Method readFile

src/main/java/fieldcef/plugins/OutputBox.kt:224–241

            this.delegate = delegate
        }
    }

    companion object {
        val output = Dict.Prop<FunctionOfBoxValued<TemplateMap<Browser>>>("output")//.type<Any>()
            .doc<FunctionOfBoxValued<TemplateMap<Browser>>>("`_.output.blah.print('something')` will print to (and, if necessary, create) an html output box")
            .toCanon<FunctionOfBoxValued<TemplateMap<Browser>>>()

        private fun readFile(s: String, append: Boolean): String {
            try {
                BufferedReader(FileReader(File(s))).use { r ->
                    var line = ""
                    while (r.ready()) {
                        line += """
                        ${r.readLine()}
                        
                        """.trimIndent()
                    }
                    if (append) line += "\n//# sourceURL=$s"
                    return line
                }
            } catch (e: IOException) {