Daniel Worthington-Bodart danielbodart
danielbodart
/ macro.calling.rs
Last active
December 21, 2016 21:43
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #[macro_export] | |
| macro_rules! optional ( | |
| ($i:expr, $submac:ident!( $($args:tt)* )) => ( | |
| { | |
| opt!($i, complete!($i, $submac!($i, $($args)*))) | |
| } | |
| ); | |
| ($i:expr, $f:expr) => ( | |
| optional!($i, call!($f)); | |
| ); |
danielbodart
/ among-predicate.rs
Created
December 19, 2016 22:00
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| pub fn among(characters:&[u8]) -> Box<Fn(u8) -> bool> { | |
| Box::new(move |chr| { | |
| characters.iter().any(chr) | |
| }) | |
| } |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #[macro_export] | |
| macro_rules! filter ( | |
| ($i:expr, $c: expr) => ( | |
| { | |
| if $i.is_empty() { | |
| nom::IResult::Incomplete(nom::Needed::Size(1)) | |
| } else { | |
| if $c($i[0]) { | |
| nom::IResult::Done(&$i[1..], &$i[0..1]) | |
| } else { |
NewerOlder