From c2cbc9fe6eef6a10a5fd85f363e45bee7d6db9aa Mon Sep 17 00:00:00 2001
From: Botahamec <botahamec@outlook.com>
Date: Sat, 29 Jul 2023 20:33:57 -0400
Subject: Create character sets

---
 src/csets.rs | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 src/csets.rs

(limited to 'src/csets.rs')

diff --git a/src/csets.rs b/src/csets.rs
new file mode 100644
index 0000000..ab924dc
--- /dev/null
+++ b/src/csets.rs
@@ -0,0 +1,51 @@
+pub trait CharacterSet {
+	fn contains(ch: char) -> bool;
+}
+
+pub struct AnyCharacter;
+
+impl CharacterSet for AnyCharacter {
+	fn contains(_: char) -> bool {
+		true
+	}
+}
+
+pub struct Ascii;
+
+impl CharacterSet for Ascii {
+	fn contains(ch: char) -> bool {
+		ch.is_ascii()
+	}
+}
+
+pub struct AsciiDigits;
+
+impl CharacterSet for AsciiDigits {
+	fn contains(ch: char) -> bool {
+		ch.is_ascii_digit()
+	}
+}
+
+pub struct AsciiLowercase;
+
+impl CharacterSet for AsciiLowercase {
+	fn contains(ch: char) -> bool {
+		ch.is_ascii_lowercase()
+	}
+}
+
+pub struct AsciiUppercase;
+
+impl CharacterSet for AsciiUppercase {
+	fn contains(ch: char) -> bool {
+		ch.is_ascii_uppercase()
+	}
+}
+
+pub struct AsciiLetters;
+
+impl CharacterSet for AsciiLetters {
+	fn contains(ch: char) -> bool {
+		ch.is_ascii_alphabetic()
+	}
+}
-- 
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