modules/jretools/src/main/java/org/apache/harmony/jretools/internal/nls/Messages.java [163:210]:
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    public static String format(String format, Object[] args) {
        StringBuilder answer = new StringBuilder(format.length()
                + (args.length * 20));
        String[] argStrings = new String[args.length];
        for (int i = 0; i < args.length; ++i) {
            if (args[i] == null)
                argStrings[i] = "<null>";	//$NON-NLS-1$
            else
                argStrings[i] = args[i].toString();
        }
        int lastI = 0;
        for (int i = format.indexOf('{', 0); i >= 0; i = format.indexOf('{',
                lastI)) {
            if (i != 0 && format.charAt(i - 1) == '\\') {
                // It's escaped, just print and loop.
                if (i != 1)
                    answer.append(format.substring(lastI, i - 1));
                answer.append('{');
                lastI = i + 1;
            } else {
                // It's a format character.
                if (i > format.length() - 3) {
                    // Bad format, just print and loop.
                    answer.append(format.substring(lastI, format.length()));
                    lastI = format.length();
                } else {
                    int argnum = (byte) Character.digit(format.charAt(i + 1),
                            10);
                    if (argnum < 0 || format.charAt(i + 2) != '}') {
                        // Bad format, just print and loop.
						answer.append(format.substring(lastI, i + 1));
						lastI = i + 1;
                    } else {
                        // Got a good one!
                        answer.append(format.substring(lastI, i));
                        if (argnum >= argStrings.length)
                            answer.append("<missing argument>");	//$NON-NLS-1$
                        else
                            answer.append(argStrings[argnum]);
						lastI = i + 3;
                    }
                }
            }
        }
        if (lastI < format.length())
            answer.append(format.substring(lastI, format.length()));
        return answer.toString();
    }
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modules/jdktools/src/main/java/org/apache/harmony/tools/internal/nls/Messages.java [163:210]:
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    public static String format(String format, Object[] args) {
        StringBuilder answer = new StringBuilder(format.length()
                + (args.length * 20));
        String[] argStrings = new String[args.length];
        for (int i = 0; i < args.length; ++i) {
            if (args[i] == null)
                argStrings[i] = "<null>";	//$NON-NLS-1$
            else
                argStrings[i] = args[i].toString();
        }
        int lastI = 0;
        for (int i = format.indexOf('{', 0); i >= 0; i = format.indexOf('{',
                lastI)) {
            if (i != 0 && format.charAt(i - 1) == '\\') {
                // It's escaped, just print and loop.
                if (i != 1)
                    answer.append(format.substring(lastI, i - 1));
                answer.append('{');
                lastI = i + 1;
            } else {
                // It's a format character.
                if (i > format.length() - 3) {
                    // Bad format, just print and loop.
                    answer.append(format.substring(lastI, format.length()));
                    lastI = format.length();
                } else {
                    int argnum = (byte) Character.digit(format.charAt(i + 1),
                            10);
                    if (argnum < 0 || format.charAt(i + 2) != '}') {
                        // Bad format, just print and loop.
						answer.append(format.substring(lastI, i + 1));
						lastI = i + 1;
                    } else {
                        // Got a good one!
                        answer.append(format.substring(lastI, i));
                        if (argnum >= argStrings.length)
                            answer.append("<missing argument>");	//$NON-NLS-1$
                        else
                            answer.append(argStrings[argnum]);
						lastI = i + 3;
                    }
                }
            }
        }
        if (lastI < format.length())
            answer.append(format.substring(lastI, format.length()));
        return answer.toString();
    }
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