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annotate src/org/nwoca/ssdt/tools/html2wiki/ReflowTransformer.java @ 12:c1d94c623854

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author ferrall@nwoca.org
date Fri, 28 Jan 2011 14:12:34 -0500
parents 99f293bd507f
children
rev   line source
6
99f293bd507f Add "reflow" transformer to reflow paragraphs, list items, etc.
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1 package org.nwoca.ssdt.tools.html2wiki;
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2
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3 import java.util.regex.*;
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4
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5 class ReflowTransformer implements Transformer {
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7 private Pattern[] patterns = {
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8 Pattern.compile("(\\n<p>)(.*?)(\\n\\n|\\n<)", Pattern.MULTILINE + Pattern.DOTALL)};
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9
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10 /**
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11 * Default transformer refolows paragraphs, li's and td's.
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12 *
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13 */
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14 public ReflowTransformer() {
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15 }
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16
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17 /**
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18 * Create transformer with specific regexp.
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19 *
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20 * Regexp must provide three groups: (before)(textToReflow)(after).
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21 *
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22 * @param regexp
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23 */
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24 public ReflowTransformer(String regexp) {
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25 patterns = new Pattern[]{
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26 Pattern.compile(regexp, Pattern.MULTILINE + Pattern.DOTALL)
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27 };
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28 }
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29
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30 public void apply(StringBuffer buffer) {
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31 for (Pattern pattern : patterns) {
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32
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33 System.out.println(" Reflowing: " + pattern);
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34 Matcher matcher = pattern.matcher(buffer);
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35
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36 int start = 0;
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37 while (matcher.find(start)) {
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38 String temp = matcher.group(2);
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39 temp = temp.replaceAll(" \\n", " ");
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40 buffer.replace(matcher.start(), matcher.end(), matcher.group(1) + temp + matcher.group(3));
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41 start = matcher.start() + matcher.group(1).length() + temp.length() + matcher.group(3).length() - 1;
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42 }
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43 }
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44
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45 }
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46
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47 public String toString() {
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48 return "Reflowing block tags";
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49 }
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50 }