Function consolePrintChar

libctru/source/console.c:841–896

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//---------------------------------------------------------------------------------
void consolePrintChar(int c) {
//---------------------------------------------------------------------------------
	int tabspaces;

	if (c==0) return;

	if(currentConsole->PrintChar)
		if(currentConsole->PrintChar(currentConsole, c))
			return;

	switch(c) {
		/*
		The only special characters we will handle are tab (\t), carriage return (\r), line feed (\n)
		and backspace (\b).
		Carriage return & line feed will function the same: go to next line and put cursor at the beginning.
		For everything else, use VT sequences.

		Reason: VT sequences are more specific to the task of cursor placement.
		The special escape sequences \b \f & \v are archaic and non-portable.
		*/
		case 8:
			currentConsole->cursorX--;

			if(currentConsole->cursorX < 1) {
				if(currentConsole->cursorY > 1) {
					currentConsole->cursorX = currentConsole->windowWidth;
					currentConsole->cursorY--;
				} else {
					currentConsole->cursorX = 1;
				}
			}

			consoleDrawChar(' ');
			break;

		case 9:
			tabspaces = currentConsole->tabSize - ((currentConsole->cursorX - 1) % currentConsole->tabSize);
			for(int i=0; i<tabspaces; i++) consolePrintChar(' ');
			break;
		case 10:
			newRow();
		case 13:
			currentConsole->cursorX  = 1;
			gfxFlushBuffers();
			break;
		default:
			if(currentConsole->cursorX  > currentConsole->windowWidth) {
				currentConsole->cursorX  = 1;

				newRow();
			}
			consoleDrawChar(c);
			++currentConsole->cursorX ;
			break;
	}
}

//---------------------------------------------------------------------------------