\x3c and \x5c in Variables

Help advises us that if we want to use angle brackets ("<" or ">", although only "<" seems to matter) in a Variable definition, we should prefix (escape) them with a backslash ("\").

Help fails to advise us that the same is true for backslash itself, and further, that typing either "<" or "\" via their \x## hex codes can trip you up.

I wanted to create a var for the symbolic "therefore", the 3-dot triangle.

With a Character Format of Symbol defined,

I entered the definition:

<Symbol>\x5c<Default ¶ Font>

but when I hit [ Insert ], what I got was "<Default ¶ Font>" in Symbol font.

Frame had silently changed the "\x5c" to "\",

definition now: <Symbol>\<Default ¶ Font>

treated the resulting character as an escape of nothing in particular,

and then ignored it altogether.

I had to go back and revise the var def to:

<Symbol>\\<Default ¶ Font>

The same thing (symbolic <Default ¶ Font> result) happens with

"\x3c" for "<",

but not with "\x3e" for ">".

When a hex code is a printable latin character, Frame automatically converts it to that character when creating or editing a Variable definition. It neglects to advise you about this, and more egregiously, neglects to follow its own special character rules, but enforces the rules anyway.