Example usage for org.apache.commons.lang3.text StrBuilder indexOf

Introduction

In this page you can find the example usage for org.apache.commons.lang3.text StrBuilder indexOf.

Prototype

public int indexOf(final StrMatcher matcher) 

Source Link

Document

Searches the string builder using the matcher to find the first match.

Usage

From source file:de.vandermeer.skb.interfaces.transformers.textformat.Text_To_WrappedFormat.java

@Override
default Pair<ArrayList<String>, ArrayList<String>> transform(String input) {
    Validate.notBlank(input);//from ww w .ja  va  2s  .c om
    Validate.isTrue(this.getWidth() > 0);

    ArrayList<String> topList = new ArrayList<>();
    ArrayList<String> bottomList = new ArrayList<>();

    //an emergency break, counting loops to avoid endless loops
    int count;

    String text = StringUtils.replacePattern(input, "\\r\\n|\\r|\\n", LINEBREAK);
    text = StringUtils.replace(text, "<br>", LINEBREAK);
    text = StringUtils.replace(text, "<br/>", LINEBREAK);

    StrBuilder sb = new StrBuilder(text);
    if (this.getTopSettings() != null) {
        //we have a top request, do that one first
        Validate.notNull(this.getTopSettings().getLeft());
        Validate.notNull(this.getTopSettings().getRight());
        Validate.isTrue(this.getTopSettings().getLeft() > 0);
        Validate.isTrue(this.getTopSettings().getRight() > 0);

        int topLines = this.getTopSettings().getLeft();
        int topWidth = this.getTopSettings().getRight();
        count = 0;

        while (sb.size() > 0 && topLines > 0 && count++ < 200) {
            if (sb.startsWith(LINEBREAK)) {
                sb.replaceFirst(LINEBREAK, "");
            }
            String s = null;
            boolean wln = false;
            if (sb.indexOf(LINEBREAK) > 0) {
                s = sb.substring(0, sb.indexOf(LINEBREAK));
                wln = true;
                //sb.replace(0, sb.indexOf(LINEBREAK) + LINEBREAK.length(), "");
            } else {
                s = sb.toString();
                //sb.clear();
            }
            String wrap = WordUtils.wrap(s, topWidth, LINEBREAK, true);
            StrTokenizer tok = new StrTokenizer(wrap, LINEBREAK).setIgnoreEmptyTokens(false);
            String[] ar = tok.getTokenArray();
            if (ar.length <= topLines) {
                //all lines done, cleanup
                for (String str : ar) {
                    topList.add(str.trim());
                }
                if (wln == true) {
                    //if we had a conditional linebreak there might be more text, remove the line we processed
                    sb.replace(0, sb.indexOf(LINEBREAK) + LINEBREAK.length(), "");
                } else {
                    //no conditional line break, clean builder
                    sb.clear();
                }
                topLines = 0;
            } else {
                //we have more lines than we need, so remove the text we have from the builder and copy processed lines
                StrBuilder replace = new StrBuilder();
                for (int i = 0; i < topLines; i++) {
                    topList.add(ar[i].trim());
                    replace.appendSeparator(' ').append(ar[i]);
                }
                if (wln == true) {
                    replace.append(LINEBREAK);
                }
                sb.replaceFirst(replace.toString(), "");
                topLines = 0;
            }
        }
    }

    //no top, simple wrapping with recognition of conditional line breaks
    count = 0;
    while (sb.size() > 0 && count++ < 200) {
        if (sb.startsWith(LINEBREAK)) {
            sb.replaceFirst(LINEBREAK, "");
        }
        String s = null;
        if (sb.indexOf(LINEBREAK) > 0) {
            s = sb.substring(0, sb.indexOf(LINEBREAK));
            sb.replace(0, sb.indexOf(LINEBREAK) + LINEBREAK.length(), "");
        } else {
            s = sb.toString();
            sb.clear();
        }
        s = WordUtils.wrap(s, this.getWidth(), LINEBREAK, true);
        StrTokenizer tok = new StrTokenizer(s, LINEBREAK).setIgnoreEmptyTokens(false);
        for (String str : tok.getTokenArray()) {
            bottomList.add(str.trim());
        }
    }

    return Pair.of(topList, bottomList);
}

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