RO:     return (char_u *)&(curbuf->b_p_ro);
   case PV_SI:     return (char_u *)&(curbuf->b_p_si);
-  case PV_SN:     return (char_u *)&(curbuf->b_p_sn);
   case PV_STS:    return (char_u *)&(curbuf->b_p_sts);
   case PV_SUA:    return (char_u *)&(curbuf->b_p_sua);
   case PV_SWF:    return (char_u *)&(curbuf->b_p_swf);
@@ -7003,7 +6997,6 @@ void buf_copy_options(buf_T *buf, int flags)
       buf->b_p_ofu = vim_strsave(p_ofu);
       buf->b_p_sts = p_sts;
       buf->b_p_sts_nopaste = p_sts_nopaste;
-      buf->b_p_sn = p_sn;
       buf->b_p_com = vim_strsave(p_com);
       buf->b_p_cms = vim_strsave(p_cms);
       buf->b_p_fo = vim_strsave(p_fo);
diff --git a/src/option_defs.h b/src/option_defs.h
index 2935943cf2..72a5836b2d 100644
--- a/src/option_defs.h
+++ b/src/option_defs.h
@@ -691,7 +691,6 @@ enum {
   , BV_QE
   , BV_RO
   , BV_SI
-  , BV_SN
   , BV_SMC
   , BV_SYN
   , BV_SPC