2001-06-11 Taku Kudo * configure.in: add mode --with(out)-zlib to enable|disable zlib by user. * mkarts.c: "-" is used as STDIN input. 2001-05-25 Taku Kudo * Bugs in EOS (end of string) handling: In previous code, one cannot distingwish string's terminal and NULL charactor, since NULL charctor is used as a maker for any string's terminal. to cope with this problem, I used a special charctor (insted of NULL) to identify the string's terminal. This modification will cause a incompatibility of index structure. * compress double-array using zlib: added an experimental code allows users to (de)compress the doulbe-array using zlib. * Modifiing the return value of open and save: Taking the UNIX-style functions into account, the return value of function, open and save are modified. 0 implies 'successfull' -1 implies 'errro'. * new method: get_unit_size(), which returns the size of one Unit of Double-Array, is added to the class. 2001-05-21 Taku Kudo * Initial Release: