};
#endif
-#ifdef ff_next
-#undef ff_next
-#endif
-
#include "keywords.h"
/* CLINE is a macro that ensures PL_copline has a sane value */
-#ifdef CLINE
-#undef CLINE
-#endif
#define CLINE (PL_copline = (CopLINE(PL_curcop) < PL_copline ? CopLINE(PL_curcop) : PL_copline))
#ifdef PERL_MAD
* PRETERMBLOCK : beginning a non-code-defining {} block (eg, hash ref)
* PREREF : *EXPR where EXPR is not a simple identifier
* TERM : expression term
+ * POSTDEREF : postfix dereference (->$* ->@[...] etc.)
* LOOPX : loop exiting command (goto, last, dump, etc)
* FTST : file test operator
* FUN0 : zero-argument function
#define PRETERMBLOCK(retval) return (PL_expect = XTERMBLOCK,PL_bufptr = s, REPORT(retval))
#define PREREF(retval) return (PL_expect = XREF,PL_bufptr = s, REPORT(retval))
#define TERM(retval) return (CLINE, PL_expect = XOPERATOR, PL_bufptr = s, REPORT(retval))
+#define POSTDEREF(f) return (PL_bufptr = s, S_postderef(aTHX_ REPORT(f),s[1]))
#define LOOPX(f) return (pl_yylval.ival=f, PL_expect=XTERM, PL_bufptr=s, REPORT((int)LOOPEX))
#define FTST(f) return (pl_yylval.ival=f, PL_expect=XTERMORDORDOR, PL_bufptr=s, REPORT((int)UNIOP))
#define FUN0(f) return (pl_yylval.ival=f, PL_expect=XOPERATOR, PL_bufptr=s, REPORT((int)FUNC0))
{ PLUGEXPR, TOKENTYPE_OPVAL, "PLUGEXPR" },
{ PLUGSTMT, TOKENTYPE_OPVAL, "PLUGSTMT" },
{ PMFUNC, TOKENTYPE_OPVAL, "PMFUNC" },
+ { POSTJOIN, TOKENTYPE_NONE, "POSTJOIN" },
{ POSTDEC, TOKENTYPE_NONE, "POSTDEC" },
{ POSTINC, TOKENTYPE_NONE, "POSTINC" },
{ POWOP, TOKENTYPE_OPNUM, "POWOP" },
PERL_ARGS_ASSERT_PRINTBUF;
+ GCC_DIAG_IGNORE(-Wformat-nonliteral); /* fmt checked by caller */
PerlIO_printf(Perl_debug_log, fmt, pv_display(tmp, s, strlen(s), 0, 60));
+ GCC_DIAG_RESTORE;
SvREFCNT_dec(tmp);
}
parser->linestart = SvPVX(parser->linestr);
parser->bufend = parser->bufptr + SvCUR(parser->linestr);
parser->last_lop = parser->last_uni = NULL;
- parser->lex_flags = flags & (LEX_IGNORE_UTF8_HINTS|LEX_EVALBYTES
- |LEX_DONT_CLOSE_RSFP);
+
+ assert(FITS_IN_8_BITS(LEX_IGNORE_UTF8_HINTS|LEX_EVALBYTES
+ |LEX_DONT_CLOSE_RSFP));
+ parser->lex_flags = (U8) (flags & (LEX_IGNORE_UTF8_HINTS|LEX_EVALBYTES
+ |LEX_DONT_CLOSE_RSFP));
parser->in_pod = parser->filtered = 0;
}
#endif
}
+/*
+ * S_postderef
+ *
+ * This subroutine handles postfix deref syntax after the arrow has already
+ * been emitted. @* $* etc. are emitted as two separate token right here.
+ * @[ @{ %[ %{ *{ are emitted also as two tokens, but this function emits
+ * only the first, leaving yylex to find the next.
+ */
+
+static int
+S_postderef(pTHX_ int const funny, char const next)
+{
+ dVAR;
+ assert(funny == DOLSHARP || strchr("$@%&*", funny));
+ assert(strchr("*[{", next));
+ if (next == '*') {
+ PL_expect = XOPERATOR;
+ if (PL_lex_state == LEX_INTERPNORMAL && !PL_lex_brackets) {
+ assert('@' == funny || '$' == funny || DOLSHARP == funny);
+ PL_lex_state = LEX_INTERPEND;
+ start_force(PL_curforce);
+ force_next(POSTJOIN);
+ }
+ start_force(PL_curforce);
+ force_next(next);
+ PL_bufptr+=2;
+ }
+ else {
+ if ('@' == funny && PL_lex_state == LEX_INTERPNORMAL
+ && !PL_lex_brackets)
+ PL_lex_dojoin = 2;
+ PL_expect = XOPERATOR;
+ PL_bufptr++;
+ }
+ return funny;
+}
+
void
Perl_yyunlex(pTHX)
{
char *s;
char *send;
char *d;
- STRLEN len = 0;
SV *pv = sv;
PERL_ARGS_ASSERT_TOKEQ;
- if (!SvLEN(sv))
+ assert (SvPOK(sv));
+ assert (SvLEN(sv));
+ assert (!SvIsCOW(sv));
+ if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1) /* <<'heredoc' */
goto finish;
-
- s = SvPV_force(sv, len);
- if (SvTYPE(sv) >= SVt_PVIV && SvIVX(sv) == -1)
- goto finish;
- send = s + len;
+ s = SvPVX(sv);
+ send = SvEND(sv);
/* This is relying on the SV being "well formed" with a trailing '\0' */
while (s < send && !(*s == '\\' && s[1] == '\\'))
s++;
goto finish;
d = s;
if ( PL_hints & HINT_NEW_STRING ) {
- pv = newSVpvn_flags(SvPVX_const(pv), len, SVs_TEMP | SvUTF8(sv));
+ pv = newSVpvn_flags(SvPVX_const(pv), SvCUR(sv),
+ SVs_TEMP | SvUTF8(sv));
}
while (s < send) {
if (*s == '\\') {
PL_lex_op = NULL;
return THING;
}
- if (op_type == OP_CONST || op_type == OP_READLINE) {
+ if (op_type == OP_CONST) {
SV *sv = tokeq(PL_lex_stuff);
if (SvTYPE(sv) == SVt_PVIV) {
}
pl_yylval.opval = (OP*)newSVOP(op_type, 0, sv);
PL_lex_stuff = NULL;
- /* Allow <FH> // "foo" */
- if (op_type == OP_READLINE)
- PL_expect = XTERMORDORDOR;
- return THING;
- }
- else if (op_type == OP_BACKTICK && PL_lex_op) {
- /* readpipe() was overridden */
- cSVOPx(cLISTOPx(cUNOPx(PL_lex_op)->op_first)->op_first->op_sibling)->op_sv = tokeq(PL_lex_stuff);
- pl_yylval.opval = PL_lex_op;
- PL_lex_op = NULL;
- PL_lex_stuff = NULL;
return THING;
}
ENTER;
PL_lex_state = PL_sublex_info.super_state;
- SAVEBOOL(PL_lex_dojoin);
+ SAVEI8(PL_lex_dojoin);
SAVEI32(PL_lex_brackets);
SAVEI32(PL_lex_allbrackets);
SAVEI32(PL_lex_formbrack);
* validation. */
table = GvHV(PL_hintgv); /* ^H */
cvp = hv_fetchs(table, "charnames", FALSE);
- if (cvp && (cv = *cvp) && SvROK(cv) && ((rv = SvRV(cv)) != NULL)
- && SvTYPE(rv) == SVt_PVCV && ((stash = CvSTASH(rv)) != NULL))
+ if (cvp && (cv = *cvp) && SvROK(cv) && (rv = SvRV(cv),
+ SvTYPE(rv) == SVt_PVCV) && ((stash = CvSTASH(rv)) != NULL))
{
const char * const name = HvNAME(stash);
- if strEQ(name, "_charnames") {
+ if (HvNAMELEN(stash) == sizeof("_charnames")-1
+ && strEQ(name, "_charnames")) {
return res;
}
}
if (PL_lex_inwhat == OP_SUBST && !PL_lex_inpat &&
isDIGIT(*s) && *s != '0' && !isDIGIT(s[1]))
{
+ /* diag_listed_as: \%d better written as $%d */
Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "\\%c better written as $%c", *s, *s);
*--s = '$';
break;
* to recode the rest of the string into utf8 */
/* Here uv is the ordinal of the next character being added */
- if (!NATIVE_IS_INVARIANT(uv)) {
+ if (!UVCHR_IS_INVARIANT(uv)) {
if (!has_utf8 && uv > 255) {
/* Might need to recode whatever we have accumulated so
* far if it contains any chars variant in utf8 or
if (! PL_lex_inpat) {
yyerror("Missing right brace on \\N{}");
} else {
- yyerror("Missing right brace on \\N{} or unescaped left brace after \\N.");
+ yyerror("Missing right brace on \\N{} or unescaped left brace after \\N");
}
continue;
}
default_action:
/* If we started with encoded form, or already know we want it,
then encode the next character */
- if (! NATIVE_IS_INVARIANT((U8)(*s)) && (this_utf8 || has_utf8)) {
+ if (! NATIVE_BYTE_IS_INVARIANT((U8)(*s)) && (this_utf8 || has_utf8)) {
STRLEN len = 1;
* It deals with "$foo[3]" and /$foo[3]/ and /$foo[0123456789$]+/
*
* ->[ and ->{ return TRUE
+ * ->$* ->$#* ->@* ->@[ ->@{ return TRUE if postderef_qq is enabled
* { and [ outside a pattern are always subscripts, so return TRUE
* if we're outside a pattern and it's not { or [, then return FALSE
* if we're in a pattern and the first char is a {
return TRUE;
if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{'))
return TRUE;
+ if (*s == '-' && s[1] == '>'
+ && FEATURE_POSTDEREF_QQ_IS_ENABLED
+ && ( (s[2] == '$' && (s[3] == '*' || (s[3] == '#' && s[4] == '*')))
+ ||(s[2] == '@' && strchr("*[{",s[3])) ))
+ return TRUE;
if (*s != '{' && *s != '[')
return FALSE;
if (!PL_lex_inpat)
weight -= seen[un_char] * 10;
if (isWORDCHAR_lazy_if(s+1,UTF)) {
int len;
- scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE);
+ char *tmp = PL_bufend;
+ PL_bufend = (char*)send;
+ scan_ident(s, tmpbuf, sizeof tmpbuf, FALSE);
+ PL_bufend = tmp;
len = (int)strlen(tmpbuf);
if (len > 1 && gv_fetchpvn_flags(tmpbuf, len,
UTF ? SVf_UTF8 : 0, SVt_PV))
return gv_stashpvn(pkgname, len, UTF ? SVf_UTF8 : 0);
}
-/*
- * S_readpipe_override
- * Check whether readpipe() is overridden, and generates the appropriate
- * optree, provided sublex_start() is called afterwards.
- */
-STATIC void
-S_readpipe_override(pTHX)
-{
- GV **gvp;
- GV *gv_readpipe = gv_fetchpvs("readpipe", GV_NOTQUAL, SVt_PVCV);
- pl_yylval.ival = OP_BACKTICK;
- if ((gv_readpipe
- && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe))
- ||
- ((gvp = (GV**)hv_fetchs(PL_globalstash, "readpipe", FALSE))
- && (gv_readpipe = *gvp) && isGV_with_GP(gv_readpipe)
- && GvCVu(gv_readpipe) && GvIMPORTED_CV(gv_readpipe)))
- {
- COPLINE_SET_FROM_MULTI_END;
- PL_lex_op = (OP*)newUNOP(OP_ENTERSUB, OPf_STACKED,
- op_append_elem(OP_LIST,
- newSVOP(OP_CONST, 0, &PL_sv_undef), /* value will be read later */
- newCVREF(0, newGVOP(OP_GV, 0, gv_readpipe))));
- }
-}
-
#ifdef PERL_MAD
/*
* Perl_madlex
#ifdef DEBUGGING
static const char* const exp_name[] =
{ "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "ATTRBLOCK",
- "ATTRTERM", "TERMBLOCK", "TERMORDORDOR"
+ "ATTRTERM", "TERMBLOCK", "POSTDEREF", "TERMORDORDOR"
};
#endif
(p[0] == 'q' && strchr("qwxr", p[1]))));
}
+static void
+S_check_scalar_slice(pTHX_ char *s)
+{
+ s++;
+ while (*s == ' ' || *s == '\t') s++;
+ if (*s == 'q' && s[1] == 'w'
+ && !isWORDCHAR_lazy_if(s+2,UTF))
+ return;
+ while (*s && (isWORDCHAR_lazy_if(s,UTF) || strchr(" \t$#+-'\"", *s)))
+ s += UTF ? UTF8SKIP(s) : 1;
+ if (*s == '}' || *s == ']')
+ pl_yylval.ival = OPpSLICEWARNING;
+}
+
/*
yylex
*/
-#ifdef __SC__
-#pragma segment Perl_yylex
-#endif
int
Perl_yylex(pTHX)
{
char *d;
STRLEN len;
bool bof = FALSE;
- const bool saw_infix_sigil = PL_parser->saw_infix_sigil;
+ const bool saw_infix_sigil = cBOOL(PL_parser->saw_infix_sigil);
U8 formbrack = 0;
U32 fake_eof = 0;
} );
switch (PL_lex_state) {
-#ifdef COMMENTARY
- case LEX_NORMAL: /* Some compilers will produce faster */
- case LEX_INTERPNORMAL: /* code if we comment these out. */
+ case LEX_NORMAL:
+ case LEX_INTERPNORMAL:
break;
-#endif
/* when we've already built the next token, just pull it out of the queue */
case LEX_KNOWNEXT:
case LEX_INTERPEND:
if (PL_lex_dojoin) {
+ const U8 dojoin_was = PL_lex_dojoin;
PL_lex_dojoin = FALSE;
PL_lex_state = LEX_INTERPCONCAT;
#ifdef PERL_MAD
}
#endif
PL_lex_allbrackets--;
- return REPORT(')');
+ return REPORT(dojoin_was == 1 ? ')' : POSTJOIN);
}
if (PL_lex_inwhat == OP_SUBST && PL_linestr == PL_lex_repl
&& SvEVALED(PL_lex_repl))
DEBUG_T( { printbuf("### Saw unary minus before =>, forcing word %s\n", s); } );
OPERATOR('-'); /* unary minus */
}
- PL_last_uni = PL_oldbufptr;
switch (tmp) {
case 'r': ftst = OP_FTEREAD; break;
case 'w': ftst = OP_FTEWRITE; break;
break;
}
if (ftst) {
+ PL_last_uni = PL_oldbufptr;
PL_last_lop_op = (OPCODE)ftst;
DEBUG_T( { PerlIO_printf(Perl_debug_log,
"### Saw file test %c\n", (int)tmp);
else if (*s == '>') {
s++;
s = SKIPSPACE1(s);
+ if (FEATURE_POSTDEREF_IS_ENABLED && (
+ ((*s == '$' || *s == '&') && s[1] == '*')
+ ||(*s == '$' && s[1] == '#' && s[2] == '*')
+ ||((*s == '@' || *s == '%') && strchr("*[{", s[1]))
+ ||(*s == '*' && (s[1] == '*' || s[1] == '{'))
+ ))
+ {
+ Perl_ck_warner_d(aTHX_
+ packWARN(WARN_EXPERIMENTAL__POSTDEREF),
+ "Postfix dereference is experimental"
+ );
+ PL_expect = XPOSTDEREF;
+ TOKEN(ARROW);
+ }
if (isIDFIRST_lazy_if(s,UTF)) {
s = force_word(s,METHOD,FALSE,TRUE);
TOKEN(ARROW);
}
case '*':
+ if (PL_expect == XPOSTDEREF) POSTDEREF('*');
if (PL_expect != XOPERATOR) {
- s = scan_ident(s, PL_bufend, PL_tokenbuf, sizeof PL_tokenbuf, TRUE);
+ s = scan_ident(s, PL_tokenbuf, sizeof PL_tokenbuf, TRUE);
PL_expect = XOPERATOR;
force_ident(PL_tokenbuf, '*');
if (!*PL_tokenbuf)
Mop(OP_MULTIPLY);
case '%':
+ {
if (PL_expect == XOPERATOR) {
if (s[1] == '=' && !PL_lex_allbrackets &&
PL_lex_fakeeof >= LEX_FAKEEOF_ASSIGN)
PL_parser->saw_infix_sigil = 1;
Mop(OP_MODULO);
}
+ else if (PL_expect == XPOSTDEREF) POSTDEREF('%');
PL_tokenbuf[0] = '%';
- s = scan_ident(s, PL_bufend, PL_tokenbuf + 1,
+ s = scan_ident(s, PL_tokenbuf + 1,
sizeof PL_tokenbuf - 1, FALSE);
+ pl_yylval.ival = 0;
if (!PL_tokenbuf[1]) {
PREREF('%');
}
+ if ((PL_expect != XREF || PL_oldoldbufptr == PL_last_lop) && intuit_more(s)) {
+ if (*s == '[')
+ PL_tokenbuf[0] = '@';
+ }
PL_expect = XOPERATOR;
force_ident_maybe_lex('%');
TERM('%');
-
+ }
case '^':
if (!PL_lex_allbrackets && PL_lex_fakeeof >=
(s[1] == '=' ? LEX_FAKEEOF_ASSIGN : LEX_FAKEEOF_BITWISE))
}
sv = newSVpvn_flags(s, len, UTF ? SVf_UTF8 : 0);
if (*d == '(') {
- d = scan_str(d,TRUE,TRUE,FALSE, FALSE);
+ d = scan_str(d,TRUE,TRUE,FALSE,FALSE,NULL);
COPLINE_SET_FROM_MULTI_END;
if (!d) {
/* MUST advance bufptr here to avoid bogus
TOKEN(0);
s++;
if (PL_lex_brackets <= 0)
+ /* diag_listed_as: Unmatched right %s bracket */
yyerror("Unmatched right square bracket");
else
--PL_lex_brackets;
rightbracket:
s++;
if (PL_lex_brackets <= 0)
+ /* diag_listed_as: Unmatched right %s bracket */
yyerror("Unmatched right curly bracket");
else
PL_expect = (expectation)PL_lex_brackstack[--PL_lex_brackets];
}
TOKEN(';');
case '&':
+ if (PL_expect == XPOSTDEREF) POSTDEREF('&');
s++;
if (*s++ == '&') {
if (!PL_lex_allbrackets && PL_lex_fakeeof >=
}
PL_tokenbuf[0] = '&';
- s = scan_ident(s - 1, PL_bufend, PL_tokenbuf + 1,
+ s = scan_ident(s - 1, PL_tokenbuf + 1,
sizeof PL_tokenbuf - 1, TRUE);
if (PL_tokenbuf[1]) {
PL_expect = XOPERATOR;
return deprecate_commaless_var_list();
}
}
+ else if (PL_expect == XPOSTDEREF) {
+ if (s[1] == '#') {
+ s++;
+ POSTDEREF(DOLSHARP);
+ }
+ POSTDEREF('$');
+ }
if (s[1] == '#' && (isIDFIRST_lazy_if(s+2,UTF) || strchr("{$:+-@", s[2]))) {
PL_tokenbuf[0] = '@';
- s = scan_ident(s + 1, PL_bufend, PL_tokenbuf + 1,
+ s = scan_ident(s + 1, PL_tokenbuf + 1,
sizeof PL_tokenbuf - 1, FALSE);
if (PL_expect == XOPERATOR)
no_op("Array length", s);
}
PL_tokenbuf[0] = '$';
- s = scan_ident(s, PL_bufend, PL_tokenbuf + 1,
+ s = scan_ident(s, PL_tokenbuf + 1,
sizeof PL_tokenbuf - 1, FALSE);
if (PL_expect == XOPERATOR)
no_op("Scalar", s);
case '@':
if (PL_expect == XOPERATOR)
no_op("Array", s);
+ else if (PL_expect == XPOSTDEREF) POSTDEREF('@');
PL_tokenbuf[0] = '@';
- s = scan_ident(s, PL_bufend, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE);
+ s = scan_ident(s, PL_tokenbuf + 1, sizeof PL_tokenbuf - 1, FALSE);
+ pl_yylval.ival = 0;
if (!PL_tokenbuf[1]) {
PREREF('@');
}
/* Warn about @ where they meant $. */
if (*s == '[' || *s == '{') {
if (ckWARN(WARN_SYNTAX)) {
- const char *t = s + 1;
- while (*t && (isWORDCHAR_lazy_if(t,UTF) || strchr(" \t$#+-'\"", *t)))
- t += UTF ? UTF8SKIP(t) : 1;
- if (*t == '}' || *t == ']') {
- t++;
- PL_bufptr = PEEKSPACE(PL_bufptr); /* XXX can realloc */
- /* diag_listed_as: Scalar value @%s[%s] better written as $%s[%s] */
- Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
- "Scalar value %"UTF8f" better written as $%"UTF8f,
- UTF8fARG(UTF, t-PL_bufptr, PL_bufptr),
- UTF8fARG(UTF, t-PL_bufptr-1, PL_bufptr+1));
- }
+ S_check_scalar_slice(aTHX_ s);
}
}
}
TERM(THING);
case '\'':
- s = scan_str(s,!!PL_madskills,FALSE,FALSE, FALSE);
+ s = scan_str(s,!!PL_madskills,FALSE,FALSE,FALSE,NULL);
COPLINE_SET_FROM_MULTI_END;
DEBUG_T( { printbuf("### Saw string before %s\n", s); } );
if (PL_expect == XOPERATOR) {
TERM(sublex_start());
case '"':
- s = scan_str(s,!!PL_madskills,FALSE,FALSE, FALSE);
+ s = scan_str(s,!!PL_madskills,FALSE,FALSE,FALSE,NULL);
DEBUG_T( {
if (s)
printbuf("### Saw string before %s\n", s);
TERM(sublex_start());
case '`':
- s = scan_str(s,!!PL_madskills,FALSE,FALSE, FALSE);
+ s = scan_str(s,!!PL_madskills,FALSE,FALSE,FALSE,NULL);
DEBUG_T( { printbuf("### Saw backtick string before %s\n", s); } );
if (PL_expect == XOPERATOR)
no_op("Backticks",s);
if (!s)
missingterm(NULL);
- readpipe_override();
+ pl_yylval.ival = OP_BACKTICK;
TERM(sublex_start());
case '\\':
s++;
- if (PL_lex_inwhat && isDIGIT(*s))
+ if (PL_lex_inwhat == OP_SUBST && PL_lex_repl == PL_linestr
+ && isDIGIT(*s))
Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX),"Can't use \\%c to mean $%c in expression",
*s, *s);
if (PL_expect == XOPERATOR)
anydelim = word_takes_any_delimeter(PL_tokenbuf, len);
/* x::* is just a word, unless x is "CORE" */
- if (!anydelim && *s == ':' && s[1] == ':' && strNE(PL_tokenbuf, "CORE"))
+ if (!anydelim && *s == ':' && s[1] == ':') {
+ if (strEQ(PL_tokenbuf, "CORE")) goto case_KEY_CORE;
goto just_a_word;
+ }
d = s;
while (d < PL_bufend && isSPACE(*d))
if (PL_expect != XOPERATOR && (*s != ':' || s[1] != ':')) {
CV *cv;
if ((gv = gv_fetchpvn_flags(PL_tokenbuf, len,
- UTF ? SVf_UTF8 : 0, SVt_PVCV)) &&
+ (UTF ? SVf_UTF8 : 0)|GV_NOTQUAL,
+ SVt_PVCV)) &&
(cv = GvCVu(gv)))
{
if (GvIMPORTED_CV(gv))
}
if (!ogv &&
(gvp = (GV**)hv_fetch(PL_globalstash, PL_tokenbuf,
- UTF ? -(I32)len : (I32)len, FALSE)) &&
- (gv = *gvp) && isGV_with_GP(gv) &&
- GvCVu(gv) && GvIMPORTED_CV(gv))
+ len, FALSE)) &&
+ (gv = *gvp) && (
+ isGV_with_GP(gv)
+ ? GvCVu(gv) && GvIMPORTED_CV(gv)
+ : SvPCS_IMPORTED(gv)
+ && (gv_init(gv, PL_globalstash, PL_tokenbuf,
+ len, 0), 1)
+ ))
{
ogv = gv;
}
}
gv = NULL;
gvp = 0;
- if (hgv && tmp != KEY_x && tmp != KEY_CORE) /* never ambiguous */
+ if (hgv && tmp != KEY_x) /* never ambiguous */
Perl_ck_warner(aTHX_ packWARN(WARN_AMBIGUOUS),
"Ambiguous call resolved as CORE::%s(), "
"qualify as such or use &",
pl_yylval.opval = newUNOP(OP_RV2AV, OPf_PARENS,
pl_yylval.opval);
else {
- pl_yylval.opval->op_private = OPpCONST_FOLDED;
+ pl_yylval.opval->op_private = 0;
pl_yylval.opval->op_folded = 1;
pl_yylval.opval->op_flags |= OPf_SPECIAL;
}
while (isLOWER(*d))
d++;
if (!*d && !gv_stashpv(PL_tokenbuf, UTF ? SVf_UTF8 : 0))
+ {
+ /* PL_warn_reserved is constant */
+ GCC_DIAG_IGNORE(-Wformat-nonliteral);
Perl_warner(aTHX_ packWARN(WARN_RESERVED), PL_warn_reserved,
PL_tokenbuf);
+ GCC_DIAG_RESTORE;
+ }
}
}
}
}
goto just_a_word;
- case KEY_CORE:
- if (*s == ':' && s[1] == ':') {
+ case_KEY_CORE:
+ {
STRLEN olen = len;
d = s;
s += 2;
orig_keyword = tmp;
goto reserved_word;
}
- goto just_a_word;
case KEY_abs:
UNI(OP_ABS);
strnEQ(p, "our", 3) && isSPACE(*(p + 3)))
p += 3;
p = PEEKSPACE(p);
+ /* skip optional package name, as in "for my abc $x (..)" */
if (isIDFIRST_lazy_if(p,UTF)) {
- p = scan_ident(p, PL_bufend,
- PL_tokenbuf, sizeof PL_tokenbuf, TRUE);
+ p = scan_word(p, PL_tokenbuf, sizeof PL_tokenbuf, TRUE, &len);
p = PEEKSPACE(p);
}
if (*p != '$')
case KEY_glob:
LOP(
- orig_keyword==KEY_glob ? (orig_keyword=0, -OP_GLOB) : OP_GLOB,
+ orig_keyword==KEY_glob ? -OP_GLOB : OP_GLOB,
XTERM
);
LOP(OP_PIPE_OP,XTERM);
case KEY_q:
- s = scan_str(s,!!PL_madskills,FALSE,FALSE, FALSE);
+ s = scan_str(s,!!PL_madskills,FALSE,FALSE,FALSE,NULL);
COPLINE_SET_FROM_MULTI_END;
if (!s)
missingterm(NULL);
case KEY_qw: {
OP *words = NULL;
- s = scan_str(s,!!PL_madskills,FALSE,FALSE, FALSE);
+ s = scan_str(s,!!PL_madskills,FALSE,FALSE,FALSE,NULL);
COPLINE_SET_FROM_MULTI_END;
if (!s)
missingterm(NULL);
}
case KEY_qq:
- s = scan_str(s,!!PL_madskills,FALSE,FALSE, FALSE);
+ s = scan_str(s,!!PL_madskills,FALSE,FALSE,FALSE,NULL);
if (!s)
missingterm(NULL);
pl_yylval.ival = OP_STRINGIFY;
TERM(sublex_start());
case KEY_qx:
- s = scan_str(s,!!PL_madskills,FALSE,FALSE, FALSE);
+ s = scan_str(s,!!PL_madskills,FALSE,FALSE,FALSE,NULL);
if (!s)
missingterm(NULL);
- readpipe_override();
+ pl_yylval.ival = OP_BACKTICK;
TERM(sublex_start());
case KEY_return:
/* Look for a prototype */
if (*s == '(') {
- s = scan_str(s,!!PL_madskills,FALSE,FALSE, FALSE);
+ s = scan_str(s,!!PL_madskills,FALSE,FALSE,FALSE,NULL);
COPLINE_SET_FROM_MULTI_END;
if (!s)
Perl_croak(aTHX_ "Prototype not terminated");
}
}}
}
-#ifdef __SC__
-#pragma segment Main
-#endif
/*
S_pending_ident
tmp = allocmy(PL_tokenbuf, tokenbuf_len, UTF ? SVf_UTF8 : 0);
}
else {
- if (has_colon)
+ if (has_colon) {
+ /* PL_no_myglob is constant */
+ GCC_DIAG_IGNORE(-Wformat-nonliteral);
yyerror_pv(Perl_form(aTHX_ PL_no_myglob,
PL_in_my == KEY_my ? "my" : "state", PL_tokenbuf),
UTF ? SVf_UTF8 : 0);
+ GCC_DIAG_RESTORE;
+ }
pl_yylval.opval = newOP(OP_PADANY, 0);
pl_yylval.opval->op_targ = allocmy(PL_tokenbuf, tokenbuf_len,
newSVpvs(":full"),
newSVpvs(":short"),
NULL);
- SPAGAIN;
+ assert(sp == PL_stack_sp);
table = GvHV(PL_hintgv);
if (table
&& (PL_hints & HINT_LOCALIZE_HH)
}
STATIC char *
-S_scan_ident(pTHX_ char *s, const char *send, char *dest, STRLEN destlen, I32 ck_uni)
+S_scan_ident(pTHX_ char *s, char *dest, STRLEN destlen, I32 ck_uni)
{
dVAR;
- char *bracket = NULL;
+ I32 herelines = PL_parser->herelines;
+ SSize_t bracket = -1;
char funny = *s++;
char *d = dest;
char * const e = d + destlen - 3; /* two-character token, ending NUL */
bool is_utf8 = cBOOL(UTF);
+ I32 orig_copline = 0, tmp_copline = 0;
PERL_ARGS_ASSERT_SCAN_IDENT;
}
/* Handle the opening { of @{...}, &{...}, *{...}, %{...}, ${...} */
if (*s == '{') {
- bracket = s;
+ bracket = s - SvPVX(PL_linestr);
s++;
- while (s < send && SPACE_OR_TAB(*s))
- s++;
+ orig_copline = CopLINE(PL_curcop);
+ if (s < PL_bufend && isSPACE(*s)) {
+ s = PEEKSPACE(s);
+ }
}
/* Is the byte 'd' a legal single character identifier name? 'u' is true
|| (((U8)(d)) <= 8 && (d) != 0) \
|| (((U8)(d)) == 13)))) \
|| (((U8)(d)) == toCTRL('?')))
- if (s < send
+ if (s < PL_bufend
&& (isIDFIRST_lazy_if(s, is_utf8) || VALID_LEN_ONE_IDENT(*s, is_utf8)))
{
+ if ( isCNTRL_A((U8)*s) ) {
+ deprecate("literal control characters in variable names");
+ }
+
if (is_utf8) {
const STRLEN skip = UTF8SKIP(s);
STRLEN i;
/* Warn about ambiguous code after unary operators if {...} notation isn't
used. There's no difference in ambiguity; it's merely a heuristic
about when not to warn. */
- else if (ck_uni && !bracket)
+ else if (ck_uni && bracket == -1)
check_uni();
- if (bracket) {
+ if (bracket != -1) {
/* If we were processing {...} notation then... */
if (isIDFIRST_lazy_if(d,is_utf8)) {
/* if it starts as a valid identifier, assume that it is one.
d += is_utf8 ? UTF8SKIP(d) : 1;
parse_ident(&s, &d, e, 1, is_utf8);
*d = '\0';
- while (s < send && SPACE_OR_TAB(*s))
- s++;
+ tmp_copline = CopLINE(PL_curcop);
+ if (s < PL_bufend && isSPACE(*s)) {
+ s = PEEKSPACE(s);
+ }
if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) {
/* ${foo[0]} and ${foo{bar}} notation. */
if (ckWARN(WARN_AMBIGUOUS) && keyword(dest, d - dest, 0)) {
const char * const brack =
(const char *)
((*s == '[') ? "[...]" : "{...}");
+ orig_copline = CopLINE(PL_curcop);
+ CopLINE_set(PL_curcop, tmp_copline);
/* diag_listed_as: Ambiguous use of %c{%s[...]} resolved to %c%s[...] */
Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS),
"Ambiguous use of %c{%s%s} resolved to %c%s%s",
funny, dest, brack, funny, dest, brack);
+ CopLINE_set(PL_curcop, orig_copline);
}
bracket++;
PL_lex_brackstack[PL_lex_brackets++] = (char)(XOPERATOR | XFAKEBRACK);
*d = '\0';
}
- while (s < send && SPACE_OR_TAB(*s))
- s++;
-
+ if ( !tmp_copline )
+ tmp_copline = CopLINE(PL_curcop);
+ if (s < PL_bufend && isSPACE(*s)) {
+ s = PEEKSPACE(s);
+ }
+
/* Expect to find a closing } after consuming any trailing whitespace.
*/
if (*s == '}') {
SVs_TEMP | (is_utf8 ? SVf_UTF8 : 0) );
if (funny == '#')
funny = '@';
+ orig_copline = CopLINE(PL_curcop);
+ CopLINE_set(PL_curcop, tmp_copline);
Perl_warner(aTHX_ packWARN(WARN_AMBIGUOUS),
"Ambiguous use of %c{%"SVf"} resolved to %c%"SVf,
funny, tmp, funny, tmp);
+ CopLINE_set(PL_curcop, orig_copline);
}
}
}
else {
/* Didn't find the closing } at the point we expected, so restore
state such that the next thing to process is the opening { and */
- s = bracket; /* let the parser handle it */
+ s = SvPVX(PL_linestr) + bracket; /* let the parser handle it */
+ CopLINE_set(PL_curcop, orig_copline);
+ PL_parser->herelines = herelines;
*dest = '\0';
}
}
yyerror(Perl_form(aTHX_ "Regexp modifiers \"/%c\" and \"/%c\" are mutually exclusive", *charset, c));
}
else if (c == 'a') {
+ /* diag_listed_as: Regexp modifier "/%c" may appear a maximum of twice */
yyerror("Regexp modifier \"/a\" may appear a maximum of twice");
}
else {
PERL_ARGS_ASSERT_SCAN_PAT;
s = scan_str(start,!!PL_madskills,FALSE, (PL_in_eval & EVAL_RE_REPARSING),
- TRUE /* look for escaped bracketed metas */ );
+ TRUE /* look for escaped bracketed metas */, NULL);
if (!s) {
const char * const delimiter = skipspace(start);
#ifdef PERL_MAD
char *modstart;
#endif
+ char *t;
PERL_ARGS_ASSERT_SCAN_SUBST;
pl_yylval.ival = OP_NULL;
s = scan_str(start,!!PL_madskills,FALSE,FALSE,
- TRUE /* look for escaped bracketed metas */ );
+ TRUE /* look for escaped bracketed metas */, &t);
if (!s)
Perl_croak(aTHX_ "Substitution pattern not terminated");
- if (s[-1] == PL_multi_open)
- s--;
+ s = t;
#ifdef PERL_MAD
if (PL_madskills) {
CURMAD('q', PL_thisopen);
first_start = PL_multi_start;
first_line = CopLINE(PL_curcop);
- s = scan_str(s,!!PL_madskills,FALSE,FALSE, FALSE);
+ s = scan_str(s,!!PL_madskills,FALSE,FALSE,FALSE,NULL);
if (!s) {
if (PL_lex_stuff) {
SvREFCNT_dec(PL_lex_stuff);
#ifdef PERL_MAD
char *modstart;
#endif
+ char *t;
PERL_ARGS_ASSERT_SCAN_TRANS;
pl_yylval.ival = OP_NULL;
- s = scan_str(start,!!PL_madskills,FALSE,FALSE, FALSE);
+ s = scan_str(start,!!PL_madskills,FALSE,FALSE,FALSE,&t);
if (!s)
Perl_croak(aTHX_ "Transliteration pattern not terminated");
- if (s[-1] == PL_multi_open)
- s--;
+ s = t;
#ifdef PERL_MAD
if (PL_madskills) {
CURMAD('q', PL_thisopen);
}
#endif
- s = scan_str(s,!!PL_madskills,FALSE,FALSE, FALSE);
+ s = scan_str(s,!!PL_madskills,FALSE,FALSE,FALSE,NULL);
if (!s) {
if (PL_lex_stuff) {
SvREFCNT_dec(PL_lex_stuff);
if (d - PL_tokenbuf != len) {
pl_yylval.ival = OP_GLOB;
- s = scan_str(start,!!PL_madskills,FALSE,FALSE, FALSE);
+ s = scan_str(start,!!PL_madskills,FALSE,FALSE,FALSE,NULL);
if (!s)
Perl_croak(aTHX_ "Glob not terminated");
return s;
else {
bool readline_overriden = FALSE;
GV *gv_readline;
- GV **gvp;
/* we're in a filehandle read situation */
d = PL_tokenbuf;
/* Check whether readline() is overriden */
gv_readline = gv_fetchpvs("readline", GV_NOTQUAL, SVt_PVCV);
- if ((gv_readline
- && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline))
- ||
- ((gvp = (GV**)hv_fetchs(PL_globalstash, "readline", FALSE))
- && (gv_readline = *gvp) && isGV_with_GP(gv_readline)
- && GvCVu(gv_readline) && GvIMPORTED_CV(gv_readline)))
+ if ((gv_readline = gv_override("readline",8)))
readline_overriden = TRUE;
/* if <$fh>, create the ops to turn the variable into a
deprecate_escaped_meta issue a deprecation warning for cer-
tain paired metacharacters that appear
escaped within it
+ delimp if non-null, this is set to the position of
+ the closing delimiter, or just after it if
+ the closing and opening delimiters differ
+ (i.e., the opening delimiter of a substitu-
+ tion replacement)
returns: position to continue reading from buffer
side-effects: multi_start, multi_close, lex_repl or lex_stuff, and
updates the read buffer.
STATIC char *
S_scan_str(pTHX_ char *start, int keep_quoted, int keep_delims, int re_reparse,
- bool deprecate_escaped_meta
+ bool deprecate_escaped_meta, char **delimp
)
{
dVAR;
PL_sublex_info.repl = sv;
else
PL_lex_stuff = sv;
+ if (delimp) *delimp = PL_multi_open == PL_multi_close ? s-termlen : s;
return s;
}
return oldsavestack_ix;
}
-#ifdef __SC__
-#pragma segment Perl_yylex
-#endif
static int
S_yywarn(pTHX_ const char *const s, U32 flags)
{
PL_in_my_stash = NULL;
return 0;
}
-#ifdef __SC__
-#pragma segment Main
-#endif
STATIC char*
S_swallow_bom(pTHX_ U8 *s)
/* Append native character for the rev point */
tmpend = uvchr_to_utf8(tmpbuf, rev);
sv_catpvn(sv, (const char*)tmpbuf, tmpend - tmpbuf);
- if (!NATIVE_IS_INVARIANT(rev))
+ if (!UVCHR_IS_INVARIANT(rev))
SvUTF8_on(sv);
if (pos + 1 < e && *pos == '.' && isDIGIT(pos[1]))
s = ++pos;
https://perl5.git.perl.org / perl5.git / blobdiff