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-rw-r--r--runtime/indent/xml.vim88
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diff --git a/runtime/indent/xml.vim b/runtime/indent/xml.vim
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+" Language: xml
+" Maintainer: Johannes Zellner <johannes@zellner.org>
+" Last Change: Tue, 27 Apr 2004 14:54:59 CEST
+" Notes: 1) does not indent pure non-xml code (e.g. embedded scripts)
+" 2) will be confused by unbalanced tags in comments
+" or CDATA sections.
+" TODO: implement pre-like tags, see xml_indent_open / xml_indent_close
+
+" Only load this indent file when no other was loaded.
+if exists("b:did_indent")
+ finish
+endif
+let b:did_indent = 1
+
+" [-- local settings (must come before aborting the script) --]
+setlocal indentexpr=XmlIndentGet(v:lnum,1)
+setlocal indentkeys=o,O,*<Return>,<>>,<<>,/,{,}
+
+set cpo-=C
+
+if !exists('b:xml_indent_open')
+ let b:xml_indent_open = '.\{-}<\a'
+ " pre tag, e.g. <address>
+ " let b:xml_indent_open = '.\{-}<[/]\@!\(address\)\@!'
+endif
+
+if !exists('b:xml_indent_close')
+ let b:xml_indent_close = '.\{-}</'
+ " end pre tag, e.g. </address>
+ " let b:xml_indent_close = '.\{-}</\(address\)\@!'
+endif
+
+" [-- finish, if the function already exists --]
+if exists('*XmlIndentGet') | finish | endif
+
+fun! <SID>XmlIndentWithPattern(line, pat)
+ let s = substitute('x'.a:line, a:pat, "\1", 'g')
+ return strlen(substitute(s, "[^\1].*$", '', ''))
+endfun
+
+" [-- check if it's xml --]
+fun! <SID>XmlIndentSynCheck(lnum)
+ if '' != &syntax
+ let syn1 = synIDattr(synID(a:lnum, 1, 1), 'name')
+ let syn2 = synIDattr(synID(a:lnum, strlen(getline(a:lnum)) - 1, 1), 'name')
+ if '' != syn1 && syn1 !~ 'xml' && '' != syn2 && syn2 !~ 'xml'
+ " don't indent pure non-xml code
+ return 0
+ endif
+ endif
+ return 1
+endfun
+
+" [-- return the sum of indents of a:lnum --]
+fun! <SID>XmlIndentSum(lnum, style, add)
+ let line = getline(a:lnum)
+ if a:style == match(line, '^\s*</')
+ return (&sw *
+ \ (<SID>XmlIndentWithPattern(line, b:xml_indent_open)
+ \ - <SID>XmlIndentWithPattern(line, b:xml_indent_close)
+ \ - <SID>XmlIndentWithPattern(line, '.\{-}/>'))) + a:add
+ else
+ return a:add
+ endif
+endfun
+
+fun! XmlIndentGet(lnum, use_syntax_check)
+ " Find a non-empty line above the current line.
+ let lnum = prevnonblank(a:lnum - 1)
+
+ " Hit the start of the file, use zero indent.
+ if lnum == 0
+ return 0
+ endif
+
+ if a:use_syntax_check
+ if 0 == <SID>XmlIndentSynCheck(lnum) || 0 == <SID>XmlIndentSynCheck(a:lnum)
+ return indent(a:lnum)
+ endif
+ endif
+
+ let ind = <SID>XmlIndentSum(lnum, -1, indent(lnum))
+ let ind = <SID>XmlIndentSum(a:lnum, 0, ind)
+
+ return ind
+endfun
+
+" vim:ts=8