more choice impls
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@ -47,3 +47,28 @@ where
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choice_loop(input, &[&self.0, &self.1, &self.2])
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}
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}
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impl<P1, P2, P3, P4, I, O, E> Choice<I, O, E> for (P1, P2, P3, P4)
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where
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P1: Parser<I, O, E>,
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P2: Parser<I, O, E>,
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P3: Parser<I, O, E>,
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P4: Parser<I, O, E>,
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{
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fn parse_choice(&self, input: I) -> Result<(O, I), (E, I)> {
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choice_loop(input, &[&self.0, &self.1, &self.2, &self.3])
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}
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}
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impl<P1, P2, P3, P4, P5, I, O, E> Choice<I, O, E> for (P1, P2, P3, P4, P5)
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where
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P1: Parser<I, O, E>,
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P2: Parser<I, O, E>,
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P3: Parser<I, O, E>,
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P4: Parser<I, O, E>,
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P5: Parser<I, O, E>,
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{
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fn parse_choice(&self, input: I) -> Result<(O, I), (E, I)> {
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choice_loop(input, &[&self.0, &self.1, &self.2, &self.3, &self.4])
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}
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}
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