mirror of
https://github.com/rsms/inter.git
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363 lines
12 KiB
Python
Executable File
363 lines
12 KiB
Python
Executable File
#!/usr/bin/env python
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# encoding: utf8
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from __future__ import print_function
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import os, sys, plistlib, json
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from collections import OrderedDict
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from ConfigParser import RawConfigParser
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from argparse import ArgumentParser
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from fontTools import ttLib
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from robofab.objects.objectsRF import OpenFont
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def getTTCharMap(font): # -> { 2126: 'Omegagreek', ...}
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if isinstance(font, str):
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font = ttLib.TTFont(font)
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if not 'cmap' in font:
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raise Exception('missing cmap table')
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gl = {}
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bestCodeSubTable = None
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bestCodeSubTableFormat = 0
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for st in font['cmap'].tables:
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if st.platformID == 0: # 0=unicode, 1=mac, 2=(reserved), 3=microsoft
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if st.format > bestCodeSubTableFormat:
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bestCodeSubTable = st
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bestCodeSubTableFormat = st.format
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if bestCodeSubTable is not None:
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for cp, glyphname in bestCodeSubTable.cmap.items():
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if cp in gl:
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raise Exception('duplicate unicode-to-glyphname mapping: U+%04X => %r and %r' % (
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cp, glyphname, gl[cp]))
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gl[cp] = glyphname
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return gl
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def revCharMap(ucToNames):
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# {2126:['Omega','Omegagr']} -> {'Omega':2126, 'Omegagr':2126}
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# {2126:'Omega'} -> {'Omega':2126}
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m = {}
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if len(ucToNames) == 0:
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return m
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lists = True
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for v in ucToNames.itervalues():
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lists = not isinstance(v, str)
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break
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if lists:
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for uc, names in ucToNames.iteritems():
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for name in names:
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m[name] = uc
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else:
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for uc, name in ucToNames.iteritems():
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m[name] = uc
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return m
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def getGlyphNameDifferenceMap(srcCharMap, dstCharMap, dstRevCharMap):
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m = {} # { 'Omegagreek': 'Omega', ... }
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for uc, srcName in srcCharMap.iteritems():
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dstNames = dstCharMap.get(uc)
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if dstNames is not None and len(dstNames) > 0:
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if len(dstNames) != 1:
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print('warning: ignoring multi-glyph map for U+%04X in source font' % uc)
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dstName = dstNames[0]
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if srcName != dstName and srcName not in dstRevCharMap:
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# Only include names that differ. also, The `srcName not in dstRevCharMap` condition
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# makes sure that we don't rename glyphs that are already valid.
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m[srcName] = dstName
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return m
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def fixupGroups(fontPath, dstGlyphNames, srcToDstMap, dryRun, stats):
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filename = os.path.join(fontPath, 'groups.plist')
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groups = plistlib.readPlist(filename)
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groups2 = {}
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glyphToGroups = {}
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for groupName, glyphNames in groups.iteritems():
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glyphNames2 = []
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for glyphName in glyphNames:
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if glyphName in srcToDstMap:
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gn2 = srcToDstMap[glyphName]
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stats.renamedGlyphs[glyphName] = gn2
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glyphName = gn2
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if glyphName in dstGlyphNames:
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glyphNames2.append(glyphName)
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glyphToGroups[glyphName] = glyphToGroups.get(glyphName, []) + [groupName]
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else:
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stats.removedGlyphs.add(glyphName)
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if len(glyphNames2) > 0:
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groups2[groupName] = glyphNames2
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else:
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stats.removedGroups.add(groupName)
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print('Writing', filename)
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if not dryRun:
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plistlib.writePlist(groups2, filename)
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return groups2, glyphToGroups
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def fixupKerning(fontPath, dstGlyphNames, srcToDstMap, groups, glyphToGroups, dryRun, stats):
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filename = os.path.join(fontPath, 'kerning.plist')
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kerning = plistlib.readPlist(filename)
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kerning2 = {}
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groupPairs = {} # { "lglyphname+lglyphname": ("lgroupname"|"", "rgroupname"|"", 123) }
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# pairs = {} # { "name+name" => 123 }
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for leftName, right in kerning.items():
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leftIsGroup = leftName[0] == '@'
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leftGroupNames = None
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if leftIsGroup:
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# left is a group
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if leftName not in groups:
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# dead group -- skip
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stats.removedGroups.add(leftName)
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continue
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leftGroupNames = groups[leftName]
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else:
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if leftName in srcToDstMap:
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leftName2 = srcToDstMap[leftName]
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stats.renamedGlyphs[leftName] = leftName2
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leftName = leftName2
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if leftName not in dstGlyphNames:
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# dead glyphname -- skip
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stats.removedGlyphs.add(leftName)
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continue
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right2 = {}
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rightGroupNamesAndValues = []
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for rightName, kerningValue in right.iteritems():
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rightIsGroup = rightName[0] == '@'
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if rightIsGroup:
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if leftIsGroup and leftGroupNames is None:
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leftGroupNames = [leftName]
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if rightName in groups:
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right2[rightName] = kerningValue
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rightGroupNamesAndValues.append((groups[rightName], rightName, kerningValue))
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else:
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stats.removedGroups.add(rightName)
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else:
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if rightName in srcToDstMap:
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rightName2 = srcToDstMap[rightName]
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stats.renamedGlyphs[rightName] = rightName2
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rightName = rightName2
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if rightName in dstGlyphNames:
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right2[rightName] = kerningValue
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if leftIsGroup:
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rightGroupNamesAndValues.append(([rightName], '', kerningValue))
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else:
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stats.removedGlyphs.add(rightName)
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if len(right2):
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kerning2[leftName] = right2
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# update groupPairs
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lgroupname = leftName if rightIsGroup else ''
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if leftIsGroup:
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for lname in leftGroupNames:
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kPrefix = lname + '+'
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for rnames, rgroupname, kernv in rightGroupNamesAndValues:
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for rname in rnames:
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k = kPrefix + rname
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v = (lgroupname, rgroupname, kernv)
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if k in groupPairs:
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raise Exception('duplicate group pair %s: %r and %r' % (k, groupPairs[k], v))
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groupPairs[k] = v
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elif leftIsGroup:
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stats.removedGroups.add(leftName)
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else:
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stats.removedGlyphs.add(leftName)
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# print('groupPairs:', groupPairs)
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# remove individual pairs that are already represented through groups
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kerning = kerning2
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kerning2 = {}
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for leftName, right in kerning.items():
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leftIsGroup = leftName[0] == '@'
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# leftNames = groups[leftName] if leftIsGroup else [leftName]
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if not leftIsGroup:
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right2 = {}
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for rightName, kernVal in right.iteritems():
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rightIsGroup = rightName[0] == '@'
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if not rightIsGroup:
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k = leftName + '+' + rightName
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if k in groupPairs:
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groupPair = groupPairs[k]
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print(('simplify individual pair %r: kern %r (individual) -> %r (group)') % (
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k, kernVal, groupPair[2]))
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stats.simplifiedKerningPairs.add(k)
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else:
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right2[rightName] = kernVal
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else:
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right2[rightName] = kernVal
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else:
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# TODO, probably
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right2 = right
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kerning2[leftName] = right2
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print('Writing', filename)
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if not dryRun:
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plistlib.writePlist(kerning2, filename)
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return kerning2
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def loadJSONCharMap(filename):
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m = None
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if filename == '-':
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m = json.load(sys.stdin)
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else:
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with open(filename, 'r') as f:
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m = json.load(f)
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if not isinstance(m, dict):
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raise Exception('json root is not a dict')
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if len(m) > 0:
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for k, v in m.iteritems():
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if not isinstance(k, int) and not isinstance(k, float):
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raise Exception('json dict key is not a number')
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if not isinstance(v, str):
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raise Exception('json dict value is not a string')
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break
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return m
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class Stats:
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def __init__(self):
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self.removedGroups = set()
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self.removedGlyphs = set()
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self.simplifiedKerningPairs = set()
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self.renamedGlyphs = {}
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def configFindResFile(config, basedir, name):
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fn = os.path.join(basedir, config.get("res", name))
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if not os.path.isfile(fn):
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basedir = os.path.dirname(basedir)
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fn = os.path.join(basedir, config.get("res", name))
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if not os.path.isfile(fn):
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fn = None
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return fn
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def main():
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jsonSchemaDescr = '{[unicode:int]: glyphname:string, ...}'
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argparser = ArgumentParser(
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description='Rename glyphnames in UFO kerning and remove unused groups and glyphnames.')
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argparser.add_argument(
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'-dry', dest='dryRun', action='store_const', const=True, default=False,
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help='Do not modify anything, but instead just print what would happen.')
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argparser.add_argument(
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'-no-stats', dest='noStats', action='store_const', const=True, default=False,
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help='Do not print statistics at the end.')
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argparser.add_argument(
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'-save-stats', dest='saveStatsPath', metavar='<file>', type=str,
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help='Write detailed statistics to JSON file.')
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argparser.add_argument(
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'-src-json', dest='srcJSONFile', metavar='<file>', type=str,
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help='JSON file to read glyph names from.'+
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' Expected schema: ' + jsonSchemaDescr + ' (e.g. {2126: "Omega"})')
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argparser.add_argument(
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'-src-font', dest='srcFontFile', metavar='<file>', type=str,
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help='TrueType or OpenType font to read glyph names from.')
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argparser.add_argument(
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'dstFontsPaths', metavar='<ufofile>', type=str, nargs='+', help='UFO fonts to update')
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args = argparser.parse_args()
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dryRun = args.dryRun
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if args.srcJSONFile and args.srcFontFile:
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argparser.error('Both -src-json and -src-font specified -- please provide only one.')
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# Strip trailing slashes from font paths
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args.dstFontsPaths = [s.rstrip('/ ') for s in args.dstFontsPaths]
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# Load source char map
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srcCharMap = None
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if args.srcJSONFile:
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try:
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srcCharMap = loadJSONCharMap(args.srcJSONFile)
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except Exception as err:
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argparser.error('Invalid JSON: Expected schema %s (%s)' % (jsonSchemaDescr, err))
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elif args.srcFontFile:
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srcCharMap = getTTCharMap(args.srcFontFile.rstrip('/ ')) # -> { 2126: 'Omegagreek', ...}
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else:
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argparser.error('No source provided (-src-* argument missing)')
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if len(srcCharMap) == 0:
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print('Empty character map', file=sys.stderr)
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sys.exit(1)
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# Find project source dir
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srcDir = ''
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for dstFontPath in args.dstFontsPaths:
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s = os.path.dirname(dstFontPath)
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if not srcDir:
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srcDir = s
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elif srcDir != s:
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raise Exception('All <ufofile>s must be rooted in the same directory')
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# Load font project config
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# load fontbuild configuration
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config = RawConfigParser(dict_type=OrderedDict)
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configFilename = os.path.join(srcDir, 'fontbuild.cfg')
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config.read(configFilename)
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diacriticsFile = configFindResFile(config, srcDir, 'diacriticfile')
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for dstFontPath in args.dstFontsPaths:
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dstFont = OpenFont(dstFontPath)
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dstCharMap = dstFont.getCharacterMapping() # -> { 2126: [ 'Omega', ...], ...}
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dstRevCharMap = revCharMap(dstCharMap) # { 'Omega': 2126, ...}
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srcToDstMap = getGlyphNameDifferenceMap(srcCharMap, dstCharMap, dstRevCharMap)
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stats = Stats()
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groups, glyphToGroups = fixupGroups(dstFontPath, dstRevCharMap, srcToDstMap, dryRun, stats)
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fixupKerning(dstFontPath, dstRevCharMap, srcToDstMap, groups, glyphToGroups, dryRun, stats)
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# stats
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if args.saveStatsPath or not args.noStats:
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if not args.noStats:
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print('stats for %s:' % dstFontPath)
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print(' Deleted %d groups and %d glyphs.' % (
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len(stats.removedGroups), len(stats.removedGlyphs)))
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print(' Renamed %d glyphs.' % len(stats.renamedGlyphs))
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print(' Simplified %d kerning pairs.' % len(stats.simplifiedKerningPairs))
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if args.saveStatsPath:
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statsObj = {
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'deletedGroups': stats.removedGroups,
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'deletedGlyphs': stats.removedGlyphs,
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'simplifiedKerningPairs': stats.simplifiedKerningPairs,
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'renamedGlyphs': stats.renamedGlyphs,
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}
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f = sys.stdout
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try:
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if args.saveStatsPath != '-':
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f = open(args.saveStatsPath, 'w')
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print('Writing stats to', args.saveStatsPath)
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json.dump(statsObj, sys.stdout, indent=2, separators=(',', ': '))
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finally:
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if f is not sys.stdout:
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f.close()
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if __name__ == '__main__':
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main()
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