append pump tester, using libxlsxwriter data.

Pump/text_coloring.h

@@ -0,0 +1,35 @@
+#pragma once
+#include <cstdlib>
+#include <sstream>
+
+namespace coloring {
+
+  enum class Color {
+    BLACK = 0,
+    RED = 1,
+    GREEN = 2,
+    YELLOW = 3,
+    BLUE = 4,
+    MAGENTA = 5,
+    CYAN = 6,
+    WHITE = 7,
+    DEFAULT = 9
+  };
+
+  namespace {
+    char textcolor[] = {0x1b, '[', '1', ';', '3'};
+    std::string getColorCode(Color c) {
+      std::stringstream ss;
+      ss << textcolor << static_cast<int>(c) << "m";
+      return ss.str();
+    }
+  }  // namespace
+
+
+  std::string coloringText(std::string str, Color c) {
+    std::stringstream ss;
+    ss << getColorCode(c) << str << getColorCode(Color::DEFAULT);
+    return ss.str();
+  }
+
+}