" Maintainer	: Nikolai 'pcp' Weibull <da.box@home.se>
" URL		: http://www.pcppopper.org/
" Revised on	: Sun, 16 Sep 2001 19:41:11 +0200

" Only load this indent file when no other was loaded.
if exists("b:did_indent")
    finish
endif

let b:did_indent = 1

setlocal indentexpr=GetYaccIndent()
setlocal indentkeys=!^F,o,O

" Only define the function once.
if exists("*GetYaccIndent")
    finish
endif

function GetYaccIndent()
    if v:lnum == 1
	return 0
    endif

    let ind = indent(v:lnum - 1)
    let line = getline(v:lnum - 1)

    if line == ''
	let ind = 0
    elseif line =~ '^\w\+\s*:'
	let ind = ind + matchend(line, '^\w\+\s*')
    elseif line =~ '^\s*;'
	let ind = 0
    else
	let ind = indent(v:lnum)
    endif

    return ind
endfunction

" vim: set sw=4 sts=4: