90 lines
3.3 KiB
Rust
90 lines
3.3 KiB
Rust
use std::time::SystemTime;
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/// Class for common functions used across other class/functions
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pub struct Common();
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impl Common {
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pub fn print_time(start_time: SystemTime, end_time: SystemTime, function_name: String) {
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if false {
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return;
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}
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println!("Execution of function \"{}\" took {:?}", function_name, end_time.duration_since(start_time).expect("Time cannot go reverse."));
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}
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/// Function to check if directory match expression
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pub fn regex_check(expression: &str, directory: &str) -> bool {
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if !expression.contains('*') {
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println!("Expression should have *");
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return false;
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}
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let temp_splits: Vec<&str> = expression.split('*').collect();
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let mut splits: Vec<&str> = Vec::new();
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for i in temp_splits {
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if i != "" {
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splits.push(i);
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}
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}
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if splits.is_empty() {
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return false;
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}
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// Early checking if directory contains all parts needed by expression
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for split in &splits {
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if !directory.contains(split) {
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return false;
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}
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}
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let mut position_of_splits: Vec<usize> = Vec::new();
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// `git*` shouldn't be true for `/gitsfafasfs`
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if !expression.starts_with('*') && directory.find(&splits[0]).unwrap() > 0 {
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return false;
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}
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// `*home` shouldn't be true for `/homeowner`
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if !expression.ends_with('*') && !directory.ends_with(splits.last().unwrap()) {
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// && !directory.ends_with(&(splits.last().unwrap().to_string() + "/")){
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return false;
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}
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// At the end we check if parts between * are correctly positioned
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position_of_splits.push(directory.find(&splits[0]).unwrap());
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let mut current_index: usize;
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let mut found_index: usize;
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for i in splits[1..].iter().enumerate() {
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current_index = *position_of_splits.get(i.0).unwrap() + i.1.len();
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found_index = match directory[current_index..].find(i.1) {
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Some(t) => t,
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None => return false,
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};
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position_of_splits.push(found_index + current_index);
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}
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true
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}
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}
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#[cfg(test)]
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mod test {
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use crate::common::Common;
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#[test]
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fn test_regex() {
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assert!(Common::regex_check("*home*", "/home/rafal"));
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assert!(Common::regex_check("*home", "/home"));
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assert!(Common::regex_check("*home/", "/home/"));
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assert!(Common::regex_check("*home/*", "/home/"));
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assert!(Common::regex_check("*.git*", "/home/.git"));
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assert!(Common::regex_check("*/home/rafal*rafal*rafal*rafal*", "/home/rafal/rafalrafalrafal"));
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assert!(!Common::regex_check("*home", "/home/"));
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assert!(!Common::regex_check("*home", "/homefasfasfasfasf/"));
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assert!(!Common::regex_check("*home", "/homefasfasfasfasf"));
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assert!(!Common::regex_check("rafal*afal*fal", "rafal"));
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assert!(!Common::regex_check("AAAAAAAA****", "/AAAAAAAAAAAAAAAAA"));
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assert!(!Common::regex_check("*.git/*", "/home/.git"));
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assert!(!Common::regex_check("*home/*koc", "/koc/home/"));
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assert!(!Common::regex_check("*home/", "/home"));
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assert!(!Common::regex_check("*TTT", "/GGG"));
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assert!(!Common::regex_check("AAA", "AAA"));
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}
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}
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