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Reduced duplicate code

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This commit is contained in:
Andrew Murray 2023-09-22 17:58:11 +10:00
parent 4c9c7636be
commit 8064adad7a
1 changed files with 30 additions and 40 deletions
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70
src/PIL/EpsImagePlugin.py
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@ -245,6 +245,34 @@ class EpsImageFile(ImageFile.ImageFile):
msg = 'EPS header missing "%%BoundingBox" comment' msg = 'EPS header missing "%%BoundingBox" comment'
raise SyntaxError(msg) raise SyntaxError(msg)
def _read_comment(s):
nonlocal reading_trailer_comments
try:
m = split.match(s)
except re.error as e:
msg = "not an EPS file"
raise SyntaxError(msg) from e
if m:
k, v = m.group(1, 2)
self.info[k] = v
if k == "BoundingBox":
if v == "(atend)":
reading_trailer_comments = True
elif not self._size:
try:
# Note: The DSC spec says that BoundingBox
# fields should be integers, but some drivers
# put floating point values there anyway.
box = [int(float(i)) for i in v.split()]
self._size = box[2] - box[0], box[3] - box[1]
self.tile = [
("eps", (0, 0) + self.size, offset, (length, box))
]
except Exception:
pass
return True
while True: while True:
byte = self.fp.read(1) byte = self.fp.read(1)
if byte == b"": if byte == b"":
@ -289,22 +317,7 @@ class EpsImageFile(ImageFile.ImageFile):
continue continue
s = str(bytes_mv[:bytes_read], "latin-1") s = str(bytes_mv[:bytes_read], "latin-1")
if not _read_comment(s):
try:
m = split.match(s)
except re.error as e:
msg = "not an EPS file"
raise SyntaxError(msg) from e
if m:
k, v = m.group(1, 2)
self.info[k] = v
if k == "BoundingBox":
if v == "(atend)":
reading_trailer_comments = True
else:
self._read_boundary_box(v, offset, length)
else:
m = field.match(s) m = field.match(s)
if m: if m:
k = m.group(1) k = m.group(1)
@ -360,19 +373,7 @@ class EpsImageFile(ImageFile.ImageFile):
continue continue
s = str(bytes_mv[:bytes_read], "latin-1") s = str(bytes_mv[:bytes_read], "latin-1")
_read_comment(s)
try:
m = split.match(s)
except re.error as e:
msg = "not an EPS file"
raise SyntaxError(msg) from e
if m:
k, v = m.group(1, 2)
self.info[k] = v
if k == "BoundingBox":
if not self._size:
self._read_boundary_box(v, offset, length)
if bytes_mv[:9] == b"%%Trailer": if bytes_mv[:9] == b"%%Trailer":
trailer_reached = True trailer_reached = True
@ -407,17 +408,6 @@ class EpsImageFile(ImageFile.ImageFile):
return length, offset return length, offset
def _read_boundary_box(self, v, offset, length):
try:
# Note: The DSC spec says that BoundingBox
# fields should be integers, but some drivers
# put floating point values there anyway.
box = [int(float(i)) for i in v.split()]
self._size = box[2] - box[0], box[3] - box[1]
self.tile = [("eps", (0, 0) + self.size, offset, (length, box))]
except Exception:
pass
def load(self, scale=1, transparency=False): def load(self, scale=1, transparency=False):
# Load EPS via Ghostscript # Load EPS via Ghostscript
if self.tile: if self.tile: