Avoid use of non-standard escape character to avoid MSVC warning about it

io/ansiescapecodes.cpp

@@ -164,30 +164,30 @@ std::string_view formattedPhraseString(Phrases phrase)
     using namespace std::string_view_literals;
     switch (phrase) {
     case Phrases::Error:
-        return "\e[1;31mError: \e[0m\e[1m"sv;
+        return "\033[1;31mError: \033[0m\033[1m"sv;
     case Phrases::Warning:
-        return "\e[1;33mWarning: \e[0m\e[1m"sv;
+        return "\033[1;33mWarning: \033[0m\033[1m"sv;
     case Phrases::PlainMessage:
-        return "    \e[0m\e[1m"sv;
+        return "    \033[0m\033[1m"sv;
     case Phrases::SuccessMessage:
-        return "\e[1;32m==> \e[0m\e[1m"sv;
+        return "\033[1;32m==> \033[0m\033[1m"sv;
     case Phrases::SubMessage:
-        return "\e[1;32m  -> \e[0m\e[1m"sv;
+        return "\033[1;32m  -> \033[0m\033[1m"sv;
     case Phrases::ErrorMessage:
-        return "\e[1;31m==> ERROR: \e[0m\e[1m"sv;
+        return "\033[1;31m==> ERROR: \033[0m\033[1m"sv;
     case Phrases::WarningMessage:
-        return "\e[1;33m==> WARNING: \e[0m\e[1m";
+        return "\033[1;33m==> WARNING: \033[0m\033[1m";
     case Phrases::Info:
-        return "\e[1;34mInfo: \e[0m\e[1m"sv;
+        return "\033[1;34mInfo: \033[0m\033[1m"sv;
     case Phrases::SubError:
-        return "\e[1;31m  -> ERROR: \e[0m\e[1m"sv;
+        return "\033[1;31m  -> ERROR: \033[0m\033[1m"sv;
     case Phrases::SubWarning:
-        return "\e[1;33m  -> WARNING: \e[0m\e[1m"sv;
+        return "\033[1;33m  -> WARNING: \033[0m\033[1m"sv;
     case Phrases::InfoMessage:
-        return "\e[1;37m==> \e[0m\e[1m"sv;
+        return "\033[1;37m==> \033[0m\033[1m"sv;
     case Phrases::End:
     case Phrases::EndFlush:
-        return "\e[0m\n";
+        return "\033[0m\n";
     default:
         return std::string_view{};
     }

io/ansiescapecodes.h

@@ -34,7 +34,7 @@ enum class Direction : char { Up = 'A', Down = 'B', Forward = 'C', Backward = 'D
 inline void setStyle(std::ostream &stream, TextAttribute displayAttribute = TextAttribute::Reset)
 {
     if (enabled) {
-        stream << '\e' << '[' << static_cast<char>(displayAttribute) << 'm';
+        stream << '\033' << '[' << static_cast<char>(displayAttribute) << 'm';
     }
 }
 
@@ -42,14 +42,14 @@ inline void setStyle(
     std::ostream &stream, Color color, ColorContext context = ColorContext::Foreground, TextAttribute displayAttribute = TextAttribute::Reset)
 {
     if (enabled) {
-        stream << '\e' << '[' << static_cast<char>(displayAttribute) << ';' << static_cast<char>(context) << static_cast<char>(color) << 'm';
+        stream << '\033' << '[' << static_cast<char>(displayAttribute) << ';' << static_cast<char>(context) << static_cast<char>(color) << 'm';
     }
 }
 
 inline void setStyle(std::ostream &stream, Color foregroundColor, Color backgroundColor, TextAttribute displayAttribute = TextAttribute::Reset)
 {
     if (enabled) {
-        stream << '\e' << '[' << static_cast<char>(displayAttribute) << ';' << static_cast<char>(ColorContext::Foreground)
+        stream << '\033' << '[' << static_cast<char>(displayAttribute) << ';' << static_cast<char>(ColorContext::Foreground)
                << static_cast<char>(foregroundColor) << ';' << static_cast<char>(ColorContext::Background) << static_cast<char>(backgroundColor)
                << 'm';
     }
@@ -58,42 +58,42 @@ inline void setStyle(std::ostream &stream, Color foregroundColor, Color backgrou
 inline void resetStyle(std::ostream &stream)
 {
     if (enabled) {
-        stream << '\e' << '[' << static_cast<char>(TextAttribute::Reset) << 'm';
+        stream << '\033' << '[' << static_cast<char>(TextAttribute::Reset) << 'm';
     }
 }
 
 inline void setCursor(std::ostream &stream, unsigned int row = 0, unsigned int col = 0)
 {
     if (enabled) {
-        stream << '\e' << '[' << row << ';' << col << 'H';
+        stream << '\033' << '[' << row << ';' << col << 'H';
     }
 }
 
 inline void moveCursor(std::ostream &stream, unsigned int cells, Direction direction)
 {
     if (enabled) {
-        stream << '\e' << '[' << cells << static_cast<char>(direction);
+        stream << '\033' << '[' << cells << static_cast<char>(direction);
     }
 }
 
 inline void saveCursor(std::ostream &stream)
 {
     if (enabled) {
-        stream << "\e[s";
+        stream << "\033[s";
     }
 }
 
 inline void restoreCursor(std::ostream &stream)
 {
     if (enabled) {
-        stream << "\e[u";
+        stream << "\033[u";
     }
 }
 
 inline void eraseDisplay(std::ostream &stream)
 {
     if (enabled) {
-        stream << "\e[2J";
+        stream << "\033[2J";
     }
 }
 

tests/argumentparsertests.cpp

@@ -816,30 +816,30 @@ void ArgumentParserTests::testHelp()
     // parse args and assert output
     const char *const argv[] = { "app", "-h" };
     {
-        const OutputCheck c("\e[1m" APP_NAME ", version " APP_VERSION "\n"
+        const OutputCheck c("\033[1m" APP_NAME ", version " APP_VERSION "\n"
                             "\n"
-                            "\e[0m" APP_DESCRIPTION "\n"
+                            "\033[0m" APP_DESCRIPTION "\n"
                             "\n"
                             "Available operations:\n"
-                            "\e[1mverbose, -v\e[0m\n"
+                            "\033[1mverbose, -v\033[0m\n"
                             "  be verbose\n"
                             "  example: actually not an operation\n"
                             "\n"
                             "Available top-level options:\n"
-                            "\e[1m--files, -f\e[0m\n"
+                            "\033[1m--files, -f\033[0m\n"
                             "  specifies the path of the file(s) to be opened\n"
-                            "  \e[1m--sub\e[0m\n"
+                            "  \033[1m--sub\033[0m\n"
                             "    sub arg\n"
                             "    particularities: mandatory if parent argument is present\n"
-                            "    \e[1m--nested-sub\e[0m [value1] [value2] ...\n"
+                            "    \033[1m--nested-sub\033[0m [value1] [value2] ...\n"
                             "      nested sub arg\n"
                             "    example: sub arg example\n"
                             "\n"
-                            "\e[1m--env\e[0m [file] [value 2]\n"
+                            "\033[1m--env\033[0m [file] [value 2]\n"
                             "  env\n"
                             "  default environment variable: FILES\n"
                             "\n"
-                            "\e[1m--no-color\e[0m\n"
+                            "\033[1m--no-color\033[0m\n"
                             "  disables formatted/colorized output\n"
                             "  default environment variable: ENABLE_ESCAPE_CODES\n"
                             "\n"

tests/iotests.cpp

@@ -650,15 +650,15 @@ void IoTests::testAnsiEscapeCodes()
         << "blue, blinking text on red background" << EscapeCodes::TextAttribute::Reset << '\n';
     cout << "\noutput for formatting with ANSI escape codes:\n" << ss1.str() << "---------------------------------------------\n";
     fstream("/tmp/test.txt", ios_base::out | ios_base::trunc) << ss1.str();
-    CPPUNIT_ASSERT_EQUAL("\e[1;31mError: \e[0m\e[1msome error\e[0m\n"
+    CPPUNIT_ASSERT_EQUAL("\033[1;31mError: \033[0m\033[1msome error\033[0m\n"
-                         "\e[1;33mWarning: \e[0m\e[1msome warning\e[0m\n"
+                         "\033[1;33mWarning: \033[0m\033[1msome warning\033[0m\n"
-                         "\e[1;34mInfo: \e[0m\e[1msome info\e[0m\n"
+                         "\033[1;34mInfo: \033[0m\033[1msome info\033[0m\n"
-                         "\e[1;31m==> ERROR: \e[0m\e[1mArch-style error\e[0m\n"
+                         "\033[1;31m==> ERROR: \033[0m\033[1mArch-style error\033[0m\n"
-                         "\e[1;33m==> WARNING: \e[0m\e[1mArch-style warning\e[0m\n"
+                         "\033[1;33m==> WARNING: \033[0m\033[1mArch-style warning\033[0m\n"
-                         "    \e[0m\e[1mArch-style message\e[0m\n"
+                         "    \033[0m\033[1mArch-style message\033[0m\n"
-                         "\e[1;32m==> \e[0m\e[1mArch-style success\e[0m\n"
+                         "\033[1;32m==> \033[0m\033[1mArch-style success\033[0m\n"
-                         "\e[1;32m  -> \e[0m\e[1mArch-style sub-message\e[0m\n"
+                         "\033[1;32m  -> \033[0m\033[1mArch-style sub-message\033[0m\n"
-                         "\e[5;34;41mblue, blinking text on red background\e[0m\n"s,
+                         "\033[5;34;41mblue, blinking text on red background\033[0m\n"s,
         ss1.str());
 
     stringstream ss2;