keyword_in_file/
lib.rs

1//! # WEBSITE READING
2//! 
3//! This code peice is used to put agruements into your terminal when running cargo, to   1: Search for the file name (txt) ,   2: Search for a specific word in the file.txt
4//! 
5//! HOW IT'S USED:     Cargo run file_name  Word_to_seach_for  
6//! To turn off search caps sensitive you can run:    $env:CAPS_SENS = "true/false"    
7//! 
8/// # Examples
9/// 
10/// ```rust
11/// 
12/// //WITHOUT ANY ARGUEMENTS
13/// pub fn reading_file() {
14///     use std::fs::File;
15///     let mut message = String::new();
16///     let file = File::open("Name.txt");
17/// 
18///     match file {
19///         Ok(mut file) => {
20///             use std::io::Read;
21///             let file_text = file.read_to_string(&mut message);
22/// 
23///             match file_text {
24///                 Ok(_) => println!("FILE TEXT: {}", message),
25///                 Err(error) => println!("HAD THE ERROR WHILE READING {}", error),
26///             }
27///         },
28///         Err(error) => println!("THE ERROR FOUND IS: {:?}", error),
29///     }
30/// }
31/// pub fn main() {
32///     reading_file();
33/// }
34/// ```
35
36pub fn reading_file() {
37
38    //getting the arguements for the file and the search
39
40    use std::env;
41
42    let caps_toggle= env::var("CAPS_SENS").unwrap_or_default() == "true";
43
44    let args: Vec<String> = env::args().collect();
45
46    if args.len() < 2 {
47
48        use std::process;
49
50        println!("DIDNT USE AGRUEMENTS, PLEASE RUN CARGO WITH ARGUEMENTS e.g cargo run file.txt search_word");
51
52        process::exit(1);
53
54    }
55
56    let file = &args[1];
57    let search = &args[2];
58
59
60
61    //code to read and search for the file
62
63    use std::fs::File;
64    use std::io::Read;
65
66
67    let file = File::open(file);
68
69    match file {
70
71        Ok(mut file) => {
72
73            let mut message = String::new();
74
75            let reading = file.read_to_string(&mut message);
76
77            match reading {
78                Ok(_) => {
79
80                    if caps_toggle {
81
82                        println!("CAPS_SENS");
83
84                        for line in message.lines() {
85                           
86                            if line.to_string().to_lowercase().contains(&search.to_lowercase()) {
87                                println!("{}", line);
88                            } else {
89                                println!("couldnt find {}", search);
90                            }
91                        }
92
93                    } else  {
94
95                        println!("NONE CAPS_SENS");
96
97                        for line in message.lines() {
98
99                            if line.to_string().contains(search) {
100                                println!("{}", line);
101                            } 
102                        }
103                
104                    }
105                
106
107                },
108
109                Err(error) => println!("ERROR WHILE READING {:?}", error)
110            }
111
112        },
113
114        Err(error) => println!("{:?}", error)
115    }
116}
117
118pub fn main() {
119
120    reading_file();
121
122}
keyword_in_file/lib.rs

keyword_in_file/
lib.rs
