projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| eadd54c1 CH |
1 | /* Copyright (c) 1979 Regents of the University of California */ |
| 2 | # | |
| 3 | /* | |
| 4 | * pi - Pascal interpreter code translator | |
| 5 | * | |
| 6 | * Charles Haley, Bill Joy UCB | |
| 7 | * Version 1.1 February 1978 | |
| 8 | * | |
| 9 | * | |
| 10 | * pxp - Pascal execution profiler | |
| 11 | * | |
| 12 | * Bill Joy UCB | |
| 13 | * Version 1.1 February 1978 | |
| 14 | */ | |
| 15 | ||
| 16 | #include "whoami" | |
| 17 | #include "0.h" | |
| 18 | #include "yy.h" | |
| 19 | ||
| 20 | /* | |
| 21 | * Yerror prints an error | |
| 22 | * message and then returns | |
| 23 | * NIL for the tree if needed. | |
| 24 | * The error is flagged on the | |
| 25 | * current line which is printed | |
| 26 | * if the listing is turned off. | |
| 27 | #ifdef PXP | |
| 28 | * | |
| 29 | * As is obvious from the fooling around | |
| 30 | * with fout below, the Pascal system should | |
| 31 | * be changed to use the new library "lS". | |
| 32 | #endif | |
| 33 | */ | |
| 34 | yerror(s, a1, a2, a3, a4, a5) | |
| 35 | char *s; | |
| 36 | { | |
| 37 | #ifdef PI | |
| 38 | char buf[256]; | |
| 39 | #endif | |
| 40 | register int i, j; | |
| 41 | static yySerrs; | |
| 42 | #ifdef PXP | |
| 43 | int ofout; | |
| 44 | #endif | |
| 45 | ||
| 46 | if (errpfx == 'w' && opt('w') != 0) | |
| 47 | return; | |
| 48 | #ifdef PXP | |
| 49 | flush(); | |
| 50 | ofout = fout[0]; | |
| 51 | fout[0] = errout; | |
| 52 | #endif | |
| 53 | yyResume = 0; | |
| 54 | #ifdef PI | |
| 55 | geterr(s, buf); | |
| 56 | s = buf; | |
| 57 | #endif | |
| 58 | yysync(); | |
| 59 | pchr(errpfx); | |
| 60 | pchr(' '); | |
| 61 | for (i = 3; i < yyecol; i++) | |
| 62 | pchr('-'); | |
| 63 | printf("^--- "); | |
| 64 | /* | |
| 65 | if (yyecol > 60) | |
| 66 | printf("\n\t"); | |
| 67 | */ | |
| 68 | printf(s, a1, a2, a3, a4, a5); | |
| 69 | pchr('\n'); | |
| 70 | if (errpfx == 'E') | |
| 71 | #ifdef PI | |
| 72 | eflg++, cgenflg++; | |
| 73 | #endif | |
| 74 | #ifdef PXP | |
| 75 | eflg++; | |
| 76 | #endif | |
| 77 | errpfx = 'E'; | |
| 78 | yySerrs++; | |
| 79 | if (yySerrs >= MAXSYNERR) { | |
| 80 | yySerrs = 0; | |
| 81 | yerror("Too many syntax errors - QUIT"); | |
| 82 | pexit(ERRS); | |
| 83 | } | |
| 84 | #ifdef PXP | |
| 85 | flush(); | |
| 86 | fout[0] = ofout; | |
| 87 | return (0); | |
| 88 | #endif | |
| 89 | } | |
| 90 | ||
| 91 | /* | |
| 92 | * A bracketing error message | |
| 93 | */ | |
| 94 | brerror(where, what) | |
| 95 | int where; | |
| 96 | char *what; | |
| 97 | { | |
| 98 | ||
| 99 | if (where == 0) { | |
| 100 | line = yyeline; | |
| 101 | setpfx(' '); | |
| 102 | error("End matched %s on line %d", what, where); | |
| 103 | return; | |
| 104 | } | |
| 105 | if (where < 0) | |
| 106 | where = -where; | |
| 107 | yerror("Inserted keyword end matching %s on line %d", what, where); | |
| 108 | } |