For terminals that have additive attributes the following are used:
| Entry | Mnemonic |
|---|---|
| Enable alternate character set | enacs |
| Alternate character set characters | acsc |
| Enter alternate character set | smacs |
| End alternate character set | rmacs |
For terminals that do not have additive attributes, the following is needed:
| Entry | Mnemonic |
|---|---|
| Set attributes | sgr |
If you do not specify the appropriate alternate character set characters for your terminal, or your terminal does not provide a complete set, normal ASCII characters are substituted for the missing line drawing characters.