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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 02:44:24 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 02:44:24 +0000
commit8baab3c8d7a6f22888bd581cd5c6098fd2e4b5a8 (patch)
tree3537e168b860f2742f6029d70501b5ed7d15d345 /runtime/autoload/xmlformat.vim
parentInitial commit. (diff)
downloadvim-upstream.tar.xz
vim-upstream.zip
Adding upstream version 2:8.1.0875.upstream/2%8.1.0875upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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-rw-r--r--runtime/autoload/xmlformat.vim115
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diff --git a/runtime/autoload/xmlformat.vim b/runtime/autoload/xmlformat.vim
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+" Vim plugin for formatting XML
+" Last Change: Thu, 07 Dec 2018
+" Version: 0.1
+" Author: Christian Brabandt <cb@256bit.org>
+" Repository: https://github.com/chrisbra/vim-xml-ftplugin
+" License: VIM License
+" Documentation: see :h xmlformat.txt (TODO!)
+" ---------------------------------------------------------------------
+" Load Once: {{{1
+if exists("g:loaded_xmlformat") || &cp
+ finish
+endif
+let g:loaded_xmlformat = 1
+let s:keepcpo = &cpo
+set cpo&vim
+
+" Main function: Format the input {{{1
+func! xmlformat#Format()
+ " only allow reformatting through the gq command
+ " (e.g. Vim is in normal mode)
+ if mode() != 'n'
+ " do not fall back to internal formatting
+ return 0
+ endif
+ let sw = shiftwidth()
+ let prev = prevnonblank(v:lnum-1)
+ let s:indent = indent(prev)/sw
+ let result = []
+ let lastitem = prev ? getline(prev) : ''
+ let is_xml_decl = 0
+ " split on `<`, but don't split on very first opening <
+ for item in split(join(getline(v:lnum, (v:lnum + v:count - 1))), '.\@<=[>]\zs')
+ if s:EndTag(item)
+ let s:indent = s:DecreaseIndent()
+ call add(result, s:Indent(item))
+ elseif s:EmptyTag(lastitem)
+ call add(result, s:Indent(item))
+ elseif s:StartTag(lastitem) && s:IsTag(item)
+ let s:indent += 1
+ call add(result, s:Indent(item))
+ else
+ if !s:IsTag(item)
+ " Simply split on '<'
+ let t=split(item, '.<\@=\zs')
+ let s:indent+=1
+ call add(result, s:Indent(t[0]))
+ let s:indent = s:DecreaseIndent()
+ call add(result, s:Indent(t[1]))
+ else
+ call add(result, s:Indent(item))
+ endif
+ endif
+ let lastitem = item
+ endfor
+
+ if !empty(result)
+ exe v:lnum. ",". (v:lnum + v:count - 1). 'd'
+ call append(v:lnum - 1, result)
+ " Might need to remove the last line, if it became empty because of the
+ " append() call
+ let last = v:lnum + len(result)
+ if getline(last) is ''
+ exe last. 'd'
+ endif
+ endif
+
+ " do not run internal formatter!
+ return 0
+endfunc
+" Check if given tag is XML Declaration header {{{1
+func! s:IsXMLDecl(tag)
+ return a:tag =~? '^\s*<?xml\s\?\%(version="[^"]*"\)\?\s\?\%(encoding="[^"]*"\)\? ?>\s*$'
+endfunc
+" Return tag indented by current level {{{1
+func! s:Indent(item)
+ return repeat(' ', shiftwidth()*s:indent). s:Trim(a:item)
+endfu
+" Return item trimmed from leading whitespace {{{1
+func! s:Trim(item)
+ if exists('*trim')
+ return trim(a:item)
+ else
+ return matchstr(a:item, '\S\+.*')
+ endif
+endfunc
+" Check if tag is a new opening tag <tag> {{{1
+func! s:StartTag(tag)
+ let is_comment = s:IsComment(a:tag)
+ return a:tag =~? '^\s*<[^/?]' && !is_comment
+endfunc
+func! s:IsComment(tag)
+ return a:tag =~? '<!--'
+endfunc
+" Remove one level of indentation {{{1
+func! s:DecreaseIndent()
+ return (s:indent > 0 ? s:indent - 1 : 0)
+endfunc
+" Check if tag is a closing tag </tag> {{{1
+func! s:EndTag(tag)
+ return a:tag =~? '^\s*</'
+endfunc
+" Check that the tag is actually a tag and not {{{1
+" something like "foobar</foobar>"
+func! s:IsTag(tag)
+ return s:Trim(a:tag)[0] == '<'
+endfunc
+" Check if tag is empty <tag/> {{{1
+func! s:EmptyTag(tag)
+ return a:tag =~ '/>\s*$'
+endfunc
+" Restoration And Modelines: {{{1
+let &cpo= s:keepcpo
+unlet s:keepcpo
+" Modeline {{{1
+" vim: fdm=marker fdl=0 ts=2 et sw=0 sts=-1