package sqan

import "strings"

func ParsePath(rootDir, absPath string) (relPath, relDir, filename, extension string) {
	if absPath[0:len(rootDir)] != rootDir {
		return
	}

	relPath = absPath[len(rootDir):]

	if i := strings.LastIndexByte(relPath, '/'); i > -1 {
		if i > 0 {
			relDir = relPath[0:i]
		} else {
			relDir = "/"
		}

		filename = relPath[i+1:]
	}

	if i := strings.LastIndexByte(filename, '.'); i > -1 {
		extension = strings.ToLower(filename[i+1:])
	}

	return
}