def graceful_exit(sig, frame):
''' exit gracefully on SIGINT and SIGTERM'''
if metadata:
webquiz_util.webquiz_error(
False, 'program terminated (signal {}\n {})'.format(sig, frame))
else:
webquiz_util.webquiz_error(
False, 'program terminated (signal {})'.format(sig))
def preprocess_with_pst2pdf(options, quiz_file):
r'''
Preprocess the latex file using pst2pdf. As we are preprocessing the file it
is not enough to have latex pass us a flag that tells us to use pst2pdf.
Instead, we have to extract the class file option from the tex file
INPUT: quiz_file should be the name of the quiz file, WITHOUT the .tex extension
'''
options.talk('Preprocessing {} with pst2pdsf'.format(quiz_file))
try:
# pst2pdf converts pspicture environments to svg images and makes a
# new latex file quiz_file+'-pdf' that includes these
cmd = 'pst2pdf --svg --imgdir={q_file} {q_file}.tex'.format(q_file=quiz_file)
options.run(cmd)
except OSError as err:
if err.errno == errno.ENOENT:
webquiz_util.webquiz_error(options.debugging, 'pst2pdf not found. You need to install pst2pdf to use the pst2pdf option', err)
else:
webquiz_util.webquiz_error(options.debugging, 'error running pst2pdf on {}'.format(quiz_file), err)
# match \includegraphics commands
fix_svg = re.compile(r'(\\includegraphics\[scale=1\])\{('+quiz_file+r'-fig-[0-9]*)\}')
# the svg images are in the quiz_file subdirectory but latex can't
# find them so we update the tex file to look in the right place
try:
with codecs.open(quiz_file + '-pdf.tex', 'r', encoding='utf8') as pst_file:
with codecs.open(quiz_file + '-pdf-fixed.tex', 'w', encoding='utf8') as pst_fixed:
for line in pst_file:
pst_fixed.write(fix_svg.sub(r'\1{%s/\2.svg}' % quiz_file, line))
except OSError as err:
webquiz_util.webquiz_error(options.debugging,
'there was an problem running pst2pdf for {}'.format(quiz_file),
err
)
def webquiz_error(self, msg, err=None):
r'''
Customised error messages for the Module
'''
webquiz_util.webquiz_error(self.debugging, 'settings: ' + msg, err)
if len(options.quiz_file) > 1 and options.quiet < 3:
print('Making web page for {}'.format(quiz_file))
quiz_name, ext = os.path.splitext(
quiz_file) # extract filename and extension
# quiz_file is assumed to be a tex file if no extension is given
if ext == '':
ext = '.tex'
quiz_file += ext
# windows likes adding a prefix of '.\\'to filename and this causes havoc with latex
if os.path.dirname(quiz_file) == '.':
quiz_file = os.path.basename(quiz_file)
if ext not in ['.tex', '.xml']:
webquiz_util.webquiz_error(
True, 'unrecognised file extension {}'.format(ext))
if not os.path.isfile(quiz_file):
webquiz_util.webquiz + error(
True,
'WebQuiz error: cannot read file {}'.format(quiz_file))
# the quiz name and the quiz_file will be different if pst2pdf is used
quiz_name = quiz_file
if options.quiet < 2:
print('WebQuiz generating web page for {}'.format(quiz_file))
options.pst2pdf = False
if ext == ".tex":
# If the pst2pdf option is used then we need to preprocess
# the latex file BEFORE passing it to MakeWebQuiz. Set
def webquiz_error(self, msg, err=None):
r'''
Customised error message for the xml module
'''
webquiz_util.webquiz_error(self.defaults.debugging, 'xml: ' + msg, err)
def webquiz_error(self, msg, err=None):
r'''
Customised eror message for the makequiz module
'''
webquiz_util.webquiz_error(self.settings.debugging, 'makequiz: ' + msg,
err)
