10 #include "regerror.ih"
15 = #define REG_NOMATCH 1
16 = #define REG_BADPAT 2
17 = #define REG_ECOLLATE 3
18 = #define REG_ECTYPE 4
19 = #define REG_EESCAPE 5
20 = #define REG_ESUBREG 6
21 = #define REG_EBRACK 7
22 = #define REG_EPAREN 8
23 = #define REG_EBRACE 9
24 = #define REG_BADBR 10
25 = #define REG_ERANGE 11
26 = #define REG_ESPACE 12
27 = #define REG_BADRPT 13
28 = #define REG_EMPTY 14
29 = #define REG_ASSERT 15
30 = #define REG_INVARG 16
31 = #define REG_ATOI 255 // convert name to number (!)
32 = #define REG_ITOA 0400 // convert number to name (!)
34 static const struct rerr
{
39 {REG_OKAY
, "REG_OKAY", "no errors detected"},
40 {REG_NOMATCH
, "REG_NOMATCH", "regexec() failed to match"},
41 {REG_BADPAT
, "REG_BADPAT", "invalid regular expression"},
42 {REG_ECOLLATE
, "REG_ECOLLATE", "invalid collating element"},
43 {REG_ECTYPE
, "REG_ECTYPE", "invalid character class"},
44 {REG_EESCAPE
, "REG_EESCAPE", "trailing backslash (\\)"},
45 {REG_ESUBREG
, "REG_ESUBREG", "invalid backreference number"},
46 {REG_EBRACK
, "REG_EBRACK", "brackets ([ ]) not balanced"},
47 {REG_EPAREN
, "REG_EPAREN", "parentheses not balanced"},
48 {REG_EBRACE
, "REG_EBRACE", "braces not balanced"},
49 {REG_BADBR
, "REG_BADBR", "invalid repetition count(s)"},
50 {REG_ERANGE
, "REG_ERANGE", "invalid character range"},
51 {REG_ESPACE
, "REG_ESPACE", "out of memory"},
52 {REG_BADRPT
, "REG_BADRPT", "repetition-operator operand invalid"},
53 {REG_EMPTY
, "REG_EMPTY", "empty (sub)expression"},
54 {REG_ASSERT
, "REG_ASSERT", "\"can't happen\" -- you found a bug"},
55 {REG_INVARG
, "REG_INVARG", "invalid argument to regex routine"},
56 {-1, "", "*** unknown regexp error code ***"},
60 - regerror - the interface to error numbers
61 = API_EXPORT(size_t) regerror(int, const regex_t *, char *, size_t);
71 register const struct rerr
*r
;
73 register int target
= errcode
&~ REG_ITOA
;
74 register const char *s
;
77 if (errcode
== REG_ATOI
)
78 s
= regatoi(preg
, convbuf
, sizeof(convbuf
));
80 for (r
= rerrs
; r
->code
>= 0; r
++)
81 if (r
->code
== target
)
84 if (errcode
®_ITOA
) {
86 (void) strncpy(convbuf
, r
->name
, sizeof(convbuf
) - 1);
87 convbuf
[sizeof(convbuf
) - 1] = '\0';
89 snprintf(convbuf
, sizeof(convbuf
), "REG_0x%x", target
);
91 assert(strlen(convbuf
) < sizeof(convbuf
));
98 if (errbuf_size
> 0) {
99 if (errbuf_size
> len
)
100 (void) strcpy(errbuf
, s
);
102 (void) strncpy(errbuf
, s
, errbuf_size
-1);
103 errbuf
[errbuf_size
-1] = '\0';
111 - regatoi - internal routine to implement REG_ATOI
112 == static char *regatoi(const regex_t *preg, char *localbuf, int bufsize);
115 regatoi(preg
, localbuf
, bufsize
)
120 register const struct rerr
*r
;
122 for (r
= rerrs
; r
->code
>= 0; r
++)
123 if (strcmp(r
->name
, preg
->re_endp
) == 0)
128 snprintf(localbuf
, bufsize
, "%d", r
->code
);