def makeWeb(infile, outfile):
"""If we are building a web version then try to minimise file size"""
# "short-post" generates a post table without glyph names to save some KBs
# since glyph names are only needed for PDF's as readers use them to
# "guess" characters when copying text, which is of little use in web fonts.
flags = ("opentype", "short-post", "omit-instructions")
fontforge.setPrefs("PreserveTables", "COLR,CPAL")
font = fontforge.open(infile)
font.encoding = "UnicodeBmp" # avoid a crash if compact was set
# removed compatibility glyphs that of little use on the web
compat_ranges = (
(0xfb50, 0xfbb1),
(0xfbd3, 0xfd3d),
(0xfd50, 0xfdf9),
(0xfdfc, 0xfdfc),
(0xfe70, 0xfefc),
)
for glyph in font.glyphs():
for i in compat_ranges:
start = i[0]
end = i[1]
if start <= glyph.unicode <= end:
font.removeGlyph(glyph)
break
tmpfile = mkstemp(suffix=os.path.basename(outfile))[1]
font.generate(tmpfile, flags=flags)
font.close()
# now open in fontTools
from fontTools.ttLib import TTFont
ftfont = TTFont(tmpfile)
# force compiling tables by fontTools, saves few tens of KBs
for tag in ftfont.keys():
if hasattr(ftfont[tag], "compile"):
ftfont[tag].compile(ftfont)
ftfont.save(outfile)
ftfont.close()
os.remove(tmpfile)
def makeWeb(infile, outfile):
"""If we are building a web version then try to minimise file size"""
# "short-post" generates a post table without glyph names to save some KBs
# since glyph names are only needed for PDF's as readers use them to
# "guess" characters when copying text, which is of little use in web fonts.
flags = ("opentype", "short-post", "omit-instructions")
fontforge.setPrefs("PreserveTables", "COLR,CPAL")
font = fontforge.open(infile)
font.encoding = "UnicodeBmp" # avoid a crash if compact was set
# removed compatibility glyphs that of little use on the web
compat_ranges = (
(0xfb50, 0xfbb1),
(0xfbd3, 0xfd3d),
(0xfd50, 0xfdf9),
(0xfdfc, 0xfdfc),
(0xfe70, 0xfefc),
)
for glyph in font.glyphs():
for i in compat_ranges:
start = i[0]
end = i[1]
if start <= glyph.unicode <= end:
font.removeGlyph(glyph)
break
tmpfile = mkstemp(suffix=os.path.basename(outfile))[1]
font.generate(tmpfile, flags=flags)
font.close()
# now open in fontTools
from fontTools.ttLib import TTFont
ftfont = TTFont(tmpfile)
# force compiling tables by fontTools, saves few tens of KBs
for tag in ftfont.keys():
if hasattr(ftfont[tag], "compile"):
ftfont[tag].compile(ftfont)
ftfont.save(outfile)
ftfont.close()
os.remove(tmpfile)
def makeWeb(infile, outfile):
"""If we are building a web version then try to minimise file size"""
# "short-post" generates a post table without glyph names to save some KBs
# since glyph names are only needed for PDF's as readers use them to
# "guess" characters when copying text, which is of little use in web fonts.
flags = ("opentype", "short-post", "omit-instructions")
fontforge.setPrefs("PreserveTables", "COLR,CPAL")
font = fontforge.open(infile)
font.encoding = "UnicodeBmp" # avoid a crash if compact was set
# removed compatibility glyphs that of little use on the web
compat_ranges = (
(0xfb50, 0xfbb1),
(0xfbd3, 0xfd3d),
(0xfd50, 0xfdf9),
(0xfdfc, 0xfdfc),
(0xfe70, 0xfefc),
)
for glyph in font.glyphs():
for i in compat_ranges:
start = i[0]
end = i[1]
if start <= glyph.unicode <= end:
font.removeGlyph(glyph)
break
tmpfile = mkstemp(suffix=os.path.basename(outfile))[1]
font.generate(tmpfile, flags=flags)
font.close()
# now open in fontTools
from fontTools.ttLib import TTFont
ftfont = TTFont(tmpfile)
# our 'name' table is a bit bulky, and of almost no use in for web fonts,
# so we strip all unnecessary entries.
name = ftfont['name']
names = []
for record in name.names:
platID = record.platformID
langID = record.langID
nameID = record.nameID
# we keep only en_US entries in Windows and Mac platform id, every
# thing else is dropped
if (platID == 1 and langID == 0) or (platID == 3 and langID == 1033):
if nameID == 13:
# the full OFL text is too much, replace it with a simple
# string
if platID == 3:
# MS strings are UTF-16 encoded
text = 'OFL v1.1'.encode('utf_16_be')
else:
text = 'OFL v1.1'
record.string = text
names.append(record)
# keep every thing else except Descriptor, Sample Text
elif nameID not in (10, 19):
names.append(record)
name.names = names
# force compiling tables by fontTools, saves few tens of KBs
for tag in ftfont.keys():
if hasattr(ftfont[tag], "compile"):
ftfont[tag].compile(ftfont)
ftfont.save(outfile)
ftfont.close()
os.remove(tmpfile)
