Examples of com.ibm.icu.text.MessageFormat.toPattern()

com.ibm.icu.text.MessageFormat.toPattern()
Returns a pattern representing the current state of the message format. The string is constructed from internal information and therefore does not necessarily equal the previously applied pattern. @return a pattern representing the current state of the message format @stable ICU 3.0

     * MessageFormat.toPattern has weird rounding behavior.
     */
    public void Test4058973() {


        MessageFormat fmt = new MessageFormat("{0,choice,0#no files|1#one file|1< {0,number,integer} files}");
        String pat = fmt.toPattern();
        if (!pat.equals("{0,choice,0.0#no files|1.0#one file|1.0< {0,number,integer} files}")) {
            errln("MessageFormat.toPattern failed");
        }
    }
    /* @bug 4031438

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            logln("Formatted with params : " + tempBuffer);
            tempBuffer = messageFormatter.format(null);
            if (!tempBuffer.equals("Double ' Quotes {0} test and quoted {1} test plus other {2} stuff."))
                errln("quote format test (w/ null) failed.");
            logln("Formatted with null : " + tempBuffer);
            logln("toPattern : " + messageFormatter.toPattern());
        } catch (Exception foo) {
            warnln("Exception when formatting in bug 4031438. "+foo.getMessage());
        }
    }
    public void Test4052223()

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        }


        if (!format1.equals(format2)) {
            errln("MessageFormats before and after serialization are not" +
                " equal\nformat1 = " + format1 + "(" + format1.toPattern() + ")\nformat2 = " +
                format2 + "(" + format2.toPattern() + ")");
        } else {
            logln("Serialization for MessageFormat is OK.");
        }
    }
    /* @bug 4114743

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        try {
            String illegalPattern = "ab { '}' de";
            mf.applyPattern(illegalPattern);
            errln("illegal pattern: \"" + illegalPattern + "\"");
        } catch (IllegalArgumentException foo) {
            if (!originalPattern.equals(mf.toPattern()))
                errln("pattern after: \"" + mf.toPattern() + "\"");
        }
    }


    /* @bug 4116444

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            String illegalPattern = "ab { '}' de";
            mf.applyPattern(illegalPattern);
            errln("illegal pattern: \"" + illegalPattern + "\"");
        } catch (IllegalArgumentException foo) {
            if (!originalPattern.equals(mf.toPattern()))
                errln("pattern after: \"" + mf.toPattern() + "\"");
        }
    }


    /* @bug 4116444
     * MessageFormat.parse has different behavior in case of null.

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        MessageFormat mf = new MessageFormat("<{0}>");
        Object[] objs1 = null;
        Object[] objs2 = {};
        Object[] objs3 = {null};
        try {
            logln("pattern: \"" + mf.toPattern() + "\"");
            log("format(null) : ");
            logln("\"" + mf.format(objs1) + "\"");
            log("format({})   : ");
            logln("\"" + mf.format(objs2) + "\"");
            log("format({null}) :");

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    public void Test4113018()
    {
        String originalPattern = "initial pattern";
        MessageFormat mf = new MessageFormat(originalPattern);
        String illegalPattern = "format: {0, xxxYYY}";
        logln("pattern before: \"" + mf.toPattern() + "\"");
        logln("illegal pattern: \"" + illegalPattern + "\"");
        try {
            mf.applyPattern(illegalPattern);
            errln("Should have thrown IllegalArgumentException for pattern : " + illegalPattern);
        } catch (IllegalArgumentException e) {

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        logln("illegal pattern: \"" + illegalPattern + "\"");
        try {
            mf.applyPattern(illegalPattern);
            errln("Should have thrown IllegalArgumentException for pattern : " + illegalPattern);
        } catch (IllegalArgumentException e) {
            if (!originalPattern.equals(mf.toPattern()))
                errln("pattern after: \"" + mf.toPattern() + "\"");
        }
    }
    /* @bug 4106661
     * ChoiceFormat is silent about the pattern usage in javadoc.

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        try {
            mf.applyPattern(illegalPattern);
            errln("Should have thrown IllegalArgumentException for pattern : " + illegalPattern);
        } catch (IllegalArgumentException e) {
            if (!originalPattern.equals(mf.toPattern()))
                errln("pattern after: \"" + mf.toPattern() + "\"");
        }
    }
    /* @bug 4106661
     * ChoiceFormat is silent about the pattern usage in javadoc.
     */

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        for (int i = 0; i < 5; i++) {
            String formatted = prefix + "YES";
            mf.applyPattern(prefix + pattern);
            prefix += "x";
            Object[] objs = mf.parse(formatted, new ParsePosition(0));
            logln(i + ". pattern :\"" + mf.toPattern() + "\"");
            log(" \"" + formatted + "\" parsed as ");
            if (objs == null) logln("  null");
            else logln("  " + objs[0]);
        }
    }

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