Intermediate changes

commit_hash:694a59b7c082431d781edd4484f72ab37faca2cd

Author: robot-piglet

contrib/python/fonttools/.dist-info/METADATA

@@ -1,6 +1,6 @@
 Metadata-Version: 2.4
 Name: fonttools
-Version: 4.58.1
+Version: 4.58.2
 Summary: Tools to manipulate font files
 Home-page: http://github.com/fonttools/fonttools
 Author: Just van Rossum
@@ -388,6 +388,12 @@ Have fun!
 Changelog
 ~~~~~~~~~
 
+4.58.2 (released 2025-06-06)
+----------------------------
+
+- [ttLib.reorderGlyphs] Handle CFF2 when reordering glyphs (#3852)
+- [subset] Copy name IDs in use before scrapping or scrambling them for webfonts (#3853)
+
 4.58.1 (released 2025-05-28)
 ----------------------------
 

contrib/python/fonttools/fontTools/__init__.py

@@ -3,6 +3,6 @@
 
 log = logging.getLogger(__name__)
 
-version = __version__ = "4.58.1"
+version = __version__ = "4.58.2"
 
 __all__ = ["version", "log", "configLogger"]

contrib/python/fonttools/fontTools/subset/__init__.py

@@ -2,6 +2,8 @@
 #
 # Google Author(s): Behdad Esfahbod
 
+from __future__ import annotations
+
 from fontTools import config
 from fontTools.misc.roundTools import otRound
 from fontTools import ttLib
@@ -15,7 +17,7 @@
 from fontTools.subset.cff import *
 from fontTools.subset.svg import *
 from fontTools.varLib import varStore, multiVarStore  # For monkey-patching
-from fontTools.ttLib.tables._n_a_m_e import NameRecordVisitor
+from fontTools.ttLib.tables._n_a_m_e import NameRecordVisitor, makeName
 from fontTools.unicodedata import mirrored
 import sys
 import struct
@@ -3004,6 +3006,9 @@ def prune_pre_subset(self, font, options):
     return True
 
 
+NAME_IDS_TO_OBFUSCATE = {1, 2, 3, 4, 6, 16, 17, 18}
+
+
 @_add_method(ttLib.getTableClass("name"))
 def prune_post_subset(self, font, options):
     visitor = NameRecordVisitor()
@@ -3022,6 +3027,11 @@ def prune_post_subset(self, font, options):
         self.names = [n for n in self.names if n.langID in options.name_languages]
     if options.obfuscate_names:
         namerecs = []
+        # Preserve names to be scrambled or dropped elsewhere so that other
+        # parts of the font don't break.
+        needRemapping = visitor.seen.intersection(NAME_IDS_TO_OBFUSCATE)
+        if needRemapping:
+            _remap_select_name_ids(font, needRemapping)
         for n in self.names:
             if n.nameID in [1, 4]:
                 n.string = ".\x7f".encode("utf_16_be") if n.isUnicode() else ".\x7f"
@@ -3036,6 +3046,76 @@ def prune_post_subset(self, font, options):
     return True  # Required table
 
 
+def _remap_select_name_ids(font: ttLib.TTFont, needRemapping: set[int]) -> None:
+    """Remap a set of IDs so that the originals can be safely scrambled or
+    dropped.
+
+    For each name record whose name id is in the `needRemapping` set, make a copy
+    and allocate a new unused name id in the font-specific range (> 255).
+
+    Finally update references to these in the `fvar` and `STAT` tables.
+    """
+
+    if "fvar" not in font and "STAT" not in font:
+        return
+
+    name = font["name"]
+
+    # 1. Assign new IDs for names to be preserved.
+    existingIds = {record.nameID for record in name.names}
+    remapping = {}
+    nextId = name._findUnusedNameID() - 1  # Should skip gaps in name IDs.
+    for nameId in needRemapping:
+        nextId += 1  # We should have complete freedom until 32767.
+        assert nextId not in existingIds, "_findUnusedNameID did not skip gaps"
+        if nextId > 32767:
+            raise ValueError("Ran out of name IDs while trying to remap existing ones.")
+        remapping[nameId] = nextId
+
+    # 2. Copy records to use the new ID. We can't rewrite them in place, because
+    #    that could make IDs 1 to 6 "disappear" from code that follows. Some
+    #    tools that produce EOT fonts expect them to exist, even when they're
+    #    scrambled. See https://github.com/fonttools/fonttools/issues/165.
+    copiedRecords = []
+    for record in name.names:
+        if record.nameID not in needRemapping:
+            continue
+        recordCopy = makeName(
+            record.string,
+            remapping[record.nameID],
+            record.platformID,
+            record.platEncID,
+            record.langID,
+        )
+        copiedRecords.append(recordCopy)
+    name.names.extend(copiedRecords)
+
+    # 3. Rewrite the corresponding IDs in other tables. For now, care only about
+    #    STAT and fvar. If more tables need to be changed, consider adapting
+    #    NameRecordVisitor to rewrite IDs wherever it finds them.
+    fvar = font.get("fvar")
+    if fvar is not None:
+        for axis in fvar.axes:
+            axis.axisNameID = remapping.get(axis.axisNameID, axis.axisNameID)
+        for instance in fvar.instances:
+            nameID = instance.subfamilyNameID
+            instance.subfamilyNameID = remapping.get(nameID, nameID)
+            nameID = instance.postscriptNameID
+            instance.postscriptNameID = remapping.get(nameID, nameID)
+
+    stat = font.get("STAT")
+    if stat is None:
+        return
+    elidedNameID = stat.table.ElidedFallbackNameID
+    stat.table.ElidedFallbackNameID = remapping.get(elidedNameID, elidedNameID)
+    if stat.table.DesignAxisRecord:
+        for axis in stat.table.DesignAxisRecord.Axis:
+            axis.AxisNameID = remapping.get(axis.AxisNameID, axis.AxisNameID)
+    if stat.table.AxisValueArray:
+        for value in stat.table.AxisValueArray.AxisValue:
+            value.ValueNameID = remapping.get(value.ValueNameID, value.ValueNameID)
+
+
 @_add_method(ttLib.getTableClass("head"))
 def prune_post_subset(self, font, options):
     # Force re-compiling head table, to update any recalculated values.

contrib/python/fonttools/fontTools/ttLib/reorderGlyphs.py

@@ -275,10 +275,11 @@ def reorderGlyphs(font: ttLib.TTFont, new_glyph_order: List[str]):
                 for reorder in _REORDER_RULES.get(reorder_key, []):
                     reorder.apply(font, value)
 
-    if "CFF " in font:
-        cff_table = font["CFF "]
-        charstrings = cff_table.cff.topDictIndex[0].CharStrings.charStrings
-        cff_table.cff.topDictIndex[0].charset = new_glyph_order
-        cff_table.cff.topDictIndex[0].CharStrings.charStrings = {
-            k: charstrings.get(k) for k in new_glyph_order
-        }
+    for tag in ["CFF ", "CFF2"]:
+        if tag in font:
+            cff_table = font[tag]
+            charstrings = cff_table.cff.topDictIndex[0].CharStrings.charStrings
+            cff_table.cff.topDictIndex[0].charset = new_glyph_order
+            cff_table.cff.topDictIndex[0].CharStrings.charStrings = {
+                k: charstrings.get(k) for k in new_glyph_order
+            }

contrib/python/fonttools/ya.make

@@ -2,7 +2,7 @@
 
 PY3_LIBRARY()
 
-VERSION(4.58.1)
+VERSION(4.58.2)
 
 LICENSE(MIT)