enh(autodetect) r: detect `<-`, illegal: `->`
enh(autodetect) r: detect `<-`, illegal: `->`

carlokok/highlight.js,isagalaev/highlight.js,highlightjs/highlight.js,carlokok/highlight.js,carlokok/highlight.js,highlightjs/highlight.js,highlightjs/highlight.js,isagalaev/highlight.js,carlokok/highlight.js,highlightjs/highlight.js