From 40e231bc29e453ecb685b02204cec46c458b80d7 Mon Sep 17 00:00:00 2001
From: Mattes D <github@xoft.cz>
Date: Sat, 24 Jan 2015 09:39:14 +0100
Subject: StringUtils: Added string vector manipulation.

---
 src/StringUtils.cpp | 44 ++++++++++++++++++++++++++++++++++++++++++++
 src/StringUtils.h   | 11 ++++++++++-
 2 files changed, 54 insertions(+), 1 deletion(-)

diff --git a/src/StringUtils.cpp b/src/StringUtils.cpp
index a63525356..48486a762 100644
--- a/src/StringUtils.cpp
+++ b/src/StringUtils.cpp
@@ -905,3 +905,47 @@ bool SplitZeroTerminatedStrings(const AString & a_Strings, AStringVector & a_Out
 
 
 
+
+AStringVector MergeStringVectors(const AStringVector & a_Strings1, const AStringVector & a_Strings2)
+{
+	// Initialize the resulting vector by the first vector:
+	AStringVector res = a_Strings1;
+
+	// Add each item from strings2 that is not already present:
+	for (auto item : a_Strings2)
+	{
+		if (std::find(res.begin(), res.end(), item) != res.end())
+		{
+			res.push_back(item);
+		}
+	}  // for item - a_Strings2[]
+
+	return res;
+}
+
+
+
+
+
+AString StringsConcat(const AStringVector & a_Strings, char a_Separator)
+{
+	// If the vector is empty, return an empty string:
+	if (a_Strings.empty())
+	{
+		return "";
+	}
+
+	// Concatenate the strings in the vector:
+	AString res;
+	res.append(a_Strings[0]);
+	for (auto itr = a_Strings.cbegin() + 1, end = a_Strings.cend(); itr != end; ++itr)
+	{
+		res.push_back(a_Separator);
+		res.append(*itr);
+	}
+	return res;
+}
+
+
+
+
diff --git a/src/StringUtils.h b/src/StringUtils.h
index bfe2a41fa..bc3bb7a2c 100644
--- a/src/StringUtils.h
+++ b/src/StringUtils.h
@@ -115,7 +115,16 @@ a_Output is first cleared and then each separate string is pushed back into a_Ou
 Returns true if there are at least two strings in a_Output (there was at least one \0 separator). */
 extern bool SplitZeroTerminatedStrings(const AString & a_Strings, AStringVector & a_Output);
 
-/// Parses any integer type. Checks bounds and returns errors out of band.
+/** Merges the two vectors of strings, removing duplicate entries from the second vector.
+The resulting vector contains items from a_Strings1 first, then from a_Strings2.
+The order of items doesn't change, only the duplicates are removed.
+If a_Strings1 contains duplicates, the result will still contain those duplicates. */
+extern AStringVector MergeStringVectors(const AStringVector & a_Strings1, const AStringVector & a_Strings2);
+
+/** Concatenates the specified strings into a single string, separated by the specified separator. */
+extern AString StringsConcat(const AStringVector & a_Strings, char a_Separator);
+
+/** Parses any integer type. Checks bounds and returns errors out of band. */
 template <class T>
 bool StringToInteger(const AString & a_str, T & a_Num)
 {
-- 
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