Commit | Line | Data |
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a0d0e21e | 1 | /* mg.h |
79072805 | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, |
1129b882 | 4 | * 2000, 2002, 2005, 2006, 2007, 2008 by Larry Wall and others |
79072805 LW |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
79072805 LW |
9 | */ |
10 | ||
11 | struct mgvtbl { | |
16c91539 BM |
12 | int (*svt_get) (pTHX_ SV *sv, MAGIC* mg); |
13 | int (*svt_set) (pTHX_ SV *sv, MAGIC* mg); | |
14 | U32 (*svt_len) (pTHX_ SV *sv, MAGIC* mg); | |
15 | int (*svt_clear)(pTHX_ SV *sv, MAGIC* mg); | |
16 | int (*svt_free) (pTHX_ SV *sv, MAGIC* mg); | |
17 | int (*svt_copy) (pTHX_ SV *sv, MAGIC* mg, | |
3468c7ea | 18 | SV *nsv, const char *name, I32 namlen); |
16c91539 BM |
19 | int (*svt_dup) (pTHX_ MAGIC *mg, CLONE_PARAMS *param); |
20 | int (*svt_local)(pTHX_ SV *nsv, MAGIC *mg); | |
79072805 LW |
21 | }; |
22 | ||
23 | struct magic { | |
24 | MAGIC* mg_moremagic; | |
92e67595 | 25 | MGVTBL* mg_virtual; /* pointer to magic functions */ |
79072805 LW |
26 | U16 mg_private; |
27 | char mg_type; | |
28 | U8 mg_flags; | |
6174b39a | 29 | SSize_t mg_len; |
79072805 LW |
30 | SV* mg_obj; |
31 | char* mg_ptr; | |
79072805 | 32 | }; |
8990e307 | 33 | |
cb50f42d YST |
34 | #define MGf_TAINTEDDIR 1 /* PERL_MAGIC_envelem only */ |
35 | #define MGf_MINMATCH 1 /* PERL_MAGIC_regex_global only */ | |
aa38f4b1 | 36 | #define MGf_REQUIRE_GV 1 /* PERL_MAGIC_checkcall only */ |
85e6fe83 | 37 | #define MGf_REFCOUNTED 2 |
fd69380d | 38 | #define MGf_GSKIP 4 /* skip further GETs until after next SET */ |
a5063e7c DM |
39 | #define MGf_COPY 8 /* has an svt_copy MGVTBL entry */ |
40 | #define MGf_DUP 0x10 /* has an svt_dup MGVTBL entry */ | |
41 | #define MGf_LOCAL 0x20 /* has an svt_local MGVTBL entry */ | |
25fdce4a | 42 | #define MGf_BYTES 0x40 /* PERL_MAGIC_regex_global only */ |
d39c26a6 | 43 | #define MGf_PERSIST 0x80 /* PERL_MAGIC_lvref only */ |
748a9306 | 44 | |
1e422769 | 45 | #define MgTAINTEDDIR(mg) (mg->mg_flags & MGf_TAINTEDDIR) |
46 | #define MgTAINTEDDIR_on(mg) (mg->mg_flags |= MGf_TAINTEDDIR) | |
47 | #define MgTAINTEDDIR_off(mg) (mg->mg_flags &= ~MGf_TAINTEDDIR) | |
99069129 | 48 | |
32da55ab | 49 | #define MgPV(mg,lp) ((((int)(lp = (mg)->mg_len)) == HEf_SVKEY) ? \ |
b1bc3f34 | 50 | SvPV(MUTABLE_SV((mg)->mg_ptr),lp) : \ |
5aabfad6 | 51 | (mg)->mg_ptr) |
01b8bcb7 | 52 | #define MgPV_const(mg,lp) ((((int)(lp = (mg)->mg_len)) == HEf_SVKEY) ? \ |
b1bc3f34 | 53 | SvPV_const(MUTABLE_SV((mg)->mg_ptr),lp) : \ |
01b8bcb7 | 54 | (const char*)(mg)->mg_ptr) |
b1bc3f34 NC |
55 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
56 | SvPV_nolen_const(MUTABLE_SV((mg)->mg_ptr)) : \ | |
fa28a6c6 | 57 | (const char*)(mg)->mg_ptr) |
33c27489 | 58 | |
4608196e | 59 | #define SvTIED_mg(sv,how) (SvRMAGICAL(sv) ? mg_find((sv),(how)) : NULL) |
33c27489 GS |
60 | #define SvTIED_obj(sv,mg) \ |
61 | ((mg)->mg_obj ? (mg)->mg_obj : sv_2mortal(newRV(sv))) | |
e9a8c099 | 62 | |
25fdce4a FC |
63 | #if defined(PERL_CORE) || defined(PERL_EXT) |
64 | # define MgBYTEPOS(mg,sv,pv,len) S_MgBYTEPOS(aTHX_ mg,sv,pv,len) | |
65 | /* assumes get-magic and stringification have already occurred */ | |
66 | # define MgBYTEPOS_set(mg,sv,pv,off) ( \ | |
67 | assert_((mg)->mg_type == PERL_MAGIC_regex_global) \ | |
68 | SvPOK(sv) && !SvGMAGICAL(sv) \ | |
69 | ? (mg)->mg_len = (off), (mg)->mg_flags |= MGf_BYTES \ | |
70 | : ((mg)->mg_len = DO_UTF8(sv) \ | |
4df947ee FC |
71 | ? (SSize_t)utf8_length((U8 *)(pv), (U8 *)(pv)+(off)) \ |
72 | : (SSize_t)(off), \ | |
25fdce4a FC |
73 | (mg)->mg_flags &= ~MGf_BYTES)) |
74 | #endif | |
75 | ||
84c7b88c BF |
76 | #define whichsig(pv) whichsig_pv(pv) |
77 | ||
e9a8c099 MHM |
78 | /* |
79 | * Local variables: | |
80 | * c-indentation-style: bsd | |
81 | * c-basic-offset: 4 | |
14d04a33 | 82 | * indent-tabs-mode: nil |
e9a8c099 MHM |
83 | * End: |
84 | * | |
14d04a33 | 85 | * ex: set ts=8 sts=4 sw=4 et: |
e9a8c099 | 86 | */ |