Non-controversial whitespace cleanup

Nothing to do with tab width!  Eliminates useless
trailing spaces and tabs, and nearly all <space><tab>
pairings.  No change to derived files (e.g., .vvp),
non-master files (e.g., lxt2_write.c) or the new tgt-vhdl
directory.

Low priority, simple entropy reduction.  Please apply
unless it deletes some steganographic content you want
to keep.

driver/main.c

@@ -654,7 +654,7 @@ int main(int argc, char **argv)
 		case 'c':
 		case 'f':
 		  add_cmd_file(optarg);
- 		  break;
+		  break;
 		case 'D':
 		  process_define(optarg);
 		  break;
@@ -673,9 +673,9 @@ int main(int argc, char **argv)
 		  if (rc != 0)
 			return -1;
 		  break;
- 		case 'h':
+		case 'h':
- 		  fprintf(stderr, "%s\n", HELP);
+		  fprintf(stderr, "%s\n", HELP);
- 		  return 1;
+		  return 1;
 
 		case 'I':
 		  process_include_dir(optarg);

elab_net.cc

@@ -1227,8 +1227,8 @@ NetNet* PEBinary::elaborate_net_shift_(Design*des, NetScope*scope,
 	    }
 
 	    /* If all data bits get shifted away, connect the zero or
- 	     * padding bits directly to output, and stop before building the
+	     * padding bits directly to output, and stop before building the
- 	     * concatenation. */
+	     * concatenation. */
 	    if (dist >= lwidth) {
 		  connect(osig->pin(0), zero->pin(0));
 		  return osig;

elab_scope.cc

@@ -670,7 +670,7 @@ bool PGenerate::generate_scope_case_(Design*des, NetScope*container)
 		 << "Generate case matches item at "
 		 << item->get_fileline() << endl;
 
- 	// The name of the scope to generate, whatever that item is.
+	// The name of the scope to generate, whatever that item is.
       hname_t use_name (item->scope_name);
 
       NetScope*scope = new NetScope(container, use_name,

libveriuser/a_object_of_type.c

@@ -35,7 +35,7 @@ int acc_object_of_type(handle object, PLI_INT32 type)
 
       if (pli_trace) {
 	    fprintf(pli_trace, "acc_object_of_type(%p \"%s\", %d)",
-	    	object, vpi_get_str(vpiName, object), type);
+		object, vpi_get_str(vpiName, object), type);
 	    fflush(pli_trace);
       }
 

netlist.h

@@ -768,7 +768,7 @@ class NetScope : public Attrib {
 
       void evaluate_parameters(class Design*);
 
-      	// Look for defparams that never matched, and print warnings.
+	// Look for defparams that never matched, and print warnings.
       void residual_defparams(class Design*);
 
 	/* This method generates a non-hierarchical name that is

tgt-stub/stub.c

@@ -1042,7 +1042,7 @@ static void signal_nexus_const(ivl_signal_t sig,
       switch (ivl_const_type(con)) {
 	  case IVL_VT_LOGIC:
 	    bits = ivl_const_bits(con);
- 	    for (idx = 0 ;  idx < width ;  idx += 1) {
+	    for (idx = 0 ;  idx < width ;  idx += 1) {
 		  fprintf(out, "%c", bits[width-idx-1]);
 	    }
 	    break;

vpi/sys_lxt.c

@@ -252,8 +252,8 @@ static PLI_INT32 variable_cb_1(p_cb_data cause)
       struct t_cb_data cb;
       struct vcd_info*info = (struct vcd_info*)cause->user_data;
 
-      if (dump_is_full) 	 return 0;
+      if (dump_is_full)          return 0;
-      if (dump_is_off) 		 return 0;
+      if (dump_is_off)           return 0;
       if (dump_header_pending()) return 0;
       if (info->scheduled)       return 0;
 

vvp/compile.cc

@@ -64,7 +64,7 @@ enum operand_e {
       OA_CODE_PTR,
 	/* The operand is a variable or net pointer */
       OA_FUNC_PTR,
- 	/* The operand is a second functor pointer */
+	/* The operand is a second functor pointer */
       OA_FUNC_PTR2,
 	/* The operand is a VPI handle */
       OA_VPI_PTR,
@@ -1543,7 +1543,7 @@ void compile_code(char*label, char*mnem, comp_operands_t opa)
 		case OA_NONE:
 		  break;
 
-        	case OA_ARR_PTR:
+		case OA_ARR_PTR:
 		  if (opa->argv[idx].ltype != L_SYMB) {
 			yyerror("operand format");
 			break;

vvp/vpi_priv.cc

@@ -330,7 +330,7 @@ int vpip_time_units_from_handle(vpiHandle obj)
 	  case vpiReg:
 	    signal = vpip_signal_from_handle(obj);
 	    scope = vpip_scope(signal);
- 	    return scope->time_units;
+	    return scope->time_units;
 
 	  default:
 	    fprintf(stderr, "ERROR: vpip_time_units_from_handle called with "
@@ -686,20 +686,20 @@ vpiHandle vpi_put_value(vpiHandle obj, s_vpi_value*vp,
 
 	    assert(when != 0);
 
- 	    switch (when->type) {
+	    switch (when->type) {
- 		case vpiScaledRealTime:
+		case vpiScaledRealTime:
- 		  dly = (vvp_time64_t)(when->real *
+		  dly = (vvp_time64_t)(when->real *
 				       (pow(10.0L,
 					    vpip_time_units_from_handle(obj) -
 					    vpip_get_time_precision())));
- 		  break;
+		  break;
- 		case vpiSimTime:
+		case vpiSimTime:
 		  dly = vpip_timestruct_to_time(when);
- 		  break;
+		  break;
- 		default:
+		default:
 		  dly = 0;
 		  break;
- 	    }
+	    }
 
 	    vpip_put_value_event*put = new vpip_put_value_event;
 	    put->handle = obj;

vvp/vpi_scope.cc

@@ -198,7 +198,7 @@ static int compare_types(int code, int type)
 	     (type == vpiIntegerVar ||
 	      type == vpiTimeVar    ||
 	      type == vpiRealVar))
-      	    return 1;
+	    return 1;
 
       return 0;
 }

vvp/vpi_vthr_vector.cc

@@ -296,7 +296,7 @@ static void vthr_vec_get_value(vpiHandle ref, s_vpi_value*vp)
 	  case vpiRealVal:
 	    vp->value.real = 0;
 	    for (unsigned idx = wid ;  idx > 0 ;  idx -= 1) {
-	    	  vp->value.real *= 2.0;
+		  vp->value.real *= 2.0;
 		  switch (get_bit(rfp, idx-1)) {
 		      case BIT4_0:
 			break;

vvp/vpip_to_dec.cc

@@ -223,7 +223,7 @@ unsigned vpip_vec4_to_dec_str(const vvp_vector4_t&vec4,
 void vpip_dec_str_to_vec4(vvp_vector4_t&vec,
 			  const char*buf, bool signed_flag)
 {
- 	/* The str string is the decimal value with the least
+	/* The str string is the decimal value with the least
 	   significant digit first. This loop creates that string by
 	   reversing the order of the buf string. For example, if the
 	   input is "1234", str gets "4321". */

vvp/vthread.cc

@@ -204,7 +204,7 @@ static unsigned long* vector_to_array(struct vthread_s*thr,
 static vvp_vector4_t vthread_bits_to_vector(struct vthread_s*thr,
 					    unsigned bit, unsigned wid)
 {
-      	/* Make a vector of the desired width. */
+	/* Make a vector of the desired width. */
 
       if (bit >= 4) {
 	    return vvp_vector4_t(thr->bits4, bit, wid);