vim-patch:7.4.213

Problem:    It's not possible to open a new buffer without creating a swap
            file.
Solution:   Add the ":noswapfile" modifier. (Christian Brabandt)

https://code.google.com/p/vim/source/detail?r=e25a04c1c515e6eb32197291472f89bcadfabf89

src/ex_cmds_defs.h

@@ -639,6 +639,8 @@ enum CMD_index
       EXTRA|TRLBAR|NOTRLCOM|USECTRLV|CMDWIN),
   EX(CMD_noremenu,        "noremenu",     ex_menu,
       RANGE|NOTADR|ZEROR|BANG|EXTRA|TRLBAR|NOTRLCOM|USECTRLV|CMDWIN),
+  EX(CMD_noswapfile,      "noswapfile",   ex_wrongmodifier,
+      NEEDARG|EXTRA|NOTRLCOM),
   EX(CMD_normal,          "normal",       ex_normal,
       RANGE|BANG|EXTRA|NEEDARG|NOTRLCOM|USECTRLV|SBOXOK|CMDWIN),
   EX(CMD_number,          "number",       ex_print,
@@ -1183,6 +1185,7 @@ typedef struct {
   int keepjumps;                        /* TRUE when ":keepjumps" was used */
   int lockmarks;                        /* TRUE when ":lockmarks" was used */
   int keeppatterns;                     /* TRUE when ":keeppatterns" was used */
+  bool noswapfile;                      /* true when ":noswapfile" was used */
   char_u      *save_ei;                 /* saved value of 'eventignore' */
 } cmdmod_T;
 

src/ex_docmd.c

@@ -1400,16 +1400,22 @@ void                *cookie;                    /*argument for fgetline() */
       cmdmod.split |= WSP_ABOVE;
       continue;
 
-    case 'n':   if (!checkforcmd(&ea.cmd, "noautocmd", 3))
-        break;
+    case 'n':
+      if (checkforcmd(&ea.cmd, "noautocmd", 3)) {
         if (cmdmod.save_ei == NULL) {
           /* Set 'eventignore' to "all". Restore the
            * existing option value later. */
           cmdmod.save_ei = vim_strsave(p_ei);
-        set_string_option_direct((char_u *)"ei", -1,
-            (char_u *)"all", OPT_FREE, SID_NONE);
+          set_string_option_direct(
+            (char_u *)"ei", -1, (char_u *)"all", OPT_FREE, SID_NONE);
         }
         continue;
+      }
+      if (!checkforcmd(&ea.cmd, "noswapfile", 6)) {
+        break;
+      }
+      cmdmod.noswapfile = true;
+      continue;
 
     case 'r':   if (!checkforcmd(&ea.cmd, "rightbelow", 6))
         break;
@@ -1991,6 +1997,8 @@ void                *cookie;                    /*argument for fgetline() */
     case CMD_let:
     case CMD_lockmarks:
     case CMD_match:
+    case CMD_noautocmd:
+    case CMD_noswapfile:
     case CMD_psearch:
     case CMD_return:
     case CMD_rightbelow:
@@ -2414,6 +2422,7 @@ static struct cmdmod {
   {"leftabove", 5, FALSE},
   {"lockmarks", 3, FALSE},
   {"noautocmd", 3, FALSE},
+  {"noswapfile", 3, FALSE},
   {"rightbelow", 6, FALSE},
   {"sandbox", 3, FALSE},
   {"silent", 3, FALSE},
@@ -2851,6 +2860,8 @@ set_one_cmd_context (
   case CMD_keeppatterns:
   case CMD_leftabove:
   case CMD_lockmarks:
+  case CMD_noautocmd:
+  case CMD_noswapfile:
   case CMD_rightbelow:
   case CMD_sandbox:
   case CMD_silent:

src/memline.c

@@ -296,6 +296,10 @@ int ml_open(buf_T *buf)
   buf->b_ml.ml_line_lnum = 0;   /* no cached line */
   buf->b_ml.ml_chunksize = NULL;
 
+  if (cmdmod.noswapfile) {
+    buf->b_p_swf = FALSE;
+  }
+
   /*
    * When 'updatecount' is non-zero swap file may be opened later.
    */
@@ -563,8 +567,9 @@ void ml_setname(buf_T *buf)
      * When 'updatecount' is 0 and 'noswapfile' there is no swap file.
      * For help files we will make a swap file now.
      */
-    if (p_uc != 0)
+    if (p_uc != 0 && !cmdmod.noswapfile) {
       ml_open_file(buf); /* create a swap file */
+    }
     return;
   }
 
@@ -652,8 +657,9 @@ void ml_open_file(buf_T *buf)
   char_u      *dirp;
 
   mfp = buf->b_ml.ml_mfp;
-  if (mfp == NULL || mfp->mf_fd >= 0 || !buf->b_p_swf)
+  if (mfp == NULL || mfp->mf_fd >= 0 || !buf->b_p_swf || cmdmod.noswapfile) {
     return; /* nothing to do */
+  }
 
   /* For a spell buffer use a temp file name. */
   if (buf->b_spell) {

src/version.c

@@ -248,7 +248,7 @@ static int included_patches[] = {
   //216,
   //215,
   //214,
-  //213,
+  213,
   //212,
   //211,
   210,