Single-byte characters
Single-byte characters are represented as a series of lowercase letters.
The format for representing one single-byte character abstractly
is a. Here a stands for any single-byte
character, not for the letter a
itself.
The format for representing a string of single-byte characters
is a...z. Here a stands for the
first character and z stands for the last character
in the string. For example, if the string Ludwig consists
of six single-byte characters, the following format represents this
six-character string abstractly:
abcdef
The letter s
does not show in examples that represent strings
of single-byte characters. The letter s
is reserved as a symbol
to represent a single-byte white space character.