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Implement built-in string procedures.

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* module/language/js-il/runtime.js
  (string-append): Extend to more than 2 arguments.
  (string-join): New procedure.
This commit is contained in:
Ian Price 2017-08-02 21:17:22 +01:00
parent 2adebea5d0
commit 2273eb4d06
1 changed files with 26 additions and 2 deletions
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28
module/language/js-il/runtime.js
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@ -797,8 +797,32 @@ def_guile0("string=?", function (self, cont, s1, s2) {
});
def_guile0("string-append", function (self, cont, s1, s2) {
var s = new scheme.String(s1.s + s2.s);
return cont(s);
var s = "";
for (var i = 2; i < arguments.length; i++) {
s += arguments[i].s;
}
//console.log("sap", s1, s2, arguments.length);
return cont(new scheme.String(s));
});
def_guile0("string-join", function (self, cont, strings) {
var s = "";
while (!scheme.is_true(scheme.primitives["null?"](strings))) {
if (scheme.is_true(scheme.primitives["pair?"](strings))) {
s += strings.car.s;
strings = strings.cdr;
} else {
console.log("string-join bad");
not_implemented_yet();
}
}
return cont(new scheme.String(s));
});
});
// Structs