Самсонов Владимир и Павлов Артём

example.tex

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+$$x=a+b$$ a+c=b $$a+b=\phi$$asdasdas
+$$n=v+n*b$$
+\begin{equation}b=a+t+y*c\end{equation} 123123123
+\begin{equation}
+m=n+k*k
+\end{equation}
+$$x=\integrate(x/(x**2+2*x+1), x)$$
+skjvbbksjvk $$h=k+i*i$$ ekvjeorjvasdekvj
+$j=k+y*y$
+1231231$$n=\phi+y$$123123

main.py

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+import sympy.abc
+import re
+unicode_greek = ['Α', 'α',
+                 'Β', 'β',
+                 'Γ', 'γ',
+                 'Δ', 'δ',
+                 'Ε', 'ε',
+                 'Ζ', 'ζ',
+                 'Η', 'η',
+                 'Θ', 'θ',
+                 'Ι', 'ι',
+                 'Κ', 'κ',
+                 'Λ', 'λ',
+                 'Μ', 'μ',
+                 'Ν', 'ν',
+                 'Ξ', 'ξ',
+                 'Ο', 'ο',
+                 'Π', 'π',
+                 'Ρ', 'ρ',
+                 'Σ', 'σ',
+                 'Τ', 'τ',
+                 'Υ', 'υ',
+                 'Φ', 'φ',
+                 'Χ', 'χ',
+                 'Ψ', 'ψ',
+                 'Ω', 'ω']
+latex_greek = ['Alpha',
+               'alpha',
+               'Beta',
+               'beta',
+               'Gamma',
+               'gamma',
+               'Delta',
+               'delta',
+               'Epsilon',
+               'epsilon',
+               'Zeta',
+               'zeta',
+               'Eta',
+               'eta',
+               'Theta',
+               'theta',
+               'Iota',
+               'iota',
+               'Kappa',
+               'kappa',
+               'Lambda',
+               'lambda',
+               'Mu',
+               'mu',
+               'Nu',
+               'nu',
+               'Xi',
+               'xi',
+               'Omicron',
+               'omicron',
+               'Pi',
+               'pi',
+               'Rho',
+               'rho',
+               'Sigma',
+               'sigma',
+               'Tau',
+               'tau',
+               'Upsilon',
+               'upsilon',
+               'Phi',
+               'phi',
+               'Chi',
+               'chi',
+               'Psi',
+               'psi',
+               'Omega',
+               'omega']
+
+greek_dict = dict(zip(latex_greek, unicode_greek))
+
+
+def parsing(line : str):
+    with open(line) as f:
+        formulas = list()
+        for item in f:
+            formulas.append(re.findall(
+                r'\\begin{equation}(.*?)\\end{equation}', item))
+            formulas.append(re.findall(r'\$([^$]+)\$', item))
+
+    i = 0
+    while i < len(formulas):
+        if len(formulas[i]) == 0:
+            formulas.pop(i)
+            i -= 1
+        i += 1
+
+    for i in range(len(formulas)):
+        formulas[i] = formulas[i][0].replace('\\', '')
+
+        for greek_letter in latex_greek:
+            while greek_letter in formulas[i]:
+                formulas[i] = formulas[i].replace(
+                    greek_letter, greek_dict[greek_letter])
+
+        while (formulas[i].find('frac{') != -1):
+            formulas[i] = formulas[i].replace('frac{', '(')
+            formulas[i] = formulas[i].replace('}{', ')/(')
+            formulas[i] = formulas[i].replace('}', ')')
+
+        if (formulas[i].find('=') != -1):
+            left = sympy.sympify(formulas[i][:formulas[i].find('=')])
+            right = sympy.sympify(formulas[i][(formulas[i].find('=') + 1):])
+            formulas[i] = (f'{left} = {right}')
+        else:
+            formulas[i] = sympy.sympify(formulas[i])
+
+    print(formulas)
+    return formulas
+
+
+if __name__ == '__main__':
+    data = parsing('C:\\Users\\Ducky\\OneDrive\\Документы\\GitHub\\202-Advanced-Python-3\\test.txt')

test.txt

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+$$l=t+i*f/s$$
+dxhbzrar
+$a-b=c+f*r$
+dfgbfnst
+\begin{equation}r=g+g+o+m*k\end{equation}
+\(r-f=z+v\)dvsv
+sedtgb
+\begin{equation}\frac{7*u*j}{47 - \beta} + s*d*s*m*t -\frac{1 - x}{2132 - \phi} + \frac{1 - x}{232 - \alpha}\end{equation}
+skjvbbksjvk $$h=k+i*i$$ ekvjeorjvekvj
+$j=r+d*y$
+fbsnrhagr
+$$x=a+b*y/s$$
+$$n-p=v+n*b$$
+\begin{equation}b=a+g+t+y*c\end{equation}
+skjvbbksjvk $$h=k+i*i$$ ekvjeorjvekvj
+$j=k+y*y$

versionV1.py

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+import sympy.abc
+import re
+
+
+def parsing():
+    with open('example.tex') as f:
+        data = f.read()
+        formulas = list()
+        data = data.replace('$$', '$')
+        formulas.append(re.findall(r'\\begin{equation}([\s\S]*?)\\end{equation}', data))
+        formulas.append(re.findall(r'\$([^$]+)\$', data))
+
+    i = 0
+    while i < len(formulas):
+        if len(formulas[i]) == 0:
+            formulas.pop(i)
+            i -= 1
+        i += 1
+
+    for i in range(len(formulas)):
+        for j in range(len(formulas[i])):
+            temp = formulas[i][j].replace('\\', '')
+            formulas[i][j] = temp
+    print(formulas)
+    return formulas
+
+
+if __name__ == '__main__':
+    data = parsing()
+    for i in range(len(data)):
+        for j in range(len(data[i])):
+            expr = sympy.Eq(*map(sympy.sympify, (data[i][j].split("="))))
+            print(expr)