1 /* Copyright (c) 1979 Regents of the University of California */ 2 3 static char sccsid[] = "@(#)yyseman.c 1.1 08/27/80"; 4 5 #include "whoami.h" 6 #include "0.h" 7 #include "yy.h" 8 9 /* 10 * Assign semantics to a generated token 11 * 12 * Most terminals have a semantic value the current 13 * input line. If they are generated they are flagged 14 * by having this number negated. 15 * 16 * The terminals which have true semantics such 17 * as identifiers and strings are instead given 18 * semantic value NIL here - we do not attempt 19 * to do repair, e.g. by giving generated integers 20 * the value 1, etc. 21 */ 22 nullsem(ch) 23 int ch; 24 { 25 26 switch (ch) { 27 case YID: 28 case YINT: 29 case YNUMB: 30 case YBINT: 31 case YSTRING: 32 return (NIL); 33 default: 34 return (-yyeline); 35 } 36 } 37