Commits on May 19, 2024

1. fix: don't set conceallevel from syntax plugin …

   I noticed that when I load a markdown file in vim, the `vim-json` file
   automatically runs `set conceallevel=2`. There's a few configs which are
   necessary to reproduce this:
   
   1. vimrc should have `let g:markdown_fenced_languages = [ 'json', ... ]`
   2. Install `elzr/vim-json` plugin
   3. Load any markdown file
   
   When these conditions are met, the markdown plugin will load the
   `vim-json/syntax/json.vim` script. The problem is that this script does
   something unusual by also loading the corresponding `ftplugin` script.
   Since loading the `ftplugin` script is the root cause, the fix is to
   stop loading this script. Because the `g:vim_json_syntax_conceal` plugin
   might be uninitialized now, this guards the references with `exists()`
   expressions. This is the same pattern as used in the builtin json syntax
   plugin (`vim/runtime/syntax/json.vim`).
   
   I tested this with:
   
   * `set conceallevel=2 | let g:vim_json_syntax_conceal = 0`
   * `set conceallevel=0 | let g:vim_json_syntax_conceal = 1`
   * and also with default settings
   
   Fixes elzr#104

   

   nfischer committed May 19, 2024
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