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pub fn to_snake_case(s: &str) -> String {
let mut snake_case = String::new();
let chars: Vec<char> = s.chars().collect();
for (i, &ch) in chars.iter().enumerate() {
if ch.is_uppercase() && i != 0 && chars[i - 1].is_lowercase() {
snake_case.push('_');
}
if ch.is_alphabetic() {
snake_case.push(ch.to_lowercase().next().unwrap());
} else {
snake_case.push(ch);
}
}
snake_case = snake_case
.trim_matches(|c: char| c.is_whitespace() && c != '_')
.to_string();
snake_case
}
pub fn safe_encode(key: &str) -> String {
let key = to_snake_case(key);
let mut result = String::with_capacity(key.len() * 2);
for ch in key.chars() {
if ch == ':' || ch == '\\' {
result.push('\\');
}
result.push(ch);
}
result
}