
    Wh                        d dl mZ d dlmZ d dlmZmZmZmZ e	e
e
f   Z	 	 	 d	 	 	 	 	 	 	 	 	 	 	 	 	 ddZedk(  rd dlZ ej                          yy)	    )annotations)Optional)KerningPairKerningDictKerningGroupsIntFloatNc                .   | |v r||    S |du |du k7  rt        d      |Xi }i }|j                         D ]A  \  }}|j                  d      r|D ]  }|||<   	 $|j                  d      s6|D ]  }|||<   	 C |J |J | \  }	}
dx}}|	j                  d      r|	}d}n|j                  |	      }|	}|
j                  d      r|
}d}n|j                  |
      }|
}||fD cg c]  }||fD ]
  }||||f  }}}|D ]  } | |v s||    c S  |S c c}}w )a	  Retrieve the kerning value (if any) between a pair of elements.

    The elments can be either individual glyphs (by name) or kerning
    groups (by name), or any combination of the two.

    Args:
      pair:
          A tuple, in logical order (first, second) with respect
          to the reading direction, to query the font for kerning
          information on. Each element in the tuple can be either
          a glyph name or a kerning group name.
      kerning:
          A dictionary of kerning pairs.
      groups:
          A set of kerning groups.
      fallback:
          The fallback value to return if no kern is found between
          the elements in ``pair``. Defaults to 0.
      glyphToFirstGroup:
          A dictionary mapping glyph names to the first-glyph kerning
          groups to which they belong. Defaults to ``None``.
      glyphToSecondGroup:
          A dictionary mapping glyph names to the second-glyph kerning
          groups to which they belong. Defaults to ``None``.

    Returns:
      The kerning value between the element pair. If no kerning for
      the pair is found, the fallback value is returned.

    Note: This function expects the ``kerning`` argument to be a flat
    dictionary of kerning pairs, not the nested structure used in a
    kerning.plist file.

    Examples::

      >>> groups = {
      ...     "public.kern1.O" : ["O", "D", "Q"],
      ...     "public.kern2.E" : ["E", "F"]
      ... }
      >>> kerning = {
      ...     ("public.kern1.O", "public.kern2.E") : -100,
      ...     ("public.kern1.O", "F") : -200,
      ...     ("D", "F") : -300
      ... }
      >>> lookupKerningValue(("D", "F"), kerning, groups)
      -300
      >>> lookupKerningValue(("O", "F"), kerning, groups)
      -200
      >>> lookupKerningValue(("O", "E"), kerning, groups)
      -100
      >>> lookupKerningValue(("O", "O"), kerning, groups)
      0
      >>> lookupKerningValue(("E", "E"), kerning, groups)
      0
      >>> lookupKerningValue(("E", "O"), kerning, groups)
      0
      >>> lookupKerningValue(("X", "X"), kerning, groups)
      0
      >>> lookupKerningValue(("public.kern1.O", "public.kern2.E"),
      ...     kerning, groups)
      -100
      >>> lookupKerningValue(("public.kern1.O", "F"), kerning, groups)
      -200
      >>> lookupKerningValue(("O", "public.kern2.E"), kerning, groups)
      -100
      >>> lookupKerningValue(("public.kern1.X", "public.kern2.X"), kerning, groups)
      0
    NzKMust provide both 'glyphToFirstGroup' and 'glyphToSecondGroup', or neither.zpublic.kern1.zpublic.kern2.)
ValueErroritems
startswithget)pairkerninggroupsfallbackglyphToFirstGroupglyphToSecondGroupgroupgroupMembersglyphfirstsecond
firstGroupsecondGroup
firstGlyphsecondGlyphabpairss                     R/var/www/html/jupyter_env/lib/python3.12/site-packages/fontTools/ufoLib/kerning.pylookupKerningValuer!   
   s   Z wt}T!'9T'ABY
 	
  #)<<> 	6E<0) 5E/4%e,5!!/2) 6E05&u-6	6 ((()))ME6##J(

&**51

)(,,V4 j){+ =Q] 
AE   !7?4= ! Os   "D__main__)r   NN)r   r   r   r   r   r   r   r   r   Optional[StrDict]r   r#   returnr   )
__future__r   typingr   fontTools.annotationsr   r   r   r   dictstrStrDictr!   __name__doctesttestmod     r    <module>r0      s    "  S S
sCx. +/,0}
}} } 	}
 )} *} }@ zGOO r/   