8 = #define REG_NOMATCH 1
10 = #define REG_ECOLLATE 3
11 = #define REG_ECTYPE 4
12 = #define REG_EESCAPE 5
13 = #define REG_ESUBREG 6
14 = #define REG_EBRACK 7
15 = #define REG_EPAREN 8
16 = #define REG_EBRACE 9
17 = #define REG_BADBR 10
18 = #define REG_ERANGE 11
19 = #define REG_ESPACE 12
20 = #define REG_BADRPT 13
21 = #define REG_EMPTY 14
22 = #define REG_ASSERT 15
23 = #define REG_INVARG 16
24 = #define REG_ATOI 255 // convert name to number (!)
25 = #define REG_ITOA 0400 // convert number to name (!)
32 { REG_OKAY, "REG_OKAY", "no errors detected"},
33 { REG_NOMATCH, "REG_NOMATCH", "regexec() failed to match"},
34 { REG_BADPAT, "REG_BADPAT", "invalid regular expression"},
35 { REG_ECOLLATE, "REG_ECOLLATE", "invalid collating element"},
36 { REG_ECTYPE, "REG_ECTYPE", "invalid character class"},
37 { REG_EESCAPE, "REG_EESCAPE", "trailing backslash (\\)"},
38 { REG_ESUBREG, "REG_ESUBREG", "invalid backreference number"},
39 { REG_EBRACK, "REG_EBRACK", "brackets ([ ]) not balanced"},
40 { REG_EPAREN, "REG_EPAREN", "parentheses not balanced"},
41 { REG_EBRACE, "REG_EBRACE", "braces not balanced"},
42 { REG_BADBR, "REG_BADBR", "invalid repetition count(s)"},
43 { REG_ERANGE, "REG_ERANGE", "invalid character range"},
44 { REG_ESPACE, "REG_ESPACE", "out of memory"},
45 { REG_BADRPT, "REG_BADRPT", "repetition-operator operand invalid"},
46 { REG_EMPTY, "REG_EMPTY", "empty (sub)expression"},
47 { REG_ASSERT, "REG_ASSERT", "\"can't happen\" -- you found a bug"},
48 { REG_INVARG, "REG_INVARG", "invalid argument to regex routine"},
49 { -1, "", "*** unknown regexp error code ***"}
53 - regerror - the interface to error numbers
54 = extern size_t regerror(int, const regex_t *, char *, size_t);
64 register struct rerr *r;
66 register int target = errcode &~ REG_ITOA;
70 if (errcode == REG_ATOI)
71 s = regatoi(preg, convbuf, SIZEOF(convbuf));
73 for (r = rerrs; r->code >= 0; r++)
74 if (r->code == target)
77 if (errcode®_ITOA) {
79 strncpy(convbuf, r->name, SIZEOF(convbuf)-1);
80 convbuf[SIZEOF(convbuf)-1] = '\0';
82 snprintf(convbuf, SIZEOF(convbuf),
83 "REG_0x%x", (unsigned)target);
85 assert(strlen(convbuf) < SIZEOF(convbuf));
92 if (errbuf_size > 0) {
93 (void) strncpy(errbuf, s, errbuf_size-1);
94 errbuf[errbuf_size-1] = '\0';
101 - regatoi - internal routine to implement REG_ATOI
102 == static char *regatoi(const regex_t *preg, char *localbuf, size_t buflen);
106 const regex_t * preg,
110 register struct rerr *r;
112 for (r = rerrs; r->code >= 0; r++) {
114 if (strcmp(r->name, preg->re_endp) == 0)
121 snprintf(localbuf, buflen, "%d", r->code);