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import sys, os, os.path, re, argparse, pprint, shutil
import yaml
try:
from yaml import CLoader as YamlLoader, CDumper as YamlDumper
except ImportError:
from yaml import Loader as YamlLoader, Dumper as YamlDumper
from collections import OrderedDict
from multiprocessing import Pool
from fontTools.ttLib import TTFont
def read_fvar_table(filename: str) -> {str:dict}:
font = TTFont(filename, recalcBBoxes=False, recalcTimestamp=False)
nametab = font["name"]
names = {}
for rec in nametab.names:
names[rec.nameID] = rec.toUnicode()
fvartab = font["fvar"]
axes = []
for a in fvartab.axes:
# axisTag
# axisNameID
# flags
# minValue
# defaultValue
# maxValue
d = a.__dict__
for k in list(d.keys()):
# replace name-table IDs with their values
if k.endswith('NameID'):
d[k[:-2]] = names[d[k]]
del d[k]
axes.append(d)
instances = []
for inst in fvartab.instances:
d = inst.__dict__
for k in list(d.keys()):
# replace name-table IDs with their values
if k.endswith('NameID'):
d[k[:-2]] = names[d[k]]
del d[k]
instances.append(d)
return OrderedDict(axes=axes, instances=instances)
def fmtstructured(tables: [dict], files: [str], cl: dict) -> str:
doc = {}
for i, tab in enumerate(tables):
file = files[i]
doc[file] = dict(tab)
cols = shutil.get_terminal_size((80, 20)).columns
if cl.format == 'yaml':
return yaml.dump(doc, Dumper=YamlDumper, width=cols)
return pprint.PrettyPrinter(indent=2, width=cols).pformat(doc)
def fmtplaintext(out: [str], header: [str], rows: [[str]]) -> str:
# calculate width needed for columns
colw = [0] * len(header)
for i, s in enumerate(header):
colw[i] = max(colw[i], len(s))
for row in rows:
for i, s in enumerate(row):
colw[i] = max(colw[i], len(s))
colglue, divglue, divchar = ' │ ', '─┼─', '─'
row_prefix, row_suffix, div_prefix = '', '\n', ''
if cl.format == 'md':
colglue, divglue, divchar = ' | ', ' | ', '-'
row_prefix, row_suffix, div_prefix = '| ', ' |\n', ':'
def format_row(row):
out.append(row_prefix)
out.append(colglue.join(['%-*s' % (colw[i], s) for i, s in enumerate(row)]))
out.append(row_suffix)
def format_divider():
out.append(row_prefix)
xs = [div_prefix + (divchar * (colw[i] - len(div_prefix))) for i in range(len(row))]
out.append(divglue.join(xs))
out.append(row_suffix)
format_row(header)
format_divider()
for row in rows:
format_row(row)
def build_axes(tables: [dict], files: [str]) -> ([str], [[str]]):
uniqueAxes1 = OrderedDict()
for i, tab in enumerate(tables):
file = files[i]
for a in tab["axes"]:
vals = OrderedDict(sorted(a.items())).values()
key = ' '.join([str(v) for v in vals])
d = uniqueAxes1.get(key, {})
filev = d.get('files', [])
d.update(a)
filev.append(file)
d['files'] = filev
uniqueAxes1[key] = d
uniqueAxes = dict() # {tag:[{axis, ...}]}
for a in uniqueAxes1.values():
v = uniqueAxes.get(a['axisTag'], [])
v.append(a)
uniqueAxes[a['axisTag']] = v
header = ['tag', 'name', 'flags', 'min', 'default', 'max', 'files']
rows = []
for axesForTag in uniqueAxes.values():
for a in axesForTag:
rows.append([
a["axisTag"],
a["axisName"],
str(a["flags"]),
str(a["minValue"]),
str(a["defaultValue"]),
str(a["maxValue"]),
', '.join(a["files"]),
])
return header, rows
def build_instances(tables: [dict], files: [str]) -> ([str], [[str]]):
axisTags = []
for axis in tables[0]["axes"]:
axisTags.append(axis["axisTag"])
header = axisTags + ['flags', 'postscriptName', 'subfamilyName', 'file']
rows = []
for i, tab in enumerate(tables):
file = files[i]
axes = tab['axes']
for inst in tab['instances']:
row = []
for axisTag in axisTags:
row.append(str(inst['coordinates'][axisTag]))
row.append(str(inst['flags']))
row.append(inst['postscriptName'])
row.append(inst['subfamilyName'])
row.append(file)
rows.append(row)
return header, rows
def format_fvar(tables: [dict], files: [str], cl: dict) -> str:
if cl.format in ('yaml', 'py'):
return fmtstructured(tables, files, cl)
out = []
# axes
header, rows = build_axes(tables, files)
fmtplaintext(out, header, rows)
out.append('\n')
# instances
header, rows = build_instances(tables, files)
fmtplaintext(out, header, rows)
return ''.join(out)
if __name__ == '__main__':
argparser = argparse.ArgumentParser(description='Print fvar table entries')
a = lambda *args, **kwargs: argparser.add_argument(*args, **kwargs)
a('-f', '--format', metavar='<format>', help='One of: plain, yaml, py, md')
a('inputs', metavar='<file>', nargs='+', help='Input fonts (ttf or otf)')
cl = argparser.parse_args()
if cl.format not in (None, 'plain', 'yaml', 'py', 'md'):
raise Exception(f'unknown format: "{cl.format}"')
with Pool() as p:
tables = p.map(read_fvar_table, cl.inputs)
filenames = [os.path.basename(fn) for fn in cl.inputs]
print(format_fvar(tables, filenames, cl))
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