FOO=foo
BAR=bar
FOOBAR=\$FOO${FOO}$BAR
ESCAPED_DOLLAR_SIGN="\$1000"
ESCAPED_QUOTE='\''

BOOL_TRUE=true
BOOL_1=1
BOOL_FALSE=false
BOOL_0=0

INT_42=42
INT_42_NEGATIVE=-42

DOUBLE_13_37=13.37
DOUBLE_13_37_NEGATIVE=-13.37
DOUBLE_1e3=1.e3
DOUBLE_POINT_3=.3

BASIC=basic

BASIC=basic1

# previous line intentionally left blank
AFTER_LINE=after_line
EMPTY=
SINGLE_QUOTES='single_quotes'
SINGLE_QUOTES_SPACED='    single quotes    '
DOUBLE_QUOTES="double_quotes"
DOUBLE_QUOTES_SPACED="    double quotes    "
 EXPAND_NEWLINES="expand\nnew\nlines"
 DONT_EXPAND_UNQUOTED=dontexpand\nnewlines
 DONT_EXPAND_SQUOTED='dontexpand\nnewlines'
# COMMENTS=work
EQUAL_SIGNS=equals==
RETAIN_INNER_QUOTES={"foo": "bar"}
RETAIN_LEADING_DQUOTE="retained
RETAIN_LEADING_SQUOTE='retained
RETAIN_TRAILING_DQUOTE=retained"
RETAIN_TRAILING_SQUOTE=retained'
RETAIN_INNER_QUOTES_AS_STRING='{"foo": "bar"}'
TRIM_SPACE_FROM_UNQUOTED=    some spaced out string
USERNAME=therealnerdybeast@example.tld
    SPACED_KEY = parsed