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Diffstat (limited to 'runtime/indent/sdl.vim')
-rw-r--r-- | runtime/indent/sdl.vim | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/runtime/indent/sdl.vim b/runtime/indent/sdl.vim new file mode 100644 index 0000000..6ce30b6 --- /dev/null +++ b/runtime/indent/sdl.vim @@ -0,0 +1,93 @@ +" Vim indent file +" Language: SDL +" Maintainer: Michael Piefel <entwurf@piefel.de> +" Last Change: 10 December 2011 + +" Shamelessly stolen from the Vim-Script indent file + +" Only load this indent file when no other was loaded. +if exists("b:did_indent") + finish +endif +let b:did_indent = 1 + +setlocal indentexpr=GetSDLIndent() +setlocal indentkeys+==~end,=~state,*<Return> + +" Only define the function once. +if exists("*GetSDLIndent") +" finish +endif + +let s:cpo_save = &cpo +set cpo&vim + +function! GetSDLIndent() + " Find a non-blank line above the current line. + let lnum = prevnonblank(v:lnum - 1) + + " At the start of the file use zero indent. + if lnum == 0 + return 0 + endif + + let ind = indent(lnum) + let virtuality = '^\s*\(\(virtual\|redefined\|finalized\)\s\+\)\=\s*' + + " Add a single space to comments which use asterisks + if getline(lnum) =~ '^\s*\*' + let ind = ind - 1 + endif + if getline(v:lnum) =~ '^\s*\*' + let ind = ind + 1 + endif + + " Add a 'shiftwidth' after states, different blocks, decision (and alternatives), inputs + 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\)' + \ || getline(lnum) =~? virtuality . '\(process\|procedure\|block\|object\)') + \ && getline(lnum) !~? 'end[[:alpha:]]\+;$' + let ind = ind + shiftwidth() + endif + + " Subtract a 'shiftwidth' after states + if getline(lnum) =~? '^\s*\(stop\|return\>\|nextstate\)' + let ind = ind - shiftwidth() + endif + + " Subtract a 'shiftwidth' on on end (uncompleted line) + if getline(v:lnum) =~? '^\s*end\>' + let ind = ind - shiftwidth() + endif + + " Put each alternatives where the corresponding decision was + if getline(v:lnum) =~? '^\s*\((.*)\|else\):' + normal k + let ind = indent(searchpair('^\s*decision', '', '^\s*enddecision', 'bW', + \ 'synIDattr(synID(line("."), col("."), 0), "name") =~? "sdlString"')) + endif + + " Put each state where the preceding state was + if getline(v:lnum) =~? '^\s*state\>' + let ind = indent(search('^\s*start', 'bW')) + endif + + " Systems and packages are always in column 0 + if getline(v:lnum) =~? '^\s*\(\(end\)\=system\|\(end\)\=package\)' + return 0 + endif + + " Put each end* where the corresponding begin was + if getline(v:lnum) =~? '^\s*end[[:alpha:]]' + normal k + let partner=matchstr(getline(v:lnum), '\(' . virtuality . 'end\)\@<=[[:alpha:]]\+') + let ind = indent(searchpair(virtuality . partner, '', '^\s*end' . partner, 'bW', + \ 'synIDattr(synID(line("."), col("."), 0), "name") =~? "sdlString"')) + endif + + return ind +endfunction + +let &cpo = s:cpo_save +unlet s:cpo_save + +" vim:sw=2 |