fn0_deploy/
name.rs

1pub const MAX_PROJECT_NAME_LEN: usize = 100;
2
3#[derive(Debug, Clone, PartialEq, Eq)]
4pub enum NameError {
5    Empty,
6    TooLong { len: usize },
7    InvalidChar { ch: char },
8}
9
10impl std::fmt::Display for NameError {
11    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
12        match self {
13            NameError::Empty => write!(f, "name cannot be empty"),
14            NameError::TooLong { len } => {
15                write!(f, "name too long: {len} chars (max {MAX_PROJECT_NAME_LEN})")
16            }
17            NameError::InvalidChar { ch } => write!(
18                f,
19                "name contains invalid character {ch:?}; allowed: letters, digits, '.', '_', '-'"
20            ),
21        }
22    }
23}
24
25impl std::error::Error for NameError {}
26
27pub fn validate_project_name(s: &str) -> std::result::Result<(), NameError> {
28    let len = s.chars().count();
29    if len == 0 {
30        return Err(NameError::Empty);
31    }
32    if len > MAX_PROJECT_NAME_LEN {
33        return Err(NameError::TooLong { len });
34    }
35    if let Some(ch) = s
36        .chars()
37        .find(|c| !c.is_ascii_alphanumeric() && *c != '.' && *c != '_' && *c != '-')
38    {
39        return Err(NameError::InvalidChar { ch });
40    }
41    Ok(())
42}
43
44pub fn is_valid_project_name(s: &str) -> bool {
45    validate_project_name(s).is_ok()
46}
fn0_deploy/name.rs

fn0_deploy/
name.rs
