From befc877768c0994c83e66ac80e1129114d983eee Mon Sep 17 00:00:00 2001
From: Arjen Baart <arjen@andromeda.nl>
Date: Thu, 18 Jun 2020 21:02:00 +0200
Subject: [PATCH] SuperString join()

---
 src/String.h               |  1 +
 src/superstring.cpp        | 16 ++++++++++++++++
 test/string_split_join.cpp |  6 ++++++
 test/string_split_join.exp |  4 ++++
 4 files changed, 27 insertions(+)
 create mode 100644 test/string_split_join.exp

diff --git a/src/String.h b/src/String.h
index bd66c53..2aac0d0 100644
--- a/src/String.h
+++ b/src/String.h
@@ -485,6 +485,7 @@ public:
       return x._ss > y._ss;
    }
 
+   String join(const String &separator);
 };
 
 #endif  /* STRING_H */
diff --git a/src/superstring.cpp b/src/superstring.cpp
index b71fd5f..c2d6696 100644
--- a/src/superstring.cpp
+++ b/src/superstring.cpp
@@ -62,3 +62,19 @@ SuperString& SuperString::operator+=(const String& x)
 
    return *this;
 }
+
+String SuperString::join(const String &separator)
+{
+   String joined;
+
+   if (_ss.size() != 0)
+   {
+      joined = _ss[0];
+      for (int i = 1; i < _ss.size(); i++)
+      {
+         joined += separator + _ss[i];
+      }
+   }
+
+   return joined;
+}
diff --git a/test/string_split_join.cpp b/test/string_split_join.cpp
index 63aa7d9..361dd3c 100644
--- a/test/string_split_join.cpp
+++ b/test/string_split_join.cpp
@@ -37,6 +37,12 @@ int main()
    assert(ss0[2] == "To");
    assert(ss0[3] == "Split");
 
+   String s1;
+
+   s1 = ss0.join(" ");
+   std::cout << "Joined with ' ': " << s1 << "\n";
+   assert(s1 == "The String To Split");
+
    return 0;
 }
 
diff --git a/test/string_split_join.exp b/test/string_split_join.exp
new file mode 100644
index 0000000..0f1205d
--- /dev/null
+++ b/test/string_split_join.exp
@@ -0,0 +1,4 @@
+The string The_String_To_Split split on "_":
+["The","String","To","Split"]
+Joined with ' ': The String To Split
+PASS string_split_join (exit status: 0)
-- 
2.20.1