add: 8 projects

variables, shadowing, another_function, branches, loops, fahr2cel,
fibonacci, christmax_song

2 files changed, 65 insertions, 0 deletions

diff --git a/src/christmas_song/Cargo.toml b/src/christmas_song/Cargo.toml
new file mode 100644
index 0000000..25474b6
--- /dev/null
+++ b/src/christmas_song/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "christmas_song"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
diff --git a/src/christmas_song/src/main.rs b/src/christmas_song/src/main.rs
new file mode 100644
index 0000000..b04524d
--- /dev/null
+++ b/src/christmas_song/src/main.rs
@@ -0,0 +1,59 @@
+fn main() {
+    const DAYS_AND_GIFTS: [[&str; 3]; 12] = [
+        ["first", "a", "brand new SCV"],
+        ["second", "two", "Terran Wraiths"],
+        ["third", "three", "Marines"],
+        ["fourth", "four", "Hydralisks"],
+        ["fifth", "five", "newborn Queens"],
+        ["sixth", "six", "Zealots fighting"],
+        ["seventh", "seven", "Zerglings swarming"],
+        ["eighth", "eight", "Archons burning"],
+        ["ninth", "nine", "Battlecruisers"],
+        ["tenth", "ten", "Ultralisks"],
+        ["eleventh", "eleven", "Science Vessels"],
+        ["twelfth", "twelve", "Arbiters"],
+    ];
+
+    for i in 0..12 {
+        println!("On the {} day of Christmas, Blizzard gave to me:",
+            DAYS_AND_GIFTS[i][0]);
+        
+        let mut gifts = String::new();
+
+        for j in 0..=i {
+            gifts = match j {
+                0 => format!("{} {}.\n",
+                    DAYS_AND_GIFTS[j][1],
+                    DAYS_AND_GIFTS[j][2],),
+                1 => format!("{} {} and {gifts}",
+                    DAYS_AND_GIFTS[j][1],
+                    DAYS_AND_GIFTS[j][2]),
+                _ => format!("{}, {gifts}",
+                    match i {
+                        8 if j == 7 => "power overwhelming".to_string(),
+                        9 if j == 7 => "terror all-consuming".to_string(),
+                        10 if j == 7 => "I hate all this singing".to_string(),
+                        _ => format!("{} {}",
+                            DAYS_AND_GIFTS[j][1],
+                            DAYS_AND_GIFTS[j][2]),
+                    }
+                )
+            }
+        }
+
+        println!("{}", capitalize(&gifts));
+    }
+    
+    println!("Why am I so jolly?\n");
+    println!("Hey! Who spiked the egg nog?");
+}
+
+fn capitalize(s: &str) -> String {
+    let mut chars = s.chars();
+
+    match chars.next() {
+        Some(first) => first.to_uppercase().collect::<String>()
+            + chars.as_str(),
+        None => String::new(),
+    }
+}