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Version 0.5

Browse Source 
Added devdoc ant target, added HTML block processing.
Implemented setting of user Decorator.
This commit is contained in:
Rene' Jeschke 2011-04-16 22:18:03 +02:00
parent e08ff546e5
commit f977df2c97
8 changed files with 422 additions and 249 deletions
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216
README.md
View File

@ -5,58 +5,33 @@ See LICENSE.txt for licensing information.
***
txtmark is yet another markdown processor for the JVM.
... and is *damn* fast^^
Again this is a WIP release.
* It is easy to use:
TODO:
String result = txtmark.Processor.process("This is ***TXTMARK***");
* It is fast (see below)
... well, it is the fastest markdown processor on the JVM right now.
- block-level HTML element processing
- code clean-ups
- see below (markdown test suite)
This is a RC version, tagged v0.5
### MarkdownTest results so far
For an in-depth explanation of the markdown syntax have a look at [daringfireball.net](http://daringfireball.net/projects/markdown/syntax).
### Markdown conformity
***
Based on [MarkdownTest\_1.0\_2007-05-09](http://daringfireball.net/projects/downloads/MarkdownTest_1.0_2007-05-09.tgz)
Txtmark passes all tests inside [MarkdownTest\_1.0\_2007-05-09](http://daringfireball.net/projects/downloads/MarkdownTest_1.0_2007-05-09.tgz)
except of two:
* Amps and angle encoding ... OK
* Auto links ... OK
* Backslash escapes ... OK
* Blockquotes with code blocks ... OK
* Code Blocks ... OK
* Code Spans ... OK
* Hard-wrapped paragraphs with list-like lines ... OK
* Horizontal rules ... OK
* Images ... FAILED (see [Note 1](#note0))
* Inline HTML (Advanced) ... FAILED (see [Note 2](#note1))
* Inline HTML (Simple) ... FAILED (see [Note 2](#note1))
* Inline HTML comments ... FAILED (see [Note 2](#note1))
* Links, inline style ... OK
* Links, reference style ... OK
* Links, shortcut references ... OK
* Literal quotes in titles ... FAILED (see [Note 3](#note2))
* Markdown Documentation - Basics ... OK
* Markdown Documentation - Syntax ... FAILED (see [Note 2](#note1))
* Nested blockquotes ... OK
* Ordered and unordered lists ... OK
* Strong and em together ... OK
* Tabs ... OK
* Tidyness ... OK
1. **Images.text**
17 passed; 6 failed.
***
1. <h4 id="note0">Note:</h4>
Fails because Txtmark doesn't produce empty 'title' image attributes.
(IMHO: Images ... OK)
2. <h4 id="note1">Note:</h4>
Fails because of currently missing block-level HTML identification.
2. **Literal quotes in titles.text**
3. <h4 id="note2">Note:</h4>
What the frell ... this test will continue to FAIL.
Sorry, but using unescaped `"` in a title which should be surrounded
by `"` is unacceptable for me ;)
@ -74,142 +49,55 @@ Based on [MarkdownTest\_1.0\_2007-05-09](http://daringfireball.net/projects/down
and Txtmark will produce the correct result.
(IMHO: Literal quotes in titles ... OK)
### Performance comparison of markdown processors for the JVM
***
---
Based on [this](http://henkelmann.eu/2011/01/10/performance_comparison_of_markdown_processor_for_the_jvm).
Txtmark's results should not be considered final, they may change in either direction
during the upcoming releases.
But I think you get the point.
Based on [this benchmark suite](http://henkelmann.eu/2011/01/10/performance_comparison_of_markdown_processor_for_the_jvm).
<table>
<tr>
<th>Test</th>
<th colspan="2">Actuarius</th>
<th colspan="2">PegDown</th>
<th colspan="2">Knockoff</th>
<th colspan="2">Txtmark</th>
</tr>
<tr>
<td></td>
<td>1st Run (ms)</td><td>2nd Run (ms)</td>
<td>1st Run (ms)</td><td>2nd Run (ms)</td>
<td>1st Run (ms)</td><td>2nd Run (ms)</td>
<td>1st Run (ms)</td><td>2nd Run (ms)</td>
</tr>
<tr>
<td>Plain Paragraphs</td>
<td>969</td><td>300</td>
<td>1468</td><td>956</td>
<td>564</td><td>362</td>
<td>114</td><td>45</td>
</tr>
<tr>
<td>Every Word Emphasized</td>
<td>1409</td><td>884</td>
<td>1435</td><td>1417</td>
<td>13161</td><td>12921</td>
<td>52</td><td>44</td>
</tr>
<tr>
<td>Every Word Strong</td>
<td>1087</td><td>978</td>
<td>1125</td><td>1100</td>
<td>9717</td><td>9586</td>
<td>40</td><td>46</td>
</tr>
<tr>
<td>Every Word Inline Code</td>
<td>351</td><td>278</td>
<td>1047</td><td>1037</td>
<td>9499</td><td>9245</td>
<td>45</td><td>35</td>
</tr>
<tr>
<td>Every Word a Fast Link</td>
<td>2123</td><td>1580</td>
<td>523</td><td>512</td>
<td>4086</td><td>3470</td>
<td>78</td><td>50</td>
</tr>
<tr>
<td>Every Word Consisting of Special XML Chars</td>
<td>3981</td><td>3973</td>
<td>3341</td><td>3055</td>
<td>372</td><td>319</td>
<td>1842</td><td>1841</td>
</tr>
<tr>
<td>Every Word wrapped in manual HTML tags</td>
<td>3073</td><td>2907</td>
<td>901</td><td>888</td>
<td>3826</td><td>3529</td>
<td>492</td><td>453</td>
</tr>
<tr>
<td>Every Line with a manual line break</td>
<td>437</td><td>583</td>
<td>1370</td><td>1363</td>
<td>1352</td><td>957</td>
<td>42</td><td>44</td>
</tr>
<tr>
<td>Every word with a full link</td>
<td>398</td><td>266</td>
<td>1057</td><td>1014</td>
<td>1755</td><td>1689</td>
<td>88</td><td>47</td>
</tr>
<tr>
<td>Every word with a full image</td>
<td>228</td><td>139</td>
<td>1110</td><td>1101</td>
<td>1917</td><td>1773</td>
<td>37</td><td>33</td>
</tr>
<tr>
<td>Every word with a reference link</td>
<td>9726</td><td>9146</td>
<td>19019</td><td>20044</td>
<td>117632</td><td>118306</td>
<td>1431</td><td>1240</td>
</tr>
<tr>
<td>Every block a quote</td>
<td>431</td><td>205</td>
<td>1366</td><td>1328</td>
<td>474</td><td>464</td>
<td>35</td><td>36</td>
</tr>
<tr>
<td>Every block a codeblock</td>
<td>68</td><td>84</td>
<td>387</td><td>377</td>
<td>161</td><td>169</td>
<td>61</td><td>19</td>
</tr>
<tr>
<td>Every block a list</td>
<td>863</td><td>912</td>
<td>1735</td><td>1762</td>
<td>602</td><td>686</td>
<td>46</td><td>36</td>
</tr>
<tr>
<td>All tests together</td>
<td>3319</td><td>2959</td>
<td>5245</td><td>5305</td>
<td>10252</td><td>9751</td>
<td>222</td><td>173</td>
</tr>
<tr><th>Test</th><th colspan="2">Actuarius</th><th colspan="2">PegDown</th><th colspan="2">Knockoff</th><th colspan="2">Txtmark</th></tr>
<tr><td></td><td>1st Run (ms)</td><td>2nd Run (ms)</td><td>1st Run (ms)</td><td>2nd Run (ms)</td><td>1st Run (ms)</td><td>2nd Run (ms)</td><td>1st Run (ms)</td><td>2nd Run (ms)</td></tr>
<tr><td>Plain Paragraphs</td><td>887</td><td>461</td><td>2455</td><td>2236</td><td>764</td><td>568</td><td>89</td><td>47</td></tr>
<tr><td>Every Word Emphasized</td><td>2220</td><td>2077</td><td>3411</td><td>3406</td><td>30503</td><td>30514</td><td>72</td><td>66</td></tr>
<tr><td>Every Word Strong</td><td>2384</td><td>2270</td><td>2456</td><td>2466</td><td>23639</td><td>23577</td><td>62</td><td>57</td></tr>
<tr><td>Every Word Inline Code</td><td>824</td><td>804</td><td>2337</td><td>2237</td><td>23506</td><td>23622</td><td>54</td><td>55</td></tr>
<tr><td>Every Word a Fast Link</td><td>3942</td><td>3738</td><td>1164</td><td>1159</td><td>8621</td><td>8595</td><td>89</td><td>68</td></tr>
<tr><td>Every Word Consisting of Special XML Chars</td><td>9393</td><td>9312</td><td>7544</td><td>7314</td><td>801</td><td>608</td><td>3587</td><td>3614</td></tr>
<tr><td>Every Word wrapped in manual HTML tags</td><td>6843</td><td>6828</td><td>1850</td><td>1859</td><td>8699</td><td>8692</td><td>1169</td><td>1154</td></tr>
<tr><td>Every Line with a manual line break</td><td>859</td><td>724</td><td>2968</td><td>2946</td><td>2171</td><td>1990</td><td>58</td><td>56</td></tr>
<tr><td>Every word with a full link</td><td>528</td><td>501</td><td>2252</td><td>2280</td><td>3513</td><td>3512</td><td>66</td><td>60</td></tr>
<tr><td>Every word with a full image</td><td>395</td><td>374</td><td>2463</td><td>2569</td><td>3757</td><td>3726</td><td>56</td><td>55</td></tr>
<tr><td>Every word with a reference link</td><td>19208</td><td>19035</td><td>39183</td><td>38710</td><td>243450</td><td>244943</td><td>1826</td><td>1798</td></tr>
<tr><td>Every block a quote</td><td>465</td><td>449</td><td>2687</td><td>2684</td><td>978</td><td>977</td><td>48</td><td>48</td></tr>
<tr><td>Every block a codeblock</td><td>151</td><td>134</td><td>597</td><td>601</td><td>270</td><td>262</td><td>36</td><td>27</td></tr>
<tr><td>Every block a list</td><td>1209</td><td>1106</td><td>3448</td><td>3432</td><td>1411</td><td>1368</td><td>52</td><td>60</td></tr>
<tr><td>All tests together</td><td>6062</td><td>6042</td><td>11556</td><td>11589</td><td>19827</td><td>19637</td><td>452</td><td>448</td></tr>
</table>
* Q: Why is Txtmark so slow when it comes to XML entities?
* A: Because Txtmark does some sanity checks on XML entities to make sure
it outputs valid XML. For example:
&cutie;
will produce (when processed with Markdown and most other markdown processors):
&cutie;
and
&amp;cutie;
when processed with Txtmark.
Tested versions:
[Actuarius] version: 0.2
[PegDown] version: 0.8.5.4
[Knockoff] version: 0.7.3-15
***
---
[Markdown] is copyright (c) 2004 by John Gruber
[Markdown]: http://daringfireball.net/projects/markdown/

20
build.xml
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@ -19,8 +19,26 @@
<javac srcdir="src/java" destdir="build/classes" target="1.6" includeAntRuntime="false"/>
</target>
<target name="doc" description="Generates the JavaDoc">
<target name="doc" description="Generates the user JavaDoc">
<mkdir dir="doc"/>
<delete>
<fileset dir="doc" includes="**/*.*"/>
</delete>
<javadoc
sourcepath="src/java"
access="public"
author="true"
destdir="doc"
encoding="UTF-8"
charset="UTF-8"
link="http://download.oracle.com/javase/6/docs/api/"/>
</target>
<target name="devdoc" description="Generates the developer JavaDoc">
<mkdir dir="doc"/>
<delete>
<fileset dir="doc" includes="**/*.*"/>
</delete>
<javadoc
sourcepath="src/java"
access="private"

66
src/java/txtmark/Emitter.java
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@ -16,12 +16,12 @@ class Emitter
/** Link references. */
private final HashMap<String, LinkRef> linkRefs = new HashMap<String, LinkRef>();
/** The Decorator. */
private final Decorator decorator = new DefaultDecorator();
private Decorator decorator;
/** Constructor. */
public Emitter()
public Emitter(final Decorator decorator)
{
//
this.decorator = decorator;
}
/**
@ -360,62 +360,7 @@ class Emitter
if(start + 2 < in.length())
{
temp.setLength(0);
temp.append('<');
pos = start + 1;
if(in.charAt(pos) == '/')
{
temp.append('/');
pos++;
}
if(pos < in.length() && Character.isLetter(in.charAt(pos)))
{
pos = Utils.readUntil(temp, in, pos, ' ', '/', '>');
if(pos > 0)
{
while(pos < in.length() && in.charAt(pos) == ' ')
{
pos = Utils.skipSpaces(in, pos);
if(pos == -1)
break;
if(in.charAt(pos) == '/')
{
temp.append(" /");
pos++;
break;
}
if(in.charAt(pos) == '>')
{
break;
}
temp.append(' ');
if(!Character.isLetter(in.charAt(pos)))
{
pos = -1;
break;
}
pos = Utils.readUntil(temp, in, pos, '=');
if(pos == -1)
break;
pos = Utils.readUntil(temp, in, pos, '\'', '"');
if(pos == -1)
break;
final char lim = in.charAt(pos);
temp.append(lim);
pos++;
pos = Utils.readRawUntil(temp, in, pos, lim);
if(pos == -1)
break;
temp.append(lim);
pos++;
}
if(pos > 0 && pos < in.length() && in.charAt(pos) == '>')
{
temp.append('>');
out.append(temp);
return pos;
}
}
}
return Utils.readXML(out, in, start);
}
return -1;
@ -712,8 +657,7 @@ class Emitter
{
out.append(line.value);
}
if(line.next != null)
out.append('\n');
out.append('\n');
line = line.next;
}
}

1
src/java/txtmark/HTMLElement.java
View File

@ -11,6 +11,7 @@ package txtmark;
*/
enum HTMLElement
{
NONE,
a, abbr, acronym, address, applet, area,
b, base, basefont, bdo, big, blockquote, body, br, button,
caption, cite, code, col, colgroup,

140
src/java/txtmark/Line.java
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@ -4,6 +4,8 @@
*/
package txtmark;
import java.util.LinkedList;
/**
* This class represents a text line.
*
@ -26,7 +28,8 @@ class Line
public Line previous = null, next = null;
/** Is previous/next line empty? */
public boolean prevEmpty, nextEmpty;
/** Final line of a XML block. */
public Line xmlEndLine;
/** Constructor. */
public Line()
{
@ -243,6 +246,12 @@ class Line
return LineType.OLIST;
}
if(this.value.charAt(this.leading) == '<')
{
if(this.checkHTML())
return LineType.XML;
}
if(this.next != null && !this.next.isEmpty)
{
if((this.next.value.charAt(0) == '-') && (this.next.countChars('-') > 0))
@ -253,4 +262,133 @@ class Line
return LineType.OTHER;
}
/**
* Reads an XML comment. Sets <code>xmlEndLine</code>.
*
* @param firstLine The Line to start reading from.
* @param start The starting position.
* @return The new position or -1 if it is no valid comment.
*/
private int readXMLComment(final Line firstLine, final int start)
{
Line line = firstLine;
if(start + 3 < line.value.length())
{
if(line.value.charAt(2) == '-' && line.value.charAt(3) == '-')
{
int pos = start + 4;
while(line != null)
{
while(pos < line.value.length() && line.value.charAt(pos) != '-')
{
pos++;
}
if(pos == line.value.length())
{
line = line.next;
pos = 0;
}
else
{
if(pos + 2 < line.value.length())
{
if(line.value.charAt(pos + 1) == '-' && line.value.charAt(pos + 2) == '>')
{
this.xmlEndLine = line;
return pos + 3;
}
}
pos++;
}
}
}
}
return -1;
}
/**
* Checks for a valid HTML block. Sets <code>xmlEndLine</code>.
*
* @return <code>true</code> if it is a valid block.
*/
private boolean checkHTML()
{
final LinkedList<String> tags = new LinkedList<String>();
final StringBuilder temp = new StringBuilder();
int pos = this.leading;
if(this.value.charAt(this.leading + 1) == '!')
{
if(this.readXMLComment(this, this.leading) > 0)
return true;
}
pos = Utils.readXML(temp, this.value, this.leading);
String element, tag;
if(pos > -1)
{
element = temp.toString();
temp.setLength(0);
Utils.getXMLTag(temp, element);
tag = temp.toString().toLowerCase();
if(!HTML.isHtmlBlockElement(tag))
return false;
if(tag.equals("hr"))
{
this.xmlEndLine = this;
return true;
}
tags.add(tag);
Line line = this;
while(line != null)
{
while(pos < line.value.length() && line.value.charAt(pos) != '<')
{
pos++;
}
if(pos >= line.value.length())
{
line = line.next;
pos = 0;
}
else
{
temp.setLength(0);
final int newPos = Utils.readXML(temp, line.value, pos);
if(newPos > 0)
{
element = temp.toString();
temp.setLength(0);
Utils.getXMLTag(temp, element);
tag = temp.toString().toLowerCase();
if(HTML.isHtmlBlockElement(tag) && !tag.equals("hr"))
{
if(element.charAt(1) == '/')
{
if(!tags.getLast().equals(tag))
return false;
tags.removeLast();
}
else
{
tags.addLast(tag);
}
}
if(tags.size() == 0)
{
this.xmlEndLine = line;
break;
}
pos = newPos;
}
else
{
pos++;
}
}
}
return tags.size() == 0;
}
return false;
}
}

4
src/java/txtmark/LineType.java
View File

@ -24,5 +24,7 @@ enum LineType
/** A block quote. */
BQUOTE,
/** A horizontal ruler. */
HR
HR,
/** Start of a XML block. */
XML
}

130
src/java/txtmark/Processor.java
View File

@ -23,20 +23,21 @@ public class Processor
/** The reader. */
private final Reader reader;
/** The emitter. */
private Emitter emitter = new Emitter();
private final Emitter emitter;
/**
* Constructor.
*
* @param reader The input reader.
*/
private Processor(Reader reader)
private Processor(Reader reader, Decorator decorator)
{
this.reader = reader;
this.emitter = new Emitter(decorator);
}
/**
* Transforms an input String into XHTML.
* Transforms an input String into XHTML using the default Decorator.
*
* @param input The String to process.
* @return The processed String.
@ -48,7 +49,19 @@ public class Processor
}
/**
* Transforms an input file into XHTML using UTF-8 encoding.
* Transforms an input String into XHTML.
*
* @param input The String to process.
* @return The processed String.
* @throws IOException if an IO error occurs
*/
public static String process(final String input, final Decorator decorator) throws IOException
{
return process(new StringReader(input), decorator);
}
/**
* Transforms an input file into XHTML using UTF-8 encoding and the default Decorator.
*
* @param file The File to process.
* @return The processed String.
@ -60,7 +73,19 @@ public class Processor
}
/**
* Transforms an input file into XHTML.
* Transforms an input file into XHTML using UTF-8 encoding.
*
* @param file The File to process.
* @return The processed String.
* @throws IOException if an IO error occurs
*/
public static String process(final File file, final Decorator decorator) throws IOException
{
return process(file, "UTF-8", decorator);
}
/**
* Transforms an input file into XHTML using the default Decorator.
*
* @param file The File to process.
* @param encoding The encoding to use.
@ -69,13 +94,37 @@ public class Processor
*/
public static String process(final File file, final String encoding) throws IOException
{
final Reader r = new BufferedReader(new InputStreamReader(new FileInputStream(file), encoding));
final Processor p = new Processor(r);
final String ret = p.process();
r.close();
return process(file, encoding, new DefaultDecorator());
}
/**
* Transforms an input file into XHTML.
*
* @param file The File to process.
* @param encoding The encoding to use.
* @return The processed String.
* @throws IOException if an IO error occurs
*/
public static String process(final File file, final String encoding, final Decorator decorator) throws IOException
{
final FileInputStream input = new FileInputStream(file);
final String ret = process(input, encoding, decorator);
input.close();
return ret;
}
/**
* Transforms an input stream into XHTML using UTF-8 encoding using the default Decorator.
*
* @param input The InputStream to process.
* @return The processed String.
* @throws IOException if an IO error occurs
*/
public static String process(final InputStream input) throws IOException
{
return process(input, "UTF-8", new DefaultDecorator());
}
/**
* Transforms an input stream into XHTML using UTF-8 encoding.
*
@ -83,9 +132,23 @@ public class Processor
* @return The processed String.
* @throws IOException if an IO error occurs
*/
public static String process(final InputStream input) throws IOException
public static String process(final InputStream input, final Decorator decorator) throws IOException
{
return process(input, "UTF-8");
return process(input, "UTF-8", decorator);
}
/**
* Transforms an input stream into XHTML using the default Decorator.
*
* @param input The InputStream to process.
* @param encoding The encoding to use.
* @return The processed String.
* @throws IOException if an IO error occurs
*/
public static String process(final InputStream input, final String encoding) throws IOException
{
final Processor p = new Processor(new BufferedReader(new InputStreamReader(input, encoding)), new DefaultDecorator());
return p.process();
}
/**
@ -96,9 +159,24 @@ public class Processor
* @return The processed String.
* @throws IOException if an IO error occurs
*/
public static String process(final InputStream input, final String encoding) throws IOException
public static String process(final InputStream input, final String encoding, final Decorator decorator) throws IOException
{
final Processor p = new Processor(new BufferedReader(new InputStreamReader(input, encoding)));
final Processor p = new Processor(new BufferedReader(new InputStreamReader(input, encoding)), decorator);
return p.process();
}
/**
* Transforms an input stream into XHTML using the default Decorator.
*
* @param reader The Reader to process.
* @return The processed String.
* @throws IOException if an IO error occurs
*/
public static String process(final Reader reader) throws IOException
{
final Processor p = new Processor(
!(reader instanceof BufferedReader) ? new BufferedReader(reader) : reader,
new DefaultDecorator());
return p.process();
}
@ -109,9 +187,11 @@ public class Processor
* @return The processed String.
* @throws IOException if an IO error occurs
*/
public static String process(final Reader reader) throws IOException
public static String process(final Reader reader, final Decorator decorator) throws IOException
{
final Processor p = new Processor(!(reader instanceof BufferedReader) ? new BufferedReader(reader) : reader);
final Processor p = new Processor(
!(reader instanceof BufferedReader) ? new BufferedReader(reader) : reader,
decorator);
return p.process();
}
@ -319,7 +399,9 @@ public class Processor
final LineType t = line.getLineType();
if(listMode && (t == LineType.OLIST || t == LineType.ULIST))
break;
if(t == LineType.HEADLINE || t == LineType.HEADLINE1 || t == LineType.HEADLINE2 || t == LineType.HR || t == LineType.BQUOTE)
if(t == LineType.HEADLINE || t == LineType.HEADLINE1 || t == LineType.HEADLINE2
|| t == LineType.HR || t == LineType.BQUOTE
|| t == LineType.XML)
break;
line = line.next;
}
@ -349,6 +431,16 @@ public class Processor
block.type = BlockType.CODE;
block.removeSurroundingEmptyLines();
break;
case XML:
if(line.previous != null)
{
// FIXME ... this looks wrong
root.split(line.previous);
}
root.split(line.xmlEndLine).type = BlockType.XML;
root.removeLeadingEmptyLines();
line = root.lines;
break;
case BQUOTE:
while(line != null)
{
@ -366,6 +458,7 @@ public class Processor
case HR:
if(line.previous != null)
{
// FIXME ... this looks wrong
root.split(line.previous);
}
root.split(line).type = BlockType.RULER;
@ -442,8 +535,6 @@ public class Processor
{
final StringBuilder out = new StringBuilder();
// long t0 = System.nanoTime();
final Block parent = this.readLines();
parent.removeSurroundingEmptyLines();
@ -455,9 +546,6 @@ public class Processor
block = block.next;
}
// t0 = System.nanoTime() - t0;
// out.append(String.format("\n<!-- Processing time: %dms -->\n", (int)(t0 * 1e-6)));
return out.toString();
}
}

94
src/java/txtmark/Utils.java
View File

@ -428,4 +428,98 @@ class Utils
}
}
}
/**
* Extracts the tag from an XML element.
*
* @param out The StringBuilder to write to.
* @param in Input StringBuilder.
*/
public static void getXMLTag(final StringBuilder out, final StringBuilder in)
{
int pos = 1;
if(in.charAt(1) == '/')
pos++;
while(Character.isLetterOrDigit(in.charAt(pos)))
{
out.append(in.charAt(pos++));
}
}
/**
* Extracts the tag from an XML element.
*
* @param out The StringBuilder to write to.
* @param in Input String.
*/
public static void getXMLTag(final StringBuilder out, final String in)
{
int pos = 1;
if(in.charAt(1) == '/')
pos++;
while(Character.isLetterOrDigit(in.charAt(pos)))
{
out.append(in.charAt(pos++));
}
}
/**
* Reads an XML element.
*
* @param out The StringBuilder to write to.
* @param in Input String.
* @param start Starting position.
* @return The new position or -1 if this is no valid XML element.
*/
public static int readXML(final StringBuilder out, final String in, final int start)
{
int pos;
if(in.charAt(start + 1) == '/')
{
out.append("</");
pos = start + 2;
}
else
{
out.append('<');
pos = start + 1;
}
pos = readRawUntil(out, in, pos, ' ', '/', '>');
if(pos == -1) return -1;
pos = skipSpaces(in, pos);
if(Character.isLetter(in.charAt(pos)))
{
while(in.charAt(pos) != '/' && in.charAt(pos) != '>')
{
out.append(' ');
pos = readRawUntil(out, in, pos, ' ', '=');
if(pos == -1) return -1;
pos = skipSpaces(in, pos);
if(pos == -1) return -1;
out.append('=');
pos = skipSpaces(in, pos + 1);
if(pos == -1) return -1;
final char lim = in.charAt(pos);
if(lim != '\'' && lim != '"') return -1;
out.append(lim);
pos = readRawUntil(out, in, pos + 1, lim);
if(pos == -1) return -1;
out.append(lim);
pos = skipSpaces(in, pos + 1);
if(pos == -1) return -1;
}
}
if(in.charAt(pos) == '/')
{
out.append('/');
pos++;
}
if(in.charAt(pos) == '>')
{
out.append('>');
return pos;
}
return -1;
}
}