Merge dc5fbc4026 into sapling-pr-archive-AdeAttwood

src/lib.rs

@@ -17,7 +17,10 @@ fn concert_replacement(original: &str, replacement: &str) -> String {
 pub fn replace(search: &String, replace: String, input: String) -> String {
     let mut index = 0;
     let mut output = input;
-    let search_pattern = Regex::new(&format!("(?i){search}")).unwrap();
+    let search_pattern = match Regex::new(&format!("(?i){search}")) {
+        Ok(pattern) => pattern,
+        Err(_) => return output
+    };
 
     while let Some(search_match) = search_pattern.find_at(&output, index) {
         let start = search_match.start();

src/main.rs

@@ -11,17 +11,26 @@ struct Args {
     /// The replacement pattern.
     #[arg(short, long)]
     replace: String,
+
+    /// The input content to search and replace. If not provided, input will be read from stdin.
+    #[arg(short, long)]
+    input: Option<String>,
 }
 
 fn main() {
     let args = Args::parse();
 
-    let mut input = String::new();
+    let input = match args.input {
-    match std::io::stdin().read_to_string(&mut input) {
+        Some(input) => input,
-        Ok(_) => (),
+        None => {
-        Err(err) => {
+            let mut input = String::new();
-            eprintln!("Error reading from stdin: {}", err);
+            match std::io::stdin().read_to_string(&mut input) {
-            return;
+                Ok(_) => input,
+                Err(err) => {
+                    eprintln!("Error reading from stdin: {}", err);
+                    return;
+                }
+            }
         }
     };
 

tests/features/regex.feature

@@ -17,3 +17,9 @@ Feature: Regex search and replace
     And Replace is 'Hello ${1}s'
     And Input is 'Hello world'
     Then Output is 'Hello worlds'
+
+  Scenario: You can search with an invalid regular expression
+    Given Search is '(\w+'
+    And Replace is 'new'
+    And Input is 'this is a'
+    Then Output is 'this is a'