This variable allows you to redefine the line drawing characters on DOS systems. The value of the DOS_BOX_CHARS configuration variable is a list of characters that draw the line segments. It should be a list of 13 space delimited characters that correspond, in order, to the line segments as listed below. To redefine the DOS line drawing characters, specify the characters you want in the following order:
1. horizontal line
2. vertical line
3. upper left corner
4. upper right corner
5. lower left corner
6. lower right corner
Four three-way intersections -
7. missing bottom line
8. missing left line
9. missing top line
10. missing right line
and -
11. the four-way intersection
12. upper-half block
13. lower-half block
These line drawing characters may also be specified by decimal value. Characters which are not available on a particular machine should be specified with the decimal value "0".
The default value for DOS_BOX_CHARS depends on the CODE_SYSTEM configuration variable. If CODE_SYSTEM is not set, or is set to "0" (or ASCII or EBCDIC), then the default is:
DOS_BOX_CHARS 196 179 218 191 192 217 193 195 194 180 197 223 220
If CODE_SYSTEM is set to a non-zero value, which is the case in the ACUCOBOL-GT JPN version, then the default is:
DOS_BOX_CHARS 6 5 1 2 3 4 21 25 22 23 16 0 0