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javacard, cosmetic: fix sourcecode fromatting and improve docstring

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The line with TAGS is longer than 120 columns and there is some
comment that should be moved to the python docstring.

Related: OS#6679
Change-Id: I1d02098320cfbe17a0eb1bfdcf3bc85034cc8e20
This commit is contained in:
Philipp Maier
2024-12-19 17:51:59 +01:00
parent 25319c5184
commit 9df5e2f171
1 changed files with 7 additions and 5 deletions
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12
pySim/javacard.py
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@@ -6,14 +6,16 @@ import sys
import io
def ijc_to_cap(in_file: io.IOBase, out_zip: zipfile.ZipFile, p : str = "foo"):
"""Convert an ICJ (Interoperable Java Card) file [back] to a CAP file."""
TAGS = ["Header", "Directory", "Applet", "Import", "ConstantPool", "Class", "Method", "StaticField", "RefLocation", "Export", "Descriptor", "Debug"]
"""Convert an ICJ (Interoperable Java Card) file [back] to a CAP file.
example usage:
with io.open(sys.argv[1],"rb") as f, zipfile.ZipFile(sys.argv[2], "wb") as z:
ijc_to_cap(f, z)
"""
TAGS = ["Header", "Directory", "Applet", "Import", "ConstantPool", "Class", "Method", "StaticField", "RefLocation",
"Export", "Descriptor", "Debug"]
b = in_file.read()
while len(b):
tag, size = struct.unpack('!BH', b[0:3])
out_zip.writestr(p+"/javacard/"+TAGS[tag-1]+".cap", b[0:3+size])
b = b[3+size:]
# example usage:
# with io.open(sys.argv[1],"rb") as f, zipfile.ZipFile(sys.argv[2], "wb") as z:
# ijc_to_cap(f, z)