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b30c7dd6fc
Step 0 alone only act as an echo for the input, define the sructure of the interpreter Signed-off-by: teo3300 <matteo.rogora@live.it>
30 lines
708 B
Rust
30 lines
708 B
Rust
// Structure the main functions of the interpreter
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//
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// For now just act as an echo, note that each function should not modify the
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// input, thus this can be referenced by the previous step without the need
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// to allocate more memory
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#[allow(non_snake_case)]
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/// Read input and generate an ast
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fn READ(input: &str) -> String {
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input.to_string()
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}
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#[allow(non_snake_case)]
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/// Evaluate the generated ast
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fn EVAL(input: &str) -> String {
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input.to_string()
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}
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#[allow(non_snake_case)]
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/// Print out the result of the evaluation
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fn PRINT(input: &str) -> String {
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input.to_string()
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}
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pub fn rep(input: &str) -> String {
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let ast = READ(input);
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let result = EVAL(&ast);
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PRINT(&result)
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}
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