Minor changes

README.md

@@ -18,7 +18,7 @@ This repo is for my personal use with tips, tools, ready to use examples/explana
 > . Use [unit_test](src/unit_tested_file.rs) (also use it in CI: [unit_tests.yml](.github/workflows/unit_tests.yml))   
 > . Use `sccache` for faster builds (see setup and how to use in section "docs" below)  
 > . Use [.cargo/config.toml](.cargo/config.toml) (see `faster_builds_with_linker_config` in section "docs" below)  
-> . Use debugger (see vscode debugger setup, examples in section "docs" below) or use `RUST_BACKTRACE=1 cargo run ...`  
+> . Use debugger (see vscode debugger setup, examples in section "docs" below) or use `RUST_BACKTRACE=1 cargo run . . .`  
 > . Use `cargo tree` - displays the dependency graph  
 
 #### [best-practice-tips/](best-practices)  
@@ -90,4 +90,4 @@ This repo is for my personal use with tips, tools, ready to use examples/explana
 - Debugging, `.vscode/launch.json` template
 - `.cargo/config.toml` sample, including fastest linkers, very&more useful for big codebases
 - Read from file, find lines that contains a string
-- And more... see -> [src/*.rs](src/)
+- And more. . . see -> [src/*.rs](src/)

best-practices/readme.md

@@ -184,13 +184,13 @@ For this situation, an if let expression is one line shorter and, more important
                 return Err(format!("Failed to open password file: {:?}", e))
             }
         };
-        // ...
+        // . . .
     }
 
     pub fn find_user(username: &str) -> Result<UserId, String> {
         let f = std::fs::File::open("/etc/passwd")
             .map_err(|e| format!("Failed to open password file: {:?}", e))?;
-        // ...
+        // . . .
     }
     // Better still, even map_err may not be necessary – if the outer error type 
     // can be created from the inner error type via an implementation of the 

docs/how_to_debug_rust.md

@@ -45,7 +45,7 @@ E.g. two debug configs for `tower` package with and without using `cargo`:
 ```
 
 #### Step-3
-`File -> Preferences -> Settings` type `Allow setting breakpoints...`
+`File -> Preferences -> Settings` type `Allow setting breakpoints. . .`
 
 Tick this checkbox:  
 `<> Allow setting breakpoints in any file`

src/async_.rs

@@ -68,9 +68,9 @@ async fn foo() -> u8 { 5 }
 
 
 // 3. async await basic example
-async fn learn_song() { for i in 1..=3 { println!("--- learning song... {}", i); } }
+async fn learn_song() { for i in 1..=3 { println!("--- learning song. . . {}", i); } }
 
-async fn sing() { for i in 1..=3 { println!("--- singing... {}", i); } }
+async fn sing() { for i in 1..=3 { println!("--- singing. . . {}", i); } }
 
 // 3.a. await - wait/block one future
 async fn learn_and_sing() {
@@ -83,7 +83,7 @@ async fn learn_and_sing() {
 }
 
 async fn dance() {
-    for i in 1..=3 { println!("--- dancing... {}", i); }
+    for i in 1..=3 { println!("--- dancing. . . {}", i); }
 }
 
 // 3.b. join - wait/block multiple futures concurrently
@@ -112,8 +112,8 @@ async fn async_main() {
 // 3.c. try_join - use it for futures which return Result
 use futures::try_join;
 
-async fn get_book() -> Result<i32, String> { /* ... */ Ok(42) }
-async fn get_music() -> Result<i32, String> { /* ... */ Ok(43) }
+async fn get_book() -> Result<i32, String> { /* . . . */ Ok(42) }
+async fn get_music() -> Result<i32, String> { /* . . . */ Ok(43) }
 
 async fn get_book_and_music() -> Result<(i32, i32), String> {
     let book_fut = get_book();

src/cacher.rs

@@ -34,7 +34,7 @@ impl<Function, Key, Val> Cacher<Function, Key, Val>
             println!("Cacher: cashed result for {}: {}", arg, val);
             val
         } else {
-            println!("Cacher: calculating for {}...", arg);
+            println!("Cacher: calculating for {} . . .", arg);
             let val = (self.function)(arg);
             self.results.insert(arg, val);
             val

src/env.vars.rs

@@ -2,7 +2,7 @@
 // Run time env. vars use
 // .cargo/config.toml
 // [env]
-// ...
+// . . .
 // see main.rs for usage
 
 // Todo

src/env_logger.rs

@@ -11,14 +11,14 @@ fn ex1() {
     info!("this is info {}", "message");
     debug!("this is a debug {}", "message");
 }
-    // $ RUST_LOG=error cargo r ...
+    // $ RUST_LOG=error cargo r
     // [2023-11-09T02:12:24Z ERROR main] this is printed by default
 
-    // $ RUST_LOG=info cargo r ...
+    // $ RUST_LOG=info cargo r
     // [2023-11-09T02:12:24Z ERROR main] this is printed by default
     // [2023-11-09T02:12:24Z INFO main] this is info
 
-    // $ RUST_LOG=debug cargo r ...
+    // $ RUST_LOG=debug cargo r
     // [2023-11-09T02:12:24Z ERROR main] this is printed by default
     // [2023-11-09T02:12:24Z INFO main] this is info
     // [2023-11-09T02:12:24Z DEBUG main] this is a debug message

src/error_handling.rs

@@ -106,7 +106,7 @@ fn ex_b_1() {
         // panics with `Error xyz happened`: emergency failure`
 }
 
-// Using match - same as `expect("...")` in ex_1:
+// Using match - same as `expect(". . .")` in ex_1:
 #[test]
 #[should_panic] // Comment to see the panic
 fn ex_b_2() {

src/int_overflow.rs

@@ -4,24 +4,24 @@
 #[should_panic] // comment this line to see the panic
 #[test] fn ex_1_panics_w_int_overflow() {
     let mut i: u16 = 0;
-    print!("{}..", i);
+    print!("{}-", i);
     loop {
         i += 1000;
-        print!("{}..", i);
+        print!("{}-", i);
         if i % 10000 == 0 {
             print!{"\n"}
         }
     }
     // info: let sixty_five_thousand_535: u16 = 0b1111_1111_1111_1111;
 }
 // cout:
-// 0..1000..2000..3000..4000..5000..6000..7000..8000..9000..10000..
-// 11000..12000..13000..14000..15000..16000..17000..18000..19000..20000..
-// 21000..22000..23000..24000..25000..26000..27000..28000..29000..30000..
-// 31000..32000..33000..34000..35000..36000..37000..38000..39000..40000..
-// 41000..42000..43000..44000..45000..46000..47000..48000..49000..50000..
-// 51000..52000..53000..54000..55000..56000..57000..58000..59000..60000..
-// 61000..62000..63000..64000..65000..
+// 0-1000-2000-3000-4000-5000-6000-7000-8000-9000-10000-
+// 11000-12000-13000-14000-15000-16000-17000-18000-19000-20000-
+// 21000-22000-23000-24000-25000-26000-27000-28000-29000-30000-
+// 31000-32000-33000-34000-35000-36000-37000-38000-39000-40000-
+// 41000-42000-43000-44000-45000-46000-47000-48000-49000-50000-
+// 51000-52000-53000-54000-55000-56000-57000-58000-59000-60000-
+// 61000-62000-63000-64000-65000-
 // thread 'int_overflow::ex_1_panics_w_overflow' panicked at 'attempt to 
 // add with overflow', src/int_overflow.rs:6:9
 

src/iterators_aka_algorithms.rs

@@ -7,7 +7,7 @@
 pub trait Iterator {
     type Item; // The type of the elements being iterated over aka type placeholder
     fn next(&mut self) -> Option<Self::Item>;
-    // ...
+    // . . .
 }
 
 // =======

src/let_else.rs

@@ -27,7 +27,7 @@ fn process_str(s: &str) -> u64 {
     }
     let count = res.unwrap();
 
-    // ... do_something_with(count)
+    // . . . do_something_with(count)
     count + 1
 }
 

src/match_.rs

@@ -52,7 +52,7 @@
 }
 
 
-/// 3. Matching Ranges of Values with the ... Syntax
+/// 3. Matching Ranges of Values with the . . . Syntax
 #[test] fn ex_3() {
   let x = 5;
   match x {

src/string_concat.rs

@@ -1,7 +1,7 @@
 
 // 0. String from String and &strs
 // Note:
-//    String = String + &str + &str etc..
+//    String = String + &str + &str etc.
 //                ^
 //     first arg must be String
 #[test] fn ex_0_string_from_strings_and_strs() {

src/traits.rs

@@ -57,7 +57,7 @@ impl<T> Screen_Static_Dispatch<T> where T: Draw {
 // -------------------------------------------------------------------
 
 
-// 1.a. DYNAMIC dispatch ...continues...
+// 1.a. DYNAMIC dispatch . . .continues. . .
 pub struct Button {
   pub width: u32,
   pub height: u32,

src/traits_associated_type_vs_generics.rs

@@ -16,7 +16,7 @@ pub trait Iterator {
     // concrete type
 
     fn next(&mut self) -> Option<Self::Item>;
-    // ...
+    // . . .
 }
 
 // Creating Our Own Iterator
@@ -40,7 +40,7 @@ impl Iterator for Counter {
 // // Creating Our Own Iterator - 2
 // impl Iterator for Counter {
 //     type Item = String;
-//     // ...
+//     // . . .
 // }
 
 #[test] fn iter_our_iter_next() {

src/type_.rs

@@ -6,7 +6,7 @@ pub trait Iterator {
     type Item;  // The type of the elements being iterated over
 
     fn next(&mut self) -> Option<Self::Item>;
-    // ...
+    // . . .
 }
 
 // Simple usage of iterators