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import logging
import sys
from argparse import ArgumentParser, Namespace
from collections.abc import Callable, Sequence
from pathlib import Path
from typing import Optional
import opentype_feature_freezer
def parseOptions(args: Optional[Sequence[str]] = None) -> Namespace:
parser = ArgumentParser(
description=(
'With %(prog)s you can "freeze" some OpenType features into a font. '
'These features are then "on by default", even in apps that don\'t '
'support OpenType features. Internally, the tool remaps the "cmap" '
"table of the font by applying the specified GSUB features. Only "
"single and alternate substitutions are supported."
),
epilog=(
"Examples: "
"%(prog)s -f 'c2sc,smcp' -S -U SC OpenSans.ttf OpenSansSC.ttf "
"%(prog)s -R 'Lato/Otal' Lato-Regular.ttf Otal-Regular.ttf"
),
)
parser.add_argument("inpath", help="input .otf or .ttf font file")
parser.add_argument(
"outpath",
nargs="?",
default=None,
help="output .otf or .ttf font file (optional)",
)
group_freezing = parser.add_argument_group("options to control feature freezing")
group_freezing.add_argument(
"-f",
"--features",
action="store",
dest="features",
type=str,
default="",
help="comma-separated list of OpenType feature tags, e.g. 'smcp,c2sc,onum'",
)
group_freezing.add_argument(
"-s",
"--script",
action="store",
dest="script",
type=str,
default=None,
help="OpenType script tag, e.g. 'cyrl' (optional)",
)
group_freezing.add_argument(
"-l",
"--lang",
action="store",
dest="lang",
type=str,
default=None,
help="OpenType language tag, e.g. 'SRB ' (optional)",
)
group_freezing.add_argument(
"-z",
"--zapnames",
action="store_true",
dest="zapnames",
help="zap glyphnames from the font ('post' table version 3, .ttf only)",
)
group_renaming = parser.add_argument_group("options to control font renaming")
group_renaming.add_argument(
"-S",
"--suffix",
action="store_true",
dest="suffix",
help=(
"add a suffix to the font family name (by default, the suffix will be "
"constructed from the OpenType feature tags)"
),
)
group_renaming.add_argument(
"-U",
"--usesuffix",
action="store",
dest="usesuffix",
default="",
help="use a custom suffix when --suffix is enabled",
)
group_renaming.add_argument(
"-R",
"--replacenames",
action="store",
dest="replacenames",
default="",
help=(
"search for strings in the font naming tables and replace them, format is "
"'search1/replace1,search2/replace2,...'"
),
)
group_renaming.add_argument(
"-i",
"--info",
action="store_true",
dest="info",
help="update font version string",
)
group_reporting = parser.add_argument_group("reporting options")
group_reporting.add_argument(
"-r",
"--report",
action="store_true",
dest="report",
help="report languages, scripts and features in font",
)
group_reporting.add_argument(
"-n",
"--names",
action="store_true",
dest="names",
help="output names of remapped glyphs during processing",
)
group_reporting.add_argument(
"-v",
"--verbose",
action="store_true",
dest="verbose",
help="print additional information during processing",
)
group_reporting.add_argument(
"-V",
"--version",
action="version",
version=opentype_feature_freezer.__version__,
)
return parser.parse_args(args)
def main(
args: list[str] | None = None,
parser_func: Callable[[list | None], Namespace] | None = None,
) -> int:
logging.basicConfig(format="%(levelname)s: %(message)s")
current_parser_func = parseOptions if parser_func is None else parser_func
# args_parsed will be of type Namespace (or the return type of current_parser_func)
args_parsed: Namespace = current_parser_func(args)
if not Path(args_parsed.inpath).exists():
logging.error("Input file does not exist.")
return 1
if args_parsed.verbose:
logging.getLogger().setLevel(logging.INFO)
# argparse.Namespace is structurally compatible with types.SimpleNamespace.
# RemapByOTL expects argparse.Namespace (updated in __init__.py).
# A more robust solution might involve a Protocol.
p = opentype_feature_freezer.RemapByOTL(args_parsed)
try:
p.run()
except RuntimeError as e:
logging.error(e)
return 1
if p.success:
logging.info("Finished processing.")
return 0
logging.warning("Errors during processing.")
return 1
if __name__ == "__main__":
sys.exit(main())
|
