1 files changed, 110 insertions, 0 deletions
diff --git a/Essentials/src/com/earth2me/essentials/textreader/BookPager.java b/Essentials/src/com/earth2me/essentials/textreader/BookPager.java
new file mode 100644
index 000000000..1a2d80e9e
--- /dev/null
+++ b/Essentials/src/com/earth2me/essentials/textreader/BookPager.java
@@ -0,0 +1,110 @@
+package com.earth2me.essentials.textreader;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+
+
+public class BookPager
+{
+	private final transient IText text;
+
+	public BookPager(final IText text)
+	{
+		this.text = text;
+	}
+
+	public List<String> getPages(final String pageStr) throws Exception
+	{
+		List<String> lines = text.getLines();
+		List<String> chapters = text.getChapters();
+		List<String> pageLines = new ArrayList<String>();
+		Map<String, Integer> bookmarks = text.getBookmarks();
+
+		//This checks to see if we have the chapter in the index
+		if (!bookmarks.containsKey(pageStr.toLowerCase(Locale.ENGLISH)))
+		{
+			throw new Exception("No such /einfo chapter!");
+		}
+
+		//Since we have a valid chapter, count the number of lines in the chapter
+		final int chapterstart = bookmarks.get(pageStr.toLowerCase(Locale.ENGLISH)) + 1;
+		int chapterend;
+		for (chapterend = chapterstart; chapterend < lines.size(); chapterend++)
+		{
+			final String line = lines.get(chapterend);
+			if (line.length() > 0 && line.charAt(0) == '#')
+			{
+				break;
+			}
+		}
+
+		for (int lineNo = chapterstart; lineNo < chapterend; lineNo += 1)
+		{
+			String pageLine = "\u00a70" + lines.get(lineNo);
+			String tempLine;
+			final double max = 18;
+			final int lineLength = pageLine.length();
+			double length = 0;
+			int pointer = 0;
+			int start = 0;
+			double weight = 1;
+
+			while (pointer < lineLength)
+			{
+				if (length >= max)
+				{
+					tempLine = pageLine.substring(start, pointer);
+					pageLines.add(tempLine);
+					start = pointer;
+					length = 0;
+				}
+
+				Character letter = pageLine.charAt(pointer);
+
+				if (letter == '\u00a7')
+				{
+					Character nextLetter = pageLine.charAt(pointer + 1);
+					if (nextLetter == 'l' || nextLetter == 'L')
+					{
+						weight = 1.25;
+					}
+					else
+					{
+						weight = 1;
+					}
+					pointer++;
+				}
+				else if (letter == ' ')
+				{
+					length += (0.7 * weight);
+				}
+				else
+				{
+					length += weight;
+				}
+				pointer++;
+			}
+			if (length > 0)
+			{
+				tempLine = pageLine.substring(start, lineLength);
+				pageLines.add(tempLine);
+			}
+		}
+
+		List<String> pages = new ArrayList<String>();
+		for (int count = 0; count < pageLines.size(); count += 12)
+		{
+			StringBuilder newPage = new StringBuilder();
+			for (int i = count; i < count + 12 && i < pageLines.size(); i++)
+			{
+				newPage.append("\n").append(pageLines.get(i));
+			}
+
+			pages.add(newPage.toString());
+		}
+
+		return pages;
+	}
+}