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savefig crash on .eps filename #620

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Merged
merged 1 commit into from
Dec 13, 2011
Merged

savefig crash on .eps filename #620

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Fix usetex with .eps and .ps files in backend_ps.py
  • Loading branch information
@mdboom
mdboom committed Dec 12, 2011
commit 5acabc0cbe17cf9ae31f39caf7faff592c416f82
96 changes: 58 additions & 38 deletions 96 lib/matplotlib/backends/backend_ps.py
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Original file line number Diff line number Diff line change
Expand Up @@ -90,7 +90,11 @@ def gs_version(self):
from subprocess import Popen, PIPE
pipe = Popen(self.gs_exe + " --version",
shell=True, stdout=PIPE).stdout
gs_version = tuple(map(int, pipe.read().strip().split(".")))
if sys.version_info[0] >= 3:
ver = pipe.read().decode('ascii')
else:
ver = pipe.read()
gs_version = tuple(map(int, ver.strip().split(".")))

self._cached["gs_version"] = gs_version
return gs_version
Expand Down Expand Up @@ -1198,7 +1202,10 @@ def write(self, *kl, **kwargs):

self._pswriter = NullWriter()
else:
self._pswriter = StringIO()
if sys.version_info[0] >= 3:
self._pswriter = io.StringIO()
else:
self._pswriter = cStringIO.StringIO()


# mixed mode rendering
Expand All @@ -1219,7 +1226,11 @@ def write(self, *kl, **kwargs):

# write to a temp file, we'll move it to outfile when done
fd, tmpfile = mkstemp()
with io.fdopen(fd, 'w', encoding='ascii') as fh:
if sys.version_info[0] >= 3:
fh = io.open(fd, 'w', encoding='ascii')
else:
fh = io.open(fd, 'wb')
with fh:
# write the Encapsulated PostScript headers
print("%!PS-Adobe-3.0 EPSF-3.0", file=fh)
if title: print("%%Title: "+title, file=fh)
Expand Down Expand Up @@ -1298,7 +1309,15 @@ def write(self, *kl, **kwargs):
else: gs_distill(tmpfile, isEPSF, ptype=papertype, bbox=bbox,
rotated=psfrag_rotated)

if isinstance(outfile, file):
is_file = False
if sys.version_info[0] >= 3:
if isinstance(outfile, io.IOBase):
is_file = True
else:
if isinstance(outfile, file):
is_file = True

if is_file:
with open(tmpfile, 'rb') as fh:
outfile.write(fh.read())
else:
Expand Down Expand Up @@ -1355,12 +1374,12 @@ def convert_psfrags(tmpfile, psfrags, font_preamble, custom_preamble,
paperWidth, paperHeight,
'\n'.join(psfrags), angle, os.path.split(epsfile)[-1])

with io.open(latexfile, 'w', encoding='ascii') as latexh:
with io.open(latexfile, 'wb') as latexh:
if rcParams['text.latex.unicode']:
latexh.write(s.encode('utf8'))
else:
try:
latexh.write(s)
latexh.write(s.encode('ascii'))
except UnicodeEncodeError:
verbose.report("You are using unicode and latex, but have "
"not enabled the matplotlib 'text.latex.unicode' "
Expand All @@ -1375,7 +1394,7 @@ def convert_psfrags(tmpfile, psfrags, font_preamble, custom_preamble,
%(precmd, tmpdir, latexfile, outfile)
verbose.report(command, 'debug')
exit_status = os.system(command)

with io.open(outfile, 'rb') as fh:
if exit_status:
raise RuntimeError('LaTeX was not able to process your file:\
Expand Down Expand Up @@ -1447,7 +1466,7 @@ def gs_distill(tmpfile, eps=False, ptype='letter', bbox=None, rotated=False):
verbose.report(command, 'debug')
exit_status = os.system(command)

with io.open(outfile, 'rb'):
with io.open(outfile, 'rb') as fh:
if exit_status:
raise RuntimeError('ghostscript was not able to process \
your image.\nHere is the full report generated by ghostscript:\n\n' + fh.read())
Expand Down Expand Up @@ -1597,55 +1616,56 @@ def pstoeps(tmpfile, bbox=None, rotated=False):
bbox_info, rotate = None, None

epsfile = tmpfile + '.eps'
with io.open(epsfile, 'w', encoding='ascii') as epsh:
with io.open(tmpfile, 'r', encoding='ascii') as tmph:
with io.open(epsfile, 'wb') as epsh:
write = epsh.write
with io.open(tmpfile, 'rb') as tmph:
line = tmph.readline()
# Modify the header:
while line:
if line.startswith('%!PS'):
print("%!PS-Adobe-3.0 EPSF-3.0", file=epsh)
if line.startswith(b'%!PS'):
write(b"%!PS-Adobe-3.0 EPSF-3.0\n")
if bbox:
print(bbox_info, file=epsh)
elif line.startswith('%%EndComments'):
epsh.write(line)
print('%%BeginProlog', file=epsh)
print('save', file=epsh)
print('countdictstack', file=epsh)
print('mark', file=epsh)
print('newpath', file=epsh)
print('/showpage {} def', file=epsh)
print('/setpagedevice {pop} def', file=epsh)
print('%%EndProlog', file=epsh)
print('%%Page 1 1', file=epsh)
write(bbox_info.encode('ascii') + b'\n')
elif line.startswith(b'%%EndComments'):
write(line)
write(b'%%BeginProlog\n')
write(b'save\n')
write(b'countdictstack\n')
write(b'mark\n')
write(b'newpath\n')
write(b'/showpage {} def\n')
write(b'/setpagedevice {pop} def\n')
write(b'%%EndProlog\n')
write(b'%%Page 1 1\n')
if rotate:
print(rotate, file=epsh)
write(rotate.encode('ascii') + b'\n')
break
elif bbox and (line.startswith('%%Bound') \
or line.startswith('%%HiResBound') \
or line.startswith('%%DocumentMedia') \
or line.startswith('%%Pages')):
elif bbox and (line.startswith(b'%%Bound') \
or line.startswith(b'%%HiResBound') \
or line.startswith(b'%%DocumentMedia') \
or line.startswith(b'%%Pages')):
pass
else:
epsh.write(line)
write(line)
line = tmph.readline()
# Now rewrite the rest of the file, and modify the trailer.
# This is done in a second loop such that the header of the embedded
# eps file is not modified.
line = tmph.readline()
while line:
if line.startswith('%%Trailer'):
print('%%Trailer', file=epsh)
print('cleartomark', file=epsh)
print('countdictstack', file=epsh)
print('exch sub { end } repeat', file=epsh)
print('restore', file=epsh)
if line.startswith(b'%%Trailer'):
write(b'%%Trailer\n')
write(b'cleartomark\n')
write(b'countdictstack\n')
write(b'exch sub { end } repeat\n')
write(b'restore\n')
if rcParams['ps.usedistiller'] == 'xpdf':
# remove extraneous "end" operator:
line = tmph.readline()
elif line.startswith('%%PageBoundingBox'):
elif line.startswith(b'%%PageBoundingBox'):
pass
else:
epsh.write(line)
write(line)
line = tmph.readline()

os.remove(tmpfile)
Expand Down
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