interpreter2

interpreter2.c

void cli_read(t_cli_ctx *a_ctx) {

	unsigned char i = 0x00;
	unsigned char res = E_CMD_OK;

	// if no character available - then exit
	if (!CLI_IO_INPUT(&i)) return;

	/// multi-code matching
	if (a_ctx->mc.pos && a_ctx->mc.pos < MULTICODE_INPUT_MAX_LEN) {
		unsigned char mi = 0x00;

		a_ctx->mc.buf[a_ctx->mc.pos++] = i;
		while (a_ctx->mcmds[mi].fh) {
			if (!memcmp(a_ctx->mcmds[mi].pattern, 
						a_ctx->mc.buf,
						a_ctx->mcmds[mi].len)) {
				a_ctx->mcmds[mi].fh((void *)a_ctx);
				a_ctx->mc.pos = 0;
				memset(a_ctx->mc.buf, 0x00, MULTICODE_INPUT_MAX_LEN);
				break;
			}
			mi++;
		}
		return;
	}

	/// char by char matching
	switch(i) {
		case KEY_CODE_BACKSPACE: // backspace
		case KEY_CODE_DELETE: // del
			if (a_ctx->cpos) {
				a_ctx->cmd[a_ctx->cpos--] = '\0';
				CLI_IO_OUTPUT("\b \b", 3);
			}
			break;

		case KEY_CODE_ESCAPE: // special characters
			a_ctx->mc.pos = 1;
			a_ctx->mc.buf[0x00] = i;
			break;

		case KEY_CODE_ENTER: // new line
			a_ctx->cmd[POSINC(a_ctx->cpos)] = '\0';
			CLI_IO_OUTPUT("\r\n", 2);
			res = _cli_interpret_cmd(a_ctx);
			_cli_reinterpret_cmd(a_ctx, res);

			a_ctx->cpos = 0;
			memset(a_ctx->cmd, 0x00, CLI_CMD_BUFFER_SIZE);
			_cli_prompt(a_ctx, 1);
			break;

		default:
			/* echo */
			if (a_ctx->cpos < (CLI_CMD_BUFFER_SIZE - 1) && isprint(i)) {
				a_ctx->cmd[a_ctx->cpos++] = i;
				CLI_IO_OUTPUT(&i, 1);
			}
			break;
	}
}