momen antara eksklusivitas

// proposal 1
m.isBetween(a, b, "()"); // both excluded
m.isBetween(a, b, "[)"); // start included, end excluded

// proposal 2
m.isBetween(a, b, "+"); // both included
m.isBetween(a, b, "+-"); // start included, end excluded
vilmacio