def test_latexformula():
png = datadir.join("test.png")
formula = r'$$Entropy(T) = - \sum^{m}_{j=1} \frac{|T_j|}{|T|} \log \frac{|T_j|}{|T|}$$'
#does not crash
latexformula2png(formula, png)
assert png.check()
png.remove()
def latexformula_role(name,
rawtext,
text,
lineno,
inliner,
options={},
content=[]):
if _backend == 'latex':
options['format'] = 'latex'
return roles.raw_role(name, rawtext, text, lineno, inliner, options,
content)
else:
# XXX: make the place of the image directory configurable
sourcedir = py.path.local(inliner.document.settings._source).dirpath()
imagedir = sourcedir.join("img")
if not imagedir.check():
imagedir.mkdir()
# create halfway senseful imagename:
# use hash of formula + alphanumeric characters of it
# could
imagename = "%s_%s.png" % (hash(text), "".join(
[c for c in text if c.isalnum()]))
image = imagedir.join(imagename)
latexformula2png(unescape(text, True), image)
imagenode = nodes.image(image.relto(sourcedir),
uri=image.relto(sourcedir))
return [imagenode], []
def test_latexformula():
png = datadir.join("test.png")
formula = r'$$Entropy(T) = - \sum^{m}_{j=1} \frac{|T_j|}{|T|} \log \frac{|T_j|}{|T|}$$'
#does not crash
latexformula2png(formula, png)
assert png.check()
png.remove()
def latexformula_role(name, rawtext, text, lineno, inliner,
options={}, content=[]):
if _backend == 'latex':
options['format'] = 'latex'
return roles.raw_role(name, rawtext, text, lineno, inliner,
options, content)
else:
# XXX: make the place of the image directory configurable
sourcedir = py.path.local(inliner.document.settings._source).dirpath()
imagedir = sourcedir.join("img")
if not imagedir.check():
imagedir.mkdir()
# create halfway senseful imagename:
# use hash of formula + alphanumeric characters of it
# could
imagename = "%s_%s.png" % (
hash(text), "".join([c for c in text if c.isalnum()]))
image = imagedir.join(imagename)
latexformula2png(unescape(text, True), image)
imagenode = nodes.image(image.relto(sourcedir), uri=image.relto(sourcedir))
return [imagenode], []
