" Vim indent file " Language: Java " Previous Maintainer: Toby Allsopp " Current Maintainer: Hong Xu " Last Change: 2012 May 18 " Version: 1.0 " License: Same as Vim. " Copyright (c) 2012 Hong Xu " Before 2012, this file is maintained by Toby Allsopp. " Only load this indent file when no other was loaded. if exists("b:did_indent") finish endif let b:did_indent = 1 " Indent Java anonymous classes correctly. setlocal cindent cinoptions& cinoptions+=j1 " The "extends" and "implements" lines start off with the wrong indent. setlocal indentkeys& indentkeys+=0=extends indentkeys+=0=implements " Set the function to do the work. setlocal indentexpr=GetJavaIndent() let b:undo_indent = "set cin< cino< indentkeys< indentexpr<" " Only define the function once. if exists("*GetJavaIndent") finish endif let s:keepcpo= &cpo set cpo&vim function! SkipJavaBlanksAndComments(startline) let lnum = a:startline while lnum > 1 let lnum = prevnonblank(lnum) if getline(lnum) =~ '\*/\s*$' while getline(lnum) !~ '/\*' && lnum > 1 let lnum = lnum - 1 endwhile if getline(lnum) =~ '^\s*/\*' let lnum = lnum - 1 else break endif elseif getline(lnum) =~ '^\s*//' let lnum = lnum - 1 else break endif endwhile return lnum endfunction function GetJavaIndent() " Java is just like C; use the built-in C indenting and then correct a few " specific cases. let theIndent = cindent(v:lnum) " If we're in the middle of a comment then just trust cindent if getline(v:lnum) =~ '^\s*\*' return theIndent endif " find start of previous line, in case it was a continuation line let lnum = SkipJavaBlanksAndComments(v:lnum - 1) " If the previous line starts with '@', we should have the same indent as " the previous one if getline(lnum) =~ '^\s*@\S\+\s*$' return indent(lnum) endif let prev = lnum while prev > 1 let next_prev = SkipJavaBlanksAndComments(prev - 1) if getline(next_prev) !~ ',\s*$' break endif let prev = next_prev endwhile " Try to align "throws" lines for methods and "extends" and "implements" for " classes. if getline(v:lnum) =~ '^\s*\(extends\|implements\)\>' \ && getline(lnum) !~ '^\s*\(extends\|implements\)\>' let theIndent = theIndent + &sw endif " correct for continuation lines of "throws", "implements" and "extends" let cont_kw = matchstr(getline(prev), \ '^\s*\zs\(throws\|implements\|extends\)\>\ze.*,\s*$') if strlen(cont_kw) > 0 let amount = strlen(cont_kw) + 1 if getline(lnum) !~ ',\s*$' let theIndent = theIndent - (amount + &sw) if theIndent < 0 let theIndent = 0 endif elseif prev == lnum let theIndent = theIndent + amount if cont_kw ==# 'throws' let theIndent = theIndent + &sw endif endif elseif getline(prev) =~ '^\s*\(throws\|implements\|extends\)\>' \ && (getline(prev) =~ '{\s*$' \ || getline(v:lnum) =~ '^\s*{\s*$') let theIndent = theIndent - &sw endif " When the line starts with a }, try aligning it with the matching {, " skipping over "throws", "extends" and "implements" clauses. if getline(v:lnum) =~ '^\s*}\s*\(//.*\|/\*.*\)\=$' call cursor(v:lnum, 1) silent normal % let lnum = line('.') if lnum < v:lnum while lnum > 1 let next_lnum = SkipJavaBlanksAndComments(lnum - 1) if getline(lnum) !~ '^\s*\(throws\|extends\|implements\)\>' \ && getline(next_lnum) !~ ',\s*$' break endif let lnum = prevnonblank(next_lnum) endwhile return indent(lnum) endif endif " Below a line starting with "}" never indent more. Needed for a method " below a method with an indented "throws" clause. let lnum = SkipJavaBlanksAndComments(v:lnum - 1) if getline(lnum) =~ '^\s*}\s*\(//.*\|/\*.*\)\=$' && indent(lnum) < theIndent let theIndent = indent(lnum) endif return theIndent endfunction let &cpo = s:keepcpo unlet s:keepcpo " vi: sw=2 et