vim-patch:7.4.186

Problem:    Insert in Visual mode sometimes gives incorrect results.
            (Dominique Pelle)
Solution:   Remember the original insert start position. (Christian Brabandt,
            Dominique Pelle)

https://code.google.com/p/vim/source/detail?r=4d12112c5efae071aecbeed1a7196f18950457b3

src/buffer_defs.h

@@ -492,6 +492,7 @@ struct file_buffer {
    * start and end of an operator, also used for '[ and ']
    */
   pos_T b_op_start;
+  pos_T b_op_start_orig;  // used for Insstart_orig
   pos_T b_op_end;
 
   int b_marks_read;             /* Have we read viminfo marks yet? */

src/edit.c

@@ -284,6 +284,7 @@ static char_u *do_insert_char_pre(int c);
 
 static colnr_T Insstart_textlen;        /* length of line when insert started */
 static colnr_T Insstart_blank_vcol;     /* vcol for first inserted blank */
+static bool update_Insstart_orig = true; /* set Insstart_orig to Insstart */
 
 static char_u   *last_insert = NULL;    /* the text of the previous insert,
                                            K_SPECIAL and CSI are escaped */
@@ -353,6 +354,9 @@ edit (
    * error message */
   check_for_delay(TRUE);
 
+  // set Insstart_orig to Insstart
+  update_Insstart_orig = true;
+
 #ifdef HAVE_SANDBOX
   /* Don't allow inserting in the sandbox. */
   if (sandbox != 0) {
@@ -582,6 +586,10 @@ edit (
     if (arrow_used)         /* don't repeat insert when arrow key used */
       count = 0;
 
+    if (update_Insstart_orig) {
+      Insstart_orig = Insstart;
+    }
+
     if (stop_insert_mode) {
       /* ":stopinsert" used or 'insertmode' reset */
       count = 0;
@@ -5860,6 +5868,7 @@ stop_insert (
    * now in a different buffer. */
   if (end_insert_pos != NULL) {
     curbuf->b_op_start = Insstart;
+    curbuf->b_op_start_orig = Insstart_orig;
     curbuf->b_op_end = *end_insert_pos;
   }
 }
@@ -6944,6 +6953,7 @@ static void ins_ctrl_g(void)
 
     /* Need to reset Insstart, esp. because a BS that joins
      * a line to the previous one must save for undo. */
+    update_Insstart_orig = false;
     Insstart = curwin->w_cursor;
     break;
 

src/globals.h

@@ -585,6 +585,12 @@ EXTERN pos_T saved_cursor               /* w_cursor before formatting text. */
  */
 EXTERN pos_T Insstart;                  /* This is where the latest
                                          * insert/append mode started. */
+
+// This is where the latest insert/append mode started. In contrast to
+// Insstart, this won't be reset by certain keys and is needed for
+// op_insert(), to detect correctly where inserting by the user started.
+EXTERN pos_T Insstart_orig;
+
 /*
  * Stuff for VREPLACE mode.
  */

src/ops.c

@@ -2142,16 +2142,16 @@ void op_insert(oparg_T *oap, long count1)
 
     /* The user may have moved the cursor before inserting something, try
      * to adjust the block for that. */
-    if (oap->start.lnum == curbuf->b_op_start.lnum && !bd.is_MAX) {
+    if (oap->start.lnum == curbuf->b_op_start_orig.lnum && !bd.is_MAX) {
       if (oap->op_type == OP_INSERT
-          && oap->start.col != curbuf->b_op_start.col) {
-        oap->start.col = curbuf->b_op_start.col;
+          && oap->start.col != curbuf->b_op_start_orig.col) {
+        oap->start.col = curbuf->b_op_start_orig.col;
         pre_textlen -= getviscol2(oap->start.col, oap->start.coladd)
                        - oap->start_vcol;
         oap->start_vcol = getviscol2(oap->start.col, oap->start.coladd);
       } else if (oap->op_type == OP_APPEND
-                 && oap->end.col >= curbuf->b_op_start.col) {
-        oap->start.col = curbuf->b_op_start.col;
+		 && oap->end.col >= curbuf->b_op_start_orig.col) {
+        oap->start.col = curbuf->b_op_start_orig.col;
         /* reset pre_textlen to the value of OP_INSERT */
         pre_textlen += bd.textlen;
         pre_textlen -= getviscol2(oap->start.col, oap->start.coladd)

src/version.c

@@ -202,6 +202,8 @@ static char *(features[]) = {
 
 static int included_patches[] = {
   // Add new patch number below this line
+  186,
+  //185,
   184,
   //183,
   //182,