Example usage for java.text BreakIterator last

Introduction

In this page you can find the example usage for java.text BreakIterator last.

Prototype

public abstract int last();

Source Link

Document

Returns the last boundary.

Usage

From source file:StringUtils.java

/**
 * Reformats a string where lines that are longer than <tt>width</tt>
 * are split apart at the earliest wordbreak or at maxLength, whichever is
 * sooner. If the width specified is less than 5 or greater than the input
 * Strings length the string will be returned as is.
 * <p/>/*w  w  w.j  ava2s . co  m*/
 * Please note that this method can be lossy - trailing spaces on wrapped
 * lines may be trimmed.
 *
 * @param input the String to reformat.
 * @param width the maximum length of any one line.
 * @return a new String with reformatted as needed.
 */
public static String wordWrap(String input, int width, Locale locale) {
    // protect ourselves
    if (input == null) {
        return "";
    } else if (width < 5) {
        return input;
    } else if (width >= input.length()) {
        return input;
    }

    StringBuilder buf = new StringBuilder(input);
    boolean endOfLine = false;
    int lineStart = 0;

    for (int i = 0; i < buf.length(); i++) {
        if (buf.charAt(i) == '\n') {
            lineStart = i + 1;
            endOfLine = true;
        }

        // handle splitting at width character
        if (i > lineStart + width - 1) {
            if (!endOfLine) {
                int limit = i - lineStart - 1;
                BreakIterator breaks = BreakIterator.getLineInstance(locale);
                breaks.setText(buf.substring(lineStart, i));
                int end = breaks.last();

                // if the last character in the search string isn't a space,
                // we can't split on it (looks bad). Search for a previous
                // break character
                if (end == limit + 1) {
                    if (!Character.isWhitespace(buf.charAt(lineStart + end))) {
                        end = breaks.preceding(end - 1);
                    }
                }

                // if the last character is a space, replace it with a \n
                if (end != BreakIterator.DONE && end == limit + 1) {
                    buf.replace(lineStart + end, lineStart + end + 1, "\n");
                    lineStart = lineStart + end;
                }
                // otherwise, just insert a \n
                else if (end != BreakIterator.DONE && end != 0) {
                    buf.insert(lineStart + end, '\n');
                    lineStart = lineStart + end + 1;
                } else {
                    buf.insert(i, '\n');
                    lineStart = i + 1;
                }
            } else {
                buf.insert(i, '\n');
                lineStart = i + 1;
                endOfLine = false;
            }
        }
    }

    return buf.toString();
}

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From source file:org.jivesoftware.community.util.StringUtils.java

public static String wordWrap(String input, int width, Locale locale) {
    if (input == null)
        return "";
    if (width < 5)
        return input;
    if (width >= input.length())
        return input;
    if (locale == null)
        locale = JiveGlobals.getLocale();
    StringBuffer buf = new StringBuffer(input);
    boolean endOfLine = false;
    int lineStart = 0;
    for (int i = 0; i < buf.length(); i++) {
        if (buf.charAt(i) == '\n') {
            lineStart = i + 1;/*from   www . j a v  a 2  s.  com*/
            endOfLine = true;
        }
        if (i <= (lineStart + width) - 1)
            continue;
        if (!endOfLine) {
            int limit = i - lineStart - 1;
            BreakIterator breaks = BreakIterator.getLineInstance(locale);
            breaks.setText(buf.substring(lineStart, i));
            int end = breaks.last();
            if (end == limit + 1 && !Character.isWhitespace(buf.charAt(lineStart + end)))
                end = breaks.preceding(end - 1);
            if (end != -1 && end == limit + 1) {
                buf.replace(lineStart + end, lineStart + end + 1, "\n");
                lineStart += end;
                continue;
            }
            if (end != -1 && end != 0) {
                buf.insert(lineStart + end, '\n');
                lineStart = lineStart + end + 1;
            } else {
                buf.insert(i, '\n');
                lineStart = i + 1;
            }
        } else {
            buf.insert(i, '\n');
            lineStart = i + 1;
            endOfLine = false;
        }
    }

    return buf.toString();
}

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From source file:org.jivesoftware.util.StringUtils.java

/**
 * Reformats a string where lines that are longer than <tt>width</tt>
 * are split apart at the earliest wordbreak or at maxLength, whichever is
 * sooner. If the width specified is less than 5 or greater than the input
 * Strings length the string will be returned as is.
 * <p>//from  w ww.java2 s. c om
 * Please note that this method can be lossy - trailing spaces on wrapped
 * lines may be trimmed.</p>
 *
 * @param input the String to reformat.
 * @param width the maximum length of any one line.
 * @return a new String with reformatted as needed.
 */
public static String wordWrap(String input, int width, Locale locale) {
    // protect ourselves
    if (input == null) {
        return "";
    } else if (width < 5) {
        return input;
    } else if (width >= input.length()) {
        return input;
    }

    // default locale
    if (locale == null) {
        locale = JiveGlobals.getLocale();
    }

    StringBuilder buf = new StringBuilder(input);
    boolean endOfLine = false;
    int lineStart = 0;

    for (int i = 0; i < buf.length(); i++) {
        if (buf.charAt(i) == '\n') {
            lineStart = i + 1;
            endOfLine = true;
        }

        // handle splitting at width character
        if (i > lineStart + width - 1) {
            if (!endOfLine) {
                int limit = i - lineStart - 1;
                BreakIterator breaks = BreakIterator.getLineInstance(locale);
                breaks.setText(buf.substring(lineStart, i));
                int end = breaks.last();

                // if the last character in the search string isn't a space,
                // we can't split on it (looks bad). Search for a previous
                // break character
                if (end == limit + 1) {
                    if (!Character.isWhitespace(buf.charAt(lineStart + end))) {
                        end = breaks.preceding(end - 1);
                    }
                }

                // if the last character is a space, replace it with a \n
                if (end != BreakIterator.DONE && end == limit + 1) {
                    buf.replace(lineStart + end, lineStart + end + 1, "\n");
                    lineStart = lineStart + end;
                }
                // otherwise, just insert a \n
                else if (end != BreakIterator.DONE && end != 0) {
                    buf.insert(lineStart + end, '\n');
                    lineStart = lineStart + end + 1;
                } else {
                    buf.insert(i, '\n');
                    lineStart = i + 1;
                }
            } else {
                buf.insert(i, '\n');
                lineStart = i + 1;
                endOfLine = false;
            }
        }
    }

    return buf.toString();
}

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