Bug 155551 Arabic Separated Characters in PDF Export
When viewing the Report Design with the eclipse plugin, the Arabic characters are OK and contiguous, but when the report is exported to PDF the characters are shown separately.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFTextLM.java
PDFTextLM.this.newLine();
				vestigeIndex = (null == currentWord) ? -1 : currentWord.getStart();
				vestigeLength = (null == currentWord) ? 0 : currentWord.getLength();
				return;
			}
		}
		
		/**
		 * build areas by specified properties for text content. the return area
		 * should be an container area which contains a text chunk or only a text
		 * chunk.
		 * <p>
		 * <ul>
		 * <li>For inline text, the return value should be a container area. The
		 * container area inherit border and margin from text content. The position
		 * of the container area in its container is decided by the margin value of
		 * text content.
		 * <li>For block text, the return value should be a text chunk. The
		 * position of text chunk in its container is decided by the padding value
		 * of text content.
		 * </ul>
		 * 
		 * @param content				the TextContent which the TextArea shares the style with.
		 * @param startOffset			the start offset of the text in the TextArea relative to content.
		 * @param endOffset      		the end offset of the text in the TextArea relative to content.
		 * @param fi					the FontInfo of the text in the TextArea.
		 *   
		 * @return						the built TextArea.
		 */
		private IArea buildArea(String text, ITextContent content, FontInfo fi, Dimension dimension)