1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*++
/* NAME
/* error 3
/* SUMMARY
/* diagnostics
/* PACKAGE
/* unproto
/* SYNOPSIS
/* #include "error.h"
/*
/* void error(quit, text)
/* int quit;
/* char *text;
/*
/* void error_where(quit, path, line, text)
/* int quit;
/* char *path;
/* int line;
/* char *text;
/* DESCRIPTION
/* The routines in this file print a diagnostic (text) and optionally
/* terminate the program (quit != 0) with exit status "quit".
/*
/* error() provides a default context, i.e. the source-file
/* coordinate of the last read token.
/*
/* error_where() allows the caller to explicitly specify context: path
/* is a source-file name, and line is a line number.
/*
/* context is ignored if the line number is zero or if the path
/* is an empty string.
/* AUTHOR(S)
/* Wietse Venema
/* Eindhoven University of Technology
/* Department of Mathematics and Computer Science
/* Den Dolech 2, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
/* LAST MODIFICATION
/* 91/11/30 21:10:35
/* VERSION/RELEASE
/* 1.1
/*--*/
static char error_sccsid[] = "@(#) error.c 1.1 91/11/30 21:10:35";
/* C library */
#include <stdio.h>
void exit();
/* Application-specific stuff */
#include "token.h"
#include "error.h"
/* error - report problem (implicit context) and optionally quit */
void error(quit, text)
int quit;
char *text;
{
error_where(quit, curr_path, curr_line, text);
}
/* error_where - report problem (explicit context) and optionally quit */
void error_where(quit, path, line, text)
int quit;
char *path;
int line;
char *text;
{
if (line && path[0])
fprintf(stderr, "%s, line %d: ", path, line);
fprintf(stderr, "%s\n", text);
if (quit)
exit(quit);
}
|
