add pre and post symbol

AuerNameTag.scad

@@ -1,10 +1,14 @@
-name="mAdEx";
+name="madex";
+symbolPre="";
+symbolPost="";
 part=3; //[1:base,2:text,3:preview]
 
 
 use <./font/LiberationSans-Bold.ttf>;
+use <./font/Symbola_hint.ttf>;
 label_thickness= 1.5;
 font = "Liberation Sans:style=Bold";
+symbolFont="Symbola:style=Regular";
 font_size = 12;
 font_offset = 9;
 $fn = 128;
@@ -30,8 +34,21 @@ module tag() {
     translate([30, 15, 0]) cube([20, 3, 4 + label_thickness/2]);
 }
 module name(str) {
-    translate([-9, font_offset + font_size/2, -label_thickness/2 + 0.29]) rotate(v=[1,0,0],a=180) linear_extrude(0.3) translate([15, 0]) 
-       text(str, size=font_size, font = font);
+    translate([-9+15, font_offset + font_size/2, -label_thickness/2 + 0.29]) rotate(v=[1,0,0],a=180) linear_extrude(0.3) {
+       text(symbolPre,font_size,symbolFont);
+       symbolPreSize=textmetrics(symbolPre,font_size,font);
+       echo (symbolPreSize);
+       
+        translate([symbolPreSize.size[0]+symbolPreSize.advance[0],0,0]){
+            text(str, size=font_size, font = font);
+            
+            echo(textSize);
+            
+            translate([textSize.advance[0],0,0]) text(symbolPost,font_size,symbolFont);
+        }
+        textSize=textmetrics(str, size=font_size, font = font);
+        
+   }
 }