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I have the following pure ASCII character list:

list ={"a", "\\:1d62", "\\:2081", "\\[Beta]", "\\:2081", " ", "+", " ", \
"a", "\\:1d62", "\\:2082", "\\[Beta]", "\\:2082", " ", "+", " ", ".", \
".", ".", " ", "+", " ", "a", "\\:2099", "\\:2081", "\\[Beta]", \
"\\:2099", " ", "=", " ", "b", "\\:1d62"}

How can I convert it to Mathematica Input Form ?

I tried: FromCharacterCode[ToString[#, "ASCII"] &/@list

But it does not work.

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  • $\begingroup$ You should be converting hex to decimal first before applying FromCharacterCode[]: FromCharacterCode[16^^1d62] $\endgroup$
    – J. M.'s missing motivation ♦
    Commented Oct 16, 2018 at 13:13
  • $\begingroup$ Or ToExpression["\\:1d62"]. $\endgroup$
    – Rohit Namjoshi
    Commented Oct 16, 2018 at 14:33
  • $\begingroup$ Do you want the output to be symbols or strings? Should it be a or "a"? Should it be \[Beta] or "[Beta]"? I assume it should be strings, otherwise you will have a mixture of strings and symbols, since there is no expression that matches " " or "+". $\endgroup$
    – Carl Woll
    Commented Oct 16, 2018 at 15:10
  • $\begingroup$ @CarlWoll The answer to this question is exactly what I was looking for. Do you think that one could use this to automate this question: mathematica.stackexchange.com/questions/183981/… $\endgroup$
    – james
    Commented Oct 16, 2018 at 15:30

1 Answer 1

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As @Rohit suggests in the comments, one possibility is to use ToExpression. However, to be safer, one might want to use Symbol instead. So:

Replace[
    list,
    a_ /; StringLength[a] > 1 :> Check[SymbolName @ Symbol[a], $Failed],
    {1}
] //InputForm

{"a", "ᵢ", "₁", "β", "₁", " ", "+", " ", "a", "ᵢ", "₂", "β", "₂", " ", "+", " ", ".", ".", ".", " ", "+", " ", "a", "ₙ", "₁", "β", "ₙ", " ", "=", " ", "b", "ᵢ"}

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