Swift wrapper for glob(3)

matchingFilesForPattern.swift

import Foundation

/// Given a wildcard pattern, return matching paths.
///
/// - parameter pattern: pathname pattern to be expanded. See docs for `glob(3)`.
/// - returns: array of pathnames that match the pattern
func matchingFilesForPattern(pattern: String) -> [String] {
    var result = Array<String>()
    
    var g = glob_t()
    glob(pattern, 0, nil, &g)
    defer { globfree(&g) }
        
    for i in 0..<g.gl_pathc {
        let sz = UnsafeMutablePointer<CChar>(g.gl_pathv[i])
        if let s = String.fromCString(sz) {
            result.append(s)
        }
    }
    
    return result
}