1 files changed, 58 insertions, 0 deletions
diff --git a/src/gleam/iodata.gleam b/src/gleam/iodata.gleam
new file mode 100644
index 0000000..56efc65
--- /dev/null
+++ b/src/gleam/iodata.gleam
@@ -0,0 +1,58 @@
+pub external type Iodata;
+
+pub external fn prepend(Iodata, String) -> Iodata =
+  "gleam__stdlib" "iodata_prepend";
+
+pub external fn append(Iodata, String) -> Iodata =
+  "gleam__stdlib" "iodata_append";
+
+pub external fn prepend_iodata(Iodata, Iodata) -> Iodata =
+  "gleam__stdlib" "iodata_prepend";
+
+pub external fn append_iodata(Iodata, Iodata) -> Iodata =
+  "gleam__stdlib" "iodata_append";
+
+pub external fn from_strings(List(String)) -> Iodata =
+  "gleam__stdlib" "identity";
+
+pub external fn concat(List(Iodata)) -> Iodata =
+  "gleam__stdlib" "identity";
+
+pub external fn new(String) -> Iodata =
+  "gleam__stdlib" "identity";
+
+pub external fn to_string(Iodata) -> String =
+  "erlang" "iolist_to_binary";
+
+pub external fn byte_size(Iodata) -> Int =
+  "erlang" "iolist_size";
+
+pub external fn from_float(Float) -> Iodata =
+  "io_lib_format" "fwrite_g";
+
+pub external fn lowercase(Iodata) -> Iodata = "string" "lowercase"
+
+pub external fn uppercase(Iodata) -> Iodata = "string" "uppercase"
+
+pub external fn reverse(Iodata) -> Iodata = "string" "reverse"
+
+enum Direction =
+  | All
+
+external fn erl_split(Iodata, String, Direction) -> List(Iodata) =
+  "string" "split"
+
+pub fn split(iodata, on) {
+  erl_split(iodata, on, All)
+}
+
+external fn erl_replace(Iodata, String, String, Direction) -> Iodata =
+  "string" "replace"
+
+pub fn replace(iodata, pattern, replacement) {
+  erl_replace(iodata, pattern, replacement, All)
+}
+
+pub external fn is_equal(Iodata, Iodata) -> Bool = "string" "equal"
+
+pub external fn is_empty(Iodata) -> Bool = "string" "is_empty"