diff --git a/src/actions.c b/src/actions.c
index 3ad090b7..154c158e 100644
--- a/src/actions.c
+++ b/src/actions.c
@@ -2812,7 +2812,7 @@ void calc_drawing_bbox(xRect *boundbox, int selected)
      if(!xctx->hilight_nets || !xctx->wire[i].node || 
        !xctx->wire[i].node[0] || !bus_hilight_hash_lookup(xctx->wire[i].node, 0,XLOOKUP)) continue;
    }
-   if(xctx->wire[i].bus){
+   if(xctx->wire[i].bus == -1.0){
      ov = INT_BUS_WIDTH(xctx->lw)> xctx->cadhalfdotsize ? INT_BUS_WIDTH(xctx->lw) : CADHALFDOTSIZE;
      if(xctx->wire[i].y1 < xctx->wire[i].y2) { y1 = xctx->wire[i].y1-ov; y2 = xctx->wire[i].y2+ov; }
      else                        { y1 = xctx->wire[i].y1+ov; y2 = xctx->wire[i].y2-ov; }
diff --git a/src/draw.c b/src/draw.c
index a091b2fe..26a62a1a 100644
--- a/src/draw.c
+++ b/src/draw.c
@@ -733,7 +733,7 @@ void draw_symbol(int what,int c, int n,int layer,short tmp_flip, short rot,
       ROTATION(rot, flip, 0.0, 0.0,line->x1,line->y1,x1,y1);
       ROTATION(rot, flip, 0.0, 0.0,line->x2,line->y2,x2,y2);
       ORDER(x1,y1,x2,y2);
-      if(line->bus)
+      if(line->bus == -1.0)
         drawline(c,THICK, x0+x1, y0+y1, x0+x2, y0+y2, dash, NULL);
       else
         drawline(c,what, x0+x1, y0+y1, x0+x2, y0+y2, dash, NULL);
@@ -744,7 +744,7 @@ void draw_symbol(int what,int c, int n,int layer,short tmp_flip, short rot,
       int bezier;
       int bus;
       polygon = &(symptr->poly[layer])[j];
-      bus = polygon->bus ? THICK : NOW;
+      bus = (polygon->bus == -1.0) ? THICK : NOW;
       bezier = !strboolcmp(get_tok_value(polygon->prop_ptr, "bezier", 0), "true");
       dash = (disabled == 1) ? 3 : polygon->dash;
       x = my_malloc(_ALLOC_ID_, sizeof(double) * polygon->points);
@@ -984,7 +984,7 @@ void draw_temp_symbol(int what, GC gc, int n,int layer,short tmp_flip, short rot
     ROTATION(rot, flip, 0.0, 0.0,line->x1,line->y1,x1,y1);
     ROTATION(rot, flip, 0.0, 0.0,line->x2,line->y2,x2,y2);
     ORDER(x1,y1,x2,y2);
-    if(line->bus)
+    if(line->bus == -1.0)
       drawtempline(gc,THICK, x0+x1, y0+y1, x0+x2, y0+y2);
     else
       drawtempline(gc,what, x0+x1, y0+y1, x0+x2, y0+y2);
@@ -5157,7 +5157,7 @@ void draw(void)
       cc = c; if(xctx->only_probes) cc = GRIDLAYER;
       if(draw_layer && xctx->enable_layer[c]) for(i=0;i<xctx->lines[c]; ++i) {
         xLine *l = &xctx->line[c][i];
-        if(l->bus) drawline(cc, THICK, l->x1, l->y1, l->x2, l->y2, l->dash, NULL);
+        if(l->bus == -1.0) drawline(cc, THICK, l->x1, l->y1, l->x2, l->y2, l->dash, NULL);
         else       drawline(cc, ADD, l->x1, l->y1, l->x2, l->y2, l->dash, NULL);
       }
       if(draw_layer && xctx->enable_layer[c]) for(i=0;i<xctx->rects[c]; ++i) {
@@ -5180,9 +5180,9 @@ void draw(void)
       if(draw_layer && xctx->enable_layer[c]) for(i=0;i<xctx->polygons[c]; ++i) {
         int bezier;
         xPoly *p = &xctx->poly[c][i];
-        int bus = p->bus ? THICK : NOW;
+        int what = (p->bus == -1.0) ? THICK : NOW;
         bezier = 2 + !strboolcmp(get_tok_value(p->prop_ptr, "bezier", 0), "true");
-        drawpolygon(cc, bus, p->x, p->y, p->points, p->fill, p->dash, bezier);
+        drawpolygon(cc, what, p->x, p->y, p->points, p->fill, p->dash, bezier);
       }
       if(use_hash) init_inst_iterator(&ctx, x1, y1, x2, y2);
       else i = -1;
@@ -5232,7 +5232,7 @@ void draw(void)
           ++i;
           if(i >= xctx->wires) break;
         }
-        if(xctx->wire[i].bus) {
+        if(xctx->wire[i].bus == -1.0) {
           drawline(cc, THICK, xctx->wire[i].x1,xctx->wire[i].y1,
             xctx->wire[i].x2,xctx->wire[i].y2, 0, NULL);
         }
diff --git a/src/editprop.c b/src/editprop.c
index 4d046b6f..a829e9d2 100644
--- a/src/editprop.c
+++ b/src/editprop.c
@@ -79,23 +79,27 @@ int my_strncasecmp(const char *s1, const char *s2, size_t n)
   return tolower(*s1) - tolower(*s2);
 }
 
-/* if s is an integer return integer value
- * else if s == (true | on | yes) return 1
- * else if s == (false | off | no) return 0
- * else return 0
+/* if s is an double return double value
+ * else if s == ( 1 | true | on | yes) return -1.0
+ * else if s == (false | off | no) return 0.0
+ * else return 0.0
  */
-int get_attr_val(const char *str)
+double get_attr_val(const char *str)
 {  
-  int s = 0;
-  if(isonlydigit(str)) {
-    s = atoi(str);
-  }
+  double s = 0.0;
+  char *endptr;
+
+  if(!str) return 0.0;
   else if(!my_strcasecmp(str, "true") ||
+     !my_strcasecmp(str, "1") ||
      !my_strcasecmp(str, "on") ||
-     !my_strcasecmp(str, "yes")) s = 1;
+     !my_strcasecmp(str, "yes")) s = -1.0;
   else if(!my_strcasecmp(str, "false") ||
      !my_strcasecmp(str, "off") ||
-     !my_strcasecmp(str, "no")) s = 0;
+     !my_strcasecmp(str, "no")) s = 0.0;
+  else if((strtod(str, &endptr), endptr) > str) { /* NUMBER */
+    s = atof(str);
+  }
 
   return s;
 } 
@@ -1156,7 +1160,7 @@ static int edit_wire_property(void)
   int i, modified = 0;
   int preserve;
   char *oldprop=NULL;
-  int bus;
+  double bus;
 
   my_strdup(_ALLOC_ID_, &oldprop, xctx->wire[xctx->sel_array[0].n].prop_ptr);
   if(oldprop && oldprop[0]) {
@@ -1173,7 +1177,7 @@ static int edit_wire_property(void)
     xctx->push_undo();
     bbox(START, 0.0 , 0.0 , 0.0 , 0.0);
     for(i=0; i<xctx->lastsel; ++i) {
-      int oldbus=0;
+      double oldbus=0.0;
       int k = xctx->sel_array[i].n;
       if(xctx->sel_array[i].type != WIRE) continue;
       /* does not seem to be necessary */
@@ -1187,7 +1191,7 @@ static int edit_wire_property(void)
         my_strdup(_ALLOC_ID_, &xctx->wire[k].prop_ptr,(char *) tclgetvar("tctx::retval"));
       }
       xctx->wire[k].bus = bus = get_attr_val(get_tok_value(xctx->wire[k].prop_ptr,"bus",0));
-      if(bus) {
+      if(bus == -1.0) {
         double ov, y1, y2;
         ov = INT_BUS_WIDTH(xctx->lw) > xctx->cadhalfdotsize ? INT_BUS_WIDTH(xctx->lw) : CADHALFDOTSIZE;
         if(xctx->wire[k].y1 < xctx->wire[k].y2) { y1 = xctx->wire[k].y1-ov; y2 = xctx->wire[k].y2+ov; }
@@ -1288,8 +1292,8 @@ static int edit_polygon_property(void)
   int old_fill;
   int oldbezier, bezier;
   int k;
-  double x1=0., y1=0., x2=0., y2=0.;
-  int c, i, ii, old_dash, oldbus, bus;
+  double x1=0., y1=0., x2=0., y2=0., oldbus = 0.0, bus = 0.0;
+  int c, i, ii, old_dash;
   int drw = 0;
   char *oldprop = NULL;
   const char *dash;
diff --git a/src/hilight.c b/src/hilight.c
index f90bfc92..9dfcdddd 100644
--- a/src/hilight.c
+++ b/src/hilight.c
@@ -2226,7 +2226,7 @@ void draw_hilight_net(int on_window)
      if(i >= xctx->wires) break;
    }
    if( (entry = bus_hilight_hash_lookup(xctx->wire[i].node, 0, XLOOKUP)) ) {
-     if(xctx->wire[i].bus)
+     if(xctx->wire[i].bus == -1.0)
        drawline(get_color(entry->value), THICK,
           xctx->wire[i].x1, xctx->wire[i].y1, xctx->wire[i].x2, xctx->wire[i].y2, 0, NULL);
      else
diff --git a/src/move.c b/src/move.c
index acd9bb27..08eb6b0c 100644
--- a/src/move.c
+++ b/src/move.c
@@ -382,7 +382,7 @@ void draw_selection(GC g, int interruptable)
       double x2 = xctx->rx2 + xctx->deltax;
       double y2 = xctx->ry2 + xctx->deltay;
       dbg(1, "draw_selection() wire: %g %g - %g %g  manhattan=%d\n", x1, y1, x2, y2, xctx->manhattan_lines);
-      if(xctx->wire[n].bus) {
+      if(xctx->wire[n].bus == -1.0) {
         drawtemp_manhattanline(g, THICK, x1, y1, x2, y2, 1);
       } else {
         drawtemp_manhattanline(g, ADD, x1, y1, x2, y2, 1);
@@ -395,7 +395,7 @@ void draw_selection(GC g, int interruptable)
       double x2 = xctx->rx2;
       double y2 = xctx->ry2;
       dbg(1, "draw_selection() wire: %g %g - %g %g  manhattan=%d\n", x1, y1, x2, y2, xctx->manhattan_lines);
-      if(xctx->wire[n].bus) {
+      if(xctx->wire[n].bus == -1.0) {
         drawtemp_manhattanline(g, THICK, x2, y2, x1, y1, 1);
       } else {
         drawtemp_manhattanline(g, ADD, x2, y2, x1, y1, 1);
@@ -408,7 +408,7 @@ void draw_selection(GC g, int interruptable)
       double x2 = xctx->rx2 + xctx->deltax;
       double y2 = xctx->ry2 + xctx->deltay;
       dbg(1, "draw_selection() wire: %g %g - %g %g  manhattan=%d\n", x1, y1, x2, y2, xctx->manhattan_lines);
-      if(xctx->wire[n].bus) {
+      if(xctx->wire[n].bus == -1.0) {
         drawtemp_manhattanline(g, THICK, x1, y1, x2, y2, 1);
       } else {
         drawtemp_manhattanline(g, ADD, x1, y1, x2, y2, 1);
@@ -430,7 +430,7 @@ void draw_selection(GC g, int interruptable)
      ORDER(xctx->rx1,xctx->ry1,xctx->rx2,xctx->ry2);
      if(xctx->line[c][n].sel==SELECTED)
      {
-       if(xctx->line[c][n].bus)
+       if(xctx->line[c][n].bus == -1.0)
          drawtempline(g, THICK, xctx->rx1+xctx->deltax, xctx->ry1+xctx->deltay,
                 xctx->rx2+xctx->deltax, xctx->ry2+xctx->deltay);
        else
@@ -439,14 +439,14 @@ void draw_selection(GC g, int interruptable)
      }
      else if(xctx->line[c][n].sel==SELECTED1)
      {
-       if(xctx->line[c][n].bus)
+       if(xctx->line[c][n].bus == -1.0)
          drawtempline(g, THICK, xctx->rx1+xctx->deltax, xctx->ry1+xctx->deltay, xctx->rx2, xctx->ry2);
        else
          drawtempline(g, ADD, xctx->rx1+xctx->deltax, xctx->ry1+xctx->deltay, xctx->rx2, xctx->ry2);
      }
      else if(xctx->line[c][n].sel==SELECTED2)
      {
-       if(xctx->line[c][n].bus)
+       if(xctx->line[c][n].bus == -1.0)
          drawtempline(g, THICK, xctx->rx1, xctx->ry1, xctx->rx2+xctx->deltax, xctx->ry2+xctx->deltay);
        else
          drawtempline(g, ADD, xctx->rx1, xctx->ry1, xctx->rx2+xctx->deltax, xctx->ry2+xctx->deltay);
diff --git a/src/psprint.c b/src/psprint.c
index 1b78d324..7adb2cc3 100644
--- a/src/psprint.c
+++ b/src/psprint.c
@@ -521,7 +521,7 @@ static void ps_drawbezier(double *x, double *y, int points)
 /* Convex Nonconvex Complex */
 #define Polygontype Nonconvex
 static void ps_drawpolygon(int c, int what, double *x, double *y, int points,
-                           int poly_fill, int dash, int flags, int bus)
+                           int poly_fill, int dash, int flags, double bus)
 {
   double x1,y1,x2,y2;
   double xx, yy;
@@ -539,7 +539,7 @@ static void ps_drawpolygon(int c, int what, double *x, double *y, int points,
   if(dash) {
     fprintf(fd, "[%g %g] 0 setdash\n", psdash, psdash);
   }
-  if(bus) set_lw(BUS_WIDTH * xctx->lw);
+  if(bus == -1.0) set_lw(BUS_WIDTH * xctx->lw);
   bezier = flags && (points > 2);
   if(bezier) {
     ps_drawbezier(x, y, points);
@@ -559,7 +559,7 @@ static void ps_drawpolygon(int c, int what, double *x, double *y, int points,
   if(dash) {
     fprintf(fd, "[] 0 setdash\n");
   }
-  if(bus) set_lw(xctx->lw);
+  if(bus == -1.0) set_lw(xctx->lw);
 }
 
 
@@ -634,7 +634,7 @@ static void ps_drawarc(int gc, int fillarc, double x,double y,double r,double a,
 }
 
 
-static void ps_drawline(int gc, double linex1,double liney1,double linex2,double liney2, int dash, int bus)
+static void ps_drawline(int gc, double linex1,double liney1,double linex2,double liney2, int dash, double bus)
 {
  double x1,y1,x2,y2;
  double psdash;
@@ -647,10 +647,10 @@ static void ps_drawline(int gc, double linex1,double liney1,double linex2,double
   {
     psdash = dash / xctx->zoom;
     if(dash) fprintf(fd, "[%g %g] 0 setdash\n", psdash, psdash);
-    if(bus) set_lw(xctx->lw * BUS_WIDTH);
+    if(bus == -1.0) set_lw(xctx->lw * BUS_WIDTH);
     ps_xdrawline(gc, x1, y1, x2, y2);
     if(dash) fprintf(fd, "[] 0 setdash\n");
-    if(bus) set_lw(xctx->lw);
+    if(bus == -1.0) set_lw(xctx->lw);
   }
 }
 
diff --git a/src/save.c b/src/save.c
index 0afd977b..ea25062c 100644
--- a/src/save.c
+++ b/src/save.c
@@ -1904,7 +1904,7 @@ int plot_raw_custom_data(int sweep_idx, int first, int last, const char *expr, c
     else if(!strcmp(n, "exch()")) stack1[stackptr1++].i = EXCH;
     else if(!strcmp(n, "dup()")) stack1[stackptr1++].i = DUP;
     else if(!strcmp(n, "idx()")) stack1[stackptr1++].i = IDX;
-    else if( (strtod(n, &endptr)), endptr > n) { /* NUMBER */
+    else if( (strtod(n, &endptr), endptr) > n) { /* NUMBER */
       stack1[stackptr1].i = NUMBER;
       stack1[stackptr1++].d = atof_spice(n);
     }
@@ -2812,7 +2812,7 @@ static void load_wire(FILE *fd)
     }
     ptr[i].prop_ptr = NULL;
     ptr[i].end1 = ptr[i].end2 = ptr[i].sel = 0;
-    ptr[i].bus = 0;
+    ptr[i].bus = 0.0;
     load_ascii_string( &ptr[i].prop_ptr, fd);
     ORDER(ptr[i].x1, ptr[i].y1, ptr[i].x2, ptr[i].y2);
     ptr[i].bus = get_attr_val(get_tok_value(ptr[i].prop_ptr, "bus", 0));
diff --git a/src/select.c b/src/select.c
index 0b8b0c0a..e50148c0 100644
--- a/src/select.c
+++ b/src/select.c
@@ -795,7 +795,7 @@ void unselect_all(int dr)
       xctx->wire[i].sel = 0;
       {
         if(dr) {
-          if(xctx->wire[i].bus)
+          if(xctx->wire[i].bus == -1.0)
             drawtempline(xctx->gctiled, THICK, xctx->wire[i].x1, xctx->wire[i].y1,
                                                xctx->wire[i].x2, xctx->wire[i].y2);
           else
@@ -861,7 +861,7 @@ void unselect_all(int dr)
       {
        xctx->line[c][i].sel = 0;
        if(dr) {
-         if(xctx->line[c][i].bus)
+         if(xctx->line[c][i].bus == -1.0)
            drawtempline(xctx->gctiled, THICK, xctx->line[c][i].x1, xctx->line[c][i].y1,
                                         xctx->line[c][i].x2, xctx->line[c][i].y2);
          else
@@ -926,7 +926,7 @@ void select_wire(int i,unsigned short select_mode, int fast, int override_lock)
   if( xctx->wire[i].sel == SELECTED) set_first_sel(WIRE, i, 0);
   if(select_mode) {
    dbg(1, "select(): wire[%d].end1=%d, ,end2=%d\n", i, xctx->wire[i].end1, xctx->wire[i].end2);
-   if(xctx->wire[i].bus) {
+   if(xctx->wire[i].bus == -1.0) {
      if(!(fast & 2)) drawtempline(xctx->gc[SELLAYER], THICK, xctx->wire[i].x1, xctx->wire[i].y1,
                        xctx->wire[i].x2, xctx->wire[i].y2);
    } else {
@@ -935,7 +935,7 @@ void select_wire(int i,unsigned short select_mode, int fast, int override_lock)
    }
   }
   else {
-   if(xctx->wire[i].bus) {
+   if(xctx->wire[i].bus == -1.0) {
      if(!(fast & 2)) drawtempline(xctx->gctiled, THICK, xctx->wire[i].x1, xctx->wire[i].y1,
                        xctx->wire[i].x2, xctx->wire[i].y2);
    } else {
@@ -1253,7 +1253,7 @@ void select_line(int c, int i, unsigned short select_mode, int fast, int overrid
   }
   if(xctx->line[c][i].sel == SELECTED) set_first_sel(LINE, i, c);
   if(select_mode) {
-   if(xctx->line[c][i].bus) {
+   if(xctx->line[c][i].bus == -1.0) {
      if(!(fast & 2)) drawtempline(xctx->gc[SELLAYER], THICK, xctx->line[c][i].x1, xctx->line[c][i].y1,
                                        xctx->line[c][i].x2, xctx->line[c][i].y2);
    } else {
@@ -1262,7 +1262,7 @@ void select_line(int c, int i, unsigned short select_mode, int fast, int overrid
    }
   }
   else {
-    if(xctx->line[c][i].bus) {
+    if(xctx->line[c][i].bus == -1.0) {
       if(!(fast & 2)) drawtempline(xctx->gctiled, THICK, xctx->line[c][i].x1, xctx->line[c][i].y1,
                                  xctx->line[c][i].x2, xctx->line[c][i].y2);
     } else {
diff --git a/src/store.c b/src/store.c
index 49ec687a..abdc162c 100644
--- a/src/store.c
+++ b/src/store.c
@@ -250,7 +250,7 @@ int storeobject(int pos, double x1,double y1,double x2,double y2,
      my_strdup(_ALLOC_ID_, &xctx->line[rectc][n].prop_ptr, prop_ptr);
      xctx->line[rectc][n].sel=sel;
      if(sel == SELECTED) set_first_sel(LINE, n, rectc);
-     xctx->line[rectc][n].bus = 0;
+     xctx->line[rectc][n].bus = 0.0;
      if(prop_ptr) {
         xctx->line[rectc][n].bus = get_attr_val(get_tok_value(prop_ptr, "bus", 0));
      }
@@ -342,7 +342,7 @@ int storeobject(int pos, double x1,double y1,double x2,double y2,
      xctx->wire[n].end1=0;
      xctx->wire[n].end2=0;
      my_strdup(_ALLOC_ID_, &xctx->wire[n].prop_ptr, prop_ptr);
-     xctx->wire[n].bus = 0;
+     xctx->wire[n].bus = 0.0;
      if(prop_ptr) {
        xctx->wire[n].bus = get_attr_val(get_tok_value(prop_ptr,"bus",0));
      }
diff --git a/src/svgdraw.c b/src/svgdraw.c
index 0d52a183..c887dbd7 100644
--- a/src/svgdraw.c
+++ b/src/svgdraw.c
@@ -42,11 +42,11 @@ static void svg_restore_lw(void)
    svg_linew = (xctx->lw <= 0.01 ? 0.2 : xctx->lw) * 1.2;
 }
 
-static void svg_xdrawline(int layer, int bus, double x1, double y1, double x2, double y2, int dash)
+static void svg_xdrawline(int layer, double bus, double x1, double y1, double x2, double y2, int dash)
 {
  fprintf(fd,"<path class=\"l%d\" ", layer);
  if(dash) fprintf(fd, "stroke-dasharray=\"%g,%g\" ", 1.4*dash/xctx->zoom, 1.4*dash/xctx->zoom);
- if(bus) fprintf(fd, "style=\"stroke-width:%g;\" ", BUS_WIDTH * svg_linew);
+ if(bus == -1.0) fprintf(fd, "style=\"stroke-width:%g;\" ", BUS_WIDTH * svg_linew);
  fprintf(fd,"d=\"M%g %gL%g %g\"/>\n", x1, y1, x2, y2);
 }
 
@@ -119,7 +119,7 @@ static void svg_drawbezier(double *x, double *y, int points)
 }
 
 static void svg_drawpolygon(int c, int what, double *x, double *y, int points,
-                            int fill, int dash, int flags, int bus)
+                            int fill, int dash, int flags, double bus)
 {
   double x1,y1,x2,y2;
   double xx, yy;
@@ -134,8 +134,8 @@ static void svg_drawpolygon(int c, int what, double *x, double *y, int points,
   }
   fprintf(fd, "<path class=\"l%d\" ", c);
   if(dash) fprintf(fd, "stroke-dasharray=\"%g,%g\" ", 1.4*dash/xctx->zoom, 1.4*dash/xctx->zoom);
-  if(bus || fill == 0 || fill == 2) {
-    if(bus) fprintf(fd, "style=\"stroke-width:%g; ", BUS_WIDTH * svg_linew);
+  if(bus == -1.0 || fill == 0 || fill == 2) {
+    if(bus == -1.0) fprintf(fd, "style=\"stroke-width:%g; ", BUS_WIDTH * svg_linew);
     else    fprintf(fd, "style=\"");
     if(fill == 0) {
       fprintf(fd,"fill:none;\" ");
@@ -282,7 +282,7 @@ static void svg_drawarc(int gc, int fillarc, double x,double y,double r,double a
   }
 }
 
-static void svg_drawline(int gc, int bus, double linex1,double liney1,double linex2,double liney2, int dash)
+static void svg_drawline(int gc, double bus, double linex1,double liney1,double linex2,double liney2, int dash)
 {
  double x1,y1,x2,y2;
 
diff --git a/src/xschem.h b/src/xschem.h
index d7620707..31c89bdd 100644
--- a/src/xschem.h
+++ b/src/xschem.h
@@ -459,7 +459,7 @@ typedef struct
   short sel;
   char  *node;
   char *prop_ptr;
-  int bus; /*  20171201 cache here wire "bus" property, to avoid too many get_tok_value() calls */
+  double bus; /*  20171201 cache here wire "bus" property, to avoid too many get_tok_value() calls */
 } xWire;
 
 typedef struct
@@ -471,7 +471,7 @@ typedef struct
   unsigned short sel;
   char *prop_ptr;
   short dash;
-  int bus;
+  double bus;
 } xLine;
 
 #if HAS_CAIRO==1
@@ -519,7 +519,7 @@ typedef struct
   char *prop_ptr;
   short fill;
   short dash;
-  int bus;
+  double bus;
 } xPoly;
 
 typedef struct
@@ -1671,7 +1671,7 @@ extern char *my_strtok_r(char *str, const char *delim, const char *quote, int ke
 extern char **parse_cmd_string(const char *cmd, int *argc);
 extern int my_strncpy(char *d, const char *s, size_t n);
 extern int my_strcasecmp(const char *s1, const char *s2);
-extern int get_attr_val(const char *str);
+extern double get_attr_val(const char *str);
 extern int strboolcmp(const char *str, const char *boolean);
 extern char *my_strcasestr(const char *haystack, const char *needle);
 extern double mylog10(double x);