1 files changed, 0 insertions, 112 deletions
diff --git a/scripts/lib/fontbuild/kerning.py b/scripts/lib/fontbuild/kerning.py
deleted file mode 100644
index c93e303..0000000
--- a/scripts/lib/fontbuild/kerning.py
+++ /dev/null
@@ -1,112 +0,0 @@
-# Copyright 2015 Google Inc. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-
-from feaTools import parser
-from feaTools.writers.baseWriter import AbstractFeatureWriter
-
-
-class KernFeatureWriter(AbstractFeatureWriter):
-    """Generates a kerning feature based on glyph class definitions.
-
-    Uses the kerning rules contained in an RFont's kerning attribute, as well as
-    glyph classes from parsed OTF text. Class-based rules are set based on the
-    existing rules for their key glyphs.
-    """
-
-    def __init__(self, font):
-        self.kerning = font.kerning
-        self.leftClasses = []
-        self.rightClasses = []
-        self.classSizes = {}
-
-    def write(self, linesep="\n"):
-        """Write kern feature."""
-
-        # maintain collections of different rule types
-        leftClassKerning, rightClassKerning, classPairKerning = {}, {}, {}
-        for leftName, leftContents in self.leftClasses:
-            leftKey = leftContents[0]
-
-            # collect rules with two classes
-            for rightName, rightContents in self.rightClasses:
-                rightKey = rightContents[0]
-                pair = leftKey, rightKey
-                kerningVal = self.kerning[pair]
-                if kerningVal is None:
-                    continue
-                classPairKerning[leftName, rightName] = kerningVal
-                self.kerning.remove(pair)
-
-            # collect rules with left class and right glyph
-            for pair, kerningVal in self.kerning.getLeft(leftKey):
-                leftClassKerning[leftName, pair[1]] = kerningVal
-                self.kerning.remove(pair)
-
-        # collect rules with left glyph and right class
-        for rightName, rightContents in self.rightClasses:
-            rightKey = rightContents[0]
-            for pair, kerningVal in self.kerning.getRight(rightKey):
-                rightClassKerning[pair[0], rightName] = kerningVal
-                self.kerning.remove(pair)
-
-        # write the feature
-        self.ruleCount = 0
-        lines = ["feature kern {"]
-        lines.append(self._writeKerning(self.kerning, linesep))
-        lines.append(self._writeKerning(leftClassKerning, linesep, True))
-        lines.append(self._writeKerning(rightClassKerning, linesep, True))
-        lines.append(self._writeKerning(classPairKerning, linesep))
-        lines.append("} kern;")
-        return linesep.join(lines)
-
-    def _writeKerning(self, kerning, linesep, enum=False):
-        """Write kerning rules for a mapping of pairs to values."""
-
-        lines = []
-        enum = "enum " if enum else ""
-        pairs = kerning.items()
-        pairs.sort()
-        for (left, right), val in pairs:
-            if enum:
-                rulesAdded = (self.classSizes.get(left, 1) *
-                              self.classSizes.get(right, 1))
-            else:
-                rulesAdded = 1
-            self.ruleCount += rulesAdded
-            if self.ruleCount > 1024:
-                lines.append("    subtable;")
-                self.ruleCount = rulesAdded
-            lines.append("    %spos %s %s %d;" % (enum, left, right, val))
-        return linesep.join(lines)
-
-    def classDefinition(self, name, contents):
-        """Store a class definition as either a left- or right-hand class."""
-
-        if not name.startswith("@_"):
-            return
-        info = (name, contents)
-        if name.endswith("_L"):
-            self.leftClasses.append(info)
-        elif name.endswith("_R"):
-            self.rightClasses.append(info)
-        self.classSizes[name] = len(contents)
-
-
-def makeKernFeature(font, text):
-    """Add a kern feature to the font, using a KernFeatureWriter."""
-
-    writer = KernFeatureWriter(font)
-    parser.parseFeatures(writer, text)
-    font.features.text += writer.write()