void dualize(SV* arg, const char* string) {
svtype sv_type;
sv_type = SvTYPE(arg);
switch(sv_type) {
case SVt_IV:
SvUPGRADE(arg, SVt_PVIV);
sv_setpv(arg, string);
SvIOK_on(arg);
break;
case SVt_NV:
SvUPGRADE(arg, SVt_PVNV);
sv_setpv(arg, string);
SvNOK_on(arg);
break;
// how do we do this for blessed refs?
// this doesn't work
case SVt_PVMG:
sv_setpv(arg, string);
break;
default:
DEBUGME(2, "Got svtype of %d", sv_type);
}
}
static void pe_tracevar(pe_watcher *wa, SV *sv, int got) {
/* Adapted from tkGlue.c
We are a "magic" set processor.
So we are (I think) supposed to look at "private" flags
and set the public ones if appropriate.
e.g. "chop" sets SvPOKp as a hint but not SvPOK
presumably other operators set other private bits.
Question are successive "magics" called in correct order?
i.e. if we are tracing a tied variable should we call
some magic list or be careful how we insert ourselves in the list?
*/
pe_ioevent *ev;
if (SvPOKp(sv)) SvPOK_on(sv);
if (SvNOKp(sv)) SvNOK_on(sv);
if (SvIOKp(sv)) SvIOK_on(sv);
ev = (pe_ioevent*) (*wa->vtbl->new_event)(wa);
++ev->base.hits;
ev->got |= got;
queueEvent((pe_event*) ev);
}
int
ithread_mg_get(pTHX_ SV *sv, MAGIC *mg)
{
ithread *thread = (ithread *) mg->mg_ptr;
SvIVX(sv) = PTR2IV(thread);
SvIOK_on(sv);
return 0;
}
static SV *err_to_SV(pTHX_ int err)
{
SV *ret = sv_newmortal();
SvUPGRADE(ret, SVt_PVNV);
if(err) {
const char *error = gai_strerror(err);
sv_setpv(ret, error);
}
else {
sv_setpv(ret, "");
}
SvIV_set(ret, err); SvIOK_on(ret);
return ret;
}
STATIC char *
S_skipspace(pTHX_ register char *s, int incline)
{
if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) {
while (s < PL_bufend && SPACE_OR_TAB(*s))
s++;
return s;
}
for (;;) {
STRLEN prevlen;
SSize_t oldprevlen, oldoldprevlen;
SSize_t oldloplen = 0, oldunilen = 0;
while (s < PL_bufend && isSPACE(*s)) {
if (*s++ == '\n' && ((incline == 2) || (PL_in_eval && !PL_rsfp && !incline)))
incline(s);
}
/* comment */
if (s < PL_bufend && *s == '#') {
while (s < PL_bufend && *s != '\n')
s++;
if (s < PL_bufend) {
s++;
if (PL_in_eval && !PL_rsfp && !incline) {
incline(s);
continue;
}
}
}
/* also skip leading whitespace on the beginning of a line before deciding
* whether or not to recharge the linestr. --rafl
*/
while (s < PL_bufend && isSPACE(*s)) {
if (*s++ == '\n' && PL_in_eval && !PL_rsfp && !incline)
incline(s);
}
/* only continue to recharge the buffer if we're at the end
* of the buffer, we're not reading from a source filter, and
* we're in normal lexing mode
*/
if (s < PL_bufend || !PL_rsfp || PL_lex_inwhat ||
PL_lex_state == LEX_FORMLINE)
return s;
/* try to recharge the buffer */
if ((s = filter_gets(PL_linestr, PL_rsfp,
(prevlen = SvCUR(PL_linestr)))) == Nullch)
{
/* end of file. Add on the -p or -n magic */
if (PL_minus_p) {
sv_setpv(PL_linestr,
";}continue{print or die qq(-p destination: $!\\n);}");
PL_minus_n = PL_minus_p = 0;
}
else if (PL_minus_n) {
sv_setpvn(PL_linestr, ";}", 2);
PL_minus_n = 0;
}
else
sv_setpvn(PL_linestr,";", 1);
/* reset variables for next time we lex */
PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = s = PL_linestart
= SvPVX(PL_linestr);
PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr);
PL_last_lop = PL_last_uni = Nullch;
/* In perl versions previous to p4-rawid: //depot/perl@32954 -P
* preprocessors were supported here. We don't support -P at all, even
* on perls that support it, and use the following chunk from blead
* perl. (rafl)
*/
/* Close the filehandle. Could be from
* STDIN, or a regular file. If we were reading code from
* STDIN (because the commandline held no -e or filename)
* then we don't close it, we reset it so the code can
* read from STDIN too.
*/
if ((PerlIO*)PL_rsfp == PerlIO_stdin())
PerlIO_clearerr(PL_rsfp);
else
(void)PerlIO_close(PL_rsfp);
PL_rsfp = Nullfp;
return s;
}
/* not at end of file, so we only read another line */
/* make corresponding updates to old pointers, for yyerror() */
oldprevlen = PL_oldbufptr - PL_bufend;
oldoldprevlen = PL_oldoldbufptr - PL_bufend;
if (PL_last_uni)
oldunilen = PL_last_uni - PL_bufend;
if (PL_last_lop)
oldloplen = PL_last_lop - PL_bufend;
PL_linestart = PL_bufptr = s + prevlen;
PL_bufend = s + SvCUR(PL_linestr);
s = PL_bufptr;
PL_oldbufptr = s + oldprevlen;
PL_oldoldbufptr = s + oldoldprevlen;
if (PL_last_uni)
PL_last_uni = s + oldunilen;
if (PL_last_lop)
PL_last_lop = s + oldloplen;
if (!incline)
incline(s);
/* debugger active and we're not compiling the debugger code,
* so store the line into the debugger's array of lines
*/
if (PERLDB_LINE && PL_curstash != PL_debstash) {
AV *fileav = CopFILEAV(PL_curcop);
if (fileav) {
SV * const sv = NEWSV(85,0);
sv_upgrade(sv, SVt_PVMG);
sv_setpvn(sv,PL_bufptr,PL_bufend-PL_bufptr);
(void)SvIOK_on(sv);
SvIV_set(sv, 0);
av_store(fileav,(I32)CopLINE(PL_curcop),sv);
}
}
}
}
