VARIABLES:
N={1, 2}
OUTPUT_HEADER:
Dollar sign followed by a curly bracket, something and a curly bracket ('$' + '{' + abc + '}'): $${0:[0#{]}abc}
Line ending in ':' colon (Add a trailing space): 

OUTPUT:
Value of N: ${N}   Conditional pipe ('|') (Fixed length = space): ${N:[1#|2#'|']}  Conditional pipe ('|') (Not fixed length): ${N:\[1#|2#'|']}  Conditional end curly bracket ('}') (Fixed length = space): ${N:\[1# |2#\u007D]}  Conditional end curly bracket ('}') (Not fixed length): ${N:\[1#|2#\u007D]}   |
OUTPUT_FOOTER:

Table of conditional characters: 
Name                    Character    Escape sequence
Hash                    #            \u0023
Colon                   :            \u003A
Pipe                    |            \u007C
Start square bracket    [            \u005B
End square bracket      ]            \u005D
Start curly bracket     {            \u007B
End curly bracket       }            \u007D
Dollar sign             $            \u0024