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));
#endif
-static char * filter_gets _((SV *sv, PerlIO *fp));
+static char * filter_gets _((SV *sv, PerlIO *fp, STRLEN append));
static void restore_rsfp _((void *f));
+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>
#include <sys/file.h>
#endif
+/* XXX If this causes problems, set i_unistd=undef in the hint file. */
+#ifdef I_UNISTD
+# include <unistd.h> /* Needed for execv() */
+#endif
+
+
#ifdef ff_next
#undef ff_next
#endif
{
char tmpbuf[128];
char *oldbp = bufptr;
- bool is_first = (oldbufptr == SvPVX(linestr));
+ bool is_first = (oldbufptr == linestart);
bufptr = s;
sprintf(tmpbuf, "%s found where operator expected", what);
yywarn(tmpbuf);
}
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);
SAVEPPTR(oldoldbufptr);
+ SAVEPPTR(linestart);
SAVESPTR(linestr);
SAVEPPTR(lex_brackstack);
SAVEPPTR(lex_casestack);
sv_catpvn(linestr, "\n;", 2);
}
SvTEMP_off(linestr);
- oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr);
+ oldoldbufptr = oldbufptr = bufptr = linestart = SvPVX(linestr);
bufend = bufptr + SvCUR(linestr);
SvREFCNT_dec(rs);
rs = newSVpv("\n", 1);
return s;
}
for (;;) {
+ STRLEN prevlen;
while (s < bufend && isSPACE(*s))
s++;
if (s < bufend && *s == '#') {
}
if (s < bufend || !rsfp || lex_state != LEX_NORMAL)
return s;
- if ((s = filter_gets(linestr, rsfp)) == Nullch) {
+ if ((s = filter_gets(linestr, rsfp, (prevlen = SvCUR(linestr)))) == Nullch) {
if (minus_n || minus_p) {
sv_setpv(linestr,minus_p ? ";}continue{print" : "");
sv_catpv(linestr,";}");
}
else
sv_setpv(linestr,";");
- oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr);
+ oldoldbufptr = oldbufptr = bufptr = s = linestart = SvPVX(linestr);
bufend = SvPVX(linestr) + SvCUR(linestr);
if (preprocess && !in_eval)
(void)my_pclose(rsfp);
rsfp = Nullfp;
return s;
}
- oldoldbufptr = oldbufptr = bufptr = s;
- bufend = bufptr + SvCUR(linestr);
+ linestart = bufptr = s + prevlen;
+ bufend = s + SvCUR(linestr);
+ s = bufptr;
incline(s);
if (perldb && curstash != debstash) {
SV *sv = NEWSV(85,0);
sv_upgrade(sv, SVt_PVMG);
- sv_setsv(sv,linestr);
+ sv_setpvn(sv,bufptr,bufend-bufptr);
av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
}
}
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);
+ SAVEPPTR(linestart);
SAVESPTR(linestr);
SAVEPPTR(lex_brackstack);
SAVEPPTR(lex_casestack);
linestr = lex_stuff;
lex_stuff = Nullsv;
- bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
+ bufend = bufptr = oldbufptr = oldoldbufptr = linestart = SvPVX(linestr);
bufend += SvCUR(linestr);
SAVEFREESV(linestr);
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
if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) {
linestr = lex_repl;
lex_inpat = 0;
- bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
+ bufend = bufptr = oldbufptr = oldoldbufptr = linestart = SvPVX(linestr);
bufend += SvCUR(linestr);
SAVEFREESV(linestr);
lex_dojoin = FALSE;
continue;
case 'c':
s++;
- *d = *s++;
- if (isLOWER(*d))
- *d = toUPPER(*d);
- *d++ ^= 64;
+ len = *s++;
+ *d++ = toCTRL(len);
continue;
case 'b':
*d++ = '\b';
/* 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));
}
static char *
-filter_gets(sv,fp)
+filter_gets(sv,fp, append)
register SV *sv;
register PerlIO *fp;
+STRLEN append;
{
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
return Nullch ;
}
else
- return (sv_gets(sv, fp, 0)) ;
+ return (sv_gets(sv, fp, append));
}
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);
}
}
sv_catpv(linestr, "\n");
- oldoldbufptr = oldbufptr = s = SvPVX(linestr);
+ oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
bufend = SvPVX(linestr) + SvCUR(linestr);
if (perldb && curstash != debstash) {
SV *sv = NEWSV(85,0);
goto retry;
}
do {
- if ((s = filter_gets(linestr, rsfp)) == Nullch) {
+ if ((s = filter_gets(linestr, rsfp, 0)) == Nullch) {
fake_eof:
if (rsfp) {
if (preprocess && !in_eval)
if (!in_eval && (minus_n || minus_p)) {
sv_setpv(linestr,minus_p ? ";}continue{print" : "");
sv_catpv(linestr,";}");
- oldoldbufptr = oldbufptr = s = SvPVX(linestr);
+ oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
bufend = SvPVX(linestr) + SvCUR(linestr);
minus_n = minus_p = 0;
goto retry;
}
- oldoldbufptr = oldbufptr = s = SvPVX(linestr);
+ oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
sv_setpv(linestr,"");
TOKEN(';'); /* not infinite loop because rsfp is NULL now */
}
/* Incest with pod. */
if (*s == '=' && strnEQ(s, "=cut", 4)) {
sv_setpv(linestr, "");
- oldoldbufptr = oldbufptr = s = SvPVX(linestr);
+ oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
bufend = SvPVX(linestr) + SvCUR(linestr);
doextract = FALSE;
}
}
incline(s);
} while (doextract);
- oldoldbufptr = oldbufptr = bufptr = s;
+ oldoldbufptr = oldbufptr = bufptr = linestart = s;
if (perldb && curstash != debstash) {
SV *sv = NEWSV(85,0);
we must not do it again */
{
sv_setpv(linestr, "");
- oldoldbufptr = oldbufptr = s = SvPVX(linestr);
+ oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
bufend = SvPVX(linestr) + SvCUR(linestr);
preambled = FALSE;
if (perldb)
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);
+ }
+ tokenbuf[0] = '%';
+ s = scan_ident(s, bufend, tokenbuf+1, TRUE);
+ if (!tokenbuf[1]) {
+ if (s == bufend)
+ yyerror("Final % should be \\% or %name");
+ PREREF('%');
}
- ++s;
- Mop(OP_MODULO);
+ pending_ident = '%';
+ TERM('%');
case '^':
s++;
case XOPERATOR:
while (s < bufend && (*s == ' ' || *s == '\t'))
s++;
- if (s < bufend && (isALPHA(*s) || *s == '_')) {
+ if (s < bufend && isIDFIRST(*s)) {
d = scan_word(s, tokenbuf, FALSE, &len);
while (d < bufend && (*d == ' ' || *d == '\t'))
d++;
AOPERATOR(ANDAND);
s--;
if (expect == XOPERATOR) {
- if (dowarn && isALPHA(*s) && bufptr == SvPVX(linestr)) {
+ if (dowarn && isALPHA(*s) && bufptr == linestart) {
curcop->cop_line--;
warn(warn_nosemi);
curcop->cop_line++;
warn("Reversed %c= operator",tmp);
s--;
if (expect == XSTATE && isALPHA(tmp) &&
- (s == SvPVX(linestr)+1 || s[-2] == '\n') )
+ (s == linestart+1 || s[-2] == '\n') )
{
if (in_eval && !rsfp) {
d = bufend;
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 $fh <<"EOF" */
- }
- if (in_my) {
- if (strchr(tokenbuf,':'))
- croak(no_myglob,tokenbuf);
- nextval[nexttoke].opval = newOP(OP_PADANY, 0);
- nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
- force_next(PRIVATEREF);
- }
- else if (!strchr(tokenbuf,':')) {
- if (oldexpect != XREF || oldoldbufptr == last_lop) {
- if (intuit_more(s)) {
- if (*s == '[')
- tokenbuf[0] = '@';
- else if (*s == '{')
- tokenbuf[0] = '%';
- }
- }
- if (tmp = pad_findmy(tokenbuf)) {
- if (!tokenbuf[2] && *tokenbuf =='$' &&
- tokenbuf[1] <= 'b' && tokenbuf[1] >= 'a')
- {
- for (d = in_eval ? oldoldbufptr : SvPVX(linestr);
- 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 */
case '.':
if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' &&
- (s == SvPVX(linestr) || s[-1] == '\n') ) {
+ (s == linestart || s[-1] == '\n') ) {
lex_formbrack = 0;
expect = XSTATE;
goto rightbracket;
if (*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 (expect == XSTATE && d < bufend && *d == ':' && *(d + 1) != ':') {
+ if (len == 1 && strchr("syq", tokenbuf[0]) ||
+ len == 2 && ((tokenbuf[0] == 't' && tokenbuf[1] == 'r') ||
+ (tokenbuf[0] == 'q' &&
+ strchr("qwx", tokenbuf[1]))))
+ ; /* no */
+ else {
+ 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 (bufptr == SvPVX(linestr)) {
+ if (expect == XOPERATOR) {
+ if (bufptr == linestart) {
curcop->cop_line--;
warn(warn_nosemi);
curcop->cop_line++;
if (hints & HINT_STRICT_SUBS &&
lastchar != '-' &&
strnNE(s,"->",2) &&
+ last_lop_op != OP_TRUNCATE && /* S/F prototype in opcode.pl */
last_lop_op != OP_ACCEPT &&
last_lop_op != OP_PIPE_OP &&
last_lop_op != OP_SOCKPAIR)
fcntl(fd,F_SETFD,fd >= 3);
}
#endif
+ /* Mark this internal pseudo-handle as clean */
+ IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT;
if (preprocess)
IoTYPE(GvIOp(gv)) = '|';
else if ((PerlIO*)rsfp == PerlIO_stdin())
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);
case KEY_if:
yylval.ival = curcop->cop_line;
- OPERATOR(IF);
+ PRETERMBLOCK(IF);
case KEY_index:
LOP(OP_INDEX,XTERM);
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);
case KEY_until:
yylval.ival = curcop->cop_line;
- OPERATOR(UNTIL);
+ PRETERMBLOCK(UNTIL);
case KEY_unless:
yylval.ival = curcop->cop_line;
- OPERATOR(UNLESS);
+ PRETERMBLOCK(UNLESS);
case KEY_unlink:
LOP(OP_UNLINK,XTERM);
case KEY_while:
yylval.ival = curcop->cop_line;
- OPERATOR(WHILE);
+ PRETERMBLOCK(WHILE);
case KEY_warn:
hints |= HINT_BLOCK_SCOPE;
*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;
}
- 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 || bcmp(s,tokenbuf,len) != 0) ) {
+ (*s != term || memNE(s,tokenbuf,len)) ) {
if (*s++ == '\n')
curcop->cop_line++;
}
s += len - 1;
sv_catpvn(herewas,s,bufend-s);
sv_setsv(linestr,herewas);
- oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr);
+ oldoldbufptr = oldbufptr = bufptr = s = linestart = SvPVX(linestr);
bufend = SvPVX(linestr) + SvCUR(linestr);
}
else
sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */
while (s >= bufend) { /* multiple line string? */
if (!rsfp ||
- !(oldoldbufptr = oldbufptr = s = filter_gets(linestr, rsfp))) {
+ !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) {
curcop->cop_line = multi_start;
missingterm(tokenbuf);
}
(I32)curcop->cop_line,sv);
}
bufend = SvPVX(linestr) + SvCUR(linestr);
- if (*s == term && bcmp(s,tokenbuf,len) == 0) {
+ if (*s == term && memEQ(s,tokenbuf,len)) {
s = bufend - 1;
*s = ' ';
sv_catsv(linestr,herewas);
if (s < bufend) break; /* string ends on this line? */
if (!rsfp ||
- !(oldoldbufptr = oldbufptr = s = filter_gets(linestr, rsfp))) {
+ !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) {
sv_free(sv);
curcop->cop_line = multi_start;
return Nullch;
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)
}
s = eol;
if (rsfp) {
- s = filter_gets(linestr, rsfp);
- oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr);
+ s = filter_gets(linestr, rsfp, 0);
+ oldoldbufptr = oldbufptr = bufptr = linestart = SvPVX(linestr);
bufend = bufptr + SvCUR(linestr);
if (!s) {
s = bufptr;
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);
(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