Words

All alphanumeric characters ("a".."z,"A".."Z", "0".."9") are used to create the full-text index. Separation characters are blank characters and the characters described in the sentence recognition section below. Control characters, such as line feed (also known as a new line character) and blank characters, are interpreted as follows: Control characters (less than 0x20) in the middle of the line are regarded as blank characters. Blank characters and control characters before and after a line feed (0x0A) are ignored. Line feed before and after a 1-byte character are regarded as blank characters and 2-byte characters for the same character are always regarded as the same characters. Capital letters and small letters for the same character, for example, "A" and "a", are regarded as the same characters if nothing is specified during search, or as different characters if exact matching is required during search.