o nÄŽiäã@snddlmZddlmZddlmZmZmZmZe e e fZ  dddd„Z e dkr5ddlZe ¡dSdS)é)Ú annotations)ÚOptional)Ú KerningPairÚ KerningDictÚ KerningGroupsÚIntFloatNÚpairrÚkerningrÚgroupsrÚfallbackrÚglyphToFirstGroupúOptional[StrDict]ÚglyphToSecondGroupÚreturncs*||vr||S|du|dukrtdƒ‚|durBi}i}| ¡D]!\}}| d¡r3|D]}|||<q+q | d¡rA|D]}|||<q:q |dusHJ‚|dusNJ‚|\} } d} ‰|  d¡r`| } d} n| | ¡} | } |  d¡rq| ‰d‰n| | ¡‰| ‰‡‡fdd„| | fDƒ} | D] }||vr’||Sq†|S)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.cs2g|]}ˆˆfD]}|dur|dur||f‘qqS)N©)Ú.0ÚaÚb©Ú secondGlyphÚ secondGrouprúT/home/jeff/fluffinator/venv/lib/python3.10/site-packages/fontTools/ufoLib/kerning.pyÚ |sýýz&lookupKerningValue..)Ú ValueErrorÚitemsÚ startswithÚget)rr r r r rÚgroupÚ groupMembersÚglyphÚfirstÚsecondÚ firstGroupÚ firstGlyphÚpairsrrrÚlookupKerningValue sPMÿ  ÿ  €       þ ÿr%Ú__main__)rNN)rrr rr rr rr r rr rr)Ú __future__rÚtypingrÚfontTools.annotationsrrrrÚdictÚstrÚStrDictr%Ú__name__ÚdoctestÚtestmodrrrrÚs   ú ý