BSD 4 release

[unix-history] / usr / src / cmd / pi / error.c

/* Copyright (c) 1979 Regents of the University of California */

static  char sccsid[] = "@(#)error.c 1.1 8/27/80";

#include "whoami.h"
#include "0.h"
#ifndef PI1
#include "yy.h"
#endif

char    errpfx  = 'E';
extern  int yyline;
/*
* Panic is called when impossible
* (supposedly, anyways) situations
* are encountered.
* Panic messages should be short
* as they do not go to the message
* file.
*/
panic(s)
       char *s;
{

#ifdef DEBUG
#ifdef PI1
       printf("Snark (%s) line=%d\n", s, line);
       abort();
#else
       printf("Snark (%s) line=%d, yyline=%d\n", s, line, yyline);
       abort () ;      /* die horribly */
#endif
#endif
#ifdef PI1
       Perror( "Snark in pi1", s);
#else
       Perror( "Snark in pi", s);
#endif
       pexit(DIED);
}

extern  char *errfile;
/*
* Error is called for
* semantic errors and
* prints the error and
* a line number.
*/

/*VARARGS*/

error(a1, a2, a3, a4)
       register char *a1;
{
       char errbuf[256];               /* was extern. why? ...pbk */
       register int i;

       if (errpfx == 'w' && opt('w') != 0) {
               errpfx = 'E';
               return;
       }
       Enocascade = 0;
       geterr(a1, errbuf);
       a1 = errbuf;
       if (line < 0)
               line = -line;
#ifndef PI1
       if (opt('l'))
               yyoutline();
#endif
       yysetfile(filename);
       if (errpfx == ' ') {
               printf("  ");
               for (i = line; i >= 10; i /= 10)
                       pchr( ' ' );
               printf("... ");
       } else if (Enoline)
               printf("  %c - ", errpfx);
       else
               printf("%c %d - ", errpfx, line);
       printf(a1, a2, a3, a4);
       if (errpfx == 'E')
#ifndef PI0
               eflg++, codeoff();
#else
               eflg++;
#endif
       errpfx = 'E';
       if (Eholdnl)
               Eholdnl = 0;
       else
               pchr( '\n' );
}

/*VARAGRS*/

cerror(a1, a2, a3, a4)
{

       if (Enocascade)
               return;
       setpfx(' ');
       error(a1, a2, a3, a4);
}

#ifdef PI1

/*VARARGS*/

derror(a1, a2, a3, a4)
{

       if (!holdderr)
               error(a1, a2, a3, a4);
       errpfx = 'E';
}

char    *lastname, printed, hadsome;

   /*
    *  this yysetfile for PI1 only.
    *  the real yysetfile is in yyput.c
    */
yysetfile(name)
       char *name;
{

       if (lastname == name)
               return;
       printed =| 1;
       gettime( name );
       printf("%s  %s:\n" , myctime( &tvec ) , name );
       lastname = name;
}
#endif