FILE: C:\Program Files\Git\usr\share\vim\vim91\syntax\logtalk.vim

--
" Vim syntax file
"
" Language:	Logtalk
" Maintainer:   Paulo Moura 
" Last Change:  December 16, 2023



" quit when a syntax file was already loaded
if exists("b:current_syntax")
	finish
endif

let s:cpo_save = &cpo
set cpo&vim

" Logtalk is case sensitive:

syn case match


" Logtalk variables

syn match   logtalkVariable		"\<\(\u\|_\)\(\w\)*\>"


" Logtalk clause functor

syn match	logtalkOperator		":-"


" Logtalk quoted atoms and strings

syn region	logtalkString		start=+"+	skip=+\\"+	end=+"+		contains=logtalkEscapeSequence
syn region	logtalkAtom		start=+'+	skip=+\\'+	end=+'+		contains=logtalkEscapeSequence

syn match	logtalkEscapeSequence	contained	"\\\([\\abfnrtv\"\']\|\(x[a-fA-F0-9]\+\|[0-7]\+\)\\\)"


" Logtalk message sending operators

syn match	logtalkOperator		"::"
syn match	logtalkOperator		"\(0'\)\@"

syn match	logtalkBuiltIn		"\<\(for\|retract\)all\ze("

syn match	logtalkBuiltIn		"\"
syn match	logtalkKeyword		"\"
syn match	logtalkKeyword		"\"
syn match	logtalkKeyword		"\"
syn match	logtalkOperator		"->"
syn match	logtalkKeyword		"\"
syn match	logtalkKeyword		"\<\(uninstantiation\|type\|domain\|existence\|permission\|representation\|evaluation\|resource\|syntax\)_error\ze("


" Term unification

syn match	logtalkOperator		"\(0'\)\@"
syn match	logtalkOperator		"@>="


" Term creation and decomposition

syn match	logtalkKeyword		"\"


" Arithmetic evaluation

syn match	logtalkOperator		"\"


" Arithmetic comparison

syn match	logtalkOperator		"=:="
syn match	logtalkOperator		"=\\="
syn match	logtalkOperator		"\(0'\)\@"
syn match	logtalkOperator		">="


" Stream selection and control

syn match	logtalkKeyword		"\<\(curren\|se\)t_\(in\|out\)put\ze("
syn match	logtalkKeyword		"\"
syn match	logtalkKeyword		"\"
syn match	logtalkKeyword		"\"


" Term input/output

syn match	logtalkKeyword		"\"


" Atomic term processing

syn match	logtalkKeyword		"\"


" Sorting

syn match	logtalkKeyword		"\<\(key\)\?sort\ze("


" Evaluable functors

syn match	logtalkOperator		"\(0'\)\@"
syn match	logtalkKeyword		"\"
syn match	logtalkKeyword		"\"
syn match	logtalkKeyword		"\"
syn match	logtalkKeyword		"\"
syn match	logtalkKeyword		"\>"
syn match	logtalkOperator		"<<"
syn match	logtalkOperator		"/\\"
syn match	logtalkOperator		"\\/"
syn match	logtalkOperator		"0'\@"
syn match	logtalkNumber		"\<\d\+\.\d\+\>"
syn match	logtalkNumber		"\<\d\+[eE][-+]\=\d\+\>"
syn match	logtalkNumber		"\<\d\+\.\d\+[eE][-+]\=\d\+\>"
syn match	logtalkNumber		"0'[\\]\?."
syn match	logtalkNumber		"\<0b[0-1]\+\>"
syn match	logtalkNumber		"\<0o\o\+\>"
syn match	logtalkNumber		"\<0x\x\+\>"


" Logtalk end-of-clause

syn match	logtalkOperator		"\(0'\)\@--