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Annotation of 43BSD/ucb/pascal/src/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    5.1 (Berkeley) 6/5/85";
        !             9: #endif not lint
        !            10: 
        !            11: #include "whoami.h"
        !            12: #include "0.h"
        !            13: #ifndef PI1
        !            14: #include "tree_ty.h"           /* must be included for yy.h */
        !            15: #include "yy.h"
        !            16: #endif
        !            17: 
        !            18: char   errpfx  = 'E';
        !            19: extern int yyline;
        !            20: /*
        !            21:  * Panic is called when impossible
        !            22:  * (supposedly, anyways) situations
        !            23:  * are encountered.
        !            24:  * Panic messages should be short
        !            25:  * as they do not go to the message
        !            26:  * file.
        !            27:  */
        !            28: panic(s)
        !            29:        char *s;
        !            30: {
        !            31: 
        !            32: #ifdef DEBUG
        !            33: #ifdef PI1
        !            34:        printf("Snark (%s) line=%d\n", s, line);
        !            35:        abort();
        !            36: #else
        !            37:        printf("Snark (%s) line=%d, yyline=%d\n", s, line, yyline);
        !            38:        abort () ;      /* die horribly */
        !            39: #endif
        !            40: #endif
        !            41: #ifdef PI1
        !            42:        Perror( "Snark in pi1", s);
        !            43: #else
        !            44:        Perror( "Snark in pi", s);
        !            45: #endif
        !            46:        pexit(DIED);
        !            47: }
        !            48: 
        !            49: /*
        !            50:  * Error is called for
        !            51:  * semantic errors and
        !            52:  * prints the error and
        !            53:  * a line number.
        !            54:  */
        !            55: 
        !            56: /*VARARGS1*/
        !            57: 
        !            58: error(a1, a2, a3, a4, a5)
        !            59:        register char *a1;
        !            60: {
        !            61:        char errbuf[256];               /* was extern. why? ...pbk */
        !            62:        register int i;
        !            63: 
        !            64:        if (errpfx == 'w' && opt('w') != 0) {
        !            65:                errpfx = 'E';
        !            66:                return;
        !            67:        }
        !            68:        Enocascade = FALSE;
        !            69:        geterr((int) a1, errbuf);
        !            70:        a1 = errbuf;
        !            71:        if (line < 0)
        !            72:                line = -line;
        !            73: #ifndef PI1
        !            74:        if (opt('l'))
        !            75:                yyoutline();
        !            76: #endif
        !            77:        yysetfile(filename);
        !            78:        if (errpfx == ' ') {
        !            79:                printf("  ");
        !            80:                for (i = line; i >= 10; i /= 10)
        !            81:                        pchr( ' ' );
        !            82:                printf("... ");
        !            83:        } else if (Enoline)
        !            84:                printf("  %c - ", errpfx);
        !            85:        else
        !            86:                printf("%c %d - ", errpfx, line);
        !            87:        printf(a1, a2, a3, a4, a5);
        !            88:        if (errpfx == 'E')
        !            89: #ifndef PI0
        !            90:                eflg = TRUE, codeoff();
        !            91: #else
        !            92:                eflg = TRUE;
        !            93: #endif
        !            94:        errpfx = 'E';
        !            95:        if (Eholdnl)
        !            96:                Eholdnl = FALSE;
        !            97:        else
        !            98:                pchr( '\n' );
        !            99: }
        !           100: 
        !           101: /*VARARGS1*/
        !           102: 
        !           103: cerror(a1, a2, a3, a4, a5)
        !           104:     char *a1;
        !           105: {
        !           106: 
        !           107:        if (Enocascade)
        !           108:                return;
        !           109:        setpfx(' ');
        !           110:        error(a1, a2, a3, a4, a5);
        !           111: }
        !           112: 
        !           113: #ifdef PI1
        !           114: 
        !           115: /*VARARGS*/
        !           116: 
        !           117: derror(a1, a2, a3, a4, a5)
        !           118:     char *a1, *a2, *a3, *a4, *a5;
        !           119: {
        !           120: 
        !           121:        if (!holdderr)
        !           122:                error(a1, a2, a3, a4, a5);
        !           123:        errpfx = 'E';
        !           124: }
        !           125: 
        !           126: char   *lastname, printed, hadsome;
        !           127: 
        !           128:     /*
        !           129:      * this yysetfile for PI1 only.
        !           130:      * the real yysetfile is in yyput.c
        !           131:      */
        !           132: yysetfile(name)
        !           133:        char *name;
        !           134: {
        !           135: 
        !           136:        if (lastname == name)
        !           137:                return;
        !           138:        printed =| 1;
        !           139:        gettime( name );
        !           140:        printf("%s  %s:\n" , myctime( &tvec ) , name );
        !           141:        lastname = name;
        !           142: }
        !           143: #endif

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