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3 2��j�I�@sdZddlmZddlmZddlmZddlmZ ddl mZmZddl mZdd lmZmZd-dd�Zd d�Zdd�Zdd�Zd.dd�Zdd�Zdd�Zdd�Zdd�Zdd�Zdd �Zd!d"�Zd#d$�Zd%d&�Zd'd(�Z d)d*�Z!e"d+k�rdd,l#Z#dd,l$Z$e$j%e#j&�j'�d,S)/z�Module to build FeatureVariation tables: https://docs.microsoft.com/en-us/typography/opentype/spec/chapter2#featurevariations-table NOTE: The API is experimental and subject to change. �)�hashdict)�popCount)�newTable)�otTables)�buildLookup�buildSingleSubstSubtable)�OrderedDict�)�VarLibError�VarLibValidationError�rvrncCst|t|�|�dS)a�Add conditional substitutions to a Variable Font. The `conditionalSubstitutions` argument is a list of (Region, Substitutions) tuples. A Region is a list of Boxes. A Box is a dict mapping axisTags to (minValue, maxValue) tuples. Irrelevant axes may be omitted and they are interpretted as extending to end of axis in each direction. A Box represents an orthogonal 'rectangular' subset of an N-dimensional design space. A Region represents a more complex subset of an N-dimensional design space, ie. the union of all the Boxes in the Region. For efficiency, Boxes within a Region should ideally not overlap, but functionality is not compromised if they do. The minimum and maximum values are expressed in normalized coordinates. A Substitution is a dict mapping source glyph names to substitute glyph names. Example: # >>> f = TTFont(srcPath) # >>> condSubst = [ # ... # A list of (Region, Substitution) tuples. # ... ([{"wdth": (0.5, 1.0)}], {"cent": "cent.rvrn"}), # ... ([{"wght": (0.5, 1.0)}], {"dollar": "dollar.rvrn"}), # ... ] # >>> addFeatureVariations(f, condSubst) # >>> f.save(dstPath) N)�addFeatureVariationsRaw�overlayFeatureVariations)�font�conditionalSubstitutions� featureTag�r�A/tmp/pip-build-_d5lkt3n/fonttools/fontTools/varLib/featureVars.py�addFeatureVariationssrcCst�}x8|D]0\}}t|�}||kr4||j|�q|||<qWdd�|j�D�}~t�}xVt|�D]J\}}ttdd�|D�dd�d��}||kr�||j|�qdt|�||<qdWt t|j��}~t�dff}t|�}x�t |�D]�\}\}}t|�} d |>} x�|j�D]x\}}xl|D]d} t| |�\}}|d k �rRt|�}| j|d�|B| B| |<|d k �rt|�}| j|d�|B| |<�qW�qW| }q�Wg}x�t|j�dd�d�D]l\}}|dk�r��q�g}d}x8|�r�|d @�r�|j ||d �|d L}|d 7}�q�W|j t|�|f��q�W|S)apCompute overlaps between all conditional substitutions. The `conditionalSubstitutions` argument is a list of (Region, Substitutions) tuples. A Region is a list of Boxes. A Box is a dict mapping axisTags to (minValue, maxValue) tuples. Irrelevant axes may be omitted and they are interpretted as extending to end of axis in each direction. A Box represents an orthogonal 'rectangular' subset of an N-dimensional design space. A Region represents a more complex subset of an N-dimensional design space, ie. the union of all the Boxes in the Region. For efficiency, Boxes within a Region should ideally not overlap, but functionality is not compromised if they do. The minimum and maximum values are expressed in normalized coordinates. A Substitution is a dict mapping source glyph names to substitute glyph names. Returns data is in similar but different format. Overlaps of distinct substitution Boxes (*not* Regions) are explicitly listed as distinct rules, and rules with the same Box merged. The more specific rules appear earlier in the resulting list. Moreover, instead of just a dictionary of substitutions, a list of dictionaries is returned for substitutions corresponding to each unique space, with each dictionary being identical to one of the input substitution dictionaries. 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([{"wght": (0.5, 1.0), "wdth": (-1, 1.0)}], {"dollar": "dollar.rvrn"}), ... ] >>> from pprint import pprint >>> pprint(overlayFeatureVariations(condSubst)) [({'wdth': (0.5, 1.0), 'wght': (0.5, 1.0)}, [{'dollar': 'dollar.rvrn'}, {'cent': 'cent.rvrn'}]), ({'wdth': (0.5, 1.0)}, [{'cent': 'cent.rvrn'}]), ({'wght': (0.5, 1.0)}, [{'dollar': 'dollar.rvrn'}])] cSsg|]\}}|t|�f�qSr)�dict)�.0�k�vrrr� gsz,overlayFeatureVariations..css|]}tt|��VqdS)N)r� cleanupBox)rrrrr� qsz+overlayFeatureVariations..cSstt|j��S)N)�tuple�sorted�items)�drrr�rsz*overlayFeatureVariations..)�keyrr NcSst|d�S)Nr )r)Z BoxAndRankrrrr �s)rr�extendr�reversedrr�updater�list� enumerate� overlayBox�get�append)rZmerged�valuer!ZinitMapInitZboxMap�iZ currRegion�_ZnewMapZcurrRank�boxZrankZcurrBox�intersection� remainderrZ substsListrrrr3s\- rc Cs@i}|j|�|j|�x`t|�t|�@D]L}||\}}||\}}t||�}t||�} || ksjd|fS|| f||<q*Wt|�} d}d}x�|D]�}||kr�d}q�||\}}||\}}||kr�||kr�q�|r�||fSd}d}||kr�t||�}|} n"||k�r|}t||�} n||fS|| f| |<q�W|�r8|dfS|| fS)a>Overlays `top` box on top of `bot` box. 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