static void check_uni _((void));
static void force_next _((I32 type));
+static char *force_version _((char *start));
static char *force_word _((char *start, int token, int check_keyword, int allow_pack, int allow_tick));
static SV *q _((SV *sv));
static char *scan_const _((char *start));
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, 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
/* grandfather return to old style */
#define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP)
-static cryptswitch_t cryptswitch_fp = NULL;
-
static int
ao(toketype)
int toketype;
char *s;
{
char tmpbuf[128];
- char *oldbufptr = bufptr;
+ char *oldbp = bufptr;
+ bool is_first = (oldbufptr == linestart);
bufptr = s;
sprintf(tmpbuf, "%s found where operator expected", what);
yywarn(tmpbuf);
- if (oldbufptr == SvPVX(linestr))
+ if (is_first)
warn("\t(Missing semicolon on previous line?)\n");
- bufptr = oldbufptr;
+ else if (oldoldbufptr && isIDFIRST(*oldoldbufptr)) {
+ char *t;
+ for (t = oldoldbufptr; *t && (isALNUM(*t) || *t == ':'); t++) ;
+ if (t < bufptr && isSPACE(*t))
+ warn("\t(Do you need to predeclare %.*s?)\n",
+ t - oldoldbufptr, oldoldbufptr);
+
+ }
+ else
+ warn("\t(Missing operator before %.*s?)\n", s - oldbp, oldbp);
+ bufptr = oldbp;
}
static void
}
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);
- SAVESPTR(rsfp);
+ SAVEDESTRUCTOR(restore_rsfp, rsfp);
lex_state = LEX_NORMAL;
lex_defer = 0;
sv_catpvn(linestr, "\n;", 2);
}
SvTEMP_off(linestr);
- oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr);
+ oldoldbufptr = oldbufptr = bufptr = linestart = SvPVX(linestr);
bufend = bufptr + SvCUR(linestr);
- rs = "\n";
- rslen = 1;
- rschar = '\n';
- rspara = 0;
+ SvREFCNT_dec(rs);
+ rs = newSVpv("\n", 1);
rsfp = 0;
}
void
lex_end()
{
+ doextract = FALSE;
+}
+
+static void
+restore_rsfp(f)
+void *f;
+{
+ PerlIO *fp = (PerlIO*)f;
+
+ if (rsfp == PerlIO_stdin())
+ PerlIO_clearerr(rsfp);
+ else if (rsfp && (rsfp != fp))
+ PerlIO_close(rsfp);
+ rsfp = fp;
}
static void
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 = sv_gets(linestr, rsfp, 0)) == 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);
- else if ((FILE*)rsfp == stdin)
- clearerr(stdin);
+ else if ((PerlIO*)rsfp == PerlIO_stdin())
+ PerlIO_clearerr(rsfp);
else
- (void)fclose(rsfp);
+ (void)PerlIO_close(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);
}
}
int kind;
{
if (s && *s) {
- nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0));
+ OP* op = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0));
+ nextval[nexttoke].opval = op;
force_next(WORD);
- if (kind)
- gv_fetchpv(s, TRUE,
+ if (kind) {
+ op->op_private = OPpCONST_ENTERED;
+ /* 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 :
SVt_PVGV
);
+ }
}
}
+static char *
+force_version(s)
+char *s;
+{
+ OP *version = Nullop;
+
+ s = skipspace(s);
+
+ /* default VERSION number -- GBARR */
+
+ if(isDIGIT(*s)) {
+ char *d;
+ int c;
+ 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 */
+ version = yylval.opval;
+ }
+ }
+
+ /* NOTE: The parser sees the package name and the VERSION swapped */
+ nextval[nexttoke].opval = version;
+ force_next(WORD);
+
+ return (s);
+}
+
static SV *
q(sv)
SV *sv;
return sv;
s = SvPV_force(sv, len);
+ if (SvIVX(sv) == -1)
+ return sv;
send = s + len;
while (s < send && *s != '\\')
s++;
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;
SV *sv = NEWSV(93, send - start);
register char *s = start;
register char *d = SvPVX(sv);
- char delim = SvIVX(linestr);
bool dorange = FALSE;
I32 len;
char *leave =
lex_inpat
- ? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]}"
+ ? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]} \t\n\r\f\v#"
: (lex_inwhat & OP_TRANS)
? ""
: "";
SvGROW(sv, SvLEN(sv) + 256);
d = SvPVX(sv) + i;
d -= 2;
- max = d[1] & 0377;
- for (i = (*d & 0377); i <= max; i++)
+ max = (U8)d[1];
+ for (i = (U8)*d; i <= max; i++)
*d++ = i;
dorange = FALSE;
continue;
s++;
}
}
+ else if (*s == '(' && lex_inpat && s[1] == '?' && s[2] == '#') {
+ while (s < send && *s != ')')
+ *d++ = *s++;
+ }
+ else if (*s == '#' && lex_inpat &&
+ ((PMOP*)lex_inpat)->op_pmflags & PMf_EXTENDED) {
+ while (s+1 < send && *s != '\n')
+ *d++ = *s++;
+ }
else if (*s == '@' && s[1] && (isALNUM(s[1]) || strchr(":'{$", s[1])))
break;
else if (*s == '$') {
}
if (*s == '\\' && s+1 < send) {
s++;
-#ifdef NOTDEF
- if (*s == delim) {
- *d++ = *s++;
- continue;
- }
-#endif
if (*s && strchr(leave, *s)) {
*d++ = '\\';
*d++ = *s++;
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_stashpv(tmpbuf, FALSE)) {
+ 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));
}
-/* Encrypted script support: cryptswitch_add() may be called to */
-/* define a function which may manipulate the input stream */
-/* (via popen() etc) to decode the input if required. */
-/* At the moment we only allow one cryptswitch function. */
+/* Encoded script support. filter_add() effectively inserts a
+ * 'pre-processing' function into the current source input stream.
+ * Note that the filter function only applies to the current source file
+ * (e.g., it will not affect files 'require'd or 'use'd by this one).
+ *
+ * The datasv parameter (which may be NULL) can be used to pass
+ * private data to this instance of the filter. The filter function
+ * can recover the SV using the FILTER_DATA macro and use it to
+ * store private buffers and state information.
+ *
+ * The supplied datasv parameter is upgraded to a PVIO type
+ * and the IoDIRP field is used to store the function pointer.
+ * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for
+ * private use must be set using malloc'd pointers.
+ */
+static int filter_debug = 0;
+
+SV *
+filter_add(funcp, datasv)
+ filter_t funcp;
+ SV *datasv;
+{
+ if (!funcp){ /* temporary handy debugging hack to be deleted */
+ filter_debug = atoi((char*)datasv);
+ return NULL;
+ }
+ if (!rsfp_filters)
+ rsfp_filters = newAV();
+ if (!datasv)
+ datasv = newSV(0);
+ if (!SvUPGRADE(datasv, SVt_PVIO))
+ die("Can't upgrade filter_add data to SVt_PVIO");
+ IoDIRP(datasv) = (DIR*)funcp; /* stash funcp into spare field */
+ if (filter_debug)
+ warn("filter_add func %lx (%s)", funcp, SvPV(datasv,na));
+ av_unshift(rsfp_filters, 1);
+ av_store(rsfp_filters, 0, datasv) ;
+ return(datasv);
+}
+
+
+/* Delete most recently added instance of this filter function. */
void
-cryptswitch_add(funcp)
- cryptswitch_t funcp;
+filter_del(funcp)
+ filter_t funcp;
+{
+ if (filter_debug)
+ warn("filter_del func %lx", funcp);
+ if (!rsfp_filters || AvFILL(rsfp_filters)<0)
+ return;
+ /* if filter is on top of stack (usual case) just pop it off */
+ if (IoDIRP(FILTER_DATA(0)) == (void*)funcp){
+ /* sv_free(av_pop(rsfp_filters)); */
+ sv_free(av_shift(rsfp_filters));
+
+ return;
+ }
+ /* we need to search for the correct entry and clear it */
+ die("filter_del can only delete in reverse order (currently)");
+}
+
+
+/* Invoke the n'th filter function for the current rsfp. */
+I32
+filter_read(idx, buf_sv, maxlen)
+ int idx;
+ SV *buf_sv;
+ int maxlen; /* 0 = read one text line */
{
- cryptswitch_fp = funcp;
+ filter_t funcp;
+ SV *datasv = NULL;
+
+ if (!rsfp_filters)
+ return -1;
+ if (idx > AvFILL(rsfp_filters)){ /* Any more filters? */
+ /* Provide a default input filter to make life easy. */
+ /* Note that we append to the line. This is handy. */
+ if (filter_debug)
+ warn("filter_read %d: from rsfp\n", idx);
+ if (maxlen) {
+ /* Want a block */
+ int len ;
+ int old_len = SvCUR(buf_sv) ;
+
+ /* ensure buf_sv is large enough */
+ SvGROW(buf_sv, old_len + maxlen) ;
+ if ((len = PerlIO_read(rsfp, SvPVX(buf_sv) + old_len, maxlen)) <= 0){
+ if (PerlIO_error(rsfp))
+ return -1; /* error */
+ else
+ return 0 ; /* end of file */
+ }
+ SvCUR_set(buf_sv, old_len + len) ;
+ } else {
+ /* Want a line */
+ if (sv_gets(buf_sv, rsfp, SvCUR(buf_sv)) == NULL) {
+ if (PerlIO_error(rsfp))
+ return -1; /* error */
+ else
+ return 0 ; /* end of file */
+ }
+ }
+ return SvCUR(buf_sv);
+ }
+ /* Skip this filter slot if filter has been deleted */
+ if ( (datasv = FILTER_DATA(idx)) == &sv_undef){
+ if (filter_debug)
+ warn("filter_read %d: skipped (filter deleted)\n", idx);
+ return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */
+ }
+ /* Get function pointer hidden within datasv */
+ funcp = (filter_t)IoDIRP(datasv);
+ if (filter_debug)
+ warn("filter_read %d: via function %lx (%s)\n",
+ idx, funcp, SvPV(datasv,na));
+ /* 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)(idx, buf_sv, maxlen);
}
+static char *
+filter_gets(sv,fp, append)
+register SV *sv;
+register PerlIO *fp;
+STRLEN append;
+{
+ if (rsfp_filters) {
+
+ 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, append));
+
+}
-static char* exp_name[] =
+
+#ifdef DEBUGGING
+ static char* exp_name[] =
{ "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 ')';
}
if (lex_casemods > 10) {
- char* newlb = (char*)realloc(lex_casestack, lex_casemods + 2);
+ char* newlb = Renew(lex_casestack, lex_casemods + 2, char);
if (newlb != lex_casestack) {
SAVEFREEPV(newlb);
lex_casestack = newlb;
return yylex();
}
+ case LEX_INTERPPUSH:
+ return sublex_push();
+
case LEX_INTERPSTART:
if (bufptr == bufend)
return sublex_done();
oldoldbufptr = oldbufptr;
oldbufptr = s;
DEBUG_p( {
- fprintf(stderr,"### Tokener expecting %s at %s\n", exp_name[expect], s);
+ PerlIO_printf(PerlIO_stderr(), "### Tokener expecting %s at %s\n", exp_name[expect], s);
} )
retry:
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);
if (!in_eval && !preambled) {
preambled = TRUE;
sv_setpv(linestr,incl_perldb());
- if (autoboot_preamble)
- sv_catpv(linestr, autoboot_preamble);
+ if (SvCUR(linestr))
+ sv_catpv(linestr,";");
+ if (preambleav){
+ while(AvFILL(preambleav) >= 0) {
+ SV *tmpsv = av_shift(preambleav);
+ sv_catsv(linestr, tmpsv);
+ sv_catpv(linestr, ";");
+ sv_free(tmpsv);
+ }
+ sv_free((SV*)preambleav);
+ preambleav = NULL;
+ }
if (minus_n || minus_p) {
sv_catpv(linestr, "LINE: while (<>) {");
if (minus_l)
}
}
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;
}
- /* Give cryptswitch a chance. Note that cryptswitch_fp may */
- /* be called several times owing to "goto retry;"'s below. */
- if (cryptswitch_fp)
- rsfp = (*cryptswitch_fp)(rsfp);
do {
- if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) {
+ if ((s = filter_gets(linestr, rsfp, 0)) == Nullch) {
fake_eof:
if (rsfp) {
if (preprocess && !in_eval)
(void)my_pclose(rsfp);
- else if ((FILE*)rsfp == stdin)
- clearerr(stdin);
+ else if ((PerlIO *)rsfp == PerlIO_stdin())
+ PerlIO_clearerr(rsfp);
else
- (void)fclose(rsfp);
+ (void)PerlIO_close(rsfp);
rsfp = Nullfp;
}
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);
s++;
if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */
s++;
- if (!in_eval && *s == '#' && s[1] == '!') {
- if (!instr(s,"perl") && !instr(s,"indir") &&
- instr(origargv[0],"perl")) {
+ 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"))
+ {
char **newargv;
char *cmd;
execv(cmd,newargv);
croak("Can't exec %s", cmd);
}
- if (d = instr(s, "perl -")) {
+ if (d) {
int oldpdb = perldb;
int oldn = minus_n;
int oldp = minus_p;
- d += 6;
- /*SUPPRESS 530*/
- while (d = moreswitches(d)) ;
- if (perldb && !oldpdb ||
- minus_n && !oldn ||
- minus_p && !oldp)
- {
- sv_setpv(linestr, "");
- oldoldbufptr = oldbufptr = s = SvPVX(linestr);
- bufend = SvPVX(linestr) + SvCUR(linestr);
- preambled = FALSE;
- if (perldb)
- (void)gv_fetchfile(origfilename);
- goto retry;
+
+ while (*d && !isSPACE(*d)) d++;
+ while (*d == ' ' || *d == '\t') d++;
+
+ if (*d++ == '-') {
+ while (d = moreswitches(d)) ;
+ if (perldb && !oldpdb ||
+ ( minus_n || minus_p ) && !(oldn || oldp) )
+ /* if we have already added "LINE: while (<>) {",
+ we must not do it again */
+ {
+ sv_setpv(linestr, "");
+ oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
+ bufend = SvPVX(linestr) + SvCUR(linestr);
+ preambled = FALSE;
+ if (perldb)
+ (void)gv_fetchfile(origfilename);
+ goto retry;
+ }
}
}
}
case '-':
if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) {
s++;
+ bufptr = s;
+ tmp = *s++;
+
+ while (s < bufend && (*s == ' ' || *s == '\t'))
+ s++;
+
+ if (strnEQ(s,"=>",2)) {
+ if (dowarn)
+ warn("Ambiguous use of -%c => resolved to \"-%c\" =>",
+ tmp, tmp);
+ s = force_word(bufptr,WORD,FALSE,FALSE,FALSE);
+ OPERATOR('-'); /* unary minus */
+ }
last_uni = oldbufptr;
last_lop_op = OP_FTEREAD; /* good enough */
- switch (*s++) {
+ switch (tmp) {
case 'r': FTST(OP_FTEREAD);
case 'w': FTST(OP_FTEWRITE);
case 'x': FTST(OP_FTEEXEC);
case 'A': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTATIME);
case 'C': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTCTIME);
default:
- s -= 2;
+ croak("Unrecognized file test: -%c", tmp);
break;
}
}
s = force_word(s,METHOD,FALSE,TRUE,FALSE);
TOKEN(ARROW);
}
+ else if (*s == '$')
+ OPERATOR(ARROW);
else
- PREBLOCK(ARROW);
+ TERM(ARROW);
}
if (expect == XOPERATOR)
Aop(OP_SUBTRACT);
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("\"my\" variable %s can't be in a package",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++;
OPERATOR(tmp);
case ')':
tmp = *s++;
+ s = skipspace(s);
+ if (*s == '{')
+ PREBLOCK(tmp);
TERM(tmp);
case ']':
s++;
lex_state = LEX_INTERPEND;
}
}
- TOKEN(']');
+ TERM(']');
case '{':
leftbracket:
s++;
if (lex_brackets > 100) {
- char* newlb = (char*)realloc(lex_brackstack, lex_brackets + 1);
+ char* newlb = Renew(lex_brackstack, lex_brackets + 1, char);
if (newlb != lex_brackstack) {
SAVEFREEPV(newlb);
lex_brackstack = newlb;
lex_brackstack[lex_brackets++] = XOPERATOR;
OPERATOR(HASHBRACK);
break;
- case XBLOCK:
case XOPERATOR:
+ while (s < bufend && (*s == ' ' || *s == '\t'))
+ s++;
+ 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 + 1, len) ||
+ (minus && len == 1 && isALPHA(tokenbuf[1])) ||
+ perl_get_cv(tokenbuf + 1, FALSE) ))
+ warn("Ambiguous use of {%s} resolved to {\"%s\"}",
+ tokenbuf + !minus, tokenbuf + !minus);
+ s = force_word(s + minus, WORD, FALSE, TRUE, FALSE);
+ if (minus)
+ force_next('-');
+ }
+ }
+ /* FALL THROUGH */
+ case XBLOCK:
lex_brackstack[lex_brackets++] = XSTATE;
expect = XSTATE;
break;
if (*s == '}')
OPERATOR(HASHBRACK);
if (isALPHA(*s)) {
- for (t = s; t < bufend && isALPHA(*t); t++) ;
+ for (t = s; t < bufend && isALNUM(*t); t++) ;
}
else if (*s == '\'' || *s == '"') {
t = strchr(s+1,*s);
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;
}
}
+ if (lex_brackets < lex_fakebrack) {
+ bufptr = s;
+ lex_fakebrack = 0;
+ return yylex(); /* ignore fake brackets */
+ }
force_next('}');
TOKEN(';');
case '&':
AOPERATOR(ANDAND);
s--;
if (expect == XOPERATOR) {
- if (isALPHA(*s) && bufptr == SvPVX(linestr)) {
+ if (dowarn && isALPHA(*s) && bufptr == linestart) {
curcop->cop_line--;
warn(warn_nosemi);
curcop->cop_line++;
}
else
PREREF('&');
+ yylval.ival = (OPpENTERSUB_AMPER<<8);
TERM('&');
case '|':
if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp))
warn("Reversed %c= operator",tmp);
s--;
- if (isALPHA(tmp) && s == SvPVX(linestr)+1) {
+ if (expect == XSTATE && isALPHA(tmp) &&
+ (s == linestart+1 || s[-2] == '\n') )
+ {
+ if (in_eval && !rsfp) {
+ d = bufend;
+ while (s < d) {
+ if (*s++ == '\n') {
+ incline(s);
+ if (strnEQ(s,"=cut",4)) {
+ s = strchr(s,'\n');
+ if (s)
+ s++;
+ else
+ s = d;
+ incline(s);
+ goto retry;
+ }
+ }
+ }
+ goto retry;
+ }
s = bufend;
doextract = TRUE;
goto retry;
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, OPf_SPECIAL,
- newSViv((IV)compiling.cop_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];
- char *d = tmpbuf;
STRLEN len;
for (t++; isSPACE(*t); t++) ;
- t = scan_word(t, tmpbuf, TRUE, &len);
- if (*t != '(' && perl_get_cv(tmpbuf, FALSE))
- warn("You need to quote \"%s\"", tmpbuf);
- }
- }
- 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("\"my\" variable %s can't be in a package",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) {
- if (*s == '[')
- tokenbuf[0] = '@';
- else 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);
+ if (isIDFIRST(*t)) {
+ t = scan_word(t, tmpbuf, TRUE, &len);
+ if (*t != '(' && perl_get_cv(tmpbuf, FALSE))
+ warn("You need to quote \"%s\"", tmpbuf);
+ }
}
- 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("\"my\" variable %s can't be in a package",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 (*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 &&
- ( !(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 $. */
if (dowarn) {
}
}
}
- force_ident(tokenbuf+1, *tokenbuf);
- }
- else {
- if (s == bufend)
- yyerror("Final @ should be \\@ or @name");
- PREREF('@');
}
+ pending_ident = '@';
TERM('@');
case '/': /* may either be division or pattern */
OPERATOR(tmp);
case '.':
- if (lex_formbrack && lex_brackets == lex_formbrack && s == oldbufptr) {
+ if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' &&
+ (s == linestart || s[-1] == '\n') ) {
lex_formbrack = 0;
expect = XSTATE;
goto rightbracket;
}
if (!s)
missingterm((char*)0);
- yylval.ival = OP_STRINGIFY;
+ yylval.ival = OP_CONST;
+ for (d = SvPV(lex_stuff, len); len; len--, d++) {
+ if (*d == '$' || *d == '@' || *d == '\\') {
+ yylval.ival = OP_STRINGIFY;
+ break;
+ }
+ }
TERM(sublex_start());
case '`':
case '\\':
s++;
+ if (dowarn && lex_inwhat && isDIGIT(*s))
+ warn("Can't use \\%c to mean $%c in expression", *s, *s);
if (expect == XOPERATOR)
no_op("Backslash",s);
OPERATOR(REFGEN);
case 'z': case 'Z':
keylookup:
- d = s;
+ bufptr = s;
s = scan_word(s, tokenbuf, FALSE, &len);
-
+
+ /* 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? */
+ if (strnEQ(d,"=>",2)) {
+ CLINE;
+ if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE)))
+ warn("Ambiguous use of %s => resolved to \"%s\" =>",
+ tokenbuf, tokenbuf);
+ yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
+ yylval.opval->op_private = OPpCONST_BARE;
+ TERM(WORD);
+ }
+
if (tmp < 0) { /* second-class keyword? */
GV* gv;
if (expect != XOPERATOR &&
- (*s != ':' || s[1] != ':') &&
- (gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV)) &&
- (GvFLAGS(gv) & GVf_IMPORTED) &&
- GvCV(gv))
+ (*s != ':' || s[1] != ':') &&
+ (gv = gv_fetchpv(tokenbuf, FALSE, SVt_PVCV)) &&
+ GvIMPORTED_CV(gv))
{
tmp = 0;
}
default: /* not a keyword */
just_a_word: {
GV *gv;
+ char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]);
/* Get the rest if it looks like a package qualifier */
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++;
(expect == XREF ||
(opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) )
{
+ bool immediate_paren = *s == '(';
+
/* (Now we can afford to cross potential line boundary.) */
s = skipspace(s);
/* If not a declared subroutine, it's an indirect object. */
/* (But it's an indir obj regardless for sort.) */
- if (last_lop_op == OP_SORT || !gv || !GvCV(gv)) {
- expect = last_lop == oldoldbufptr ? XTERM : XOPERATOR;
- for (d = tokenbuf; *d && isLOWER(*d); d++) ;
- if (dowarn && !*d)
- warn(warn_reserved, tokenbuf);
- TOKEN(WORD);
+ if ((last_lop_op == OP_SORT ||
+ (!immediate_paren && (!gv || !GvCVu(gv))) ) &&
+ (last_lop_op != OP_MAPSTART && last_lop_op != OP_GREPSTART)){
+ expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR;
+ goto bareword;
}
}
nextval[nexttoke].opval = yylval.opval;
expect = XOPERATOR;
force_next(WORD);
+ yylval.ival = 0;
TOKEN('&');
}
/* If followed by var or block, call it a method (unless sub) */
- if ((*s == '$' || *s == '{') && (!gv || !GvCV(gv))) {
+ if ((*s == '$' || *s == '{') && (!gv || !GvCVu(gv))) {
last_lop = oldbufptr;
last_lop_op = OP_METHOD;
PREBLOCK(METHOD);
/* Not a method, so call it a subroutine (if defined) */
- if (gv && GvCV(gv)) {
- nextval[nexttoke].opval = yylval.opval;
+ if (gv && GvCVu(gv)) {
+ CV* cv = GvCV(gv);
if (*s == '(') {
+ nextval[nexttoke].opval = yylval.opval;
expect = XTERM;
force_next(WORD);
+ yylval.ival = 0;
TOKEN('&');
}
+ if (lastchar == '-')
+ warn("Ambiguous use of -%s resolved as -&%s()",
+ tokenbuf, tokenbuf);
last_lop = oldbufptr;
last_lop_op = OP_ENTERSUB;
+ /* Check for a constant sub */
+ {
+ SV *sv = cv_const_sv(cv);
+ if (sv) {
+ SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv);
+ ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc(sv);
+ yylval.opval->op_private = 0;
+ TOKEN(WORD);
+ }
+ }
+
+ /* Resolve to GV now. */
+ op_free(yylval.opval);
+ yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv));
+ /* Is there a prototype? */
+ if (SvPOK(cv)) {
+ STRLEN len;
+ char *proto = SvPV((SV*)cv, len);
+ if (!len)
+ TERM(FUNC0SUB);
+ if (strEQ(proto, "$"))
+ OPERATOR(UNIOPSUB);
+ if (*proto == '&' && *s == '{') {
+ sv_setpv(subname,"__ANON__");
+ PREBLOCK(LSTOPSUB);
+ }
+ }
+ nextval[nexttoke].opval = yylval.opval;
expect = XTERM;
force_next(WORD);
TOKEN(NOAMP);
}
- else if (hints & HINT_STRICT_SUBS &&
+
+ 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)
/* Call it a bare word */
- for (d = tokenbuf; *d && isLOWER(*d); d++) ;
- if (dowarn && !*d)
- warn(warn_reserved, tokenbuf);
+ bareword:
+ if (dowarn) {
+ if (lastchar != '-') {
+ for (d = tokenbuf; *d && isLOWER(*d); d++) ;
+ if (!*d)
+ warn(warn_reserved, tokenbuf);
+ }
+ }
+ if (lastchar && strchr("*%&", lastchar)) {
+ warn("Operator or semicolon missing before %c%s",
+ lastchar, tokenbuf);
+ warn("Ambiguous use of %c resolved as operator %c",
+ lastchar, lastchar);
+ }
TOKEN(WORD);
}
TERM(THING);
}
+ case KEY___DATA__:
case KEY___END__: {
GV *gv;
/*SUPPRESS 560*/
- if (!in_eval) {
- gv = gv_fetchpv("DATA",TRUE, SVt_PVIO);
- SvMULTI_on(gv);
+ if (rsfp && (!in_eval || tokenbuf[2] == 'D')) {
+ char dname[256];
+ char *pname = "main";
+ if (tokenbuf[2] == 'D')
+ pname = HvNAME(curstash ? curstash : defstash);
+ sprintf(dname,"%s::DATA", pname);
+ gv = gv_fetchpv(dname,TRUE, SVt_PVIO);
+ GvMULTI_on(gv);
if (!GvIO(gv))
GvIOp(gv) = newIO();
IoIFP(GvIOp(gv)) = rsfp;
#if defined(HAS_FCNTL) && defined(F_SETFD)
{
- int fd = fileno(rsfp);
+ int fd = PerlIO_fileno(rsfp);
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 ((FILE*)rsfp == stdin)
+ else if ((PerlIO*)rsfp == PerlIO_stdin())
IoTYPE(GvIOp(gv)) = '-';
else
IoTYPE(GvIOp(gv)) = '<';
case KEY_CORE:
if (*s == ':' && s[1] == ':') {
s += 2;
+ d = s;
s = scan_word(s, tokenbuf, FALSE, &len);
tmp = keyword(tokenbuf, len);
if (tmp < 0)
LOP(OP_CRYPT,XTERM);
case KEY_chmod:
- s = skipspace(s);
- if (dowarn && *s != '0' && isDIGIT(*s))
- yywarn("chmod: mode argument is missing initial 0");
+ if (dowarn) {
+ for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
+ if (*d != '0' && isDIGIT(*d))
+ yywarn("chmod: mode argument is missing initial 0");
+ }
LOP(OP_CHMOD,XTERM);
case KEY_chown:
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);
if (expect != XSTATE)
yyerror("\"no\" not allowed in expression");
s = force_word(s,WORD,FALSE,TRUE,FALSE);
+ s = force_version(s);
yylval.ival = 0;
OPERATOR(USE);
checkcomma(s,tokenbuf,"filehandle");
LOP(OP_PRTF,XREF);
+ case KEY_prototype:
+ UNI(OP_PROTOTYPE);
+
case KEY_push:
LOP(OP_PUSH,XTERM);
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;
OLDLOP(OP_RETURN);
case KEY_require:
+ *tokenbuf = '\0';
s = force_word(s,WORD,TRUE,TRUE,FALSE);
- if (*s == '<')
+ if (isIDFIRST(*tokenbuf))
+ gv_stashpvn(tokenbuf, strlen(tokenbuf), TRUE);
+ else if (*s == '<')
yyerror("<> should be quotes");
UNI(OP_REQUIRE);
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_sub:
really_sub:
s = skipspace(s);
- if (*s == '{' && tmp == KEY_sub) {
- sv_setpv(subname,"__ANON__");
- PRETERMBLOCK(ANONSUB);
- }
- expect = XBLOCK;
+
if (isIDFIRST(*s) || *s == '\'' || *s == ':') {
char tmpbuf[128];
+ expect = XBLOCK;
d = scan_word(s, tmpbuf, TRUE, &len);
if (strchr(tmpbuf, ':'))
sv_setpv(subname, tmpbuf);
sv_catpvn(subname,tmpbuf,len);
}
s = force_word(s,WORD,FALSE,TRUE,TRUE);
+ s = skipspace(s);
}
- else
+ else {
+ expect = XTERMBLOCK;
sv_setpv(subname,"?");
+ }
- if (tmp != KEY_format)
- PREBLOCK(SUB);
+ if (tmp == KEY_format) {
+ s = skipspace(s);
+ if (*s == '=')
+ lex_formbrack = lex_brackets + 1;
+ OPERATOR(FORMAT);
+ }
- s = skipspace(s);
- if (*s == '=')
- lex_formbrack = lex_brackets + 1;
- OPERATOR(FORMAT);
+ /* Look for a prototype */
+ if (*s == '(') {
+ s = scan_str(s);
+ if (!s) {
+ if (lex_stuff)
+ SvREFCNT_dec(lex_stuff);
+ lex_stuff = Nullsv;
+ croak("Prototype not terminated");
+ }
+ nexttoke++;
+ nextval[1] = nextval[0];
+ nexttype[1] = nexttype[0];
+ nextval[0].opval = (OP*)newSVOP(OP_CONST, 0, lex_stuff);
+ nexttype[0] = THING;
+ if (nexttoke == 1) {
+ lex_defer = lex_state;
+ lex_expect = expect;
+ lex_state = LEX_KNOWNEXT;
+ }
+ lex_stuff = Nullsv;
+ }
+
+ if (*SvPV(subname,na) == '?') {
+ sv_setpv(subname,"__ANON__");
+ TOKEN(ANONSUB);
+ }
+ PREBLOCK(SUB);
case KEY_system:
set_csh();
case KEY_syscall:
LOP(OP_SYSCALL,XTERM);
+ case KEY_sysopen:
+ LOP(OP_SYSOPEN,XTERM);
+
case KEY_sysread:
LOP(OP_SYSREAD,XTERM);
case KEY_tie:
LOP(OP_TIE,XTERM);
+ case KEY_tied:
+ UNI(OP_TIED);
+
case KEY_time:
FUN0(OP_TIME);
LOP(OP_UTIME,XTERM);
case KEY_umask:
- s = skipspace(s);
- if (dowarn && *s != '0' && isDIGIT(*s))
- warn("umask: argument is missing initial 0");
+ if (dowarn) {
+ for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
+ if (*d != '0' && isDIGIT(*d))
+ yywarn("umask: argument is missing initial 0");
+ }
UNI(OP_UMASK);
case KEY_unshift:
case KEY_use:
if (expect != XSTATE)
yyerror("\"use\" not allowed in expression");
- s = force_word(s,WORD,FALSE,TRUE,FALSE);
+ s = skipspace(s);
+ if(isDIGIT(*s)) {
+ s = force_version(s);
+ if(*s == ';' || (s = skipspace(s), *s == ';')) {
+ nextval[nexttoke].opval = Nullop;
+ force_next(WORD);
+ }
+ }
+ else {
+ s = force_word(s,WORD,FALSE,TRUE,FALSE);
+ s = force_version(s);
+ }
yylval.ival = 1;
OPERATOR(USE);
if (d[1] == '_') {
if (strEQ(d,"__LINE__")) return -KEY___LINE__;
if (strEQ(d,"__FILE__")) return -KEY___FILE__;
+ if (strEQ(d,"__DATA__")) return KEY___DATA__;
if (strEQ(d,"__END__")) return KEY___END__;
}
break;
break;
case 6:
if (strEQ(d,"exists")) return KEY_exists;
+ if (strEQ(d,"elseif")) warn("elseif should be elsif");
break;
case 8:
if (strEQ(d,"endgrent")) return -KEY_endgrent;
case 7:
if (strEQ(d,"package")) return KEY_package;
break;
+ case 9:
+ if (strEQ(d,"prototype")) return KEY_prototype;
}
break;
case 'q':
if (strEQ(d,"system")) return -KEY_system;
break;
case 7:
+ if (strEQ(d,"sysopen")) return -KEY_sysopen;
if (strEQ(d,"sysread")) return -KEY_sysread;
if (strEQ(d,"symlink")) return -KEY_symlink;
if (strEQ(d,"syscall")) return -KEY_syscall;
break;
case 4:
if (strEQ(d,"tell")) return -KEY_tell;
+ if (strEQ(d,"tied")) return KEY_tied;
if (strEQ(d,"time")) return -KEY_time;
break;
case 5:
if (*s == ',') {
int kw;
*s = '\0';
- kw = keyword(w, s - w);
+ kw = keyword(w, s - w) || perl_get_cv(w, FALSE) != 0;
*s = ',';
if (kw)
return;
{
register char *d;
char *bracket = 0;
+ char funny = *s++;
if (lex_brackets == 0)
lex_fakebrack = 0;
- s++;
if (isSPACE(*s))
s = skipspace(s);
d = dest;
lex_state = LEX_INTERPENDMAYBE;
return s;
}
- if (*s == '$' && s[1] && (isALPHA(s[1]) || strchr("$_{", s[1])))
+ if (*s == '$' && s[1] &&
+ (isALPHA(s[1]) || strchr("$_{", s[1]) || strnEQ(s+1,"::",2)) )
return s;
if (*s == '{') {
- if (lex_state == LEX_NORMAL)
- return s;
bracket = s;
s++;
}
if (s < send)
*d = *s++;
d[1] = '\0';
- if (*d == '^' && (isUPPER(*s) || strchr("[\\]^_?", *s))) {
- *d = *s++ ^ 64;
+ if (*d == '^' && *s && (isUPPER(*s) || strchr("[\\]^_?", *s))) {
+ *d = toCTRL(*s);
+ s++;
}
if (bracket) {
- if (isALPHA(*d) || *d == '_') {
+ if (isSPACE(s[-1])) {
+ while (s < send) {
+ char ch = *s++;
+ if (ch != ' ' && ch != '\t') {
+ *d = ch;
+ break;
+ }
+ }
+ }
+ if (isIDFIRST(*d)) {
d++;
- while (isALNUM(*s))
+ while (isALNUM(*s) || *s == ':')
*d++ = *s++;
*d = '\0';
- if ((*s == '[' || *s == '{') && !keyword(dest,d-dest)) {
- if (lex_brackets)
- croak("Can't use delimiter brackets within expression");
- lex_fakebrack = TRUE;
+ while (s < send && (*s == ' ' || *s == '\t')) 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",
+ funny, dest, brack, funny, dest, brack);
+ }
+ lex_fakebrack = lex_brackets+1;
bracket++;
lex_brackstack[lex_brackets++] = XOPERATOR;
return s;
s++;
if (lex_state == LEX_INTERPNORMAL && !lex_brackets)
lex_state = LEX_INTERPEND;
+ if (funny == '#')
+ funny = '@';
+ if (dowarn &&
+ (keyword(dest, d - dest) || perl_get_cv(dest, FALSE)))
+ warn("Ambiguous use of %c{%s} resolved to %c%s",
+ funny, dest, funny, dest);
}
else {
s = bracket; /* let the parser handle it */
return s;
}
-#ifdef NOTDEF
-void
-scan_prefix(pm,string,len)
-PMOP *pm;
-char *string;
-I32 len;
-{
- register SV *tmpstr;
- register char *t;
- register char *d;
- register char *e;
- char *origstring = string;
-
- if (ninstr(string, string+len, vert, vert+1))
- return;
- if (*string == '^')
- string++, len--;
- tmpstr = NEWSV(86,len);
- sv_upgrade(tmpstr, SVt_PVBM);
- sv_setpvn(tmpstr,string,len);
- t = SvPVX(tmpstr);
- e = t + len;
- BmUSEFUL(tmpstr) = 100;
- for (d=t; d < e; ) {
- switch (*d) {
- case '{':
- if (isDIGIT(d[1]))
- e = d;
- else
- goto defchar;
- break;
- case '(':
- if (d[1] == '?') { /* All bets off. */
- SvREFCNT_dec(tmpstr);
- return;
- }
- /* FALL THROUGH */
- case '.': case '[': case '$': case ')': case '|': case '+':
- case '^':
- e = d;
- break;
- case '\\':
- if (d[1] && strchr("AGZwWbB0123456789sSdDlLuUExc",d[1])) {
- e = d;
- break;
- }
- Move(d+1,d,e-d,char);
- e--;
- switch(*d) {
- case 'n':
- *d = '\n';
- break;
- case 't':
- *d = '\t';
- break;
- case 'f':
- *d = '\f';
- break;
- case 'r':
- *d = '\r';
- break;
- case 'e':
- *d = '\033';
- break;
- case 'a':
- *d = '\007';
- break;
- }
- /* FALL THROUGH */
- default:
- defchar:
- if (d[1] == '*' || (d[1] == '{' && d[2] == '0') || d[1] == '?') {
- e = d;
- break;
- }
- d++;
- }
- }
- if (d == t) {
- SvREFCNT_dec(tmpstr);
- return;
- }
- *d = '\0';
- SvCUR_set(tmpstr, d - t);
- if (d == t+len)
- pm->op_pmflags |= PMf_ALL;
- if (*origstring != '^')
- pm->op_pmflags |= PMf_SCANFIRST;
- pm->op_pmshort = tmpstr;
- pm->op_pmslen = d - t;
-}
-#endif
-
void pmflag(pmfl,ch)
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;
lex_repl = repl;
}
+ pm->op_pmpermflags = pm->op_pmflags;
lex_op = (OP*)pm;
yylval.ival = OP_SUBST;
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);
}
else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */
if (pm->op_pmshort &&
(SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)) )){
SvREFCNT_dec(pm->op_pmshort); /* ok if null */
pm->op_pmshort = pm->op_pmregexp->regmust;
+ pm->op_pmslen = SvCUR(pm->op_pmshort);
pm->op_pmregexp->regmust = Nullsv;
pm->op_pmflags |= PMf_SCANFIRST;
}
SV *tmpstr;
char term;
register char *d;
+ char *peek;
s += 2;
d = tokenbuf;
if (!rsfp)
*d++ = '\n';
- if (*s && strchr("`'\"",*s)) {
+ for (peek = s; *peek == ' ' || *peek == '\t'; peek++) ;
+ if (*peek && strchr("`'\"",*peek)) {
+ s = peek;
term = *s++;
s = cpytill(d,s,bufend,term,&len);
if (s < bufend)
s++, term = '\'';
else
term = '"';
+ if (!isALNUM(*s))
+ deprecate("bare << to mean <<\"\"");
while (isALNUM(*s))
*d++ = *s++;
} /* assuming tokenbuf won't clobber */
else
s--, herewas = newSVpv(s,d-s);
s += SvCUR(herewas);
- if (term == '\'')
+
+ tmpstr = NEWSV(87,80);
+ sv_upgrade(tmpstr, SVt_PVIV);
+ if (term == '\'') {
op_type = OP_CONST;
- if (term == '`')
+ SvIVX(tmpstr) = -1;
+ }
+ else if (term == '`') {
op_type = OP_BACKTICK;
+ SvIVX(tmpstr) = '\\';
+ }
CLINE;
multi_start = curcop->cop_line;
multi_open = multi_close = '<';
- tmpstr = NEWSV(87,80);
- sv_upgrade(tmpstr, SVt_PVIV);
- SvIVX(tmpstr) = '\\';
term = *tokenbuf;
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 = sv_gets(linestr, rsfp, 0))) {
+ !(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);
else
croak("Unterminated <> operator");
- if (*d == '$') d++;
+ if (*d == '$' && d[1]) d++;
while (*d && (isALNUM(*d) || *d == '\'' || *d == ':'))
d++;
if (d - tokenbuf != len) {
if (s < bufend) break; /* string ends on this line? */
if (!rsfp ||
- !(oldoldbufptr = oldbufptr = s = sv_gets(linestr, rsfp, 0))) {
+ !(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 = sv_gets(linestr, rsfp, 0);
- 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;
}
int
-start_subparse()
+start_subparse(flags)
+U32 flags;
{
int oldsavestack_ix = savestack_ix;
+ CV* outsidecv = compcv;
+ AV* comppadlist;
+ if (compcv) {
+ assert(SvTYPE(compcv) == SVt_PVCV);
+ }
save_I32(&subline);
save_item(subname);
- SAVEINT(padix);
+ SAVEI32(padix);
SAVESPTR(curpad);
SAVESPTR(comppad);
SAVESPTR(comppad_name);
- SAVEINT(comppad_name_fill);
- SAVEINT(min_intro_pending);
- SAVEINT(max_intro_pending);
+ SAVESPTR(compcv);
+ 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, (flags & CVf_FORMAT) ? SVt_PVFM : SVt_PVCV);
+ CvFLAGS(compcv) |= flags;
+
comppad = newAV();
- SAVEFREESV((SV*)comppad);
comppad_name = newAV();
- SAVEFREESV((SV*)comppad_name);
comppad_name_fill = 0;
min_intro_pending = 0;
av_push(comppad, Nullsv);
curpad = AvARRAY(comppad);
padix = 0;
-
subline = curcop->cop_line;
+
+ comppadlist = newAV();
+ AvREAL_off(comppadlist);
+ av_store(comppadlist, 0, (SV*)comppad_name);
+ av_store(comppadlist, 1, (SV*)comppad);
+
+ CvPADLIST(compcv) = comppadlist;
+ CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc((SV*)outsidecv);
+
return oldsavestack_ix;
}
char *s;
{
--error_count;
- return yyerror(s);
+ in_eval |= 2;
+ yyerror(s);
+ in_eval &= ~2;
+ return 0;
}
int
if (lex_state == LEX_NORMAL ||
(lex_state == LEX_KNOWNEXT && lex_defer == LEX_NORMAL))
(void)strcpy(tname,"at end of line");
+ else if (lex_inpat)
+ (void)strcpy(tname,"within pattern");
else
(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",
multi_open,multi_close,(long)multi_start);
multi_end = 0;
}
- if (in_eval)
- sv_catpv(GvSV(gv_fetchpv("@",TRUE, SVt_PV)),buf);
+ if (in_eval & 2)
+ warn("%s",buf);
+ else if (in_eval)
+ sv_catpv(GvSV(errgv),buf);
else
- fputs(buf,stderr);
+ PerlIO_printf(PerlIO_stderr(), "%s",buf);
if (++error_count >= 10)
croak("%s has too many errors.\n",
SvPVX(GvSV(curcop->cop_filegv)));
+ in_my = 0;
return 0;
}
projects / p5sagit/p5-mst-13.2.git / blobdiff