1" Vim indent file 2" Language: RPL/2 3" Version: 0.2 4" Last Change: 2005 Mar 28 5" Maintainer: BERTRAND Jo�l <rpl2@free.fr> 6 7" Only load this indent file when no other was loaded. 8if exists("b:did_indent") 9 finish 10endif 11let b:did_indent = 1 12 13setlocal autoindent 14setlocal indentkeys+==~end,=~case,=~if,=~then,=~else,=~do,=~until,=~while,=~repeat,=~select,=~default,=~for,=~start,=~next,=~step,<<>,<>> 15 16" Define the appropriate indent function but only once 17setlocal indentexpr=RplGetFreeIndent() 18if exists("*RplGetFreeIndent") 19 finish 20endif 21 22let b:undo_indent = "set ai< indentkeys< indentexpr<" 23 24function RplGetIndent(lnum) 25 let ind = indent(a:lnum) 26 let prevline=getline(a:lnum) 27 " Strip tail comment 28 let prevstat=substitute(prevline, '!.*$', '', '') 29 30 " Add a shiftwidth to statements following if, iferr, then, else, elseif, 31 " case, select, default, do, until, while, repeat, for, start 32 if prevstat =~? '\<\(if\|iferr\|do\|while\)\>' && prevstat =~? '\<end\>' 33 elseif prevstat =~? '\(^\|\s\+\)<<\($\|\s\+\)' && prevstat =~? '\s\+>>\($\|\s\+\)' 34 elseif prevstat =~? '\<\(if\|iferr\|then\|else\|elseif\|select\|case\|do\|until\|while\|repeat\|for\|start\|default\)\>' || prevstat =~? '\(^\|\s\+\)<<\($\|\s\+\)' 35 let ind = ind + &sw 36 endif 37 38 " Subtract a shiftwidth from then, else, elseif, end, until, repeat, next, 39 " step 40 let line = getline(v:lnum) 41 if line =~? '^\s*\(then\|else\|elseif\|until\|repeat\|next\|step\|default\|end\)\>' 42 let ind = ind - &sw 43 elseif line =~? '^\s*>>\($\|\s\+\)' 44 let ind = ind - &sw 45 endif 46 47 return ind 48endfunction 49 50function RplGetFreeIndent() 51 " Find the previous non-blank line 52 let lnum = prevnonblank(v:lnum - 1) 53 54 " Use zero indent at the top of the file 55 if lnum == 0 56 return 0 57 endif 58 59 let ind=RplGetIndent(lnum) 60 return ind 61endfunction 62 63" vim:sw=2 tw=130 64