process links of the form [[#anchor]] correctly

when typing :VimwikiAll2HTML

autoload/vimwiki/base.vim

@@ -328,10 +328,6 @@ endfunction " }}}
 function! vimwiki#base#resolve_scheme(lnk, as_html) " {{{ Resolve scheme
   let lnk = a:lnk
 
-  " a link starting with # means current file with an anchor
-  if lnk =~ '^#'
-    let lnk = expand('%:t:r').lnk
-  endif
 
   " if link is schemeless add wikiN: scheme
   let is_schemeless = lnk !~ g:vimwiki_rxSchemeUrl
@@ -458,6 +454,14 @@ function! vimwiki#base#resolve_scheme(lnk, as_html) " {{{ Resolve scheme
     let url = path.subdir.lnk.ext
   endif
 
+  " lnk and url should be '' if the given wiki link has the form [[#anchor]].
+  " We cannot do lnk = expand('%:t:r') or so, because this function is called
+  " from vimwiki#html#WikiAll2HTML() for many files, so expand('%:t:r')
+  " doesn't give the currently processed file
+  if lnk == ''
+    let url = ''
+  endif
+
   " result
   return [idx, scheme, path, subdir, lnk, ext, url, anchor]
 endfunction "}}}
@@ -506,7 +510,7 @@ function! vimwiki#base#open_link(cmd, link, ...) "{{{
   let [idx, scheme, path, subdir, lnk, ext, url, anchor] =
         \ vimwiki#base#resolve_scheme(a:link, 0)
 
-  if url == ''
+  if path == ''
     if g:vimwiki_debug
       echom 'open_link: idx='.idx.', scheme='.scheme.', path='.path.', subdir='.subdir.', lnk='.lnk.', ext='.ext.', url='.url.', anchor='.anchor
     endif
@@ -514,6 +518,11 @@ function! vimwiki#base#open_link(cmd, link, ...) "{{{
     return
   endif
 
+  if url == ''
+    let lnk = expand('%:t:r')
+    let url = path.subdir.lnk.ext
+  endif
+
   let update_prev_link = ( (scheme == '' || scheme =~ 'wiki' || scheme =~ 'diary')
         \ && lnk != expand('%:t:r')
         \ ? 1 : 0)

autoload/vimwiki/html.vim

@@ -390,7 +390,6 @@ function! s:tag_wikiincl(value) "{{{
 
     let url = escape(url, '#')
     let line = vimwiki#html#linkify_image(url, descr, verbatim_str)
-    return line
   endif
   return line
 endfunction "}}}
@@ -402,7 +401,7 @@ function! s:tag_wikilink(value) "{{{
   " [[fileurl.ext|descr]]     -> <a href="fileurl.ext">descr</a>
   " [[dirurl/|descr]]         -> <a href="dirurl/index.html">descr</a>
   " [[url#a1#a2]]             -> <a href="url.html#a1-a2">url#a1#a2</a>
-  " [[#a1#a2]]                -> <a href="file.html#a1-a2">#a1#a2</a>
+  " [[#a1#a2]]                -> <a href="#a1-a2">#a1#a2</a>
   let str = a:value
   let url = matchstr(str, g:vimwiki_rxWikiLinkMatchUrl)
   let descr = matchstr(str, g:vimwiki_rxWikiLinkMatchDescr)

doc/vimwiki.txt

@@ -2242,7 +2242,7 @@ similar to 'local:' and 'file:' schemes, but are always opened with Vim: >
            \ ', subdir='.subdir.', lnk='.lnk.', ext='.ext.', url='.url.
            \ ', anchor='.anchor
     endif
-    if url == ''
+    if path == ''
       echom 'Vimwiki Error: Unable to resolve link!'
       return 0
     else

ftplugin/vimwiki.vim

@@ -100,7 +100,8 @@ function! Complete_wikifiles(findstart, base)
       " we look for anchors in the given wikifile
 
       let segments = split(a:base, '#', 1)
-      let link_infos = vimwiki#base#resolve_scheme(segments[0].'#', 0)
+      let given_wikifile = segments[0]=='' ? expand('%:t:r') : segments[0]
+      let link_infos = vimwiki#base#resolve_scheme(given_wikifile.'#', 0)
       let wikifile = link_infos[6]
       let syntax = VimwikiGet('syntax', link_infos[0])
       let anchors = vimwiki#base#get_anchors(wikifile, syntax)