vim-patch:4ce1cb5: runtime(graphql): contribute vim-graphql to Vim core

Contribute the core of my vim-graphql project (ftplugin, indent, syntax)
to the Vim project. This replaces the basic ftplugin support that was
already in the runtime with a more complete set of filetype settings. I
can assume maintainership for all of these files.

I'll continue to maintain the higher-level embedded filetype support
separately (in vim-graphql) for now, because it's fairly complex, but we
can consider integrating that code directly into vim later.

runtime files use the MIT license.

closes: vim/vim#16273

https://github.com/vim/vim/commit/4ce1cb5bf1dc507224792543d8e56e6ab431a2b5

Co-authored-by: Jon Parise <jon@indelible.org>

1 files changed, 90 insertions, 0 deletions

diff --git a/runtime/syntax/graphql.vim b/runtime/syntax/graphql.vim
new file mode 100644
index 0000000000..01d5ca25ff
--- /dev/null
+++ b/runtime/syntax/graphql.vim
@@ -0,0 +1,90 @@
+" Vim syntax file
+" Language:	graphql
+" Maintainer:	Jon Parise <jon@indelible.org>
+" Filenames:	*.graphql *.graphqls *.gql
+" URL:		https://github.com/jparise/vim-graphql
+" License:	MIT <https://opensource.org/license/mit>
+" Last Change:	2024 Dec 21
+
+if !exists('main_syntax')
+  if exists('b:current_syntax')
+    finish
+  endif
+  let main_syntax = 'graphql'
+endif
+
+syn case match
+
+syn match graphqlComment    "#.*$" contains=@Spell
+
+syn match graphqlOperator   "=" display
+syn match graphqlOperator   "!" display
+syn match graphqlOperator   "|" display
+syn match graphqlOperator   "&" display
+syn match graphqlOperator   "\M..." display
+
+syn keyword graphqlBoolean  true false
+syn keyword graphqlNull     null
+syn match   graphqlNumber   "-\=\<\%(0\|[1-9]\d*\)\%(\.\d\+\)\=\%([eE][-+]\=\d\+\)\=\>" display
+syn region  graphqlString   start=+"+  skip=+\\\\\|\\"+  end=+"\|$+
+syn region  graphqlString   start=+"""+ skip=+\\"""+ end=+"""+
+
+syn keyword graphqlKeyword repeatable nextgroup=graphqlKeyword skipwhite
+syn keyword graphqlKeyword on nextgroup=graphqlType,graphqlDirectiveLocation skipwhite
+
+syn keyword graphqlStructure enum scalar type union nextgroup=graphqlType skipwhite
+syn keyword graphqlStructure input interface subscription nextgroup=graphqlType skipwhite
+syn keyword graphqlStructure implements nextgroup=graphqlType skipwhite
+syn keyword graphqlStructure query mutation fragment nextgroup=graphqlName skipwhite
+syn keyword graphqlStructure directive nextgroup=graphqlDirective skipwhite
+syn keyword graphqlStructure extend nextgroup=graphqlStructure skipwhite
+syn keyword graphqlStructure schema nextgroup=graphqlFold skipwhite
+
+syn match graphqlDirective  "\<@\h\w*\>"   display
+syn match graphqlVariable   "\<\$\h\w*\>"  display
+syn match graphqlName       "\<\h\w*\>"    display
+syn match graphqlType       "\<_*\u\w*\>"  display
+
+" https://spec.graphql.org/October2021/#ExecutableDirectiveLocation
+syn keyword graphqlDirectiveLocation QUERY MUTATION SUBSCRIPTION FIELD
+syn keyword graphqlDirectiveLocation FRAGMENT_DEFINITION FRAGMENT_SPREAD
+syn keyword graphqlDirectiveLocation INLINE_FRAGMENT VARIABLE_DEFINITION
+" https://spec.graphql.org/October2021/#TypeSystemDirectiveLocation
+syn keyword graphqlDirectiveLocation SCHEMA SCALAR OBJECT FIELD_DEFINITION
+syn keyword graphqlDirectiveLocation ARGUMENT_DEFINITION INTERFACE UNION
+syn keyword graphqlDirectiveLocation ENUM ENUM_VALUE INPUT_OBJECT
+syn keyword graphqlDirectiveLocation INPUT_FIELD_DEFINITION
+
+syn keyword graphqlMetaFields __schema __type __typename
+
+syn region  graphqlFold matchgroup=graphqlBraces start="{" end="}" transparent fold contains=ALLBUT,graphqlStructure
+syn region  graphqlList matchgroup=graphqlBraces start="\[" end="]" transparent contains=ALLBUT,graphqlDirective,graphqlStructure
+
+if main_syntax ==# 'graphql'
+  syn sync minlines=500
+endif
+
+hi def link graphqlComment          Comment
+hi def link graphqlOperator         Operator
+
+hi def link graphqlBraces           Delimiter
+
+hi def link graphqlBoolean          Boolean
+hi def link graphqlNull             Keyword
+hi def link graphqlNumber           Number
+hi def link graphqlString           String
+
+hi def link graphqlDirective        PreProc
+hi def link graphqlDirectiveLocation Special
+hi def link graphqlName             Identifier
+hi def link graphqlMetaFields       Special
+hi def link graphqlKeyword          Keyword
+hi def link graphqlStructure        Structure
+hi def link graphqlType             Type
+hi def link graphqlVariable         Identifier
+
+let b:current_syntax = 'graphql'
+
+if main_syntax ==# 'graphql'
+  unlet main_syntax
+endif