0x2000    [ ]                               # EN QUAD
0x2001    [ ]                               # EM QUAD
0x2002    [ ]       [ ]        
              # EN SPACE
0x2003    [ ]       [ ]        
              # EM SPACE
0x2004    [ ]       [ ]      
            # THREE-PER-EM SPACE
0x2005    [ ]       [ ]      
            # FOUR-PER-EM SPACE
0x2007    [ ]       [ ]       
             # FIGURE SPACE
0x2008    [ ]       [ ]      
            # PUNCTUATION SPACE
0x2009    [ ]       [ ]      
            # THIN SPACE
0x200A    [ ]       [ ]      
            # HAIR SPACE
0x200C    []       []        
              # ZERO WIDTH NON-JOINER
0x200D    []       [] 
               # ZERO WIDTH JOINER
0x200E    []       [] 
               # LEFT-TO-RIGHT MARK
0x200F    []       [] 
               # RIGHT-TO-LEFT MARK
0x2010    [‐]       [‐]        
              # HYPHEN
0x2013    [–]       [–]       
             # EN DASH
0x2014    [—]       [—]       
             # EM DASH