/*- * Copyright (c) 1980, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static char sccsid[] = "@(#)yyprint.c 8.1 (Berkeley) 6/6/93"; #endif /* not lint */ #include "whoami.h" #include "0.h" #include "tree_ty.h" /* must be included for yy.h */ #include "yy.h" char *tokname(); STATIC short bounce; /* * Printing representation of a * "character" - a lexical token * not in a yytok structure. * 'which' indicates which char * you want * should always be called as "charname(...,0),charname(...,1)" */ char * charname(ch , which ) int ch; int which; { struct yytok Ych; Ych.Yychar = ch; Ych.Yylval = nullsem(ch); return (tokname(&Ych , which )); } /* * Printing representation of a token * 'which' as above. */ char * tokname(tp , which ) register struct yytok *tp; int which; { register char *cp; register struct kwtab *kp; char *cp2; cp2 = ""; switch (tp->Yychar) { case YCASELAB: cp = "case-label"; break; case YEOF: cp = "end-of-file"; break; case YILLCH: cp = "illegal character"; break; case 256: /* error token */ cp = "error"; break; case YID: cp = "identifier"; break; case YNUMB: cp = "real number"; break; case YINT: case YBINT: cp = "number"; break; case YSTRING: cp = (char *) tp->Yylval; cp = cp == NIL || cp[1] == 0 ? "character" : "string"; break; case YDOTDOT: cp = "'..'"; break; default: if (tp->Yychar < 256) { cp = "'x'\0'x'\0'x'\0'x'"; /* * for four times reentrant code! * used to be: * if (bounce = ((bounce + 1) & 1)) * cp += 4; */ bounce = ( bounce + 1 ) % 4; cp += (4 * bounce); /* 'x'\0 is 4 chars */ cp[1] = tp->Yychar; break; } for (kp = yykey; kp->kw_str != NIL && kp->kw_val != tp->Yychar; kp++) continue; cp = "keyword "; cp2 = kp->kw_str; } return ( which ? cp2 : cp ); }