Function container_open_name

atomic-canonical/src/memory.rs:201–212

If `line` opens a container directive (`:::name` optionally with `{...}`), return the directive name. A bare `:::` (a close) yields `None`.

(line: &str)

/// If `line` opens a container directive (`:::name` optionally with `{...}`),
/// return the directive name. A bare `:::` (a close) yields `None`.
fn container_open_name(line: &str) -> Option<&str> {
    let rest = line.strip_prefix(":::")?;
    let end = rest
        .find(|c: char| c == '{' || c.is_whitespace())
        .unwrap_or(rest.len());
    let name = &rest[..end];
    if name.is_empty() {
        None
    } else {
        Some(name)
    }
}

/// Wrap a local id into `urn:atomic:memory:<local>` unless already a urn.
fn as_memory_urn(local: &str) -> String {