Cargo.toml

@@ -14,7 +14,7 @@ keywords = ["cli"]
 
 [dependencies]
 anyhow = "1.0.83"
-base64 = "0.22.1"
 clap = { version = "4.5.4", features = ["derive"] }
 clap-num = "1.1.1"
+fast32 = "1.0.2"
 

src/format.rs

@@ -1,4 +1,4 @@
-use base64::prelude::*;
+use fast32;
 
 pub type Num = u128;
 
@@ -9,6 +9,7 @@ pub enum Format {
     Bin,
     Octal,
     Base64,
+    Base32,
 }
 
 impl Format {
@@ -25,6 +26,8 @@ impl Format {
             Format::Octal => "0o",
             // perl and a few other programs seem to use this too
             Format::Base64 => "0s",
+            // no idea, I made this up
+            Format::Base32 => "032s",
         }
         .to_string()
     }
@@ -46,7 +49,8 @@ impl Format {
             Format::Dec => {
                 buf += &format!("{num}");
             }
-            Format::Base64 => buf += &BASE64_STANDARD.encode(u128_to_u8_slice(num)),
+            Format::Base64 => buf += &fast32::base64::RFC4648.encode(&u128_to_u8_slice(num)),
+            Format::Base32 => buf += &fast32::base32::RFC4648.encode(&u128_to_u8_slice(num)),
         }
         buf
     }

src/main.rs

@@ -13,7 +13,7 @@ use format::*;
 #[clap(author, version, about, long_about = None)]
 #[clap(group(
             ArgGroup::new("format")
-                .args(&["hex", "bin", "oct", "dec", "base64"]),
+                .args(&["hex", "bin", "oct", "dec", "base64", "base32"]),
         ))]
 struct Cli {
     #[arg(short, long)]
@@ -34,6 +34,9 @@ struct Cli {
     #[arg(short = 's', long)]
     /// format to base64
     base64: bool,
+    #[arg(short = 'z', long)]
+    /// format to base32
+    base32: bool,
     #[clap(value_parser=maybe_hex::<Num>, required=true)]
     /// at least one number that should be formatted
     ///
@@ -51,6 +54,8 @@ impl Cli {
             Format::Dec
         } else if self.base64 {
             Format::Base64
+        } else if self.base32 {
+            Format::Base32
         } else if self.hex {
             Format::Hex
         } else {