static void no_op _((char *what, char *s));
static void set_csh _((void));
static I32 sublex_done _((void));
+static I32 sublex_push _((void));
static I32 sublex_start _((void));
#ifdef CRIPPLED_CC
static int uni _((I32 f, char *s));
static char *linestart; /* beg. of most recently read line */
+static char pending_ident; /* pending identifier lookup */
+
+static struct {
+ I32 super_state; /* lexer state to save */
+ I32 sub_inwhat; /* "lex_inwhat" to use */
+ OP *sub_op; /* "lex_op" to use */
+} sublex_info;
+
/* The following are arranged oddly so that the guard on the switch statement
* can get by with a single comparison (if the compiler is smart enough).
*/
-#define LEX_NORMAL 9
-#define LEX_INTERPNORMAL 8
-#define LEX_INTERPCASEMOD 7
-#define LEX_INTERPSTART 6
-#define LEX_INTERPEND 5
-#define LEX_INTERPENDMAYBE 4
-#define LEX_INTERPCONCAT 3
-#define LEX_INTERPCONST 2
-#define LEX_FORMLINE 1
-#define LEX_KNOWNEXT 0
+#define LEX_NORMAL 10
+#define LEX_INTERPNORMAL 9
+#define LEX_INTERPCASEMOD 8
+#define LEX_INTERPPUSH 7
+#define LEX_INTERPSTART 6
+#define LEX_INTERPEND 5
+#define LEX_INTERPENDMAYBE 4
+#define LEX_INTERPCONCAT 3
+#define LEX_INTERPCONST 2
+#define LEX_FORMLINE 1
+#define LEX_KNOWNEXT 0
#ifdef I_FCNTL
#include <fcntl.h>
}
else if (multi_close < 32 || multi_close == 127) {
*tmpbuf = '^';
- tmpbuf[1] = multi_close ^ 64;
+ tmpbuf[1] = toCTRL(multi_close);
s = "\\n";
tmpbuf[2] = '\0';
s = tmpbuf;
char *s;
STRLEN len;
- SAVEINT(lex_dojoin);
- SAVEINT(lex_brackets);
- SAVEINT(lex_fakebrack);
- SAVEINT(lex_casemods);
- SAVEINT(lex_starts);
- SAVEINT(lex_state);
+ SAVEI32(lex_dojoin);
+ SAVEI32(lex_brackets);
+ SAVEI32(lex_fakebrack);
+ SAVEI32(lex_casemods);
+ SAVEI32(lex_starts);
+ SAVEI32(lex_state);
SAVESPTR(lex_inpat);
- SAVEINT(lex_inwhat);
- SAVEINT(curcop->cop_line);
+ SAVEI32(lex_inwhat);
+ SAVEI16(curcop->cop_line);
SAVEPPTR(bufptr);
SAVEPPTR(bufend);
SAVEPPTR(oldbufptr);
void
lex_end()
{
+ doextract = FALSE;
}
static void
force_next(WORD);
if (kind) {
op->op_private = OPpCONST_ENTERED;
- gv_fetchpv(s, TRUE,
+ /* XXX see note in pp_entereval() for why we forgo typo
+ warnings if the symbol must be introduced in an eval.
+ GSAR 96-10-12 */
+ gv_fetchpv(s, in_eval ? GV_ADDMULTI : TRUE,
kind == '$' ? SVt_PV :
kind == '@' ? SVt_PVAV :
kind == '%' ? SVt_PVHV :
if(isDIGIT(*s)) {
char *d;
int c;
- for( d=s, c = 1; isDIGIT(*d) || (*d == '.' && c--); d++);
+ for( d=s, c = 1; isDIGIT(*d) || *d == '_' || (*d == '.' && c--); d++);
if((*d == ';' || isSPACE(*d)) && *(skipspace(d)) != ',') {
s = scan_num(s);
/* real VERSION number -- GBARR */
return THING;
}
+ sublex_info.super_state = lex_state;
+ sublex_info.sub_inwhat = op_type;
+ sublex_info.sub_op = lex_op;
+ lex_state = LEX_INTERPPUSH;
+
+ expect = XTERM;
+ if (lex_op) {
+ yylval.opval = lex_op;
+ lex_op = Nullop;
+ return PMFUNC;
+ }
+ else
+ return FUNC;
+}
+
+static I32
+sublex_push()
+{
push_scope();
- SAVEINT(lex_dojoin);
- SAVEINT(lex_brackets);
- SAVEINT(lex_fakebrack);
- SAVEINT(lex_casemods);
- SAVEINT(lex_starts);
- SAVEINT(lex_state);
+
+ lex_state = sublex_info.super_state;
+ SAVEI32(lex_dojoin);
+ SAVEI32(lex_brackets);
+ SAVEI32(lex_fakebrack);
+ SAVEI32(lex_casemods);
+ SAVEI32(lex_starts);
+ SAVEI32(lex_state);
SAVESPTR(lex_inpat);
- SAVEINT(lex_inwhat);
- SAVEINT(curcop->cop_line);
+ SAVEI32(lex_inwhat);
+ SAVEI16(curcop->cop_line);
SAVEPPTR(bufptr);
SAVEPPTR(oldbufptr);
SAVEPPTR(oldoldbufptr);
lex_state = LEX_INTERPCONCAT;
curcop->cop_line = multi_start;
- lex_inwhat = op_type;
- if (op_type == OP_MATCH || op_type == OP_SUBST)
- lex_inpat = lex_op;
+ lex_inwhat = sublex_info.sub_inwhat;
+ if (lex_inwhat == OP_MATCH || lex_inwhat == OP_SUBST)
+ lex_inpat = sublex_info.sub_op;
else
- lex_inpat = 0;
+ lex_inpat = Nullop;
- expect = XTERM;
- force_next('(');
- if (lex_op) {
- yylval.opval = lex_op;
- lex_op = Nullop;
- return PMFUNC;
- }
- else
- return FUNC;
+ return '(';
}
static I32
continue;
case 'c':
s++;
- *d = *s++;
- if (isLOWER(*d))
- *d = toUPPER(*d);
- *d++ ^= 64;
+ len = *s++;
+ *d++ = toCTRL(len);
continue;
case 'b':
*d++ = '\b';
if (gv) {
if (GvIO(gv))
return 0;
- if (!GvCV(gv))
+ if (!GvCVu(gv))
gv = 0;
}
s = scan_word(s, tmpbuf, TRUE, &len);
}
if (!keyword(tmpbuf, len)) {
indirgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVCV);
- if (indirgv && GvCV(indirgv))
+ if (indirgv && GvCVu(indirgv))
return 0;
/* filehandle or package name makes it a method */
if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) {
s = skipspace(s);
+ if ((bufend - s) >= 2 && *s == '=' && *(s+1) == '>')
+ return 0; /* no assumptions -- "=>" quotes bearword */
nextval[nexttoke].opval =
(OP*)newSVOP(OP_CONST, 0,
newSVpv(tmpbuf,0));
{
if (rsfp_filters) {
- SvCUR_set(sv, 0); /* start with empty line */
+ if (!append)
+ SvCUR_set(sv, 0); /* start with empty line */
if (FILTER_READ(0, sv, 0) > 0)
return ( SvPVX(sv) ) ;
else
{ "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "TERMBLOCK" };
#endif
-extern int yychar; /* last token */
+EXT int yychar; /* last token */
int
yylex()
register I32 tmp;
STRLEN len;
+ if (pending_ident) {
+ char pit = pending_ident;
+ pending_ident = 0;
+
+ if (in_my) {
+ if (strchr(tokenbuf,':'))
+ croak(no_myglob,tokenbuf);
+ yylval.opval = newOP(OP_PADANY, 0);
+ yylval.opval->op_targ = pad_allocmy(tokenbuf);
+ return PRIVATEREF;
+ }
+
+ if (!strchr(tokenbuf,':') && (tmp = pad_findmy(tokenbuf))) {
+ if (last_lop_op == OP_SORT &&
+ tokenbuf[0] == '$' &&
+ (tokenbuf[1] == 'a' || tokenbuf[1] == 'b')
+ && !tokenbuf[2])
+ {
+ for (d = in_eval ? oldoldbufptr : linestart;
+ d < bufend && *d != '\n';
+ d++)
+ {
+ if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) {
+ croak("Can't use \"my %s\" in sort comparison",
+ tokenbuf);
+ }
+ }
+ }
+
+ yylval.opval = newOP(OP_PADANY, 0);
+ yylval.opval->op_targ = tmp;
+ return PRIVATEREF;
+ }
+
+ /* Force them to make up their mind on "@foo". */
+ if (pit == '@' && lex_state != LEX_NORMAL && !lex_brackets) {
+ GV *gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV);
+ if (!gv || ((tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) {
+ char tmpbuf[1024];
+ sprintf(tmpbuf, "Literal %s now requires backslash", tokenbuf);
+ yyerror(tmpbuf);
+ }
+ }
+
+ yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf+1, 0));
+ yylval.opval->op_private = OPpCONST_ENTERED;
+ gv_fetchpv(tokenbuf+1, in_eval ? GV_ADDMULTI : TRUE,
+ ((tokenbuf[0] == '$') ? SVt_PV
+ : (tokenbuf[0] == '@') ? SVt_PVAV
+ : SVt_PVHV));
+ return WORD;
+ }
+
switch (lex_state) {
#ifdef COMMENTARY
case LEX_NORMAL: /* Some compilers will produce faster */
return yylex();
}
+ case LEX_INTERPPUSH:
+ return sublex_push();
+
case LEX_INTERPSTART:
if (bufptr == bufend)
return sublex_done();
goto fake_eof; /* emulate EOF on ^D or ^Z */
case 0:
if (!rsfp) {
+ last_uni = 0;
+ last_lop = 0;
if (lex_brackets)
yyerror("Missing right bracket");
TOKEN(0);
s++;
if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */
s++;
- if (!in_eval && *s == '#' && s[1] == '!') {
+ d = Nullch;
+ if (!in_eval) {
+ if (*s == '#' && *(s+1) == '!')
+ d = s + 2;
+#ifdef ALTERNATE_SHEBANG
+ else {
+ static char as[] = ALTERNATE_SHEBANG;
+ if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1))
+ d = s + (sizeof(as) - 1);
+ }
+#endif /* ALTERNATE_SHEBANG */
+ }
+ if (d) {
+ /*
+ * HP-UX (at least) sets argv[0] to the script name,
+ * which makes $^X incorrect. And Digital UNIX and Linux,
+ * at least, set argv[0] to the basename of the Perl
+ * interpreter. So, having found "#!", we'll set it right.
+ */
+ SV *x = GvSV(gv_fetchpv("\030", TRUE, SVt_PV));
+ char *ipath;
+ char *ibase;
+
+ while (*d == ' ' || *d == '\t')
+ d++;
+ ipath = d;
+ ibase = Nullch;
+ while (*d && !isSPACE(*d)) {
+ if (*d++ == '/')
+ ibase = d;
+ }
+ assert(SvPOK(x) || SvGMAGICAL(x));
+ if (sv_eq(x, GvSV(curcop->cop_filegv))
+ || (ibase
+ && SvCUR(x) == (d - ibase)
+ && strnEQ(SvPVX(x), ibase, d - ibase)))
+ sv_setpvn(x, ipath, d - ipath);
+ /*
+ * $^X is always tainted, but taintedness must be off
+ * when parsing code, so forget we ever saw it.
+ */
+ TAINT_NOT;
+
+ /*
+ * Look for options.
+ */
d = instr(s,"perl -");
if (!d)
d = instr(s,"perl");
+#ifdef ALTERNATE_SHEBANG
+ /*
+ * If the ALTERNATE_SHEBANG on this system starts with a
+ * character that can be part of a Perl expression, then if
+ * we see it but not "perl", we're probably looking at the
+ * start of Perl code, not a request to hand off to some
+ * other interpreter. Similarly, if "perl" is there, but
+ * not in the first 'word' of the line, we assume the line
+ * contains the start of the Perl program.
+ * This isn't foolproof, but it's generally a good guess.
+ */
+ if (d && *s != '#') {
+ char *c = s;
+ while (*c && !strchr("; \t\r\n\f\v#", *c))
+ c++;
+ if (c < d)
+ d = Nullch; /* "perl" not in first word; ignore */
+ else
+ *s = '#'; /* Don't try to parse shebang line */
+ }
+#endif
if (!d &&
+ *s == '#' &&
!minus_c &&
!instr(s,"indir") &&
instr(origargv[0],"perl"))
Mop(OP_MULTIPLY);
case '%':
- if (expect != XOPERATOR) {
- s = scan_ident(s, bufend, tokenbuf + 1, TRUE);
- if (tokenbuf[1]) {
- expect = XOPERATOR;
- tokenbuf[0] = '%';
- if (in_my) {
- if (strchr(tokenbuf,':'))
- croak(no_myglob,tokenbuf);
- nextval[nexttoke].opval = newOP(OP_PADANY, 0);
- nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
- force_next(PRIVATEREF);
- TERM('%');
- }
- if (!strchr(tokenbuf,':')) {
- if (tmp = pad_findmy(tokenbuf)) {
- nextval[nexttoke].opval = newOP(OP_PADANY, 0);
- nextval[nexttoke].opval->op_targ = tmp;
- force_next(PRIVATEREF);
- TERM('%');
- }
- }
- force_ident(tokenbuf + 1, *tokenbuf);
- }
- else
- PREREF('%');
- TERM('%');
+ if (expect == XOPERATOR) {
+ ++s;
+ Mop(OP_MODULO);
}
- ++s;
- Mop(OP_MODULO);
+ tokenbuf[0] = '%';
+ s = scan_ident(s, bufend, tokenbuf+1, TRUE);
+ if (!tokenbuf[1]) {
+ if (s == bufend)
+ yyerror("Final % should be \\% or %name");
+ PREREF('%');
+ }
+ pending_ident = '%';
+ TERM('%');
case '^':
s++;
case XOPERATOR:
while (s < bufend && (*s == ' ' || *s == '\t'))
s++;
- if (s < bufend && (isALPHA(*s) || *s == '_')) {
- d = scan_word(s, tokenbuf, FALSE, &len);
+ d = s;
+ tokenbuf[0] = '\0';
+ if (d < bufend && *d == '-') {
+ tokenbuf[0] = '-';
+ d++;
+ while (d < bufend && (*d == ' ' || *d == '\t'))
+ d++;
+ }
+ if (d < bufend && isIDFIRST(*d)) {
+ d = scan_word(d, tokenbuf + 1, FALSE, &len);
while (d < bufend && (*d == ' ' || *d == '\t'))
d++;
if (*d == '}') {
+ char minus = (tokenbuf[0] == '-');
if (dowarn &&
- (keyword(tokenbuf, len) ||
- perl_get_cv(tokenbuf, FALSE) ))
+ (keyword(tokenbuf + 1, len) ||
+ (minus && len == 1 && isALPHA(tokenbuf[1])) ||
+ perl_get_cv(tokenbuf + 1, FALSE) ))
warn("Ambiguous use of {%s} resolved to {\"%s\"}",
- tokenbuf, tokenbuf);
- s = force_word(s,WORD,FALSE,TRUE,FALSE);
+ tokenbuf + !minus, tokenbuf + !minus);
+ s = force_word(s + minus, WORD, FALSE, TRUE, FALSE);
+ if (minus)
+ force_next('-');
}
}
/* FALL THROUGH */
bufptr = s;
return yylex(); /* ignore fake brackets */
}
- if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
+ if (*s == '-' && s[1] == '>')
+ lex_state = LEX_INTERPENDMAYBE;
+ else if (*s != '[' && *s != '{')
lex_state = LEX_INTERPEND;
}
}
Rop(OP_GT);
case '$':
- if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) {
- s = scan_ident(s+1, bufend, tokenbuf+1, FALSE);
- if (expect == XOPERATOR) {
- if (lex_formbrack && lex_brackets == lex_formbrack) {
- expect = XTERM;
- depcom();
- return ','; /* grandfather non-comma-format format */
- }
- else
- no_op("Array length",s);
+ CLINE;
+
+ if (expect == XOPERATOR) {
+ if (lex_formbrack && lex_brackets == lex_formbrack) {
+ expect = XTERM;
+ depcom();
+ return ','; /* grandfather non-comma-format format */
}
- else if (!tokenbuf[1])
+ }
+
+ if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) {
+ if (expect == XOPERATOR)
+ no_op("Array length", bufptr);
+ tokenbuf[0] = '@';
+ s = scan_ident(s+1, bufend, tokenbuf+1, FALSE);
+ if (!tokenbuf[1])
PREREF(DOLSHARP);
- if (!strchr(tokenbuf+1,':')) {
- tokenbuf[0] = '@';
- if (tmp = pad_findmy(tokenbuf)) {
- nextval[nexttoke].opval = newOP(OP_PADANY, 0);
- nextval[nexttoke].opval->op_targ = tmp;
- expect = XOPERATOR;
- force_next(PRIVATEREF);
- TOKEN(DOLSHARP);
- }
- }
expect = XOPERATOR;
- force_ident(tokenbuf+1, *tokenbuf);
+ pending_ident = '#';
TOKEN(DOLSHARP);
}
+
+ if (expect == XOPERATOR)
+ no_op("Scalar", bufptr);
+ tokenbuf[0] = '$';
s = scan_ident(s, bufend, tokenbuf+1, FALSE);
- if (expect == XOPERATOR) {
- if (lex_formbrack && lex_brackets == lex_formbrack) {
- expect = XTERM;
- depcom();
- return ','; /* grandfather non-comma-format format */
- }
- else
- no_op("Scalar",s);
+ if (!tokenbuf[1]) {
+ if (s == bufend)
+ yyerror("Final $ should be \\$ or $name");
+ PREREF('$');
}
- if (tokenbuf[1]) {
- expectation oldexpect = expect;
- /* This kludge not intended to be bulletproof. */
- if (tokenbuf[1] == '[' && !tokenbuf[2]) {
- yylval.opval = newSVOP(OP_CONST, 0,
- newSViv((IV)compiling.cop_arybase));
- yylval.opval->op_private = OPpCONST_ARYBASE;
- TERM(THING);
- }
- tokenbuf[0] = '$';
- if (dowarn) {
- char *t;
- if (*s == '[' && oldexpect != XREF) {
- for (t = s+1; isSPACE(*t) || isALNUM(*t) || *t == '$'; t++) ;
+ /* This kludge not intended to be bulletproof. */
+ if (tokenbuf[1] == '[' && !tokenbuf[2]) {
+ yylval.opval = newSVOP(OP_CONST, 0,
+ newSViv((IV)compiling.cop_arybase));
+ yylval.opval->op_private = OPpCONST_ARYBASE;
+ TERM(THING);
+ }
+
+ d = s;
+ if (lex_state == LEX_NORMAL)
+ s = skipspace(s);
+
+ if ((expect != XREF || oldoldbufptr == last_lop) && intuit_more(s)) {
+ char *t;
+ if (*s == '[') {
+ tokenbuf[0] = '@';
+ if (dowarn) {
+ for(t = s + 1;
+ isSPACE(*t) || isALNUM(*t) || *t == '$';
+ t++) ;
if (*t++ == ',') {
bufptr = skipspace(bufptr);
- while (t < bufend && *t != ']') t++;
+ while (t < bufend && *t != ']')
+ t++;
warn("Multidimensional syntax %.*s not supported",
- t-bufptr+1, bufptr);
+ (t - bufptr) + 1, bufptr);
}
}
- if (*s == '{' && strEQ(tokenbuf, "$SIG") &&
- (t = strchr(s,'}')) && (t = strchr(t,'='))) {
+ }
+ else if (*s == '{') {
+ tokenbuf[0] = '%';
+ if (dowarn && strEQ(tokenbuf+1, "SIG") &&
+ (t = strchr(s, '}')) && (t = strchr(t, '=')))
+ {
char tmpbuf[1024];
STRLEN len;
for (t++; isSPACE(*t); t++) ;
}
}
}
- expect = XOPERATOR;
- if (lex_state == LEX_NORMAL && isSPACE(*s)) {
- bool islop = (last_lop == oldoldbufptr);
- s = skipspace(s);
- if (!islop || last_lop_op == OP_GREPSTART)
- expect = XOPERATOR;
- else if (strchr("$@\"'`q", *s))
- expect = XTERM; /* e.g. print $fh "foo" */
- else if (strchr("&*<%", *s) && isIDFIRST(s[1]))
- expect = XTERM; /* e.g. print $fh &sub */
- else if (isDIGIT(*s))
- expect = XTERM; /* e.g. print $fh 3 */
- else if (*s == '.' && isDIGIT(s[1]))
- expect = XTERM; /* e.g. print $fh .3 */
- else if (strchr("/?-+", *s) && !isSPACE(s[1]))
- expect = XTERM; /* e.g. print $fh -1 */
- else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]))
- expect = XTERM; /* print $fh <<"EOF" */
- }
- if (in_my) {
- if (strchr(tokenbuf,':'))
- croak(no_myglob,tokenbuf);
- nextval[nexttoke].opval = newOP(OP_PADANY, 0);
- nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
- force_next(PRIVATEREF);
- }
- else if (!strchr(tokenbuf,':')) {
- if (oldexpect != XREF || oldoldbufptr == last_lop) {
- if (intuit_more(s)) {
- if (*s == '[')
- tokenbuf[0] = '@';
- else if (*s == '{')
- tokenbuf[0] = '%';
- }
- }
- if (tmp = pad_findmy(tokenbuf)) {
- if (last_lop_op == OP_SORT &&
- !tokenbuf[2] && *tokenbuf =='$' &&
- tokenbuf[1] <= 'b' && tokenbuf[1] >= 'a')
- {
- for (d = in_eval ? oldoldbufptr : linestart;
- d < bufend && *d != '\n';
- d++)
- {
- if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) {
- croak("Can't use \"my %s\" in sort comparison",
- tokenbuf);
- }
- }
- }
- nextval[nexttoke].opval = newOP(OP_PADANY, 0);
- nextval[nexttoke].opval->op_targ = tmp;
- force_next(PRIVATEREF);
- }
- else
- force_ident(tokenbuf+1, *tokenbuf);
- }
- else
- force_ident(tokenbuf+1, *tokenbuf);
- }
- else {
- if (s == bufend)
- yyerror("Final $ should be \\$ or $name");
- PREREF('$');
}
+
+ expect = XOPERATOR;
+ if (lex_state == LEX_NORMAL && isSPACE(*d)) {
+ bool islop = (last_lop == oldoldbufptr);
+ if (!islop || last_lop_op == OP_GREPSTART)
+ expect = XOPERATOR;
+ else if (strchr("$@\"'`q", *s))
+ expect = XTERM; /* e.g. print $fh "foo" */
+ else if (strchr("&*<%", *s) && isIDFIRST(s[1]))
+ expect = XTERM; /* e.g. print $fh &sub */
+ else if (isDIGIT(*s))
+ expect = XTERM; /* e.g. print $fh 3 */
+ else if (*s == '.' && isDIGIT(s[1]))
+ expect = XTERM; /* e.g. print $fh .3 */
+ else if (strchr("/?-+", *s) && !isSPACE(s[1]))
+ expect = XTERM; /* e.g. print $fh -1 */
+ else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]))
+ expect = XTERM; /* print $fh <<"EOF" */
+ }
+ pending_ident = '$';
TOKEN('$');
case '@':
- s = scan_ident(s, bufend, tokenbuf+1, FALSE);
if (expect == XOPERATOR)
- no_op("Array",s);
- if (tokenbuf[1]) {
- GV* gv;
-
- tokenbuf[0] = '@';
- expect = XOPERATOR;
- if (in_my) {
- if (strchr(tokenbuf,':'))
- croak(no_myglob,tokenbuf);
- nextval[nexttoke].opval = newOP(OP_PADANY, 0);
- nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
- force_next(PRIVATEREF);
- TERM('@');
- }
- else if (!strchr(tokenbuf,':')) {
- if (intuit_more(s)) {
- if (*s == '{')
- tokenbuf[0] = '%';
- }
- if (tmp = pad_findmy(tokenbuf)) {
- nextval[nexttoke].opval = newOP(OP_PADANY, 0);
- nextval[nexttoke].opval->op_targ = tmp;
- force_next(PRIVATEREF);
- TERM('@');
- }
- }
-
- /* Force them to make up their mind on "@foo". */
- if (lex_state != LEX_NORMAL && !lex_brackets &&
- ( !(gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV)) ||
- (*tokenbuf == '@'
- ? !GvAV(gv)
- : !GvHV(gv) )))
- {
- char tmpbuf[1024];
- sprintf(tmpbuf, "Literal @%s now requires backslash",tokenbuf+1);
- yyerror(tmpbuf);
- }
+ no_op("Array", s);
+ tokenbuf[0] = '@';
+ s = scan_ident(s, bufend, tokenbuf+1, FALSE);
+ if (!tokenbuf[1]) {
+ if (s == bufend)
+ yyerror("Final @ should be \\@ or @name");
+ PREREF('@');
+ }
+ if (lex_state == LEX_NORMAL)
+ s = skipspace(s);
+ if ((expect != XREF || oldoldbufptr == last_lop) && intuit_more(s)) {
+ if (*s == '{')
+ tokenbuf[0] = '%';
/* Warn about @ where they meant $. */
if (dowarn) {
}
}
}
- force_ident(tokenbuf+1, *tokenbuf);
- }
- else {
- if (s == bufend)
- yyerror("Final @ should be \\@ or @name");
- PREREF('@');
}
+ pending_ident = '@';
TERM('@');
case '/': /* may either be division or pattern */
keylookup:
bufptr = s;
s = scan_word(s, tokenbuf, FALSE, &len);
-
- if (*s == ':' && s[1] == ':' && strNE(tokenbuf, "CORE"))
+
+ /* Some keywords can be followed by any delimiter, including ':' */
+ tmp = (len == 1 && strchr("msyq", tokenbuf[0]) ||
+ len == 2 && ((tokenbuf[0] == 't' && tokenbuf[1] == 'r') ||
+ (tokenbuf[0] == 'q' &&
+ strchr("qwx", tokenbuf[1]))));
+
+ /* x::* is just a word, unless x is "CORE" */
+ if (!tmp && *s == ':' && s[1] == ':' && strNE(tokenbuf, "CORE"))
goto just_a_word;
+ d = s;
+ while (d < bufend && isSPACE(*d))
+ d++; /* no comments skipped here, or s### is misparsed */
+
+ /* Is this a label? */
+ if (!tmp && expect == XSTATE
+ && d < bufend && *d == ':' && *(d + 1) != ':') {
+ s = d + 1;
+ yylval.pval = savepv(tokenbuf);
+ CLINE;
+ TOKEN(LABEL);
+ }
+
+ /* Check for keywords */
tmp = keyword(tokenbuf, len);
/* Is this a word before a => operator? */
- d = s;
- while (d < bufend && (*d == ' ' || *d == '\t'))
- d++; /* no comments skipped here, or s### is misparsed */
if (strnEQ(d,"=>",2)) {
CLINE;
if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE)))
croak("Bad name after %s::", tokenbuf);
}
- /* Do special processing at start of statement. */
-
- if (expect == XSTATE) {
- while (isSPACE(*s)) s++;
- if (*s == ':') { /* It's a label. */
- yylval.pval = savepv(tokenbuf);
- s++;
- CLINE;
- TOKEN(LABEL);
- }
- }
- else if (expect == XOPERATOR) {
+ if (expect == XOPERATOR) {
if (bufptr == linestart) {
curcop->cop_line--;
warn(warn_nosemi);
/* (But it's an indir obj regardless for sort.) */
if ((last_lop_op == OP_SORT ||
- (!immediate_paren && (!gv || !GvCV(gv))) ) &&
+ (!immediate_paren && (!gv || !GvCVu(gv))) ) &&
(last_lop_op != OP_MAPSTART && last_lop_op != OP_GREPSTART)){
expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR;
goto bareword;
/* If followed by var or block, call it a method (unless sub) */
- if ((*s == '$' || *s == '{') && (!gv || !GvCV(gv))) {
+ if ((*s == '$' || *s == '{') && (!gv || !GvCVu(gv))) {
last_lop = oldbufptr;
last_lop_op = OP_METHOD;
PREBLOCK(METHOD);
/* Not a method, so call it a subroutine (if defined) */
- if (gv && GvCV(gv)) {
+ if (gv && GvCVu(gv)) {
CV* cv = GvCV(gv);
if (*s == '(') {
nextval[nexttoke].opval = yylval.opval;
case KEY_for:
case KEY_foreach:
yylval.ival = curcop->cop_line;
- while (s < bufend && isSPACE(*s))
- s++;
- if (isIDFIRST(*s))
- croak("Missing $ on loop variable");
+ s = skipspace(s);
+ if (isIDFIRST(*s)) {
+ char *p = s;
+ if ((bufend - p) >= 3 &&
+ strnEQ(p, "my", 2) && isSPACE(*(p + 2)))
+ p += 2;
+ p = skipspace(p);
+ if (isIDFIRST(*p))
+ croak("Missing $ on loop variable");
+ }
OPERATOR(FOR);
case KEY_formline:
FUN0(OP_GPWENT);
case KEY_getpwnam:
- FUN1(OP_GPWNAM);
+ UNI(OP_GPWNAM);
case KEY_getpwuid:
- FUN1(OP_GPWUID);
+ UNI(OP_GPWUID);
case KEY_getpeername:
UNI(OP_GETPEERNAME);
FUN0(OP_GGRENT);
case KEY_getgrnam:
- FUN1(OP_GGRNAM);
+ UNI(OP_GGRNAM);
case KEY_getgrgid:
- FUN1(OP_GGRGID);
+ UNI(OP_GGRGID);
case KEY_getlogin:
FUN0(OP_GETLOGIN);
UNI(OP_LCFIRST);
case KEY_local:
- yylval.ival = 0;
OPERATOR(LOCAL);
case KEY_length:
case KEY_my:
in_my = TRUE;
- yylval.ival = 1;
- OPERATOR(LOCAL);
+ OPERATOR(MY);
case KEY_next:
s = force_word(s,WORD,TRUE,FALSE,FALSE);
s = scan_str(s);
if (!s)
missingterm((char*)0);
+ if (dowarn && SvLEN(lex_stuff)) {
+ d = SvPV_force(lex_stuff, len);
+ for (; len; --len, ++d) {
+ if (*d == ',') {
+ warn("Possible attempt to separate words with commas");
+ break;
+ }
+ if (*d == '#') {
+ warn("Possible attempt to put comments in qw() list");
+ break;
+ }
+ }
+ }
force_next(')');
nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff));
lex_stuff = Nullsv;
LOP(OP_SETPRIORITY,XTERM);
case KEY_sethostent:
- FUN1(OP_SHOSTENT);
+ UNI(OP_SHOSTENT);
case KEY_setnetent:
- FUN1(OP_SNETENT);
+ UNI(OP_SNETENT);
case KEY_setservent:
- FUN1(OP_SSERVENT);
+ UNI(OP_SSERVENT);
case KEY_setprotoent:
- FUN1(OP_SPROTOENT);
+ UNI(OP_SPROTOENT);
case KEY_setpwent:
FUN0(OP_SPWENT);
*d = *s++;
d[1] = '\0';
if (*d == '^' && *s && (isUPPER(*s) || strchr("[\\]^_?", *s))) {
- *d = *s++ ^ 64;
+ *d = toCTRL(*s);
+ s++;
}
if (bracket) {
if (isSPACE(s[-1])) {
- while (s < send && (*s == ' ' || *s == '\t')) s++;
- *d = *s;
+ while (s < send) {
+ char ch = *s++;
+ if (ch != ' ' && ch != '\t') {
+ *d = ch;
+ break;
+ }
+ }
}
- if (isALPHA(*d) || *d == '_') {
+ if (isIDFIRST(*d)) {
d++;
while (isALNUM(*s) || *s == ':')
*d++ = *s++;
*d = '\0';
while (s < send && (*s == ' ' || *s == '\t')) s++;
- if ((*s == '[' || *s == '{')) {
+ if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) {
if (dowarn && keyword(dest, d - dest)) {
char *brack = *s == '[' ? "[...]" : "{...}";
warn("Ambiguous use of %c{%s%s} resolved to %c%s%s",
U16* pmfl;
int ch;
{
- if (ch == 'i') {
- sawi = TRUE;
+ if (ch == 'i')
*pmfl |= PMf_FOLD;
- }
else if (ch == 'g')
*pmfl |= PMf_GLOBAL;
else if (ch == 'o')
lex_stuff = Nullsv;
croak("Search pattern not terminated");
}
+
pm = (PMOP*)newPMOP(OP_MATCH, 0);
if (multi_open == '?')
pm->op_pmflags |= PMf_ONCE;
-
while (*s && strchr("iogmsx", *s))
pmflag(&pm->op_pmflags,*s++);
-
pm->op_pmpermflags = pm->op_pmflags;
+
lex_op = (OP*)pm;
yylval.ival = OP_MATCH;
return s;
) {
if (!(pm->op_pmregexp->reganch & ROPT_ANCH))
pm->op_pmflags |= PMf_SCANFIRST;
- else if (pm->op_pmflags & PMf_FOLD)
- return;
pm->op_pmshort = SvREFCNT_inc(pm->op_pmregexp->regstart);
pm->op_pmslen = SvCUR(pm->op_pmshort);
}
if (!rsfp) {
d = s;
while (s < bufend &&
- (*s != term || memcmp(s,tokenbuf,len) != 0) ) {
+ (*s != term || memNE(s,tokenbuf,len)) ) {
if (*s++ == '\n')
curcop->cop_line++;
}
(I32)curcop->cop_line,sv);
}
bufend = SvPVX(linestr) + SvCUR(linestr);
- if (*s == term && memcmp(s,tokenbuf,len) == 0) {
+ if (*s == term && memEQ(s,tokenbuf,len)) {
s = bufend - 1;
*s = ' ';
sv_catsv(linestr,herewas);
croak("panic: scan_num");
case '0':
{
- U32 i;
+ UV u;
I32 shift;
+ bool overflowed = FALSE;
if (s[1] == 'x') {
shift = 4;
goto decimal;
else
shift = 3;
- i = 0;
+ u = 0;
for (;;) {
+ UV n, b;
+
switch (*s) {
default:
goto out;
/* FALL THROUGH */
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7':
- i <<= shift;
- i += *s++ & 15;
- break;
+ b = *s++ & 15;
+ goto digit;
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
if (shift != 4)
goto out;
- i <<= 4;
- i += (*s++ & 7) + 9;
+ b = (*s++ & 7) + 9;
+ digit:
+ n = u << shift;
+ if (!overflowed && (n >> shift) != u) {
+ warn("Integer overflow in %s number",
+ (shift == 4) ? "hex" : "octal");
+ overflowed = TRUE;
+ }
+ u = n | b;
break;
}
}
out:
sv = NEWSV(92,0);
- tryi32 = i;
- if (tryi32 == i && tryi32 >= 0)
- sv_setiv(sv,tryi32);
- else
- sv_setnv(sv,(double)i);
+ sv_setuv(sv, u);
}
break;
case '1': case '2': case '3': case '4': case '5':
}
*d = '\0';
sv = NEWSV(92,0);
+ SET_NUMERIC_STANDARD();
value = atof(tokenbuf);
tryi32 = I_32(value);
if (!floatit && (double)tryi32 == value)
}
int
-start_subparse()
+start_subparse(flags)
+U32 flags;
{
int oldsavestack_ix = savestack_ix;
CV* outsidecv = compcv;
AV* comppadlist;
-#ifndef __QNX__
if (compcv) {
assert(SvTYPE(compcv) == SVt_PVCV);
}
-#endif
save_I32(&subline);
save_item(subname);
- SAVEINT(padix);
+ SAVEI32(padix);
SAVESPTR(curpad);
SAVESPTR(comppad);
SAVESPTR(comppad_name);
SAVESPTR(compcv);
- SAVEINT(comppad_name_fill);
- SAVEINT(min_intro_pending);
- SAVEINT(max_intro_pending);
- SAVEINT(pad_reset_pending);
+ SAVEI32(comppad_name_fill);
+ SAVEI32(min_intro_pending);
+ SAVEI32(max_intro_pending);
+ SAVEI32(pad_reset_pending);
compcv = (CV*)NEWSV(1104,0);
- sv_upgrade((SV *)compcv, SVt_PVCV);
+ sv_upgrade((SV *)compcv, (flags & CVf_FORMAT) ? SVt_PVFM : SVt_PVCV);
+ CvFLAGS(compcv) |= flags;
comppad = newAV();
comppad_name = newAV();
(void)strcpy(tname,"within string");
}
else if (yychar < 32)
- (void)sprintf(tname,"next char ^%c",yychar+64);
+ (void)sprintf(tname,"next char ^%c",toCTRL(yychar));
else
(void)sprintf(tname,"next char %c",yychar);
(void)sprintf(buf, "%s at %s line %d, %s\n",
projects / p5sagit/p5-mst-13.2.git / blobdiff