runtime(astro): Add filetype, syntax and indent plugin
related: #14558
closes: #14561
ported from: https://github.com/wuelnerdotexe/vim-astro
Signed-off-by: Philip H <47042125+pheiduck@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/ftplugin/astro.vim b/runtime/ftplugin/astro.vim
new file mode 100644
index 0000000..0b0e034
--- /dev/null
+++ b/runtime/ftplugin/astro.vim
@@ -0,0 +1,186 @@
+" Vim filetype plugin file
+" Language: Astro
+" Maintainer: Romain Lafourcade <romainlafourcade@gmail.com>
+" Last Change: 2024 Apr 21
+
+if exists("b:did_ftplugin")
+ finish
+endif
+let b:did_ftplugin = 1
+
+let s:cpo_save = &cpo
+set cpo-=C
+
+function! s:IdentifyScope(start, end) abort
+ let pos_start = searchpairpos(a:start, '', a:end, 'bnW')
+ let pos_end = searchpairpos(a:start, '', a:end, 'nW')
+
+ return pos_start != [0, 0]
+ \ && pos_end != [0, 0]
+ \ && pos_start[0] != getpos('.')[1]
+endfunction
+
+function! s:AstroComments() abort
+ if s:IdentifyScope('^---\n\s*\S', '^---\n\n')
+ \ || s:IdentifyScope('^\s*<script', '^\s*<\/script>')
+ " ECMAScript comments
+ setlocal comments=sO:*\ -,mO:*\ \ ,exO:*/,s1:/*,mb:*,ex:*/,://
+ setlocal commentstring=//%s
+
+ elseif s:IdentifyScope('^\s*<style', '^\s*<\/style>')
+ " CSS comments
+ setlocal comments=s1:/*,mb:*,ex:*/
+ setlocal commentstring=/*%s*/
+
+ else
+ " HTML comments
+ setlocal comments=s:<!--,m:\ \ \ \ ,e:-->
+ setlocal commentstring=<!--%s-->
+ endif
+endfunction
+
+" https://code.visualstudio.com/docs/languages/jsconfig
+function! s:CollectPathsFromConfig() abort
+ let config_json = findfile('tsconfig.json', '.;')
+
+ if empty(config_json)
+ let config_json = findfile('jsconfig.json', '.;')
+
+ if empty(config_json)
+ return
+ endif
+ endif
+
+ let paths_from_config = config_json
+ \ ->readfile()
+ \ ->filter({ _, val -> val =~ '^\s*[\[\]{}"0-9]' })
+ \ ->join()
+ \ ->json_decode()
+ \ ->get('compilerOptions', {})
+ \ ->get('paths', {})
+
+ if !empty(paths_from_config)
+ let b:astro_paths = paths_from_config
+ \ ->map({key, val -> [
+ \ key->glob2regpat(),
+ \ val[0]->substitute('\/\*$', '', '')
+ \ ]})
+ \ ->values()
+ endif
+
+ let b:undo_ftplugin ..= " | unlet! b:astro_paths"
+endfunction
+
+function! s:AstroInclude(filename) abort
+ let decorated_filename = a:filename
+ \ ->substitute("^", "@", "")
+
+ let found_path = b:
+ \ ->get("astro_paths", [])
+ \ ->indexof({ key, val -> decorated_filename =~ val[0]})
+
+ if found_path != -1
+ let alias = b:astro_paths[found_path][0]
+ let path = b:astro_paths[found_path][1]
+ \ ->substitute('\(\/\)*$', '/', '')
+
+ return decorated_filename
+ \ ->substitute(alias, path, '')
+ endif
+
+ return a:filename
+endfunction
+
+let b:undo_ftplugin = "setlocal"
+ \ .. " formatoptions<"
+ \ .. " path<"
+ \ .. " suffixesadd<"
+ \ .. " matchpairs<"
+ \ .. " comments<"
+ \ .. " commentstring<"
+ \ .. " iskeyword<"
+ \ .. " define<"
+ \ .. " include<"
+ \ .. " includeexpr<"
+
+" Create self-resetting autocommand group
+augroup Astro
+ autocmd! * <buffer>
+augroup END
+
+" Set 'formatoptions' to break comment lines but not other lines,
+" and insert the comment leader when hitting <CR> or using "o".
+setlocal formatoptions-=t
+setlocal formatoptions+=croql
+
+" Remove irrelevant part of 'path'.
+setlocal path-=/usr/include
+
+" Seed 'path' with default directories for :find, gf, etc.
+setlocal path+=src/**
+setlocal path+=public/**
+
+" Help Vim find extension-less filenames
+let &l:suffixesadd =
+ \ ".astro"
+ \ .. ",.js,.jsx,.es,.es6,.cjs,.mjs,.jsm"
+ \ .. ",.json"
+ \ .. ",.scss,.sass,.css"
+ \ .. ",.svelte"
+ \ .. ",.ts,.tsx,.d.ts"
+ \ .. ",.vue"
+
+" From $VIMRUNTIME/ftplugin/html.vim
+setlocal matchpairs+=<:>
+
+" Matchit configuration
+if exists("loaded_matchit")
+ let b:match_ignorecase = 0
+
+ " From $VIMRUNTIME/ftplugin/javascript.vim
+ let b:match_words =
+ \ '\<do\>:\<while\>,'
+ \ .. '<\@<=\([^ \t>/]\+\)\%(\s\+[^>]*\%([^/]>\|$\)\|>\|$\):<\@<=/\1>,'
+ \ .. '<\@<=\%([^ \t>/]\+\)\%(\s\+[^/>]*\|$\):/>'
+
+ " From $VIMRUNTIME/ftplugin/html.vim
+ let b:match_words ..=
+ \ '<!--:-->,'
+ \ .. '<:>,'
+ \ .. '<\@<=[ou]l\>[^>]*\%(>\|$\):<\@<=li\>:<\@<=/[ou]l>,'
+ \ .. '<\@<=dl\>[^>]*\%(>\|$\):<\@<=d[td]\>:<\@<=/dl>,'
+ \ .. '<\@<=\([^/!][^ \t>]*\)[^>]*\%(>\|$\):<\@<=/\1>'
+
+ let b:undo_ftplugin ..= " | unlet! b:match_ignorecase b:match_words"
+endif
+
+" Change what constitutes a word, mainly useful for CSS/SASS
+setlocal iskeyword+=-
+setlocal iskeyword+=$
+setlocal iskeyword+=%
+
+" Define paths/aliases for module resolution
+call s:CollectPathsFromConfig()
+
+" Find ESM imports
+setlocal include=^\\s*\\(import\\\|import\\s\\+[^\/]\\+from\\)\\s\\+['\"]
+
+" Process aliases if file can't be found
+setlocal includeexpr=s:AstroInclude(v:fname)
+
+" Set 'define' to a comprehensive value
+" From $VIMRUNTIME/ftplugin/javascript.vim and
+" $VIMRUNTIME/ftplugin/sass.vim
+let &l:define =
+ \ '\(^\s*(*async\s\+function\|(*function\)'
+ \ .. '\|^\s*\(\*\|static\|async\|get\|set\|\i\+\.\)'
+ \ .. '\|^\s*\(\ze\i\+\)\(([^)]*).*{$\|\s*[:=,]\)'
+
+
+" Set &comments and &commentstring according to current scope
+autocmd Astro CursorMoved <buffer> call s:AstroComments()
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
+
+" vim: textwidth=78 tabstop=8 shiftwidth=4 softtabstop=4 expandtab