+" --- tag manipulation helpers {{{1
+
+" used to combine an array of words with prefixes and separators
+" example:
+" NM_combine_tags('tag:', ['one', 'two', 'three'], 'OR', '()')
+" -> ['(', 'tag:one', 'OR', 'tag:two', 'OR', 'tag:three', ')']
+function s:NM_combine_tags(word_prefix, words, separator, brackets)
+ let res = []
+ for word in a:words
+ if len(res) && strlen(a:separator)
+ call add(res, a:separator)
+ endif
+ call add(res, a:word_prefix . word)
+ endfor
+ if len(res) > 1 && strlen(a:brackets)
+ if strlen(a:brackets) != 2
+ throw 'Eeek! brackets arg to NM_combine_tags must be 2 chars'
+ endif
+ call insert(res, a:brackets[0])
+ call add(res, a:brackets[1])
+ endif
+ return res
+endfunction
+