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- /* regexp.h
- *
- * Copyright (C) 1993, 1994, 1996, 1997, 1999, 2000, 2001, 2003,
- * 2005, 2006, 2007, by Larry Wall and others
- *
- * You may distribute under the terms of either the GNU General Public
- * License or the Artistic License, as specified in the README file.
- *
- */
-
- /*
- * Definitions etc. for regexp(3) routines.
- *
- * Caveat: this is V8 regexp(3) [actually, a reimplementation thereof],
- * not the System V one.
- */
- #ifndef PLUGGABLE_RE_EXTENSION
- /* we don't want to include this stuff if we are inside of
- an external regex engine based on the core one - like re 'debug'*/
-
- struct regnode {
- U8 flags;
- U8 type;
- U16 next_off;
- };
-
- typedef struct regnode regnode;
-
- struct reg_substr_data;
-
- struct reg_data;
-
- struct regexp_engine;
- struct regexp;
-
- struct reg_substr_datum {
- I32 min_offset;
- I32 max_offset;
- SV *substr; /* non-utf8 variant */
- SV *utf8_substr; /* utf8 variant */
- I32 end_shift;
- };
- struct reg_substr_data {
- struct reg_substr_datum data[3]; /* Actual array */
- };
-
- #ifdef PERL_OLD_COPY_ON_WRITE
- #define SV_SAVED_COPY SV *saved_copy; /* If non-NULL, SV which is COW from original */
- #else
- #define SV_SAVED_COPY
- #endif
-
- typedef struct regexp_paren_pair {
- I32 start;
- I32 end;
- } regexp_paren_pair;
-
- /*
- The regexp/REGEXP struct, see L<perlreapi> for further documentation
- on the individual fields. The struct is ordered so that the most
- commonly used fields are placed at the start.
-
- Any patch that adds items to this struct will need to include
- changes to F<sv.c> (C<Perl_re_dup()>) and F<regcomp.c>
- (C<pregfree()>). This involves freeing or cloning items in the
- regexp's data array based on the data item's type.
- */
-
- typedef struct regexp {
- /* what engine created this regexp? */
- const struct regexp_engine* engine;
- struct regexp* mother_re; /* what re is this a lightweight copy of? */
-
- /* 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 */
- 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 */
-
- /* 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 */
- regexp_paren_pair *swap; /* Swap copy of *offs */
- regexp_paren_pair *offs; /* Array of offsets for (@-) and (@+) */
-
- char *subbeg; /* saved or original string
- so \digit works forever. */
- SV_SAVED_COPY /* If non-NULL, SV which is COW from original */
- I32 sublen; /* Length of string pointed by subbeg */
-
-
- /* Information about the match that isn't often used */
- I32 prelen; /* length of precomp */
- const char *precomp; /* pre-compilation regular expression */
- /* wrapped can't be const char*, as it is returned by sv_2pv_flags */
- char *wrapped; /* wrapped version of the pattern */
- I32 wraplen; /* length of wrapped */
- 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;
-
- /* used for high speed searches */
- typedef struct re_scream_pos_data_s
- {
- char **scream_olds; /* match pos */
- I32 *scream_pos; /* Internal iterator of scream. */
- } re_scream_pos_data;
-
- /* regexp_engine structure. This is the dispatch table for regexes.
- * Any regex engine implementation must be able to build one of these.
- */
- typedef struct regexp_engine {
- REGEXP* (*comp) (pTHX_ const SV * const pattern, const U32 flags);
- I32 (*exec) (pTHX_ REGEXP * const rx, char* stringarg, char* strend,
- char* strbeg, I32 minend, SV* screamer,
- void* data, U32 flags);
- char* (*intuit) (pTHX_ REGEXP * const rx, SV *sv, char *strpos,
- char *strend, const U32 flags,
- re_scream_pos_data *data);
- SV* (*checkstr) (pTHX_ REGEXP * const rx);
- void (*free) (pTHX_ REGEXP * const rx);
- void (*numbered_buff_FETCH) (pTHX_ REGEXP * const rx, const I32 paren,
- SV * const sv);
- void (*numbered_buff_STORE) (pTHX_ REGEXP * const rx, const I32 paren,
- SV const * const value);
- I32 (*numbered_buff_LENGTH) (pTHX_ REGEXP * const rx, const SV * const sv,
- const I32 paren);
- SV* (*named_buff) (pTHX_ REGEXP * const rx, SV * const key,
- SV * const value, const U32 flags);
- SV* (*named_buff_iter) (pTHX_ REGEXP * const rx, const SV * const lastkey,
- const U32 flags);
- SV* (*qr_package)(pTHX_ REGEXP * const rx);
- #ifdef USE_ITHREADS
- void* (*dupe) (pTHX_ REGEXP * const rx, CLONE_PARAMS *param);
- #endif
- } regexp_engine;
-
- /*
- These are passed to the numbered capture variable callbacks as the
- paren name. >= 1 is reserved for actual numbered captures, i.e. $1,
- $2 etc.
- */
- #define RX_BUFF_IDX_PREMATCH -2 /* $` / ${^PREMATCH} */
- #define RX_BUFF_IDX_POSTMATCH -1 /* $' / ${^POSTMATCH} */
- #define RX_BUFF_IDX_FULLMATCH 0 /* $& / ${^MATCH} */
-
- /*
- Flags that are passed to the named_buff and named_buff_iter
- callbacks above. Those routines are called from universal.c via the
- Tie::Hash::NamedCapture interface for %+ and %- and the re::
- functions in the same file.
- */
-
- /* The Tie::Hash::NamedCapture operation this is part of, if any */
- #define RXapif_FETCH 0x0001
- #define RXapif_STORE 0x0002
- #define RXapif_DELETE 0x0004
- #define RXapif_CLEAR 0x0008
- #define RXapif_EXISTS 0x0010
- #define RXapif_SCALAR 0x0020
- #define RXapif_FIRSTKEY 0x0040
- #define RXapif_NEXTKEY 0x0080
-
- /* Whether %+ or %- is being operated on */
- #define RXapif_ONE 0x0100 /* %+ */
- #define RXapif_ALL 0x0200 /* %- */
-
- /* Whether this is being called from a re:: function */
- #define RXapif_REGNAME 0x0400
- #define RXapif_REGNAMES 0x0800
- #define RXapif_REGNAMES_COUNT 0x1000
-
- /*
- =head1 REGEXP Functions
-
- =for apidoc Am|REGEXP *|SvRX|SV *sv
-
- Convenience macro to get the REGEXP from a SV. This is approximately
- equivalent to the following snippet:
-
- if (SvMAGICAL(sv))
- mg_get(sv);
- if (SvROK(sv) &&
- (tmpsv = (SV*)SvRV(sv)) &&
- SvTYPE(tmpsv) == SVt_PVMG &&
- (tmpmg = mg_find(tmpsv, PERL_MAGIC_qr)))
- {
- return (REGEXP *)tmpmg->mg_obj;
- }
-
- NULL will be returned if a REGEXP* is not found.
-
- =for apidoc Am|bool|SvRXOK|SV* sv
-
- Returns a boolean indicating whether the SV contains qr magic
- (PERL_MAGIC_qr).
-
- If you want to do something with the REGEXP* later use SvRX instead
- and check for NULL.
-
- =cut
- */
-
- #define SvRX(sv) (Perl_get_re_arg(aTHX_ sv))
- #define SvRXOK(sv) (Perl_get_re_arg(aTHX_ sv) ? TRUE : FALSE)
-
-
- /* Flags stored in regexp->extflags
- * These are used by code external to the regexp engine
- *
- * Note that flags starting with RXf_PMf_ have exact equivalents
- * stored in op_pmflags and which are defined in op.h, they are defined
- * numerically here only for clarity.
- *
- * NOTE: if you modify any RXf flags you should run regen.pl or regcomp.pl
- * so that regnodes.h is updated with the changes.
- *
- */
-
- /* Anchor and GPOS related stuff */
- #define RXf_ANCH_BOL 0x00000001
- #define RXf_ANCH_MBOL 0x00000002
- #define RXf_ANCH_SBOL 0x00000004
- #define RXf_ANCH_GPOS 0x00000008
- #define RXf_GPOS_SEEN 0x00000010
- #define RXf_GPOS_FLOAT 0x00000020
- /* two bits here */
- #define RXf_ANCH (RXf_ANCH_BOL|RXf_ANCH_MBOL|RXf_ANCH_GPOS|RXf_ANCH_SBOL)
- #define RXf_GPOS_CHECK (RXf_GPOS_SEEN|RXf_ANCH_GPOS)
- #define RXf_ANCH_SINGLE (RXf_ANCH_SBOL|RXf_ANCH_GPOS)
-
- /* Flags indicating special patterns */
- #define RXf_SKIPWHITE 0x00000100 /* Pattern is for a split / / */
- #define RXf_START_ONLY 0x00000200 /* Pattern is /^/ */
- #define RXf_WHITE 0x00000400 /* Pattern is /\s+/ */
- #define RXf_NULL 0x40000000 /* Pattern is // */
-
- /* 0x1F800 of extflags is used by (RXf_)PMf_COMPILETIME */
- #define RXf_PMf_LOCALE 0x00000800 /* use locale */
- #define RXf_PMf_MULTILINE 0x00001000 /* /m */
- #define RXf_PMf_SINGLELINE 0x00002000 /* /s */
- #define RXf_PMf_FOLD 0x00004000 /* /i */
- #define RXf_PMf_EXTENDED 0x00008000 /* /x */
- #define RXf_PMf_KEEPCOPY 0x00010000 /* /p */
- /* these flags are transfered from the PMOP->op_pmflags member during compilation */
- #define RXf_PMf_STD_PMMOD (RXf_PMf_MULTILINE|RXf_PMf_SINGLELINE|RXf_PMf_FOLD|RXf_PMf_EXTENDED)
- #define RXf_PMf_COMPILETIME (RXf_PMf_MULTILINE|RXf_PMf_SINGLELINE|RXf_PMf_LOCALE|RXf_PMf_FOLD|RXf_PMf_EXTENDED|RXf_PMf_KEEPCOPY)
-
- #define CASE_STD_PMMOD_FLAGS_PARSE_SET(pmfl) \
- case IGNORE_PAT_MOD: *(pmfl) |= RXf_PMf_FOLD; break; \
- case MULTILINE_PAT_MOD: *(pmfl) |= RXf_PMf_MULTILINE; break; \
- case SINGLE_PAT_MOD: *(pmfl) |= RXf_PMf_SINGLELINE; break; \
- case XTENDED_PAT_MOD: *(pmfl) |= RXf_PMf_EXTENDED; break
-
- /* chars and strings used as regex pattern modifiers
- * Singlular is a 'c'har, plural is a "string"
- *
- * NOTE, KEEPCOPY was originally 'k', but was changed to 'p' for preserve
- * for compatibility reasons with Regexp::Common which highjacked (?k:...)
- * for its own uses. So 'k' is out as well.
- */
- #define EXEC_PAT_MOD 'e'
- #define KEEPCOPY_PAT_MOD 'p'
- #define ONCE_PAT_MOD 'o'
- #define GLOBAL_PAT_MOD 'g'
- #define CONTINUE_PAT_MOD 'c'
- #define MULTILINE_PAT_MOD 'm'
- #define SINGLE_PAT_MOD 's'
- #define IGNORE_PAT_MOD 'i'
- #define XTENDED_PAT_MOD 'x'
-
- #define ONCE_PAT_MODS "o"
- #define KEEPCOPY_PAT_MODS "p"
- #define EXEC_PAT_MODS "e"
- #define LOOP_PAT_MODS "gc"
-
- #define STD_PAT_MODS "msix"
-
- #define INT_PAT_MODS STD_PAT_MODS KEEPCOPY_PAT_MODS
-
- #define EXT_PAT_MODS ONCE_PAT_MODS KEEPCOPY_PAT_MODS
- #define QR_PAT_MODS STD_PAT_MODS EXT_PAT_MODS
- #define M_PAT_MODS QR_PAT_MODS LOOP_PAT_MODS
- #define S_PAT_MODS M_PAT_MODS EXEC_PAT_MODS
-
- /*
- * NOTE: if you modify any RXf flags you should run regen.pl or regcomp.pl
- * so that regnodes.h is updated with the changes.
- *
- */
-
- /* What we have seen */
- #define RXf_LOOKBEHIND_SEEN 0x00020000
- #define RXf_EVAL_SEEN 0x00040000
- #define RXf_CANY_SEEN 0x00080000
-
- /* Special */
- #define RXf_NOSCAN 0x00100000
- #define RXf_CHECK_ALL 0x00200000
-
- /* UTF8 related */
- #define RXf_UTF8 0x00400000
- #define RXf_MATCH_UTF8 0x00800000
-
- /* Intuit related */
- #define RXf_USE_INTUIT_NOML 0x01000000
- #define RXf_USE_INTUIT_ML 0x02000000
- #define RXf_INTUIT_TAIL 0x04000000
-
- /*
- Set in Perl_pmruntime if op_flags & OPf_SPECIAL, i.e. split. Will
- be used by regex engines to check whether they should set
- RXf_SKIPWHITE
- */
- #define RXf_SPLIT 0x08000000
-
- #define RXf_USE_INTUIT (RXf_USE_INTUIT_NOML|RXf_USE_INTUIT_ML)
-
- /* Copy and tainted info */
- #define RXf_COPY_DONE 0x10000000
- #define RXf_TAINTED_SEEN 0x20000000
- #define RXf_TAINTED 0x80000000 /* this pattern is tainted */
-
- /*
- * NOTE: if you modify any RXf flags you should run regen.pl or regcomp.pl
- * so that regnodes.h is updated with the changes.
- *
- */
-
- #define RX_HAS_CUTGROUP(prog) ((prog)->intflags & PREGf_CUTGROUP_SEEN)
- #define RX_MATCH_TAINTED(prog) ((prog)->extflags & RXf_TAINTED_SEEN)
- #define RX_MATCH_TAINTED_on(prog) ((prog)->extflags |= RXf_TAINTED_SEEN)
- #define RX_MATCH_TAINTED_off(prog) ((prog)->extflags &= ~RXf_TAINTED_SEEN)
- #define RX_MATCH_TAINTED_set(prog, t) ((t) \
- ? RX_MATCH_TAINTED_on(prog) \
- : RX_MATCH_TAINTED_off(prog))
-
- #define RX_MATCH_COPIED(prog) ((prog)->extflags & RXf_COPY_DONE)
- #define RX_MATCH_COPIED_on(prog) ((prog)->extflags |= RXf_COPY_DONE)
- #define RX_MATCH_COPIED_off(prog) ((prog)->extflags &= ~RXf_COPY_DONE)
- #define RX_MATCH_COPIED_set(prog,t) ((t) \
- ? RX_MATCH_COPIED_on(prog) \
- : RX_MATCH_COPIED_off(prog))
-
- #endif /* PLUGGABLE_RE_EXTENSION */
-
- /* Stuff that needs to be included in the plugable extension goes below here */
-
- #ifdef PERL_OLD_COPY_ON_WRITE
- #define RX_MATCH_COPY_FREE(rx) \
- STMT_START {if (rx->saved_copy) { \
- SV_CHECK_THINKFIRST_COW_DROP(rx->saved_copy); \
- } \
- if (RX_MATCH_COPIED(rx)) { \
- Safefree(rx->subbeg); \
- RX_MATCH_COPIED_off(rx); \
- }} STMT_END
- #else
- #define RX_MATCH_COPY_FREE(rx) \
- STMT_START {if (RX_MATCH_COPIED(rx)) { \
- Safefree(rx->subbeg); \
- RX_MATCH_COPIED_off(rx); \
- }} STMT_END
- #endif
-
- #define RX_MATCH_UTF8(prog) ((prog)->extflags & RXf_MATCH_UTF8)
- #define RX_MATCH_UTF8_on(prog) ((prog)->extflags |= RXf_MATCH_UTF8)
- #define RX_MATCH_UTF8_off(prog) ((prog)->extflags &= ~RXf_MATCH_UTF8)
- #define RX_MATCH_UTF8_set(prog, t) ((t) \
- ? (RX_MATCH_UTF8_on(prog), (PL_reg_match_utf8 = 1)) \
- : (RX_MATCH_UTF8_off(prog), (PL_reg_match_utf8 = 0)))
-
- #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. */
-
- #define ReREFCNT_inc(re) ((void)(re && re->refcnt++), re)
- #define ReREFCNT_dec(re) CALLREGFREE(re)
-
- #define FBMcf_TAIL_DOLLAR 1
- #define FBMcf_TAIL_DOLLARM 2
- #define FBMcf_TAIL_Z 4
- #define FBMcf_TAIL_z 8
- #define FBMcf_TAIL (FBMcf_TAIL_DOLLAR|FBMcf_TAIL_DOLLARM|FBMcf_TAIL_Z|FBMcf_TAIL_z)
-
- #define FBMrf_MULTILINE 1
-
- /* an accepting state/position*/
- struct _reg_trie_accepted {
- U8 *endpos;
- U16 wordnum;
- };
- typedef struct _reg_trie_accepted reg_trie_accepted;
-
- /* some basic information about the current match that is created by
- * Perl_regexec_flags and then passed to regtry(), regmatch() etc */
-
- typedef struct {
- regexp *prog;
- char *bol;
- char *till;
- SV *sv;
- char *ganch;
- char *cutpoint;
- } regmatch_info;
-
-
- /* structures for holding and saving the state maintained by regmatch() */
-
- #ifndef MAX_RECURSE_EVAL_NOCHANGE_DEPTH
- #define MAX_RECURSE_EVAL_NOCHANGE_DEPTH 1000
- #endif
-
- typedef I32 CHECKPOINT;
-
- typedef struct regmatch_state {
- int resume_state; /* where to jump to on return */
- char *locinput; /* where to backtrack in string on failure */
-
- union {
-
- /* this is a fake union member that matches the first element
- * of each member that needs to store positive backtrack
- * information */
- struct {
- struct regmatch_state *prev_yes_state;
- } yes;
-
- /* branchlike members */
- /* this is a fake union member that matches the first elements
- * of each member that needs to behave like a branch */
- struct {
- /* this first element must match u.yes */
- struct regmatch_state *prev_yes_state;
- U32 lastparen;
- CHECKPOINT cp;
-
- } branchlike;
-
- struct {
- /* the first elements must match u.branchlike */
- struct regmatch_state *prev_yes_state;
- U32 lastparen;
- CHECKPOINT cp;
-
- regnode *next_branch; /* next branch node */
- } branch;
-
- struct {
- /* the first elements must match u.branchlike */
- struct regmatch_state *prev_yes_state;
- U32 lastparen;
- CHECKPOINT cp;
-
- reg_trie_accepted *accept_buff; /* accepting states we have seen */
- U32 accepted; /* how many accepting states we have seen */
- U16 *jump; /* positive offsets from me */
- regnode *B; /* node following the trie */
- regnode *me; /* Which node am I - needed for jump tries*/
- } trie;
-
- /* special types - these members are used to store state for special
- regops like eval, if/then, lookaround and the markpoint state */
- struct {
- /* this first element must match u.yes */
- struct regmatch_state *prev_yes_state;
- struct regmatch_state *prev_eval;
- struct regmatch_state *prev_curlyx;
- regexp *prev_rex;
- U32 toggle_reg_flags; /* what bits in PL_reg_flags to
- flip when transitioning between
- inner and outer rexen */
- CHECKPOINT cp; /* remember current savestack indexes */
- CHECKPOINT lastcp;
- U32 close_paren; /* which close bracket is our end */
- regnode *B; /* the node following us */
- } eval;
-
- 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 */
-
- struct {
- /* this first element must match u.yes */
- struct regmatch_state *prev_yes_state;
- struct regmatch_state *prev_mark;
- SV* mark_name;
- char *mark_loc;
- } mark;
-
- struct {
- int val;
- } keeper;
-
- /* quantifiers - these members are used for storing state for
- for the regops used to implement quantifiers */
- struct {
- /* this first element must match u.yes */
- struct regmatch_state *prev_yes_state;
- struct regmatch_state *prev_curlyx; /* previous cur_curlyx */
- regnode *A, *B; /* the nodes corresponding to /A*B/ */
- CHECKPOINT cp; /* remember current savestack index */
- bool minmod;
- int parenfloor;/* how far back to strip paren data */
- int min; /* the minimal number of A's to match */
- int max; /* the maximal number of A's to match */
-
- /* 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 {
- /* 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 c1, c2; /* case fold search */
- CHECKPOINT cp;
- I32 alen; /* length of first-matched A string */
- I32 count;
- bool minmod;
- regnode *A, *B; /* the nodes corresponding to /A*B/ */
- regnode *me; /* the curlym node */
- } curlym;
-
- struct {
- U32 paren;
- CHECKPOINT cp;
- I32 c1, c2; /* case fold search */
- char *maxpos; /* highest possible point in string to match */
- char *oldloc; /* the previous locinput */
- int count;
- int min, max; /* {m,n} */
- regnode *A, *B; /* the nodes corresponding to /A*B/ */
- } curly; /* and CURLYN/PLUS/STAR */
-
- } u;
- } regmatch_state;
-
- /* how many regmatch_state structs to allocate as a single slab.
- * We do it in 4K blocks for efficiency. The "3" is 2 for the next/prev
- * pointers, plus 1 for any mythical malloc overhead. */
-
- #define PERL_REGMATCH_SLAB_SLOTS \
- ((4096 - 3 * sizeof (void*)) / sizeof(regmatch_state))
-
- typedef struct regmatch_slab {
- regmatch_state states[PERL_REGMATCH_SLAB_SLOTS];
- struct regmatch_slab *prev, *next;
- } regmatch_slab;
-
- #define PL_reg_flags PL_reg_state.re_state_reg_flags
- #define PL_bostr PL_reg_state.re_state_bostr
- #define PL_reginput PL_reg_state.re_state_reginput
- #define PL_regeol PL_reg_state.re_state_regeol
- #define PL_regoffs PL_reg_state.re_state_regoffs
- #define PL_reglastparen PL_reg_state.re_state_reglastparen
- #define PL_reglastcloseparen PL_reg_state.re_state_reglastcloseparen
- #define PL_reg_start_tmp PL_reg_state.re_state_reg_start_tmp
- #define PL_reg_start_tmpl PL_reg_state.re_state_reg_start_tmpl
- #define PL_reg_eval_set PL_reg_state.re_state_reg_eval_set
- #define PL_reg_match_utf8 PL_reg_state.re_state_reg_match_utf8
- #define PL_reg_magic PL_reg_state.re_state_reg_magic
- #define PL_reg_oldpos PL_reg_state.re_state_reg_oldpos
- #define PL_reg_oldcurpm PL_reg_state.re_state_reg_oldcurpm
- #define PL_reg_curpm PL_reg_state.re_state_reg_curpm
- #define PL_reg_oldsaved PL_reg_state.re_state_reg_oldsaved
- #define PL_reg_oldsavedlen PL_reg_state.re_state_reg_oldsavedlen
- #define PL_reg_maxiter PL_reg_state.re_state_reg_maxiter
- #define PL_reg_leftiter PL_reg_state.re_state_reg_leftiter
- #define PL_reg_poscache PL_reg_state.re_state_reg_poscache
- #define PL_reg_poscache_size PL_reg_state.re_state_reg_poscache_size
- #define PL_regsize PL_reg_state.re_state_regsize
- #define PL_reg_starttry PL_reg_state.re_state_reg_starttry
- #define PL_nrs PL_reg_state.re_state_nrs
-
- struct re_save_state {
- U32 re_state_reg_flags; /* from regexec.c */
- U32 re_state_reg_start_tmpl; /* from regexec.c */
- I32 re_state_reg_eval_set; /* from regexec.c */
- bool re_state_reg_match_utf8; /* from regexec.c */
- char *re_state_bostr;
- char *re_state_reginput; /* String-input pointer. */
- char *re_state_regeol; /* End of input, for $ check. */
- regexp_paren_pair *re_state_regoffs; /* Pointer to start/end pairs */
- U32 *re_state_reglastparen; /* Similarly for lastparen. */
- U32 *re_state_reglastcloseparen; /* Similarly for lastcloseparen. */
- char **re_state_reg_start_tmp; /* from regexec.c */
- MAGIC *re_state_reg_magic; /* from regexec.c */
- PMOP *re_state_reg_oldcurpm; /* from regexec.c */
- PMOP *re_state_reg_curpm; /* from regexec.c */
- char *re_state_reg_oldsaved; /* old saved substr during match */
- STRLEN re_state_reg_oldsavedlen; /* old length of saved substr during match */
- STRLEN re_state_reg_poscache_size; /* size of pos cache of WHILEM */
- I32 re_state_reg_oldpos; /* from regexec.c */
- I32 re_state_reg_maxiter; /* max wait until caching pos */
- I32 re_state_reg_leftiter; /* wait until caching pos */
- U32 re_state_regsize; /* from regexec.c */
- char *re_state_reg_poscache; /* cache of pos of WHILEM */
- char *re_state_reg_starttry; /* from regexec.c */
- #ifdef PERL_OLD_COPY_ON_WRITE
- SV *re_state_nrs; /* was placeholder: unused since 5.8.0 (5.7.2 patch #12027 for bug ID 20010815.012). Used to save rx->saved_copy */
- #endif
- };
-
- #define SAVESTACK_ALLOC_FOR_RE_SAVE_STATE \
- (1 + ((sizeof(struct re_save_state) - 1) / sizeof(*PL_savestack)))
-
- /*
- * Local variables:
- * c-indentation-style: bsd
- * c-basic-offset: 4
- * indent-tabs-mode: t
- * End:
- *
- * ex: set ts=8 sts=4 sw=4 noet:
- */
-