Regular Expression that searches for CURP standard in Mexico. This is version 1 - 18 positions, with simple validation:``

[A-Z][A-Z][A-Z][A-Z][[0-9][[0-9][[0-9][[0-9][[0-9][[0-9][H|M][A-Z][A-Z][A-Z][A-Z][A-Z][0-9][0-9]