def latex2sympy(sympy: str, variable_values={}):
# Remove \n and \t
# sympy = sympy.replace('\n', '', -1).replace('\t', '', -1)
# Translate Derivative
sympy = sympy.replace(r'\mathrm{d}', 'd', -1).replace(r'{\rm d}', 'd', -1)
# variable values
global VARIABLE_VALUES
if len(variable_values) > 0:
VARIABLE_VALUES = variable_values
else:
VARIABLE_VALUES = {}
# setup listener
matherror = MathErrorListener(sympy)
# stream input
stream = InputStream(sympy)
lex = PSLexer(stream)
lex.removeErrorListeners()
lex.addErrorListener(matherror)
tokens = CommonTokenStream(lex)
parser = PSParser(tokens)
# remove default console error listener
parser.removeErrorListeners()
parser.addErrorListener(matherror)
# process the input
return_data = None
math = parser.math()
# if a list
if math.relation_list():
return_data = []
# go over list items
relation_list = math.relation_list().relation_list_content()
for list_item in relation_list.relation():
expr = convert_relation(list_item)
return_data.append(expr)
# if not, do default
else:
relation = math.relation()
return_data = convert_relation(relation)
return return_data
def process_sympy(latex, variable_values={}):
# variable values
global VARIABLE_VALUES
if len(variable_values) > 0:
VARIABLE_VALUES = variable_values
else:
VARIABLE_VALUES = {}
# pre-processing
pre_processed_latex = pre_process_latex(latex)
# setup listener
matherror = MathErrorListener(pre_processed_latex)
# stream input
stream = antlr4.InputStream(pre_processed_latex)
lex = PSLexer(stream)
lex.removeErrorListeners()
lex.addErrorListener(matherror)
tokens = antlr4.CommonTokenStream(lex)
parser = PSParser(tokens)
# remove default console error listener
parser.removeErrorListeners()
parser.addErrorListener(matherror)
# process the input
return_data = None
math = parser.math()
# if a list
if math.relation_list():
return_data = []
# go over list items
relation_list = math.relation_list().relation_list_content()
for list_item in relation_list.relation():
expr = convert_relation(list_item)
return_data.append(expr)
# if not, do default
else:
relation = math.relation()
return_data = convert_relation(relation)
return return_data
def process_sympy(sympy, placeholder_values={}):
# placeholder values
global PLACEHOLDER_VALUES
if len(placeholder_values) > 0:
PLACEHOLDER_VALUES = placeholder_values
else:
PLACEHOLDER_VALUES = {}
# setup listener
matherror = MathErrorListener(sympy)
# stream input
stream = antlr4.InputStream(sympy)
lex = PSLexer(stream)
lex.removeErrorListeners()
lex.addErrorListener(matherror)
tokens = antlr4.CommonTokenStream(lex)
parser = PSParser(tokens)
# remove default console error listener
parser.removeErrorListeners()
parser.addErrorListener(matherror)
# process the input
return_data = None
math = parser.math()
# if a list
if math.relation_list():
return_data = []
# go over list items
relation_list = math.relation_list().relation_list_content()
for list_item in relation_list.relation():
expr = convert_relation(list_item)
return_data.append(expr)
# if not, do default
else:
relation = math.relation()
return_data = convert_relation(relation)
return return_data
def process_sympy(sympy):
matherror = MathErrorListener(sympy)
stream = antlr4.InputStream(sympy)
lex = PSLexer(stream)
lex.removeErrorListeners()
lex.addErrorListener(matherror)
tokens = antlr4.CommonTokenStream(lex)
parser = PSParser(tokens)
# remove default console error listener
parser.removeErrorListeners()
parser.addErrorListener(matherror)
relation = parser.math().relation()
expr = convert_relation(relation)
return expr
def process_sympy(sympy):
matherror = MathErrorListener(sympy)
stream = antlr4.InputStream(sympy)
lex = PSLexer(stream)
lex.removeErrorListeners()
lex.addErrorListener(matherror)
tokens = antlr4.CommonTokenStream(lex)
parser = PSParser(tokens)
# remove default console error listener
parser.removeErrorListeners()
parser.addErrorListener(matherror)
relation = parser.math().relation()
expr = convert_relation(relation)
return expr