public I8 PopUpReplaceSkipAllCancelEdit(I1 *msg)
{
  I8 i;
  Ltf *l=LtfNew;
  LtfPutS(l,msg);
  LtfPutS(l,"$$CM +LX, 2,4$$$$BT, \"REPLACE\",0$$");
  LtfPutS(l,"$$CM +LX, 22,0$$$$BT, \"SKIP\",1$$");
  LtfPutS(l,"$$CM +LX, 2,4$$$$BT, \"ALL\",2$$");
  LtfPutS(l,"$$CM +LX, 22,0$$$$BT, \"ABORT ALL\",3$$");
  LtfPutS(l,"$$CM +LX, 2,4$$$$BT, \"EDIT\",4$$");
  LtfPutS(l,"$$CM +LX, 22,0$$$$BT, \"ABORT FILE\",5$$");
  LtfPutS(l,"$$CM +LX, 2,4$$$$BT, \"SKIP FILE\",6$$");
  i=PopUpMenu(l);
  LtfDel(l);
  return i;
}



U8 GrepFile(I1 *pattern,I1 *name,U8 *flags,I1 *replace_text)
{
  BoolU4 first_on_line,write_this_file=FALSE,cont=!Bt(flags,FUf_CANCEL);
  I1 *src,*dst,*dst2,*name_buf=NULL;
  U8 ss_flags;
  Ltf *l=LtfRead(name, LTFF_PLAIN_TEXT_WITH_TABS | LTFF_NO_CURSOR);
  LtfEntry *cl;
  I8 i,j,plen,rlen,dlen;
  U8 cnt=0;

  ss_flags=(Bt(flags,FUf_IGNORE)) ? SS_IGNORE_CASE :0;
  if (Bt(flags,FUf_LABEL))
    ss_flags|=SS_WHOLE_LABELS;

  plen=StrLen(pattern);
  if (replace_text)
    rlen=StrLen(replace_text);
  cl=l->dummy.next;
  while (cl!=l && cont) {
    if (cl->btype==LTFT_TEXT) {
      src=cl->display;
      first_on_line=TRUE;
      while (src && cont) {
	if (src=SearchString(src,pattern,ss_flags)) {
	  cnt++;
	  if (first_on_line || Bt(flags,FUf_REPLACE)) {
	    first_on_line=FALSE;
	    PutFileLink(name,cl->y+1,TRUE);
	    name_buf=MSPrintF("%s,%d",name,cl->y+1);
  	    PrintF(" %s\r\n",cl->display);
	  }
	  if (Bt(flags,FUf_REPLACE)) {
	    if (Bt(flags,FUf_ALL))
	      i=2;
	    else {
	      i=PopUpReplaceSkipAllCancelEdit("");
	      if (i==3) {
		Bts(flags,FUf_CANCEL);
		cont=FALSE;
		write_this_file=FALSE;
	      } else if (i==2)
		Bts(flags,FUf_ALL);
	      else if (i==5) {
		cont=FALSE;
		write_this_file=FALSE;
	      } else if (i==6)
		cont=FALSE;
	    }
	    if (!i || i==2) {
	      dlen=StrLen(cl->display);
	      dst=MAlloc(dlen+1+rlen-plen);
	      dst2=dst;
	      j=src-cl->display;
	      for (i=0;i<j;i++)
		*dst++=cl->display[i];
	      for (i=0;i<rlen;i++)
		*dst++=replace_text[i];
	      src=dst;
	      for (i=j+plen;i<=dlen;i++)
		*dst++=cl->display[i];
	      Free(cl->display);
	      cl->display=dst2;
	      PrintF("%12s,%04X*%s\r\n",name,cl->y+1,dst2);
	      write_this_file=TRUE;
	    } else {
	      src++;
	      if (i==4) {
		Free(name_buf);
		name_buf=NewString(l->filename.name);
		l->flags&=~LTFF_NO_CURSOR;
		l->cur_entry=cl;
		l->cur_data_col=cl->min_col;
		LtfWrite(l);
		LtfDel(l);
		PrintF("Wrote:%s\r\n",name_buf);
		Edit(name_buf);
		l=LtfRead(name_buf, LTFF_PLAIN_TEXT_WITH_TABS);
		cl=l->cur_entry;
		if (cl->last!=l) cl=cl->last;
		src=NULL;
		write_this_file=FALSE;
	      }
	    }
	  } else
	    src++;
	  Free(name_buf);
	  name_buf=NULL;
	}
      }
    }
    cl=cl->next;
  }
  if (write_this_file) {
    LtfWrite(l);
    PrintF("Wrote:%s\r\n",l->filename.name);
  }
  LtfDel(l);
  return cnt;
}

U8 GrepList(I1 *pattern,LTDirEntry *tempm1,U8 *flags,I1 *replace_text)
{
  U8 cnt=0;
  LTDirEntry *tempm2;

  while (tempm1 && !Bt(flags,FUf_CANCEL)) {
    tempm2=tempm1->next;
    if (tempm1->attr & LT_ATTR_DIR) {
      if (tempm1->sub) {
	PrintF("%S %s\r\n","ST_SCANNING_DIRECTORY",tempm1->full_name);
	cnt+=GrepList(pattern,tempm1->sub,flags,replace_text);
      }
    } else
      cnt+=GrepFile(pattern,tempm1->full_name,flags,replace_text);
    DelLTDirEntry(tempm1);
    tempm1=tempm2;
  }
  return cnt;
}

public U8 Grep(I1 *pattern,I1 *wild=TEXT_FILE_MASK,I1 *flags="+r+i+l",I1 *replace_text=NULL)

//This does not do regular expressions--my bad
//Anyway, it's good for searching and replacing.
//Let's say it stands for global replace ;-)

//"+r"=recurse
//"+i"=ignore case
//"+l"=whole labels only.
//     This will check for a nonlabel character before
//     and after.  If you have a variable, "ll" and don't
//     want to match words like "will" and "wallow", you
//     set this flag and it will see that the characters
//     before or after "ll" are label characters.

{
  U8 cnt=0;
  FlagsStruct f;
  GetFFlags(&f,"ST_FILE_UTIL_FLAGS",flags);
  AssignBit(&f.on,FUf_REPLACE,replace_text);
  cnt+=GrepList(pattern,FindFiles(wild,&f.on),&f.on,replace_text);
  return cnt;
}

public U8 FileOccurrences(I1 *pattern,I1 *wild=TEXT_FILE_MASK,I1 *flags="+r+i+l")
{
  U8 cnt;
  BoolU4 old_silent=Silent(TRUE);
  cnt=Grep(pattern,wild,flags);
  Silent(old_silent);
  return cnt;
}

LTDirEntry MCFindMatch(LTDirEntry *pattern,LTDirEntry *list)
{
  while (list) {
    if (!StrCmp(pattern->name,list->name) && pattern->attr==list->attr)
      return list;
    list=list->next;
  }
  return NULL;
}

void MergeChkList(LTDirEntry *m1,LTDirEntry *m2,U8 *fuf_flags,U8 *df_flags)
{
  I8 i;
  LTDirEntry *tempm2;
  while (m1 && !(*df_flags & DF_ABORT_ALL_FILES)) {
    tempm2=MCFindMatch(m1,m2);
    if (!tempm2)
      coutln "Does Not Exist:",m1->full_name;
    else {
      if (m1->attr & LT_ATTR_DIR)
	MergeChkList(m1->sub,tempm2->sub,fuf_flags,df_flags);
      else {
	i=m1->datetime-tempm2->datetime;
	if (AbsI8(i)>LTDATE_FREQ*2) { //Filedates can shift due to conversion
	  coutln m1->full_name;
	  if (Bt(fuf_flags,FUf_DIFF)) {
	    if (IsTextFile(m1->full_name))
	      *df_flags=Diff(tempm2->full_name,m1->full_name,*df_flags);
	  }
	}
      }
    }
    m1=m1->next;
  }
}

public void MergeChk(I1 *dst_mask,I1 *src_mask,I1 *flags="+r")
//r=recurse
//d=diff
{
  U8 df_flags=0;
  LTDirEntry *tempm1=NULL,*tempm2=NULL;
  FlagsStruct f;
  GetFFlags(&f,"ST_FILE_UTIL_FLAGS",flags);
  coutln "WARNING:This is based strictly on file dates.";
  tempm1=FindFiles(src_mask,&f.on);
  tempm2=FindFiles(dst_mask,&f.on);
  MergeChkList(tempm1,tempm2,&f.on,&df_flags);
  DelLTDirList(tempm1);
  DelLTDirList(tempm2);
}



void CommMergeChkList(U8 port,LTDirEntry *m1,LTDirEntry *m2,U8 *fuf_flags,U8 *df_flags)
{
  I8 i;
  LTDirEntry *tempm2;
  while (m1 && !(*df_flags & DF_ABORT_ALL_FILES)) {
    tempm2=MCFindMatch(m1,m2);
    if (!tempm2)
      coutln "Does Not Exist:",m1->name;
    else {
      if (m1->attr & LT_ATTR_DIR)
	CommMergeChkList(port,m1->sub,tempm2->sub,fuf_flags,df_flags);
      else {
	i=m1->datetime-tempm2->datetime;
	if (AbsI8(i)>LTDATE_FREQ*2) { //Filedates can shift due to conversion
	  coutln m1->name;
	  if (Bt(fuf_flags,FUf_DIFF)) {
	    if (IsTextFile(m1->name))
	      *df_flags=Diff(tempm2->name,m1->name,*df_flags);
	  }
	}
      }
    }
    m1=m1->next;
  }
}


//$BK,1$Not Done$BK,0$
public void CommMergeChk(U8 port,I1 *dst_mask,I1 *src_mask,I1 *flags="+r")
//r=recurse
//d=diff
{
  U8 df_flags=0;
  LTDirEntry *tempm1=NULL,*tempm2=NULL;
  FlagsStruct f;
  GetFFlags(&f,"ST_FILE_UTIL_FLAGS",flags);
  coutln "WARNING:This is based strictly on file dates.";
  tempm1=FindFiles(src_mask,&f.on);
  tempm2=FindFiles(dst_mask,&f.on);
  CommMergeChkList(port,tempm1,tempm2,&f.on,&df_flags);
  DelLTDirList(tempm1);
  DelLTDirList(tempm2);
}