U32 lastcloseparen; /* last paren matched */
U32 reganch; /* Internal use only +
Tainted information used by regexec? */
- const struct regexp_engine* engine;
+ HV *paren_names; /* Paren names */
+ const struct regexp_engine* engine;
regnode program[1]; /* Unwarranted chumminess with compiler. */
} regexp;
} re_scream_pos_data;
typedef struct regexp_engine {
- regexp* (*regcomp) (pTHX_ char* exp, char* xend, PMOP* pm);
- I32 (*regexec) (pTHX_ regexp* prog, char* stringarg, char* strend,
+ regexp* (*comp) (pTHX_ char* exp, char* xend, PMOP* pm);
+ I32 (*exec) (pTHX_ regexp* prog, char* stringarg, char* strend,
char* strbeg, I32 minend, SV* screamer,
void* data, U32 flags);
- char* (*re_intuit_start) (pTHX_ regexp *prog, SV *sv, char *strpos,
- char *strend, U32 flags,
- struct re_scream_pos_data_s *data);
- SV* (*re_intuit_string) (pTHX_ regexp *prog);
- void (*regfree) (pTHX_ struct regexp* r);
-#if defined(USE_ITHREADS)
- regexp* (*regdupe) (pTHX_ const regexp *r, CLONE_PARAMS *param);
+ char* (*intuit) (pTHX_ regexp *prog, SV *sv, char *strpos,
+ char *strend, U32 flags,
+ struct re_scream_pos_data_s *data);
+ SV* (*checkstr) (pTHX_ regexp *prog);
+ void (*free) (pTHX_ struct regexp* r);
+#ifdef USE_ITHREADS
+ regexp* (*dupe) (pTHX_ const regexp *r, CLONE_PARAMS *param);
#endif
} regexp_engine;
#define ROPT_CANY_SEEN 0x00000800
#define ROPT_SANY_SEEN ROPT_CANY_SEEN /* src bckwrd cmpt */
#define ROPT_GPOS_CHECK (ROPT_GPOS_SEEN|ROPT_ANCH_GPOS)
+#define ROPT_RECURSE_SEEN 0x00001000
/* 0xf800 of reganch is used by PMf_COMPILETIME */
/* structures for holding and saving the state maintained by regmatch() */
+#define MAX_RECURSE_EVAL_NOCHANGE_DEPTH 50
+
typedef I32 CHECKPOINT;
typedef struct regmatch_state {
-
- /* these vars contain state that needs to be maintained
- * across the main while loop ... */
-
int resume_state; /* where to jump to on return */
- regnode *scan; /* Current node. */
- regnode *next; /* Next node. */
- bool minmod; /* the next "{n,m}" is a "{n,m}?" */
- bool sw; /* the condition value in (?(cond)a|b) */
- int logical;
- I32 unwind; /* savestack index of current unwind block */
- char *locinput;
-
- /* ... while the rest of these are local to an individual branch */
-
- I32 n; /* no or next */
- I32 ln; /* len or last */
+ char *locinput; /* where to backtrack in string on failure */
union {
struct {
reg_trie_accepted *accept_buff;
U32 accepted; /* how many accepting states we have seen */
- U16 *jump; /* negative offsets from B */
+ U16 *jump; /* positive offsets from me */
regnode *B; /* node following the trie */
- regnode *me; /* only needed for debugging */
+ regnode *me; /* Which node am I - needed for jump tries*/
} trie;
struct {
CHECKPOINT cp; /* remember current savestack indexes */
CHECKPOINT lastcp;
regnode *B; /* the node following us */
+ U32 close_paren; /* which close bracket is our end */
} eval;
struct {
- CHECKPOINT cp; /* remember current savestack indexes */
- struct regmatch_state *outercc; /* outer CURLYX state if any */
-
- /* these contain the current curly state, and are accessed
- * by subsequent WHILEMs */
+ /* this first element must match u.yes */
+ struct regmatch_state *prev_yes_state;
+ struct regmatch_state *prev_curlyx; /* previous cur_curlyx */
+ CHECKPOINT cp; /* remember current savestack index */
+ bool minmod;
int parenfloor;/* how far back to strip paren data */
- int cur; /* how many instances of scan we've matched */
- int min; /* the minimal number of scans to match */
- int max; /* the maximal number of scans to match */
- regnode * scan; /* the thing to match */
- char * lastloc;/* where we started matching this scan */
+ int min; /* the minimal number of A's to match */
+ int max; /* the maximal number of A's to match */
+ regnode *A, *B; /* the nodes corresponding to /A*B/ */
+
+ /* these two are modified by WHILEM */
+ int count; /* how many instances of A we've matched */
+ char *lastloc;/* where previous A matched (0-len detect) */
} curlyx;
struct {
- CHECKPOINT cp; /* remember current savestack indexes */
- CHECKPOINT lastcp;
- struct regmatch_state *savecc;
- char *lastloc; /* Detection of 0-len. */
- I32 cache_offset;
- I32 cache_bit;
+ /* this first element must match u.yes */
+ struct regmatch_state *prev_yes_state;
+ struct regmatch_state *save_curlyx;
+ CHECKPOINT cp; /* remember current savestack indexes */
+ CHECKPOINT lastcp;
+ char *save_lastloc; /* previous curlyx.lastloc */
+ I32 cache_offset;
+ I32 cache_mask;
} whilem;
struct {
/* this first element must match u.yes */
struct regmatch_state *prev_yes_state;
I32 wanted;
+ I32 logical; /* saved copy of 'logical' var */
regnode *me; /* the IFMATCH/SUSPEND/UNLESSM node */
} ifmatch; /* and SUSPEND/UNLESSM */
} u;
https://perl5.git.perl.org / perl5.git / blobdiff