Function con_write

libctru/source/console.c:450–614

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//---------------------------------------------------------------------------------
ssize_t con_write(struct _reent *r,void *fd,const char *ptr, size_t len) {
//---------------------------------------------------------------------------------

	char chr;

	int i, count = 0;
	char *tmp = (char*)ptr;

	if(!tmp) return -1;

	i = 0;

	while(i<len) {

		chr = *(tmp++);
		i++; count++;
		switch (escapeSeq.state)
		{
		case ESC_NONE:
			if (chr == 0x1b)
				escapeSeq.state = ESC_START;
			else
				consolePrintChar(chr);
			break;
		case ESC_START:
			if (chr == '[')
			{
				escapeSeq.state = ESC_BUILDING_UNKNOWN;
				escapeSeq.hasArg = false;
				memset(escapeSeq.args, 0, sizeof(escapeSeq.args));
				escapeSeq.color.bg = currentConsole->bg;
				escapeSeq.color.fg = currentConsole->fg;
				escapeSeq.color.flags = currentConsole->flags;
				escapeSeq.argIdx = 0;
			}
			else
			{
				consolePrintChar(0x1b);
				consolePrintChar(chr);
				escapeSeq.state = ESC_NONE;
			}
			break;
		case ESC_BUILDING_UNKNOWN:
			switch (chr)
			{
			case '0':
			case '1':
			case '2':
			case '3':
			case '4':
			case '5':
			case '6':
			case '7':
			case '8':
			case '9':
				escapeSeq.hasArg = true;
				escapeSeq.args[escapeSeq.argIdx] = escapeSeq.args[escapeSeq.argIdx] * 10 + (chr - '0');
				break;