C++ ChoiceFormat类代码示例

/**
 * @bug 4142938
 * Test the applyPattern and toPattern handling of single quotes
 * by ChoiceFormat.  (This is in here because this was a bug reported
 * against MessageFormat.)  The single quote is used to quote the
 * pattern characters '|', '#', '<', and '\u2264'.  Two quotes in a row
 * is a quote literal.
 */
void MessageFormatRegressionTest::TestChoicePatternQuote() 
{
    // ICU 4.8 ChoiceFormat (like PluralFormat & SelectFormat)
    // returns the chosen string unmodified, so that it is usable in a MessageFormat.
    // We modified the test strings accordingly.
    // Note: Without further formatting/trimming/etc., it is not possible
    // to get a single grave as the last character of a non-final choice sub-message
    // because the single grave before the pipe '|' would start quoted text.
    // Normally, ChoiceFormat is used inside a MessageFormat, where a double grave
    // can be used in that case and will be formatted as a single one.
    UnicodeString DATA [] = {
        // Pattern                  0 value           1 value
        // {sfb} hacked - changed \u2264 to = (copied from Character Map)
        "0#can`t|1#can",            "can`t",          "can",
        "0#pound(#)=`#``|1#xyz",    "pound(#)=`#``",  "xyz",
        "0#1<2 `| 1=1`|1#`",        "1<2 `| 1=1`",    "`",
    };
    for (int i=0; i<9; i+=3) {
        //try {
            UErrorCode status = U_ZERO_ERROR;
            ChoiceFormat *cf = new ChoiceFormat(DATA[i], status);
            failure(status, "new ChoiceFormat");
            for (int j=0; j<=1; ++j) {
                UnicodeString out;
                FieldPosition pos(FieldPosition::DONT_CARE);
                out = cf->format((double)j, out, pos);
                if (out != DATA[i+1+j])
                    errln("Fail: Pattern \"" + DATA[i] + "\" x "+j+" -> " +
                          out + "; want \"" + DATA[i+1+j] + "\"");
            }
            UnicodeString pat;
            pat = cf->toPattern(pat);
            UnicodeString pat2;
            ChoiceFormat *cf2 = new ChoiceFormat(pat, status);
            pat2 = cf2->toPattern(pat2);
            if (pat != pat2)
                errln("Fail: Pattern \"" + DATA[i] + "\" x toPattern -> \"" + pat + "\"");
            else
                logln("Ok: Pattern \"" + DATA[i] + "\" x toPattern -> \"" + pat + "\"");
        /*}
        catch (IllegalArgumentException e) {
            errln("Fail: Pattern \"" + DATA[i] + "\" -> " + e);
        }*/
    
        delete cf;
        delete cf2;
    }
}

void TestMessageFormat::testBug1()
{
    const double limit[] = {0.0, 1.0, 2.0};
    const UnicodeString formats[] = {"0.0<=Arg<1.0",
                               "1.0<=Arg<2.0",
                               "2.0<-Arg"};
    ChoiceFormat *cf = new ChoiceFormat(limit, formats, 3);
    FieldPosition status(0);
    UnicodeString toAppendTo;
    cf->format((int32_t)1, toAppendTo, status);
    if (toAppendTo != "1.0<=Arg<2.0") {
        errln("ChoiceFormat cmp in testBug1");
    }
    logln(toAppendTo);
    delete cf;
}

void MessageFormatRegressionTest::Test4052223()
{

    ParsePosition pos(0);
    if (pos.getErrorIndex() != -1) {
        errln("ParsePosition.getErrorIndex initialization failed.");
    }

    UErrorCode status = U_ZERO_ERROR;
    MessageFormat *fmt = new MessageFormat("There are {0} apples growing on the {1} tree.", status);
    failure(status, "new MessageFormat");
    UnicodeString str("There is one apple growing on the peach tree.");
    
    int32_t count = 0;
    fmt->parse(str, pos, count);

    logln(UnicodeString("unparsable string , should fail at ") + pos.getErrorIndex());
    if (pos.getErrorIndex() == -1)
        errln("Bug 4052223 failed : parsing string " + str);
    pos.setErrorIndex(4);
    if (pos.getErrorIndex() != 4)
        errln(UnicodeString("setErrorIndex failed, got ") + pos.getErrorIndex() + " instead of 4");
    
    ChoiceFormat *f = new ChoiceFormat(
        "-1#are negative|0#are no or fraction|1#is one|1.0<is 1+|2#are two|2<are more than 2.", status);
    failure(status, "new ChoiceFormat");
    pos.setIndex(0); 
    pos.setErrorIndex(-1);
    Formattable obj;
    f->parse("are negative", obj, pos);
    if (pos.getErrorIndex() != -1 && obj.getDouble() == -1.0)
        errln(UnicodeString("Parse with \"are negative\" failed, at ") + pos.getErrorIndex());
    pos.setIndex(0); 
    pos.setErrorIndex(-1);
    f->parse("are no or fraction ", obj, pos);
    if (pos.getErrorIndex() != -1 && obj.getDouble() == 0.0)
        errln(UnicodeString("Parse with \"are no or fraction\" failed, at ") + pos.getErrorIndex());
    pos.setIndex(0); 
    pos.setErrorIndex(-1);
    f->parse("go postal", obj, pos);
    if (pos.getErrorIndex() == -1 && ! uprv_isNaN(obj.getDouble()))
        errln(UnicodeString("Parse with \"go postal\" failed, at ") + pos.getErrorIndex());
    
    delete fmt;
    delete f;
}

void MessageFormatRegressionTest::Test4106660()
{
    double limits [] = {3, 1, 2};
    UnicodeString formats [] = {
        UnicodeString("Three"), 
            UnicodeString("One"), 
            UnicodeString("Two")
    };
    ChoiceFormat *cf = new ChoiceFormat(limits, formats, 3);
    double d = 5.0;
    UnicodeString str;
    FieldPosition pos(FieldPosition::DONT_CARE);
    str = cf->format(d, str, pos);
    if (str != "Two")
        errln( (UnicodeString) "format(" + d + ") = " + str);

    delete cf;
}

void MessageFormatRegressionTest::TestChoicePatternQuote() 
{
    UnicodeString DATA [] = {
        // Pattern                  0 value           1 value
        // {sfb} hacked - changed \u2264 to = (copied from Character Map)
        (UnicodeString)"0#can''t|1#can",           (UnicodeString)"can't",          (UnicodeString)"can",
        (UnicodeString)"0#'pound(#)=''#'''|1#xyz", (UnicodeString)"pound(#)='#'",   (UnicodeString)"xyz",
        (UnicodeString)"0#'1<2 | 1=1'|1#''",  (UnicodeString)"1<2 | 1=1", (UnicodeString)"'",
    };
    for (int i=0; i<9; i+=3) {
        //try {
            UErrorCode status = U_ZERO_ERROR;
            ChoiceFormat *cf = new ChoiceFormat(DATA[i], status);
            failure(status, "new ChoiceFormat");
            for (int j=0; j<=1; ++j) {
                UnicodeString out;
                FieldPosition pos(FieldPosition::DONT_CARE);
                out = cf->format((double)j, out, pos);
                if (out != DATA[i+1+j])
                    errln("Fail: Pattern \"" + DATA[i] + "\" x "+j+" -> " +
                          out + "; want \"" + DATA[i+1+j] + '"');
            }
            UnicodeString pat;
            pat = cf->toPattern(pat);
            UnicodeString pat2;
            ChoiceFormat *cf2 = new ChoiceFormat(pat, status);
            pat2 = cf2->toPattern(pat2);
            if (pat != pat2)
                errln("Fail: Pattern \"" + DATA[i] + "\" x toPattern -> \"" + pat + '"');
            else
                logln("Ok: Pattern \"" + DATA[i] + "\" x toPattern -> \"" + pat + '"');
        /*}
        catch (IllegalArgumentException e) {
            errln("Fail: Pattern \"" + DATA[i] + "\" -> " + e);
        }*/
    
        delete cf;
        delete cf2;
    }
}

void
TestChoiceFormat::TestSimpleExample( void )
{
    double limits[] = {1,2,3,4,5,6,7};
    UnicodeString monthNames[] = {"Sun","Mon","Tue","Wed","Thur","Fri","Sat"};
    ChoiceFormat* form = new ChoiceFormat(limits, monthNames, 7);
    ParsePosition parse_pos;
    // TODO Fix this ParsePosition stuff...
    UnicodeString str;
    UnicodeString res1, res2;
    UErrorCode status;
    FieldPosition fpos(FieldPosition::DONT_CARE);
    Formattable f;
    int32_t ix;
    //for (double i = 0.0; i <= 8.0; ++i) {
    for (ix = 0; ix <= 8; ++ix) {
        double i = ix; //nos
        status = U_ZERO_ERROR;
        fpos = 0;
        str = "";
        res1 = form->format(i, str, fpos, status );
        if (!chkstatus( status, "***  test_simple_example format" )) {
            delete form;
            return;
        }
        //form->parse(res1, f, parse_pos);
        res2 = " ??? ";
        it_logln(UnicodeString("") + ix + UnicodeString(" -> ") + res1 + UnicodeString(" -> ") + res2);
    }
    //Testing ==operator
    const double filelimits[] = {0,1,2};
    const UnicodeString filepart[] = {"are no files","is one file","are {2} files"};
    ChoiceFormat* formnew=new ChoiceFormat(filelimits, filepart, 3); 
    ChoiceFormat* formequal=new ChoiceFormat(limits, monthNames, 7); 
    if(*formnew == *form){
        errln("ERROR: ==operator failed\n");
    }
    if(!(*form == *formequal)){
        errln("ERROR: ==operator failed\n");
    }
    delete formequal; 
    delete formnew; 

    //Testing getLimits()
    int32_t count=0;
    const double *gotLimits=form->getLimits(count);
#if 1  // ICU 4.8 deprecates and disables the ChoiceFormat getters.
    if(count != 0 || gotLimits != NULL) {
        errln("getLimits() returns something, should be disabled");
    }
    const UnicodeString *gotFormats=form->getFormats(count);
    if(count != 0 || gotFormats != NULL) {
        errln("getFormats() returns something, should be disabled");
    }
    const UBool *gotClosures=form->getClosures(count);
    if(count != 0 || gotClosures != NULL) {
        errln("getClosures() returns something, should be disabled");
    }
#else
    if(count != 7){
        errln("getLimits didn't update the count correctly\n");
    }
    for(ix=0; ix<count; ix++){
        if(gotLimits[ix] != limits[ix]){
            errln((UnicodeString)"getLimits didn't get the limits correctly.  Expected " + limits[ix] + " Got " + gotLimits[ix]);
        }
    }
    //Testing getFormats()
    count=0;
    const UnicodeString *gotFormats=form->getFormats(count);
    if(count != 7){
        errln("getFormats didn't update the count correctly\n");
    }
    for(ix=0; ix<count; ix++){
        if(gotFormats[ix] != monthNames[ix]){
            errln((UnicodeString)"getFormats didn't get the Formats correctly.  Expected " + monthNames[ix] + " Got " + gotFormats[ix]);
        }
    }
#endif

    delete form;
}

void MessageFormatRegressionTest::Test4094906()
{
    UErrorCode status = U_ZERO_ERROR;
    UnicodeString pattern("-");
    pattern += (UChar) 0x221E;
    pattern += "<are negative|0<are no or fraction|1#is one|1<is 1+|";
    pattern += (UChar) 0x221E;
    pattern += "<are many.";

    ChoiceFormat *fmt = new ChoiceFormat(pattern, status);
    failure(status, "new ChoiceFormat");
    UnicodeString pat;
    if (fmt->toPattern(pat) != pattern) {
        errln( (UnicodeString) "Formatter Pattern : " + pat);
        errln( (UnicodeString) "Expected Pattern  : " + pattern);
    }
    FieldPosition bogus(FieldPosition::DONT_CARE);
    UnicodeString str;

    // Will this work for -inf?
    logln("Format with -INF : " + fmt->format(Formattable(-uprv_getInfinity()), str, bogus, status));
    failure(status, "fmt->format");
    str.remove();
    logln("Format with -1.0 : " + fmt->format(Formattable(-1.0), str, bogus, status));
    failure(status, "fmt->format");
    str.remove();
    logln("Format with -1.0 : " + fmt->format(Formattable(-1.0), str, bogus, status));
    failure(status, "fmt->format");
    str.remove();
    logln("Format with 0 : " + fmt->format(Formattable((int32_t)0), str, bogus, status));
    failure(status, "fmt->format");
    str.remove();
    logln("Format with 0.9 : " + fmt->format(Formattable(0.9), str, bogus, status));
    failure(status, "fmt->format");
    str.remove();
    logln("Format with 1.0 : " + fmt->format(Formattable(1.0), str, bogus, status));
    failure(status, "fmt->format");
    str.remove();
    logln("Format with 1.5 : " + fmt->format(Formattable(1.5), str, bogus, status));
    failure(status, "fmt->format");
    str.remove();
    logln("Format with 2 : " + fmt->format(Formattable((int32_t)2), str, bogus, status));
    failure(status, "fmt->format");
    str.remove();
    logln("Format with 2.1 : " + fmt->format(Formattable(2.1), str, bogus, status));
    failure(status, "fmt->format");
    str.remove();
    logln("Format with NaN : " + fmt->format(Formattable(uprv_getNaN()), str, bogus, status));
    failure(status, "fmt->format");
    str.remove();
    logln("Format with +INF : " + fmt->format(Formattable(uprv_getInfinity()), str, bogus, status));
    failure(status, "fmt->format");

    delete fmt;
}