diff options
| -rw-r--r-- | src/csets.rs | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/src/csets.rs b/src/csets.rs index ab924dc..0d33bd9 100644 --- a/src/csets.rs +++ b/src/csets.rs @@ -1,11 +1,13 @@ +use std::collections::HashSet; + pub trait CharacterSet { - fn contains(ch: char) -> bool; + fn contains(&self, ch: char) -> bool; } pub struct AnyCharacter; impl CharacterSet for AnyCharacter { - fn contains(_: char) -> bool { + fn contains(&self, _: char) -> bool { true } } @@ -13,7 +15,7 @@ impl CharacterSet for AnyCharacter { pub struct Ascii; impl CharacterSet for Ascii { - fn contains(ch: char) -> bool { + fn contains(&self, ch: char) -> bool { ch.is_ascii() } } @@ -21,7 +23,7 @@ impl CharacterSet for Ascii { pub struct AsciiDigits; impl CharacterSet for AsciiDigits { - fn contains(ch: char) -> bool { + fn contains(&self, ch: char) -> bool { ch.is_ascii_digit() } } @@ -29,7 +31,7 @@ impl CharacterSet for AsciiDigits { pub struct AsciiLowercase; impl CharacterSet for AsciiLowercase { - fn contains(ch: char) -> bool { + fn contains(&self, ch: char) -> bool { ch.is_ascii_lowercase() } } @@ -37,7 +39,7 @@ impl CharacterSet for AsciiLowercase { pub struct AsciiUppercase; impl CharacterSet for AsciiUppercase { - fn contains(ch: char) -> bool { + fn contains(&self, ch: char) -> bool { ch.is_ascii_uppercase() } } @@ -45,7 +47,25 @@ impl CharacterSet for AsciiUppercase { pub struct AsciiLetters; impl CharacterSet for AsciiLetters { - fn contains(ch: char) -> bool { + fn contains(&self, ch: char) -> bool { ch.is_ascii_alphabetic() } } + +impl CharacterSet for &[char] { + fn contains(&self, ch: char) -> bool { + (self as &[char]).contains(&ch) + } +} + +impl CharacterSet for &str { + fn contains(&self, ch: char) -> bool { + self.chars().any(|c| c == ch) + } +} + +impl CharacterSet for HashSet<char> { + fn contains(&self, ch: char) -> bool { + self.contains(&ch) + } +} |