projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 0fc6e47b KB |
1 | /*- |
| 2 | * Copyright (c) 1980 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * %sccs.include.redist.c% | |
| 252367af DF |
6 | */ |
| 7 | ||
| 8 | #ifndef lint | |
| 0fc6e47b KB |
9 | static char sccsid[] = "@(#)yyerror.c 5.2 (Berkeley) %G%"; |
| 10 | #endif /* not lint */ | |
| 252367af | 11 | |
| 0da4719d PK |
12 | /* |
| 13 | * pi - Pascal interpreter code translator | |
| 14 | * | |
| 15 | * Charles Haley, Bill Joy UCB | |
| 16 | * Version 1.2 January 1979 | |
| 17 | * | |
| 18 | * | |
| 19 | * pxp - Pascal execution profiler | |
| 20 | * | |
| 21 | * Bill Joy UCB | |
| 22 | * Version 1.2 January 1979 | |
| 23 | */ | |
| 24 | ||
| 84ef74c0 | 25 | #include "whoami.h" |
| 0da4719d PK |
26 | #include "0.h" |
| 27 | #include "yy.h" | |
| 28 | ||
| 29 | /* | |
| 30 | * Yerror prints an error | |
| 31 | * message and then returns | |
| 32 | * NIL for the tree if needed. | |
| 33 | * The error is flagged on the | |
| 34 | * current line which is printed | |
| 35 | * if the listing is turned off. | |
| 36 | #ifdef PXP | |
| 37 | * | |
| 38 | * As is obvious from the fooling around | |
| 39 | * with fout below, the Pascal system should | |
| 40 | * be changed to use the new library "lS". | |
| 41 | #endif | |
| 42 | */ | |
| 43 | yerror(s, a1, a2, a3, a4, a5) | |
| 44 | char *s; | |
| 45 | { | |
| 46 | #ifdef PI | |
| 47 | char buf[256]; | |
| 48 | #endif | |
| 49 | register int i, j; | |
| 50 | static yySerrs; | |
| 51 | #ifdef PXP | |
| 52 | /* | |
| 53 | int ofout; | |
| 54 | */ | |
| 55 | #endif | |
| 56 | ||
| 57 | if (errpfx == 'w' && opt('w') != 0) | |
| 58 | return; | |
| 59 | #ifdef PXP | |
| 60 | /* | |
| 61 | flush(); | |
| 62 | ofout = fout[0]; | |
| 63 | fout[0] = errout; | |
| 64 | */ | |
| 65 | #endif | |
| 66 | yyResume = 0; | |
| 67 | #ifdef PI | |
| 68 | geterr(s, buf); | |
| 69 | s = buf; | |
| 70 | #endif | |
| 71 | yysync(); | |
| 72 | putc(errpfx, stderr); | |
| 73 | putc(' ', stderr); | |
| 74 | for (i = 3; i < yyecol; i++) | |
| 75 | putc('-', stderr); | |
| 76 | fprintf(stderr, "^--- "); | |
| 77 | /* | |
| 78 | if (yyecol > 60) | |
| 79 | printf("\n\t"); | |
| 80 | */ | |
| 81 | fprintf(stderr, s, a1, a2, a3, a4, a5); | |
| 82 | putc('\n', stderr); | |
| 83 | if (errpfx == 'E') | |
| 84 | #ifdef PI | |
| 85 | eflg++, cgenflg++; | |
| 86 | #endif | |
| 87 | #ifdef PXP | |
| 88 | eflg++; | |
| 89 | #endif | |
| 90 | errpfx = 'E'; | |
| 91 | yySerrs++; | |
| 92 | if (yySerrs >= MAXSYNERR) { | |
| 93 | yySerrs = 0; | |
| 94 | yerror("Too many syntax errors - QUIT"); | |
| 95 | pexit(ERRS); | |
| 96 | } | |
| 97 | #ifdef PXP | |
| 98 | /* | |
| 99 | flush(); | |
| 100 | fout[0] = ofout; | |
| 101 | */ | |
| 102 | return (0); | |
| 103 | #endif | |
| 104 | } | |
| 105 | ||
| 106 | /* | |
| 107 | * A bracketing error message | |
| 108 | */ | |
| 109 | brerror(where, what) | |
| 110 | int where; | |
| 111 | char *what; | |
| 112 | { | |
| 113 | ||
| 114 | if (where == 0) { | |
| 115 | line = yyeline; | |
| 116 | setpfx(' '); | |
| 117 | error("End matched %s on line %d", what, where); | |
| 118 | return; | |
| 119 | } | |
| 120 | if (where < 0) | |
| 121 | where = -where; | |
| 122 | yerror("Inserted keyword end matching %s on line %d", what, where); | |
| 123 | } |