// wikiCode.java
// -------------------------------------
// part of YACY
//
// (C) 2005, 2006 by Alexander Schier, Marc Nause, Franz Brausze
//
// $LastChangedDate$
// $LastChangedRevision$
// $LastChangedBy$
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package de.anomic.data.wiki;
import java.io.BufferedReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import de.anomic.htmlFilter.htmlFilterCharacterCoding;
import de.anomic.server.serverCore;
/** This class provides methods to handle texts that have been posted in the yacyWiki or other
* parts of YaCy that use this class, like the blog or the profile.
*
* @author Alexander Schier [AS], Franz Brausze [FB], Marc Nause [MN]
*/
public class wikiCode extends abstractWikiParser implements wikiParser {
/* Table properties */
private static final String[] tps = {"rowspan", "colspan", "vspace", "hspace", "cellspacing", "cellpadding", "border"};
private static final Map<String, String[]> ps = new HashMap<String, String[]>();
/* possible tags for headlines */
private static final String[] headlineTags = new String[]{"====", "===", "=="};
static {
/* Arrays must be sorted since Array.searchBinary() is used later. For more info see:
* http://java.sun.com/javase/6/docs/api/java/util/Arrays.html#binarySearch(T[], T, java.util.Comparator)
*/
Arrays.sort(headlineTags);
Arrays.sort(tps);
String[] array;
Arrays.sort(array = new String[]{"void", "above", "below", "hsides", "lhs", "rhs", "vsides", "box", "border"});
ps.put("frame", array);
Arrays.sort(array = new String[]{"none", "groups", "rows", "cols", "all"});
ps.put("rules", array);
Arrays.sort(array = new String[]{"top", "middle", "bottom", "baseline"});
ps.put("valign", array);
Arrays.sort(array = new String[]{"left", "right", "center"});
ps.put("align", array);
}
private String numListLevel = "";
private String ListLevel = "";
private String defListLevel = "";
private boolean cellprocessing = false; //needed for prevention of double-execution of replaceHTML
private boolean defList = false; //needed for definition lists
private boolean escape = false; //needed for escape
private boolean escaped = false; //needed for <pre> not getting in the way
private boolean newrowstart = false; //needed for the first row not to be empty
private boolean nolist = false; //needed for handling of [= and <pre> in lists
private boolean preformatted = false; //needed for preformatted text
private boolean preformattedSpan = false; //needed for <pre> and </pre> spanning over several lines
private boolean replacedHTML = false; //indicates if method replaceHTML has been used with line already
private boolean table = false; //needed for tables, because they reach over several lines
private int preindented = 0; //needed for indented <pre>s
private final List<String> dirElements = new ArrayList<String>(); //list of headlines used to create diectory of page
/** Constructor of the class wikiCode */
public wikiCode(String address) {
super(address);
}
protected String transform(
final BufferedReader reader,
final int length) throws IOException {
final StringBuilder out = new StringBuilder(length);
String line;
while ((line = reader.readLine()) != null) {
out.append(transformLine(line)).append(serverCore.CRLF_STRING);
}
return out.insert(0, directory()).toString();
}
/**
* Processes tables in the wiki code.
* @param input String which might or might not contain parts of a table.
* @return String with wiki code of parts of table replaced by HTML code for table.
*/
//[FB], changes by [MN]
private String processTable(final String input) {
//some variables that make it easier to change codes for the table
String line = "";
final String tableStart = "{|"; // {|
final String newLine = "|-"; // |-
final String cellDivider = "||"; // ||
final String tableEnd = "|}"; // |}
final String attribDivider = "|"; // |
final int lenTableStart = tableStart.length();
final int lenCellDivider = cellDivider.length();
final int lenTableEnd = tableEnd.length();
final int lenAttribDivider = attribDivider.length();
if ((input.startsWith(tableStart)) && (!table)) {
table = true;
newrowstart = true;
line = "<table";
if (input.trim().length() > lenTableStart) {
line += parseTableProperties(input.substring(lenTableStart).trim()).toString();
}
line += ">";
} else if (input.startsWith(newLine) && (table)) { // new row
if (!newrowstart) {
line += "\t</tr>\n";
} else {
newrowstart = false;
}
line = line + "\t<tr>";
} else if ((input.startsWith(cellDivider)) && (table)) {
line += "\t\t<td";
final int cellEnd = (input.indexOf(cellDivider, lenCellDivider) > 0) ? (input.indexOf(cellDivider, lenCellDivider)) : (input.length());
int propEnd = input.indexOf(attribDivider, lenCellDivider);
final int occImage = input.indexOf("[[Image:", lenCellDivider);
final int occEscape = input.indexOf("[=", lenCellDivider);
//If resultOf("[[Image:") is less than propEnd, that means that there is no
//property for this cell, only an image. Without this, YaCy could get confused
//by a | in [[Image:picture.png|alt-text]] or [[Image:picture.png|alt-text]]
//Same for [= (part of [= =])
if ((propEnd > lenCellDivider) && ((occImage > propEnd) || (occImage < 0)) && ((occEscape > propEnd) || (occEscape < 0))) {
propEnd = input.indexOf(attribDivider, lenCellDivider) + lenAttribDivider;
} else {
propEnd = cellEnd;
}
// both point at same place => new line
if (propEnd == cellEnd) {
propEnd = lenCellDivider;
} else {
line += parseTableProperties(input.substring(lenCellDivider, propEnd - lenAttribDivider).trim()).toString();
}
// quick&dirty fix [MN]
if (propEnd > cellEnd) {
propEnd = lenCellDivider;
}
table = false;
cellprocessing = true;
line += ">" + processTable(input.substring(propEnd, cellEnd).trim()) + "</td>";
table = true;
cellprocessing = false;
if (cellEnd < input.length()) {
line += "\n" + processTable(input.substring(cellEnd));
}
} else if (input.startsWith(tableEnd) && (table)) { // Table end
table = false;
line += "\t</tr>\n</table>" + input.substring(lenTableEnd);
} else {
line = input;
}
return line;
}
// contributed by [MN], changes by [FB]
/** This method takes possible table properties and tests if they are valid.
* Valid in this case means if they are a property for the table, tr or td
* tag as stated in the HTML Pocket Reference by Jennifer Niederst (1st edition)
* The method is important to avoid XSS attacks on the wiki via table properties.
* @param properties A string that may contain several table properties and/or junk.
* @return A string that only contains table properties.
*/
private StringBuilder parseTableProperties(final String properties) {
final String[] values = properties.replaceAll(""", "").split("[= ]"); //splitting the string at = and blanks
final StringBuilder sb = new StringBuilder(properties.length());
String key, value;
String[] posVals;
final int numberofvalues = values.length;
for (int i = 0; i < numberofvalues; i++) {
key = values[i].trim();
if (key.equals("nowrap")) {
addPair("nowrap", "nowrap", sb);
} else if (i + 1 < numberofvalues) {
value = values[++i].trim();
if ((key.equals("summary")) ||
(key.equals("bgcolor") && value.matches("#{0,1}[0-9a-fA-F]{1,6}|[a-zA-Z]{3,}")) ||
((key.equals("width") || key.equals("height")) && value.matches("\\d+%{0,1}")) ||
((posVals = ps.get(key)) != null && Arrays.binarySearch(posVals, value) >= 0) ||
(Arrays.binarySearch(tps, key) >= 0 && value.matches("\\d+"))) {
addPair(key, value, sb);
}
}
}
return sb;
}
private StringBuilder addPair(final String key, final String value, final StringBuilder sb) {
return sb.append(" ").append(key).append("=\"").append(value).append("\"");
}
/** This method processes ordered lists.
*/
private String orderedList(String result) {
if (!nolist) { //lists only get processed if not forbidden (see code for [= and <pre>). [MN]
int p0 = 0;
int p1 = 0;
//# sorted Lists contributed by [AS]
//## Sublist
if (result.startsWith(numListLevel + "#")) { //more #
p0 = result.indexOf(numListLevel);
p1 = result.length();
result = "<ol>" + serverCore.CRLF_STRING +
"<li>" +
result.substring(numListLevel.length() + 1, p1) +
"</li>";
numListLevel += "#";
} else if (numListLevel.length() > 0 && result.startsWith(numListLevel)) { //equal number of #
p0 = result.indexOf(numListLevel);
p1 = result.length();
result = "<li>" +
result.substring(numListLevel.length(), p1) +
"</li>";
} else if (numListLevel.length() > 0) { //less #
int i = numListLevel.length();
String tmp = "";
while (!result.startsWith(numListLevel.substring(0, i))) {
tmp += "</ol>";
i--;
}
numListLevel = numListLevel.substring(0, i);
p0 = numListLevel.length();
p1 = result.length();
if (numListLevel.length() > 0) {
result = tmp +
"<li>" +
result.substring(p0, p1) +
"</li>";
} else {
result = tmp + result.substring(p0, p1);
}
}
// end contrib [AS]
}
return result;
}
/** This method processes unordered lists.
*/
//contributed by [AS] put into it's own method by [MN]
private String unorderedList(String result) {
if (!nolist) { //lists only get processed if not forbidden (see code for [= and <pre>). [MN]
int p0 = 0;
int p1 = 0;
//contributed by [AS]
if (result.startsWith(ListLevel + "*")) { //more stars
p0 = result.indexOf(ListLevel);
p1 = result.length();
result = "<ul>" + serverCore.CRLF_STRING +
"<li>" +
result.substring(ListLevel.length() + 1, p1) +
"</li>";
ListLevel += "*";
} else if (ListLevel.length() > 0 && result.startsWith(ListLevel)) { //equal number of stars
p0 = result.indexOf(ListLevel);
p1 = result.length();
result = "<li>" +
result.substring(ListLevel.length(), p1) +
"</li>";
} else if (ListLevel.length() > 0) { //less stars
int i = ListLevel.length();
String tmp = "";
while (ListLevel.length() >= i && !result.startsWith(ListLevel.substring(0, i))) {
tmp += "</ul>";
i--;
}
p0 = ListLevel.length();
if (i < p0) {
ListLevel = ListLevel.substring(0, i);
p0 = ListLevel.length();
}
p1 = result.length();
if (ListLevel.length() > 0) {
result = tmp +
"<li>" +
result.substring(p0, p1) +
"</li>";
} else {
result = tmp + result.substring(p0, p1);
}
}
//end contrib [AS]
}
return result;
}
/** This method processes definition lists.
*/
//contributed by [MN] based on unordered list code by [AS]
private String definitionList(String result) {
if (!nolist) { //lists only get processed if not forbidden (see code for [= and <pre>). [MN]
int p0 = 0;
int p1 = 0;
if (result.startsWith(defListLevel + ";")) { //more semicolons
String dt = "";
String dd = "";
p0 = result.indexOf(defListLevel);
p1 = result.length();
final String resultCopy = result.substring(defListLevel.length() + 1, p1);
if ((p0 = resultCopy.indexOf(":")) > 0) {
dt = resultCopy.substring(0, p0);
dd = resultCopy.substring(p0 + 1);
result = "<dl>" + "<dt>" + dt + "</dt>" + "<dd>" + dd;
defList = true;
}
defListLevel += ";";
} else if (defListLevel.length() > 0 && result.startsWith(defListLevel)) { //equal number of semicolons
String dt = "";
String dd = "";
p0 = result.indexOf(defListLevel);
p1 = result.length();
final String resultCopy = result.substring(defListLevel.length(), p1);
if ((p0 = resultCopy.indexOf(":")) > 0) {
dt = resultCopy.substring(0, p0);
dd = resultCopy.substring(p0 + 1);
result = "<dt>" + dt + "</dt>" + "<dd>" + dd;
defList = true;
}
} else if (defListLevel.length() > 0) { //less semicolons
String dt = "";
String dd = "";
int i = defListLevel.length();
String tmp = "";
while (!result.startsWith(defListLevel.substring(0, i))) {
tmp += "</dd></dl>";
i--;
}
defListLevel = defListLevel.substring(0, i);
p0 = defListLevel.length();
p1 = result.length();
if (defListLevel.length() > 0) {
final String resultCopy = result.substring(p0, p1);
if ((p0 = resultCopy.indexOf(":")) > 0) {
dt = resultCopy.substring(0, p0);
dd = resultCopy.substring(p0 + 1);
result = tmp + "<dt>" + dt + "</dt>" + "<dd>" + dd;
defList = true;
}
} else {
result = tmp + result.substring(p0, p1);
}
}
}
return result;
}
/** This method processes links and images.
*/
//contributed by [AS] except where stated otherwise
private String linksAndImages(String result) {
// create links
String kl, kv, alt, align;
int p;
int p0 = 0;
int p1 = 0;
// internal links and images
while ((p0 = result.indexOf("[[")) >= 0) {
p1 = result.indexOf("]]", p0 + 2);
if (p1 <= p0) {
break;
}
kl = result.substring(p0 + 2, p1);
// this is the part of the code that's responsible for images
// contributed by [MN]
if (kl.startsWith("Image:")) {
alt = "";
align = "";
kv = "";
kl = kl.substring(6);
// are there any arguments for the image?
if ((p = kl.indexOf("|")) > 0) {
kv = kl.substring(p + 6);
kl = kl.substring(0, p);
// if there are 2 arguments, write them into ALIGN and ALT
if ((p = kv.indexOf("|")) > 0) {
align = kv.substring(0, p);
//checking validity of value for align. Only non browser specific
//values get supported. Not supported: absmiddle, baseline, texttop
if ((align.equals("bottom")) ||
(align.equals("center")) ||
(align.equals("left")) ||
(align.equals("middle")) ||
(align.equals("right")) ||
(align.equals("top"))) {
align = " align=\"" + align + "\"";
} else {
align = "";
}
alt = " alt=\"" + kv.substring(p + 6) + "\"";
} // if there is just one, put it into ALT
else {
alt = " alt=\"" + kv + "\"";
}
}
// replace incomplete URLs and make them point to http://peerip:port/...
// with this feature you can access an image in DATA/HTDOCS/share/yacy.gif
// using the wikicode [[Image:share/yacy.gif]]
// or an image DATA/HTDOCS/grafics/kaskelix.jpg with [[Image:grafics/kaskelix.jpg]]
// you are free to use other sub-paths of DATA/HTDOCS
if (kl.indexOf("://") < 1) {
kl = "http://" + super.address + "/" + kl;
}
result = result.substring(0, p0) + "<img src=\"" + kl + "\"" + align + alt + ">" + result.substring(p1 + 2);
} // end contrib [MN]
// if it's no image, it might be an internal link
else {
if ((p = kl.indexOf("|")) > 0) {
kv = kl.substring(p + 6);
kl = kl.substring(0, p);
} else {
kv = kl;
}
result = result.substring(0, p0) + "<a class=\"known\" href=\"Wiki.html?page=" + kl + "\">" + kv + "</a>" + result.substring(p1 + 2); // oob exception in append() !
}
}
// external links
while ((p0 = result.indexOf("[")) >= 0) {
p1 = result.indexOf("]", p0 + 1);
if (p1 <= p0) {
break;
}
kl = result.substring(p0 + 1, p1);
if ((p = kl.indexOf(" ")) > 0) {
kv = kl.substring(p + 1);
kl = kl.substring(0, p);
} // No text for the link? -> <a href="http://www.url.com/">http://www.url.com/</a>
else {
kv = kl;
}
// replace incomplete URLs and make them point to http://peerip:port/...
// with this feature you can access a file at DATA/HTDOCS/share/page.html
// using the wikicode [share/page.html]
// or a file DATA/HTDOCS/www/page.html with [www/page.html]
// you are free to use other sub-paths of DATA/HTDOCS
if (kl.indexOf("://") < 1) {
kl = "http://" + super.address + "/" + kl;
}
result = result.substring(0, p0) + "<a class=\"extern\" href=\"" + kl + "\">" + kv + "</a>" + result.substring(p1 + 1);
}
return result;
}
/** This method handles the preformatted tags <pre> </pre> */
//contributed by [MN]
private String preformattedTag(String result) {
int p0 = 0;
int p1 = 0;
//both <pre> and </pre> in the same line
if (((p0 = result.indexOf("<pre>")) >= 0) && ((p1 = result.indexOf("</pre>")) > 0) && (!(escaped))) {
if (p0 < p1) {
String preformattedText = "<pre style=\"border:dotted;border-width:thin\">" + result.substring(p0 + 11, p1) + "</pre>";
preformattedText = preformattedText.replaceAll("!pre!", "!pre!!");
result = transformLine(result.substring(0, p0).replaceAll("!pre!", "!pre!!") + "!pre!txt!" + result.substring(p1 + 12).replaceAll("!pre!", "!pre!!"));
result = result.replaceAll("!pre!txt!", preformattedText);
result = result.replaceAll("!pre!!", "!pre!");
} //handles cases like <pre><pre> </pre></pre> <pre> </pre> that would cause an exception otherwise
else {
preformatted = true;
final String temp1 = transformLine(result.substring(0, p0 - 1).replaceAll("!tmp!", "!tmp!!") + "!tmp!txt!");
nolist = true;
final String temp2 = transformLine(result.substring(p0));
nolist = false;
result = temp1.replaceAll("!tmp!txt!", temp2);
result = result.replaceAll("!tmp!!", "!tmp!");
preformatted = false;
}
} //start <pre>
else if (((p0 = result.indexOf("<pre>")) >= 0) && (!preformattedSpan) && (!escaped)) {
preformatted = true; //prevent surplus line breaks
String bq = ""; //gets filled with <blockquote>s as needed
String preformattedText = "<pre style=\"border:dotted;border-width:thin\">" + result.substring(p0 + 11);
preformattedText = preformattedText.replaceAll("!pre!", "!pre!!");
//taking care of indented lines
while (result.substring(preindented, p0).startsWith(":")) {
preindented++;
bq = bq + "<blockquote>";
}
result = transformLine(result.substring(preindented, p0).replaceAll("!pre!", "!pre!!") + "!pre!txt!");
result = bq + result.replaceAll("!pre!txt!", preformattedText);
result = result.replaceAll("!pre!!", "!pre!");
preformattedSpan = true;
} //end </pre>
else if (((p0 = result.indexOf("</pre>")) >= 0) && (preformattedSpan) && (!escaped)) {
preformattedSpan = false;
String bq = ""; //gets filled with </blockquote>s as needed
String preformattedText = result.substring(0, p0) + "</pre>";
preformattedText = preformattedText.replaceAll("!pre!", "!pre!!");
//taking care of indented lines
while (preindented > 0) {
bq = bq + "</blockquote>";
preindented--;
}
result = transformLine("!pre!txt!" + result.substring(p0 + 12).replaceAll("!pre!", "!pre!!"));
result = result.replaceAll("!pre!txt!", preformattedText) + bq;
result = result.replaceAll("!pre!!", "!pre!");
preformatted = false;
} //Getting rid of surplus </pre>
else if (((p0 = result.indexOf("</pre>")) >= 0) && (!preformattedSpan) && (!escaped)) {
while ((p0 = result.indexOf("</pre>")) >= 0) {
result = result.substring(0, p0) + result.substring(p0 + 12);
}
result = transformLine(result);
}
return result;
}
/** This method creates a directory for a wiki page.
* @return directory of the wiki
*/
//method contributed by [MN]
private StringBuilder directory() {
StringBuilder directory = new StringBuilder();
String element;
int s = 0;
int level = 1;
int level1 = 0;
int level2 = 0;
int level3 = 0;
int doubles = 0;
String anchorext = "";
if ((s = dirElements.size()) > 2) {
directory.append("<table><tr><td><div class=\"WikiTOCBox\">\n");
for (int i = 0; i < s; i++) {
if (i >= dirElements.size()) {
break;
}
element = dirElements.get(i);
if (element == null) continue;
//counting double headlines
doubles = 0;
for (int j = 0; j < i; j++) {
if (j >= dirElements.size()) {
break;
}
String d = dirElements.get(j);
if (d == null || d.length() < 1) {
continue;
}
String a = d.substring(1).replaceAll(" ", "_").replaceAll("[^a-zA-Z0-9_]", "");
String b = element.substring(1).replaceAll(" ", "_").replaceAll("[^a-zA-Z0-9_]", "");
if (a.equals(b)) {
doubles++;
}
}
//if there are doubles, create anchorextension
if (doubles > 0) {
anchorext = "_" + (doubles + 1);
}
if (element.startsWith("3")) {
if (level < 3) {
level = 3;
level3 = 0;
}
level3++;
final String temp = element.substring(1);
element = level1 + "." + level2 + "." + level3 + " " + temp;
directory.append(" <a href=\"#");
directory.append(temp.replaceAll(" ", "_").replaceAll("[^a-zA-Z0-9_]", ""));
directory.append(anchorext);
directory.append("\" class=\"WikiTOC\">");
directory.append(element);
directory.append("</a><br />\n");
} else if (element.startsWith("2")) {
if (level == 1) {
level2 = 0;
level = 2;
}
if (level == 3) {
level = 2;
}
level2++;
final String temp = element.substring(1);
element = level1 + "." + level2 + " " + temp;
directory.append(" <a href=\"#");
directory.append(temp.replaceAll(" ", "_").replaceAll("[^a-zA-Z0-9_]", ""));
directory.append(anchorext);
directory.append("\" class=\"WikiTOC\">");
directory.append(element);
directory.append("</a><br />\n");
} else if (element.startsWith("1")) {
if (level > 1) {
level = 1;
level2 = 0;
level3 = 0;
}
level1++;
final String temp = element.substring(1);
element = level1 + ". " + temp;
directory.append("<a href=\"#");
directory.append(temp.replaceAll(" ", "_").replaceAll("[^a-zA-Z0-9_]", ""));
directory.append(anchorext + "\" class=\"WikiTOC\">");
directory.append(element);
directory.append("</a><br />\n");
}
anchorext = "";
}
directory.append("</div></td></tr></table>\n");
}
if (!dirElements.isEmpty()) {
dirElements.clear();
}
return directory;
}
/** Replaces two occurences of a substring in a string by a pair of strings if
* that substring occurs twice in the string. This method is not greedy! You'll
* have to run it in a loop if you want to replace all occurences of the substring.
* This method provides special treatment for headlines.
* @param input the string that something is to be replaced in
* @param pat substring to be replaced
* @param repl1 string substring gets replaced by on uneven occurences
* @param repl2 string substring gets replaced by on even occurences
*/
//[MN]
private String pairReplace(String input, final String pat, final String repl1, final String repl2) {
String direlem = null; //string to keep headlines until they get added to List dirElements
int p0 = 0;
int p1 = 0;
final int l = pat.length();
//replace pattern if a pair of the pattern can be found in the line
if (((p0 = input.indexOf(pat)) >= 0) && ((p1 = input.indexOf(pat, p0 + l)) >= 0)) {
//extra treatment for headlines
if (Arrays.binarySearch(headlineTags, pat) >= 0) {
//add anchor and create headline
direlem = input.substring(p0 + l, p1);
if (direlem != null) {
//counting double headlines
int doubles = 0;
for (int i = 0; i < dirElements.size(); i++) {
// no element with null value should ever be in directory
assert (dirElements.get(i) != null);
if (dirElements.size() > i && dirElements.get(i).substring(1).equals(direlem)) {
doubles++;
}
}
String anchor = direlem.replaceAll(" ", "_").replaceAll("[^a-zA-Z0-9_]", ""); //replace blanks with underscores and delete everything thats not a regular character, a number or _
//if there are doubles, add underscore and number of doubles plus one
if (doubles > 0) {
anchor = anchor + "_" + (doubles + 1);
}
input = input.substring(0, p0) + "<a name=\"" + anchor + "\"></a>" + repl1 +
direlem + repl2 + input.substring(p1 + l);
//add headlines to list of headlines (so TOC can be created)
if (Arrays.binarySearch(headlineTags, pat) >= 0) {
dirElements.add((pat.length() - 1) + direlem);
}
}
} else {
input = input.substring(0, p0) + repl1 +
(input.substring(p0 + l, p1)) + repl2 +
input.substring(p1 + l);
}
}
//recursion if a pair of the pattern can still be found in the line
if (((p0 = input.indexOf(pat)) >= 0) && (input.indexOf(pat, p0 + l) >= 0)) {
input = pairReplace(input, pat, repl1, repl2);
}
return input;
}
/** Replaces wiki tags with HTML tags.
* @param result a line of text
* @return the line of text with HTML tags instead of wiki tags
*/
public String transformLine(String result) {
//If HTML has not bee replaced yet (can happen if method gets called in recursion), replace now!
if (!replacedHTML || preformattedSpan) {
result = htmlFilterCharacterCoding.unicode2html(result, true);
replacedHTML = true;
}
//check if line contains preformatted symbols or if we are in a preformatted sequence already.
if ((result.indexOf("<pre>") >= 0) || (result.indexOf("</pre>") >= 0) || (preformattedSpan)) {
result = preformattedTag(result);
} else {
//tables first -> wiki-tags in cells can be treated after that
result = processTable(result);
// format lines
if (result.startsWith(" ")) {
result = "<tt>" + result.substring(1) + "</tt>";
}
if (result.startsWith("----")) {
result = "<hr />";
}
// citings contributed by [MN]
if (result.startsWith(":")) {
String head = "";
String tail = "";
while (result.startsWith(":")) {
head = head + "<blockquote>";
tail = tail + "</blockquote>";
result = result.substring(1);
}
result = head + result + tail;
}
// end contrib [MN]
// format headers
result = pairReplace(result, "====", "<h4>", "</h4>");
result = pairReplace(result, "===", "<h3>", "</h3>");
result = pairReplace(result, "==", "<h2>", "</h2>");
result = pairReplace(result, "'''''", "<b><i>", "</i></b>");
result = pairReplace(result, "'''", "<b>", "</b>");
result = pairReplace(result, "''", "<i>", "</i>");
result = unorderedList(result);
result = orderedList(result);
result = definitionList(result);
result = linksAndImages(result);
}
if (!preformatted) {
replacedHTML = false;
}
if ((result.endsWith("</li>")) || (defList) || (escape) || (preformatted) || (table) || (cellprocessing)) {
return result;
}
return result + "<br />";
}
}