Method substring

src/main/java/freemarker/core/TextBlock.java:392–396

(char[] c, int from, int to)

    }

    private static char[] substring(char[] c, int from, int to) {
        char[] c2 = new char[to - from];
        System.arraycopy(c, from, c2, 0, c2.length);
        return c2;
    }
    
    private static char[] substring(char[] c, int from) {
        return substring(c, from, c.length);