From 4c36af1d5060ba1d0e14a50c937b4c15399c98e5 Mon Sep 17 00:00:00 2001
From: Jonathan Flueren <jonathan.flueren@tu-dortmund.de>
Date: Fri, 7 Jul 2023 11:19:14 +0200
Subject: [PATCH] Initial commit

---
 .gitignore |  2 ++
 Cargo.toml |  8 +++++
 src/lib.rs | 86 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 96 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Cargo.toml
 create mode 100644 src/lib.rs

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4fffb2f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/target
+/Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..4f60711
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "schmfy"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..17620d3
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,86 @@
+// Schmfies any String
+pub fn schmfy(source: String) -> String {
+    if source.starts_with("schm") {
+        return source;
+    }
+
+    // if source is subsite (e.g. news/fsr), schmfy all parts separately
+    if source.contains('/') {
+        return source
+            .split('/')
+            .map(|s| schmfy(String::from(s)))
+            .collect::<Vec<String>>()
+            .join("/");
+    }
+
+    if source.is_empty() {
+        return source;
+    }
+
+    // schmfy first char if word is no longer than 3
+    if source.len() <= 3 {
+        let (prefix, suffix) = source.split_at(1);
+        let c = prefix.chars().next().unwrap_or('-');
+        return schmfy_char(c) + suffix;
+    }
+
+    // Normal words - replace prefix before first vocal
+    // with "schm"
+    let vok_pos = source
+        .chars()
+        .position(|c| "aeiouäöü".contains(c))
+        .unwrap_or(0);
+
+    let (_, suffix) = source.split_at(vok_pos);
+
+    String::from("schm") + suffix
+}
+
+// Schmfies single char
+fn schmfy_char(c: char) -> String {
+    let mut ret = String::from("schm");
+    match c {
+        'a' | 'e' | 'i' | 'o' | 'u' | 'ä' | 'ö' | 'ü' => {
+            ret.push(c);
+        }
+        'b' | 'c' | 'd' | 'g' | 'p' | 't' | 'w' => ret.push('e'),
+        'f' | 'l' | 'm' | 'n' | 'r' | 's' => {
+            ret.push('e');
+            ret.push(c)
+        }
+        'h' | 'k' => ret.push('a'),
+        'j' => {
+            ret.push('o');
+            ret.push('t')
+        }
+        'q' => ret.push('u'),
+        'v' => {
+            ret.push('a');
+            ret.push('u')
+        }
+        'x' => {
+            ret.push('i');
+            ret.push('x')
+        }
+        'y' => ret.push(c),
+        'z' => {
+            ret.push('e');
+            ret.push('t')
+        }
+        _ => ret.push(c),
+    }
+
+    ret
+}
+
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let schmfied = schmfy(String::from("test"));
+        assert_eq!(schmfied, "schmest");
+    }
+}