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foreach2.m4
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include(`quote.m4')dnl divert(`-1') # foreach(x, (item_1, item_2, ..., item_n), stmt) # parenthesized list, improved version define(`foreach', `pushdef(`$1')_$0(`$1', (dquote(dquote_elt$2)), `$3')popdef(`$1')') define(`_arg1', `$1') define(`_foreach', `ifelse(`$2', `(`')', `', `define(`$1', _arg1$2)$3`'$0(`$1', (dquote(shift$2)), `$3')')') divert`'dnl