Flags for compiling regex expressions.
These come directly from the pcre library and can be used in regex_compile_ex.
PCRE_CASELESS
#define PCRE_CASELESS 0x00000001 /* Ignore Case */
#define PCRE_MULTILINE 0x00000002 /* Multilines (affects ^ and $ so that they match the start/end of a line rather than matching the start/end of the string). */
#define PCRE_DOTALL 0x00000004 /* Single line (affects . so that it matches any character, even new line characters). */
#define PCRE_EXTENDED 0x00000008 /* Pattern extension (ignore whitespace and # comments). */
#define PCRE_ANCHORED 0x00000010 /* Force pattern anchoring. */
#define PCRE_DOLLAR_ENDONLY 0x00000020 /* $ not to match newline at end. */
#define PCRE_UNGREEDY 0x00000200 /* Invert greediness of quantifiers */
#define PCRE_NOTEMPTY 0x00000400 /* An empty string is not a valid match. */
#define PCRE_UTF8 0x00000800 /* Use UTF-8 Chars */
#define PCRE_NO_UTF8_CHECK 0x00002000 /* Do not check the pattern for UTF-8 validity (only relevant if PCRE_UTF8 is set) */
#define PCRE_NEVER_UTF 0x00010000 /* Lock out interpretation of the pattern as UTF-8 */
#define PCRE_FIRSTLINE 0x00040000 /* Force matching to be before newline */
#define PCRE_DUPNAMES 0x00080000 /* Allow duplicate names for subpattern */
#define PCRE_NEWLINE_CR 0x00100000 /* Specify that a newline is indicated by a single character CR ) */
#define PCRE_NEWLINE_CRLF 0x00300000 /* specify that a newline is indicated by the two-character CRLF sequence ) Overrides the default */
#define PCRE_NEWLINE_ANY 0x00400000 /* Specify that any Unicode newline sequence should be recognized. ) newline definition (LF) */
#define PCRE_NEWLINE_ANYCRLF 0x00500000 /* Specify that any of CR, LF and CRLF sequences should be recognized ) */
#define PCRE_UCP 0x20000000 /* Change the way PCRE processes \B, \b, \D, \d, \S, \s, \W, \w etc. to use Unicode properties */
Regex expression error codes.
This can be used with regex_compile_ex and regex_match_ex.
enum
{
REGEX_ERROR_NONE = 0,
REGEX_ERROR_NOMATCH = -1,
REGEX_ERROR_NULL = -2,
REGEX_ERROR_BADOPTION = -3,
REGEX_ERROR_BADMAGIC = -4,
REGEX_ERROR_UNKNOWN_OPCODE = -5,
REGEX_ERROR_NOMEMORY = -6,
REGEX_ERROR_NOSUBSTRING = -7,
REGEX_ERROR_MATCHLIMIT = -8,
REGEX_ERROR_CALLOUT = -9,
REGEX_ERROR_BADUTF8 = -10,
REGEX_ERROR_BADUTF8_OFFSET = -11,
REGEX_ERROR_PARTIAL = -12,
REGEX_ERROR_BADPARTIAL = -13,
REGEX_ERROR_INTERNAL = -14,
REGEX_ERROR_BADCOUNT = -15,
REGEX_ERROR_DFA_UITEM = -16,
REGEX_ERROR_DFA_UCOND = -17,
REGEX_ERROR_DFA_UMLIMIT = -18,
REGEX_ERROR_DFA_WSSIZE = -19,
REGEX_ERROR_DFA_RECURSE = -20,
REGEX_ERROR_RECURSIONLIMIT = -21,
REGEX_ERROR_NULLWSLIMIT = -22,
REGEX_ERROR_BADNEWLINE = -23,
REGEX_ERROR_BADOFFSET = -24,
REGEX_ERROR_SHORTUTF8 = -25,
REGEX_ERROR_RECURSELOOP = -26,
REGEX_ERROR_JIT_STACKLIMIT = -27,
REGEX_ERROR_BADMODE = -28,
REGEX_ERROR_BADENDIANNESS = -29,
REGEX_ERROR_DFA_BADRESTART = -30,
REGEX_ERROR_JIT_BADOPTION = -31,
REGEX_ERROR_BADLENGTH = -32,
REGEX_ERROR_UNSET = -33
};