The first script: align

align/plugin/align.vim

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+function! s:Align(sequence) range
+  " First, find the rightmost occurence of sequence in all lines
+  let l:index = 0
+  for i in range(a:firstline, a:lastline)
+    let l:line = getline(i)
+    let l:seqpos = stridx(l:line, a:sequence)
+    if l:seqpos > l:index
+      let l:index = l:seqpos
+    endif
+  endfor
+  echo "Rightmost position: " . l:index
+
+  " Now, for each line, find the first occurrence of sequence, and insert
+  " spaces until sequence was shifted to l:index
+  for i in range(a:firstline, a:lastline)
+    let l:line = getline(i)
+    let l:seqpos = stridx(l:line, a:sequence)
+
+    if l:seqpos == -1
+      continue
+    endif
+
+    " Build string of spaces
+    let l:spaces = ""
+    for j in range(l:seqpos, l:index-1)
+      let l:spaces = l:spaces . ' '
+    endfor
+
+    " Insert spaces right before the sequence
+    if l:seqpos > 0
+      let l:line = l:line[: l:seqpos-1] . l:spaces . l:line[l:seqpos :]
+    else
+      let l:line = l:spaces . l:line
+    endif
+
+    call setline(i, l:line)
+  endfor
+endfunction
+
+command! -nargs=1 -range Align <line1>,<line2>call s:Align(<args>)