2 " Maintainer: Johannes Zellner <johannes@zellner.org>
3 " Last Change: 2009-05-26 00:17:25
4 " Notes: 1) does not indent pure non-xml code (e.g. embedded scripts)
5 " 2) will be confused by unbalanced tags in comments
7 " 2009-05-26 patch by Nikolai Weibull
8 " TODO: implement pre-like tags, see xml_indent_open / xml_indent_close
10 " Only load this indent file when no other was loaded.
11 if exists("b:did_indent")
16 " [-- local settings (must come before aborting the script) --]
17 setlocal indentexpr=XmlIndentGet(v:lnum,1)
18 setlocal indentkeys=o,O,*<Return>,<>>,<<>,/,{,}
22 if !exists('b:xml_indent_open')
23 let b:xml_indent_open = '.\{-}<\a'
24 " pre tag, e.g. <address>
25 " let b:xml_indent_open = '.\{-}<[/]\@!\(address\)\@!'
28 if !exists('b:xml_indent_close')
29 let b:xml_indent_close = '.\{-}</'
30 " end pre tag, e.g. </address>
31 " let b:xml_indent_close = '.\{-}</\(address\)\@!'
34 " [-- finish, if the function already exists --]
35 if exists('*XmlIndentGet') | finish | endif
37 fun! <SID>XmlIndentWithPattern(line, pat)
38 let s = substitute('x'.a:line, a:pat, "\1", 'g')
39 return strlen(substitute(s, "[^\1].*$", '', ''))
42 " [-- check if it's xml --]
43 fun! <SID>XmlIndentSynCheck(lnum)
45 let syn1 = synIDattr(synID(a:lnum, 1, 1), 'name')
46 let syn2 = synIDattr(synID(a:lnum, strlen(getline(a:lnum)) - 1, 1), 'name')
47 if '' != syn1 && syn1 !~ 'xml' && '' != syn2 && syn2 !~ 'xml'
48 " don't indent pure non-xml code
50 elseif syn1 =~ '^xmlComment' && syn2 =~ '^xmlComment'
51 " indent comments specially
58 " [-- return the sum of indents of a:lnum --]
59 fun! <SID>XmlIndentSum(lnum, style, add)
60 let line = getline(a:lnum)
61 if a:style == match(line, '^\s*</')
63 \ (<SID>XmlIndentWithPattern(line, b:xml_indent_open)
64 \ - <SID>XmlIndentWithPattern(line, b:xml_indent_close)
65 \ - <SID>XmlIndentWithPattern(line, '.\{-}/>'))) + a:add
71 fun! XmlIndentGet(lnum, use_syntax_check)
72 " Find a non-empty line above the current line.
73 let lnum = prevnonblank(a:lnum - 1)
75 " Hit the start of the file, use zero indent.
81 let check_lnum = <SID>XmlIndentSynCheck(lnum)
82 let check_alnum = <SID>XmlIndentSynCheck(a:lnum)
83 if 0 == check_lnum || 0 == check_alnum
85 elseif -1 == check_lnum || -1 == check_alnum
90 let ind = <SID>XmlIndentSum(lnum, -1, indent(lnum))
91 let ind = <SID>XmlIndentSum(a:lnum, 0, ind)