sdl.vim (2829B)
1 " Vim indent file 2 " Language: SDL 3 " Maintainer: Michael Piefel <entwurf@piefel.de> 4 " Last Change: 2021 Oct 03 5 6 " Shamelessly stolen from the Vim-Script indent file 7 8 " Only load this indent file when no other was loaded. 9 if exists("b:did_indent") 10 finish 11 endif 12 let b:did_indent = 1 13 14 setlocal indentexpr=GetSDLIndent() 15 setlocal indentkeys+==~end,=~state,*<Return> 16 17 let b:undo_indent = "setl inde< indk<" 18 19 " Only define the function once. 20 if exists("*GetSDLIndent") 21 " finish 22 endif 23 24 let s:cpo_save = &cpo 25 set cpo&vim 26 27 function! GetSDLIndent() 28 " Find a non-blank line above the current line. 29 let lnum = prevnonblank(v:lnum - 1) 30 31 " At the start of the file use zero indent. 32 if lnum == 0 33 return 0 34 endif 35 36 let ind = indent(lnum) 37 let virtuality = '^\s*\(\(virtual\|redefined\|finalized\)\s\+\)\=\s*' 38 39 " Add a single space to comments which use asterisks 40 if getline(lnum) =~ '^\s*\*' 41 let ind = ind - 1 42 endif 43 if getline(v:lnum) =~ '^\s*\*' 44 let ind = ind + 1 45 endif 46 47 " Add a 'shiftwidth' after states, different blocks, decision (and alternatives), inputs 48 if (getline(lnum) =~? '^\s*\(start\|state\|system\|package\|connection\|channel\|alternative\|macro\|operator\|newtype\|select\|substructure\|decision\|generator\|refinement\|service\|method\|exceptionhandler\|asntype\|syntype\|value\|(.*):\|\(priority\s\+\)\=input\|provided\)' 49 \ || getline(lnum) =~? virtuality . '\(process\|procedure\|block\|object\)') 50 \ && getline(lnum) !~? 'end[[:alpha:]]\+;$' 51 let ind = ind + shiftwidth() 52 endif 53 54 " Subtract a 'shiftwidth' after states 55 if getline(lnum) =~? '^\s*\(stop\|return\>\|nextstate\)' 56 let ind = ind - shiftwidth() 57 endif 58 59 " Subtract a 'shiftwidth' on on end (uncompleted line) 60 if getline(v:lnum) =~? '^\s*end\>' 61 let ind = ind - shiftwidth() 62 endif 63 64 " Put each alternatives where the corresponding decision was 65 if getline(v:lnum) =~? '^\s*\((.*)\|else\):' 66 normal k 67 let ind = indent(searchpair('^\s*decision', '', '^\s*enddecision', 'bW', 68 \ 'synIDattr(synID(line("."), col("."), 0), "name") =~? "sdlString"')) 69 endif 70 71 " Put each state where the preceding state was 72 if getline(v:lnum) =~? '^\s*state\>' 73 let ind = indent(search('^\s*start', 'bW')) 74 endif 75 76 " Systems and packages are always in column 0 77 if getline(v:lnum) =~? '^\s*\(\(end\)\=system\|\(end\)\=package\)' 78 return 0 79 endif 80 81 " Put each end* where the corresponding begin was 82 if getline(v:lnum) =~? '^\s*end[[:alpha:]]' 83 normal k 84 let partner=matchstr(getline(v:lnum), '\(' . virtuality . 'end\)\@<=[[:alpha:]]\+') 85 let ind = indent(searchpair(virtuality . partner, '', '^\s*end' . partner, 'bW', 86 \ 'synIDattr(synID(line("."), col("."), 0), "name") =~? "sdlString"')) 87 endif 88 89 return ind 90 endfunction 91 92 let &cpo = s:cpo_save 93 unlet s:cpo_save 94 95 " vim:sw=2