Function wildcard_label_matches

crates/openshell-prover/src/credentials.rs:211–247

(pattern: &str, label: &str)

}

fn wildcard_label_matches(pattern: &str, label: &str) -> bool {
    if pattern == "*" {
        return !label.is_empty();
    }
    if label.is_empty() || !pattern.contains('*') {
        return false;
    }

    let parts: Vec<&str> = pattern.split('*').collect();
    let mut remaining = label;

    if let Some(prefix) = parts.first().copied().filter(|part| !part.is_empty()) {
        let Some(stripped) = remaining.strip_prefix(prefix) else {
            return false;
        };
        remaining = stripped;
    }

    if parts.len() > 2 {
        for part in parts[1..parts.len() - 1]
            .iter()
            .copied()
            .filter(|part| !part.is_empty())
        {
            let Some(offset) = remaining.find(part) else {
                return false;
            };
            remaining = &remaining[offset + part.len()..];
        }
    }

    parts
        .last()
        .copied()
        .filter(|suffix| !suffix.is_empty())
        .is_none_or(|suffix| remaining.ends_with(suffix))
}

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