Control Characters
Various control characters are used when creating a search string on the Find dialog. You can enter any character from a character set, with the following exceptions: \$&^?. These characters are unavailable. The ^ (caret) is used to enter the control characters Ctrl-A through Ctrl-Z and Ctrl-@,[,\,],- when using the ASCII character set. For example, ^A specifies Ctrl-A ($01) and ^@ specifies ASCII NUL ($00).
If you need to specify the ^ as a character, use \^.
Note that neither the ^ character nor control characters exist in Baudot, so attempts to search for the ^ character results in an error message. The ^ character exists in EBCDIC, but control characters do not. A search for ^A in EBCDIC matches any occurrence of ^A ($5F$C1). You do not need to use the escape character to search for a ^ character in EBCDIC.
