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@ -1,6 +1,6 @@
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" Vim plugin for formatting XML
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" Last Change: 2019 Oct 24
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" Version: 0.2
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" Last Change: 2020 Jan 06
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" Version: 0.3
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" Author: Christian Brabandt <cb@256bit.org>
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" Repository: https://github.com/chrisbra/vim-xml-ftplugin
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" License: VIM License
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@ -15,7 +15,7 @@ let s:keepcpo = &cpo
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set cpo&vim
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" Main function: Format the input {{{1
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func! xmlformat#Format()
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func! xmlformat#Format() abort
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" only allow reformatting through the gq command
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" (e.g. Vim is in normal mode)
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if mode() != 'n'
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@ -40,14 +40,16 @@ func! xmlformat#Format()
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continue
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elseif line !~# '<[/]\?[^>]*>'
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let nextmatch = match(list, '<[/]\?[^>]*>', current)
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let line .= join(list[(current + 1):(nextmatch-1)], "\n")
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call remove(list, current+1, nextmatch-1)
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if nextmatch > -1
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let line .= ' '. join(list[(current + 1):(nextmatch-1)], " ")
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call remove(list, current+1, nextmatch-1)
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endif
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endif
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" split on `>`, but don't split on very first opening <
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" this means, items can be like ['<tag>', 'tag content</tag>']
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for item in split(line, '.\@<=[>]\zs')
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if s:EndTag(item)
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let s:indent = s:DecreaseIndent()
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call s:DecreaseIndent()
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call add(result, s:Indent(item))
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elseif s:EmptyTag(lastitem)
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call add(result, s:Indent(item))
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@ -59,13 +61,23 @@ func! xmlformat#Format()
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" Simply split on '<', if there is one,
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" but reformat according to &textwidth
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let t=split(item, '.<\@=\zs')
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" if the content fits well within a single line, add it there
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" so that the output looks like this:
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"
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" <foobar>1</foobar>
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if s:TagContent(lastitem) is# s:TagContent(t[1]) && strlen(result[-1]) + strlen(item) <= s:Textwidth()
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let result[-1] .= item
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let lastitem = t[1]
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continue
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endif
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" t should only contain 2 items, but just be safe here
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if s:IsTag(lastitem)
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let s:indent+=1
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endif
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let result+=s:FormatContent([t[0]])
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if s:EndTag(t[1])
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let s:indent = s:DecreaseIndent()
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call s:DecreaseIndent()
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endif
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"for y in t[1:]
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let result+=s:FormatContent(t[1:])
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@ -97,15 +109,15 @@ func! xmlformat#Format()
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return 0
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endfunc
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" Check if given tag is XML Declaration header {{{1
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func! s:IsXMLDecl(tag)
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func! s:IsXMLDecl(tag) abort
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return a:tag =~? '^\s*<?xml\s\?\%(version="[^"]*"\)\?\s\?\%(encoding="[^"]*"\)\? ?>\s*$'
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endfunc
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" Return tag indented by current level {{{1
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func! s:Indent(item)
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func! s:Indent(item) abort
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return repeat(' ', shiftwidth()*s:indent). s:Trim(a:item)
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endfu
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" Return item trimmed from leading whitespace {{{1
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func! s:Trim(item)
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func! s:Trim(item) abort
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if exists('*trim')
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return trim(a:item)
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else
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@ -113,44 +125,53 @@ func! s:Trim(item)
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endif
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endfunc
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" Check if tag is a new opening tag <tag> {{{1
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func! s:StartTag(tag)
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func! s:StartTag(tag) abort
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let is_comment = s:IsComment(a:tag)
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return a:tag =~? '^\s*<[^/?]' && !is_comment
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endfunc
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" Check if tag is a Comment start {{{1
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func! s:IsComment(tag)
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func! s:IsComment(tag) abort
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return a:tag =~? '<!--'
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endfunc
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" Remove one level of indentation {{{1
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func! s:DecreaseIndent()
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return (s:indent > 0 ? s:indent - 1 : 0)
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func! s:DecreaseIndent() abort
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let s:indent = (s:indent > 0 ? s:indent - 1 : 0)
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endfunc
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" Check if tag is a closing tag </tag> {{{1
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func! s:EndTag(tag)
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func! s:EndTag(tag) abort
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return a:tag =~? '^\s*</'
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endfunc
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" Check that the tag is actually a tag and not {{{1
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" something like "foobar</foobar>"
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func! s:IsTag(tag)
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func! s:IsTag(tag) abort
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return s:Trim(a:tag)[0] == '<'
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endfunc
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" Check if tag is empty <tag/> {{{1
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func! s:EmptyTag(tag)
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func! s:EmptyTag(tag) abort
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return a:tag =~ '/>\s*$'
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endfunc
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func! s:TagContent(tag) abort "{{{1
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" Return content of a tag
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return substitute(a:tag, '^\s*<[/]\?\([^>]*\)>\s*$', '\1', '')
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endfunc
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func! s:Textwidth() abort "{{{1
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" return textwidth (or 80 if not set)
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return &textwidth == 0 ? 80 : &textwidth
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endfunc
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" Format input line according to textwidth {{{1
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func! s:FormatContent(list)
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func! s:FormatContent(list) abort
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let result=[]
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let limit = 80
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if &textwidth > 0
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let limit = &textwidth
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endif
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let limit = s:Textwidth()
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let column=0
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let idx = -1
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let add_indent = 0
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let cnt = 0
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for item in a:list
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for word in split(item, '\s\+\S\+\zs')
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if match(word, '^\s\+$') > -1
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" skip empty words
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continue
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endif
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let column += strdisplaywidth(word, column)
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if match(word, "^\\s*\n\\+\\s*$") > -1
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call add(result, '')
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