improve uuid validation and fix naming issues

Author: mschuchard

src/model/client.rs

@@ -1,6 +1,6 @@
-//! # Customer
+//! # Client
 //!
-//! `model::customer` is a model for the Ruddr Client object. This module is not publically accessible, but the structs and members are public for reading from `interface::customer` returns.
+//! `model::client` is a model for the Ruddr Client object. This module is not publically accessible, but the structs and members are public for reading from `interface::client` returns.
 //! [API Documentation](https://ruddr.readme.io/reference/client-object)
 use crate::model::{shared, types};
 use serde::Deserialize;

src/model/expense_item.rs

@@ -1,4 +1,4 @@
-//! # Expense
+//! # Expense Item
 //!
 //! `model::expense_item` is a model for the Ruddr Expense Item object. This module is not publically accessible, but the structs and members are public for reading from `interface::expense_item` returns.
 //! [API Documentation](https://ruddr.readme.io/reference/expense-item-object) (documentation has `Description` of `statusId` and `vendor` switched)

src/model/expense_report.rs

@@ -1,6 +1,6 @@
-//! # Expense
+//! # Expense Report
 //!
-//! `model::expense` is models for the Ruddr Expense Report and Expense Item objects. This module is not publically accessible, but the structs and members are public for reading from `interface::expense` returns.
+//! `model::expense_report` is models for the Ruddr Expense Report and Expense Item objects. This module is not publically accessible, but the structs and members are public for reading from `interface::expense_report` returns.
 //! [API Documentation](https://ruddr.readme.io/reference/expense-report-object)
 use crate::model::{shared, types};
 use serde::Deserialize;

src/model/types.rs

@@ -154,7 +154,10 @@ pub struct UUID(pub(super) String);
 impl UUID {
     // constructor with validation used within type converters
     fn new(uuid: String) -> Result<Self, String> {
-        let uuid_validator = Regex::new(r"^\w{8}-\w{4}-\w{4}-\w{4}-\w{12}$").unwrap();
+        let uuid_validator = Regex::new(
+            r"^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$",
+        )
+        .unwrap();
         if uuid_validator.is_match(&uuid) {
             Ok(UUID(uuid))
         } else {