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https://github.com/rsms/inter.git
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432 lines
15 KiB
Python
432 lines
15 KiB
Python
#!/usr/bin/env python
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# encoding: utf8
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#
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# This script was used specifically to re-introduce a bunch of kerning values
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# that where lost in an old kerning cleanup that failed to account for
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# automatically composed glyphs defined in diacritics.txt.
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#
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# Steps:
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# 1. git diff 10e15297b 10e15297b^ > 10e15297b.diff
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# 2. edit 10e15297b.diff and remove the python script add
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# 3. fetch copies of kerning.plist and groups.plist from before the loss change
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# bold-groups.plist
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# bold-kerning.plist
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# regular-groups.plist
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# regular-kerning.plist
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# 4. run this script
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#
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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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srcFontPaths = ['src/Interface-Regular.ufo', 'src/Interface-Bold.ufo']
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def getTTGlyphList(font): # -> { 'Omega': [2126, ...], ... }
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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 glyphname in gl:
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gl[glyphname].append(cp)
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else:
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gl[glyphname] = [cp]
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return gl, font
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def parseAGL(filename): # -> { 2126: 'Omega', ... }
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m = {}
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with open(filename, 'r') as f:
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for line in f:
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# Omega;2126
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# dalethatafpatah;05D3 05B2 # higher-level combinations; ignored
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line = line.strip()
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if len(line) > 0 and line[0] != '#':
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name, uc = tuple([c.strip() for c in line.split(';')])
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if uc.find(' ') == -1:
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# it's a 1:1 mapping
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m[int(uc, 16)] = name
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return m
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def parseGlyphComposition(composite):
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c = composite.split("=")
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d = c[1].split("/")
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glyphName = d[0]
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if len(d) == 1:
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offset = [0, 0]
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else:
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offset = [int(i) for i in d[1].split(",")]
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accentString = c[0]
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accents = accentString.split("+")
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baseName = accents.pop(0)
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accentNames = [i.split(":") for i in accents]
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return (glyphName, baseName, accentNames, offset)
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def loadGlyphCompositions(filename):
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compositions = OrderedDict()
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with open(filename, 'r') as f:
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for line in f:
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line = line.strip()
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if len(line) > 0 and line[0] != '#':
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glyphName, baseName, accentNames, offset = parseGlyphComposition(line)
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compositions[glyphName] = (baseName, accentNames, offset)
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return compositions
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def loadNamesFromDiff(diffFilename):
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with open(diffFilename, 'r') as f:
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diffLines = [s.strip() for s in f.read().splitlines() if s.startswith('+\t')]
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diffLines = [s for s in diffLines if not s.startswith('<int')]
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namesInDiff = set()
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for s in diffLines:
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if s.startswith('<int') or s.startswith('<arr') or s.startswith('</'):
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continue
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p = s.find('>')
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if p != -1:
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p2 = s.find('<', p+1)
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if p2 != -1:
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name = s[p+1:p2]
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try:
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int(name)
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except:
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if not name.startswith('@'):
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namesInDiff.add(s[p+1:p2])
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return namesInDiff
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def loadGroups(filename):
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groups = plistlib.readPlist(filename)
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nameMap = {} # { glyphName => set(groupName) }
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for groupName, glyphNames in groups.iteritems():
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for glyphName in glyphNames:
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nameMap.setdefault(glyphName, set()).add(groupName)
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return groups, nameMap
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def loadKerning(filename):
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kerning = plistlib.readPlist(filename)
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# <dict>
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# <key>@KERN_LEFT_A</key>
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# <dict>
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# <key>@KERN_RIGHT_C</key>
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# <integer>-96</integer>
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leftIndex = {} # { glyph-name => <ref to plist right-hand side dict> }
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rightIndex = {} # { glyph-name => [(left-hand-side-name, kernVal), ...] }
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rightGroupIndex = {} # { group-name => [(left-hand-side-name, kernVal), ...] }
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for leftName, right in kerning.iteritems():
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if leftName[0] != '@':
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leftIndex[leftName] = right
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for rightName, kernVal in right.iteritems():
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if rightName[0] != '@':
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rightIndex.setdefault(rightName, []).append((leftName, kernVal))
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else:
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rightGroupIndex.setdefault(rightName, []).append((leftName, kernVal))
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return kerning, leftIndex, rightIndex, rightGroupIndex
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def loadAltNamesDB(agl, fontFilename):
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uc2names = {} # { 2126: ['Omega', ...], ...}
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name2ucs = {} # { 'Omega': [2126, ...], ...}
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name2ucs, _ = getTTGlyphList(fontFilename)
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# -> { 'Omega': [2126, ...], ... }
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for name, ucs in name2ucs.iteritems():
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for uc in ucs:
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uc2names.setdefault(uc, []).append(name)
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for uc, name in agl.iteritems():
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name2ucs.setdefault(name, []).append(uc)
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uc2names.setdefault(uc, []).append(name)
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# -> { 2126: 'Omega', ... }
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return uc2names, name2ucs
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def loadLocalNamesDB(agl, diacriticComps): # { 2126: ['Omega', ...], ...}
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uc2names = None
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for fontPath in srcFontPaths:
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font = OpenFont(fontPath)
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if uc2names is None:
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uc2names = font.getCharacterMapping() # { 2126: ['Omega', ...], ...}
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else:
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for uc, names in font.getCharacterMapping().iteritems():
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names2 = uc2names.get(uc, [])
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for name in names:
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if name not in names2:
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names2.append(name)
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uc2names[uc] = names2
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# agl { 2126: 'Omega', ...} -> { 'Omega': [2126, ...], ...}
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aglName2Ucs = {}
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for uc, name in agl.iteritems():
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aglName2Ucs.setdefault(name, []).append(uc)
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for glyphName, comp in diacriticComps.iteritems():
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for uc in aglName2Ucs.get(glyphName, []):
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names = uc2names.get(uc, [])
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if glyphName not in names:
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names.append(glyphName)
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uc2names[uc] = names
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name2ucs = {}
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for uc, names in uc2names.iteritems():
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for name in names:
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name2ucs.setdefault(name, set()).add(uc)
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return uc2names, name2ucs
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def _canonicalGlyphName(name, localName2ucs, localUc2Names, altName2ucs):
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ucs = localName2ucs.get(name)
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if ucs:
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return name, list(ucs)[0]
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ucs = altName2ucs.get(name)
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if ucs:
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for uc in ucs:
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localNames = localUc2Names.get(uc)
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if localNames and len(localNames):
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return localNames[0], uc
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return None, None
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def main():
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argparser = ArgumentParser(description='Restore lost kerning')
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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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'srcFont', metavar='<fontfile>', type=str,
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help='TrueType, OpenType or UFO fonts to gather glyph info from')
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argparser.add_argument(
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'diffFile', metavar='<diffile>', type=str, help='Diff file')
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args = argparser.parse_args()
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dryRun = args.dryRun
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agl = parseAGL('src/glyphlist.txt')
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diacriticComps = loadGlyphCompositions('src/diacritics.txt')
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altUc2names, altName2ucs = loadAltNamesDB(agl, args.srcFont)
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localUc2Names, localName2ucs = loadLocalNamesDB(agl, diacriticComps)
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canonicalGlyphName = lambda name: _canonicalGlyphName(
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name, localName2ucs, localUc2Names, altName2ucs)
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deletedNames = loadNamesFromDiff(args.diffFile) # 10e15297b.diff
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deletedDiacriticNames = OrderedDict()
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for glyphName, comp in diacriticComps.iteritems():
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if glyphName in deletedNames:
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deletedDiacriticNames[glyphName] = comp
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for fontPath in srcFontPaths:
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addedGroupNames = set()
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oldFilenamePrefix = 'regular'
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if fontPath.find('Bold') != -1:
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oldFilenamePrefix = 'bold'
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oldGroups, oldNameToGroups = loadGroups(
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oldFilenamePrefix + '-groups.plist')
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oldKerning, oldLIndex, oldRIndex, oldRGroupIndex = loadKerning(
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oldFilenamePrefix + '-kerning.plist')
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# lIndex : { name => <ref to plist right-hand side dict> }
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# rIndex : { name => [(left-hand-side-name, kernVal), ...] }
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currGroupFilename = os.path.join(fontPath, 'groups.plist')
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currKerningFilename = os.path.join(fontPath, 'kerning.plist')
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currGroups, currNameToGroups = loadGroups(currGroupFilename)
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currKerning, currLIndex, currRIndex, currRGroupIndex = loadKerning(currKerningFilename)
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for glyphName, comp in deletedDiacriticNames.iteritems():
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oldGroupMemberships = oldNameToGroups.get(glyphName)
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localGlyphName, localUc = canonicalGlyphName(glyphName)
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# if glyphName != 'dcaron':
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# continue # XXX DEBUG
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if localGlyphName is None:
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# glyph does no longer exist -- ignore
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print('[IGNORE]', glyphName)
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continue
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if oldGroupMemberships:
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# print('group', localGlyphName,
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# '=>', localUc,
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# 'in old group:', oldGroupMemberships, ', curr group:', currGroupMemberships)
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for oldGroupName in oldGroupMemberships:
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currGroup = currGroups.get(oldGroupName) # None|[glyphname, ...]
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# print('GM ', localGlyphName, oldGroupName, len(currGroup) if currGroup else 0)
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if currGroup is not None:
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if localGlyphName not in currGroup:
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# print('[UPDATE group]', oldGroupName, 'append', localGlyphName)
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currGroup.append(localGlyphName)
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else:
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# group does not currently exist
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if currNameToGroups.get(localGlyphName):
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raise Exception('TODO: case where glyph is in some current groups, but not the' +
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'original-named group')
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print('[ADD group]', oldGroupName, '=> [', localGlyphName, ']')
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currGroups[oldGroupName] = [localGlyphName]
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addedGroupNames.add(oldGroupName)
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# if oldGroupName in oldKerning:
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# print('TODO: effects of oldGroupName being in oldKerning:',
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# oldKerning[oldGroupName])
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if oldGroupName in oldRGroupIndex:
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print('TODO: effects of oldGroupName being in oldRGroupIndex:',
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oldRGroupIndex[oldGroupName])
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else: # if not oldGroupMemberships
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ucs = localName2ucs.get(glyphName)
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if not ucs:
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raise Exception(
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'TODO non-group, non-local name ' + glyphName + ' -- lookup in alt names')
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asLeft = oldLIndex.get(glyphName)
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atRightOf = oldRIndex.get(glyphName)
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# print('individual', glyphName,
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# '=>', ', '.join([str(uc) for uc in ucs]),
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# '\n as left:', asLeft is not None,
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# '\n at right of:', atRightOf is not None)
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if asLeft:
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currKern = currKerning.get(localGlyphName)
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if currKern is None:
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rightValues = {}
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for rightName, kernValue in asLeft.iteritems():
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if rightName[0] == '@':
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currGroup = currGroups.get(rightName)
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if currGroup and localGlyphName not in currGroup:
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rightValues[rightName] = kernValue
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else:
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localName, localUc = canonicalGlyphName(rightName)
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if localName:
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rightValues[localName] = kernValue
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if len(rightValues) > 0:
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print('[ADD currKerning]', localGlyphName, '=>', rightValues)
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currKerning[localGlyphName] = rightValues
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if atRightOf:
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for parentLeftName, kernVal in atRightOf:
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# print('atRightOf:', parentLeftName, kernVal)
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if parentLeftName[0] == '@':
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if parentLeftName in currGroups:
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k = currKerning.get(parentLeftName)
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if k:
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if localGlyphName not in k:
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print('[UPDATE currKerning g]',
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parentLeftName, '+= {', localGlyphName, ':', kernVal, '}')
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k[localGlyphName] = kernVal
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else:
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print('TODO: left-group is NOT in currKerning; left-group', parentLeftName)
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else:
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localParentLeftGlyphName, _ = canonicalGlyphName(parentLeftName)
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if localParentLeftGlyphName:
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k = currKerning.get(localParentLeftGlyphName)
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if k:
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if localGlyphName not in k:
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print('[UPDATE currKerning i]',
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localParentLeftGlyphName, '+= {', localGlyphName, ':', kernVal, '}')
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k[localGlyphName] = kernVal
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else:
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print('[ADD currKerning i]',
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localParentLeftGlyphName, '=> {', localGlyphName, ':', kernVal, '}')
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currKerning[localParentLeftGlyphName] = {localGlyphName: kernVal}
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for groupName in addedGroupNames:
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print('————————————————————————————————————————————')
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print('re-introduce group', groupName, 'to kerning')
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oldRKern = oldKerning.get(groupName)
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if oldRKern is not None:
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newRKern = {}
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for oldRightName, kernVal in oldRKern.iteritems():
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if oldRightName[0] == '@':
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if oldRightName in currGroups:
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newRKern[oldRightName] = kernVal
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else:
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# Note: (oldRightName in addedGroupNames) should always be False here
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# as we would have added it to currGroups already.
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print('[DROP group]', oldRightName, kernVal)
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if oldRightName in currGroups:
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del currGroups[oldRightName]
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else:
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localGlyphName, _ = canonicalGlyphName(oldRightName)
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if localGlyphName:
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newRKern[localGlyphName] = kernVal
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print('localGlyphName', localGlyphName)
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if len(newRKern):
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print('[ADD currKerning g]', groupName, newRKern)
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currKerning[groupName] = newRKern
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# oldRGroupIndex : { group-name => [(left-hand-side-name, kernVal), ...] }
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oldLKern = oldRGroupIndex.get(groupName)
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if oldLKern:
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for oldRightName, kernVal in oldLKern:
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if oldRightName[0] == '@':
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if oldRightName in currGroups:
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k = currKerning.get(oldRightName)
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if k is not None:
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print('[UPDATE kerning g]', oldRightName, '+= {', groupName, ':', kernVal, '}')
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k[groupName] = kernVal
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else:
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currKerning[oldRightName] = {groupName: kernVal}
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print('[ADD kerning g]', oldRightName, '= {', groupName, ':', kernVal, '}')
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else:
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localGlyphName, _ = canonicalGlyphName(oldRightName)
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if localGlyphName:
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k = currKerning.get(localGlyphName)
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if k is not None:
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print('[UPDATE kerning i]', localGlyphName, '+= {', groupName, ':', kernVal, '}')
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k[groupName] = kernVal
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else:
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currKerning[localGlyphName] = {groupName: kernVal}
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print('[ADD kerning i]', localGlyphName, '= {', groupName, ':', kernVal, '}')
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print('Write', currGroupFilename)
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if not dryRun:
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plistlib.writePlist(currGroups, currGroupFilename)
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print('Write', currKerningFilename)
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if not dryRun:
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plistlib.writePlist(currKerning, currKerningFilename)
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# end: for fontPath
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main()
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