Hello Schemers.
It looks like Gambit associates the value 26 to the #\esc character, instead of 27.
(char->integer #\esc) => 26
(integer->char 26) => #\esc
it might be unintentional, but lib/_io.c has ___DEF_GLO(26,"##escape-keyword?")
Isn't this blind chance?
Adrien.