belerico / py_asciimath Goto Github PK
View Code? Open in Web Editor NEWA simple converter from ASCIIMath to LaTeX or MathML and from MathML to LaTeX
License: MIT License
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Also about LaTex translate to AsciiMath
py_asciimath.exe "\[a=60{}^\circ\ ]" from latex to asciimath
py_asciimath.exe "\[a=45{}^\circ \]" from latex to asciimath
py_asciimath.exe "\[\bar{N}t=m{{v}{0}}\sin \alpha \]" from latex to asciimath
py_asciimath.exe "\[\bar{f}t=\mu \bar{N}t=\mu m{{v}{0}}\sin \alpha \approx 0.6m{{v}{0}}\]" from latex to asciimath
py_asciimath.exe "\[\alpha ={{45}^{{}^\circ }},\mu =0.5\]" from latex to asciimath
py_asciimath.exe "\[\bar{N}t=m{{v}{0}}\sin \alpha \]" from latex to asciimath
py_asciimath.exe "\[\bar{f}t=\mu m{{v}{0}}\sin \alpha =m{{v}{0}}\cos \alpha -mv\]" from latex to asciimath
py_asciimath.exe "\[\alpha ={{30}^{{}^\circ }}\]" from latex to asciimath
looks like they dont work.
TeX to ASCIImath \frac error
When running this code:
from py_asciimath.translator.translator import (
ASCIIMath2MathML,
ASCIIMath2Tex,
MathML2Tex,
Tex2ASCIIMath
)
latex_input = r"\frac{3}{2^4}"
tex2asciimath = Tex2ASCIIMath(log=False, inplace=True)
parsed = tex2asciimath.translate(latex_input, from_file=False, pprint=False,)
print(parsed)
prints this:
frac(3)((2)^(4))
when it's meant to print:
(3)/(2^4)
Is there something wrong with how the LaTeX equation is being input or is it a bug?
Enhancement - MathML XSLT refactoring
The XSLT to translate from MathML to LaTeX is very outdated, so it would be nice to refactor it to some LaTeX math standard
Too many the brace character generated in the translation from LaTex to AsciiMath
For example,
AsciiMath formula: {{E}_{{{{{x}'}}_{1}}}}={{E}_{0}}\cos \omega t
actually is the same as : {E_{x'_1}}=E_0\cos \omega t
too many braces '{' and '}' are no need.
lxml.etree.XMLSyntaxError: failed to load external entity "NULL", line 1, column 128
I installed py_asciimath, update lxml for my python-3.8.1.amd64 on Windows 10 64 bits
then I try to run the code bellowing, which is actually the code on https://github.com/belerico/py_asciimath, but I get
ASCIIMath to MathML
WARNING:root:No connection available...
WARNING:root:No XML declaration with 'encoding' attribute set: default encoding to None
WARNING:root:The XML encoding is None: default to UTF-8
WARNING:root:No DTD declaration found: set to local mathml2 DTD
Traceback (most recent call last):
File "a.py", line 12, in <module>
parsed = asciimath2mathml.translate(
File "E:\_PRG_BAK\py_asciimath-master\py_asciimath\translator\translator.py", line 336, in translate
return super(ASCIIMath2MathML, self).translate(
File "E:\_PRG_BAK\py_asciimath-master\py_asciimath\translator\translator.py", line 136, in translate
return super(LarkTranslator, self).translate(
File "E:\_PRG_BAK\py_asciimath-master\py_asciimath\translator\translator.py", line 65, in translate
exp = self._translate(exp, **kwargs)
File "E:\_PRG_BAK\py_asciimath-master\py_asciimath\translator\translator.py", line 266, in _translate
parsed = MathMLParser.parse(
File "E:\_PRG_BAK\py_asciimath-master\py_asciimath\parser\parser.py", line 297, in parse
return lxml.etree.fromstring(xml, mathml_parser)
File "src\lxml\etree.pyx", line 3236, in lxml.etree.fromstring
File "src\lxml\parser.pxi", line 1876, in lxml.etree._parseMemoryDocument
File "src\lxml\parser.pxi", line 1764, in lxml.etree._parseDoc
File "src\lxml\parser.pxi", line 1127, in lxml.etree._BaseParser._parseDoc
File "src\lxml\parser.pxi", line 601, in lxml.etree._ParserContext._handleParseResultDoc
File "src\lxml\parser.pxi", line 711, in lxml.etree._handleParseResult
File "src\lxml\parser.pxi", line 640, in lxml.etree._raiseParseError
File "<string>", line 1
lxml.etree.XMLSyntaxError: failed to load external entity "NULL", line 1, column 128
the code is
from py_asciimath.translator.translator import (
ASCIIMath2MathML,
ASCIIMath2Tex,
MathML2Tex,
Tex2ASCIIMath
)
if __name__ == "__main__":
print("ASCIIMath to MathML")
asciimath2mathml = ASCIIMath2MathML(log=False, inplace=True)
parsed = asciimath2mathml.translate(
r"e^x > 0 forall x in RR",
displaystyle=True,
dtd="mathml2",
dtd_validation=True,
from_file=False,
output="string",
network=True,
pprint=False,
to_file=None,
xml_declaration=True,
xml_pprint=True,
)
print(parsed, "\n\nMathML to LaTeX")
mathml2tex = MathML2Tex()
parsed = mathml2tex.translate(parsed, network=False, from_file=False,)
print(parsed, "\n\nASCIIMath to LaTeX")
asciimath2tex = ASCIIMath2Tex(log=False, inplace=True)
parsed = asciimath2tex.translate(
r"e^x > 0 forall x in RR",
displaystyle=True,
from_file=False,
pprint=False,
)
print(parsed, "\n\nLaTeX to ASCIIMath")
tex2asciimath = Tex2ASCIIMath(log=False, inplace=True)
parsed = tex2asciimath.translate(
parsed,
from_file=False,
pprint=False,
)
print(parsed)logging.basicConfig might be in the wrong place
I think it's not proper to config log level DEBUG inside many inner modules:
logging.basicConfig(format="%(levelname)s:%(message)s", level=logging.DEBUG)It makes this package unusable in interactive mode, unless the user understand how to deal with the logging stuff.
My suggestion is to put the logging.basicConfig only inside your entry point scripts / functions.
ASCIIMath2Tex frac error
when running unit test
parser = ASCIIMath2Tex(log=False)
s = parser.translate("f(x)/g(x)")
self.assertEqual(s,r"$\frac{f(x)}{g(x)}$")it outputs
======================================================================
FAIL: test_asciimath2tex_ok_10 (__main__.TestASCIIMath2Tex.test_asciimath2tex_ok_10)
----------------------------------------------------------------------
Traceback (most recent call last):
File "e:\Folder\py_asciimath\tests\test_ASCIIMath2Tex.py", line 119, in test_asciimath2tex_ok_10
self.assertEqual(s,r"$\frac{f(x)}{g(x)}$")
AssertionError: '$f \\frac{x}{g} \\left(x\\right)$' != '$\\frac{f(x)}{g(x)}$'
- $f \frac{x}{g} \left(x\right)$
+ $\frac{f(x)}{g(x)}$
Mathjax, who renders asciimath formula, will treat f(x)/g(x) to the view
About translate LaTex to AsciiMath
for example, py_asciimath "[\bar{N}t=m{{v}_{0}}\sin \alpha]" from latex to asciimath , it doesnt work.
Enhancement - MathML support
It will be useful to translate also to MathML or Mathematica languages.
translation typo
py_asciimath/py_asciimath/asciimath.py
Line 149 in e15edf0
I believe mathml should be
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