Function parse_dep_spec 

pub fn parse_dep_spec(spec: &str) -> DependencySpec

What: Split a dependency specification into name and version requirement.

Inputs:

• spec: Dependency string from pacman (e.g., “python>=3.12”, “glibc”).

Output:

• Returns DependencySpec with name and version_req fields.

Details:

• Searches for version operators in precedence order: <=, >=, =, <, >
• Returns empty version_req when no operator is present.
• Trims whitespace from both name and version.

Examples

use arch_toolkit::deps::parse_dep_spec;

let spec = parse_dep_spec("python>=3.12");
assert_eq!(spec.name, "python");
assert_eq!(spec.version_req, ">=3.12");

let spec = parse_dep_spec("glibc");
assert_eq!(spec.name, "glibc");
assert!(spec.version_req.is_empty());