PUSH_FAILURE_ITEM
#define DEBUG_PUSH PUSH_FAILURE_ITEM
PUSH_FAILURE_ITEM (regstart[this_reg]); \
PUSH_FAILURE_ITEM (regend[this_reg]); \
PUSH_FAILURE_ITEM (reg_info[this_reg].word); \
PUSH_FAILURE_ITEM (lowest_active_reg); \
PUSH_FAILURE_ITEM (highest_active_reg); \
PUSH_FAILURE_ITEM (pattern_place); \
PUSH_FAILURE_ITEM (string_place); \