def closeGlyphsOverGSUB(gsub, glyphs):
    """ Use the FontTools subsetter to perform a closure over the GSUB table
    given the initial `glyphs` (set of glyph names, str). Update the set
    in-place adding all the glyph names that can be reached via GSUB
    substitutions from this initial set.
    """
    subsetter = subset.Subsetter()
    subsetter.glyphs = glyphs
    gsub.closure_glyphs(subsetter)
def closeGlyphsOverGSUB ( gsub , glyphs ) : subsetter = subset . Subsetter ( ) subsetter . glyphs = glyphs gsub . closure_glyphs ( subsetter )
Use the FontTools subsetter to perform a closure over the GSUB table
    given the initial `glyphs` (set of glyph names, str). Update the set
    in-place adding all the glyph names that can be reached via GSUB
    substitutions from this initial set.