feat: graphemes trim_count

Cargo.toml

@@ -9,6 +9,9 @@ name = "licactlib"
 path = "src/lib.rs"
 doctest = false
 
+[dependencies]
+unicode-segmentation = "1"
+
 [profile.release]
 # debug = true      # Enable debug symbols
 strip = true        # Strip symbols from binary

src/graphemes.rs

@@ -0,0 +1,25 @@
+#![allow(dead_code)]
+
+use unicode_segmentation::UnicodeSegmentation;
+
+trait Trim {
+  fn trim_count(&self, count: usize) -> String;
+}
+
+impl Trim for str {
+  fn trim_count(&self, count: usize) -> String {
+    UnicodeSegmentation::graphemes(self, true).take(count).collect()
+  }
+}
+
+#[cfg(test)]
+mod tests {
+  use super::*;
+
+  #[test]
+  fn test_graphemes() {
+    let s = "a̐éö̲\r\n";
+    let result = s.trim_count(2);
+    assert_eq!(result, "a̐é");
+  }
+}

src/lib.rs

@@ -1,2 +1,3 @@
+pub mod graphemes;
 pub mod mutate_in_closure;
 pub mod vec_any;