Markdown Footnote (^)

script

// add footnote

let f = () => {
	// prompt for marker name
	let p = new Prompt()
	p.title = "Insert Footnote"
	p.addTextField("marker", "Marker", "", {
		"placeholder": "marker name",
		"wantsFocus": true
	})
	p.addButton("Insert", "insert", true)
	if (!p.show()) {
		return false
	}

	// validate that we have a marker
	let marker = p.fieldValues["marker"]
	if (marker.length == 0) {
		alert("Marker required")
		context.fail()
		return false
	}

	// get cursor info
	const [st,len] = editor.getSelectedRange()
	const [lnSt, lnLen] = editor.getSelectedLineRange()
	// setup values
	const m = `[^${marker}]`
	let fn = `
[^${marker}]: 
`

	// insert marker and footnote
	const lnText = editor.getTextInRange(lnSt, lnLen)
	if (lnText.length > 0 && lnText.slice(-1) != "\n") {
		fn = "\n" + fn
	}
	
	editor.setTextInRange(lnSt+lnLen, 0, fn)
	editor.setTextInRange(st+len, 0, m)
	editor.setSelectedRange(lnSt+lnLen+m.length+fn.length-1, 0)
	editor.activate()
	return true
}

if (!f()) {
	context.cancel()
}