1iff AST_API 2 3ver ast 20111111 4 5api ast 20120528 regexec regnexec regrexec regsubexec strgrpmatch 6 7api ast 20120411 cmdopen 8 9api ast 20110505 cmdopen 10 11api ast 20100601 pathaccess pathcanon pathcat pathkey pathpath pathprobe pathrepl 12 13api ast 20000308 sfkeyprintf 14 15print #define _AST_VERSION AST_VERSION /* pre-20100601 compatibility */ 16