Escape Sequences for Character and String Literals

The character and string escape sequences allow for the representation of some nongraphic characters as well as the single quote, double quote, and backslash characters in character literals and string literals:

Escape[33]:

\\([btnfr\"'\\]|O[34]|O[34]O[34]|T[35]O[34]O[34])

This macro is invoked in definitions 30 and 32.

O[34]:

[0-7]

This macro is invoked in definition 33.

T[35]:

[0-3]

This macro is invoked in definition 33.