parallel 0.6.4

Command-line CPU load balancer for executing jobs in parallel
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37

pub fn basic(command: &mut String) {
    let mut output = String::with_capacity(command.len() << 1);
    for character in command.chars() {
        match character {
            '\\' => {
                output.push('\\');
                output.push(character);
            },
            _ => output.push(character)
        }
    }
    *command = output
}

pub fn shell(command: &mut String) {
    let mut output = String::with_capacity(command.len() << 1);
    {
        let mut char_iter = command.chars();

        // Do not escape the command
        while let Some(character) = char_iter.next() {
            output.push(character);
            if character == ' ' { break }
        }

        // Escape all following arguments
        for character in char_iter {
            match character {
                '$' | ' ' | '\\' | '>' | '<' | '^' | '&' | '#' | '!' | '*' | '\'' | '\"' | '`' | '~' | '{' | '}' | '[' |
                ']' | '(' | ')' | ';' | '|' | '?' => output.push('\\'),
                _ => ()
            }
        }
    }

    *command = output
}