René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Custom behaviour: launch when vim is invoked w/o arguments or with a folder","articleBody":"I was successful configuring my .vimrc to launch fff if vim is invoked without arguments (copying a similar setting offered for NERD Tree):\r\n\r\n```\r\nautocmd StdinReadPre * let s:std_in=1\r\nautocmd VimEnter * if argc() == 0 \u0026\u0026 !exists(\"s:std_in\") | exe 'F' | endif\r\n\r\n```\r\n\r\nHowever it does not work nicely if invoked with a folder (once more, copied from NERD tree), as it follows:\r\n\r\n```\r\nautocmd StdinReadPre * let s:std_in=1\r\nautocmd VimEnter * if argc() == 1 \u0026\u0026 isdirectory(argv()[0]) \u0026\u0026 !exists(\"s:std_in\") | exe 'F' argv()[0] | wincmd p | ene | endif\r\n\r\n```\r\n\r\nAny suggestion on how to make the last working smoothly?","author":{"url":"https://github.com/mgiugliano","@type":"Person","name":"mgiugliano"},"datePublished":"2019-03-10T19:06:20.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/4/fff.vim/issues/4"}