" Vim syntax file
" Copyright by Jan-Oliver Wagner
" Language: avenue
" Maintainer: Jan-Oliver Wagner <[email protected]>
" Last change: 2001 May 10

" Avenue is the ArcView built-in language. ArcView is
" a desktop GIS by ESRI. Though it is a built-in language
" and a built-in editor is provided, the use of VIM increases
" development speed.
" I use some technologies to automatically load avenue scripts
" into ArcView.

" 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

" Avenue is entirely case-insensitive.
syn case ignore

" The keywords

syn keyword aveStatement if then elseif else end break exit return
syn keyword aveStatement for each in continue while

" String

syn region aveString start=+"+ end=+"+

" Integer number
syn match aveNumber "[+-]\=\<[0-9]\+\>"

" Operator

syn keyword aveOperator or and max min xor mod by
" 'not' is a kind of a problem: Its an Operator as well as a method
" 'not' is only marked as an Operator if not applied as method
syn match aveOperator "[^\.]not[^a-zA-Z]"

" Variables

syn keyword aveFixVariables av nil self false true nl tab cr tab
syn match globalVariables "_[a-zA-Z][a-zA-Z0-9]*"
syn match aveVariables "[a-zA-Z][a-zA-Z0-9_]*"
syn match aveConst "#[A-Z][A-Z_]+"

" Comments

syn match aveComment "'.*"

" Typical Typos

" for C programmers:
syn match aveTypos "=="
syn match aveTypos "!="

" 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_ave_syn_inits")
if version < 508
let did_ave_syn_inits = 1
command -nargs=+ HiLink hi link <args>
else
command -nargs=+ HiLink hi def link <args>
endif

HiLink aveStatement Statement

HiLink aveString String
HiLink aveNumber Number

HiLink aveFixVariables Special
HiLink aveVariables Identifier
HiLink globalVariables Special
HiLink aveConst Special

HiLink aveClassMethods Function

HiLink aveOperator Operator
HiLink aveComment Comment

HiLink aveTypos Error

delcommand HiLink
endif

let b:current_syntax = "ave"