" Vim syntax file
" Language: Latte
" Maintainer: Nick Moffitt, <[email protected]>
" Last Change: 14 June, 2000
"
" Notes:
" I based this on the TeX and Scheme syntax files (but mostly scheme).
" See http://www.latte.org for info on the language.

" For version 5.x: Clear all syntax items
" For version 6.x: Quit when a syntax file was already loaded
if version < 600
syntax clear
elseif exists("b:current_syntax")
finish
endif

syn match latteError "[{}\\]"
syn match latteOther "\\{"
syn match latteOther "\\}"
syn match latteOther "\\\\"

if version < 600
set iskeyword=33,43,45,48-57,63,65-90,95,97-122,_
else
setlocal iskeyword=33,43,45,48-57,63,65-90,95,97-122,_
endif

syn region latteVar matchgroup=SpecialChar start=!\\[A-Za-z_]!rs=s+1 end=![^A-Za-z0-9?!+_-]!me=e-1 contains=ALLBUT,latteNumber,latteOther
syn region latteVar matchgroup=SpecialChar start=!\\[=\&][A-Za-z_]!rs=s+2 end=![^A-Za-z0-9?!+_-]!me=e-1 contains=ALLBUT,latteNumber,latteOther
syn region latteString start=+\\"+ skip=+\\\\"+ end=+\\"+

syn region latteGroup matchgroup=Delimiter start="{" skip="\\[{}]" matchgroup=Delimiter end="}" contains=ALLBUT,latteSyntax

syn region latteUnquote matchgroup=Delimiter start="\\,{" skip="\\[{}]" matchgroup=Delimiter end="}" contains=ALLBUT,latteSyntax
syn region latteSplice matchgroup=Delimiter start="\\,@{" skip="\\[{}]" matchgroup=Delimiter end="}" contains=ALLBUT,latteSyntax
syn region latteQuote matchgroup=Delimiter start="\\'{" skip="\\[{}]" matchgroup=Delimiter end="}"
syn region latteQuote matchgroup=Delimiter start="\\`{" skip="\\[{}]" matchgroup=Delimiter end="}" contains=latteUnquote,latteSplice

syn match latteOperator '\\/'
syn match latteOperator '='

syn match latteComment "\\;.*$"

" This was gathered by slurping in the index.

syn keyword latteSyntax __FILE__ __latte-version__ contained
syn keyword latteSyntax _bal-tag _pre _tag add and append apply back contained
syn keyword latteSyntax caar cadr car cdar cddr cdr ceil compose contained
syn keyword latteSyntax concat cons def defmacro divide downcase contained
syn keyword latteSyntax empty? equal? error explode file-contents contained
syn keyword latteSyntax floor foreach front funcall ge? getenv contained
syn keyword latteSyntax greater-equal? greater? group group? gt? html contained
syn keyword latteSyntax if include lambda le? length less-equal? contained
syn keyword latteSyntax less? let lmap load-file load-library lt? macro contained
syn keyword latteSyntax member? modulo multiply not nth operator? contained
syn keyword latteSyntax or ordinary quote process-output push-back contained
syn keyword latteSyntax push-front quasiquote quote random rdc reverse contained
syn keyword latteSyntax set! snoc splicing unquote strict-html4 contained
syn keyword latteSyntax string-append string-ge? string-greater-equal? contained
syn keyword latteSyntax string-greater? string-gt? string-le? contained
syn keyword latteSyntax string-less-equal? string-less? string-lt? contained
syn keyword latteSyntax string? subseq substr subtract contained
syn keyword latteSyntax upcase useless warn while zero? contained


" If it's good enough for scheme...

syn sync match matchPlace grouphere NONE "^[^ \t]"
" ... i.e. synchronize on a line that starts at the left margin

" Define the default highlighting.
" For version 5.7 and earlier: only when not done already
" For version 5.8 and later: only when an item doesn't have highlighting yet
if version >= 508 || !exists("did_latte_syntax_inits")
if version < 508
let did_latte_syntax_inits = 1
command -nargs=+ HiLink hi link <args>
else
command -nargs=+ HiLink hi def link <args>
endif

HiLink latteSyntax Statement
HiLink latteVar Function

HiLink latteString String
HiLink latteQuote String

HiLink latteDelimiter Delimiter
HiLink latteOperator Operator

HiLink latteComment Comment
HiLink latteError Error

delcommand HiLink
endif

let b:current_syntax = "latte"