runtime(gleam): update filetype plugin, include new compiler and syntax script

closes: #17172

Signed-off-by: Kirill Morozov <mail2kirill@gmail.com>
Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/syntax/gleam.vim

@@ -0,0 +1,97 @@
+" Vim syntax file
+" Language:    Gleam
+" Maintainer:  Kirill Morozov <kirill@robotix.pro>
+" Based On:    https://github.com/gleam-lang/gleam.vim
+" Last Change: 2025 Apr 20
+
+if exists("b:current_syntax")
+  finish
+endif
+let b:current_syntax = "gleam"
+
+syntax case match
+
+" Keywords
+syntax keyword gleamConditional case if
+syntax keyword gleamConstant const
+syntax keyword gleamDebug echo
+syntax keyword gleamException panic assert todo
+syntax keyword gleamInclude import
+syntax keyword gleamKeyword as let use
+syntax keyword gleamStorageClass pub opaque
+syntax keyword gleamType type
+
+" Number
+"" Int
+syntax match gleamNumber "\<-\=\%(0\|\%(\d\|\d_\d\)\+\)\>"
+
+"" Binary
+syntax match gleamNumber "\<-\=0[bB]_\?\%([01]\|[01]_[01]\)\+\>"
+
+"" Octet
+syntax match gleamNumber "\<-\=0[oO]\?_\?\%(\o\|\o_\o\)\+\>"
+
+"" Hexadecimal
+syntax match gleamNumber "\<-\=0[xX]_\?\%(\x\|\x_\x\)\+\>"
+
+"" Float
+syntax match gleamFloat "\(0*[1-9][0-9_]*\|0\)\.\(0*[1-9][0-9_]*\|0\)\(e-\=0*[1-9][0-9_]*\)\="
+
+" String
+syntax region gleamString start=/"/ end=/"/ contains=gleamSpecial
+syntax match gleamSpecial '\\.' contained
+
+" Operators
+"" Basic
+syntax match gleamOperator "[-+/*]\.\=\|[%=]"
+
+"" Arrows + Pipeline
+syntax match gleamOperator "<-\|[-|]>"
+
+"" Bool
+syntax match gleamOperator "&&\|||"
+
+"" Comparison
+syntax match gleamOperator "[<>]=\=\.\=\|[=!]="
+
+"" Misc
+syntax match gleamOperator "\.\.\|<>\||"
+
+" Type
+syntax match gleamIdentifier "\<[A-Z][a-zA-Z0-9]*\>"
+
+" Attribute
+syntax match gleamPreProc "@[a-z][a-z_]*"
+
+" Function definition
+syntax keyword gleamKeyword fn nextgroup=gleamFunction skipwhite skipempty
+syntax match gleamFunction "[a-z][a-z0-9_]*\ze\s*(" skipwhite skipnl
+
+" Comments
+syntax region gleamComment start="//" end="$" contains=gleamTodo
+syntax region gleamSpecialComment start="///" end="$"
+syntax region gleamSpecialComment start="////" end="$"
+syntax keyword gleamTodo contained TODO FIXME XXX NB NOTE
+
+" Highlight groups
+highlight link gleamComment Comment
+highlight link gleamConditional Conditional
+highlight link gleamConstant Constant
+highlight link gleamDebug Debug
+highlight link gleamException Exception
+highlight link gleamFloat Float
+highlight link gleamFunction Function
+highlight link gleamIdentifier Identifier
+highlight link gleamInclude Include
+highlight link gleamKeyword Keyword
+highlight link gleamNumber Number
+highlight link gleamOperator Operator
+highlight link gleamPreProc PreProc
+highlight link gleamSpecial Special
+highlight link gleamSpecialComment SpecialComment
+highlight link gleamStorageClass StorageClass
+highlight link gleamString String
+highlight link gleamTodo Todo
+highlight link gleamType Type
+
+" vim: sw=2 sts=2 et