Commit 5985e41a authored by Damien George's avatar Damien George
Browse files

tools/make-frozen.py: Properly escape hex chars when making C strings.

parent 1e2f8292
......@@ -53,11 +53,31 @@ print("};")
print("const char mp_frozen_str_content[] = {")
for f, st in modules:
data = open(sys.argv[1] + "/" + f, "rb").read()
# Python2 vs Python3 tricks
data = repr(data)
if data[0] == "b":
data = data[1:]
data = data[1:-1]
data = data.replace('"', '\\"')
print('"%s\\0"' % data)
# We need to properly escape the script data to create a C string.
# When C parses hex characters of the form \x00 it keeps parsing the hex
# data until it encounters a non-hex character. Thus one must create
# strings of the form "data\x01" "abc" to properly encode this kind of
# data. We could just encode all characters as hex digits but it's nice
# to be able to read the resulting C code as ASCII when possible.
data = bytearray(data) # so Python2 extracts each byte as an integer
esc_dict = {ord('\n'): '\\n', ord('\r'): '\\r', ord('"'): '\\"', ord('\\'): '\\\\'}
chrs = ['"']
break_str = False
for c in data:
try:
chrs.append(esc_dict[c])
except KeyError:
if 32 <= c <= 126:
if break_str:
chrs.append('" "')
break_str = False
chrs.append(chr(c))
else:
chrs.append('\\x%02x' % c)
break_str = True
chrs.append('\\0"')
print(''.join(chrs))
print("};")
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