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Annotation of 42BSD/ucb/pascal/pxp/error.c, revision 1.1

1.1     ! root        1: static char *sccsid = "@(#)error.c     1.4 (Berkeley) 5/11/83";
        !             2: /* Copyright (c) 1979 Regents of the University of California */
        !             3: /*
        !             4:  * pi - Pascal interpreter code translator
        !             5:  *
        !             6:  * Charles Haley, Bill Joy UCB
        !             7:  * Version 1.2 January 1979
        !             8:  *
        !             9:  *
        !            10:  * pxp - Pascal execution profiler
        !            11:  *
        !            12:  * Bill Joy UCB
        !            13:  * Version 1.2 January 1979
        !            14:  */
        !            15: 
        !            16: #include "whoami.h"
        !            17: #include "0.h"
        !            18: #include "yy.h"
        !            19: 
        !            20: #ifdef PXP
        !            21: extern int yyline;
        !            22: extern char errout;
        !            23: #endif
        !            24: 
        !            25: char   errpfx  = 'E';
        !            26: extern int yyline;
        !            27: /*
        !            28:  * Panic is called when impossible
        !            29:  * (supposedly, anyways) situations
        !            30:  * are encountered.
        !            31: #ifdef PI
        !            32:  * Panic messages should be short
        !            33:  * as they do not go to the message
        !            34:  * file.
        !            35: #endif
        !            36:  */
        !            37: panic(s)
        !            38:        char *s;
        !            39: {
        !            40: 
        !            41: #ifdef DEBUG
        !            42:        fprintf(stderr, "Snark (%s) line=%d yyline=%d\n", s, line, yyline);
        !            43: #endif
        !            44: #ifdef PXP
        !            45:        Perror( "Snark in pxp", s);
        !            46: #endif
        !            47: #ifdef PI
        !            48:        Perror( "Snark in pi", s);
        !            49: #endif
        !            50:        pexit(DIED);
        !            51: }
        !            52: 
        !            53: extern char *errfile;
        !            54: /*
        !            55:  * Error is called for
        !            56:  * semantic errors and
        !            57:  * prints the error and
        !            58:  * a line number.
        !            59:  */
        !            60: error(a1, a2, a3, a4)
        !            61: {
        !            62: #ifdef PI
        !            63:        char buf[256];
        !            64:        register int i;
        !            65: #endif
        !            66: #ifdef PXP
        !            67: /*
        !            68:        int ofout;
        !            69: */
        !            70: #endif
        !            71: 
        !            72:        if (errpfx == 'w' && opt('w') != 0) {
        !            73:                errpfx == 'E';
        !            74:                return;
        !            75:        }
        !            76: #ifdef PXP
        !            77: /*
        !            78:        flush();
        !            79:        ofout = fout[0];
        !            80:        fout[0] = errout;
        !            81: */
        !            82: #endif
        !            83: #ifdef PI
        !            84:        Enocascade = 0;
        !            85:        geterr(a1, buf);
        !            86:        a1 = buf;
        !            87: #endif
        !            88:        if (line < 0)
        !            89:                line = -line;
        !            90:        yySsync();
        !            91:        yysetfile(filename);
        !            92: #ifdef PI
        !            93:        if (errpfx == ' ') {
        !            94:                printf("  ");
        !            95:                for (i = line; i >= 10; i =/ 10)
        !            96:                        putchar(' ');
        !            97:                printf("... ");
        !            98:        } else if (Enoline)
        !            99:                printf("  %c - ", errpfx);
        !           100:        else
        !           101: #endif
        !           102:                fprintf(stderr, "%c %d - ", errpfx, line);
        !           103:        fprintf(stderr, a1, a2, a3, a4);
        !           104:        if (errpfx == 'E')
        !           105: #ifdef PI
        !           106:                eflg++, cgenflg++;
        !           107: #endif
        !           108: #ifdef PXP
        !           109:                eflg++;
        !           110: #endif
        !           111:        errpfx = 'E';
        !           112: #ifdef PI
        !           113:        if (Eholdnl)
        !           114:                Eholdnl = 0;
        !           115:        else
        !           116: #endif
        !           117:                putc('\n', stderr);
        !           118: #ifdef PXP
        !           119: /*
        !           120:        flush();
        !           121:        fout[0] = ofout;
        !           122: */
        !           123: #endif
        !           124: }
        !           125: 
        !           126: #ifdef PI
        !           127: cerror(a1, a2, a3, a4)
        !           128: {
        !           129: 
        !           130:        if (Enocascade)
        !           131:                return;
        !           132:        setpfx(' ');
        !           133:        error(a1, a2, a3, a4);
        !           134: }
        !           135: #endif

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