Regex expression error codes.
| Entry | Description |
|---|---|
| REGEX_ERROR_BADOPTION | |
| REGEX_ERROR_BADOFFSET | |
| REGEX_ERROR_DFA_BADRESTART | |
| REGEX_ERROR_BADRPT | ? * + invalid |
| REGEX_ERROR_DFA_UCOND | |
| REGEX_ERROR_BADBR | invalid repeat counts in {} |
| REGEX_ERROR_NOMATCH | No match was found |
| REGEX_ERROR_ESIZE | expression too big |
| REGEX_ERROR_PARTIAL | |
| REGEX_ERROR_NOSUBSTRING | |
| REGEX_ERROR_BADENDIANNESS | |
| REGEX_ERROR_ECOLLATE | collation error - not relevant |
| REGEX_ERROR_BADMAGIC | |
| REGEX_ERROR_DFA_RECURSE | |
| REGEX_ERROR_SHORTUTF8 | |
| REGEX_ERROR_EPAREN | unbalanced () |
| REGEX_ERROR_EESCAPE | bad escape sequence |
| REGEX_ERROR_EMPTY | empty expression |
| REGEX_ERROR_ESPACE | failed to get memory |
| REGEX_ERROR_ESUBREG | bad back reference |
| REGEX_ERROR_ASSERT | internal error ? |
| REGEX_ERROR_BADCOUNT | |
| REGEX_ERROR_NULL | |
| REGEX_ERROR_DFA_WSSIZE | |
| REGEX_ERROR_BADUTF8 | |
| REGEX_ERROR_NOMEMORY | |
| REGEX_ERROR_DFA_UITEM | |
| REGEX_ERROR_BADPARTIAL | |
| REGEX_ERROR_JIT_BADOPTION | |
| REGEX_ERROR_DFA_UMLIMIT | |
| REGEX_ERROR_INTERNAL | |
| REGEX_ERROR_NULLWSLIMIT | No longer actually used |
| REGEX_ERROR_BADPAT | pattern error |
| REGEX_ERROR_ERANGE | bad range inside [] |
| REGEX_ERROR_UNKNOWN_OPCODE | |
| REGEX_ERROR_BADMODE | |
| REGEX_ERROR_EBRACE | unbalanced {} |
| REGEX_ERROR_ECTYPE | bad class |
| REGEX_ERROR_JIT_STACKLIMIT | |
| REGEX_ERROR_BADNEWLINE | |
| REGEX_ERROR_BADUTF8_OFFSET | |
| REGEX_ERROR_BADLENGTH | |
| REGEX_ERROR_INVARG | bad argument |
| REGEX_ERROR_EBRACK | unbalanced [] |
| REGEX_ERROR_RECURSELOOP | |
| REGEX_ERROR_NONE | No error |
| REGEX_ERROR_RECURSIONLIMIT | |
| REGEX_ERROR_MATCHLIMIT | |
| REGEX_ERROR_CALLOUT | Never used by PCRE itself |