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error.c
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C/C++ Source or Header
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1980-02-17
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2KB
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127 lines
/* Copyright (c) 1979 Regents of the University of California */
#
/*
* pi - Pascal interpreter code translator
*
* Charles Haley, Bill Joy UCB
* Version 1.2 January 1979
*
*
* pxp - Pascal execution profiler
*
* Bill Joy UCB
* Version 1.2 January 1979
*/
#include "0.h"
#include "yy.h"
#ifdef PXP
extern int yyline;
extern char errout;
#endif
char errpfx 'E';
extern int yyline;
/*
* Panic is called when impossible
* (supposedly, anyways) situations
* are encountered.
#ifdef PI
* Panic messages should be short
* as they do not go to the message
* file.
#endif
*/
panic(s)
char *s;
{
#ifdef DEBUG
printf("Snark (%s) line=%d yyline=%d\n", s, line, yyline);
#endif
#ifdef PXP
Perror( "Snark in pxp", s);
#endif
#ifdef PI
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.
*/
error(a1, a2, a3, a4)
{
#ifdef PI
char buf[256];
register int i;
#endif
#ifdef PXP
int ofout;
#endif
if (errpfx == 'w' && opt('w') != 0)
return;
#ifdef PXP
flush();
ofout = fout[0];
fout[0] = errout;
#endif
#ifdef PI
Enocascade = 0;
geterr(a1, buf);
a1 = buf;
#endif
if (line < 0)
line = -line;
yySsync();
yysetfile(filename);
#ifdef PI
if (errpfx == ' ') {
printf(" ");
for (i = line; i >= 10; i =/ 10)
putchar(' ');
printf("... ");
} else if (Enoline)
printf(" %c - ", errpfx);
else
#endif
printf("%c %d - ", errpfx, line);
printf(a1, a2, a3, a4);
if (errpfx == 'E')
#ifdef PI
eflg++, cgenflg++;
#endif
#ifdef PXP
eflg++;
#endif
errpfx = 'E';
#ifdef PI
if (Eholdnl)
Eholdnl = 0;
else
#endif
putchar('\n');
#ifdef PXP
flush();
fout[0] = ofout;
#endif
}
#ifdef PI
cerror(a1, a2, a3, a4)
{
if (Enocascade)
return;
setpfx(' ');
error(a1, a2, a3, a4);
}
#endif