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