1 files changed, 60 insertions, 0 deletions
diff --git a/autoload/l9/tempvariables.vim b/autoload/l9/tempvariables.vim
new file mode 100644
index 0000000..ee847ee
--- /dev/null
+++ b/autoload/l9/tempvariables.vim
@@ -0,0 +1,60 @@
+"=============================================================================
+" Copyright (C) 2010 Takeshi NISHIDA
+"
+"=============================================================================
+" LOAD GUARD {{{1
+
+if !l9#guardScriptLoading(expand('<sfile>:p'), 0, 0, [])
+  finish
+endif
+
+" }}}1
+"=============================================================================
+" TEMPORARY VARIABLES {{{1
+
+"
+let s:origMap = {}
+
+" set temporary variables
+function l9#tempvariables#set(group, name, value)
+  if !exists('s:origMap[a:group]')
+    let s:origMap[a:group] = {}
+  endif
+  if !exists('s:origMap[a:group][a:name]')
+    let s:origMap[a:group][a:name] = eval(a:name)
+  endif
+  execute 'let ' . a:name . ' = a:value'
+endfunction
+
+" set temporary variables
+function l9#tempvariables#setList(group, variables)
+  for [name, value] in a:variables
+    call l9#tempvariables#set(a:group, name, value)
+    unlet value " to avoid E706
+  endfor
+endfunction
+
+" get temporary variables
+function l9#tempvariables#getList(group)
+  if !exists('s:origMap[a:group]')
+    return []
+  endif
+  return map(keys(s:origMap[a:group]), '[v:val, eval(v:val)]')
+endfunction
+
+" restore original variables and clean up.
+function l9#tempvariables#end(group)
+  if !exists('s:origMap[a:group]')
+    return
+  endif
+  for [name, value] in items(s:origMap[a:group])
+    execute 'let ' . name . ' = value'
+    unlet value " to avoid E706
+  endfor
+  unlet s:origMap[a:group]
+endfunction
+
+" }}}1
+"=============================================================================
+" vim: set fdm=marker:
+