Hulk did something

[bytom/vapor.git] / vendor / golang.org / x / text / cases / icu.go

diff --git a/vendor/golang.org/x/text/cases/icu.go b/vendor/golang.org/x/text/cases/icu.go
new file mode 100644 (file)
index 0000000..46530d1
--- /dev/null
+++ b/vendor/golang.org/x/text/cases/icu.go
@@ -0,0 +1,61 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build icu
+
+package cases
+
+// Ideally these functions would be defined in a test file, but go test doesn't
+// allow CGO in tests. The build tag should ensure either way that these
+// functions will not end up in the package.
+
+// TODO: Ensure that the correct ICU version is set.
+
+/*
+#cgo LDFLAGS: -licui18n.57 -licuuc.57
+#include <stdlib.h>
+#include <unicode/ustring.h>
+#include <unicode/utypes.h>
+#include <unicode/localpointer.h>
+#include <unicode/ucasemap.h>
+*/
+import "C"
+
+import "unsafe"
+
+func doICU(tag, caser, input string) string {
+       err := C.UErrorCode(0)
+       loc := C.CString(tag)
+       cm := C.ucasemap_open(loc, C.uint32_t(0), &err)
+
+       buf := make([]byte, len(input)*4)
+       dst := (*C.char)(unsafe.Pointer(&buf[0]))
+       src := C.CString(input)
+
+       cn := C.int32_t(0)
+
+       switch caser {
+       case "fold":
+               cn = C.ucasemap_utf8FoldCase(cm,
+                       dst, C.int32_t(len(buf)),
+                       src, C.int32_t(len(input)),
+                       &err)
+       case "lower":
+               cn = C.ucasemap_utf8ToLower(cm,
+                       dst, C.int32_t(len(buf)),
+                       src, C.int32_t(len(input)),
+                       &err)
+       case "upper":
+               cn = C.ucasemap_utf8ToUpper(cm,
+                       dst, C.int32_t(len(buf)),
+                       src, C.int32_t(len(input)),
+                       &err)
+       case "title":
+               cn = C.ucasemap_utf8ToTitle(cm,
+                       dst, C.int32_t(len(buf)),
+                       src, C.int32_t(len(input)),
+                       &err)
+       }
+       return string(buf[:cn])
+}