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Annotation of 43BSDReno/pgrm/pascal/pxp/error.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1980 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  */
        !             6: 
        !             7: #ifndef lint
        !             8: static char sccsid[] = "@(#)error.c    5.2 (Berkeley) 12/4/87";
        !             9: #endif not lint
        !            10: 
        !            11: /*
        !            12:  * pi - Pascal interpreter code translator
        !            13:  *
        !            14:  * Charles Haley, Bill Joy UCB
        !            15:  * Version 1.2 January 1979
        !            16:  *
        !            17:  *
        !            18:  * pxp - Pascal execution profiler
        !            19:  *
        !            20:  * Bill Joy UCB
        !            21:  * Version 1.2 January 1979
        !            22:  */
        !            23: 
        !            24: #include "whoami.h"
        !            25: #include "0.h"
        !            26: #include "yy.h"
        !            27: 
        !            28: #ifdef PXP
        !            29: extern int yyline;
        !            30: extern char errout;
        !            31: #endif
        !            32: 
        !            33: char   errpfx  = 'E';
        !            34: extern int yyline;
        !            35: /*
        !            36:  * Panic is called when impossible
        !            37:  * (supposedly, anyways) situations
        !            38:  * are encountered.
        !            39: #ifdef PI
        !            40:  * Panic messages should be short
        !            41:  * as they do not go to the message
        !            42:  * file.
        !            43: #endif
        !            44:  */
        !            45: panic(s)
        !            46:        char *s;
        !            47: {
        !            48: 
        !            49: #ifdef DEBUG
        !            50:        fprintf(stderr, "Snark (%s) line=%d yyline=%d\n", s, line, yyline);
        !            51: #endif
        !            52: #ifdef PXP
        !            53:        Perror( "Snark in pxp", s);
        !            54: #endif
        !            55: #ifdef PI
        !            56:        Perror( "Snark in pi", s);
        !            57: #endif
        !            58:        pexit(DIED);
        !            59: }
        !            60: 
        !            61: extern char *errfile;
        !            62: /*
        !            63:  * Error is called for
        !            64:  * semantic errors and
        !            65:  * prints the error and
        !            66:  * a line number.
        !            67:  */
        !            68: error(a1, a2, a3, a4)
        !            69: {
        !            70: #ifdef PI
        !            71:        char buf[256];
        !            72:        register int i;
        !            73: #endif
        !            74: #ifdef PXP
        !            75: /*
        !            76:        int ofout;
        !            77: */
        !            78: #endif
        !            79: 
        !            80:        if (errpfx == 'w' && opt('w') != 0) {
        !            81:                errpfx == 'E';
        !            82:                return;
        !            83:        }
        !            84: #ifdef PXP
        !            85: /*
        !            86:        flush();
        !            87:        ofout = fout[0];
        !            88:        fout[0] = errout;
        !            89: */
        !            90: #endif
        !            91: #ifdef PI
        !            92:        Enocascade = 0;
        !            93:        geterr(a1, buf);
        !            94:        a1 = buf;
        !            95: #endif
        !            96:        if (line < 0)
        !            97:                line = -line;
        !            98:        yySsync();
        !            99:        yysetfile(filename);
        !           100: #ifdef PI
        !           101:        if (errpfx == ' ') {
        !           102:                printf("  ");
        !           103:                for (i = line; i >= 10; i /= 10)
        !           104:                        putchar(' ');
        !           105:                printf("... ");
        !           106:        } else if (Enoline)
        !           107:                printf("  %c - ", errpfx);
        !           108:        else
        !           109: #endif
        !           110:                fprintf(stderr, "%c %d - ", errpfx, line);
        !           111:        fprintf(stderr, a1, a2, a3, a4);
        !           112:        if (errpfx == 'E')
        !           113: #ifdef PI
        !           114:                eflg++, cgenflg++;
        !           115: #endif
        !           116: #ifdef PXP
        !           117:                eflg++;
        !           118: #endif
        !           119:        errpfx = 'E';
        !           120: #ifdef PI
        !           121:        if (Eholdnl)
        !           122:                Eholdnl = 0;
        !           123:        else
        !           124: #endif
        !           125:                putc('\n', stderr);
        !           126: #ifdef PXP
        !           127: /*
        !           128:        flush();
        !           129:        fout[0] = ofout;
        !           130: */
        !           131: #endif
        !           132: }
        !           133: 
        !           134: #ifdef PI
        !           135: cerror(a1, a2, a3, a4)
        !           136: {
        !           137: 
        !           138:        if (Enocascade)
        !           139:                return;
        !           140:        setpfx(' ');
        !           141:        error(a1, a2, a3, a4);
        !           142: }
        !           143: #endif

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