122 lines
1.9 KiB
Markdown
122 lines
1.9 KiB
Markdown
`?` 0 or 1 instances
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`*` 0 or more instance
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`+` 1 or more instances
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`<NL>` New line
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`<IDENT>` Identifier
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### Statement Function
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`<IDENT> fun (: <NL>? <IDENT> <TYPE> (, <NL?> <IDENT> <TYPE>)*)? (-> <NL>? <TYPE>)? <NL> ;`
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```
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stuff fun
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;
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stuff fun -> sint32
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ret 42
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;
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stuff fun: num1 sint32,
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num2 sint32 ->
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sint32
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ret num1 + num2
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;
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```
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### Statement Assignment
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`<IDENT> <- <Expression> <NL>`
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```
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num1 <- 5
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```
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### StatementBlock
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(<Statement> <NL>)*
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### StatementExpression
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<Expression> <NL>
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StatementFunction:
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<IDENT> fun (: <NLO> <IDENT> <TYPE> (, <NLO> <IDENT> <TYPE>)*)? (-> <NLO> <TYPE>)? <NL>
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;
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### StatementLoop
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`loop [<StatementVariable> | <StatementAssignment>] (, <NL>? <Expression> (, <NL>? <Expression>)?)? <NL> <StatementBlock> ;`
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```
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loop i sint32 <- 0, true, i < 10
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doStuff(i)
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;
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loop i sint32 <- 0,
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true, i < 10
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doStuff(i)
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;
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loop i sint32 <- 0,
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true,
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i < 10
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doStuff(i)
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;
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```
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`loop (<ExpressionLogical> (, <NL>? <ExpressionLogical>)?)? <NL> <StatementBlock> ;`
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StatementMetaExternFunction:
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@extern <IDENT> fun (: <NLO> <IDENT> <TYPE> (, <NLO> <IDENT> <TYPE>)*)? (-> <NLO> <TYPE>)? <NL>
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### StatementReturn
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`ret <Expression>`
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### Statemnet Variable
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`<IDENT> <TYPE> <- <Expression>`
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### ExpressionVariable:
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`<IDENT>`
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### Expression If Else:
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`if <Expression> : <ExpressionBlock>`
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```
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if num1 > 10: putchar('T')
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```
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`if <Expression> : <NL> <ExpressionBlock> ;`
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```
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if num1 > 10:
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num1 <- 500
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putchar('S')
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;
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```
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`if <Expression> : <ExpressionBlock> else <ExpressionBlock>`
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```
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if num1 > 10: putchar('T') else putchar('N')
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```
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`if <Expression> : <NL> <ExpressionBlock> else <NL> <ExpressionBlock> ;`
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```
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if num1 > 10:
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putchar('T')
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else
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putchar('N')
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;
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```
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`if <Expression> : <ExpressionBlock> else <NL> <ExpressionBlock> <NL> ;`
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```
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if num1 > 10: putchar('T') else
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num1 <- 500
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putchar('F')
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;
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```
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### Expression Block
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`(<Statement> <NL>)* (<StatementExpression> <NL>?)? <TER>!` |