No person shall be discharged upon the hearing of a writ of habeas corpus in the following cases:

(1) When he is imprisoned under lawful process issued from a court of competent jurisdiction unless his case is one in which bail is allowed and proper bail is tendered;

(2) By reason of any irregularity in the warrant or commitment where the same substantially conforms to the requirements of law;

(3) For want of bond to prosecute;

(4) When the person is imprisoned under a bench warrant which is regular upon its face;

(5) By reason of any misnomer in the warrant or commitment when the court is satisfied that the person detained is the party charged with the offense;

(6) When the person is in custody for a contempt of court and the court has not exceeded its jurisdiction in the length of the imprisonment imposed; or

(7) In any other case in which it appears that the detention is authorized by law.