#else
#define SV_SAVED_COPY
#endif
-
+/* this is ordered such that the most commonly used
+ fields are at the start of the struct */
typedef struct regexp {
- /* Generic details */
- const struct regexp_engine* engine; /* what created this regexp? */
- I32 refcnt; /* Refcount of this regexp */
-
- /* The original string as passed to the compilation routine */
- char *precomp; /* pre-compilation regular expression */
- I32 prelen; /* length of precomp */
-
- /* Used for generic optimisations by the perl core.
- All engines are expected to provide this information. */
+ /* what engine created this regexp? */
+ const struct regexp_engine* engine;
+
+ /* Information about the match that the perl core uses to manage things */
U32 extflags; /* Flags used both externally and internally */
I32 minlen; /* mininum possible length of string to match */
I32 minlenret; /* mininum possible length of $& */
U32 gofs; /* chars left of pos that we search from */
- U32 nparens; /* number of capture buffers */
- HV *paren_names; /* Optional hash of paren names */
- struct reg_substr_data *substrs; /* substring data about strings that must appear
+ struct reg_substr_data *substrs; /* substring data about strings that must appear
in the final match, used for optimisations */
+ U32 nparens; /* number of capture buffers */
- /* Data about the last/current match. Used by the core and therefore
- must be populated by all engines. */
+ /* private engine specific data */
+ U32 intflags; /* Engine Specific Internal flags */
+ void *pprivate; /* Data private to the regex engine which
+ created this object. */
+
+ /* Data about the last/current match. These are modified during matching*/
+ U32 lastparen; /* last open paren matched */
+ U32 lastcloseparen; /* last close paren matched */
+ I32 *startp; /* Array of offsets from start of string (@-) */
+ I32 *endp; /* Array of offsets from start of string (@+) */
char *subbeg; /* saved or original string
so \digit works forever. */
I32 sublen; /* Length of string pointed by subbeg */
- I32 *startp; /* Array of offsets from start of string (@-) */
- I32 *endp; /* Array of offsets from start of string (@+) */
-
SV_SAVED_COPY /* If non-NULL, SV which is COW from original */
- U32 lastparen; /* last open paren matched */
- U32 lastcloseparen; /* last close paren matched */
-
- /* Perl Regex Engine specific data. Other engines shouldn't need
- to touch this. Should be refactored out into a different structure
- and accessed via the *pprivate field. (except intflags) */
- U32 intflags; /* Internal flags */
- void *pprivate; /* Data private to the regex engine which
- created this object. Perl will never mess with
- this member at all. */
+
+
+ /* Information about the match that isn't often used */
+ char *precomp; /* pre-compilation regular expression */
+ I32 prelen; /* length of precomp */
+ I32 seen_evals; /* number of eval groups in the pattern - for security checks */
+ HV *paren_names; /* Optional hash of paren names */
+
+ /* Refcount of this regexp */
+ I32 refcnt; /* Refcount of this regexp */
} regexp;
struct re_scream_pos_data_s *data);
SV* (*checkstr) (pTHX_ regexp *prog);
void (*free) (pTHX_ struct regexp* r);
- char* (*as_str) (pTHX_ MAGIC *mg, STRLEN *lp, U32 *flags, I32 *haseval);
#ifdef USE_ITHREADS
- regexp* (*dupe) (pTHX_ const regexp *r, CLONE_PARAMS *param);
+ void* (*dupe) (pTHX_ const regexp *r, CLONE_PARAMS *param);
#endif
} regexp_engine;