grammar.md

$$ \begin{align}

[\textcolor{red}{prog}] &\to [\textcolor{lime}{stmt}]^*
\\
[\textcolor{red}{stmt}] &\to \begin{cases}
	\textcolor{cyan}{exit}([\textcolor{lime}{expr}]);\\
	\textcolor{cyan}{var}\space\textcolor{yellow}{varIdent};\\
	\textcolor{yellow}{varIdent}=[\textcolor{lime}{expr}];\\
	[\textcolor{lime}{scope}]\\
	[\textcolor{lime}{if}]\\
	\textcolor{cyan}{while}([\textcolor{lime}{expr}])[\textcolor{lime}{scope}]\\
	\textcolor{cyan}{break};\\
	\textcolor{cyan}{continue};\\
	\textcolor{cyan}{func}\space\text{intLiteral}\space\textcolor{yellow}{funcIdent}(\textcolor{yellow}{param1},^*)[\textcolor{lime}{scope}]\\
	[\textcolor{lime}{funcCall}];\\		
	\textcolor{cyan}{return}\space[\textcolor{lime}{expr}],^*;\\
\end{cases}
\\
[\textcolor{red}{expr}] &\to \begin{cases}
	[\textcolor{lime}{term}]\\
	[\textcolor{lime}{binExpr}]\\
\end{cases}
\\
[\textcolor{red}{binExpr}] &\to \begin{cases}
	[\textcolor{lime}{expr}]*[\textcolor{lime}{expr}] & \textcolor{magenta}{prec=1}\\
	[\textcolor{lime}{expr}]/[\textcolor{lime}{expr}] & \textcolor{magenta}{prec=1}\\
	[\textcolor{lime}{expr}]+[\textcolor{lime}{expr}] & \textcolor{magenta}{prec=0}\\
	[\textcolor{lime}{expr}]-[\textcolor{lime}{expr}] & \textcolor{magenta}{prec=0}\\
\end{cases}
\\
[\textcolor{red}{term}] &\to \begin{cases}
	\text{intLiteral}\\
	\textcolor{yellow}{varIdent}\\
	([\textcolor{lime}{expr}])\\
	[\textcolor{lime}{funcCall}]
\end{cases}
\\
[\textcolor{red}{scope}] &\to \{[\textcolor{lime}{stmt}]^*\}
\\
[\textcolor{red}{if}] &\to \textcolor{cyan}{if}([\textcolor{lime}{expr}])[\textcolor{lime}{scope}]<\textcolor{cyan}{else}\space[\textcolor{lime}{else}]>\\
[\textcolor{red}{else}] &\to \begin{cases}
	[\textcolor{lime}{if}]\\
	[\textcolor{lime}{scope}]\\
\end{cases}\\

[\textcolor{red}{funcCall}] &\to \textcolor{yellow}{funcIdent}([\textcolor{lime}{expr}],^*)\\

\end{align} $$

Tmp:

Variable syntax

access var name type;
private var score int;
score = 5;

score := 5 (assume private when using :=)

Function syntax

func modifiers <generics> Tr1, Tr2 f(a, b) {}
func public const <T implements Comparable> (T, int, error) num(T trait, string name) {
	return 22;
}