All things connected to string handling. 
| Name | Description | 
| BinStr | Construct binary representation of integer | 
| Chr | Convert ASCII code to character | 
| Concat | Concatenate two strings | 
| Copy | Copy part of a string | 
| Delete | Delete part of a string | 
| HexStr | Construct hexadecimal representation of integer | 
| Insert | Insert one string in another | 
| Length | Return length of string | 
| Lowercase | Convert string to all-lowercase | 
| OctStr | Construct octal representation of integer | 
| Pos | Calculate position of one string in another | 
| SetLength | Set length of a string | 
| SetString | Set contents and length of a string | 
| Str | Convert number to string representation | 
| StringOfChar | Create string consisting of a number of characters | 
| Upcase | Convert string to all-uppercase | 
| Val | Convert string to number |