Macintosh-Tools/python-rsrcfork
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Add bytes_quote helper function

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bytes_quote does the same as bytes_escape, but automatically adds the
quote character around the escaped string.
This commit is contained in:
dgelessus 2020-07-07 01:03:38 +02:00
parent 33c4016124
commit d367a9238a
1 changed files with 21 additions and 14 deletions
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35
rsrcfork/__main__.py
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@ -87,6 +87,15 @@ def bytes_escape(bs: bytes, *, quote: typing.Optional[str] = None) -> str:
return "".join(out)
def bytes_quote(bs: bytes, quote: str) -> str:
"""Convert a bytestring to a quoted string (using _TEXT_ENCODING), with non-printable characters hex-escaped.
(We implement our own escaping mechanism here to not depend on Python's str or bytes repr.)
"""
return quote + bytes_escape(bs, quote=quote) + quote
MIN_RESOURCE_ID = -0x8000
MAX_RESOURCE_ID = 0x7fff
@ -210,8 +219,7 @@ def describe_resource(res: api.Resource, *, include_type: bool, decompress: bool
id_desc_parts = [f"{res.id}"]
if res.name is not None:
name = bytes_escape(res.name, quote='"')
id_desc_parts.append(f'"{name}"')
id_desc_parts.append(bytes_quote(res.name, '"'))
id_desc = ", ".join(id_desc_parts)
@ -237,8 +245,8 @@ def describe_resource(res: api.Resource, *, include_type: bool, decompress: bool
desc = f"({id_desc}): {content_desc}"
if include_type:
restype = bytes_escape(res.type, quote="'")
desc = f"'{restype}' {desc}"
quoted_restype = bytes_quote(res.type, "'")
desc = f"{quoted_restype} {desc}"
return desc
@ -302,13 +310,12 @@ def show_filtered_resources(resources: typing.Sequence[api.Resource], format: st
parts = [str(res.id)]
if res.name is not None:
name = bytes_escape(res.name, quote='"')
parts.append(f'"{name}"')
parts.append(bytes_quote(res.name, '"'))
parts += attr_descs
restype = bytes_escape(res.type, quote="'")
print(f"data '{restype}' ({', '.join(parts)}{attrs_comment}) {{")
quoted_restype = bytes_quote(res.type, "'")
print(f"data {quoted_restype} ({', '.join(parts)}{attrs_comment}) {{")
for i in range(0, len(data), 16):
# Two-byte grouping is really annoying to implement.
@ -348,8 +355,8 @@ def list_resources(resources: typing.List[api.Resource], *, sort: bool, group: s
resources_by_type = {restype: list(reses) for restype, reses in itertools.groupby(resources, key=lambda res: res.type)}
print(f"{len(resources_by_type)} resource types:")
for restype, restype_resources in resources_by_type.items():
escaped_restype = bytes_escape(restype, quote="'")
print(f"'{escaped_restype}': {len(restype_resources)} resources:")
quoted_restype = bytes_quote(restype, "'")
print(f"{quoted_restype}: {len(restype_resources)} resources:")
if sort:
restype_resources.sort(key=lambda res: res.id)
for res in restype_resources:
@ -538,15 +545,15 @@ def do_resource_info(ns: argparse.Namespace) -> typing.NoReturn:
sys.exit(0)
for res in resources:
restype = bytes_escape(res.type, quote="'")
print(f"Resource '{restype}' ({res.id}):")
quoted_restype = bytes_quote(res.type, "'")
print(f"Resource {quoted_restype} ({res.id}):")
if res.name is None:
print("\tName: none (unnamed)")
else:
assert res.name_offset is not None
name = bytes_escape(res.name, quote='"')
print(f'\tName: "{name}" (at offset {res.name_offset} in name list)')
quoted_name = bytes_quote(res.name, '"')
print(f'\tName: {quoted_name} (at offset {res.name_offset} in name list)')
attrs = decompose_flags(res.attributes)
if attrs: