Jump to MD Heading

script

// See online documentation for examples
// http://getdrafts.com/scripting

// script adapted from http://1writerapp.com/action/072ca

var content,
    lines,
    headings,
    lengths,
    ranges,
    linesLength,
    i;

content = editor.getText();
lines = content.split('\n');
linesLength = lines.length;
lengths = 0;
headings = Array();
ranges = Array();

for(i = 0; i < linesLength; i++) {
    if(lines[i].match(/^#+\s?.*/)) {
        headings.push(lines[i]);
        ranges.push(lengths);
    }
    lengths += lines[i].length + 1; // +1 because the line breaks count;
}

var p = Prompt.create();

if (headings.length > 0) {
	p.addSelect("headings","Jump to Section",headings,[],false);
	p.addButton("Go");
} else {
   p.title = "No headings";
}

p.show();

if (p.buttonPressed = "Go") {
	var h = p.fieldValues["headings"][0];
	if (h == undefined) {
		alert ("No heading selected"); 
		} else {
		var r = ranges[headings.findIndex(sel => sel == h)];
		editor.setSelectedRange(r);
      }
};