Added performers. fixes #278

src/libs/utils/impl/String.cpp

@@ -115,17 +115,21 @@ joinStrings(const std::vector<std::string>& strings, const std::string& delimite
 	return boost::algorithm::join(strings, delimiter);
 }
 
-std::string
+std::string_view
 stringTrim(std::string_view str, std::string_view whitespaces)
 {
+	std::string_view res;
+
 	const auto strBegin = str.find_first_not_of(whitespaces);
-	if (strBegin == std::string_view::npos)
-		return ""; // no content
+	if (strBegin != std::string_view::npos)
+	{
+		const auto strEnd {str.find_last_not_of(whitespaces)};
+		const auto strRange {strEnd - strBegin + 1};
 
-	const auto strEnd = str.find_last_not_of(whitespaces);
-	const auto strRange = strEnd - strBegin + 1;
+		res = str.substr(strBegin, strRange);
+	}
 
-	return std::string {str.substr(strBegin, strRange)};
+	return res;
 }
 
 std::string
@@ -175,6 +179,21 @@ bufferToString(const std::vector<unsigned char>& data)
 	return oss.str();
 }
 
+void
+capitalize(std::string& str)
+{
+	for (auto it {std::begin(str)}; it != std::end(str); ++it)
+	{
+		if (std::isspace(*it))
+			continue;
+
+		if (std::isalpha(*it))
+			*it = std::toupper(*it);
+
+		break;
+	}
+}
+
 std::string
 replaceInString(std::string_view str, const std::string& from, const std::string& to)
 {

src/libs/utils/include/utils/String.hpp

@@ -44,7 +44,7 @@ std::string
 joinStrings(const std::vector<std::string>& strings, const std::string& delimiter);
 
 [[nodiscard]]
-std::string
+std::string_view
 stringTrim(std::string_view str, std::string_view whitespaces = " \t");
 
 [[nodiscard]]
@@ -66,6 +66,9 @@ stringToUpper(const std::string& str);
 std::string
 bufferToString(const std::vector<unsigned char>& data);
 
+void
+capitalize(std::string& str);
+
 template<typename T>
 [[nodiscard]]
 std::optional<T> readAs(std::string_view str)

src/libs/utils/test/String.cpp

@@ -118,3 +118,32 @@ TEST(StringUtils, readAs)
 	EXPECT_EQ(StringUtils::readAs<bool>("foo"), std::nullopt);
 	EXPECT_EQ(StringUtils::readAs<bool>(""), std::nullopt);
 }
+
+TEST(StrinUtils, capitalize)
+{
+	struct TestCase
+	{
+		std::string input;
+		std::string expectedOutput;
+	};
+
+	TestCase tests[]
+	{
+		{"", ""},
+		{"C", "C"},
+		{"c", "C"},
+		{" c", " C"},
+		{" cc", " Cc"},
+		{"(c", "(c"},
+		{"1c", "1c"},
+		{"&c", "&c"},
+		{"c c", "C c"}
+	};
+
+	for (const TestCase& test : tests)
+	{
+		std::string str {test.input};
+		StringUtils::capitalize(str);
+		EXPECT_EQ(str, test.expectedOutput) << " str was '" << test.input << "'";
+	}
+}