google-noto-emoji-fonts/noto-emoji-port-to-python3.patch

From e158cbe50e17dad1bd41c641d01f3c3989c083c6 Mon Sep 17 00:00:00 2001
From: Mike FABIAN <maiku.fabian@gmail.com>
Date: Wed, 17 Jul 2019 10:33:21 +0200
Subject: [PATCH 1/2] Make it work both with Python2 and Python3

---
 add_glyphs.py                            |  8 +--
 map_pua_emoji.py                         |  4 +-
 third_party/color_emoji/emoji_builder.py | 63 ++++++++++++++----------
 third_party/color_emoji/png.py           | 42 +++++++++++-----
 4 files changed, 73 insertions(+), 44 deletions(-)

diff --git a/add_glyphs.py b/add_glyphs.py
index a12b4401..b5918d42 100644
--- a/add_glyphs.py
+++ b/add_glyphs.py
@@ -66,7 +66,7 @@ def collect_seq_to_file(image_dirs, prefix, suffix):
 
 
 def remap_values(seq_to_file, map_fn):
-  return {k: map_fn(v) for k, v in seq_to_file.iteritems()}
+  return {k: map_fn(v) for k, v in seq_to_file.items()}
 
 
 def get_png_file_to_advance_mapper(lineheight):
@@ -280,7 +280,7 @@ def add_ligature_sequences(font, seqs, aliases):
     return
 
   rtl_seq_to_target_name = {
-      get_rtl_seq(seq): name for seq, name in seq_to_target_name.iteritems()}
+      get_rtl_seq(seq): name for seq, name in seq_to_target_name.items()}
   seq_to_target_name.update(rtl_seq_to_target_name)
   # sequences that don't have rtl variants get mapped to the empty sequence,
   # delete it.
@@ -289,7 +289,7 @@ def add_ligature_sequences(font, seqs, aliases):
 
   # organize by first codepoint in sequence
   keyed_ligatures = collections.defaultdict(list)
-  for t in seq_to_target_name.iteritems():
+  for t in seq_to_target_name.items():
     first_cp = t[0][0]
     keyed_ligatures[first_cp].append(t)
 
@@ -339,7 +339,7 @@ def apply_aliases(seq_dict, aliases):
   source is a key in the dictionary, we can delete it.  This updates the
   dictionary and returns the usable aliases."""
   usable_aliases = {}
-  for k, v in aliases.iteritems():
+  for k, v in aliases.items():
     if v in seq_dict:
       usable_aliases[k] = v
       if k in seq_dict:
diff --git a/map_pua_emoji.py b/map_pua_emoji.py
index aac031c5..ff8d6a9b 100644
--- a/map_pua_emoji.py
+++ b/map_pua_emoji.py
@@ -53,8 +53,8 @@ def add_pua_cmap(source_file, target_file):
     """Add PUA characters to the cmap of the first font and save as second."""
     font = ttLib.TTFont(source_file)
     cmap = font_data.get_cmap(font)
-    for pua, (ch1, ch2) in (add_emoji_gsub.EMOJI_KEYCAPS.items()
-                            + add_emoji_gsub.EMOJI_FLAGS.items()):
+    for pua, (ch1, ch2) in (list(add_emoji_gsub.EMOJI_KEYCAPS.items())
+                            + list(add_emoji_gsub.EMOJI_FLAGS.items())):
         if pua not in cmap:
             glyph_name = get_glyph_name_from_gsub([ch1, ch2], font)
             if glyph_name is not None:
diff --git a/third_party/color_emoji/emoji_builder.py b/third_party/color_emoji/emoji_builder.py
index 4157807e..7f17c62f 100644
--- a/third_party/color_emoji/emoji_builder.py
+++ b/third_party/color_emoji/emoji_builder.py
@@ -19,7 +19,7 @@
 
 
 from __future__ import print_function
-import sys, struct, StringIO
+import sys, struct
 from png import PNG
 import os
 from os import path
@@ -112,9 +112,9 @@ class CBDT:
 		line_height = (ascent + descent) * y_ppem / float (upem)
 		line_ascent = ascent * y_ppem / float (upem)
 		y_bearing = int (round (line_ascent - .5 * (line_height - height)))
-                # fudge y_bearing if calculations are a bit off
-                if y_bearing == 128:
-                  y_bearing = 127
+		# fudge y_bearing if calculations are a bit off
+		if y_bearing == 128:
+			y_bearing = 127
 		advance = width
 
 		vert_x_bearing = - width / 2
@@ -133,22 +133,22 @@ class CBDT:
 		# CHAR	vertBearingX
 		# CHAR	vertBearingY
 		# BYTE	vertAdvance
-                try:
-                  if big_metrics:
-                        self.write (struct.pack ("BBbbBbbB",
+		try:
+		  if big_metrics:
+		        self.write (struct.pack ("BBbbBbbB",
 					 height, width,
 					 x_bearing, y_bearing,
 					 advance,
 					 vert_x_bearing, vert_y_bearing,
 					 vert_advance))
-                  else:
-                        self.write (struct.pack ("BBbbB",
+		  else:
+		        self.write (struct.pack ("BBbbB",
 					 height, width,
 					 x_bearing, y_bearing,
 					 advance))
-                except Exception as e:
-                  raise ValueError("%s, h: %d w: %d x: %d y: %d %d a:" % (
-                      e, height, width, x_bearing, y_bearing, advance))
+		except Exception as e:
+		  raise ValueError("%s, h: %d w: %d x: %d y: %d %d a:" % (
+		      e, height, width, x_bearing, y_bearing, advance))
 
 	def write_format1 (self, png):
 
@@ -179,12 +179,15 @@ class CBDT:
 				self.write (pixel)
 			offset += stride
 
-	png_allowed_chunks =  ["IHDR", "PLTE", "tRNS", "sRGB", "IDAT", "IEND"]
+	png_allowed_chunks =  [
+		"IHDR", "PLTE", "tRNS", "sRGB", "IDAT", "IEND", # Python2
+		b"IHDR", b"PLTE", b"tRNS", b"sRGB", b"IDAT", b"IEND", # Python3
+	]
 
 	def write_format17 (self, png):
                 self.write_format17or18(png, False)
 
-        def write_format18 (self, png):
+	def write_format18 (self, png):
                 self.write_format17or18(png, True)
 
 	def write_format17or18 (self, png, big_metrics):
@@ -202,7 +205,7 @@ class CBDT:
 
 	def image_write_func (self, image_format):
 		if image_format == 1: return self.write_format1
-                if image_format == 17: return self.write_format17
+		if image_format == 17: return self.write_format17
 		if image_format == 18: return self.write_format18
 		return None
 
@@ -441,7 +444,10 @@ By default they are dropped.
 
 	def add_font_table (font, tag, data):
 		tab = ttLib.tables.DefaultTable.DefaultTable (tag)
-		tab.data = str(data)
+		if sys.version_info >= (3, 0, 0):
+			tab.data = data
+		else:
+			tab.data = str(data)
 		font[tag] = tab
 
 	def drop_outline_tables (font):
@@ -478,7 +484,7 @@ By default they are dropped.
 	eblc.write_header ()
 	eblc.start_strikes (len (img_prefixes))
 
-        def is_vs(cp):
+	def is_vs(cp):
                 return cp >= 0xfe00 and cp <= 0xfe0f
 
 	for img_prefix in img_prefixes:
@@ -491,14 +497,20 @@ By default they are dropped.
 			codes = img_file[len (img_prefix):-4]
 			if "_" in codes:
 				pieces = codes.split ("_")
-                                cps = [int(code, 16) for code in pieces]
-				uchars = "".join ([unichr(cp) for cp in cps if not is_vs(cp)])
+				cps = [int(code, 16) for code in pieces]
+				if sys.version_info >= (3, 0, 0):
+					uchars = "".join ([chr(cp) for cp in cps if not is_vs(cp)])
+				else:
+					uchars = "".join ([unichr(cp) for cp in cps if not is_vs(cp)])
 			else:
-                                cp = int(codes, 16)
-                                if is_vs(cp):
-                                        print("ignoring unexpected vs input %04x" % cp)
-                                        continue
-				uchars = unichr(cp)
+				cp = int(codes, 16)
+				if is_vs(cp):
+				        print("ignoring unexpected vs input %04x" % cp)
+				        continue
+				if sys.version_info >= (3, 0, 0):
+					uchars = chr(cp)
+				else:
+					uchars = unichr(cp)
 			img_files[uchars] = img_file
 		if not img_files:
 			raise Exception ("No image files found in '%s'." % glb)
@@ -561,8 +573,7 @@ By default they are dropped.
         # hack removal of cmap pua entry for unknown flag glyph.  If we try to
         # remove it earlier, getGlyphID dies.  Need to restructure all of this
         # code.
-        font_data.delete_from_cmap(font, [0xfe82b])
-
+	font_data.delete_from_cmap(font, [0xfe82b])
 	font.save (out_file)
 	print("Output font '%s' generated." % out_file)
 
diff --git a/third_party/color_emoji/png.py b/third_party/color_emoji/png.py
index 20f849ae..f5d4c2d5 100644
--- a/third_party/color_emoji/png.py
+++ b/third_party/color_emoji/png.py
@@ -17,7 +17,12 @@
 # Google Author(s): Behdad Esfahbod
 #
 
-import struct, StringIO
+import struct
+import sys
+if sys.version_info >= (3,0,0): # Python3
+   from io import StringIO
+else:
+   from StringIO import StringIO
 
 
 class PNG:
@@ -26,7 +31,7 @@ class PNG:
 
 	def __init__ (self, f):
 
-		if isinstance(f, basestring):
+		if (isinstance(f, str) or isinstance(f, type(u''))):
 			f = open (f, 'rb')
 
 		self.f = f
@@ -43,7 +48,10 @@ class PNG:
 
 	def data (self):
 		self.seek (0)
-		return bytearray (self.f.read ())
+		if sys.version_info >= (3,0,0): # Python3
+			return bytearray (self.f.read (), 'iso-8859-1')
+		else:
+			return bytearray (self.f.read ())
 
 	class BadSignature (Exception): pass
 	class BadChunk (Exception): pass
@@ -55,7 +63,8 @@ class PNG:
 		return PNG.signature
 
 	def read_chunk (self):
-		length = struct.unpack (">I", self.f.read (4))[0]
+		buf = self.f.read (4)
+		length = struct.unpack (">I", buf)[0]
 		chunk_type = self.f.read (4)
 		chunk_data = self.f.read (length)
 		if len (chunk_data) != length:
@@ -67,7 +76,7 @@ class PNG:
 
 	def read_IHDR (self):
 		(chunk_type, chunk_data, crc) = self.read_chunk ()
-		if chunk_type != "IHDR":
+		if chunk_type not in ("IHDR", b"IHDR"):
 			raise PNG.BadChunk
 		#  Width:              4 bytes
 		#  Height:             4 bytes
@@ -93,15 +102,24 @@ class PNG:
 
 	def filter_chunks (self, chunks):
 		self.seek (0);
-		out = StringIO.StringIO ()
-		out.write (self.read_signature ())
+		out = StringIO ()
+		if sys.version_info >= (3,0,0): # Python3
+			out.write (self.read_signature ().decode('iso-8859-1'))
+		else:
+			out.write (self.read_signature ())
 		while True:
 			chunk_type, chunk_data, crc = self.read_chunk ()
 			if chunk_type in chunks:
-				out.write (struct.pack (">I", len (chunk_data)))
-				out.write (chunk_type)
-				out.write (chunk_data)
-				out.write (crc)
-			if chunk_type == "IEND":
+				if sys.version_info >= (3,0,0): # Python3
+					out.write (struct.pack (">I", len (chunk_data)).decode('iso-8859-1'))
+					out.write (chunk_type.decode('iso-8859-1'))
+					out.write (chunk_data.decode('iso-8859-1'))
+					out.write (crc.decode('iso-8859-1'))
+				else:
+					out.write (struct.pack (">I", len (chunk_data)))
+					out.write (chunk_type)
+					out.write (chunk_data)
+					out.write (crc)
+			if chunk_type in ("IEND", b"IEND"):
 				break
 		return PNG (out)
-- 
2.21.0