deps: Intl: Check in "small-icu" 57.1

* this commit has "small" ICU 57.1.
See other related commit for tools to generate this commit.

Fixes: https://github.com/nodejs/node/issues/3476
PR-URL: https://github.com/nodejs/node/pull/6088
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 56 insertions, 0 deletions

diff --git a/deps/icu-small/source/i18n/digitgrouping.cpp b/deps/icu-small/source/i18n/digitgrouping.cpp
new file mode 100644
index 0000000000..0a340cdc4a
--- /dev/null
+++ b/deps/icu-small/source/i18n/digitgrouping.cpp
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2015, International Business Machines
+ * Corporation and others.  All Rights Reserved.
+ *
+ * file name: digitgrouping.cpp
+ */
+
+#include "unicode/utypes.h"
+
+#include "digitgrouping.h"
+#include "smallintformatter.h"
+
+U_NAMESPACE_BEGIN
+
+UBool DigitGrouping::isSeparatorAt(
+        int32_t digitsLeftOfDecimal, int32_t digitPos) const {
+    if (!isGroupingEnabled(digitsLeftOfDecimal) || digitPos < fGrouping) {
+        return FALSE;
+    }
+    return ((digitPos - fGrouping) % getGrouping2() == 0);
+}
+
+int32_t DigitGrouping::getSeparatorCount(int32_t digitsLeftOfDecimal) const {
+    if (!isGroupingEnabled(digitsLeftOfDecimal)) {
+        return 0;
+    }
+    return (digitsLeftOfDecimal - 1 - fGrouping) / getGrouping2() + 1;
+}
+
+UBool DigitGrouping::isGroupingEnabled(int32_t digitsLeftOfDecimal) const {
+    return (isGroupingUsed()
+            && digitsLeftOfDecimal >= fGrouping + getMinGrouping());
+}
+
+UBool DigitGrouping::isNoGrouping(
+        int32_t positiveValue, const IntDigitCountRange &range) const {
+    return getSeparatorCount(
+            SmallIntFormatter::estimateDigitCount(positiveValue, range)) == 0;
+}
+
+int32_t DigitGrouping::getGrouping2() const {
+    return (fGrouping2 > 0 ? fGrouping2 : fGrouping);
+}
+
+int32_t DigitGrouping::getMinGrouping() const {
+    return (fMinGrouping > 0 ? fMinGrouping : 1);
+}
+
+void
+DigitGrouping::clear() {
+    fMinGrouping = 0;
+    fGrouping = 0;
+    fGrouping2 = 0;
+}
+
+U_NAMESPACE_END