feat(go): bindings

1 files changed, 45 insertions, 0 deletions

diff --git a/go/typdown.go b/go/typdown.go
new file mode 100644
index 0000000..8d8fff7
--- /dev/null
+++ b/go/typdown.go
@@ -0,0 +1,45 @@
+package typdown
+
+// #cgo LDFLAGS: -L${SRCDIR}/zig-out/lib/ -ltypdown
+// #include <stdlib.h>
+// #include "typdown.h"
+import "C"
+import (
+	"errors"
+	"html/template"
+	"unsafe"
+)
+
+var (
+	codeErrors = map[uint8]error{
+		1: errors.New("out of memory"),
+		2: ErrInvalidUtf8,
+		3: ErrNotSupported,
+		4: ErrModifierNotClosed,
+		5: ErrInvalidTitleContent,
+		6: ErrIllegalPlacement,
+		7: ErrInvalidLink,
+	}
+	ErrInvalidUtf8         = errors.New("invalid UTF-8")
+	ErrNotSupported        = errors.New("feature not supported")
+	ErrModifierNotClosed   = errors.New("modifier not closed")
+	ErrInvalidTitleContent = errors.New("invalid title content")
+	ErrIllegalPlacement    = errors.New("illegal placement")
+	ErrInvalidLink         = errors.New("invalid link")
+)
+
+func Parse(content string) (template.HTML, error) {
+	code := C.uchar(0)
+	conv := C.CString(content)
+	raw := C.parse(conv, &code)
+	defer C.free(unsafe.Pointer(conv))
+	if code > 0 {
+		err := codeErrors[uint8(code)]
+		if code == 1 {
+			panic(err)
+		}
+		return "", err
+	}
+	defer C.free(unsafe.Pointer(raw))
+	return template.HTML(C.GoString(raw)), nil
+}