diff --git a/src/chmod/mod.rs b/src/chmod/mod.rs
deleted file mode 100644
index 1af9b14..0000000
--- a/src/chmod/mod.rs
+++ /dev/null
@@ -1 +0,0 @@
-//! Functions for parsing and managing permissions
diff --git a/src/lib.rs b/src/lib.rs
index 3acdb72..a21defb 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,10 +1,10 @@
 #![warn(clippy::all, clippy::pedantic)]
 use std::{env, path::PathBuf, process, string::ToString};
 
-pub mod chmod;
 mod cmd;
 pub use cmd::Cmd;
 pub mod math;
+pub mod mode;
 pub mod pw;
 
 /// Defines the location relative to the binary where a command will be installed
diff --git a/src/mode/mod.rs b/src/mode/mod.rs
new file mode 100644
index 0000000..0215d18
--- /dev/null
+++ b/src/mode/mod.rs
@@ -0,0 +1,38 @@
+//! Functions for parsing and managing permissions
+
+#[derive(Debug, PartialEq)]
+pub enum Bits {
+    Suid = 0o4000,
+    Sgid = 0o2000,
+    Sticky = 0o1000,
+    URead = 0o400,
+    UWrite = 0o200,
+    UExec = 0o100,
+    GRead = 0o40,
+    GWrite = 0o20,
+    GExec = 0o10,
+    ORead = 0o4,
+    OWrite = 0o2,
+    OExec = 0o1,
+}
+
+#[derive(Debug, PartialEq)]
+pub enum Op {
+    Add,
+    Remove,
+    Equals,
+}
+
+#[derive(Debug, PartialEq)]
+pub enum Who {
+    User,
+    Group,
+    Other,
+    All,
+}
+
+pub struct Parser {
+    mode: u32,
+    op: Op,
+    who: Who,
+}