Method toPos

src/main/java/com/innovatrics/mrz/Demo.java:35–52

(int col, int row, String text)

public class Demo {

    private static int toPos(int col, int row, String text) {
        int currentRow = 0;
        int currentCol = 0;
        int pos = 0;
        while (text.length() > pos) {
            if (row == currentRow && currentCol == col) {
                return pos;
            }
            if (text.charAt(pos) == '\n') {
                currentRow++;
                currentCol = 0;
            } else {
                currentCol++;
            }
            pos++;
        }
        return -1;
    }

    /**
     * MRZ demo.