projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| eb8dd88e BJ |
1 | /* Copyright (c) 1979 Regents of the University of California */ |
| 2 | /* | |
| 3 | * pi - Pascal interpreter code translator | |
| 4 | * | |
| 5 | * Charles Haley, Bill Joy UCB | |
| 6 | * Version 1.2 January 1979 | |
| 7 | * | |
| 8 | * | |
| 9 | * pxp - Pascal execution profiler | |
| 10 | * | |
| 11 | * Bill Joy UCB | |
| 12 | * Version 1.2 January 1979 | |
| 13 | */ | |
| 14 | ||
| 15 | #include "0.h" | |
| 16 | #include "yy.h" | |
| 17 | ||
| 18 | #ifdef PXP | |
| 19 | extern int yyline; | |
| 20 | extern char errout; | |
| 21 | #endif | |
| 22 | ||
| 23 | char errpfx 'E'; | |
| 24 | extern int yyline; | |
| 25 | /* | |
| 26 | * Panic is called when impossible | |
| 27 | * (supposedly, anyways) situations | |
| 28 | * are encountered. | |
| 29 | #ifdef PI | |
| 30 | * Panic messages should be short | |
| 31 | * as they do not go to the message | |
| 32 | * file. | |
| 33 | #endif | |
| 34 | */ | |
| 35 | panic(s) | |
| 36 | char *s; | |
| 37 | { | |
| 38 | ||
| 39 | #ifdef DEBUG | |
| 40 | fprintf(stderr, "Snark (%s) line=%d yyline=%d\n", s, line, yyline); | |
| 41 | #endif | |
| 42 | #ifdef PXP | |
| 43 | Perror( "Snark in pxp", s); | |
| 44 | #endif | |
| 45 | #ifdef PI | |
| 46 | Perror( "Snark in pi", s); | |
| 47 | #endif | |
| 48 | pexit(DIED); | |
| 49 | } | |
| 50 | ||
| 51 | extern char *errfile; | |
| 52 | /* | |
| 53 | * Error is called for | |
| 54 | * semantic errors and | |
| 55 | * prints the error and | |
| 56 | * a line number. | |
| 57 | */ | |
| 58 | error(a1, a2, a3, a4) | |
| 59 | { | |
| 60 | #ifdef PI | |
| 61 | char buf[256]; | |
| 62 | register int i; | |
| 63 | #endif | |
| 64 | #ifdef PXP | |
| 65 | /* | |
| 66 | int ofout; | |
| 67 | */ | |
| 68 | #endif | |
| 69 | ||
| 70 | if (errpfx == 'w' && opt('w') != 0) | |
| 71 | return; | |
| 72 | #ifdef PXP | |
| 73 | /* | |
| 74 | flush(); | |
| 75 | ofout = fout[0]; | |
| 76 | fout[0] = errout; | |
| 77 | */ | |
| 78 | #endif | |
| 79 | #ifdef PI | |
| 80 | Enocascade = 0; | |
| 81 | geterr(a1, buf); | |
| 82 | a1 = buf; | |
| 83 | #endif | |
| 84 | if (line < 0) | |
| 85 | line = -line; | |
| 86 | yySsync(); | |
| 87 | yysetfile(filename); | |
| 88 | #ifdef PI | |
| 89 | if (errpfx == ' ') { | |
| 90 | printf(" "); | |
| 91 | for (i = line; i >= 10; i =/ 10) | |
| 92 | putchar(' '); | |
| 93 | printf("... "); | |
| 94 | } else if (Enoline) | |
| 95 | printf(" %c - ", errpfx); | |
| 96 | else | |
| 97 | #endif | |
| 98 | fprintf(stderr, "%c %d - ", errpfx, line); | |
| 99 | fprintf(stderr, a1, a2, a3, a4); | |
| 100 | if (errpfx == 'E') | |
| 101 | #ifdef PI | |
| 102 | eflg++, cgenflg++; | |
| 103 | #endif | |
| 104 | #ifdef PXP | |
| 105 | eflg++; | |
| 106 | #endif | |
| 107 | errpfx = 'E'; | |
| 108 | #ifdef PI | |
| 109 | if (Eholdnl) | |
| 110 | Eholdnl = 0; | |
| 111 | else | |
| 112 | #endif | |
| 113 | putc('\n', stderr); | |
| 114 | #ifdef PXP | |
| 115 | /* | |
| 116 | flush(); | |
| 117 | fout[0] = ofout; | |
| 118 | */ | |
| 119 | #endif | |
| 120 | } | |
| 121 | ||
| 122 | #ifdef PI | |
| 123 | cerror(a1, a2, a3, a4) | |
| 124 | { | |
| 125 | ||
| 126 | if (Enocascade) | |
| 127 | return; | |
| 128 | setpfx(' '); | |
| 129 | error(a1, a2, a3, a4); | |
| 130 | } | |
| 131 | #endif |