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920dae64 AT |
1 | /* mg.h |
2 | * | |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, | |
4 | * 2000, 2002, by Larry Wall and others | |
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 | * | |
9 | */ | |
10 | ||
11 | #ifdef STRUCT_MGVTBL_DEFINITION | |
12 | STRUCT_MGVTBL_DEFINITION; | |
13 | #else | |
14 | struct mgvtbl { | |
15 | int (CPERLscope(*svt_get)) (pTHX_ SV *sv, MAGIC* mg); | |
16 | int (CPERLscope(*svt_set)) (pTHX_ SV *sv, MAGIC* mg); | |
17 | U32 (CPERLscope(*svt_len)) (pTHX_ SV *sv, MAGIC* mg); | |
18 | int (CPERLscope(*svt_clear))(pTHX_ SV *sv, MAGIC* mg); | |
19 | int (CPERLscope(*svt_free)) (pTHX_ SV *sv, MAGIC* mg); | |
20 | int (CPERLscope(*svt_copy)) (pTHX_ SV *sv, MAGIC* mg, | |
21 | SV *nsv, const char *name, int namlen); | |
22 | int (CPERLscope(*svt_dup)) (pTHX_ MAGIC *mg, CLONE_PARAMS *param); | |
23 | }; | |
24 | #endif | |
25 | ||
26 | struct magic { | |
27 | MAGIC* mg_moremagic; | |
28 | MGVTBL* mg_virtual; /* pointer to magic functions */ | |
29 | U16 mg_private; | |
30 | char mg_type; | |
31 | U8 mg_flags; | |
32 | SV* mg_obj; | |
33 | char* mg_ptr; | |
34 | I32 mg_len; | |
35 | }; | |
36 | ||
37 | #define MGf_TAINTEDDIR 1 /* PERL_MAGIC_envelem only */ | |
38 | #define MGf_MINMATCH 1 /* PERL_MAGIC_regex_global only */ | |
39 | #define MGf_REFCOUNTED 2 | |
40 | #define MGf_GSKIP 4 | |
41 | #define MGf_COPY 8 | |
42 | #define MGf_DUP 16 | |
43 | ||
44 | #define MgTAINTEDDIR(mg) (mg->mg_flags & MGf_TAINTEDDIR) | |
45 | #define MgTAINTEDDIR_on(mg) (mg->mg_flags |= MGf_TAINTEDDIR) | |
46 | #define MgTAINTEDDIR_off(mg) (mg->mg_flags &= ~MGf_TAINTEDDIR) | |
47 | ||
48 | #define MgPV(mg,lp) ((((int)(lp = (mg)->mg_len)) == HEf_SVKEY) ? \ | |
49 | SvPV((SV*)((mg)->mg_ptr),lp) : \ | |
50 | (mg)->mg_ptr) | |
51 | #define MgPV_const(mg,lp) ((((int)(lp = (mg)->mg_len)) == HEf_SVKEY) ? \ | |
52 | SvPV_const((SV*)((mg)->mg_ptr),lp) : \ | |
53 | (const char*)(mg)->mg_ptr) | |
54 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ | |
55 | SvPV_nolen_const((SV*)((mg)->mg_ptr)) : \ | |
56 | (const char*)(mg)->mg_ptr) | |
57 | ||
58 | #define SvTIED_mg(sv,how) \ | |
59 | (SvRMAGICAL(sv) ? mg_find((sv),(how)) : Null(MAGIC*)) | |
60 | #define SvTIED_obj(sv,mg) \ | |
61 | ((mg)->mg_obj ? (mg)->mg_obj : sv_2mortal(newRV(sv))) |