examples/foreachq2.m4

   1 include(`quote.m4')dnl
   2 divert(`-1')
   3 # foreachq(x, `item_1, item_2, ..., item_n', stmt)
   4 #   quoted list, improved version
   5 define(`foreachq', `pushdef(`$1')_foreachq($@)popdef(`$1')')
   6 define(`_arg1q', ``$1'')
   7 define(`_rest', `ifelse(`$#', `1', `', `dquote(shift($@))')')
   8 define(`_foreachq', `ifelse(`$2', `', `',
   9   `define(`$1', _arg1q($2))$3`'$0(`$1', _rest($2), `$3')')')
  10 divert`'dnl