@@ -216,6 +216,15 @@ endfunction "}}}
216216
217217function ! s: Is_opening_folding" {{{
218218" Helper function to see if docstring is opening or closing
219+
220+ " Cache the result so the loop runs only once per change
221+ if get (b: ' fold_changenr' -1 )== changenr ()
222+ return b: fold_cachea: lnum" If odd then it is an opening
223+ else
224+ let b: fold_changenr= changenr ()
225+ let b: fold_cache= []
226+ endif
227+
219228let number_of_folding= 0 " To be analized if odd/even to inform if it is opening or closing.
220229let has_open_docstring= 0 " To inform is already has an open docstring.
221230let extra_docstrings= 0 " To help skipping ''' and" " "
@@ -224,7 +233,9 @@ function! s:Is_opening_folding(lnum) "{{{
224233" not just triple quotes (that could be a regular string).
225234"
226235" Iterater over all lines from the start until current line (inclusive)
227- for i in range (1 ,a: lnum
236+ for i in range (1 ,line (' $'
237+ call add (b: fold_cache% 2 )
238+
228239let i_line= getline (i )
229240
230241if i_line= ~s: doc_line_regex
@@ -255,11 +266,9 @@ function! s:Is_opening_folding(lnum) "{{{
255266endif
256267endfor
257268
258- if fmod (number_of_folding,2 )== 1 " If odd then it is an opening
259- return 1
260- else
261- return 0
262- endif
269+ call add (b: fold_cache% 2 )
270+
271+ return b: fold_cachea: lnum
263272endfunction " }}}
264273
265274" vim:fdm = marker:fdl = 0