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108 lines
2.8 KiB
VimL
108 lines
2.8 KiB
VimL
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" Language: xml
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" Maintainer: Johannes Zellner <johannes@zellner.org>
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" Last Change: 2012 Jul 25
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" Notes: 1) does not indent pure non-xml code (e.g. embedded scripts)
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" 2) will be confused by unbalanced tags in comments
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" or CDATA sections.
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" 2009-05-26 patch by Nikolai Weibull
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" TODO: implement pre-like tags, see xml_indent_open / xml_indent_close
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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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let s:keepcpo= &cpo
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set cpo&vim
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" [-- local settings (must come before aborting the script) --]
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setlocal indentexpr=XmlIndentGet(v:lnum,1)
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setlocal indentkeys=o,O,*<Return>,<>>,<<>,/,{,}
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if !exists('b:xml_indent_open')
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let b:xml_indent_open = '.\{-}<\a'
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" pre tag, e.g. <address>
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" let b:xml_indent_open = '.\{-}<[/]\@!\(address\)\@!'
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endif
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if !exists('b:xml_indent_close')
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let b:xml_indent_close = '.\{-}</'
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" end pre tag, e.g. </address>
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" let b:xml_indent_close = '.\{-}</\(address\)\@!'
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endif
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let &cpo = s:keepcpo
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unlet s:keepcpo
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" [-- finish, if the function already exists --]
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if exists('*XmlIndentGet')
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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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fun! <SID>XmlIndentWithPattern(line, pat)
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let s = substitute('x'.a:line, a:pat, "\1", 'g')
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return strlen(substitute(s, "[^\1].*$", '', ''))
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endfun
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" [-- check if it's xml --]
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fun! <SID>XmlIndentSynCheck(lnum)
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if '' != &syntax
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let syn1 = synIDattr(synID(a:lnum, 1, 1), 'name')
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let syn2 = synIDattr(synID(a:lnum, strlen(getline(a:lnum)) - 1, 1), 'name')
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if '' != syn1 && syn1 !~ 'xml' && '' != syn2 && syn2 !~ 'xml'
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" don't indent pure non-xml code
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return 0
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elseif syn1 =~ '^xmlComment' && syn2 =~ '^xmlComment'
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" indent comments specially
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return -1
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endif
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endif
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return 1
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endfun
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" [-- return the sum of indents of a:lnum --]
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fun! <SID>XmlIndentSum(lnum, style, add)
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let line = getline(a:lnum)
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if a:style == match(line, '^\s*</')
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return (&sw *
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\ (<SID>XmlIndentWithPattern(line, b:xml_indent_open)
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\ - <SID>XmlIndentWithPattern(line, b:xml_indent_close)
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\ - <SID>XmlIndentWithPattern(line, '.\{-}/>'))) + a:add
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else
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return a:add
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endif
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endfun
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fun! XmlIndentGet(lnum, use_syntax_check)
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" Find a non-empty line above the current line.
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let lnum = prevnonblank(a:lnum - 1)
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" Hit the start of the file, use zero indent.
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if lnum == 0
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return 0
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endif
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if a:use_syntax_check
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let check_lnum = <SID>XmlIndentSynCheck(lnum)
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let check_alnum = <SID>XmlIndentSynCheck(a:lnum)
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if 0 == check_lnum || 0 == check_alnum
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return indent(a:lnum)
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elseif -1 == check_lnum || -1 == check_alnum
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return -1
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endif
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endif
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let ind = <SID>XmlIndentSum(lnum, -1, indent(lnum))
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let ind = <SID>XmlIndentSum(a:lnum, 0, ind)
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return ind
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endfun
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let &cpo = s:keepcpo
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unlet s:keepcpo
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" vim:ts=8
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