/* sv.h
*
- * Copyright (c) 1991-1994, Larry Wall
+ * Copyright (c) 1991-1997, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
#define SVpfm_COMPILED 0x80000000
#define SVpbm_VALID 0x80000000
-#define SVpbm_CASEFOLD 0x40000000
-#define SVpbm_TAIL 0x20000000
+#define SVpbm_TAIL 0x40000000
-#define SVpgv_MULTI 0x80000000
-
-#define SVpcv_CLONE 0x80000000 /* anon CV uses external lexicals */
-#define SVpcv_CLONED 0x40000000 /* a clone of one of those */
-#define SVpcv_ANON 0x20000000 /* CvGV() can't be trusted */
-
-#ifdef OVERLOAD
-#define SVpgv_AM 0x40000000
-/* #define SVpgv_badAM 0x20000000 */
-#endif /* OVERLOAD */
+#define SVphv_SHAREKEYS 0x20000000 /* keys live on shared string table */
+#define SVphv_LAZYDEL 0x40000000 /* entry in xhv_eiter must be deleted */
struct xrv {
SV * xrv_rv; /* pointer to another SV */
IV xiv_iv; /* integer value or pv offset */
};
+struct xpvuv {
+ char * xpv_pv; /* pointer to malloced string */
+ STRLEN xpv_cur; /* length of xpv_pv as a C string */
+ STRLEN xpv_len; /* allocated size */
+ UV xuv_uv; /* unsigned value or pv offset */
+};
+
struct xpvnv {
char * xpv_pv; /* pointer to malloced string */
STRLEN xpv_cur; /* length of xpv_pv as a C string */
char* xgv_name;
STRLEN xgv_namelen;
HV* xgv_stash;
+ U8 xgv_flags;
};
struct xpvbm {
U8 xbm_rare; /* rarest character in string */
};
+/* This structure much match XPVCV */
+
struct xpvfm {
char * xpv_pv; /* pointer to malloced string */
STRLEN xpv_cur; /* length of xpv_pv as a C string */
long xcv_depth; /* >= 2 indicates recursive call */
AV * xcv_padlist;
CV * xcv_outside;
+ U8 xcv_flags;
+
I32 xfm_lines;
};
MAGIC* xmg_magic; /* linked list of magicalness */
HV* xmg_stash; /* class package */
- FILE * xio_ifp; /* ifp and ofp are normally the same */
- FILE * xio_ofp; /* but sockets need separate streams */
+ PerlIO * xio_ifp; /* ifp and ofp are normally the same */
+ PerlIO * xio_ofp; /* but sockets need separate streams */
DIR * xio_dirp; /* for opendir, readdir, etc */
long xio_lines; /* $. */
long xio_page; /* $% */
#define IOf_START 2 /* check for null ARGV and substitute '-' */
#define IOf_FLUSH 4 /* this fp wants a flush after write op */
#define IOf_DIDTOP 8 /* just did top of form */
+#define IOf_UNTAINT 16 /* consider this fp (and it's data) "safe" */
/* The following macros define implementation-independent predicates on SVs. */
#define SvIOK_on(sv) (SvOOK_off(sv), \
SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
#define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK))
-#define SvIOK_only(sv) (SvOK_off(sv), \
+#define SvIOK_only(sv) (SvOOK_off(sv), SvOK_off(sv), \
SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
#define SvNOK(sv) (SvFLAGS(sv) & SVf_NOK)
#define SvTAIL_on(sv) (SvFLAGS(sv) |= SVpbm_TAIL)
#define SvTAIL_off(sv) (SvFLAGS(sv) &= ~SVpbm_TAIL)
-#define SvCASEFOLD(sv) (SvFLAGS(sv) & SVpbm_CASEFOLD)
-#define SvCASEFOLD_on(sv) (SvFLAGS(sv) |= SVpbm_CASEFOLD)
-#define SvCASEFOLD_off(sv) (SvFLAGS(sv) &= ~SVpbm_CASEFOLD)
-
#define SvVALID(sv) (SvFLAGS(sv) & SVpbm_VALID)
#define SvVALID_on(sv) (SvFLAGS(sv) |= SVpbm_VALID)
#define SvVALID_off(sv) (SvFLAGS(sv) &= ~SVpbm_VALID)
-#define SvMULTI(sv) (SvFLAGS(sv) & SVpgv_MULTI)
-#define SvMULTI_on(sv) (SvFLAGS(sv) |= SVpgv_MULTI)
-#define SvMULTI_off(sv) (SvFLAGS(sv) &= ~SVpgv_MULTI)
-
#define SvRV(sv) ((XRV*) SvANY(sv))->xrv_rv
#define SvRVx(sv) SvRV(sv)
#define SvIVX(sv) ((XPVIV*) SvANY(sv))->xiv_iv
#define SvIVXx(sv) SvIVX(sv)
+#define SvUVX(sv) ((XPVUV*) SvANY(sv))->xuv_uv
+#define SvUVXx(sv) SvUVX(sv)
#define SvNVX(sv) ((XPVNV*)SvANY(sv))->xnv_nv
#define SvNVXx(sv) SvNVX(sv)
#define SvPVX(sv) ((XPV*) SvANY(sv))->xpv_pv
#define SvSTASH(sv) ((XPVMG*) SvANY(sv))->xmg_stash
#define SvIV_set(sv, val) \
- do { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
- (((XPVIV*) SvANY(sv))->xiv_iv = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
+ (((XPVIV*) SvANY(sv))->xiv_iv = val); } STMT_END
#define SvNV_set(sv, val) \
- do { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \
- (((XPVNV*) SvANY(sv))->xnv_nv = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \
+ (((XPVNV*) SvANY(sv))->xnv_nv = val); } STMT_END
#define SvPV_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_pv = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_pv = val); } STMT_END
#define SvCUR_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_cur = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_cur = val); } STMT_END
#define SvLEN_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_len = val); } while (0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_len = val); } STMT_END
#define SvEND_set(sv, val) \
- do { assert(SvTYPE(sv) >= SVt_PV); \
- (((XPV*) SvANY(sv))->xpv_cur = val - SvPVX(sv)); } while (0)
+ STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
+ (((XPV*) SvANY(sv))->xpv_cur = val - SvPVX(sv)); } STMT_END
#define BmRARE(sv) ((XPVBM*) SvANY(sv))->xbm_rare
#define BmUSEFUL(sv) ((XPVBM*) SvANY(sv))->xbm_useful
#define IoTYPE(sv) ((XPVIO*) SvANY(sv))->xio_type
#define IoFLAGS(sv) ((XPVIO*) SvANY(sv))->xio_flags
-#define SvTAINT(sv) if (tainting && tainted) sv_magic(sv, Nullsv, 't', Nullch, 0)
+#define SvTAINTED(sv) (SvMAGICAL(sv) && sv_tainted(sv))
+#define SvTAINTED_on(sv) STMT_START{ if(tainting){sv_taint(sv);} }STMT_END
+#define SvTAINTED_off(sv) STMT_START{ if(tainting){sv_untaint(sv);} }STMT_END
+
+#define SvTAINT(sv) STMT_START{ if(tainted){SvTAINTED_on(sv);} }STMT_END
#ifdef CRIPPLED_CC
IV SvIV _((SV* sv));
+UV SvUV _((SV* sv));
double SvNV _((SV* sv));
#define SvPV_force(sv, lp) sv_pvn_force(sv, &lp)
#define SvPV(sv, lp) sv_pvn(sv, &lp)
I32 SvTRUE _((SV *));
#define SvIVx(sv) SvIV(sv)
+#define SvUVx(sv) SvUV(sv)
#define SvNVx(sv) SvNV(sv)
#define SvPVx(sv, lp) sv_pvn(sv, &lp)
#define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp)
#else /* !CRIPPLED_CC */
+#undef SvIV
#define SvIV(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))
+#undef SvUV
+#define SvUV(sv) (SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv))
+
+#undef SvNV
#define SvNV(sv) (SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv))
-#define SvPV(sv, lp) (SvPOK(sv) ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp))
+#undef SvPV
+#define SvPV(sv, lp) \
+ (SvPOK(sv) ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp))
-#define SvPV_force(sv, lp) ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp))
+#undef SvPV_force
+#define SvPV_force(sv, lp) \
+ ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK \
+ ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp))
+#undef SvTRUE
#define SvTRUE(sv) ( \
!sv \
? 0 \
: sv_2bool(sv) )
#define SvIVx(sv) ((Sv = (sv)), SvIV(Sv))
+#define SvUVx(sv) ((Sv = (sv)), SvUV(Sv))
#define SvNVx(sv) ((Sv = (sv)), SvNV(Sv))
#define SvPVx(sv, lp) ((Sv = (sv)), SvPV(Sv, lp))
#define SvTRUEx(sv) ((Sv = (sv)), SvTRUE(Sv))
#endif /* CRIPPLED_CC */
+#define newRV_inc(sv) newRV(sv)
+#ifdef CRIPPLED_CC
+SV *newRV_noinc _((SV *));
+#else
+#define newRV_noinc(sv) ((Sv = newRV(sv)), --SvREFCNT(SvRV(Sv)), Sv)
+#endif
+
/* the following macro updates any magic values this sv is associated with */
#define SvSETMAGIC(x) if (SvSMAGICAL(x)) mg_set(x)
-#define SvSetSV(dst,src) if (dst != src) sv_setsv(dst,src)
+#define SvSetSV_and(dst,src,finally) \
+ if ((dst) != (src)) { \
+ sv_setsv(dst, src); \
+ finally; \
+ }
+#define SvSetSV_nosteal_and(dst,src,finally) \
+ if ((dst) != (src)) { \
+ U32 tMpF = SvFLAGS(src) & SVs_TEMP; \
+ SvTEMP_off(src); \
+ sv_setsv(dst, src); \
+ SvFLAGS(src) |= tMpF; \
+ finally; \
+ }
+
+#define SvSetSV(dst,src) \
+ SvSetSV_and(dst,src,/*nothing*/;)
+#define SvSetSV_nosteal(dst,src) \
+ SvSetSV_nosteal_and(dst,src,/*nothing*/;)
+
+#define SvSetMagicSV(dst,src) \
+ SvSetSV_and(dst,src,SvSETMAGIC(dst))
+#define SvSetMagicSV_nosteal(dst,src) \
+ SvSetSV_nosteal_and(dst,src,SvSETMAGIC(dst))
#define SvPEEK(sv) sv_peek(sv)
+#define SvIMMORTAL(sv) ((sv)==&sv_undef || (sv)==&sv_yes || (sv)==&sv_no)
+
+#define boolSV(b) ((b) ? &sv_yes : &sv_no)
+
#define isGV(sv) (SvTYPE(sv) == SVt_PVGV)
#ifndef DOSISH
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