Notes on porting the perl runtime PP engine.Importance: 1 = who cares?, 10 = vitalDifficulty: 1 = trivial, 10 = very difficult. Level assumes areasonable implementation of the SV and OP API already ported.OP		Import	Diff	Commentsnull		10	1stub		10	1scalar		10	1pushmark	10	1	PUSHMARKwantarray	7	3	cxstack, dopoptosubconst		10	1	gvsv		10	1	save_scalargv		10	1	gelem		3	3	padsv		10	2	SAVECLEARSV, provide_refpadav		10	2padhv		10	2padany		1	1pushre		7	3	pushes an op. Blech.rv2gv		6	5rv2sv		10	4av2arylen	7	3	sv_magic	rv2cv		8	5	sv_2cvanoncode	7	6	cv_cloneprototype	4	4	sv_2cvrefgen		8	3srefgen		8	2ref		8	3bless		7	3backtick	5	4glob		5	2	do_readlinereadline	8	2	do_readline	rcatline	8	2regcmaybe	8	1regcreset	8	1regcomp		8	9	pregcompmatch		8	10qr		8	1subst		8	10substcont	8	7trans		7	4	do_transsassign		10	3	mg_find, SvSETMAGICaassign		10	5	chop		8	3	do_chopschop		8	3	do_chopchomp		8	3	do_chompschomp		8	3	do_chompdefined		10	2undef		10	3study		4	5pos		8	3	PVLV, mg_findpreinc		10	2	sv_inc, SvSETMAGICi_preincpredec		10	2	sv_dec, SvSETMAGICi_predecpostinc		10	2	sv_dec, SvSETMAGICi_postincpostdec		10	2	sv_dec, SvSETMAGICi_postdecpow		10	1multiply	10	1i_multiply	10	1divide		10	2i_divide	10	1modulo		10	2i_modulo	10	1repeat		6	4add		10	1i_add		10	1subtract	10	1i_subtract	10	1concat		10	2	mg_getstringify	10	2	sv_setpvnleft_shift	10	1right_shift	10	1lt		10	1i_lt		10	1gt		10	1i_gt		10	1le		10	1i_le		10	1ge		10	1i_ge		10	1eq		10	1i_eq		10	1ne		10	1i_ne		10	1ncmp		10	1i_ncmp		10	1slt		10	2sgt		10	2sle		10	2sge		10	2seq		10	2	sv_eqsne		10	2scmp		10	2bit_and		10	2bit_xor		10	2bit_or		10	2negate		10	3i_negate	10	1not		10	1complement	10	3atan2		6	1sin		6	1cos		6	1rand		5	2srand		5	2exp		6	1log		6	2sqrt		6	2int		10	2hex		9	2oct		9	2abs		10	1length		10	1substr		10	4	PVLVvec		5	4index		9	3rindex		9	3sprintf		9	4	do_sprintfformline	6	7ord		6	2	chr		6	2crypt		3	2ucfirst		6	2lcfirst		6	2uc		6	2lc		6	2quotemeta	6	3rv2av		10	3	save_svref, mg_get, save_aryaelemfast	10	2	av_fetchaelem		10	3aslice		9	4each		10	3	hv_iternextvalues		10	3	do_kvkeys		10	3	do_kvdelete		10	3exists		10	3rv2hv		10	3	save_svref, mg_get, save_ary, do_kvhelem		10	3	save_svref, provide_refhslice		9	4unpack		9	6	lengthypack		9	6	lengthysplit		9	9join		10	4	do_joinlist		10	2lslice		9	4anonlist	10	2anonhash	10	3splice		9	6push		10	2pop		10	2shift		10	2unshift		10	2sort		6	7reverse		9	4grepstart	6	5	modifies flow of controlgrepwhile	6	5	modifies flow of controlmapstart	1	1mapwhile	6	5	modifies flow of controlrange		7	3	modifies flow of controlflip		7	4	modifies flow of controlflop		7	4	modifies flow of controland		10	3	modifies flow of controlor		10	3	modifies flow of controlxorcond_expr	10	3	modifies flow of controlandassign	7	3	modifies flow of controlorassign	7	3	modifies flow of controlmethod		8	5entersub	10	7leavesub	10	5leavesublvcaller		2	8warn		9	3die		9	3reset		2	2lineseq		1	1nextstate	10	1	Update stack_sp from cxstack. FREETMPS.dbstate		3	7		unstackenter		10	3	cxstack, ENTER, SAVETMPS, PUSHBLOCKleave		10	3	cxstack, SAVETMPS, LEAVE, POPBLOCKscope		1	1enteriter	9	4	cxstackiter		9	3	cxstackenterloop	10	4leaveloop	10	4return		10	5last		9	6next		9	6redo		9	6dump		1	9	pp_gotogoto		6	9exit		9	2	my_exitopen		9	5	do_openclose		9	3	do_closepipe_op		7	4fileno		9	2umask		4	2binmode		4	2tie		5	5	pp_entersubuntie		5	2	sv_unmagictied		5	2dbmopen		4	5dbmclose	4	2sselect		4	4select		7	3getc		7	2read		8	2	pp_sysreadenterwrite	4	4	doformleavewrite	4	5prtf		4	4	do_sprintfprint		8	6sysopen		8	2sysseek		8	2sysread		8	4syswrite	8	4	pp_sendsend		8	4recv		8	4	pp_sysreadeof		9	2tell		9	3seek		9	2truncate	8	3fcntl		8	4	pp_ioctlioctl		8	4flock		8	2socket		5	3sockpair	5	3bind		5	3connect		5	3listen		5	3accept		5	3shutdown	5	2gsockopt	5	3	pp_ssockoptssockopt	5	3getsockname	5	3	pp_getpeernamegetpeername	5	3lstat		5	4	pp_statstat		5	4	lengthyftrread		5	2	candoftrwrite	5	2	candoftrexec		5	2	candofteread		5	2	candoftewrite	5	2	candofteexec		5	2	candoftis		5	2	candofteowned	5	2	candoftrowned	5	2	candoftzero		5	2	candoftsize		5	2	candoftmtime		5	2	candoftatime		5	2	candoftctime		5	2	candoftsock		5	2	candoftchr		5	2	candoftblk		5	2	candoftfile		5	2	candoftdir		5	2	candoftpipe		5	2	candoftlink		5	2	candoftsuid		5	2	candoftsgid		5	2	candoftsvtx		5	2	candofttty		5	2	candofttext		5	4ftbinary	5	4	fttextchdirchownchrootunlinkchmodutimerenamelinksymlinkreadlinkmkdirrmdiropen_dirreaddirtelldirseekdirrewinddirclosedirforkwaitwaitpidsystemexeckillgetppidgetpgrpsetpgrpgetprioritysetprioritytimetmslocaltimegmtimealarmsleepshmgetshmctlshmreadshmwritemsggetmsgctlmsgsndmsgrcvsemgetsemctlsemoprequire		6	9	doevaldofile		6	9	doevalentereval	6	9	doevalleaveeval	6	5entertry	7	4	modifies flow of controlleavetry	7	3ghbynameghbyaddrghostentgnbynamegnbyaddrgnetentgpbynamegpbynumbergprotoentgsbynamegsbyportgserventshostentsnetentsprotoentsserventehostentenetenteprotoenteserventgpwnamgpwuidgpwentspwentepwentggrnamggrgidggrentsgrentegrentgetloginsyscalllock		6	1threadsv	6	2	unused if not USE_THREADSsetstate	1	1	currently unused anywheremethod_named	10	2