Numerical control device

A numerical control device for machine tool comprising:

• a control unit;
• and
• a storage unit, wherein
• the storage unit includes
• a key-in buffer storage unit storing a key-input character, and
• a function abbreviation storage unit storing a function abbreviation and a correspondence relationship between the function abbreviation and a program code, and
• the control unit includes
• an input processing unit storing the key-input character in the key-in buffer storage unit,
• a function abbreviation candidate display unit retrieving a function abbreviation candidate from a number of characters matched between a character stored in the key-in buffer storage unit and the function abbreviation stored in the function abbreviation storage unit,
• a function abbreviation character string complementing unit complementing a character before key-input of the function abbreviation candidate when the key-input character is a part of the function abbreviation candidate and a number of the function abbreviation candidates is one and returning the complemented function abbreviation candidate to the key-in buffer storage unit, and
• a function abbreviation-code conversion unit converting a character string indicating the function abbreviation candidate returned to the key-in buffer storage unit after the complement into a program code based on the correspondence relationship.