/**
 * Surround.bsh- jEdit macro to surround selections with designated string
 *
 * The script is designed to apply inline markup according to the 
 * reStructuredText specification. To this end it tries to extend the selection
 * to include word boundaries, making it valid reStructuredText markup. Multiple
 * selection is supported. The selection is preserved to make it easy to apply
 * another markup operation immediately afterwards.
 * 
 * Author: Vassil Dichev, 2007
 */

void surroundText(View view)
{
	this.view = view;

	surroundString = Macros.input(view, "Surround String","*");

	if(surroundString == null || surroundString.length() == 0 )
		return;

	Selection[] selections = textArea.selection;
	if (selections.length != 0){
		for(Selection selection: selections)
		{
			// Extend selection to word boundaries
			textArea.moveCaretPosition(selection.start);
			textArea.selectWord();
			textArea.moveCaretPosition(selection.end);
			// Hack to avoid selecting/moving over non-word characters to the start of next word
			textArea.goToPrevCharacter(true);
			textArea.selectWord();

			// Insert surround string and extend selection to include it
			newSelection = textArea.getSelectionAtOffset(textArea.caretPosition);
			start = newSelection.start;
			buffer.insert(start, surroundString);
			textArea.extendSelection(start, start + surroundString.length());
			buffer.insert(newSelection.end, surroundString);
		}
	} else {
			textArea.selectWord();
			text = textArea.selectedText;
			if(text == null) text = "";
			textArea.selectedText = surroundString + text + surroundString;
	}
}

if(buffer.isReadOnly())
	Macros.error(view, "Buffer is read-only.");
else
	surroundText(view);