Patch 8.1.2268
Problem:    Spell file flag zero is not recognized.
Solution:   Use -1 as an error value, so that zero can be used as a valid flag
            number.
Files:      src/spellfile.c, src/testdir/test_spell.vim


*** ../vim-8.1.2267/src/spellfile.c     2019-08-11 22:50:53.828345974 +0200
--- src/spellfile.c     2019-11-07 20:47:49.297406026 +0100
***************
*** 260,265 ****
--- 260,267 ----
                                 * follow; never used in prefix tree */
  #define BY_SPECIAL  BY_FLAGS2 /* highest special byte value */
  
+ #define ZERO_FLAG     65009   // used when flag is zero: "0"
+ 
  /* Flags used in .spl file for soundsalike flags. */
  #define SAL_F0LLOWUP          1
  #define SAL_COLLAPSE          2
***************
*** 3182,3187 ****
--- 3184,3190 ----
  
  /*
   * Get one affix name from "*pp" and advance the pointer.
+  * Returns ZERO_FLAG for "0".
   * Returns zero for an error, still advances the pointer then.
   */
      static unsigned
***************
*** 3197,3202 ****
--- 3200,3207 ----
            return 0;
        }
        res = getdigits(pp);
+       if (res == 0)
+           res = ZERO_FLAG;
      }
      else
      {
***************
*** 3343,3348 ****
--- 3348,3355 ----
            for (p = afflist; *p != NUL; )
            {
                n = getdigits(&p);
+               if (n == 0)
+                   n = ZERO_FLAG;
                if (n == flag)
                    return TRUE;
                if (*p != NUL)  /* skip over comma */
*** ../vim-8.1.2267/src/testdir/test_spell.vim  2019-10-18 20:36:48.753171724 
+0200
--- src/testdir/test_spell.vim  2019-11-07 20:47:10.857555418 +0100
***************
*** 290,298 ****
          \ ])
  
    call LoadAffAndDic(g:test_data_aff7, g:test_data_dic7)
!   call RunGoodBad("meea1 meea\xE9 bar prebar barmeat prebarmeat  leadprebar 
lead tail leadtail  leadmiddletail",
          \ "bad: mee meea2 prabar probarmaat middle leadmiddle middletail 
taillead leadprobar",
!         \ ["bar", "barmeat", "lead", "meea1", "meea\xE9", "prebar", 
"prebarmeat", "tail"],
          \ [
          \   ["bad", ["bar", "lead", "tail"]],
          \   ["mee", ["meea1", "meea\xE9", "bar"]],
--- 290,298 ----
          \ ])
  
    call LoadAffAndDic(g:test_data_aff7, g:test_data_dic7)
!   call RunGoodBad("meea1 meezero meea\xE9 bar prebar barmeat prebarmeat  
leadprebar lead tail leadtail  leadmiddletail",
          \ "bad: mee meea2 prabar probarmaat middle leadmiddle middletail 
taillead leadprobar",
!         \ ["bar", "barmeat", "lead", "meea1", "meea\xE9", "meezero", 
"prebar", "prebarmeat", "tail"],
          \ [
          \   ["bad", ["bar", "lead", "tail"]],
          \   ["mee", ["meea1", "meea\xE9", "bar"]],
***************
*** 746,751 ****
--- 746,754 ----
        \"SFX 61003 Y 1",
        \"SFX 61003 0 meat .",
        \"",
+       \"SFX 0 Y 1",
+       \"SFX 0 0 zero .",
+       \"",
        \"SFX 391 Y 1",
        \"SFX 391 0 a1 .",
        \"",
***************
*** 757,763 ****
        \ ]
  let g:test_data_dic7 = [
        \"1234",
!       \"mee/391,111,9999",
        \"bar/17,61003,123",
        \"lead/2",
        \"tail/123",
--- 760,766 ----
        \ ]
  let g:test_data_dic7 = [
        \"1234",
!       \"mee/0,391,111,9999",
        \"bar/17,61003,123",
        \"lead/2",
        \"tail/123",
*** ../vim-8.1.2267/src/version.c       2019-11-06 23:26:16.973911982 +0100
--- src/version.c       2019-11-07 20:33:35.432656722 +0100
***************
*** 743,744 ****
--- 743,746 ----
  {   /* Add new patch number below this line */
+ /**/
+     2268,
  /**/

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