Initial Commit: PasswordMaker itself.

It's compiling, and the public interface is semi-OK now.
The internals are still a bit gory, but they'll likely see an iteartion
later on anyhow.

1 files changed, 11 insertions, 0 deletions

diff --git a/src/passwordmaker/grapheme.rs b/src/passwordmaker/grapheme.rs
new file mode 100644
index 0000000..ee10146
--- /dev/null
+++ b/src/passwordmaker/grapheme.rs
@@ -0,0 +1,11 @@
+use unicode_segmentation::UnicodeSegmentation;
+#[derive(Clone)]
+pub(super) struct Grapheme<'a>(&'a str);
+
+impl<'a> Grapheme<'a> {
+    pub(super) fn iter_from_str(string : &'a str) -> impl Iterator<Item=Grapheme<'a>> {
+        string.graphemes(true).map(Self::extract_grapheme_unchecked)
+    }
+    pub(super) fn get<'b>(&'b self) -> &'a str { self.0 }
+    fn extract_grapheme_unchecked(s : &str) -> Grapheme { Grapheme(s) }
+}
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