gtk_ui/
util.rs

1use std::ops::Range;
2use std::fs;
3
4const LIB_PATH: &str =  "/usr/share/gtk-ui";
5
6pub fn check_error(result: Result<(), (String, Range<usize>)>, file: &String, file_content: &String) {
7    if let Err(err) = result {
8        if err.1.start > err.1.end {
9            println!("\x1b[1;31mError:\x1b[0m {} (in {})", err.0, file);
10        } else {
11            match get_position_from_char_index(err.1.start, file_content) {
12                Ok((line, char)) => {
13                    println!("\x1b[1;31mError:\x1b[0m {} (line {}, char {}, in {})", err.0, line, char, file);
14                },
15                Err(message) => println!("\x1b[1;31mError:\x1b[0m {}", message)
16            }
17        }
18        std::process::exit(1);
19    }
20}
21
22pub fn get_position_from_char_index(char_index: usize, file_content: &String) -> Result<(usize, usize), &str> {
23    // Quick sanity check
24    if char_index >= file_content.len() {
25        Err("character index bigger than file content (something horrible must have gone wrong)")
26    } else {
27        let mut line_count = 1;
28        let mut char_count = 1;
29        for i in 0..char_index {
30            char_count += 1;
31            if file_content.chars().nth(i).unwrap() == '\n' {
32                line_count += 1;
33                char_count = 1;
34            }
35        }
36        Ok((line_count, char_count))
37    }
38}
39
40pub fn get_include_path(path: &String) -> Option<String> {
41    let lib_file_path = format!("{LIB_PATH}/{path}.gui");
42    if fs::metadata(&lib_file_path).is_ok() {
43        Some(lib_file_path)
44    } else if fs::metadata(&path).is_ok() {
45        Some(path.clone())
46    } else {
47        None
48    }
49}
gtk_ui/util.rs

gtk_ui/
util.rs
