initial commit - custom tabline

vimrc.d/tabline.vim

@@ -0,0 +1,69 @@
+if exists("+showtabline")
+
+" Rename tabs to show tab number.
+" based on:
+" http://stackoverflow.com/questions/5927952/whats-implementation-of-vims-default-tabline-function
+
+function! MyTabLine()
+    let s = ''
+    let t = tabpagenr()
+    let i = 1
+    while i <= tabpagenr('$')
+        let buflist = tabpagebuflist(i)
+        let winnr = tabpagewinnr(i)
+        let s .= '%' . i . 'T'
+        let s .= (i == t ? '%1*' : '%2*')
+
+        let s .= (i == t ? '%#TabNumSel#' : '%#TabNum#')
+        let s .= i
+        let s .= '%#TabSeparator#:'
+        let s .= (i == t ? '%#TabLineItemSel#' : '%#TabLineItem#')
+
+        let bufnr = buflist[winnr - 1]
+        let file = bufname(bufnr)
+        let buftype = getbufvar(bufnr, '&buftype')
+
+        if buftype == 'help'
+            let file = 'help:' . fnamemodify(file, ':t:r')
+
+        elseif buftype == 'quickfix'
+            let file = 'quickfix'
+
+        elseif buftype == 'nofile'
+            if file =~ '\/.'
+                let file = substitute(file, '.*\/\ze.', '', '')
+            endif
+
+        else
+            let file = pathshorten(fnamemodify(file, ':p:~:.'))
+
+        endif
+
+        if file == ''
+            let file = '[]'
+        endif
+
+        let s .= file . ' '
+
+        let i = i + 1
+
+    endwhile
+
+    let s .= '%T%#TabLineFill#%='
+    let s .= '%#TabSeparator#"%#TabLineItemSel#%{v:register}%#TabSeparator#" '
+    let s .= " %#TabLineItemSel#%{ObsessionStatus(fnamemodify(v:this_session,':t'),'---')} %*"
+
+    return s
+
+endfunction
+
+highlight def link TabNum Comment
+highlight def link TabNumSel String
+highlight def link TabSeparator Comment
+highlight def link TabLineItem Comment
+highlight def link TabLineItemSel String
+
+set showtabline=2
+set tabline=%!MyTabLine()
+
+endif " exists("+showtabline")