151 lines
4.2 KiB
VimL
151 lines
4.2 KiB
VimL
" Vim indent file
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" Language: Java
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" Previous Maintainer: Toby Allsopp <toby.allsopp@peace.com>
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" Current Maintainer: Hong Xu <hong@topbug.net>
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" Homepage: http://www.vim.org/scripts/script.php?script_id=3899
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" https://github.com/xuhdev/indent-java.vim
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" Last Change: 2016 Mar 7
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" Version: 1.1
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" License: Same as Vim.
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" Copyright (c) 2012-2016 Hong Xu
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" Before 2012, this file was maintained by Toby Allsopp.
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" Only load this indent file when no other was loaded.
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if exists("b:did_indent")
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finish
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endif
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let b:did_indent = 1
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" Indent Java anonymous classes correctly.
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setlocal cindent cinoptions& cinoptions+=j1
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" The "extends" and "implements" lines start off with the wrong indent.
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setlocal indentkeys& indentkeys+=0=extends indentkeys+=0=implements
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" Set the function to do the work.
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setlocal indentexpr=GetJavaIndent()
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let b:undo_indent = "set cin< cino< indentkeys< indentexpr<"
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" Only define the function once.
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if exists("*GetJavaIndent")
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finish
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endif
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let s:keepcpo= &cpo
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set cpo&vim
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function! SkipJavaBlanksAndComments(startline)
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let lnum = a:startline
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while lnum > 1
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let lnum = prevnonblank(lnum)
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if getline(lnum) =~ '\*/\s*$'
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while getline(lnum) !~ '/\*' && lnum > 1
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let lnum = lnum - 1
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endwhile
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if getline(lnum) =~ '^\s*/\*'
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let lnum = lnum - 1
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else
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break
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endif
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elseif getline(lnum) =~ '^\s*//'
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let lnum = lnum - 1
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else
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break
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endif
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endwhile
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return lnum
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endfunction
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function GetJavaIndent()
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" Java is just like C; use the built-in C indenting and then correct a few
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" specific cases.
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let theIndent = cindent(v:lnum)
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" If we're in the middle of a comment then just trust cindent
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if getline(v:lnum) =~ '^\s*\*'
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return theIndent
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endif
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" find start of previous line, in case it was a continuation line
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let lnum = SkipJavaBlanksAndComments(v:lnum - 1)
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" If the previous line starts with '@', we should have the same indent as
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" the previous one
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if getline(lnum) =~ '^\s*@.*$'
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return indent(lnum)
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endif
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let prev = lnum
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while prev > 1
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let next_prev = SkipJavaBlanksAndComments(prev - 1)
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if getline(next_prev) !~ ',\s*$'
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break
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endif
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let prev = next_prev
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endwhile
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" Try to align "throws" lines for methods and "extends" and "implements" for
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" classes.
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if getline(v:lnum) =~ '^\s*\(throws\|extends\|implements\)\>'
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\ && getline(lnum) !~ '^\s*\(throws\|extends\|implements\)\>'
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let theIndent = theIndent + shiftwidth()
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endif
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" correct for continuation lines of "throws", "implements" and "extends"
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let cont_kw = matchstr(getline(prev),
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\ '^\s*\zs\(throws\|implements\|extends\)\>\ze.*,\s*$')
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if strlen(cont_kw) > 0
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let amount = strlen(cont_kw) + 1
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if getline(lnum) !~ ',\s*$'
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let theIndent = theIndent - (amount + shiftwidth())
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if theIndent < 0
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let theIndent = 0
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endif
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elseif prev == lnum
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let theIndent = theIndent + amount
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if cont_kw ==# 'throws'
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let theIndent = theIndent + shiftwidth()
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endif
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endif
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elseif getline(prev) =~ '^\s*\(throws\|implements\|extends\)\>'
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\ && (getline(prev) =~ '{\s*$'
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\ || getline(v:lnum) =~ '^\s*{\s*$')
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let theIndent = theIndent - shiftwidth()
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endif
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" When the line starts with a }, try aligning it with the matching {,
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" skipping over "throws", "extends" and "implements" clauses.
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if getline(v:lnum) =~ '^\s*}\s*\(//.*\|/\*.*\)\=$'
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call cursor(v:lnum, 1)
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silent normal! %
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let lnum = line('.')
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if lnum < v:lnum
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while lnum > 1
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let next_lnum = SkipJavaBlanksAndComments(lnum - 1)
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if getline(lnum) !~ '^\s*\(throws\|extends\|implements\)\>'
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\ && getline(next_lnum) !~ ',\s*$'
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break
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endif
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let lnum = prevnonblank(next_lnum)
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endwhile
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return indent(lnum)
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endif
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endif
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" Below a line starting with "}" never indent more. Needed for a method
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" below a method with an indented "throws" clause.
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let lnum = SkipJavaBlanksAndComments(v:lnum - 1)
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if getline(lnum) =~ '^\s*}\s*\(//.*\|/\*.*\)\=$' && indent(lnum) < theIndent
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let theIndent = indent(lnum)
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endif
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return theIndent
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endfunction
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let &cpo = s:keepcpo
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unlet s:keepcpo
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" vi: sw=2 et
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