1// becomes TEXT
 2#define TEXT
 3#define TEXT
 4
 5// becomes `at`TEXT`at`
 6#define @TEXT@
 7#define @TEXT@
 8
 9// becomes TRAP
10#define TRAP
11
12// becomes `dollar sign`{STRING}
13#define ${STRING}
14#define ${STRING}
15
16// becomes `dollar sign`{STRING}
17#define ${STRING}
18#define ${STRING}
19
20// becomes `dollar sign`{TEXT}
21#define ${TEXT}
22#define ${TEXT}
23
24// becomes `at`STRING`at`
25#define @STRING@
26#define @STRING@
27
28#define \@STRING_VAR\@
29#define \${STRING}
30#define $\{STRING_VAR}