struct regexp;
struct reg_substr_datum {
- I32 min_offset;
- I32 max_offset;
+ SSize_t min_offset;
+ SSize_t max_offset;
SV *substr; /* non-utf8 variant */
SV *utf8_substr; /* utf8 variant */
- I32 end_shift;
+ SSize_t end_shift;
};
struct reg_substr_data {
struct reg_substr_datum data[3]; /* Actual array */
/* offsets within a string of a particular /(.)/ capture */
typedef struct regexp_paren_pair {
- I32 start;
- I32 end;
+ SSize_t start;
+ SSize_t end;
/* 'start_tmp' records a new opening position before the matching end
* has been found, so that the old start and end values are still
* valid, e.g.
* "abc" =~ /(.(?{print "[$1]"}))+/
*outputs [][a][b]
* This field is not part of the API. */
- I32 start_tmp;
+ SSize_t start_tmp;
} regexp_paren_pair;
#if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_UTF8_C)
/* Information about the match that the perl core uses to */ \
/* manage things */ \
U32 extflags; /* Flags used both externally and internally */ \
- I32 minlen; /* mininum possible number of chars in string to match */\
- I32 minlenret; /* mininum possible number of chars in $& */ \
- U32 gofs; /* chars left of pos that we search from */ \
+ SSize_t minlen; /* mininum possible number of chars in string to match */\
+ SSize_t minlenret; /* mininum possible number of chars in $& */ \
+ STRLEN gofs; /* chars left of pos that we search from */ \
/* substring data about strings that must appear in the */ \
/* final match, used for optimisations */ \
struct reg_substr_data *substrs; \
/* saved or original string so \digit works forever. */ \
char *subbeg; \
SV_SAVED_COPY /* If non-NULL, SV which is COW from original */\
- I32 sublen; /* Length of string pointed by subbeg */ \
- I32 suboffset; /* byte offset of subbeg from logical start of str */ \
- I32 subcoffset; /* suboffset equiv, but in chars (for @-/@+) */ \
+ SSize_t sublen; /* Length of string pointed by subbeg */ \
+ SSize_t suboffset; /* byte offset of subbeg from logical start of str */ \
+ SSize_t subcoffset; /* suboffset equiv, but in chars (for @-/@+) */ \
/* Information about the match that isn't often used */ \
/* offset from wrapped to the start of precomp */ \
PERL_BITFIELD32 pre_prefix:4; \
typedef struct re_scream_pos_data_s
{
char **scream_olds; /* match pos */
- I32 *scream_pos; /* Internal iterator of scream. */
+ SSize_t *scream_pos; /* Internal iterator of scream. */
} re_scream_pos_data;
/* regexp_engine structure. This is the dispatch table for regexes.
typedef struct regexp_engine {
REGEXP* (*comp) (pTHX_ SV * const pattern, U32 flags);
I32 (*exec) (pTHX_ REGEXP * const rx, char* stringarg, char* strend,
- char* strbeg, I32 minend, SV* screamer,
+ char* strbeg, SSize_t minend, SV* sv,
void* data, U32 flags);
char* (*intuit) (pTHX_
REGEXP * const rx,
#define RX_LASTPAREN(prog) (ReANY(prog)->lastparen)
#define RX_LASTCLOSEPAREN(prog) (ReANY(prog)->lastcloseparen)
#define RX_SAVED_COPY(prog) (ReANY(prog)->saved_copy)
+/* last match was zero-length */
+#define RX_ZERO_LEN(prog) \
+ (RX_OFFS(prog)[0].start + (SSize_t)RX_GOFS(prog) \
+ == RX_OFFS(prog)[0].end)
#endif /* PLUGGABLE_RE_EXTENSION */
/* Whether the pattern stored at RX_WRAPPED is in UTF-8 */
#define RX_UTF8(prog) SvUTF8(prog)
-#define REXEC_COPY_STR 0x01 /* Need to copy the string. */
-#define REXEC_CHECKED 0x02 /* check_substr already checked. */
-#define REXEC_SCREAM 0x04 /* use scream table. */
-#define REXEC_IGNOREPOS 0x08 /* \G matches at start. */
-#define REXEC_NOT_FIRST 0x10 /* This is another iteration of //g. */
- /* under REXEC_COPY_STR, it's ok for the
- * engine (modulo PL_sawamperand etc)
- * to skip copying ... */
-#define REXEC_COPY_SKIP_PRE 0x20 /* ...the $` part of the string, or */
-#define REXEC_COPY_SKIP_POST 0x40 /* ...the $' part of the string */
+
+/* bits in flags arg of Perl_regexec_flags() */
+
+#define REXEC_COPY_STR 0x01 /* Need to copy the string for captures. */
+#define REXEC_CHECKED 0x02 /* re_intuit_start() already called. */
+#define REXEC_SCREAM 0x04 /* currently unused. */
+#define REXEC_IGNOREPOS 0x08 /* use stringarg, not pos(), for \G match */
+#define REXEC_NOT_FIRST 0x10 /* This is another iteration of //g:
+ no need to copy string again */
+
+ /* under REXEC_COPY_STR, it's ok for the
+ engine (modulo PL_sawamperand etc)
+ to skip copying: ... */
+#define REXEC_COPY_SKIP_PRE 0x20 /* ...the $` part of the string, or */
+#define REXEC_COPY_SKIP_POST 0x40 /* ...the $' part of the string */
+#define REXEC_FAIL_ON_UNDERFLOW 0x80 /* fail the match if $& would start before
+ the start pos (so s/.\G// would fail
+ on second iteration */
#if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN)
# define ReREFCNT_inc(re) \
STRLEN suboffset; /* saved suboffset field from rex */
STRLEN subcoffset; /* saved subcoffset field from rex */
MAGIC *pos_magic; /* pos() magic attached to $_ */
- I32 pos; /* the original value of pos() in pos_magic */
+ SSize_t pos; /* the original value of pos() in pos_magic */
+ U8 pos_flags; /* flags to be restored; currently only MGf_BYTES*/
} regmatch_info_aux_eval;
* regmatch_state union. */
typedef struct {
- REGEXP *prog;
+ REGEXP *prog; /* the regex being executed */
const char * strbeg; /* real start of string */
- char *strend; /* one byte beyond last char of match string */
- char *till;
- SV *sv;
- char *ganch;
- char *cutpoint;
+ char *strend; /* one byte beyond last char of match string */
+ char *till; /* matches shorter than this fail (see minlen arg) */
+ SV *sv; /* the SV string currently being matched */
+ char *ganch; /* position of \G anchor */
+ char *cutpoint; /* (*COMMIT) position (if any) */
regmatch_info_aux *info_aux; /* extra fields that need cleanup */
regmatch_info_aux_eval *info_aux_eval; /* extra saved state for (?{}) */
I32 poscache_maxiter; /* how many whilems todo before S-L cache kicks in */
struct regmatch_slab *prev, *next;
} regmatch_slab;
-#define PL_reg_starttry PL_reg_state.re_state_reg_starttry
-
-struct re_save_state {
- char *re_state_reg_starttry; /* from regexec.c */
-};
-#define SAVESTACK_ALLOC_FOR_RE_SAVE_STATE \
- (1 + ((sizeof(struct re_save_state) - 1) / sizeof(*PL_savestack)))
/*
* Local variables:
https://perl5.git.perl.org / perl5.git / blobdiff