build: remove regex dependency in favor of rust iterators

Cargo.lock

@@ -46,15 +46,6 @@ dependencies = [
  "zerocopy 0.7.35",
 ]
 
-[[package]]
-name = "aho-corasick"
-version = "1.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
-dependencies = [
- "memchr",
-]
-
 [[package]]
 name = "aligned-vec"
 version = "0.5.0"
@@ -2477,35 +2468,6 @@ dependencies = [
  "thiserror 1.0.69",
 ]
 
-[[package]]
-name = "regex"
-version = "1.11.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b544ef1b4eac5dc2db33ea63606ae9ffcfac26c1416a2806ae0bf5f56b201191"
-dependencies = [
- "aho-corasick",
- "memchr",
- "regex-automata",
- "regex-syntax",
-]
-
-[[package]]
-name = "regex-automata"
-version = "0.4.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "809e8dc61f6de73b46c85f4c96486310fe304c434cfa43669d7b40f711150908"
-dependencies = [
- "aho-corasick",
- "memchr",
- "regex-syntax",
-]
-
-[[package]]
-name = "regex-syntax"
-version = "0.8.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
-
 [[package]]
 name = "renderdoc-sys"
 version = "1.1.0"
@@ -4196,7 +4158,6 @@ dependencies = [
  "native-dialog",
  "parking_lot",
  "raw-cpuid",
- "regex",
  "rustyline",
  "serde",
  "sysinfo",

engine/Cargo.toml

@@ -12,7 +12,6 @@ chrono = "0.4.39"
 colored = "3.0.0"
 parking_lot.workspace = true
 # TBR (if possible)
-regex = "1.11.1"
 rustyline = { version = "15.0.0", features = ["derive", "rustyline-derive"] }
 thiserror = "2.0.11"
 # Tokio is heavy but so far its the best option, we should make better use of it or switch to another runtime.

engine/src/core/panic.rs

@@ -6,7 +6,6 @@ use std::{error::Error, path::PathBuf};
 use backtrace::Backtrace;
 use native_dialog::{MessageDialog, MessageType};
 use parking_lot::Once;
-use regex::Regex;
 use tracing::error;
 
 static INIT: parking_lot::Once = Once::new();
@@ -71,27 +70,26 @@ For future reference, the error summary is as follows:
 
     println!("{}", final_msg.red().bold());
 
-    if let Err(e) =  MessageDialog::new()
+    if let Err(e) = MessageDialog::new()
         .set_type(MessageType::Error)
         .set_title("A fatal error in Zenyx has occurred")
         .set_text(&final_msg)
-        .show_confirm() {
-            error!("Failed to show message dialog: {e}")
-        }
-    
-        Ok(())
+        .show_confirm()
+    {
+        error!("Failed to show message dialog: {e}")
+    }
+
+    Ok(())
 }
 fn capture_backtrace() -> String {
     let mut backtrace = String::new();
-    let sysinfo  = crate::metadata::SystemMetadata::current();
+    let sysinfo = crate::metadata::SystemMetadata::current();
     backtrace.push_str(&sysinfo.verbose_summary());
 
     let trace = backtrace::Backtrace::new();
     let message = format!("\nBacktrace:\n\n");
     backtrace.push_str(&message);
     backtrace.push_str(&format!("{trace:?}"));
-    
-
 
     backtrace
 }
@@ -102,8 +100,78 @@ trait Sanitize {
 
 impl Sanitize for str {
     fn sanitize_path(&self) -> String {
-        let username_pattern = r"(?i)(/home/|/Users/|\\Users\\)([^/\\]+)";
-        let re = Regex::new(username_pattern).expect("Failed to compile regex for sanitization");
-        re.replace_all(self, "${1}<USER>").to_string()
+        let prefixes = ["/home/", "/Users/", "\\Users\\", "/opt/home/"];
+        let mut result = String::from(self);
+
+        for prefix in prefixes {
+            if let Some(start_index) = result.find(prefix) {
+                let start_of_user = start_index + prefix.len();
+                let mut end_of_user = result[start_of_user..]
+                    .find(|c| c == '/' || c == '\\')
+                    .map(|i| start_of_user + i)
+                    .unwrap_or(result.len());
+                if end_of_user == start_of_user && start_of_user < result.len() {
+                    end_of_user = result.len();
+                }
+                result.replace_range(start_of_user..end_of_user, "<USER>");
+                break;
+            }
+        }
+        result
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_sanitize_home() {
+        assert_eq!(
+            "/home/<USER>/documents",
+            "/home/john.doe/documents".sanitize_path()
+        );
+        assert_eq!("/home/<USER>", "/home/jane".sanitize_path());
+        assert_eq!("/opt/home/<USER>", "/opt/home/user".sanitize_path());
+    }
+
+    #[test]
+    fn test_sanitize_users_unix() {
+        assert_eq!(
+            "/Users/<USER>/desktop",
+            "/Users/alice/desktop".sanitize_path()
+        );
+        assert_eq!("/Users/<USER>/", "/Users/bob/".sanitize_path());
+        assert_eq!("/user/Users/<USER>", "/user/Users/name".sanitize_path());
+    }
+
+    #[test]
+    fn test_sanitize_users_windows() {
+        assert_eq!(
+            "\\Users\\<USER>\\documents",
+            "\\Users\\charlie\\documents".sanitize_path()
+        );
+        assert_eq!("\\Users\\<USER>", "\\Users\\david".sanitize_path());
+        assert_eq!(
+            "C:\\Other\\Users\\<USER>",
+            "C:\\Other\\Users\\folder".sanitize_path()
+        );
+    }
+
+    #[test]
+    fn test_no_match() {
+        assert_eq!("/opt/data/file.txt", "/opt/data/file.txt".sanitize_path());
+    }
+
+    #[test]
+    fn test_mixed_separators() {
+        assert_eq!(
+            "/home/<USER>\\documents",
+            "/home/eve\\documents".sanitize_path()
+        );
+        assert_eq!(
+            "\\Users\\<USER>/desktop",
+            "\\Users\\frank/desktop".sanitize_path()
+        );
     }
 }

engine/src/core/repl/commands.rs

@@ -1,7 +1,6 @@
 use std::{fs, path::PathBuf, str::FromStr};
 
 use parking_lot::RwLock;
-use regex::Regex;
 
 use super::{handler::Command, input::tokenize};
 use crate::core::repl::handler::COMMAND_MANAGER;
@@ -286,14 +285,7 @@ fn eval(input: String) -> Result<Vec<(String, Option<Vec<String>>)>, ZenyxError>
             .with_message("Input was empty")
             .build());
     }
-
-    let pattern = Regex::new(r"[;|\n]").map_err(|e| {
-        ZenyxError::builder(ZenyxErrorKind::CommandParsing)
-            .with_message("Failed to compile regex")
-            .with_source(e)
-            .build()
-    })?;
-    let commands: Vec<&str> = pattern.split(&input).collect();
+    let commands: Vec<&str> = input.split(|c| c == ';' || c == '\n').collect();
     let mut evaluted = vec![];
 
     for command in commands {

engine/src/core/repl/input.rs

@@ -6,7 +6,6 @@ use std::{
 use chrono::Local;
 use colored::Colorize;
 use parking_lot::Mutex;
-use regex::Regex;
 use rustyline::{
     Cmd, Completer, ConditionalEventHandler, Editor, Event, EventContext, EventHandler, Helper,
     Hinter, KeyEvent, RepeatCount, Validator, completion::Completer, error::ReadlineError,
@@ -131,12 +130,10 @@ pub fn tokenize(command: &str) -> Vec<String> {
 }
 
 pub fn parse_command(input: &str) -> Result<Vec<String>> {
-    let pattern = Regex::new(r"[;|\n]").map_err(|_| {
-        ZenyxError::builder(ZenyxErrorKind::CommandParsing)
-            .with_message("Failed to compile regex pattern")
-            .build()
-    })?;
-    let commands: Vec<String> = pattern.split(input).map(String::from).collect();
+    let commands = input
+        .split(|c| c == ';' || c == '\n')
+        .map(|slice| slice.to_string())
+        .collect::<Vec<String>>();
     Ok(commands)
 }
 
@@ -145,12 +142,10 @@ pub fn evaluate_command(input: &str) -> Result<()> {
         return Ok(());
     }
 
-    let pattern = Regex::new(r"[;|\n]").map_err(|_| {
-        ZenyxError::builder(ZenyxErrorKind::CommandParsing)
-            .with_message("Failed to compile regex pattern")
-            .build()
-    })?;
-    let commands: Vec<&str> = pattern.split(input).collect();
+    let commands = input
+        .split(|c| c == ';' || c == '\n')
+        .map(|slice| slice.to_string())
+        .collect::<Vec<String>>();
 
     for command in commands {
         let command = command.trim();