From 380889a21cfc33a1d321643cb31a3c00675094bc Mon Sep 17 00:00:00 2001
From: Ruonan Wang <jason.ruonan.wang@gmail.com>
Date: Tue, 24 Sep 2019 01:48:41 -0400
Subject: [PATCH] added helper::StringToDims

---
 source/adios2/helper/adiosString.cpp | 19 +++++++++++++++++++
 source/adios2/helper/adiosString.h   |  2 ++
 2 files changed, 21 insertions(+)

diff --git a/source/adios2/helper/adiosString.cpp b/source/adios2/helper/adiosString.cpp
index a2bbecb635..36e0b8d640 100644
--- a/source/adios2/helper/adiosString.cpp
+++ b/source/adios2/helper/adiosString.cpp
@@ -274,6 +274,25 @@ std::string DimsToString(const Dims &dimensions)
     return dimensionsString;
 }
 
+Dims StringToDims(const std::string &dimentions)
+{
+    std::vector<size_t> shape;
+    size_t begin = 0;
+    for (size_t end = 0; end < dimentions.size(); ++end)
+    {
+        if (dimentions[end] == ',')
+        {
+            std::string s(dimentions, begin, end - begin);
+            shape.push_back(stoull(s));
+            begin = end + 1;
+            end = begin;
+        }
+    }
+    std::string s(dimentions, begin, dimentions.size() - begin);
+    shape.push_back(stoull(s));
+    return shape;
+}
+
 std::string GlobalName(const std::string &localName, const std::string &prefix,
                        const std::string separator) noexcept
 {
diff --git a/source/adios2/helper/adiosString.h b/source/adios2/helper/adiosString.h
index 3df2e6e8ba..c6dd64ee1b 100644
--- a/source/adios2/helper/adiosString.h
+++ b/source/adios2/helper/adiosString.h
@@ -120,6 +120,8 @@ void SetParameterValue(const std::string key, const Params &parameters,
  */
 std::string DimsToString(const Dims &dimensions);
 
+Dims StringToDims(const std::string &dimentions);
+
 /**
  * Sets global name: prefix + separator + localName. If prefix is empty it
  * returns the localName as-is.