static char ident_too_long[] = "Identifier too long";
-static void restore_rsfp(pTHXo_ void *f);
+static void restore_rsfp(pTHX_ void *f);
#ifndef PERL_NO_UTF16_FILTER
-static I32 utf16_textfilter(pTHXo_ int idx, SV *sv, int maxlen);
-static I32 utf16rev_textfilter(pTHXo_ int idx, SV *sv, int maxlen);
+static I32 utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen);
+static I32 utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen);
#endif
#define XFAKEBRACK 128
#define XENUMMASK 127
-#ifdef EBCDIC
-/* For now 'use utf8' does not affect tokenizer on EBCDIC */
-#define UTF (PL_linestr && DO_UTF8(PL_linestr))
+#ifdef USE_UTF8_SCRIPTS
+# define UTF (!IN_BYTES)
#else
-#define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8))
+# ifdef EBCDIC /* For now 'use utf8' does not affect tokenizer on EBCDIC */
+# define UTF (PL_linestr && DO_UTF8(PL_linestr))
+# else
+# define UTF ((PL_linestr && DO_UTF8(PL_linestr)) || (PL_hints & HINT_UTF8))
+# endif
#endif
-/* In variables name $^X, these are the legal values for X.
+/* In variables named $^X, these are the legal values for X.
* 1999-02-27 mjd-perl-patch@plover.com */
#define isCONTROLVAR(x) (isUPPER(x) || strchr("[\\]^_?", (x)))
/* grandfather return to old style */
#define OLDLOP(f) return(yylval.ival=f,PL_expect = XTERM,PL_bufptr = s,(int)LSTOP)
+#ifdef DEBUGGING
+
STATIC void
S_tokereport(pTHX_ char *thing, char* s, I32 rv)
{
- SV *report;
DEBUG_T({
- report = newSVpv(thing, 0);
+ SV* report = newSVpv(thing, 0);
Perl_sv_catpvf(aTHX_ report, ":line %d:%"IVdf":", CopLINE(PL_curcop),
(IV)rv);
sv_catpv(report, PL_tokenbuf);
}
PerlIO_printf(Perl_debug_log, "### %s\n", SvPV_nolen(report));
- })
+ });
}
+#endif
+
/*
* S_ao
*
PL_oldoldbufptr = PL_oldbufptr = PL_bufptr = PL_linestart = SvPVX(PL_linestr);
PL_bufend = PL_bufptr + SvCUR(PL_linestr);
PL_last_lop = PL_last_uni = Nullch;
- SvREFCNT_dec(PL_rs);
- PL_rs = newSVpvn("\n", 1);
PL_rsfp = 0;
}
for (;;) {
STRLEN prevlen;
SSize_t oldprevlen, oldoldprevlen;
- SSize_t oldloplen, oldunilen;
+ SSize_t oldloplen = 0, oldunilen = 0;
while (s < PL_bufend && isSPACE(*s)) {
if (*s++ == '\n' && PL_in_eval && !PL_rsfp)
incline(s);
/*
* S_force_version
* Forces the next token to be a version number.
+ * If the next token appears to be an invalid version number, (e.g. "v2b"),
+ * and if "guessing" is TRUE, then no new token is created (and the caller
+ * must use an alternative parsing method).
*/
STATIC char *
-S_force_version(pTHX_ char *s)
+S_force_version(pTHX_ char *s, int guessing)
{
OP *version = Nullop;
char *d;
if (*d == 'v')
d++;
if (isDIGIT(*d)) {
- for (; isDIGIT(*d) || *d == '_' || *d == '.'; d++);
+ while (isDIGIT(*d) || *d == '_' || *d == '.')
+ d++;
if (*d == ';' || isSPACE(*d) || *d == '}' || !*d) {
SV *ver;
s = scan_num(s, &yylval);
SvNOK_on(ver); /* hint that it is a version */
}
}
+ else if (guessing)
+ return s;
}
/* NOTE: The parser sees the package name and the VERSION swapped */
PL_nextval[PL_nexttoke].opval = version;
force_next(WORD);
- return (s);
+ return s;
}
/*
SAVEI32(PL_lex_inwhat);
SAVECOPLINE(PL_curcop);
SAVEPPTR(PL_bufptr);
+ SAVEPPTR(PL_bufend);
SAVEPPTR(PL_oldbufptr);
SAVEPPTR(PL_oldoldbufptr);
SAVEPPTR(PL_last_lop);
char *e = d++;
while (e-- > c)
*(e + 1) = *e;
- *c = UTF_TO_NATIVE(0xff);
+ *c = (char)UTF_TO_NATIVE(0xff);
/* mark the range as done, and continue */
dorange = FALSE;
didrange = TRUE;
Perl_croak(aTHX_ "Ambiguous range in transliteration operator");
}
if (has_utf8) {
- *d++ = UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */
+ *d++ = (char)UTF_TO_NATIVE(0xff); /* use illegal utf8 byte--see pmtrans */
s++;
continue;
}
else if (*s == '$') {
if (!PL_lex_inpat) /* not a regexp, so $ must be var */
break;
- if (s + 1 < send && !strchr("()| \n\t", s[1]))
+ if (s + 1 < send && !strchr("()| \r\n\t", s[1]))
break; /* in regexp, $ might be tail anchor */
}
case '0': case '1': case '2': case '3':
case '4': case '5': case '6': case '7':
{
- STRLEN len = 0; /* disallow underscores */
- uv = (UV)scan_oct(s, 3, &len);
+ I32 flags = 0;
+ STRLEN len = 3;
+ uv = grok_oct(s, &len, &flags, NULL);
s += len;
}
goto NUM_ESCAPE_INSERT;
++s;
if (*s == '{') {
char* e = strchr(s, '}');
+ I32 flags = PERL_SCAN_ALLOW_UNDERSCORES |
+ PERL_SCAN_DISALLOW_PREFIX;
+ STRLEN len;
+
+ ++s;
if (!e) {
yyerror("Missing right brace on \\x{}");
- e = s;
- }
- else {
- STRLEN len = 1; /* allow underscores */
- uv = (UV)scan_hex(s + 1, e - s - 1, &len);
+ continue;
}
+ len = e - s;
+ uv = grok_hex(s, &len, &flags, NULL);
s = e + 1;
}
else {
{
- STRLEN len = 0; /* disallow underscores */
- uv = (UV)scan_hex(s, 2, &len);
+ STRLEN len = 2;
+ I32 flags = PERL_SCAN_DISALLOW_PREFIX;
+ uv = grok_hex(s, &len, &flags, NULL);
s += len;
}
}
*d = '\0';
SvCUR_set(sv, d - SvPVX(sv));
if (SvCUR(sv) >= SvLEN(sv))
- Perl_croak(aTHX_ "panic:constant overflowed allocated space");
+ Perl_croak(aTHX_ "panic: constant overflowed allocated space");
SvPOK_on(sv);
if (has_utf8) {
/* Call function. The function is expected to */
/* call "FILTER_READ(idx+1, buf_sv)" first. */
/* Return: <0:error, =0:eof, >0:not eof */
- return (*funcp)(aTHXo_ idx, buf_sv, maxlen);
+ return (*funcp)(aTHX_ idx, buf_sv, maxlen);
}
STATIC char *
bool bof = FALSE;
/* check if there's an identifier for us to look at */
- if (PL_pending_ident) {
- /* pit holds the identifier we read and pending_ident is reset */
- char pit = PL_pending_ident;
- PL_pending_ident = 0;
-
- DEBUG_T({ PerlIO_printf(Perl_debug_log,
- "### Tokener saw identifier '%s'\n", PL_tokenbuf); })
-
- /* if we're in a my(), we can't allow dynamics here.
- $foo'bar has already been turned into $foo::bar, so
- just check for colons.
-
- if it's a legal name, the OP is a PADANY.
- */
- if (PL_in_my) {
- if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */
- if (strchr(PL_tokenbuf,':'))
- yyerror(Perl_form(aTHX_ "No package name allowed for "
- "variable %s in \"our\"",
- PL_tokenbuf));
- tmp = pad_allocmy(PL_tokenbuf);
- }
- else {
- if (strchr(PL_tokenbuf,':'))
- yyerror(Perl_form(aTHX_ PL_no_myglob,PL_tokenbuf));
-
- yylval.opval = newOP(OP_PADANY, 0);
- yylval.opval->op_targ = pad_allocmy(PL_tokenbuf);
- return PRIVATEREF;
- }
- }
-
- /*
- build the ops for accesses to a my() variable.
-
- Deny my($a) or my($b) in a sort block, *if* $a or $b is
- then used in a comparison. This catches most, but not
- all cases. For instance, it catches
- sort { my($a); $a <=> $b }
- but not
- sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; }
- (although why you'd do that is anyone's guess).
- */
-
- if (!strchr(PL_tokenbuf,':')) {
-#ifdef USE_THREADS
- /* Check for single character per-thread SVs */
- if (PL_tokenbuf[0] == '$' && PL_tokenbuf[2] == '\0'
- && !isALPHA(PL_tokenbuf[1]) /* Rule out obvious non-threadsvs */
- && (tmp = find_threadsv(&PL_tokenbuf[1])) != NOT_IN_PAD)
- {
- yylval.opval = newOP(OP_THREADSV, 0);
- yylval.opval->op_targ = tmp;
- return PRIVATEREF;
- }
-#endif /* USE_THREADS */
- if ((tmp = pad_findmy(PL_tokenbuf)) != NOT_IN_PAD) {
- SV *namesv = AvARRAY(PL_comppad_name)[tmp];
- /* might be an "our" variable" */
- if (SvFLAGS(namesv) & SVpad_OUR) {
- /* build ops for a bareword */
- SV *sym = newSVpv(HvNAME(GvSTASH(namesv)),0);
- sv_catpvn(sym, "::", 2);
- sv_catpv(sym, PL_tokenbuf+1);
- yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym);
- yylval.opval->op_private = OPpCONST_ENTERED;
- gv_fetchpv(SvPVX(sym),
- (PL_in_eval
- ? (GV_ADDMULTI | GV_ADDINEVAL)
- : TRUE
- ),
- ((PL_tokenbuf[0] == '$') ? SVt_PV
- : (PL_tokenbuf[0] == '@') ? SVt_PVAV
- : SVt_PVHV));
- return WORD;
- }
-
- /* if it's a sort block and they're naming $a or $b */
- if (PL_last_lop_op == OP_SORT &&
- PL_tokenbuf[0] == '$' &&
- (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b')
- && !PL_tokenbuf[2])
- {
- for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart;
- d < PL_bufend && *d != '\n';
- d++)
- {
- if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) {
- Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison",
- PL_tokenbuf);
- }
- }
- }
-
- yylval.opval = newOP(OP_PADANY, 0);
- yylval.opval->op_targ = tmp;
- return PRIVATEREF;
- }
- }
-
- /*
- Whine if they've said @foo in a doublequoted string,
- and @foo isn't a variable we can find in the symbol
- table.
- */
- if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) {
- GV *gv = gv_fetchpv(PL_tokenbuf+1, FALSE, SVt_PVAV);
- if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv)))
- && ckWARN(WARN_AMBIGUOUS))
- {
- /* Downgraded from fatal to warning 20000522 mjd */
- Perl_warner(aTHX_ WARN_AMBIGUOUS,
- "Possible unintended interpolation of %s in string",
- PL_tokenbuf);
- }
- }
-
- /* build ops for a bareword */
- yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf+1, 0));
- yylval.opval->op_private = OPpCONST_ENTERED;
- gv_fetchpv(PL_tokenbuf+1, PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : TRUE,
- ((PL_tokenbuf[0] == '$') ? SVt_PV
- : (PL_tokenbuf[0] == '@') ? SVt_PVAV
- : SVt_PVHV));
- return WORD;
- }
+ if (PL_pending_ident)
+ return S_pending_ident(aTHX);
/* no identifier pending identification */
}
DEBUG_T({ PerlIO_printf(Perl_debug_log,
"### Next token after '%s' was known, type %"IVdf"\n", PL_bufptr,
- (IV)PL_nexttype[PL_nexttoke]); })
+ (IV)PL_nexttype[PL_nexttoke]); });
return(PL_nexttype[PL_nexttoke]);
}
else {
DEBUG_T({ PerlIO_printf(Perl_debug_log,
- "### Saw case modifier at '%s'\n", PL_bufptr); })
+ "### Saw case modifier at '%s'\n", PL_bufptr); });
s = PL_bufptr + 1;
if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3))
tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */
if (PL_bufptr == PL_bufend)
return sublex_done();
DEBUG_T({ PerlIO_printf(Perl_debug_log,
- "### Interpolated variable at '%s'\n", PL_bufptr); })
+ "### Interpolated variable at '%s'\n", PL_bufptr); });
PL_expect = XTERM;
PL_lex_dojoin = (*PL_bufptr == '@');
PL_lex_state = LEX_INTERPNORMAL;
if (PL_lex_dojoin) {
PL_nextval[PL_nexttoke].ival = 0;
force_next(',');
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
PL_nextval[PL_nexttoke].opval = newOP(OP_THREADSV, 0);
PL_nextval[PL_nexttoke].opval->op_targ = find_threadsv("\"");
force_next(PRIVATEREF);
#else
force_ident("\"", '$');
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
PL_nextval[PL_nexttoke].ival = 0;
force_next('$');
PL_nextval[PL_nexttoke].ival = 0;
DEBUG_T( {
PerlIO_printf(Perl_debug_log, "### Tokener expecting %s at %s\n",
exp_name[PL_expect], s);
- } )
+ } );
retry:
switch (*s) {
yyerror("Missing right curly or square bracket");
DEBUG_T( { PerlIO_printf(Perl_debug_log,
"### Tokener got EOF\n");
- } )
+ } );
TOKEN(0);
}
if (s++ < PL_bufend)
if (PL_minus_l)
sv_catpv(PL_linestr,"chomp;");
if (PL_minus_a) {
- GV* gv = gv_fetchpv("::F", TRUE, SVt_PVAV);
- if (gv)
- GvIMPORTED_AV_on(gv);
if (PL_minus_F) {
if (strchr("/'\"", *PL_splitstr)
&& strchr(PL_splitstr + 1, *PL_splitstr))
s = "'~#\200\1'"; /* surely one char is unused...*/
while (s[1] && strchr(PL_splitstr, *s)) s++;
delim = *s;
- Perl_sv_catpvf(aTHX_ PL_linestr, "@F=split(%s%c",
+ Perl_sv_catpvf(aTHX_ PL_linestr, "our @F=split(%s%c",
"q" + (delim == '\''), delim);
for (s = PL_splitstr; *s; s++) {
if (*s == '\\')
}
}
else
- sv_catpv(PL_linestr,"@F=split(' ');");
+ sv_catpv(PL_linestr,"our @F=split(' ');");
}
}
sv_catpv(PL_linestr, "\n");
s++;
if (s < d)
s++;
+ else if (s > d) /* Found by Ilya: feed random input to Perl. */
+ Perl_croak(aTHX_ "panic: input overflow");
incline(s);
if (PL_lex_formbrack && PL_lex_brackets <= PL_lex_formbrack) {
PL_bufptr = s;
s = force_word(PL_bufptr,WORD,FALSE,FALSE,FALSE);
DEBUG_T( { PerlIO_printf(Perl_debug_log,
"### Saw unary minus before =>, forcing word '%s'\n", s);
- } )
+ } );
OPERATOR('-'); /* unary minus */
}
PL_last_uni = PL_oldbufptr;
PL_last_lop_op = ftst;
DEBUG_T( { PerlIO_printf(Perl_debug_log,
"### Saw file test %c\n", (int)ftst);
- } )
+ } );
FTST(ftst);
}
else {
DEBUG_T( { PerlIO_printf(Perl_debug_log,
"### %c looked like a file test but was not\n",
(int)ftst);
- } )
+ } );
s -= 2;
}
}
else if (!PL_in_my && len == 6 && strnEQ(s, "method", len))
CvMETHOD_on(PL_compcv);
#ifdef USE_ITHREADS
- else if (PL_in_my == KEY_our && len == 6 && strnEQ(s, "shared", len))
- GvSHARED_on(cGVOPx_gv(yylval.opval));
+ else if (PL_in_my == KEY_our && len == 6 && strnEQ(s, "unique", len))
+ GvUNIQUE_on(cGVOPx_gv(yylval.opval));
#endif
/* After we've set the flags, it could be argued that
we don't need to do the attributes.pm-based setting
else
PL_lex_brackstack[PL_lex_brackets++] = XOPERATOR;
s = skipspace(s);
- if (*s == '}')
+ if (*s == '}') {
+ if (PL_expect == XREF && PL_lex_state == LEX_INTERPNORMAL) {
+ PL_expect = XTERM;
+ /* This hack is to get the ${} in the message. */
+ PL_bufptr = s+1;
+ yyerror("syntax error");
+ break;
+ }
OPERATOR(HASHBRACK);
+ }
/* This hack serves to disambiguate a pair of curlies
* as being a block or an anon hash. Normally, expectation
* determines that, but in cases where we're not in a
s = scan_num(s, &yylval);
DEBUG_T( { PerlIO_printf(Perl_debug_log,
"### Saw number in '%s'\n", s);
- } )
+ } );
if (PL_expect == XOPERATOR)
no_op("Number",s);
TERM(THING);
s = scan_str(s,FALSE,FALSE);
DEBUG_T( { PerlIO_printf(Perl_debug_log,
"### Saw string before '%s'\n", s);
- } )
+ } );
if (PL_expect == XOPERATOR) {
if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) {
PL_expect = XTERM;
s = scan_str(s,FALSE,FALSE);
DEBUG_T( { PerlIO_printf(Perl_debug_log,
"### Saw string before '%s'\n", s);
- } )
+ } );
if (PL_expect == XOPERATOR) {
if (PL_lex_formbrack && PL_lex_brackets == PL_lex_formbrack) {
PL_expect = XTERM;
s = scan_str(s,FALSE,FALSE);
DEBUG_T( { PerlIO_printf(Perl_debug_log,
"### Saw backtick string before '%s'\n", s);
- } )
+ } );
if (PL_expect == XOPERATOR)
no_op("Backticks",s);
if (!s)
TERM(THING);
}
/* avoid v123abc() or $h{v1}, allow C<print v10;> */
- else if (!isALPHA(*start) && (PL_expect == XTERM || PL_expect == XREF)) {
+ else if (!isALPHA(*start) && (PL_expect == XTERM || PL_expect == XREF || PL_expect == XSTATE)) {
char c = *start;
GV *gv;
*start = '\0';
CLINE;
yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf,0));
yylval.opval->op_private = OPpCONST_BARE;
- if (UTF && !IN_BYTE && is_utf8_string((U8*)PL_tokenbuf, len))
+ if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len))
SvUTF8_on(((SVOP*)yylval.opval)->op_sv);
TERM(WORD);
}
default: /* not a keyword */
just_a_word: {
SV *sv;
+ int pkgname = 0;
char lastchar = (PL_bufptr == PL_oldoldbufptr ? 0 : PL_bufptr[-1]);
/* Get the rest if it looks like a package qualifier */
Perl_croak(aTHX_ "Bad name after %s%s", PL_tokenbuf,
*s == '\'' ? "'" : "::");
len += morelen;
+ pkgname = 1;
}
if (PL_expect == XOPERATOR) {
}
}
-
PL_expect = XOPERATOR;
s = skipspace(s);
/* Is this a word before a => operator? */
- if (*s == '=' && s[1] == '>') {
+ if (*s == '=' && s[1] == '>' && !pkgname) {
CLINE;
sv_setpv(((SVOP*)yylval.opval)->op_sv, PL_tokenbuf);
- if (UTF && !IN_BYTE && is_utf8_string((U8*)PL_tokenbuf, len))
+ if (UTF && !IN_BYTES && is_utf8_string((U8*)PL_tokenbuf, len))
SvUTF8_on(((SVOP*)yylval.opval)->op_sv);
TERM(WORD);
}
if (ckWARN(WARN_RESERVED)) {
if (lastchar != '-') {
for (d = PL_tokenbuf; *d && isLOWER(*d); d++) ;
- if (!*d)
+ if (!*d && strNE(PL_tokenbuf,"main"))
Perl_warner(aTHX_ WARN_RESERVED, PL_warn_reserved,
PL_tokenbuf);
}
loc = PerlIO_tell(PL_rsfp);
(void)PerlIO_seek(PL_rsfp, 0L, 0);
}
+#ifdef NETWARE
+ if (PerlLIO_setmode(PL_rsfp, O_TEXT) != -1) {
+#else
if (PerlLIO_setmode(PerlIO_fileno(PL_rsfp), O_TEXT) != -1) {
+#endif /* NETWARE */
#ifdef PERLIO_IS_STDIO /* really? */
# if defined(__BORLANDC__)
/* XXX see note in do_binmode() */
}
#endif
#ifdef PERLIO_LAYERS
- if (UTF && !IN_BYTE)
+ if (UTF && !IN_BYTES)
PerlIO_apply_layers(aTHX_ PL_rsfp, NULL, ":utf8");
#endif
PL_rsfp = Nullfp;
LOP(OP_CRYPT,XTERM);
case KEY_chmod:
- if (ckWARN(WARN_CHMOD)) {
- for (d = s; d < PL_bufend && (isSPACE(*d) || *d == '('); d++) ;
- if (*d != '0' && isDIGIT(*d))
- Perl_warner(aTHX_ WARN_CHMOD,
- "chmod() mode argument is missing initial 0");
- }
LOP(OP_CHMOD,XTERM);
case KEY_chown:
if (*s == '{')
PRETERMBLOCK(DO);
if (*s != '\'')
- s = force_word(s,WORD,FALSE,TRUE,FALSE);
+ s = force_word(s,WORD,TRUE,TRUE,FALSE);
OPERATOR(DO);
case KEY_die:
if (PL_expect != XSTATE)
yyerror("\"no\" not allowed in expression");
s = force_word(s,WORD,FALSE,TRUE,FALSE);
- s = force_version(s);
+ s = force_version(s, FALSE);
yylval.ival = 0;
OPERATOR(USE);
case KEY_require:
s = skipspace(s);
- if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) {
- s = force_version(s);
+ if (isDIGIT(*s)) {
+ s = force_version(s, FALSE);
}
- else {
+ else if (*s != 'v' || !isDIGIT(s[1])
+ || (s = force_version(s, TRUE), *s == 'v'))
+ {
*PL_tokenbuf = '\0';
s = force_word(s,WORD,TRUE,TRUE,FALSE);
if (isIDFIRST_lazy_if(PL_tokenbuf,UTF))
really_sub:
{
char tmpbuf[sizeof PL_tokenbuf];
- SSize_t tboffset;
+ SSize_t tboffset = 0;
expectation attrful;
bool have_name, have_proto;
int key = tmp;
LOP(OP_UTIME,XTERM);
case KEY_umask:
- if (ckWARN(WARN_UMASK)) {
- for (d = s; d < PL_bufend && (isSPACE(*d) || *d == '('); d++) ;
- if (*d != '0' && isDIGIT(*d))
- Perl_warner(aTHX_ WARN_UMASK,
- "umask: argument is missing initial 0");
- }
UNI(OP_UMASK);
case KEY_unshift:
yyerror("\"use\" not allowed in expression");
s = skipspace(s);
if (isDIGIT(*s) || (*s == 'v' && isDIGIT(s[1]))) {
- s = force_version(s);
+ s = force_version(s, TRUE);
if (*s == ';' || (s = skipspace(s), *s == ';')) {
PL_nextval[PL_nexttoke].opval = Nullop;
force_next(WORD);
}
+ else if (*s == 'v') {
+ s = force_word(s,WORD,FALSE,TRUE,FALSE);
+ s = force_version(s, FALSE);
+ }
}
else {
s = force_word(s,WORD,FALSE,TRUE,FALSE);
- s = force_version(s);
+ s = force_version(s, FALSE);
}
yylval.ival = 1;
OPERATOR(USE);
#pragma segment Main
#endif
+static int
+S_pending_ident(pTHX)
+{
+ register char *d;
+ register I32 tmp;
+ /* pit holds the identifier we read and pending_ident is reset */
+ char pit = PL_pending_ident;
+ PL_pending_ident = 0;
+
+ DEBUG_T({ PerlIO_printf(Perl_debug_log,
+ "### Tokener saw identifier '%s'\n", PL_tokenbuf); });
+
+ /* if we're in a my(), we can't allow dynamics here.
+ $foo'bar has already been turned into $foo::bar, so
+ just check for colons.
+
+ if it's a legal name, the OP is a PADANY.
+ */
+ if (PL_in_my) {
+ if (PL_in_my == KEY_our) { /* "our" is merely analogous to "my" */
+ if (strchr(PL_tokenbuf,':'))
+ yyerror(Perl_form(aTHX_ "No package name allowed for "
+ "variable %s in \"our\"",
+ PL_tokenbuf));
+ tmp = pad_allocmy(PL_tokenbuf);
+ }
+ else {
+ if (strchr(PL_tokenbuf,':'))
+ yyerror(Perl_form(aTHX_ PL_no_myglob,PL_tokenbuf));
+
+ yylval.opval = newOP(OP_PADANY, 0);
+ yylval.opval->op_targ = pad_allocmy(PL_tokenbuf);
+ return PRIVATEREF;
+ }
+ }
+
+ /*
+ build the ops for accesses to a my() variable.
+
+ Deny my($a) or my($b) in a sort block, *if* $a or $b is
+ then used in a comparison. This catches most, but not
+ all cases. For instance, it catches
+ sort { my($a); $a <=> $b }
+ but not
+ sort { my($a); $a < $b ? -1 : $a == $b ? 0 : 1; }
+ (although why you'd do that is anyone's guess).
+ */
+
+ if (!strchr(PL_tokenbuf,':')) {
+#ifdef USE_5005THREADS
+ /* Check for single character per-thread SVs */
+ if (PL_tokenbuf[0] == '$' && PL_tokenbuf[2] == '\0'
+ && !isALPHA(PL_tokenbuf[1]) /* Rule out obvious non-threadsvs */
+ && (tmp = find_threadsv(&PL_tokenbuf[1])) != NOT_IN_PAD)
+ {
+ yylval.opval = newOP(OP_THREADSV, 0);
+ yylval.opval->op_targ = tmp;
+ return PRIVATEREF;
+ }
+#endif /* USE_5005THREADS */
+ if ((tmp = pad_findmy(PL_tokenbuf)) != NOT_IN_PAD) {
+ SV *namesv = AvARRAY(PL_comppad_name)[tmp];
+ /* might be an "our" variable" */
+ if (SvFLAGS(namesv) & SVpad_OUR) {
+ /* build ops for a bareword */
+ SV *sym = newSVpv(HvNAME(GvSTASH(namesv)),0);
+ sv_catpvn(sym, "::", 2);
+ sv_catpv(sym, PL_tokenbuf+1);
+ yylval.opval = (OP*)newSVOP(OP_CONST, 0, sym);
+ yylval.opval->op_private = OPpCONST_ENTERED;
+ gv_fetchpv(SvPVX(sym),
+ (PL_in_eval
+ ? (GV_ADDMULTI | GV_ADDINEVAL)
+ : TRUE
+ ),
+ ((PL_tokenbuf[0] == '$') ? SVt_PV
+ : (PL_tokenbuf[0] == '@') ? SVt_PVAV
+ : SVt_PVHV));
+ return WORD;
+ }
+
+ /* if it's a sort block and they're naming $a or $b */
+ if (PL_last_lop_op == OP_SORT &&
+ PL_tokenbuf[0] == '$' &&
+ (PL_tokenbuf[1] == 'a' || PL_tokenbuf[1] == 'b')
+ && !PL_tokenbuf[2])
+ {
+ for (d = PL_in_eval ? PL_oldoldbufptr : PL_linestart;
+ d < PL_bufend && *d != '\n';
+ d++)
+ {
+ if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) {
+ Perl_croak(aTHX_ "Can't use \"my %s\" in sort comparison",
+ PL_tokenbuf);
+ }
+ }
+ }
+
+ yylval.opval = newOP(OP_PADANY, 0);
+ yylval.opval->op_targ = tmp;
+ return PRIVATEREF;
+ }
+ }
+
+ /*
+ Whine if they've said @foo in a doublequoted string,
+ and @foo isn't a variable we can find in the symbol
+ table.
+ */
+ if (pit == '@' && PL_lex_state != LEX_NORMAL && !PL_lex_brackets) {
+ GV *gv = gv_fetchpv(PL_tokenbuf+1, FALSE, SVt_PVAV);
+ if ((!gv || ((PL_tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv)))
+ && ckWARN(WARN_AMBIGUOUS))
+ {
+ /* Downgraded from fatal to warning 20000522 mjd */
+ Perl_warner(aTHX_ WARN_AMBIGUOUS,
+ "Possible unintended interpolation of %s in string",
+ PL_tokenbuf);
+ }
+ }
+
+ /* build ops for a bareword */
+ yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(PL_tokenbuf+1, 0));
+ yylval.opval->op_private = OPpCONST_ENTERED;
+ gv_fetchpv(PL_tokenbuf+1, PL_in_eval ? (GV_ADDMULTI | GV_ADDINEVAL) : TRUE,
+ ((PL_tokenbuf[0] == '$') ? SVt_PV
+ : (PL_tokenbuf[0] == '@') ? SVt_PVAV
+ : SVt_PVHV));
+ return WORD;
+}
+
I32
Perl_keyword(pTHX_ register char *d, I32 len)
{
if (strEQ(d,"rindex")) return -KEY_rindex;
break;
case 7:
- if (strEQ(d,"require")) return -KEY_require;
+ if (strEQ(d,"require")) return KEY_require;
if (strEQ(d,"reverse")) return -KEY_reverse;
if (strEQ(d,"readdir")) return -KEY_readdir;
break;
Renew(SvPVX(tmpstr), SvLEN(tmpstr), char);
}
SvREFCNT_dec(herewas);
- if (UTF && !IN_BYTE && is_utf8_string((U8*)SvPVX(tmpstr), SvCUR(tmpstr)))
+ if (UTF && !IN_BYTES && is_utf8_string((U8*)SvPVX(tmpstr), SvCUR(tmpstr)))
SvUTF8_on(tmpstr);
PL_lex_stuff = tmpstr;
yylval.ival = op_type;
Read a number in any of the formats that Perl accepts:
- 0(x[0-7A-F]+)|([0-7]+)|(b[01])
- \d([\d_]*\d)?(\.\d([\d_]*\d)?)?[Ee](\d+)
-
- Underbars (_) are allowed in decimal numbers. If -w is on,
- underbars must not be consecutive, and they cannot start
- or end integer or fractional parts.
+ \d(_?\d)*(\.(\d(_?\d)*)?)?[Ee][\+\-]?(\d(_?\d)*) 12 12.34 12.
+ \.\d(_?\d)*[Ee][\+\-]?(\d(_?\d)*) .34
+ 0b[01](_?[01])*
+ 0[0-7](_?[0-7])*
+ 0x[0-9A-Fa-f](_?[0-9A-Fa-f])*
Like most scan_ routines, it uses the PL_tokenbuf buffer to hold the
thing it reads.
}
/* read exponent part, if present */
- if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) {
+ if (*s && strchr("eE",*s) && strchr("+-0123456789_", s[1])) {
floatit = TRUE;
s++;
/* regardless of whether user said 3E5 or 3e5, use lower 'e' */
*d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */
+ /* stray preinitial _ */
+ if (*s == '_') {
+ if (ckWARN(WARN_SYNTAX))
+ Perl_warner(aTHX_ WARN_SYNTAX,
+ "Misplaced _ in number");
+ lastub = s++;
+ }
+
/* allow positive or negative exponent */
if (*s == '+' || *s == '-')
*d++ = *s++;
- /* read digits of exponent (no underbars :-) */
- while (isDIGIT(*s)) {
- if (d >= e)
- Perl_croak(aTHX_ number_too_long);
- *d++ = *s++;
+ /* stray initial _ */
+ if (*s == '_') {
+ if (ckWARN(WARN_SYNTAX))
+ Perl_warner(aTHX_ WARN_SYNTAX,
+ "Misplaced _ in number");
+ lastub = s++;
+ }
+
+ /* read digits of exponent */
+ while (isDIGIT(*s) || *s == '_') {
+ if (isDIGIT(*s)) {
+ if (d >= e)
+ Perl_croak(aTHX_ number_too_long);
+ *d++ = *s++;
+ }
+ else {
+ if (ckWARN(WARN_SYNTAX) &&
+ ((lastub && s == lastub + 1) ||
+ (!isDIGIT(s[1]) && s[1] != '_')))
+ Perl_warner(aTHX_ WARN_SYNTAX,
+ "Misplaced _ in number");
+ lastub = s++;
+ }
}
}
- /* terminate the string */
- *d = '\0';
/* make an sv from the string */
sv = NEWSV(92,0);
-#if defined(Strtol) && defined(Strtoul)
-
/*
- strtol/strtoll sets errno to ERANGE if the number is too big
- for an integer. We try to do an integer conversion first
- if no characters indicating "float" have been found.
+ We try to do an integer conversion first if no characters
+ indicating "float" have been found.
*/
if (!floatit) {
- IV iv;
UV uv;
- errno = 0;
- if (*PL_tokenbuf == '-')
- iv = Strtol(PL_tokenbuf, (char**)NULL, 10);
- else
- uv = Strtoul(PL_tokenbuf, (char**)NULL, 10);
- if (errno)
- floatit = TRUE; /* Probably just too large. */
- else if (*PL_tokenbuf == '-')
- sv_setiv(sv, iv);
- else if (uv <= IV_MAX)
+ int flags = grok_number (PL_tokenbuf, d - PL_tokenbuf, &uv);
+
+ if (flags == IS_NUMBER_IN_UV) {
+ if (uv <= IV_MAX)
sv_setiv(sv, uv); /* Prefer IVs over UVs. */
- else
+ else
sv_setuv(sv, uv);
- }
+ } else if (flags == (IS_NUMBER_IN_UV | IS_NUMBER_NEG)) {
+ if (uv <= (UV) IV_MIN)
+ sv_setiv(sv, -(IV)uv);
+ else
+ floatit = TRUE;
+ } else
+ floatit = TRUE;
+ }
if (floatit) {
+ /* terminate the string */
+ *d = '\0';
nv = Atof(PL_tokenbuf);
sv_setnv(sv, nv);
}
-#else
- /*
- No working strtou?ll?.
-
- Unfortunately atol() doesn't do range checks (returning
- LONG_MIN/LONG_MAX, and setting errno to ERANGE on overflows)
- everywhere [1], so we cannot use use atol() (or atoll()).
- If we could, they would be used, as Atol(), very much like
- Strtol() and Strtoul() are used above.
-
- [1] XXX Configure test needed to check for atol()
- (and atoll()) overflow behaviour XXX
-
- --jhi
-
- We need to do this the hard way. */
- nv = Atof(PL_tokenbuf);
-
- /* See if we can make do with an integer value without loss of
- precision. We use U_V to cast to a UV, because some
- compilers have issues. Then we try casting it back and see
- if it was the same [1]. We only do this if we know we
- specifically read an integer. If floatit is true, then we
- don't need to do the conversion at all.
-
- [1] Note that this is lossy if our NVs cannot preserve our
- UVs. There are metaconfig defines NV_PRESERVES_UV (a boolean)
- and NV_PRESERVES_UV_BITS (a number), but in general we really
- do hope all such potentially lossy platforms have strtou?ll?
- to do a lossless IV/UV conversion.
-
- Maybe could do some tricks with DBL_DIG, LDBL_DIG and
- DBL_MANT_DIG and LDBL_MANT_DIG (these are already available
- as NV_DIG and NV_MANT_DIG)?
-
- --jhi
- */
- {
- UV uv = U_V(nv);
- if (!floatit && (NV)uv == nv) {
- if (uv <= IV_MAX)
- sv_setiv(sv, uv); /* Prefer IVs over UVs. */
- else
- sv_setuv(sv, uv);
- }
- else
- sv_setnv(sv, nv);
- }
-#endif
if ( floatit ? (PL_hints & HINT_NEW_FLOAT) :
(PL_hints & HINT_NEW_INTEGER) )
sv = new_constant(PL_tokenbuf, d - PL_tokenbuf,
if (*t == '@' || *t == '^')
needargs = TRUE;
}
- sv_catpvn(stuff, s, eol-s);
+ if (eol > s) {
+ sv_catpvn(stuff, s, eol-s);
#ifndef PERL_STRICT_CR
- if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') {
- char *end = SvPVX(stuff) + SvCUR(stuff);
- end[-2] = '\n';
- end[-1] = '\0';
- SvCUR(stuff)--;
- }
+ if (eol-s > 1 && eol[-2] == '\r' && eol[-1] == '\n') {
+ char *end = SvPVX(stuff) + SvCUR(stuff);
+ end[-2] = '\n';
+ end[-1] = '\0';
+ SvCUR(stuff)--;
+ }
#endif
+ }
+ else
+ break;
}
s = eol;
if (PL_rsfp) {
PL_min_intro_pending = 0;
PL_padix = 0;
PL_subline = CopLINE(PL_curcop);
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
av_store(PL_comppad_name, 0, newSVpvn("@_", 2));
PL_curpad[0] = (SV*)newAV();
SvPADMY_on(PL_curpad[0]); /* XXX Needed? */
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
comppadlist = newAV();
AvREAL_off(comppadlist);
CvPADLIST(PL_compcv) = comppadlist;
CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc(outsidecv);
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
CvOWNER(PL_compcv) = 0;
New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
MUTEX_INIT(CvMUTEXP(PL_compcv));
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
return oldsavestack_ix;
}
return (char*)s;
}
-#ifdef PERL_OBJECT
-#include "XSUB.h"
-#endif
-
/*
* restore_rsfp
* Restore a source filter.
*/
static void
-restore_rsfp(pTHXo_ void *f)
+restore_rsfp(pTHX_ void *f)
{
PerlIO *fp = (PerlIO*)f;
#ifndef PERL_NO_UTF16_FILTER
static I32
-utf16_textfilter(pTHXo_ int idx, SV *sv, int maxlen)
+utf16_textfilter(pTHX_ int idx, SV *sv, int maxlen)
{
I32 count = FILTER_READ(idx+1, sv, maxlen);
if (count) {
}
static I32
-utf16rev_textfilter(pTHXo_ int idx, SV *sv, int maxlen)
+utf16rev_textfilter(pTHX_ int idx, SV *sv, int maxlen)
{
I32 count = FILTER_READ(idx+1, sv, maxlen);
if (count) {
https://perl5.git.perl.org / perl5.git / blobdiff