" Maintainer: Paulo Moura " Revised on: 2008.06.02 " Language: Logtalk " This Logtalk indent file is a modified version of the Prolog " indent file written by Gergely Kontra " Only load this indent file when no other was loaded. if exists("b:did_indent") finish endif let b:did_indent = 1 setlocal indentexpr=GetLogtalkIndent() setlocal indentkeys-=:,0# setlocal indentkeys+=0%,-,0;,>,0) " Only define the function once. if exists("*GetLogtalkIndent") finish endif function! GetLogtalkIndent() " Find a non-blank line above the current line. let pnum = prevnonblank(v:lnum - 1) " Hit the start of the file, use zero indent. if pnum == 0 return 0 endif let line = getline(v:lnum) let pline = getline(pnum) let ind = indent(pnum) " Previous line was comment -> use previous line's indent if pline =~ '^\s*%' retu ind endif " Check for entity opening directive on previous line if pline =~ '^\s*:-\s\(object\|protocol\|category\)\ze(.*,$' let ind = ind + &sw " Check for clause head on previous line elseif pline =~ ':-\s*\(%.*\)\?$' let ind = ind + &sw " Check for entity closing directive on previous line elseif pline =~ '^\s*:-\send_\(object\|protocol\|category\)\.\(%.*\)\?$' let ind = ind - &sw " Check for end of clause on previous line elseif pline =~ '\.\s*\(%.*\)\?$' let ind = ind - &sw endif " Check for opening conditional on previous line if pline =~ '^\s*\([(;]\|->\)' && pline !~ '\.\s*\(%.*\)\?$' && pline !~ '^.*\([)][,]\s*\(%.*\)\?$\)' let ind = ind + &sw endif " Check for closing an unclosed paren, or middle ; or -> if line =~ '^\s*\([);]\|->\)' let ind = ind - &sw endif return ind endfunction