1" Vim indent file 2" Language: Eiffel 3" Maintainer: Jocelyn Fiat <eiffel@djoce.net> 4" Previous-Maintainer: David Clarke <gadicath@dishevelled.net> 5" $Date: 2004/12/09 21:33:52 $ 6" $Revision: 1.3 $ 7" URL: http://www.djoce.net/page/vim/ 8" Last Change: 2004 Sept 14 : removed specific value for tab (sw) 9 10" Only load this indent file when no other was loaded. 11if exists("b:did_indent") 12 finish 13endif 14let b:did_indent = 1 15 16setlocal indentexpr=GetEiffelIndent() 17setlocal nolisp 18setlocal nosmartindent 19setlocal nocindent 20setlocal autoindent 21setlocal comments=:-- 22setlocal indentkeys+==end,=else,=ensure,=require,=check,=loop,=until 23setlocal indentkeys+==creation,=feature,=inherit,=class,=is,=redefine,=rename,=variant 24setlocal indentkeys+==invariant,=do,=local,=export 25 26" Define some stuff 27" keywords grouped by indenting 28let s:trust_user_indent = '\(+\)\(\s*\(--\).*\)\=$' 29let s:relative_indent = '^\s*\(deferred\|class\|feature\|creation\|inherit\|loop\|from\|until\|if\|else\|elseif\|ensure\|require\|check\|do\|local\|invariant\|variant\|rename\|redefine\|do\|export\)\>' 30let s:outdent = '^\s*\(else\|invariant\|variant\|do\|require\|until\|loop\|local\)\>' 31let s:no_indent = '^\s*\(class\|feature\|creation\|inherit\)\>' 32let s:single_dent = '^[^-]\+[[:alnum:]]\+ is\(\s*\(--\).*\)\=$' 33let s:inheritance_dent = '\s*\(redefine\|rename\|export\)\>' 34 35 36" Only define the function once. 37if exists("*GetEiffelIndent") 38 finish 39endif 40 41function GetEiffelIndent() 42 43 " Eiffel Class indenting 44 " 45 " Find a non-blank line above the current line. 46 let lnum = prevnonblank(v:lnum - 1) 47 48 " At the start of the file use zero indent. 49 if lnum == 0 50 return 0 51 endif 52 53 " trust the user's indenting 54 if getline(lnum) =~ s:trust_user_indent 55 return -1 56 endif 57 58 " Add a 'shiftwidth' after lines that start with an indent word 59 let ind = indent(lnum) 60 if getline(lnum) =~ s:relative_indent 61 let ind = ind + &sw 62 endif 63 64 " Indent to single indent 65 if getline(v:lnum) =~ s:single_dent && getline(v:lnum) !~ s:relative_indent 66 \ && getline(v:lnum) !~ '\s*\<\(and\|or\|implies\)\>' 67 let ind = &sw 68 endif 69 70 " Indent to double indent 71 if getline(v:lnum) =~ s:inheritance_dent 72 let ind = 2 * &sw 73 endif 74 75 " Indent line after the first line of the function definition 76 if getline(lnum) =~ s:single_dent 77 let ind = ind + &sw 78 endif 79 80 " The following should always be at the start of a line, no indenting 81 if getline(v:lnum) =~ s:no_indent 82 let ind = 0 83 endif 84 85 " Subtract a 'shiftwidth', if this isn't the first thing after the 'is' 86 " or first thing after the 'do' 87 if getline(v:lnum) =~ s:outdent && getline(v:lnum - 1) !~ s:single_dent 88 \ && getline(v:lnum - 1) !~ '^\s*do\>' 89 let ind = ind - &sw 90 endif 91 92 " Subtract a shiftwidth for end statements 93 if getline(v:lnum) =~ '^\s*end\>' 94 let ind = ind - &sw 95 endif 96 97 " set indent of zero end statements that are at an indent of 3, this should 98 " only ever be the class's end. 99 if getline(v:lnum) =~ '^\s*end\>' && ind == &sw 100 let ind = 0 101 endif 102 103 return ind 104endfunction 105 106" vim:sw=2 107