1 files changed, 75 insertions, 0 deletions
diff --git a/indent/jst.vim b/indent/jst.vim
new file mode 100644
index 00000000..c9162741
--- /dev/null
+++ b/indent/jst.vim
@@ -0,0 +1,75 @@
+if exists("b:did_indent")
+  finish
+endif
+
+runtime! indent/javascript.vim
+unlet! b:did_indent
+setlocal indentexpr=
+
+if exists("b:jst_subtype")
+  exe "runtime! indent/".b:jst_subtype.".vim"
+else
+  runtime! indent/html.vim
+endif
+unlet! b:did_indent
+
+if &l:indentexpr == ''
+  if &l:cindent
+    let &l:indentexpr = 'cindent(v:lnum)'
+  else
+    let &l:indentexpr = 'indent(prevnonblank(v:lnum-1))'
+  endif
+endif
+let b:jst_subtype_indentexpr = &l:indentexpr
+
+let b:did_indent = 1
+
+setlocal indentexpr=GetJstIndent()
+setlocal indentkeys=o,O,*<Return>,<>>,{,},0),0],o,O,!^F,=end,=else,=elsif,=rescue,=ensure,=when
+
+" Only define the function once.
+if exists("*GetJstIndent")
+  finish
+endif
+
+function! GetJstIndent(...)
+  if a:0 && a:1 == '.'
+    let v:lnum = line('.')
+  elseif a:0 && a:1 =~ '^\d'
+    let v:lnum = a:1
+  endif
+  let vcol = col('.')
+  call cursor(v:lnum,1)
+  let injavascript = searchpair('<%','','%>','W')
+  call cursor(v:lnum,vcol)
+  if injavascript && getline(v:lnum) !~ '^<%\|^\s*[-=]\=%>'
+    let ind = GetJavascriptIndent()
+  else
+    exe "let ind = ".b:jst_subtype_indentexpr
+  endif
+  let lnum = prevnonblank(v:lnum-1)
+  let line = getline(lnum)
+  let cline = getline(v:lnum)
+  if cline =~# '^\s*<%[-=]\=\s*\%(}.\{-\}\)\s*\%([-=]\=%>\|$\)'
+    let ind = ind - &sw
+  endif
+  if line =~# '\S\s*<%[-=]\=\s*\%(}\).\{-\}\s*\%([-=]\=%>\|$\)'
+    let ind = ind - &sw
+  endif
+  if line =~# '\%({\|\<do\)\%(\s*|[^|]*|\)\=\s*[-=]\=%>'
+    let ind = ind + &sw
+  endif
+  if line =~# '^\s*<%[=#-]\=\s*$' && cline !~# '^\s*end\>'
+    let ind = ind + &sw
+  endif
+  if line !~# '^\s*<%' && line =~# '%>\s*$'
+    let ind = ind - &sw
+  endif
+  if cline =~# '^\s*[-=]\=%>\s*$'
+    let ind = ind - &sw
+  endif
+  return ind
+endfunction
+
+" vim:set sw=2 sts=2 ts=8 noet:
+