Hello Everyone, I hope you all are doing well. I am trying to implement a toy program that takes an input expression and outputs the calculated result. The desired functionality is similar to print input() in Python. Luckily, I have found the Easy Expression Eval lib more capable than expected. T…

Hi Sunrise, if you are talking about GitHub - eltony81/easy_expression_eval , I can say it is intended to evaluate just math expression. Let me know if you are suggestions or if there are issues. Thanks in advance

For reading a line from stdin and printing it to stdout you can use this: puts gets

Enm, it’s executing a statement in fact. The same as puts eval(input_expression) in Ruby. Is there similar any similar method in Crystal?

Ah okay. I was looking at Built-in Functions — Python 3.11.4 documentation which seems to be the equivalent of gets in Crystal. Evaluation of code at runtime is not possible in Crystal because it’s a compiled language and the compiler builds the entire program ahead of time and is no longer availab…

Implementing Input Expression and Outputting Calculation Results

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Sunrise June 27, 2023, 5:33am 3

Well, I am just asking for a way to implement print input() with the Crystal language standard library.

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Implementing Input Expression and Outputting Calculation Results

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