83 lines
1.1 KiB
Markdown
83 lines
1.1 KiB
Markdown
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# Simple BASIC language implementation
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The goal of this project is to create a simple implementation of a BASIC-like language.
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No need to do complex thing, just to create a simple interpreted language that can be used to do some arithmetics
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and create for ex a number guessing game.
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## Technology
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We will create our own regex engine
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## Syntax
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One instruction set per line
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Instruction sets avalaibles:
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### Commentary
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can only use single line comments with `#`
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```
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# this is a comment
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```
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### Expression evaluation
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can only operate on integer
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function calls: func(arg_a, arg_b)
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operators: +, *, /
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booleans operators: not, and, or,
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### function definition
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```
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function {NAME}
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begin
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...
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end
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```
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### Set a variable
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```
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set {VARNAME} to {EXPRESSION}
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```
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### Conditional structure
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```
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if {EXPRESSION} then
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begin
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...
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end
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```
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### Conditional loop
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```
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while {EXPRESSION} do
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begin
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...
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end
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```
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### Unconditional loop
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```
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repeat {EXPRESSION THAT EVALUATE TO INT}
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begin
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end
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```
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### std functions
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```
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put_stdout()
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take_stdin()
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int_of_string()
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random_int(min, max)
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```
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