Function normalize_loose_range 

pub fn normalize_loose_range(s: &str) -> String

Normalize a version requirement for loose parsing by stripping v/V (optionally followed by ., :, -, or _) before version numbers at comparator boundaries.

Examples

• >=v1.0.0 → >=1.0.0
• ^v1.2.3 → ^1.2.3
• v1.2.3 → 1.2.3
• >=v:1.0.0, <v.2.0.0 → >=1.0.0, <2.0.0
• >=v-1.0.0, <v_2.0.0 → >=1.0.0, <2.0.0