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add option to avoid building latex

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This commit is contained in:
Damien Elmes 2008-12-24 15:48:54 +09:00
parent 35ef8e6fa9
commit b161d6e485
1 changed files with 10 additions and 8 deletions
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18
anki/latex.py
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@ -33,17 +33,19 @@ tmpdir = tempfile.mkdtemp(prefix="anki-latex")
if sys.platform == "darwin":
os.environ['PATH'] += ":/usr/texbin"
def renderLatex(deck, text):
def renderLatex(deck, text, build=True):
"Convert TEXT with embedded latex tags to image links."
for match in regexps['standard'].finditer(text):
text = text.replace(match.group(), imgLink(deck, match.group(1)))
text = text.replace(match.group(), imgLink(deck, match.group(1),
build))
for match in regexps['expression'].finditer(text):
text = text.replace(match.group(), imgLink(
deck, "$" + match.group(1) + "$"))
deck, "$" + match.group(1) + "$", build))
for match in regexps['math'].finditer(text):
text = text.replace(match.group(), imgLink(
deck,
"\\begin{displaymath}" + match.group(1) + "\\end{displaymath}"))
"\\begin{displaymath}" + match.group(1) + "\\end{displaymath}",
build))
return text
def stripLatex(text):
@ -137,22 +139,22 @@ def buildImg(deck, latex):
finally:
os.chdir(oldcwd)
def imageForLatex(deck, latex):
def imageForLatex(deck, latex, build=True):
"Return an image that represents 'latex', building if necessary."
imageFile = latexImgFile(deck, latex)
if imageFile:
path = latexImgPath(deck, imageFile)
ok = True
if not imageFile or not os.path.exists(path):
if build and (not imageFile or not os.path.exists(path)):
(ok, imageFile) = buildImg(deck, latex)
if not ok:
return (False, imageFile)
return (True, imageFile)
def imgLink(deck, latex):
def imgLink(deck, latex, build=True):
"Parse LATEX and return a HTML image representing the output."
latex = mungeLatex(latex)
(ok, img) = imageForLatex(deck, latex)
(ok, img) = imageForLatex(deck, latex, build)
if ok:
return '<img src="%s">' % img
else: