Function PrintColorEncoded

src/gtest/gtest-all.cpp:5973–6005

Prints a string containing code-encoded text. The following escape sequences can be used in the string to control the text color: @@ prints a single '@' character. @R changes the color to red. @G changes the color to green. @Y changes the color to yellow. @D changes to the default terminal text color. TODO(wan@google.com): Write tests for this once we add stdout capturing to Goog

// TODO(wan@google.com): Write tests for this once we add stdout
// capturing to Google Test.
static void PrintColorEncoded(const char* str) {
  GTestColor color = COLOR_DEFAULT;  // The current color.

  // Conceptually, we split the string into segments divided by escape
  // sequences.  Then we print one segment at a time.  At the end of
  // each iteration, the str pointer advances to the beginning of the
  // next segment.
  for (;;) {
    const char* p = strchr(str, '@');
    if (p == NULL) {
      ColoredPrintf(color, "%s", str);
      return;
    }

    ColoredPrintf(color, "%s", String(str, p - str).c_str());

    const char ch = p[1];
    str = p + 2;
    if (ch == '@') {
      ColoredPrintf(color, "@");
    } else if (ch == 'D') {
      color = COLOR_DEFAULT;
    } else if (ch == 'R') {
      color = COLOR_RED;
    } else if (ch == 'G') {
      color = COLOR_GREEN;
    } else if (ch == 'Y') {
      color = COLOR_YELLOW;
    } else {
      --str;
    }
  }
}

static const char kColorEncodedHelpMessage[] =
"This program contains tests written using " GTEST_NAME_ ". You can use the\n"