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runtime/elm: acc224064033e5cea21ef7f1eefb356ca06ff11d (#13718)
Port ftplugin, syntax and indent Elm files. Ref: #13193
This commit is contained in:
Dimitar Apostolov
GitHub
parent
fe1ebea339
commit
b535575acd
18
runtime/ftplugin/elm.vim
Normal file
18
runtime/ftplugin/elm.vim
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@ -0,0 +1,18 @@
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" Elm filetype plugin file
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" Language: Elm
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" Maintainer: Andreas Scharf <as@99n.de>
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" Latest Revision: 2020-05-29
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if exists("b:did_ftplugin")
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finish
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endif
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let b:did_ftplugin = 1
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let s:cpo_save = &cpo
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set cpo&vim
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setlocal comments=s1fl:{-,mb:\ ,ex:-},:--
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setlocal commentstring=--\ %s
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let &cpo = s:cpo_save
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unlet s:cpo_save
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114
runtime/indent/elm.vim
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114
runtime/indent/elm.vim
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" Elm indent plugin file
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" Language: Elm
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" Maintainer: Andreas Scharf <as@99n.de>
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" Original Author: Joseph Hager <ajhager@gmail.com>
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" Copyright: Joseph Hager <ajhager@gmail.com>
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" License: BSD3
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" Latest Revision: 2020-05-29
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" Only load this indent file when no other was loaded.
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if exists('b:did_indent')
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finish
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endif
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let b:did_indent = 1
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" Local defaults
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setlocal expandtab
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setlocal indentexpr=GetElmIndent()
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setlocal indentkeys+=0=else,0=if,0=of,0=import,0=then,0=type,0\|,0},0\],0),=-},0=in
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setlocal nolisp
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setlocal nosmartindent
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" Only define the function once.
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if exists('*GetElmIndent')
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finish
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endif
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" Indent pairs
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function! s:FindPair(pstart, pmid, pend)
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"call search(a:pend, 'bW')
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return indent(searchpair(a:pstart, a:pmid, a:pend, 'bWn', 'synIDattr(synID(line("."), col("."), 0), "name") =~? "string\\|comment"'))
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endfunction
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function! GetElmIndent()
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let l:lnum = v:lnum - 1
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" Ident 0 if the first line of the file:
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if l:lnum == 0
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return 0
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endif
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let l:ind = indent(l:lnum)
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let l:lline = getline(l:lnum)
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let l:line = getline(v:lnum)
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" Indent if current line begins with '}':
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if l:line =~? '^\s*}'
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return s:FindPair('{', '', '}')
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" Indent if current line begins with 'else':
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elseif l:line =~# '^\s*else\>'
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if l:lline !~# '^\s*\(if\|then\)\>'
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return s:FindPair('\<if\>', '', '\<else\>')
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endif
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" Indent if current line begins with 'then':
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elseif l:line =~# '^\s*then\>'
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if l:lline !~# '^\s*\(if\|else\)\>'
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return s:FindPair('\<if\>', '', '\<then\>')
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endif
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" HACK: Indent lines in case with nearest case clause:
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elseif l:line =~# '->' && l:line !~# ':' && l:line !~# '\\'
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return indent(search('^\s*case', 'bWn')) + &shiftwidth
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" HACK: Don't change the indentation if the last line is a comment.
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elseif l:lline =~# '^\s*--'
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return l:ind
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" Align the end of block comments with the start
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elseif l:line =~# '^\s*-}'
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return indent(search('{-', 'bWn'))
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" Indent double shift after let with an empty rhs
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elseif l:lline =~# '\<let\>.*\s=$'
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return l:ind + 4 + &shiftwidth
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" Align 'in' with the parent let.
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elseif l:line =~# '^\s*in\>'
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return indent(search('^\s*let', 'bWn'))
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" Align bindings with the parent let.
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elseif l:lline =~# '\<let\>'
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return l:ind + 4
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" Align bindings with the parent in.
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elseif l:lline =~# '^\s*in\>'
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return l:ind
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endif
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" Add a 'shiftwidth' after lines ending with:
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if l:lline =~# '\(|\|=\|->\|<-\|(\|\[\|{\|\<\(of\|else\|if\|then\)\)\s*$'
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let l:ind = l:ind + &shiftwidth
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" Add a 'shiftwidth' after lines starting with type ending with '=':
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elseif l:lline =~# '^\s*type' && l:line =~# '^\s*='
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let l:ind = l:ind + &shiftwidth
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" Back to normal indent after comments:
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elseif l:lline =~# '-}\s*$'
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call search('-}', 'bW')
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let l:ind = indent(searchpair('{-', '', '-}', 'bWn', 'synIDattr(synID(line("."), col("."), 0), "name") =~? "string"'))
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" Ident some operators if there aren't any starting the last line.
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elseif l:line =~# '^\s*\(!\|&\|(\|`\|+\||\|{\|[\|,\)=' && l:lline !~# '^\s*\(!\|&\|(\|`\|+\||\|{\|[\|,\)=' && l:lline !~# '^\s*$'
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let l:ind = l:ind + &shiftwidth
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elseif l:lline ==# '' && getline(l:lnum - 1) !=# ''
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let l:ind = indent(search('^\s*\S+', 'bWn'))
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endif
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return l:ind
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endfunc
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105
runtime/syntax/elm.vim
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105
runtime/syntax/elm.vim
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@ -0,0 +1,105 @@
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" Vim syntax file
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" Language: Elm
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" Maintainer: Andreas Scharf <as@99n.de>
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" Original Author: Joseph Hager <ajhager@gmail.com>
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" Copyright: Joseph Hager <ajhager@gmail.com>
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" License: BSD3
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" Latest Revision: 2020-05-29
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if exists('b:current_syntax')
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finish
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endif
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" Keywords
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syn keyword elmConditional else if of then case
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syn keyword elmAlias alias
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syn keyword elmTypedef contained type port
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syn keyword elmImport exposing as import module where
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" Operators
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" elm/core
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syn match elmOperator contained "\(<|\||>\|||\|&&\|==\|/=\|<=\|>=\|++\|::\|+\|-\|*\|/\|//\|^\|<>\|>>\|<<\|<\|>\|%\)"
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" elm/parser
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syn match elmOperator contained "\(|.\||=\)"
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" elm/url
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syn match elmOperator contained "\(</>\|<?>\)"
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" Types
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syn match elmType "\<[A-Z][0-9A-Za-z_-]*"
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syn keyword elmNumberType number
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" Modules
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syn match elmModule "\<\([A-Z][0-9A-Za-z_'-\.]*\)\+\.[A-Za-z]"me=e-2
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syn match elmModule "^\(module\|import\)\s\+[A-Z][0-9A-Za-z_'-\.]*\(\s\+as\s\+[A-Z][0-9A-Za-z_'-\.]*\)\?\(\s\+exposing\)\?" contains=elmImport
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" Delimiters
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syn match elmDelimiter "[,;]"
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syn match elmBraces "[()[\]{}]"
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" Functions
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syn match elmTupleFunction "\((,\+)\)"
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" Comments
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syn keyword elmTodo TODO FIXME XXX contained
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syn match elmLineComment "--.*" contains=elmTodo,@spell
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syn region elmComment matchgroup=elmComment start="{-|\=" end="-}" contains=elmTodo,elmComment,@spell fold
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" Strings
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syn match elmStringEscape "\\u[0-9a-fA-F]\{4}" contained
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syn match elmStringEscape "\\[nrfvbt\\\"]" contained
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syn region elmString start="\"" skip="\\\"" end="\"" contains=elmStringEscape,@spell
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syn region elmTripleString start="\"\"\"" skip="\\\"" end="\"\"\"" contains=elmStringEscape,@spell
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syn match elmChar "'[^'\\]'\|'\\.'\|'\\u[0-9a-fA-F]\{4}'"
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" Lambda
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syn region elmLambdaFunc start="\\"hs=s+1 end="->"he=e-2
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" Debug
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syn match elmDebug "Debug.\(log\|todo\|toString\)"
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" Numbers
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syn match elmInt "-\?\<\d\+\>"
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syn match elmFloat "-\?\(\<\d\+\.\d\+\>\)"
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" Identifiers
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syn match elmTopLevelDecl "^\s*[a-zA-Z][a-zA-z0-9_]*\('\)*\s\+:\(\r\n\|\r\|\n\|\s\)\+" contains=elmOperator
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syn match elmFuncName /^\l\w*/
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" Folding
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syn region elmTopLevelTypedef start="type" end="\n\(\n\n\)\@=" contains=ALL fold
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syn region elmTopLevelFunction start="^[a-zA-Z].\+\n[a-zA-Z].\+=" end="^\(\n\+\)\@=" contains=ALL fold
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syn region elmCaseBlock matchgroup=elmCaseBlockDefinition start="^\z\(\s\+\)\<case\>" end="^\z1\@!\W\@=" end="\(\n\n\z1\@!\)\@=" end="\n\z1\@!\(\n\n\)\@=" contains=ALL fold
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syn region elmCaseItemBlock start="^\z\(\s\+\).\+->$" end="^\z1\@!\W\@=" end="\(\n\n\z1\@!\)\@=" end="\(\n\z1\S\)\@=" contains=ALL fold
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syn region elmLetBlock matchgroup=elmLetBlockDefinition start="\<let\>" end="\<in\>" contains=ALL fold
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hi def link elmFuncName Function
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hi def link elmCaseBlockDefinition Conditional
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hi def link elmCaseBlockItemDefinition Conditional
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hi def link elmLetBlockDefinition TypeDef
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hi def link elmTopLevelDecl Function
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hi def link elmTupleFunction Normal
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hi def link elmTodo Todo
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hi def link elmComment Comment
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hi def link elmLineComment Comment
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hi def link elmString String
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hi def link elmTripleString String
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hi def link elmChar String
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hi def link elmStringEscape Special
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hi def link elmInt Number
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hi def link elmFloat Float
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hi def link elmDelimiter Delimiter
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hi def link elmBraces Delimiter
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hi def link elmTypedef TypeDef
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hi def link elmImport Include
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hi def link elmConditional Conditional
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hi def link elmAlias Delimiter
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hi def link elmOperator Operator
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hi def link elmType Type
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hi def link elmNumberType Identifier
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hi def link elmLambdaFunc Function
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hi def link elmDebug Debug
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hi def link elmModule Type
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syn sync minlines=500
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let b:current_syntax = 'elm'
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