// Endnoteletters2numbers.jsx
// changes endnote letters to numbers
// Presuppositions: when importing from Word, make sure
// Show Import options is on. Next make sure that a new style
// Endnote Reference is made for endnote references (this is standard).
// The endnote numbers in the text must have the
// character style chosen in the dialog displayed at starting the script.
// The Endnote text must have the paragraph style chosen in
// the dialog displayed at starting the script.
// The endnote separator must be the character specified in 
// the dialog displayed at starting the script and must not 
// be used in paragraphs in endnotes that have no endnote number.
// Made by Teus de Jong; last version August 28, 2005
var doendnotes = true;
endnotereferencestyle = 'Endnote Reference';
endnotetextstyle = 'Endnote Text';
endnoteseparator = '^t'; // tab
if (!doDisplayDialog()){exit()}
u = undefined;
app.findPreferences = app.changePreferences = null;
notes = app.activeDocument.search(u, u, u, u, {appliedCharacterStyle: endnotereferencestyle});
for (i = notes.length-1; i > -1; i--){
	notes[i].contents = letterstonumbers(notes[i].contents);
}
app.findPreferences = null;
if (!doendnotes){exit()}
notetexts = app.activeDocument.search('^p', u, u, u, {appliedParagraphStyle: endnotetextstyle});
for (i = notetexts.length-1; i > -1; i--){
	if (notetexts[i].paragraphs[0].contents.indexOf(endnoteseparator) == -1) {continue}
	try{
		notetexts[i].paragraphs[0].words[0].contents = letterstonumbers(notetexts[i].paragraphs[0].words[0].contents);
	}
	catch (e) {}
}
app.findPreferences = null;


function letterstonumbers(s){
	var i;
	var havepoint = false;
	x = 0;
	if (s.indexOf('.') == s.length - 1){
		s = s.split('.')[0];
		havepoint = true;
	}
	if (!checkcontents(s)){
		if (havepoint){
			s = s+'.';
		}
		return(s);
	}
	ln = s.length;
	for (i = ln-1; i > -1; i--){
		multiplier = Math.pow(26,  ((ln-1) - i));
		x += (s.charCodeAt(i) - 96) * multiplier;
	}
	s = x.toString();
	if (havepoint){ 
		s = s + '.';
	}
	return(s);
}

function checkcontents(s){
	var i;
	for (i = 0; i < s.length; i++){
		if ((s.charCodeAt(i) < 97) || (s.charCodeAt(i) > 122)){
			return(false);
		}
	}
	return(true);
}
function doDisplayDialog(){
	var i;
	with (theDialog = app.dialogs.add({name:'Choose styles and options'})){

		//Add a dialog column.
		DialogColumn1 = dialogColumns.add();	
		with (DialogColumn1){

			staticTexts.add({staticLabel:'Endnote reference:'});
			staticTexts.add({staticLabel:'Endnote text:'});
			staticTexts.add({staticLabel:'Handle numbers in notes:'});
			staticTexts.add({staticLabel:'Endnote separator:'});
		}
		DialogColumn2 = dialogColumns.add();	
		with (DialogColumn2){

			with (endnotereferencebox = dropdowns.add()){
				stringList = app.activeDocument.characterStyles.everyItem().name;
				for (i = 0; i < stringList.length; i++){
					if (stringList[i] == endnotereferencestyle){
						selectedIndex = i;
						break;
					}
				}
			}
			with (endnotetextbox = dropdowns.add()){
				stringList = app.activeDocument.paragraphStyles.everyItem().name;
				for (i = 0; i < stringList.length; i++){
					if (stringList[i] == endnotetextstyle){
						selectedIndex = i;
						break;
					}
				}
			}
			with (doends = checkboxControls.add()){
				checkedState = true;
			}
			with (endnotesepbox = textEditboxes.add()){
					editContents = endnoteseparator;
			}
		}
		if (theDialog.show()) {

			endnotereferencestyle = endnotereferencebox.stringList[endnotereferencebox.selectedIndex];
			endnotetextstyle = endnotetextbox.stringList[endnotetextbox.selectedIndex];
			doendnotes = doends.checkedState;
			endnoteseparator = endnotesepbox.editContents;
			switch (endnoteseparator){
				case '^t':
				case '\t': {endnoteseparator = '\u0009'; break}
				case '^>': {endnoteseparator = '\u2002'; break;}
				case '^m': {endnoteseparator = '\u2003'; break;}
				case '^s': {endnoteseparator = '\u00A0'; break;}
			}
			theDialog.destroy;
			return(true);
		}
		else{

			theDialog.destroy();
			return(false);
		}
	}
}