Examples of net.sf.saxon.om.FastStringBuffer

net.sf.saxon.om.FastStringBuffer
A simple implementation of a class similar to StringBuffer. Unlike StringBuffer it is not synchronized. It also offers the capability to remove unused space. (This class could possibly be replaced by StringBuilder in JDK 1.5, but using our own class gives more control.)

        }
    }


    public CharSequence getStringValueCS() {


        FastStringBuffer sb = new FastStringBuffer(16);
        int yr = year;
        if (year < 0) {
            sb.append('-');
            yr = -yr +1;           // no year zero in lexical space
        }
        appendString(sb, yr, (yr>9999 ? (yr+"").length() : 4));


        sb.append('-');
        appendTwoDigits(sb, month);


        if (hasTimezone()) {
            appendTimezone(sb);
        }

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     * @return ISO 8601 representation.
     */


    public CharSequence getStringValueCS() {


        FastStringBuffer sb = new FastStringBuffer(32);
        if (negative) {
            sb.append('-');
        }


        int days = getDays();
        int hours = getHours();
        int minutes = getMinutes();
        int seconds = getSeconds();


        sb.append('P');
        if (days != 0) {
            sb.append(days + "D");
        }
        if (days == 0 || hours != 0 || minutes != 0 || seconds != 0 || microseconds != 0) {
            sb.append('T');
        }
        if (hours != 0) {
            sb.append(hours + "H");
        }
        if (minutes != 0) {
            sb.append(minutes + "M");
        }
        if (seconds != 0 || microseconds != 0 || (days == 0 && minutes == 0 && hours == 0)) {
            if (microseconds == 0) {
                sb.append(seconds + "S");
            } else {
                long ms = (seconds * 1000000) + microseconds;
                String mss = ms + "";
                if (seconds == 0) {
                    mss = "0000000" + mss;
                    mss = mss.substring(mss.length() - 7);
                }
                sb.append(mss.substring(0, mss.length() - 6));
                sb.append('.');
                int lastSigDigit = mss.length() - 1;
                while (mss.charAt(lastSigDigit) == '0') {
                    lastSigDigit--;
                }
                sb.append(mss.substring(mss.length() - 6, lastSigDigit + 1));
                sb.append('S');
            }
        }
        return sb;
    }

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    private static CharSequence formatDate(CalendarValue value, String format, String language, String country, XPathContext context)
    throws XPathException {


        Numberer numberer = NumberInstruction.makeNumberer(language, country, context);
        FastStringBuffer sb = new FastStringBuffer(32);
        if (!numberer.getClass().getName().endsWith("Numberer_" + language)) {
            sb.append("[Language: en]");
        }
        int i = 0;
        while (true) {
            while (i < format.length() && format.charAt(i) != '[') {
                sb.append(format.charAt(i));
                if (format.charAt(i) == ']') {
                    i++;
                    if (i == format.length() || format.charAt(i) != ']') {
                        XPathException e = new XPathException("Closing ']' in date picture must be written as ']]'");
                        e.setErrorCode("XTDE1340");
                        e.setXPathContext(context);
                        throw e;
                    }
                }
                i++;
            }
            if (i == format.length()) {
                break;
            }
            // look for '[['
            i++;
            if (i < format.length() && format.charAt(i) == '[') {
                sb.append('[');
                i++;
            } else {
                int close = (i < format.length() ? format.indexOf("]", i) : -1);
                if (close == -1) {
                    XPathException e = new XPathException("Date format contains a '[' with no matching ']'");
                    e.setErrorCode("XTDE1340");
                    e.setXPathContext(context);
                    throw e;
                }
                String componentFormat = format.substring(i, close);
                sb.append(formatComponent(value, Whitespace.removeAllWhitespace(componentFormat), numberer, context));
                i = close+1;
            }
        }
        return sb;
    }

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            min = range[0];
            max = range[1];
            if (defaultFormat) {
                // if format was defaulted, the explicit widths override the implicit format
                if (primary.endsWith("1") && min != primary.length()) {
                    FastStringBuffer sb = new FastStringBuffer(min+1);
                    for (int i=1; i<min; i++) {
                        sb.append('0');
                    }
                    sb.append('1');
                    primary = sb.toString();
                }
            }
        }


        if ("P".equals(component)) {

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                return tzname;
            } else {
                return NamedTimeZone.getOlsenTimeZoneName(value, country);
            }
        }
        FastStringBuffer sbz = new FastStringBuffer(8);
        value.appendTimezone(sbz);
        return sbz.toString();
    }

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        // for example "\", must be %-encoded.
        if (allAllowedAscii(s)) {
            // it's worth doing a prescan to avoid the cost of copying in the common all-ASCII case
            return s;
        }
        FastStringBuffer sb = new FastStringBuffer(s.length()+20);
        for (int i=0; i<s.length(); i++) {
            final char c = s.charAt(i);
            if (c>=0x7f || !allowedASCII[(int)c]) {
                escapeChar(c, ((i+1)<s.length() ? s.charAt(i+1) : ' '), sb);
            } else {
                sb.append(c);
            }
        }
        return sb;
    }

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     * should NOT be %HH-encoded
     * @return the %HH-encoded string
     */


    public static CharSequence escape(CharSequence s, String allowedPunctuation) {
        FastStringBuffer sb = new FastStringBuffer(s.length());
        for (int i=0; i<s.length(); i++) {
            char c = s.charAt(i);
            if ((c>='a' && c<='z') || (c>='A' && c<='Z') || (c>='0' && c<='9')) {
                sb.append(c);
            } else if (c<=0x20 || c>=0x7f) {
                escapeChar(c, ((i+1)<s.length() ? s.charAt(i+1) : ' '), sb);
            } else if (allowedPunctuation.indexOf(c) >= 0) {
                sb.append(c);
            } else {
                escapeChar(c, ' ', sb);
            }


        }

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    public static CharSequence applyWhitespaceNormalization(int action, CharSequence value) {
        switch (action) {
            case PRESERVE:
                return value;
            case REPLACE:
                FastStringBuffer sb = new FastStringBuffer(value.length());
                for (int i=0; i<value.length(); i++) {
                    char c = value.charAt(i);
                    switch (c) {
                        case '\n':
                        case '\r':
                        case '\t':
                            sb.append(' ');
                            break;
                        default:
                            sb.append(c);
                    }
                }
                return sb;
            case COLLAPSE:
                return collapseWhitespace(value);

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     * if it contained no whitespace
     */


    public static CharSequence removeAllWhitespace(CharSequence value) {
        if (containsWhitespace(value)) {
            FastStringBuffer sb = new FastStringBuffer(value.length());
            for (int i=0; i<value.length(); i++) {
                char c = value.charAt(i);
                if (c > 32 || !C0WHITE[c]) {
                    sb.append(c);
                }
            }
            return sb;
        } else {
            return value;

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     * @return a copy of the string in which any whitespace character is replaced by
     * a single space character
    */


    public static CharSequence normalizeWhitespace(CharSequence in) {
        FastStringBuffer sb = new FastStringBuffer(in.length());
        for (int i=0; i<in.length(); i++) {
            char c = in.charAt(i);
            switch (c) {
                case '\n':
                case '\r':
                case '\t':
                    sb.append(' ');
                    break;
                default:
                    sb.append(c);
                    break;
            }
        }
        return sb;
    }

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