static char *scan_const _((char *start));
static char *scan_formline _((char *s));
static char *scan_heredoc _((char *s));
-static char *scan_ident _((char *s, char *send, char *dest, I32 ck_uni));
+static char *scan_ident _((char *s, char *send, char *dest, STRLEN destlen,
+ I32 ck_uni));
static char *scan_inputsymbol _((char *start));
static char *scan_pat _((char *start));
static char *scan_str _((char *start));
static char *scan_subst _((char *start));
static char *scan_trans _((char *start));
-static char *scan_word _((char *s, char *dest, int allow_package, STRLEN *slp));
+static char *scan_word _((char *s, char *dest, STRLEN destlen,
+ int allow_package, STRLEN *slp));
static char *skipspace _((char *s));
static void checkcomma _((char *s, char *name, char *what));
static void force_ident _((char *s, int kind));
static char * filter_gets _((SV *sv, PerlIO *fp, STRLEN append));
static void restore_rsfp _((void *f));
+static char ident_too_long[] = "Identifier too long";
+
static char *linestart; /* beg. of most recently read line */
static char pending_ident; /* pending identifier lookup */
* can get by with a single comparison (if the compiler is smart enough).
*/
+/* #define LEX_NOTPARSING 11 is done in perl.h. */
+
#define LEX_NORMAL 10
#define LEX_INTERPNORMAL 9
#define LEX_INTERPCASEMOD 8
#define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP)
static int
-ao(toketype)
-int toketype;
+ao(int toketype)
{
if (*bufptr == '=') {
bufptr++;
}
static void
-no_op(what, s)
-char *what;
-char *s;
+no_op(char *what, char *s)
{
char *oldbp = bufptr;
bool is_first = (oldbufptr == linestart);
- char *msg;
bufptr = s;
- New(890, msg, strlen(what) + 40, char);
- sprintf(msg, "%s found where operator expected", what);
- yywarn(msg);
- Safefree(msg);
+ yywarn(form("%s found where operator expected", what));
if (is_first)
warn("\t(Missing semicolon on previous line?)\n");
else if (oldoldbufptr && isIDFIRST(*oldoldbufptr)) {
}
static void
-missingterm(s)
-char *s;
+missingterm(char *s)
{
char tmpbuf[3];
char q;
}
void
-deprecate(s)
-char *s;
+deprecate(char *s)
{
if (dowarn)
warn("Use of %s is deprecated", s);
}
static void
-depcom()
+depcom(void)
{
deprecate("comma-less variable list");
}
void
-lex_start(line)
-SV *line;
+lex_start(SV *line)
{
+ dTHR;
char *s;
STRLEN len;
}
void
-lex_end()
+lex_end(void)
{
doextract = FALSE;
}
static void
-restore_rsfp(f)
-void *f;
+restore_rsfp(void *f)
{
PerlIO *fp = (PerlIO*)f;
}
static void
-incline(s)
-char *s;
+incline(char *s)
{
+ dTHR;
char *t;
char *n;
char ch;
}
static char *
-skipspace(s)
-register char *s;
+skipspace(register char *s)
{
+ dTHR;
if (lex_formbrack && lex_brackets <= lex_formbrack) {
while (s < bufend && (*s == ' ' || *s == '\t'))
s++;
return s;
if ((s = filter_gets(linestr, rsfp, (prevlen = SvCUR(linestr)))) == Nullch) {
if (minus_n || minus_p) {
- sv_setpv(linestr,minus_p ? ";}continue{print" : "");
+ sv_setpv(linestr,minus_p ?
+ ";}continue{print or die qq(-p destination: $!\\n)" :
+ "");
sv_catpv(linestr,";}");
minus_n = minus_p = 0;
}
PerlIO_clearerr(rsfp);
else
(void)PerlIO_close(rsfp);
+ if (e_fp == rsfp)
+ e_fp = Nullfp;
rsfp = Nullfp;
return s;
}
bufend = s + SvCUR(linestr);
s = bufptr;
incline(s);
- if (perldb && curstash != debstash) {
+ if (PERLDB_LINE && curstash != debstash) {
SV *sv = NEWSV(85,0);
sv_upgrade(sv, SVt_PVMG);
}
static void
-check_uni() {
+check_uni(void) {
char *s;
char ch;
char *t;
#define UNI(f) return uni(f,s)
static int
-uni(f,s)
-I32 f;
-char *s;
+uni(I32 f, char *s)
{
yylval.ival = f;
expect = XTERM;
char *s;
#endif /* CAN_PROTOTYPE */
{
+ dTHR;
yylval.ival = f;
CLINE;
expect = x;
}
static void
-force_next(type)
-I32 type;
+force_next(I32 type)
{
nexttype[nexttoke] = type;
nexttoke++;
}
static char *
-force_word(start,token,check_keyword,allow_pack,allow_tick)
-register char *start;
-int token;
-int check_keyword;
-int allow_pack;
-int allow_tick;
+force_word(register char *start, int token, int check_keyword, int allow_pack, int allow_tick)
{
register char *s;
STRLEN len;
(allow_pack && *s == ':') ||
(allow_tick && *s == '\'') )
{
- s = scan_word(s, tokenbuf, allow_pack, &len);
+ s = scan_word(s, tokenbuf, sizeof tokenbuf, allow_pack, &len);
if (check_keyword && keyword(tokenbuf, len))
return start;
if (token == METHOD) {
}
static void
-force_ident(s, kind)
-register char *s;
-int kind;
+force_ident(register char *s, int kind)
{
if (s && *s) {
- OP* op = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0));
- nextval[nexttoke].opval = op;
+ OP* o = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0));
+ nextval[nexttoke].opval = o;
force_next(WORD);
if (kind) {
- op->op_private = OPpCONST_ENTERED;
+ dTHR; /* just for in_eval */
+ o->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 */
}
static char *
-force_version(s)
-char *s;
+force_version(char *s)
{
OP *version = Nullop;
}
static SV *
-q(sv)
-SV *sv;
+q(SV *sv)
{
register char *s;
register char *send;
}
static I32
-sublex_start()
+sublex_start(void)
{
register I32 op_type = yylval.ival;
}
static I32
-sublex_push()
+sublex_push(void)
{
+ dTHR;
push_scope();
lex_state = sublex_info.super_state;
}
static I32
-sublex_done()
+sublex_done(void)
{
if (!lex_starts++) {
expect = XOPERATOR;
}
static char *
-scan_const(start)
-char *start;
+scan_const(char *start)
{
register char *send = bufend;
SV *sv = NEWSV(93, send - start);
register char *d = SvPVX(sv);
bool dorange = FALSE;
I32 len;
- char *leave =
+ char *leaveit =
lex_inpat
? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]} \t\n\r\f\v#"
: (lex_inwhat & OP_TRANS)
}
if (*s == '\\' && s+1 < send) {
s++;
- if (*s && strchr(leave, *s)) {
+ if (*s && strchr(leaveit, *s)) {
*d++ = '\\';
*d++ = *s++;
continue;
/* This is the one truly awful dwimmer necessary to conflate C and sed. */
static int
-intuit_more(s)
-register char *s;
+intuit_more(register char *s)
{
if (lex_brackets)
return TRUE;
char seen[256];
unsigned char un_char = 0, last_un_char;
char *send = strchr(s,']');
- char tmpbuf[512];
+ char tmpbuf[sizeof tokenbuf * 4];
if (!send) /* has to be an expression */
return TRUE;
case '$':
weight -= seen[un_char] * 10;
if (isALNUM(s[1])) {
- scan_ident(s,send,tmpbuf,FALSE);
+ scan_ident(s, send, tmpbuf, sizeof tmpbuf, FALSE);
if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV))
weight -= 100;
else
}
static int
-intuit_method(start,gv)
-char *start;
-GV *gv;
+intuit_method(char *start, GV *gv)
{
char *s = start + (*start == '$');
- char tmpbuf[1024];
+ char tmpbuf[sizeof tokenbuf];
STRLEN len;
GV* indirgv;
if (!GvCVu(gv))
gv = 0;
}
- s = scan_word(s, tmpbuf, TRUE, &len);
+ s = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len);
if (*start == '$') {
if (gv || last_lop_op == OP_PRINT || isUPPER(*tokenbuf))
return 0;
}
static char*
-incl_perldb()
+incl_perldb(void)
{
if (perldb) {
char *pdb = getenv("PERL5DB");
static int filter_debug = 0;
SV *
-filter_add(funcp, datasv)
- filter_t funcp;
- SV *datasv;
+filter_add(filter_t funcp, SV *datasv)
{
if (!funcp){ /* temporary handy debugging hack to be deleted */
filter_debug = atoi((char*)datasv);
/* Delete most recently added instance of this filter function. */
void
-filter_del(funcp)
- filter_t funcp;
+filter_del(filter_t funcp)
{
if (filter_debug)
warn("filter_del func %p", funcp);
/* Invoke the n'th filter function for the current rsfp. */
I32
-filter_read(idx, buf_sv, maxlen)
- int idx;
- SV *buf_sv;
- int maxlen; /* 0 = read one text line */
+filter_read(int idx, SV *buf_sv, int maxlen)
+
+
+ /* 0 = read one text line */
{
filter_t funcp;
SV *datasv = NULL;
}
static char *
-filter_gets(sv,fp, append)
-register SV *sv;
-register PerlIO *fp;
-STRLEN append;
+filter_gets(register SV *sv, register FILE *fp, STRLEN append)
{
if (rsfp_filters) {
EXT int yychar; /* last token */
int
-yylex()
+yylex(void)
{
+ dTHR;
register char *s;
register char *d;
register I32 tmp;
return PRIVATEREF;
}
- if (!strchr(tokenbuf,':') && (tmp = pad_findmy(tokenbuf))) {
- if (last_lop_op == OP_SORT &&
- tokenbuf[0] == '$' &&
- (tokenbuf[1] == 'a' || tokenbuf[1] == 'b')
- && !tokenbuf[2])
+ if (!strchr(tokenbuf,':')) {
+#ifdef USE_THREADS
+ /* Check for single character per-thread magicals */
+ if (tokenbuf[0] == '$' && tokenbuf[2] == '\0'
+ && !isALPHA(tokenbuf[1]) /* Rule out obvious non-magicals */
+ && (tmp = find_thread_magical(&tokenbuf[1])) != NOT_IN_PAD)
{
- for (d = in_eval ? oldoldbufptr : linestart;
- d < bufend && *d != '\n';
- d++)
+ yylval.opval = newOP(OP_THREADSV, 0);
+ yylval.opval->op_targ = tmp;
+ return PRIVATEREF;
+ }
+#endif /* USE_THREADS */
+ if ((tmp = pad_findmy(tokenbuf)) != NOT_IN_PAD) {
+ if (last_lop_op == OP_SORT &&
+ tokenbuf[0] == '$' &&
+ (tokenbuf[1] == 'a' || tokenbuf[1] == 'b')
+ && !tokenbuf[2])
{
- if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) {
- croak("Can't use \"my %s\" in sort comparison",
- tokenbuf);
+ 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;
+ 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, "In string, %s now must be written as \\%s",
- tokenbuf, tokenbuf);
- yyerror(tmpbuf);
- }
+ if (!gv || ((tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv)))
+ yyerror(form("In string, %s now must be written as \\%s",
+ tokenbuf, tokenbuf));
}
yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf+1, 0));
if (lex_dojoin) {
nextval[nexttoke].ival = 0;
force_next(',');
+#ifdef USE_THREADS
+ nextval[nexttoke].opval = newOP(OP_THREADSV, 0);
+ nextval[nexttoke].opval->op_targ = find_thread_magical("\"");
+ force_next(PRIVATEREF);
+#else
force_ident("\"", '$');
+#endif /* USE_THREADS */
nextval[nexttoke].ival = 0;
force_next('$');
nextval[nexttoke].ival = 0;
if (gv)
GvIMPORTED_AV_on(gv);
if (minus_F) {
- char *tmpbuf1;
- New(201, tmpbuf1, strlen(splitstr) * 2 + 20, char);
if (strchr("/'\"", *splitstr)
&& strchr(splitstr + 1, *splitstr))
- sprintf(tmpbuf1, "@F=split(%s);", splitstr);
+ sv_catpvf(linestr, "@F=split(%s);", splitstr);
else {
char delim;
s = "'~#\200\1'"; /* surely one char is unused...*/
while (s[1] && strchr(splitstr, *s)) s++;
delim = *s;
- sprintf(tmpbuf1, "@F=split(%s%c",
- "q" + (delim == '\''), delim);
- d = tmpbuf1 + strlen(tmpbuf1);
- for (s = splitstr; *s; ) {
+ sv_catpvf(linestr, "@F=split(%s%c",
+ "q" + (delim == '\''), delim);
+ for (s = splitstr; *s; s++) {
if (*s == '\\')
- *d++ = '\\';
- *d++ = *s++;
+ sv_catpvn(linestr, "\\", 1);
+ sv_catpvn(linestr, s, 1);
}
- sprintf(d, "%c);", delim);
+ sv_catpvf(linestr, "%c);", delim);
}
- sv_catpv(linestr,tmpbuf1);
- Safefree(tmpbuf1);
}
else
sv_catpv(linestr,"@F=split(' ');");
sv_catpv(linestr, "\n");
oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
bufend = SvPVX(linestr) + SvCUR(linestr);
- if (perldb && curstash != debstash) {
+ if (PERLDB_LINE && curstash != debstash) {
SV *sv = NEWSV(85,0);
sv_upgrade(sv, SVt_PVMG);
PerlIO_clearerr(rsfp);
else
(void)PerlIO_close(rsfp);
+ if (e_fp == rsfp)
+ e_fp = Nullfp;
rsfp = Nullfp;
}
if (!in_eval && (minus_n || minus_p)) {
incline(s);
} while (doextract);
oldoldbufptr = oldbufptr = bufptr = linestart = s;
- if (perldb && curstash != debstash) {
+ if (PERLDB_LINE && curstash != debstash) {
SV *sv = NEWSV(85,0);
sv_upgrade(sv, SVt_PVMG);
}
d = moreswitches(d);
} while (d);
- if (perldb && !oldpdb ||
+ if (PERLDB_LINE && !oldpdb ||
( minus_n || minus_p ) && !(oldn || oldp) )
/* if we have already added "LINE: while (<>) {",
we must not do it again */
oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
bufend = SvPVX(linestr) + SvCUR(linestr);
preambled = FALSE;
- if (perldb)
+ if (PERLDB_LINE)
(void)gv_fetchfile(origfilename);
goto retry;
}
case '*':
if (expect != XOPERATOR) {
- s = scan_ident(s, bufend, tokenbuf, TRUE);
+ s = scan_ident(s, bufend, tokenbuf, sizeof tokenbuf, TRUE);
expect = XOPERATOR;
force_ident(tokenbuf, '*');
if (!*tokenbuf)
Mop(OP_MODULO);
}
tokenbuf[0] = '%';
- s = scan_ident(s, bufend, tokenbuf+1, TRUE);
+ s = scan_ident(s, bufend, tokenbuf + 1, sizeof tokenbuf - 1, TRUE);
if (!tokenbuf[1]) {
if (s == bufend)
yyerror("Final % should be \\% or %name");
d++;
}
if (d < bufend && isIDFIRST(*d)) {
- d = scan_word(d, tokenbuf + 1, FALSE, &len);
+ d = scan_word(d, tokenbuf + 1, sizeof tokenbuf - 1,
+ FALSE, &len);
while (d < bufend && (*d == ' ' || *d == '\t'))
d++;
if (*d == '}') {
s = skipspace(s);
if (*s == '}')
OPERATOR(HASHBRACK);
- if (isALPHA(*s)) {
- for (t = s; t < bufend && isALNUM(*t); t++) ;
+ /* This hack serves to disambiguate a pair of curlies
+ * as being a block or an anon hash. Normally, expectation
+ * determines that, but in cases where we're not in a
+ * position to expect anything in particular (like inside
+ * eval"") we have to resolve the ambiguity. This code
+ * covers the case where the first term in the curlies is a
+ * quoted string. Most other cases need to be explicitly
+ * disambiguated by prepending a `+' before the opening
+ * curly in order to force resolution as an anon hash.
+ *
+ * XXX should probably propagate the outer expectation
+ * into eval"" to rely less on this hack, but that could
+ * potentially break current behavior of eval"".
+ * GSAR 97-07-21
+ */
+ t = s;
+ if (*s == '\'' || *s == '"' || *s == '`') {
+ /* common case: get past first string, handling escapes */
+ for (t++; t < bufend && *t != *s;)
+ if (*t++ == '\\' && (*t == '\\' || *t == *s))
+ t++;
+ t++;
}
- else if (*s == '\'' || *s == '"') {
- t = strchr(s+1,*s);
- if (!t++)
- t = s;
+ else if (*s == 'q') {
+ if (++t < bufend
+ && (!isALNUM(*t)
+ || ((*t == 'q' || *t == 'x') && ++t < bufend
+ && !isALNUM(*t)))) {
+ char *tmps;
+ char open, close, term;
+ I32 brackets = 1;
+
+ while (t < bufend && isSPACE(*t))
+ t++;
+ term = *t;
+ open = term;
+ if (term && (tmps = strchr("([{< )]}> )]}>",term)))
+ term = tmps[5];
+ close = term;
+ if (open == close)
+ for (t++; t < bufend; t++) {
+ if (*t == '\\' && t+1 < bufend && open != '\\')
+ t++;
+ else if (*t == open)
+ break;
+ }
+ else
+ for (t++; t < bufend; t++) {
+ if (*t == '\\' && t+1 < bufend)
+ t++;
+ else if (*t == close && --brackets <= 0)
+ break;
+ else if (*t == open)
+ brackets++;
+ }
+ }
+ t++;
+ }
+ else if (isALPHA(*s)) {
+ for (t++; t < bufend && isALNUM(*t); t++) ;
}
- else
- t = s;
while (t < bufend && isSPACE(*t))
t++;
- if ((*t == ',' && !isLOWER(*s)) || (*t == '=' && t[1] == '>'))
+ /* if comma follows first term, call it an anon hash */
+ /* XXX it could be a comma expression with loop modifiers */
+ if (t < bufend && ((*t == ',' && (*s == 'q' || !isLOWER(*s)))
+ || (*t == '=' && t[1] == '>')))
OPERATOR(HASHBRACK);
if (expect == XREF)
expect = XTERM;
BAop(OP_BIT_AND);
}
- s = scan_ident(s-1, bufend, tokenbuf, TRUE);
+ s = scan_ident(s - 1, bufend, tokenbuf, sizeof tokenbuf, TRUE);
if (*tokenbuf) {
expect = XOPERATOR;
force_ident(tokenbuf, '&');
if (expect == XOPERATOR)
no_op("Array length", bufptr);
tokenbuf[0] = '@';
- s = scan_ident(s+1, bufend, tokenbuf+1, FALSE);
+ s = scan_ident(s + 1, bufend, tokenbuf + 1, sizeof tokenbuf - 1,
+ FALSE);
if (!tokenbuf[1])
PREREF(DOLSHARP);
expect = XOPERATOR;
if (expect == XOPERATOR)
no_op("Scalar", bufptr);
tokenbuf[0] = '$';
- s = scan_ident(s, bufend, tokenbuf+1, FALSE);
+ s = scan_ident(s, bufend, tokenbuf + 1, sizeof tokenbuf - 1, FALSE);
if (!tokenbuf[1]) {
if (s == bufend)
yyerror("Final $ should be \\$ or $name");
if (dowarn && strEQ(tokenbuf+1, "SIG") &&
(t = strchr(s, '}')) && (t = strchr(t, '=')))
{
- char tmpbuf[1024];
+ char tmpbuf[sizeof tokenbuf];
STRLEN len;
for (t++; isSPACE(*t); t++) ;
if (isIDFIRST(*t)) {
- t = scan_word(t, tmpbuf, TRUE, &len);
+ t = scan_word(t, tmpbuf, sizeof tmpbuf, TRUE, &len);
if (*t != '(' && perl_get_cv(tmpbuf, FALSE))
warn("You need to quote \"%s\"", tmpbuf);
}
else if (strchr("&*<%", *s) && isIDFIRST(s[1]))
expect = XTERM; /* e.g. print $fh &sub */
else if (isIDFIRST(*s)) {
- char tmpbuf[1024];
- scan_word(s, tmpbuf, TRUE, &len);
- if (keyword(tmpbuf, len))
- expect = XTERM; /* e.g. print $fh length() */
+ char tmpbuf[sizeof tokenbuf];
+ scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len);
+ if (tmp = keyword(tmpbuf, len)) {
+ /* binary operators exclude handle interpretations */
+ switch (tmp) {
+ case -KEY_x:
+ case -KEY_eq:
+ case -KEY_ne:
+ case -KEY_gt:
+ case -KEY_lt:
+ case -KEY_ge:
+ case -KEY_le:
+ case -KEY_cmp:
+ break;
+ default:
+ expect = XTERM; /* e.g. print $fh length() */
+ break;
+ }
+ }
else {
GV *gv = gv_fetchpv(tmpbuf, FALSE, SVt_PVCV);
if (gv && GvCVu(gv))
if (expect == XOPERATOR)
no_op("Array", s);
tokenbuf[0] = '@';
- s = scan_ident(s, bufend, tokenbuf+1, FALSE);
+ s = scan_ident(s, bufend, tokenbuf + 1, sizeof tokenbuf - 1, FALSE);
if (!tokenbuf[1]) {
if (s == bufend)
yyerror("Final @ should be \\@ or @name");
case 'y': case 'Y':
case 'z': case 'Z':
- keylookup:
+ keylookup: {
+ GV *gv = Nullgv;
+ GV **gvp = 0;
+
bufptr = s;
- s = scan_word(s, tokenbuf, FALSE, &len);
+ s = scan_word(s, tokenbuf, sizeof tokenbuf, FALSE, &len);
/* Some keywords can be followed by any delimiter, including ':' */
tmp = (len == 1 && strchr("msyq", tokenbuf[0]) ||
}
if (tmp < 0) { /* second-class keyword? */
- GV* gv;
- if (expect != XOPERATOR &&
- (*s != ':' || s[1] != ':') &&
- (gv = gv_fetchpv(tokenbuf, FALSE, SVt_PVCV)) &&
- GvIMPORTED_CV(gv))
+ if (expect != XOPERATOR && (*s != ':' || s[1] != ':') &&
+ (((gv = gv_fetchpv(tokenbuf, FALSE, SVt_PVCV)) &&
+ GvCVu(gv) && GvIMPORTED_CV(gv)) ||
+ ((gvp = (GV**)hv_fetch(globalstash,tokenbuf,len,FALSE)) &&
+ (gv = *gvp) != (GV*)&sv_undef &&
+ GvCVu(gv) && GvIMPORTED_CV(gv))))
{
- tmp = 0;
+ tmp = 0; /* overridden by importation */
+ }
+ else if (gv && !gvp
+ && -tmp==KEY_lock /* XXX generalizable kludge */
+ && !hv_fetch(GvHVn(incgv), "Thread.pm", 9, FALSE))
+ {
+ tmp = 0; /* any sub overrides "weak" keyword */
+ }
+ else {
+ tmp = -tmp; gv = Nullgv; gvp = 0;
}
- else
- tmp = -tmp;
}
reserved_word:
default: /* not a keyword */
just_a_word: {
- GV *gv;
+ SV *sv;
char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]);
/* Get the rest if it looks like a package qualifier */
if (*s == '\'' || *s == ':' && s[1] == ':') {
- s = scan_word(s, tokenbuf + len, TRUE, &len);
+ s = scan_word(s, tokenbuf + len, sizeof tokenbuf - len,
+ TRUE, &len);
if (!len)
croak("Bad name after %s::", tokenbuf);
}
/* Look for a subroutine with this name in current package. */
- gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV);
+ if (gvp) {
+ sv = newSVpv("CORE::GLOBAL::",14);
+ sv_catpv(sv,tokenbuf);
+ }
+ else
+ sv = newSVpv(tokenbuf,0);
+ if (!gv)
+ gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV);
/* Presume this is going to be a bareword of some sort. */
CLINE;
- yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
+ yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
yylval.opval->op_private = OPpCONST_BARE;
/* See if it's the indirect object for a list operator. */
(oldoldbufptr == last_lop || oldoldbufptr == last_uni) &&
/* NO SKIPSPACE BEFORE HERE! */
(expect == XREF ||
- (opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) )
+ ((opargs[last_lop_op] >> OASHIFT)& 7) == OA_FILEREF) )
{
bool immediate_paren = *s == '(';
s = skipspace(s);
if (*s == '(') {
CLINE;
+ if (gv && GvCVu(gv)) {
+ for (d = s + 1; *d == ' ' || *d == '\t'; d++) ;
+ if (*d == ')' && (sv = cv_const_sv(GvCV(gv)))) {
+ s = d + 1;
+ goto its_constant;
+ }
+ }
nextval[nexttoke].opval = yylval.opval;
expect = XOPERATOR;
force_next(WORD);
/* Not a method, so call it a subroutine (if defined) */
if (gv && GvCVu(gv)) {
- CV* cv = GvCV(gv);
- if (*s == '(') {
- nextval[nexttoke].opval = yylval.opval;
- expect = XTERM;
- force_next(WORD);
- yylval.ival = 0;
- TOKEN('&');
- }
+ CV* cv;
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);
- }
+ cv = GvCV(gv);
+ if ((sv = cv_const_sv(cv))) {
+ its_constant:
+ 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. */
}
case KEY___FILE__:
+ yylval.opval = (OP*)newSVOP(OP_CONST, 0,
+ newSVsv(GvSV(curcop->cop_filegv)));
+ TERM(THING);
+
case KEY___LINE__:
- if (tokenbuf[2] == 'L')
- (void)sprintf(tokenbuf,"%ld",(long)curcop->cop_line);
- else
- strcpy(tokenbuf, SvPVX(GvSV(curcop->cop_filegv)));
- yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
+ yylval.opval = (OP*)newSVOP(OP_CONST, 0,
+ newSVpvf("%ld", (long)curcop->cop_line));
TERM(THING);
case KEY___PACKAGE__:
/*SUPPRESS 560*/
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);
+ gv = gv_fetchpv(form("%s::DATA", pname), TRUE, SVt_PVIO);
GvMULTI_on(gv);
if (!GvIO(gv))
GvIOp(gv) = newIO();
case KEY_DESTROY:
case KEY_BEGIN:
case KEY_END:
+ case KEY_INIT:
if (expect == XSTATE) {
s = bufptr;
goto really_sub;
if (*s == ':' && s[1] == ':') {
s += 2;
d = s;
- s = scan_word(s, tokenbuf, FALSE, &len);
+ s = scan_word(s, tokenbuf, sizeof tokenbuf, FALSE, &len);
tmp = keyword(tokenbuf, len);
if (tmp < 0)
tmp = -tmp;
case KEY_listen:
LOP(OP_LISTEN,XTERM);
+ case KEY_lock:
+ UNI(OP_LOCK);
+
case KEY_lstat:
UNI(OP_LSTAT);
case KEY_my:
in_my = TRUE;
+ s = skipspace(s);
+ if (isIDFIRST(*s)) {
+ s = scan_word(s, tokenbuf, sizeof tokenbuf, TRUE, &len);
+ in_my_stash = gv_stashpv(tokenbuf, FALSE);
+ if (!in_my_stash) {
+ char tmpbuf[1024];
+ bufptr = s;
+ sprintf(tmpbuf, "No such class %.1000s", tokenbuf);
+ yyerror(tmpbuf);
+ }
+ }
OPERATOR(MY);
case KEY_next:
s = skipspace(s);
if (isIDFIRST(*s) || *s == '\'' || *s == ':') {
- char tmpbuf[128];
+ char tmpbuf[sizeof tokenbuf];
expect = XBLOCK;
- d = scan_word(s, tmpbuf, TRUE, &len);
+ d = scan_word(s, tmpbuf, sizeof tmpbuf, TRUE, &len);
if (strchr(tmpbuf, ':'))
sv_setpv(subname, tmpbuf);
else {
case KEY_sysopen:
LOP(OP_SYSOPEN,XTERM);
+ case KEY_sysseek:
+ LOP(OP_SYSSEEK,XTERM);
+
case KEY_sysread:
LOP(OP_SYSREAD,XTERM);
s = scan_trans(s);
TERM(sublex_start());
}
- }
+ }}
}
I32
-keyword(d, len)
-register char *d;
-I32 len;
+keyword(register char *d, I32 len)
{
switch (*d) {
case '_':
case 4:
if (strEQ(d,"grep")) return KEY_grep;
if (strEQ(d,"goto")) return KEY_goto;
- if (strEQ(d,"glob")) return -KEY_glob;
+ if (strEQ(d,"glob")) return KEY_glob;
break;
case 6:
if (strEQ(d,"gmtime")) return -KEY_gmtime;
case 'h':
if (strEQ(d,"hex")) return -KEY_hex;
break;
+ case 'I':
+ if (strEQ(d,"INIT")) return KEY_INIT;
+ break;
case 'i':
switch (len) {
case 2:
case 4:
if (strEQ(d,"last")) return KEY_last;
if (strEQ(d,"link")) return -KEY_link;
+ if (strEQ(d,"lock")) return -KEY_lock;
break;
case 5:
if (strEQ(d,"local")) return KEY_local;
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;
+ if (strEQ(d,"sysopen")) return -KEY_sysopen;
+ if (strEQ(d,"sysread")) return -KEY_sysread;
+ if (strEQ(d,"sysseek")) return -KEY_sysseek;
break;
case 8:
if (strEQ(d,"syswrite")) return -KEY_syswrite;
}
static void
-checkcomma(s,name,what)
-register char *s;
-char *name;
-char *what;
+checkcomma(register char *s, char *name, char *what)
{
char *w;
}
if (*w)
for (; *w && isSPACE(*w); w++) ;
- if (!*w || !strchr(";|})]oa!=", *w)) /* an advisory hack only... */
+ if (!*w || !strchr(";|})]oaiuw!=", *w)) /* an advisory hack only... */
warn("%s (...) interpreted as function",name);
}
while (s < bufend && isSPACE(*s))
}
static char *
-scan_word(s, dest, allow_package, slp)
-register char *s;
-char *dest;
-int allow_package;
-STRLEN *slp;
+scan_word(register char *s, char *dest, STRLEN destlen, int allow_package, STRLEN *slp)
{
register char *d = dest;
+ register char *e = d + destlen - 3; /* two-character token, ending NUL */
for (;;) {
+ if (d >= e)
+ croak(ident_too_long);
if (isALNUM(*s))
*d++ = *s++;
else if (*s == '\'' && allow_package && isIDFIRST(s[1])) {
}
static char *
-scan_ident(s,send,dest,ck_uni)
-register char *s;
-register char *send;
-char *dest;
-I32 ck_uni;
+scan_ident(register char *s, register char *send, char *dest, STRLEN destlen, I32 ck_uni)
{
register char *d;
+ register char *e;
char *bracket = 0;
char funny = *s++;
if (isSPACE(*s))
s = skipspace(s);
d = dest;
+ e = d + destlen - 3; /* two-character token, ending NUL */
if (isDIGIT(*s)) {
- while (isDIGIT(*s))
+ while (isDIGIT(*s)) {
+ if (d >= e)
+ croak(ident_too_long);
*d++ = *s++;
+ }
}
else {
for (;;) {
+ if (d >= e)
+ croak(ident_too_long);
if (isALNUM(*s))
*d++ = *s++;
else if (*s == '\'' && isIDFIRST(s[1])) {
lex_state = LEX_INTERPEND;
if (funny == '#')
funny = '@';
- if (dowarn &&
+ if (dowarn && lex_state == LEX_NORMAL &&
(keyword(dest, d - dest) || perl_get_cv(dest, FALSE)))
warn("Ambiguous use of %c{%s} resolved to %c%s",
funny, dest, funny, dest);
return s;
}
-void pmflag(pmfl,ch)
-U16* pmfl;
-int ch;
+void pmflag(U16 *pmfl, int ch)
{
if (ch == 'i')
*pmfl |= PMf_FOLD;
else if (ch == 'g')
*pmfl |= PMf_GLOBAL;
+ else if (ch == 'c')
+ *pmfl |= PMf_CONTINUE;
else if (ch == 'o')
*pmfl |= PMf_KEEP;
else if (ch == 'm')
}
static char *
-scan_pat(start)
-char *start;
+scan_pat(char *start)
{
PMOP *pm;
char *s;
pm = (PMOP*)newPMOP(OP_MATCH, 0);
if (multi_open == '?')
pm->op_pmflags |= PMf_ONCE;
- while (*s && strchr("iogmsx", *s))
+ while (*s && strchr("iogcmsx", *s))
pmflag(&pm->op_pmflags,*s++);
pm->op_pmpermflags = pm->op_pmflags;
}
static char *
-scan_subst(start)
-char *start;
+scan_subst(char *start)
{
register char *s;
register PMOP *pm;
multi_start = first_start; /* so whole substitution is taken together */
pm = (PMOP*)newPMOP(OP_SUBST, 0);
- while (*s && strchr("iogmsex", *s)) {
+ while (*s && strchr("iogcmsex", *s)) {
if (*s == 'e') {
s++;
es++;
}
void
-hoistmust(pm)
-register PMOP *pm;
+hoistmust(register PMOP *pm)
{
+ dTHR;
if (!pm->op_pmshort && pm->op_pmregexp->regstart &&
(!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH)
) {
}
static char *
-scan_trans(start)
-char *start;
+scan_trans(char *start)
{
register char* s;
- OP *op;
+ OP *o;
short *tbl;
I32 squash;
- I32 delete;
+ I32 Delete;
I32 complement;
yylval.ival = OP_NULL;
}
New(803,tbl,256,short);
- op = newPVOP(OP_TRANS, 0, (char*)tbl);
+ o = newPVOP(OP_TRANS, 0, (char*)tbl);
- complement = delete = squash = 0;
+ complement = Delete = squash = 0;
while (*s == 'c' || *s == 'd' || *s == 's') {
if (*s == 'c')
complement = OPpTRANS_COMPLEMENT;
else if (*s == 'd')
- delete = OPpTRANS_DELETE;
+ Delete = OPpTRANS_DELETE;
else
squash = OPpTRANS_SQUASH;
s++;
}
- op->op_private = delete|squash|complement;
+ o->op_private = Delete|squash|complement;
- lex_op = op;
+ lex_op = o;
yylval.ival = OP_TRANS;
return s;
}
static char *
-scan_heredoc(s)
-register char *s;
+scan_heredoc(register char *s)
{
+ dTHR;
SV *herewas;
I32 op_type = OP_SCALAR;
I32 len;
SV *tmpstr;
char term;
register char *d;
+ register char *e;
char *peek;
int outer = (rsfp && !lex_inwhat);
s += 2;
d = tokenbuf;
+ e = tokenbuf + sizeof tokenbuf - 1;
if (!outer)
*d++ = '\n';
for (peek = s; *peek == ' ' || *peek == '\t'; peek++) ;
if (*peek && strchr("`'\"",*peek)) {
s = peek;
term = *s++;
- s = cpytill(d,s,bufend,term,&len);
+ s = delimcpy(d, e, s, bufend, term, &len);
+ d += len;
if (s < bufend)
s++;
- d += len;
}
else {
if (*s == '\\')
term = '"';
if (!isALNUM(*s))
deprecate("bare << to mean <<\"\"");
- while (isALNUM(*s))
- *d++ = *s++;
- } /* assuming tokenbuf won't clobber */
+ for (; isALNUM(*s); s++) {
+ if (d < e)
+ *d++ = *s;
+ }
+ }
+ if (d >= tokenbuf + sizeof tokenbuf - 1)
+ croak("Delimiter for here document is too long");
*d++ = '\n';
*d = '\0';
len = d - tokenbuf;
missingterm(tokenbuf);
}
curcop->cop_line++;
- if (perldb && curstash != debstash) {
+ if (PERLDB_LINE && curstash != debstash) {
SV *sv = NEWSV(88,0);
sv_upgrade(sv, SVt_PVMG);
}
static char *
-scan_inputsymbol(start)
-char *start;
+scan_inputsymbol(char *start)
{
register char *s = start;
register char *d;
+ register char *e;
I32 len;
d = tokenbuf;
- s = cpytill(d, s+1, bufend, '>', &len);
- if (s < bufend)
- s++;
- else
+ e = tokenbuf + sizeof tokenbuf;
+ s = delimcpy(d, e, s + 1, bufend, '>', &len);
+ if (len >= sizeof tokenbuf)
+ croak("Excessively long <> operator");
+ if (s >= bufend)
croak("Unterminated <> operator");
-
+ s++;
if (*d == '$' && d[1]) d++;
while (*d && (isALNUM(*d) || *d == '\'' || *d == ':'))
d++;
(void)strcpy(d,"ARGV");
if (*d == '$') {
I32 tmp;
- if (tmp = pad_findmy(d)) {
- OP *op = newOP(OP_PADSV, 0);
- op->op_targ = tmp;
- lex_op = (OP*)newUNOP(OP_READLINE, 0, newUNOP(OP_RV2GV, 0, op));
+ if ((tmp = pad_findmy(d)) != NOT_IN_PAD) {
+ OP *o = newOP(OP_PADSV, 0);
+ o->op_targ = tmp;
+ lex_op = (OP*)newUNOP(OP_READLINE, 0, newUNOP(OP_RV2GV, 0, o));
}
else {
GV *gv = gv_fetchpv(d+1,TRUE, SVt_PV);
}
static char *
-scan_str(start)
-char *start;
+scan_str(char *start)
{
+ dTHR;
SV *sv;
char *tmps;
register char *s = start;
for (; s < bufend; s++,to++) {
if (*s == '\n' && !rsfp)
curcop->cop_line++;
- if (*s == '\\' && s+1 < bufend && term != '\\') {
- if (s[1] == term)
+ if (*s == '\\' && s+1 < bufend) {
+ if ((s[1] == multi_open) || (s[1] == multi_close))
s++;
else
*to++ = *s++;
}
- else if (*s == term && --brackets <= 0)
+ else if (*s == multi_close && --brackets <= 0)
break;
else if (*s == multi_open)
brackets++;
return Nullch;
}
curcop->cop_line++;
- if (perldb && curstash != debstash) {
+ if (PERLDB_LINE && curstash != debstash) {
SV *sv = NEWSV(88,0);
sv_upgrade(sv, SVt_PVMG);
}
char *
-scan_num(start)
-char *start;
+scan_num(char *start)
{
register char *s = start;
register char *d;
+ register char *e;
I32 tryiv;
double value;
SV *sv;
I32 floatit;
char *lastub = 0;
+ static char number_too_long[] = "Number too long";
switch (*s) {
default:
case '6': case '7': case '8': case '9': case '.':
decimal:
d = tokenbuf;
+ e = tokenbuf + sizeof tokenbuf - 6; /* room for various punctuation */
floatit = FALSE;
while (isDIGIT(*s) || *s == '_') {
if (*s == '_') {
warn("Misplaced _ in number");
lastub = ++s;
}
- else
+ else {
+ if (d >= e)
+ croak(number_too_long);
*d++ = *s++;
+ }
}
if (dowarn && lastub && s - lastub != 3)
warn("Misplaced _ in number");
if (*s == '.' && s[1] != '.') {
floatit = TRUE;
*d++ = *s++;
- while (isDIGIT(*s) || *s == '_') {
- if (*s == '_')
- s++;
- else
- *d++ = *s++;
+ for (; isDIGIT(*s) || *s == '_'; s++) {
+ if (d >= e)
+ croak(number_too_long);
+ if (*s != '_')
+ *d++ = *s;
}
}
if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) {
*d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */
if (*s == '+' || *s == '-')
*d++ = *s++;
- while (isDIGIT(*s))
+ while (isDIGIT(*s)) {
+ if (d >= e)
+ croak(number_too_long);
*d++ = *s++;
+ }
}
*d = '\0';
sv = NEWSV(92,0);
}
static char *
-scan_formline(s)
-register char *s;
+scan_formline(register char *s)
{
+ dTHR;
register char *eol;
register char *t;
SV *stuff = newSVpv("",0);
}
static void
-set_csh()
+set_csh(void)
{
#ifdef CSH
if (!cshlen)
}
I32
-start_subparse(is_format, flags)
-I32 is_format;
-U32 flags;
+start_subparse(I32 is_format, U32 flags)
{
+ dTHR;
I32 oldsavestack_ix = savestack_ix;
CV* outsidecv = compcv;
AV* comppadlist;
CvFLAGS(compcv) |= flags;
comppad = newAV();
+ av_push(comppad, Nullsv);
+ curpad = AvARRAY(comppad);
comppad_name = newAV();
comppad_name_fill = 0;
min_intro_pending = 0;
- av_push(comppad, Nullsv);
- curpad = AvARRAY(comppad);
padix = 0;
subline = curcop->cop_line;
+#ifdef USE_THREADS
+ av_store(comppad_name, 0, newSVpv("@_", 2));
+ curpad[0] = (SV*)newAV();
+ SvPADMY_on(curpad[0]); /* XXX Needed? */
+ CvOWNER(compcv) = 0;
+ New(666, CvMUTEXP(compcv), 1, perl_mutex);
+ MUTEX_INIT(CvMUTEXP(compcv));
+#endif /* USE_THREADS */
comppadlist = newAV();
AvREAL_off(comppadlist);
av_store(comppadlist, 1, (SV*)comppad);
CvPADLIST(compcv) = comppadlist;
- CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc((SV*)outsidecv);
+ CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc(outsidecv);
+#ifdef USE_THREADS
+ CvOWNER(compcv) = 0;
+ New(666, CvMUTEXP(compcv), 1, perl_mutex);
+ MUTEX_INIT(CvMUTEXP(compcv));
+#endif /* USE_THREADS */
return oldsavestack_ix;
}
int
-yywarn(s)
-char *s;
+yywarn(char *s)
{
+ dTHR;
--error_count;
in_eval |= 2;
yyerror(s);
}
int
-yyerror(s)
-char *s;
+yyerror(char *s)
{
- char wbuf[40];
+ dTHR;
char *where = NULL;
char *context = NULL;
int contlen = -1;
+ SV *msg;
if (!yychar || (yychar == ';' && !rsfp))
where = "at EOF";
else
where = "within string";
}
- else if (yychar < 32)
- (void)sprintf(where = wbuf, "next char ^%c", toCTRL(yychar));
- else if (isPRINT_LC(yychar))
- (void)sprintf(where = wbuf, "next char %c", yychar);
- else
- (void)sprintf(where = wbuf, "next char \\%03o", yychar & 255);
- if (contlen == -1)
- contlen = strlen(where);
- (void)sprintf(buf, "%s at %s line %d, ",
- s, SvPVX(GvSV(curcop->cop_filegv)), curcop->cop_line);
+ else {
+ SV *where_sv = sv_2mortal(newSVpv("next char ", 0));
+ if (yychar < 32)
+ sv_catpvf(where_sv, "^%c", toCTRL(yychar));
+ else if (isPRINT_LC(yychar))
+ sv_catpvf(where_sv, "%c", yychar);
+ else
+ sv_catpvf(where_sv, "\\%03o", yychar & 255);
+ where = SvPVX(where_sv);
+ }
+ msg = sv_2mortal(newSVpv(s, 0));
+ sv_catpvf(msg, " at %_ line %ld, ",
+ GvSV(curcop->cop_filegv), (long)curcop->cop_line);
if (context)
- (void)sprintf(buf+strlen(buf), "near \"%.*s\"\n", contlen, context);
+ sv_catpvf(msg, "near \"%.*s\"\n", contlen, context);
else
- (void)sprintf(buf+strlen(buf), "%s\n", where);
+ sv_catpvf(msg, "%s\n", where);
if (multi_start < multi_end && (U32)(curcop->cop_line - multi_end) <= 1) {
- sprintf(buf+strlen(buf),
+ sv_catpvf(msg,
" (Might be a runaway multi-line %c%c string starting on line %ld)\n",
(int)multi_open,(int)multi_close,(long)multi_start);
multi_end = 0;
}
if (in_eval & 2)
- warn("%s",buf);
+ warn("%_", msg);
else if (in_eval)
- sv_catpv(GvSV(errgv),buf);
+ sv_catsv(ERRSV, msg);
else
- PerlIO_printf(PerlIO_stderr(), "%s",buf);
+ PerlIO_write(PerlIO_stderr(), SvPVX(msg), SvCUR(msg));
if (++error_count >= 10)
- croak("%s has too many errors.\n",
- SvPVX(GvSV(curcop->cop_filegv)));
+ croak("%_ has too many errors.\n", GvSV(curcop->cop_filegv));
in_my = 0;
+ in_my_stash = Nullhv;
return 0;
}
+
projects / p5sagit/p5-mst-13.2.git / blobdiff