SRFI 13: String Libraries

[lassik]

https://srfi.schemers.org/srfi-13/srfi-13.html

SRFI 13 procedures that already have ## equivalents in Gambit:

list->string
make-string
string
string->list
string-append
string-contains
string-copy
string-copy!
string-delete
string-downcase
string-length
string-ref
string-set!
string?

[lassik]

Additionally these are built in:

string<>     string=    string<    string>    string<=    string>=
string-ci<>  string-ci= string-ci< string-ci> string-ci<= string-ci>=

The names just have a ? suffix in Gambit, as they do in RnRS.