| OCR Text |
Show (K always pdlnts 52 I J K parse stack |a ident , abp i . ident after a |a 'aal' "4," •Maa1 match; 1• • 0 0 1 0 to the top of the etack). After the return from the seaantic routine, th© first section is examined to see whether or not a reehjotioa ia r«»quested..' "aexp-»-"-; i£ present so tlte region of the stack between 1 «4 J^willbe replaced with "aexp" in location-1. ' ■ *: ■. ■' . • . I' J K parse-stijclf i^.?\aeyp: "j v„, afteK...fc|ie « reductioni ';a \1 o Now the.<scan>■field is examined. A single scan is requested and executed. ; textj; tsL i a M^aTXTT IS T | "7 a i ■■ .t-,.!.,-.-■■*,ii f «f«.,. X i 5 i parse stack ) aeXp j mop j after scan: I 'aal I • j II i; »I i-^l™.! •..- I«astly# the go is executed and control' is passed to another pattern -in this case, the pattern labeled "axp" ^«^«««««u^aoumw^ÄwwaBÄs^an^,^^^^^^^;^,^,^,,^ |
