| 摘要 |
PROBLEM TO BE SOLVED: To enhance accuracy of information management of a character string of a file name (extension). SOLUTION: As for each letter of alphabet included in a character string of a file name to be stored in a file name field, information indicating that each letter of the alphabet is a capital letter or a small letter is stored in a reservation field. Therefore, it is possible to precisely distinguish the capital letter from the small letter of the alphabets to enhance the accuracy of the information management concerning the extension by mutually checking character string codes of the file name, stored in the file name field of a directory entry to be retrieved, with flags A distinguishing the capital letter from the small letter and being stored in the reservation field. COPYRIGHT: (C)2006,JPO&NCIPI
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