Chapter 13 from tech review

listings/ch12-an-io-project/listing-12-19/src/lib.rs

@@ -1,4 +1,5 @@
 // ANCHOR: here
+// ANCHOR: ch13
 pub fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> {
     let mut results = Vec::new();
 
@@ -10,6 +11,7 @@ pub fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> {
 
     results
 }
+// ANCHOR_END: ch13
 // ANCHOR_END: here
 
 #[cfg(test)]

listings/ch13-functional-features/listing-12-23-reproduced/src/lib.rs

@@ -1,50 +1,3 @@
-use std::env;
-use std::error::Error;
-use std::fs;
-
-pub struct Config {
-    pub query: String,
-    pub file_path: String,
-    pub ignore_case: bool,
-}
-
-// ANCHOR: ch13
-impl Config {
-    pub fn build(args: &[String]) -> Result<Config, &'static str> {
-        if args.len() < 3 {
-            return Err("not enough arguments");
-        }
-
-        let query = args[1].clone();
-        let file_path = args[2].clone();
-
-        let ignore_case = env::var("IGNORE_CASE").is_ok();
-
-        Ok(Config {
-            query,
-            file_path,
-            ignore_case,
-        })
-    }
-}
-// ANCHOR_END: ch13
-
-pub fn run(config: Config) -> Result<(), Box<dyn Error>> {
-    let contents = fs::read_to_string(config.file_path)?;
-
-    let results = if config.ignore_case {
-        search_case_insensitive(&config.query, &contents)
-    } else {
-        search(&config.query, &contents)
-    };
-
-    for line in results {
-        println!("{line}");
-    }
-
-    Ok(())
-}
-
 pub fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> {
     let mut results = Vec::new();
 

listings/ch13-functional-features/listing-12-23-reproduced/src/main.rs

@@ -1,7 +1,9 @@
 use std::env;
+use std::error::Error;
+use std::fs;
 use std::process;
 
-use minigrep::Config;
+use minigrep::{search, search_case_insensitive};
 
 fn main() {
     let args: Vec<String> = env::args().collect();
@@ -11,8 +13,51 @@ fn main() {
         process::exit(1);
     });
 
-    if let Err(e) = minigrep::run(config) {
+    if let Err(e) = run(config) {
         println!("Application error: {e}");
         process::exit(1);
     }
 }
+
+pub struct Config {
+    pub query: String,
+    pub file_path: String,
+    pub ignore_case: bool,
+}
+
+// ANCHOR: ch13
+impl Config {
+    fn build(args: &[String]) -> Result<Config, &'static str> {
+        if args.len() < 3 {
+            return Err("not enough arguments");
+        }
+
+        let query = args[1].clone();
+        let file_path = args[2].clone();
+
+        let ignore_case = env::var("IGNORE_CASE").is_ok();
+
+        Ok(Config {
+            query,
+            file_path,
+            ignore_case,
+        })
+    }
+}
+// ANCHOR_END: ch13
+
+fn run(config: Config) -> Result<(), Box<dyn Error>> {
+    let contents = fs::read_to_string(config.file_path)?;
+
+    let results = if config.ignore_case {
+        search_case_insensitive(&config.query, &contents)
+    } else {
+        search(&config.query, &contents)
+    };
+
+    for line in results {
+        println!("{line}");
+    }
+
+    Ok(())
+}

listings/ch13-functional-features/listing-12-24-reproduced/src/lib.rs

@@ -1,48 +1,3 @@
-use std::env;
-use std::error::Error;
-use std::fs;
-
-pub struct Config {
-    pub query: String,
-    pub file_path: String,
-    pub ignore_case: bool,
-}
-
-impl Config {
-    pub fn build(args: &[String]) -> Result<Config, &'static str> {
-        if args.len() < 3 {
-            return Err("not enough arguments");
-        }
-
-        let query = args[1].clone();
-        let file_path = args[2].clone();
-
-        let ignore_case = env::var("IGNORE_CASE").is_ok();
-
-        Ok(Config {
-            query,
-            file_path,
-            ignore_case,
-        })
-    }
-}
-
-pub fn run(config: Config) -> Result<(), Box<dyn Error>> {
-    let contents = fs::read_to_string(config.file_path)?;
-
-    let results = if config.ignore_case {
-        search_case_insensitive(&config.query, &contents)
-    } else {
-        search(&config.query, &contents)
-    };
-
-    for line in results {
-        println!("{line}");
-    }
-
-    Ok(())
-}
-
 pub fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> {
     let mut results = Vec::new();
 

listings/ch13-functional-features/listing-12-24-reproduced/src/main.rs

@@ -1,7 +1,9 @@
 use std::env;
+use std::error::Error;
+use std::fs;
 use std::process;
 
-use minigrep::Config;
+use minigrep::{search, search_case_insensitive};
 
 // ANCHOR: ch13
 fn main() {
@@ -15,10 +17,51 @@ fn main() {
     // --snip--
     // ANCHOR_END: ch13
 
-    if let Err(e) = minigrep::run(config) {
+    if let Err(e) = run(config) {
         eprintln!("Application error: {e}");
         process::exit(1);
     }
     // ANCHOR: ch13
 }
 // ANCHOR_END: ch13
+
+pub struct Config {
+    pub query: String,
+    pub file_path: String,
+    pub ignore_case: bool,
+}
+
+impl Config {
+    fn build(args: &[String]) -> Result<Config, &'static str> {
+        if args.len() < 3 {
+            return Err("not enough arguments");
+        }
+
+        let query = args[1].clone();
+        let file_path = args[2].clone();
+
+        let ignore_case = env::var("IGNORE_CASE").is_ok();
+
+        Ok(Config {
+            query,
+            file_path,
+            ignore_case,
+        })
+    }
+}
+
+fn run(config: Config) -> Result<(), Box<dyn Error>> {
+    let contents = fs::read_to_string(config.file_path)?;
+
+    let results = if config.ignore_case {
+        search_case_insensitive(&config.query, &contents)
+    } else {
+        search(&config.query, &contents)
+    };
+
+    for line in results {
+        println!("{line}");
+    }
+
+    Ok(())
+}

listings/ch13-functional-features/listing-13-18/src/lib.rs

@@ -1,48 +1,3 @@
-use std::env;
-use std::error::Error;
-use std::fs;
-
-pub struct Config {
-    pub query: String,
-    pub file_path: String,
-    pub ignore_case: bool,
-}
-
-impl Config {
-    pub fn build(args: &[String]) -> Result<Config, &'static str> {
-        if args.len() < 3 {
-            return Err("not enough arguments");
-        }
-
-        let query = args[1].clone();
-        let file_path = args[2].clone();
-
-        let ignore_case = env::var("IGNORE_CASE").is_ok();
-
-        Ok(Config {
-            query,
-            file_path,
-            ignore_case,
-        })
-    }
-}
-
-pub fn run(config: Config) -> Result<(), Box<dyn Error>> {
-    let contents = fs::read_to_string(config.file_path)?;
-
-    let results = if config.ignore_case {
-        search_case_insensitive(&config.query, &contents)
-    } else {
-        search(&config.query, &contents)
-    };
-
-    for line in results {
-        println!("{line}");
-    }
-
-    Ok(())
-}
-
 pub fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> {
     let mut results = Vec::new();
 

listings/ch13-functional-features/listing-13-18/src/main.rs

@@ -1,7 +1,9 @@
 use std::env;
+use std::error::Error;
+use std::fs;
 use std::process;
 
-use minigrep::Config;
+use minigrep::{search, search_case_insensitive};
 
 // ANCHOR: here
 fn main() {
@@ -13,10 +15,51 @@ fn main() {
     // --snip--
     // ANCHOR_END: here
 
-    if let Err(e) = minigrep::run(config) {
+    if let Err(e) = run(config) {
         eprintln!("Application error: {e}");
         process::exit(1);
     }
     // ANCHOR: here
 }
 // ANCHOR_END: here
+
+pub struct Config {
+    pub query: String,
+    pub file_path: String,
+    pub ignore_case: bool,
+}
+
+impl Config {
+    fn build(args: &[String]) -> Result<Config, &'static str> {
+        if args.len() < 3 {
+            return Err("not enough arguments");
+        }
+
+        let query = args[1].clone();
+        let file_path = args[2].clone();
+
+        let ignore_case = env::var("IGNORE_CASE").is_ok();
+
+        Ok(Config {
+            query,
+            file_path,
+            ignore_case,
+        })
+    }
+}
+
+fn run(config: Config) -> Result<(), Box<dyn Error>> {
+    let contents = fs::read_to_string(config.file_path)?;
+
+    let results = if config.ignore_case {
+        search_case_insensitive(&config.query, &contents)
+    } else {
+        search(&config.query, &contents)
+    };
+
+    for line in results {
+        println!("{line}");
+    }
+
+    Ok(())
+}