3. Character string and text string data

Unquoted character strings begin with an alphabetic character, followed by an arbitrary number of alphanumeric characters and/or the dot (.) and underscore (_) characters. Such unquoted character strings are used for both attribute names and attribute values. Examples:

ischeme GAUSS3X3
eltype B2.S.RS
analysis dynamic_nonlinear

Text strings (or str data) may contain any printable characters and must be delimited by single quotes (') or double quotes ("). Example:

"A text string with 8 words and one number"

Special characters must be preceded by the backslash (\) character. Example:

"A text string with \"quotes\" and a newline character\n"