3 * Copyright (c) 1991-1994, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "It all comes from here, the stench and the peril." --Frodo
17 static void check_uni _((void));
18 static void force_next _((I32 type));
19 static char *force_version _((char *start));
20 static char *force_word _((char *start, int token, int check_keyword, int allow_pack, int allow_tick));
21 static SV *q _((SV *sv));
22 static char *scan_const _((char *start));
23 static char *scan_formline _((char *s));
24 static char *scan_heredoc _((char *s));
25 static char *scan_ident _((char *s, char *send, char *dest, I32 ck_uni));
26 static char *scan_inputsymbol _((char *start));
27 static char *scan_pat _((char *start));
28 static char *scan_str _((char *start));
29 static char *scan_subst _((char *start));
30 static char *scan_trans _((char *start));
31 static char *scan_word _((char *s, char *dest, int allow_package, STRLEN *slp));
32 static char *skipspace _((char *s));
33 static void checkcomma _((char *s, char *name, char *what));
34 static void force_ident _((char *s, int kind));
35 static void incline _((char *s));
36 static int intuit_method _((char *s, GV *gv));
37 static int intuit_more _((char *s));
38 static I32 lop _((I32 f, expectation x, char *s));
39 static void missingterm _((char *s));
40 static void no_op _((char *what, char *s));
41 static void set_csh _((void));
42 static I32 sublex_done _((void));
43 static I32 sublex_push _((void));
44 static I32 sublex_start _((void));
46 static int uni _((I32 f, char *s));
48 static char * filter_gets _((SV *sv, PerlIO *fp, STRLEN append));
49 static void restore_rsfp _((void *f));
51 static char *linestart; /* beg. of most recently read line */
53 static char pending_ident; /* pending identifier lookup */
56 I32 super_state; /* lexer state to save */
57 I32 sub_inwhat; /* "lex_inwhat" to use */
58 OP *sub_op; /* "lex_op" to use */
61 /* The following are arranged oddly so that the guard on the switch statement
62 * can get by with a single comparison (if the compiler is smart enough).
66 #define LEX_INTERPNORMAL 9
67 #define LEX_INTERPCASEMOD 8
68 #define LEX_INTERPPUSH 7
69 #define LEX_INTERPSTART 6
70 #define LEX_INTERPEND 5
71 #define LEX_INTERPENDMAYBE 4
72 #define LEX_INTERPCONCAT 3
73 #define LEX_INTERPCONST 2
74 #define LEX_FORMLINE 1
75 #define LEX_KNOWNEXT 0
84 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
86 # include <unistd.h> /* Needed for execv() */
99 #define CLINE (copline = (curcop->cop_line < copline ? curcop->cop_line : copline))
101 #define TOKEN(retval) return (bufptr = s,(int)retval)
102 #define OPERATOR(retval) return (expect = XTERM,bufptr = s,(int)retval)
103 #define AOPERATOR(retval) return ao((expect = XTERM,bufptr = s,(int)retval))
104 #define PREBLOCK(retval) return (expect = XBLOCK,bufptr = s,(int)retval)
105 #define PRETERMBLOCK(retval) return (expect = XTERMBLOCK,bufptr = s,(int)retval)
106 #define PREREF(retval) return (expect = XREF,bufptr = s,(int)retval)
107 #define TERM(retval) return (CLINE, expect = XOPERATOR,bufptr = s,(int)retval)
108 #define LOOPX(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LOOPEX)
109 #define FTST(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)UNIOP)
110 #define FUN0(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC0)
111 #define FUN1(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC1)
112 #define BOop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITOROP))
113 #define BAop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITANDOP))
114 #define SHop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)SHIFTOP))
115 #define PWop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)POWOP))
116 #define PMop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MATCHOP)
117 #define Aop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)ADDOP))
118 #define Mop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)MULOP))
119 #define Eop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)EQOP)
120 #define Rop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)RELOP)
122 /* This bit of chicanery makes a unary function followed by
123 * a parenthesis into a function with one argument, highest precedence.
125 #define UNI(f) return(yylval.ival = f, \
128 last_uni = oldbufptr, \
130 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
132 #define UNIBRACK(f) return(yylval.ival = f, \
134 last_uni = oldbufptr, \
135 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
137 /* grandfather return to old style */
138 #define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP)
144 if (*bufptr == '=') {
146 if (toketype == ANDAND)
147 yylval.ival = OP_ANDASSIGN;
148 else if (toketype == OROR)
149 yylval.ival = OP_ORASSIGN;
161 char *oldbp = bufptr;
162 bool is_first = (oldbufptr == linestart);
164 sprintf(tmpbuf, "%s found where operator expected", what);
167 warn("\t(Missing semicolon on previous line?)\n");
168 else if (oldoldbufptr && isIDFIRST(*oldoldbufptr)) {
170 for (t = oldoldbufptr; *t && (isALNUM(*t) || *t == ':'); t++) ;
171 if (t < bufptr && isSPACE(*t))
172 warn("\t(Do you need to predeclare %.*s?)\n",
173 t - oldoldbufptr, oldoldbufptr);
177 warn("\t(Missing operator before %.*s?)\n", s - oldbp, oldbp);
188 char *nl = strrchr(s,'\n');
192 else if (multi_close < 32 || multi_close == 127) {
194 tmpbuf[1] = toCTRL(multi_close);
200 *tmpbuf = multi_close;
204 q = strchr(s,'"') ? '\'' : '"';
205 croak("Can't find string terminator %c%s%c anywhere before EOF",q,s,q);
213 warn("Use of %s is deprecated", s);
219 deprecate("comma-less variable list");
230 SAVEI32(lex_brackets);
231 SAVEI32(lex_fakebrack);
232 SAVEI32(lex_casemods);
237 SAVEI16(curcop->cop_line);
241 SAVEPPTR(oldoldbufptr);
244 SAVEPPTR(lex_brackstack);
245 SAVEPPTR(lex_casestack);
246 SAVEDESTRUCTOR(restore_rsfp, rsfp);
248 lex_state = LEX_NORMAL;
253 New(899, lex_brackstack, 120, char);
254 New(899, lex_casestack, 12, char);
255 SAVEFREEPV(lex_brackstack);
256 SAVEFREEPV(lex_casestack);
258 *lex_casestack = '\0';
262 SvREFCNT_dec(lex_stuff);
265 SvREFCNT_dec(lex_repl);
270 if (SvREADONLY(linestr))
271 linestr = sv_2mortal(newSVsv(linestr));
272 s = SvPV(linestr, len);
273 if (len && s[len-1] != ';') {
274 if (!(SvFLAGS(linestr) & SVs_TEMP))
275 linestr = sv_2mortal(newSVsv(linestr));
276 sv_catpvn(linestr, "\n;", 2);
279 oldoldbufptr = oldbufptr = bufptr = linestart = SvPVX(linestr);
280 bufend = bufptr + SvCUR(linestr);
282 rs = newSVpv("\n", 1);
296 PerlIO *fp = (PerlIO*)f;
298 if (rsfp == PerlIO_stdin())
299 PerlIO_clearerr(rsfp);
300 else if (rsfp && (rsfp != fp))
317 while (*s == ' ' || *s == '\t') s++;
318 if (strnEQ(s, "line ", 5)) {
327 while (*s == ' ' || *s == '\t')
329 if (*s == '"' && (t = strchr(s+1, '"')))
333 return; /* false alarm */
334 for (t = s; !isSPACE(*t); t++) ;
339 curcop->cop_filegv = gv_fetchfile(s);
341 curcop->cop_filegv = gv_fetchfile(origfilename);
343 curcop->cop_line = atoi(n)-1;
350 if (lex_formbrack && lex_brackets <= lex_formbrack) {
351 while (s < bufend && (*s == ' ' || *s == '\t'))
357 while (s < bufend && isSPACE(*s))
359 if (s < bufend && *s == '#') {
360 while (s < bufend && *s != '\n')
365 if (s < bufend || !rsfp || lex_state != LEX_NORMAL)
367 if ((s = filter_gets(linestr, rsfp, (prevlen = SvCUR(linestr)))) == Nullch) {
368 if (minus_n || minus_p) {
369 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
370 sv_catpv(linestr,";}");
371 minus_n = minus_p = 0;
374 sv_setpv(linestr,";");
375 oldoldbufptr = oldbufptr = bufptr = s = linestart = SvPVX(linestr);
376 bufend = SvPVX(linestr) + SvCUR(linestr);
377 if (preprocess && !in_eval)
378 (void)my_pclose(rsfp);
379 else if ((PerlIO*)rsfp == PerlIO_stdin())
380 PerlIO_clearerr(rsfp);
382 (void)PerlIO_close(rsfp);
386 linestart = bufptr = s + prevlen;
387 bufend = s + SvCUR(linestr);
390 if (perldb && curstash != debstash) {
391 SV *sv = NEWSV(85,0);
393 sv_upgrade(sv, SVt_PVMG);
394 sv_setpvn(sv,bufptr,bufend-bufptr);
395 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
406 if (oldoldbufptr != last_uni)
408 while (isSPACE(*last_uni))
410 for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ;
411 if ((t = strchr(s, '(')) && t < bufptr)
415 warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni);
422 #define UNI(f) return uni(f,s)
432 last_uni = oldbufptr;
443 #endif /* CRIPPLED_CC */
445 #define LOP(f,x) return lop(f,x,s)
457 last_lop = oldbufptr;
474 nexttype[nexttoke] = type;
476 if (lex_state != LEX_KNOWNEXT) {
477 lex_defer = lex_state;
479 lex_state = LEX_KNOWNEXT;
484 force_word(start,token,check_keyword,allow_pack,allow_tick)
485 register char *start;
494 start = skipspace(start);
497 (allow_pack && *s == ':') ||
498 (allow_tick && *s == '\'') )
500 s = scan_word(s, tokenbuf, allow_pack, &len);
501 if (check_keyword && keyword(tokenbuf, len))
503 if (token == METHOD) {
513 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(tokenbuf,0));
514 nextval[nexttoke].opval->op_private |= OPpCONST_BARE;
526 OP* op = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0));
527 nextval[nexttoke].opval = op;
530 op->op_private = OPpCONST_ENTERED;
531 /* XXX see note in pp_entereval() for why we forgo typo
532 warnings if the symbol must be introduced in an eval.
534 gv_fetchpv(s, in_eval ? GV_ADDMULTI : TRUE,
535 kind == '$' ? SVt_PV :
536 kind == '@' ? SVt_PVAV :
537 kind == '%' ? SVt_PVHV :
548 OP *version = Nullop;
552 /* default VERSION number -- GBARR */
557 for( d=s, c = 1; isDIGIT(*d) || *d == '_' || (*d == '.' && c--); d++);
558 if((*d == ';' || isSPACE(*d)) && *(skipspace(d)) != ',') {
560 /* real VERSION number -- GBARR */
561 version = yylval.opval;
565 /* NOTE: The parser sees the package name and the VERSION swapped */
566 nextval[nexttoke].opval = version;
584 s = SvPV_force(sv, len);
588 while (s < send && *s != '\\')
595 if (s + 1 < send && (s[1] == '\\'))
596 s++; /* all that, just for this */
601 SvCUR_set(sv, d - SvPVX(sv));
609 register I32 op_type = yylval.ival;
611 if (op_type == OP_NULL) {
612 yylval.opval = lex_op;
616 if (op_type == OP_CONST || op_type == OP_READLINE) {
617 yylval.opval = (OP*)newSVOP(op_type, 0, q(lex_stuff));
622 sublex_info.super_state = lex_state;
623 sublex_info.sub_inwhat = op_type;
624 sublex_info.sub_op = lex_op;
625 lex_state = LEX_INTERPPUSH;
629 yylval.opval = lex_op;
642 lex_state = sublex_info.super_state;
644 SAVEI32(lex_brackets);
645 SAVEI32(lex_fakebrack);
646 SAVEI32(lex_casemods);
651 SAVEI16(curcop->cop_line);
654 SAVEPPTR(oldoldbufptr);
657 SAVEPPTR(lex_brackstack);
658 SAVEPPTR(lex_casestack);
663 bufend = bufptr = oldbufptr = oldoldbufptr = linestart = SvPVX(linestr);
664 bufend += SvCUR(linestr);
670 New(899, lex_brackstack, 120, char);
671 New(899, lex_casestack, 12, char);
672 SAVEFREEPV(lex_brackstack);
673 SAVEFREEPV(lex_casestack);
675 *lex_casestack = '\0';
677 lex_state = LEX_INTERPCONCAT;
678 curcop->cop_line = multi_start;
680 lex_inwhat = sublex_info.sub_inwhat;
681 if (lex_inwhat == OP_MATCH || lex_inwhat == OP_SUBST)
682 lex_inpat = sublex_info.sub_op;
694 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0));
698 if (lex_casemods) { /* oops, we've got some unbalanced parens */
699 lex_state = LEX_INTERPCASEMOD;
703 /* Is there a right-hand side to take care of? */
704 if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) {
707 bufend = bufptr = oldbufptr = oldoldbufptr = linestart = SvPVX(linestr);
708 bufend += SvCUR(linestr);
714 *lex_casestack = '\0';
716 if (SvCOMPILED(lex_repl)) {
717 lex_state = LEX_INTERPNORMAL;
721 lex_state = LEX_INTERPCONCAT;
727 bufend = SvPVX(linestr);
728 bufend += SvCUR(linestr);
738 register char *send = bufend;
739 SV *sv = NEWSV(93, send - start);
740 register char *s = start;
741 register char *d = SvPVX(sv);
742 bool dorange = FALSE;
746 ? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]} \t\n\r\f\v#"
747 : (lex_inwhat & OP_TRANS)
751 while (s < send || dorange) {
752 if (lex_inwhat == OP_TRANS) {
757 SvGROW(sv, SvLEN(sv) + 256);
761 for (i = (U8)*d; i <= max; i++)
766 else if (*s == '-' && s+1 < send && s != start) {
771 else if (*s == '(' && lex_inpat && s[1] == '?' && s[2] == '#') {
772 while (s < send && *s != ')')
775 else if (*s == '#' && lex_inpat &&
776 ((PMOP*)lex_inpat)->op_pmflags & PMf_EXTENDED) {
777 while (s+1 < send && *s != '\n')
780 else if (*s == '@' && s[1] && (isALNUM(s[1]) || strchr(":'{$", s[1])))
782 else if (*s == '$') {
783 if (!lex_inpat) /* not a regexp, so $ must be var */
785 if (s + 1 < send && !strchr(")| \n\t", s[1]))
786 break; /* in regexp, $ might be tail anchor */
788 if (*s == '\\' && s+1 < send) {
790 if (*s && strchr(leave, *s)) {
795 if (lex_inwhat == OP_SUBST && !lex_inpat &&
796 isDIGIT(*s) && *s != '0' && !isDIGIT(s[1]))
799 warn("\\%c better written as $%c", *s, *s);
803 if (lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) {
809 if (lex_inwhat == OP_TRANS) {
817 case '0': case '1': case '2': case '3':
818 case '4': case '5': case '6': case '7':
819 *d++ = scan_oct(s, 3, &len);
823 *d++ = scan_hex(++s, 2, &len);
859 SvCUR_set(sv, d - SvPVX(sv));
862 if (SvCUR(sv) + 5 < SvLEN(sv)) {
863 SvLEN_set(sv, SvCUR(sv) + 1);
864 Renew(SvPVX(sv), SvLEN(sv), char);
867 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
873 /* This is the one truly awful dwimmer necessary to conflate C and sed. */
880 if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{'))
882 if (*s != '{' && *s != '[')
887 /* In a pattern, so maybe we have {n,m}. */
904 /* On the other hand, maybe we have a character class */
907 if (*s == ']' || *s == '^')
910 int weight = 2; /* let's weigh the evidence */
912 unsigned char un_char = 0, last_un_char;
913 char *send = strchr(s,']');
916 if (!send) /* has to be an expression */
922 else if (isDIGIT(*s)) {
924 if (isDIGIT(s[1]) && s[2] == ']')
930 for (; s < send; s++) {
931 last_un_char = un_char;
932 un_char = (unsigned char)*s;
937 weight -= seen[un_char] * 10;
939 scan_ident(s,send,tmpbuf,FALSE);
940 if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV))
945 else if (*s == '$' && s[1] &&
946 strchr("[#!%*<>()-=",s[1])) {
947 if (/*{*/ strchr("])} =",s[2]))
956 if (strchr("wds]",s[1]))
958 else if (seen['\''] || seen['"'])
960 else if (strchr("rnftbxcav",s[1]))
962 else if (isDIGIT(s[1])) {
964 while (s[1] && isDIGIT(s[1]))
974 if (strchr("aA01! ",last_un_char))
976 if (strchr("zZ79~",s[1]))
980 if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) &&
981 isALPHA(*s) && s[1] && isALPHA(s[1])) {
986 if (keyword(tmpbuf, d - tmpbuf))
989 if (un_char == last_un_char + 1)
991 weight -= seen[un_char];
996 if (weight >= 0) /* probably a character class */
1004 intuit_method(start,gv)
1008 char *s = start + (*start == '$');
1019 s = scan_word(s, tmpbuf, TRUE, &len);
1020 if (*start == '$') {
1021 if (gv || last_lop_op == OP_PRINT || isUPPER(*tokenbuf))
1026 return *s == '(' ? FUNCMETH : METHOD;
1028 if (!keyword(tmpbuf, len)) {
1029 indirgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVCV);
1030 if (indirgv && GvCVu(indirgv))
1032 /* filehandle or package name makes it a method */
1033 if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) {
1035 if ((bufend - s) >= 2 && *s == '=' && *(s+1) == '>')
1036 return 0; /* no assumptions -- "=>" quotes bearword */
1037 nextval[nexttoke].opval =
1038 (OP*)newSVOP(OP_CONST, 0,
1040 nextval[nexttoke].opval->op_private =
1045 return *s == '(' ? FUNCMETH : METHOD;
1055 char *pdb = getenv("PERL5DB");
1059 return "BEGIN { require 'perl5db.pl' }";
1065 /* Encoded script support. filter_add() effectively inserts a
1066 * 'pre-processing' function into the current source input stream.
1067 * Note that the filter function only applies to the current source file
1068 * (e.g., it will not affect files 'require'd or 'use'd by this one).
1070 * The datasv parameter (which may be NULL) can be used to pass
1071 * private data to this instance of the filter. The filter function
1072 * can recover the SV using the FILTER_DATA macro and use it to
1073 * store private buffers and state information.
1075 * The supplied datasv parameter is upgraded to a PVIO type
1076 * and the IoDIRP field is used to store the function pointer.
1077 * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for
1078 * private use must be set using malloc'd pointers.
1080 static int filter_debug = 0;
1083 filter_add(funcp, datasv)
1087 if (!funcp){ /* temporary handy debugging hack to be deleted */
1088 filter_debug = atoi((char*)datasv);
1092 rsfp_filters = newAV();
1095 if (!SvUPGRADE(datasv, SVt_PVIO))
1096 die("Can't upgrade filter_add data to SVt_PVIO");
1097 IoDIRP(datasv) = (DIR*)funcp; /* stash funcp into spare field */
1099 warn("filter_add func %lx (%s)", funcp, SvPV(datasv,na));
1100 av_unshift(rsfp_filters, 1);
1101 av_store(rsfp_filters, 0, datasv) ;
1106 /* Delete most recently added instance of this filter function. */
1112 warn("filter_del func %lx", funcp);
1113 if (!rsfp_filters || AvFILL(rsfp_filters)<0)
1115 /* if filter is on top of stack (usual case) just pop it off */
1116 if (IoDIRP(FILTER_DATA(0)) == (void*)funcp){
1117 /* sv_free(av_pop(rsfp_filters)); */
1118 sv_free(av_shift(rsfp_filters));
1122 /* we need to search for the correct entry and clear it */
1123 die("filter_del can only delete in reverse order (currently)");
1127 /* Invoke the n'th filter function for the current rsfp. */
1129 filter_read(idx, buf_sv, maxlen)
1132 int maxlen; /* 0 = read one text line */
1139 if (idx > AvFILL(rsfp_filters)){ /* Any more filters? */
1140 /* Provide a default input filter to make life easy. */
1141 /* Note that we append to the line. This is handy. */
1143 warn("filter_read %d: from rsfp\n", idx);
1147 int old_len = SvCUR(buf_sv) ;
1149 /* ensure buf_sv is large enough */
1150 SvGROW(buf_sv, old_len + maxlen) ;
1151 if ((len = PerlIO_read(rsfp, SvPVX(buf_sv) + old_len, maxlen)) <= 0){
1152 if (PerlIO_error(rsfp))
1153 return -1; /* error */
1155 return 0 ; /* end of file */
1157 SvCUR_set(buf_sv, old_len + len) ;
1160 if (sv_gets(buf_sv, rsfp, SvCUR(buf_sv)) == NULL) {
1161 if (PerlIO_error(rsfp))
1162 return -1; /* error */
1164 return 0 ; /* end of file */
1167 return SvCUR(buf_sv);
1169 /* Skip this filter slot if filter has been deleted */
1170 if ( (datasv = FILTER_DATA(idx)) == &sv_undef){
1172 warn("filter_read %d: skipped (filter deleted)\n", idx);
1173 return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */
1175 /* Get function pointer hidden within datasv */
1176 funcp = (filter_t)IoDIRP(datasv);
1178 warn("filter_read %d: via function %lx (%s)\n",
1179 idx, funcp, SvPV(datasv,na));
1180 /* Call function. The function is expected to */
1181 /* call "FILTER_READ(idx+1, buf_sv)" first. */
1182 /* Return: <0:error, =0:eof, >0:not eof */
1183 return (*funcp)(idx, buf_sv, maxlen);
1187 filter_gets(sv,fp, append)
1189 register PerlIO *fp;
1195 SvCUR_set(sv, 0); /* start with empty line */
1196 if (FILTER_READ(0, sv, 0) > 0)
1197 return ( SvPVX(sv) ) ;
1202 return (sv_gets(sv, fp, append));
1208 static char* exp_name[] =
1209 { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "TERMBLOCK" };
1212 EXT int yychar; /* last token */
1222 if (pending_ident) {
1223 char pit = pending_ident;
1227 if (strchr(tokenbuf,':'))
1228 croak(no_myglob,tokenbuf);
1229 yylval.opval = newOP(OP_PADANY, 0);
1230 yylval.opval->op_targ = pad_allocmy(tokenbuf);
1234 if (!strchr(tokenbuf,':') && (tmp = pad_findmy(tokenbuf))) {
1235 if (last_lop_op == OP_SORT &&
1236 tokenbuf[0] == '$' &&
1237 (tokenbuf[1] == 'a' || tokenbuf[1] == 'b')
1240 for (d = in_eval ? oldoldbufptr : linestart;
1241 d < bufend && *d != '\n';
1244 if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) {
1245 croak("Can't use \"my %s\" in sort comparison",
1251 yylval.opval = newOP(OP_PADANY, 0);
1252 yylval.opval->op_targ = tmp;
1256 /* Force them to make up their mind on "@foo". */
1257 if (pit == '@' && lex_state != LEX_NORMAL && !lex_brackets) {
1258 GV *gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV);
1259 if (!gv || ((tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) {
1261 sprintf(tmpbuf, "Literal %s now requires backslash", tokenbuf);
1266 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf+1, 0));
1267 yylval.opval->op_private = OPpCONST_ENTERED;
1268 gv_fetchpv(tokenbuf+1, in_eval ? GV_ADDMULTI : TRUE,
1269 ((tokenbuf[0] == '$') ? SVt_PV
1270 : (tokenbuf[0] == '@') ? SVt_PVAV
1275 switch (lex_state) {
1277 case LEX_NORMAL: /* Some compilers will produce faster */
1278 case LEX_INTERPNORMAL: /* code if we comment these out. */
1284 yylval = nextval[nexttoke];
1286 lex_state = lex_defer;
1287 expect = lex_expect;
1288 lex_defer = LEX_NORMAL;
1290 return(nexttype[nexttoke]);
1292 case LEX_INTERPCASEMOD:
1294 if (bufptr != bufend && *bufptr != '\\')
1295 croak("panic: INTERPCASEMOD");
1297 if (bufptr == bufend || bufptr[1] == 'E') {
1300 oldmod = lex_casestack[--lex_casemods];
1301 lex_casestack[lex_casemods] = '\0';
1302 if (bufptr != bufend && strchr("LUQ", oldmod)) {
1304 lex_state = LEX_INTERPCONCAT;
1308 if (bufptr != bufend)
1310 lex_state = LEX_INTERPCONCAT;
1315 if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3))
1316 tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */
1317 if (strchr("LU", *s) &&
1318 (strchr(lex_casestack, 'L') || strchr(lex_casestack, 'U')))
1320 lex_casestack[--lex_casemods] = '\0';
1323 if (lex_casemods > 10) {
1324 char* newlb = Renew(lex_casestack, lex_casemods + 2, char);
1325 if (newlb != lex_casestack) {
1327 lex_casestack = newlb;
1330 lex_casestack[lex_casemods++] = *s;
1331 lex_casestack[lex_casemods] = '\0';
1332 lex_state = LEX_INTERPCONCAT;
1333 nextval[nexttoke].ival = 0;
1336 nextval[nexttoke].ival = OP_LCFIRST;
1338 nextval[nexttoke].ival = OP_UCFIRST;
1340 nextval[nexttoke].ival = OP_LC;
1342 nextval[nexttoke].ival = OP_UC;
1344 nextval[nexttoke].ival = OP_QUOTEMETA;
1346 croak("panic: yylex");
1358 case LEX_INTERPPUSH:
1359 return sublex_push();
1361 case LEX_INTERPSTART:
1362 if (bufptr == bufend)
1363 return sublex_done();
1365 lex_dojoin = (*bufptr == '@');
1366 lex_state = LEX_INTERPNORMAL;
1368 nextval[nexttoke].ival = 0;
1370 force_ident("\"", '$');
1371 nextval[nexttoke].ival = 0;
1373 nextval[nexttoke].ival = 0;
1375 nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */
1386 case LEX_INTERPENDMAYBE:
1387 if (intuit_more(bufptr)) {
1388 lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */
1396 lex_state = LEX_INTERPCONCAT;
1400 case LEX_INTERPCONCAT:
1403 croak("panic: INTERPCONCAT");
1405 if (bufptr == bufend)
1406 return sublex_done();
1408 if (SvIVX(linestr) == '\'') {
1409 SV *sv = newSVsv(linestr);
1412 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
1416 s = scan_const(bufptr);
1418 lex_state = LEX_INTERPCASEMOD;
1420 lex_state = LEX_INTERPSTART;
1424 nextval[nexttoke] = yylval;
1437 lex_state = LEX_NORMAL;
1438 s = scan_formline(bufptr);
1445 oldoldbufptr = oldbufptr;
1448 PerlIO_printf(PerlIO_stderr(), "### Tokener expecting %s at %s\n", exp_name[expect], s);
1454 warn("Unrecognized character \\%03o ignored", *s++ & 255);
1458 goto fake_eof; /* emulate EOF on ^D or ^Z */
1464 yyerror("Missing right bracket");
1468 goto retry; /* ignore stray nulls */
1471 if (!in_eval && !preambled) {
1473 sv_setpv(linestr,incl_perldb());
1475 sv_catpv(linestr,";");
1477 while(AvFILL(preambleav) >= 0) {
1478 SV *tmpsv = av_shift(preambleav);
1479 sv_catsv(linestr, tmpsv);
1480 sv_catpv(linestr, ";");
1483 sv_free((SV*)preambleav);
1486 if (minus_n || minus_p) {
1487 sv_catpv(linestr, "LINE: while (<>) {");
1489 sv_catpv(linestr,"chomp;");
1493 if ( splitstr[0] == '/' ||
1494 splitstr[0] == '\'' ||
1495 splitstr[0] == '"' )
1496 sprintf( tmpbuf1, "@F=split(%s);", splitstr );
1498 sprintf( tmpbuf1, "@F=split('%s');", splitstr );
1499 sv_catpv(linestr,tmpbuf1);
1502 sv_catpv(linestr,"@F=split(' ');");
1505 sv_catpv(linestr, "\n");
1506 oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
1507 bufend = SvPVX(linestr) + SvCUR(linestr);
1508 if (perldb && curstash != debstash) {
1509 SV *sv = NEWSV(85,0);
1511 sv_upgrade(sv, SVt_PVMG);
1512 sv_setsv(sv,linestr);
1513 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1518 if ((s = filter_gets(linestr, rsfp, 0)) == Nullch) {
1521 if (preprocess && !in_eval)
1522 (void)my_pclose(rsfp);
1523 else if ((PerlIO *)rsfp == PerlIO_stdin())
1524 PerlIO_clearerr(rsfp);
1526 (void)PerlIO_close(rsfp);
1529 if (!in_eval && (minus_n || minus_p)) {
1530 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
1531 sv_catpv(linestr,";}");
1532 oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
1533 bufend = SvPVX(linestr) + SvCUR(linestr);
1534 minus_n = minus_p = 0;
1537 oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
1538 sv_setpv(linestr,"");
1539 TOKEN(';'); /* not infinite loop because rsfp is NULL now */
1542 if (*s == '#' && s[1] == '!' && instr(s,"perl"))
1545 /* Incest with pod. */
1546 if (*s == '=' && strnEQ(s, "=cut", 4)) {
1547 sv_setpv(linestr, "");
1548 oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
1549 bufend = SvPVX(linestr) + SvCUR(linestr);
1554 } while (doextract);
1555 oldoldbufptr = oldbufptr = bufptr = linestart = s;
1556 if (perldb && curstash != debstash) {
1557 SV *sv = NEWSV(85,0);
1559 sv_upgrade(sv, SVt_PVMG);
1560 sv_setsv(sv,linestr);
1561 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1563 bufend = SvPVX(linestr) + SvCUR(linestr);
1564 if (curcop->cop_line == 1) {
1565 while (s < bufend && isSPACE(*s))
1567 if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */
1571 if (*s == '#' && *(s+1) == '!')
1573 #ifdef ALTERNATE_SHEBANG
1575 static char as[] = ALTERNATE_SHEBANG;
1576 if (*s == as[0] && strnEQ(s, as, sizeof(as) - 1))
1577 d = s + (sizeof(as) - 1);
1579 #endif /* ALTERNATE_SHEBANG */
1583 * HP-UX (at least) sets argv[0] to the script name,
1584 * which makes $^X incorrect. And Digital UNIX and Linux,
1585 * at least, set argv[0] to the basename of the Perl
1586 * interpreter. So, having found "#!", we'll set it right.
1588 SV *x = GvSV(gv_fetchpv("\030", TRUE, SVt_PV));
1592 while (*d == ' ' || *d == '\t')
1596 while (*d && !isSPACE(*d)) {
1600 assert(SvPOK(x) || SvGMAGICAL(x));
1601 if (sv_eq(x, GvSV(curcop->cop_filegv))
1603 && SvCUR(x) == (d - ibase)
1604 && strnEQ(SvPVX(x), ibase, d - ibase)))
1605 sv_setpvn(x, ipath, d - ipath);
1607 * $^X is always tainted, but taintedness must be off
1608 * when parsing code, so forget we ever saw it.
1615 d = instr(s,"perl -");
1617 d = instr(s,"perl");
1618 #ifdef ALTERNATE_SHEBANG
1620 * If the ALTERNATE_SHEBANG on this system starts with a
1621 * character that can be part of a Perl expression, then if
1622 * we see it but not "perl", we're probably looking at the
1623 * start of Perl code, not a request to hand off to some
1624 * other interpreter. Similarly, if "perl" is there, but
1625 * not in the first 'word' of the line, we assume the line
1626 * contains the start of the Perl program.
1627 * This isn't foolproof, but it's generally a good guess.
1629 if (d && *s != '#') {
1631 while (*c && !strchr("; \t\r\n\f\v#", *c))
1634 d = Nullch; /* "perl" not in first word; ignore */
1636 *s = '#'; /* Don't try to parse shebang line */
1642 !instr(s,"indir") &&
1643 instr(origargv[0],"perl"))
1652 while (s < bufend && !isSPACE(*s))
1655 while (s < bufend && isSPACE(*s))
1658 Newz(899,newargv,origargc+3,char*);
1660 while (s < bufend && !isSPACE(*s))
1663 Copy(origargv+1, newargv+2, origargc+1, char*);
1669 croak("Can't exec %s", cmd);
1672 int oldpdb = perldb;
1676 while (*d && !isSPACE(*d)) d++;
1677 while (*d == ' ' || *d == '\t') d++;
1680 while (d = moreswitches(d)) ;
1681 if (perldb && !oldpdb ||
1682 ( minus_n || minus_p ) && !(oldn || oldp) )
1683 /* if we have already added "LINE: while (<>) {",
1684 we must not do it again */
1686 sv_setpv(linestr, "");
1687 oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
1688 bufend = SvPVX(linestr) + SvCUR(linestr);
1691 (void)gv_fetchfile(origfilename);
1698 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1700 lex_state = LEX_FORMLINE;
1704 case ' ': case '\t': case '\f': case '\r': case 013:
1709 if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) {
1711 while (s < d && *s != '\n')
1716 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1718 lex_state = LEX_FORMLINE;
1728 if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) {
1733 while (s < bufend && (*s == ' ' || *s == '\t'))
1736 if (strnEQ(s,"=>",2)) {
1738 warn("Ambiguous use of -%c => resolved to \"-%c\" =>",
1740 s = force_word(bufptr,WORD,FALSE,FALSE,FALSE);
1741 OPERATOR('-'); /* unary minus */
1743 last_uni = oldbufptr;
1744 last_lop_op = OP_FTEREAD; /* good enough */
1746 case 'r': FTST(OP_FTEREAD);
1747 case 'w': FTST(OP_FTEWRITE);
1748 case 'x': FTST(OP_FTEEXEC);
1749 case 'o': FTST(OP_FTEOWNED);
1750 case 'R': FTST(OP_FTRREAD);
1751 case 'W': FTST(OP_FTRWRITE);
1752 case 'X': FTST(OP_FTREXEC);
1753 case 'O': FTST(OP_FTROWNED);
1754 case 'e': FTST(OP_FTIS);
1755 case 'z': FTST(OP_FTZERO);
1756 case 's': FTST(OP_FTSIZE);
1757 case 'f': FTST(OP_FTFILE);
1758 case 'd': FTST(OP_FTDIR);
1759 case 'l': FTST(OP_FTLINK);
1760 case 'p': FTST(OP_FTPIPE);
1761 case 'S': FTST(OP_FTSOCK);
1762 case 'u': FTST(OP_FTSUID);
1763 case 'g': FTST(OP_FTSGID);
1764 case 'k': FTST(OP_FTSVTX);
1765 case 'b': FTST(OP_FTBLK);
1766 case 'c': FTST(OP_FTCHR);
1767 case 't': FTST(OP_FTTTY);
1768 case 'T': FTST(OP_FTTEXT);
1769 case 'B': FTST(OP_FTBINARY);
1770 case 'M': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTMTIME);
1771 case 'A': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTATIME);
1772 case 'C': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTCTIME);
1774 croak("Unrecognized file test: -%c", tmp);
1781 if (expect == XOPERATOR)
1786 else if (*s == '>') {
1789 if (isIDFIRST(*s)) {
1790 s = force_word(s,METHOD,FALSE,TRUE,FALSE);
1798 if (expect == XOPERATOR)
1801 if (isSPACE(*s) || !isSPACE(*bufptr))
1803 OPERATOR('-'); /* unary minus */
1810 if (expect == XOPERATOR)
1815 if (expect == XOPERATOR)
1818 if (isSPACE(*s) || !isSPACE(*bufptr))
1824 if (expect != XOPERATOR) {
1825 s = scan_ident(s, bufend, tokenbuf, TRUE);
1827 force_ident(tokenbuf, '*');
1840 if (expect == XOPERATOR) {
1845 s = scan_ident(s, bufend, tokenbuf+1, TRUE);
1848 yyerror("Final % should be \\% or %name");
1851 pending_ident = '%';
1873 if (last_lop == oldoldbufptr || last_uni == oldoldbufptr)
1874 oldbufptr = oldoldbufptr; /* allow print(STDOUT 123) */
1879 if (curcop->cop_line < copline)
1880 copline = curcop->cop_line;
1891 if (lex_brackets <= 0)
1892 yyerror("Unmatched right bracket");
1895 if (lex_state == LEX_INTERPNORMAL) {
1896 if (lex_brackets == 0) {
1897 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
1898 lex_state = LEX_INTERPEND;
1905 if (lex_brackets > 100) {
1906 char* newlb = Renew(lex_brackstack, lex_brackets + 1, char);
1907 if (newlb != lex_brackstack) {
1909 lex_brackstack = newlb;
1914 if (lex_formbrack) {
1918 if (oldoldbufptr == last_lop)
1919 lex_brackstack[lex_brackets++] = XTERM;
1921 lex_brackstack[lex_brackets++] = XOPERATOR;
1922 OPERATOR(HASHBRACK);
1925 while (s < bufend && (*s == ' ' || *s == '\t'))
1929 if (d < bufend && *d == '-') {
1932 while (d < bufend && (*d == ' ' || *d == '\t'))
1935 if (d < bufend && isIDFIRST(*d)) {
1936 d = scan_word(d, tokenbuf + 1, FALSE, &len);
1937 while (d < bufend && (*d == ' ' || *d == '\t'))
1940 char minus = (tokenbuf[0] == '-');
1942 (keyword(tokenbuf + 1, len) ||
1943 (minus && len == 1 && isALPHA(tokenbuf[1])) ||
1944 perl_get_cv(tokenbuf + 1, FALSE) ))
1945 warn("Ambiguous use of {%s} resolved to {\"%s\"}",
1946 tokenbuf + !minus, tokenbuf + !minus);
1947 s = force_word(s + minus, WORD, FALSE, TRUE, FALSE);
1954 lex_brackstack[lex_brackets++] = XSTATE;
1958 lex_brackstack[lex_brackets++] = XOPERATOR;
1963 if (oldoldbufptr == last_lop)
1964 lex_brackstack[lex_brackets++] = XTERM;
1966 lex_brackstack[lex_brackets++] = XOPERATOR;
1969 OPERATOR(HASHBRACK);
1971 for (t = s; t < bufend && isALNUM(*t); t++) ;
1973 else if (*s == '\'' || *s == '"') {
1980 while (t < bufend && isSPACE(*t))
1982 if ((*t == ',' && !isLOWER(*s)) || (*t == '=' && t[1] == '>'))
1983 OPERATOR(HASHBRACK);
1987 lex_brackstack[lex_brackets-1] = XSTATE;
1993 yylval.ival = curcop->cop_line;
1994 if (isSPACE(*s) || *s == '#')
1995 copline = NOLINE; /* invalidate current command line number */
2000 if (lex_brackets <= 0)
2001 yyerror("Unmatched right bracket");
2003 expect = (expectation)lex_brackstack[--lex_brackets];
2004 if (lex_brackets < lex_formbrack)
2006 if (lex_state == LEX_INTERPNORMAL) {
2007 if (lex_brackets == 0) {
2008 if (lex_fakebrack) {
2009 lex_state = LEX_INTERPEND;
2011 return yylex(); /* ignore fake brackets */
2013 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
2014 lex_state = LEX_INTERPEND;
2017 if (lex_brackets < lex_fakebrack) {
2020 return yylex(); /* ignore fake brackets */
2030 if (expect == XOPERATOR) {
2031 if (dowarn && isALPHA(*s) && bufptr == linestart) {
2039 s = scan_ident(s-1, bufend, tokenbuf, TRUE);
2042 force_ident(tokenbuf, '&');
2046 yylval.ival = (OPpENTERSUB_AMPER<<8);
2065 if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp))
2066 warn("Reversed %c= operator",tmp);
2068 if (expect == XSTATE && isALPHA(tmp) &&
2069 (s == linestart+1 || s[-2] == '\n') )
2071 if (in_eval && !rsfp) {
2076 if (strnEQ(s,"=cut",4)) {
2093 if (lex_brackets < lex_formbrack) {
2095 for (t = s; *t == ' ' || *t == '\t'; t++) ;
2096 if (*t == '\n' || *t == '#') {
2114 if (expect != XOPERATOR) {
2115 if (s[1] != '<' && !strchr(s,'>'))
2118 s = scan_heredoc(s);
2120 s = scan_inputsymbol(s);
2121 TERM(sublex_start());
2126 SHop(OP_LEFT_SHIFT);
2140 SHop(OP_RIGHT_SHIFT);
2149 if (expect == XOPERATOR) {
2150 if (lex_formbrack && lex_brackets == lex_formbrack) {
2153 return ','; /* grandfather non-comma-format format */
2157 if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) {
2158 if (expect == XOPERATOR)
2159 no_op("Array length", bufptr);
2161 s = scan_ident(s+1, bufend, tokenbuf+1, FALSE);
2165 pending_ident = '#';
2169 if (expect == XOPERATOR)
2170 no_op("Scalar", bufptr);
2172 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
2175 yyerror("Final $ should be \\$ or $name");
2179 /* This kludge not intended to be bulletproof. */
2180 if (tokenbuf[1] == '[' && !tokenbuf[2]) {
2181 yylval.opval = newSVOP(OP_CONST, 0,
2182 newSViv((IV)compiling.cop_arybase));
2183 yylval.opval->op_private = OPpCONST_ARYBASE;
2188 if (lex_state == LEX_NORMAL)
2191 if ((expect != XREF || oldoldbufptr == last_lop) && intuit_more(s)) {
2197 isSPACE(*t) || isALNUM(*t) || *t == '$';
2200 bufptr = skipspace(bufptr);
2201 while (t < bufend && *t != ']')
2203 warn("Multidimensional syntax %.*s not supported",
2204 (t - bufptr) + 1, bufptr);
2208 else if (*s == '{') {
2210 if (dowarn && strEQ(tokenbuf+1, "SIG") &&
2211 (t = strchr(s, '}')) && (t = strchr(t, '=')))
2215 for (t++; isSPACE(*t); t++) ;
2216 if (isIDFIRST(*t)) {
2217 t = scan_word(t, tmpbuf, TRUE, &len);
2218 if (*t != '(' && perl_get_cv(tmpbuf, FALSE))
2219 warn("You need to quote \"%s\"", tmpbuf);
2226 if (lex_state == LEX_NORMAL && isSPACE(*d)) {
2227 bool islop = (last_lop == oldoldbufptr);
2228 if (!islop || last_lop_op == OP_GREPSTART)
2230 else if (strchr("$@\"'`q", *s))
2231 expect = XTERM; /* e.g. print $fh "foo" */
2232 else if (strchr("&*<%", *s) && isIDFIRST(s[1]))
2233 expect = XTERM; /* e.g. print $fh &sub */
2234 else if (isDIGIT(*s))
2235 expect = XTERM; /* e.g. print $fh 3 */
2236 else if (*s == '.' && isDIGIT(s[1]))
2237 expect = XTERM; /* e.g. print $fh .3 */
2238 else if (strchr("/?-+", *s) && !isSPACE(s[1]))
2239 expect = XTERM; /* e.g. print $fh -1 */
2240 else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]))
2241 expect = XTERM; /* print $fh <<"EOF" */
2243 pending_ident = '$';
2247 if (expect == XOPERATOR)
2250 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
2253 yyerror("Final @ should be \\@ or @name");
2256 if (lex_state == LEX_NORMAL)
2258 if ((expect != XREF || oldoldbufptr == last_lop) && intuit_more(s)) {
2262 /* Warn about @ where they meant $. */
2264 if (*s == '[' || *s == '{') {
2266 while (*t && (isALNUM(*t) || strchr(" \t$#+-'\"", *t)))
2268 if (*t == '}' || *t == ']') {
2270 bufptr = skipspace(bufptr);
2271 warn("Scalar value %.*s better written as $%.*s",
2272 t-bufptr, bufptr, t-bufptr-1, bufptr+1);
2277 pending_ident = '@';
2280 case '/': /* may either be division or pattern */
2281 case '?': /* may either be conditional or pattern */
2282 if (expect != XOPERATOR) {
2285 TERM(sublex_start());
2293 if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' &&
2294 (s == linestart || s[-1] == '\n') ) {
2299 if (expect == XOPERATOR || !isDIGIT(s[1])) {
2305 yylval.ival = OPf_SPECIAL;
2311 if (expect != XOPERATOR)
2316 case '0': case '1': case '2': case '3': case '4':
2317 case '5': case '6': case '7': case '8': case '9':
2319 if (expect == XOPERATOR)
2325 if (expect == XOPERATOR) {
2326 if (lex_formbrack && lex_brackets == lex_formbrack) {
2329 return ','; /* grandfather non-comma-format format */
2335 missingterm((char*)0);
2336 yylval.ival = OP_CONST;
2337 TERM(sublex_start());
2341 if (expect == XOPERATOR) {
2342 if (lex_formbrack && lex_brackets == lex_formbrack) {
2345 return ','; /* grandfather non-comma-format format */
2351 missingterm((char*)0);
2352 yylval.ival = OP_CONST;
2353 for (d = SvPV(lex_stuff, len); len; len--, d++) {
2354 if (*d == '$' || *d == '@' || *d == '\\') {
2355 yylval.ival = OP_STRINGIFY;
2359 TERM(sublex_start());
2363 if (expect == XOPERATOR)
2364 no_op("Backticks",s);
2366 missingterm((char*)0);
2367 yylval.ival = OP_BACKTICK;
2369 TERM(sublex_start());
2373 if (dowarn && lex_inwhat && isDIGIT(*s))
2374 warn("Can't use \\%c to mean $%c in expression", *s, *s);
2375 if (expect == XOPERATOR)
2376 no_op("Backslash",s);
2380 if (isDIGIT(s[1]) && expect == XOPERATOR) {
2416 s = scan_word(s, tokenbuf, FALSE, &len);
2418 /* Some keywords can be followed by any delimiter, including ':' */
2419 tmp = (len == 1 && strchr("msyq", tokenbuf[0]) ||
2420 len == 2 && ((tokenbuf[0] == 't' && tokenbuf[1] == 'r') ||
2421 (tokenbuf[0] == 'q' &&
2422 strchr("qwx", tokenbuf[1]))));
2424 /* x::* is just a word, unless x is "CORE" */
2425 if (!tmp && *s == ':' && s[1] == ':' && strNE(tokenbuf, "CORE"))
2429 while (d < bufend && isSPACE(*d))
2430 d++; /* no comments skipped here, or s### is misparsed */
2432 /* Is this a label? */
2433 if (!tmp && expect == XSTATE
2434 && d < bufend && *d == ':' && *(d + 1) != ':') {
2436 yylval.pval = savepv(tokenbuf);
2441 /* Check for keywords */
2442 tmp = keyword(tokenbuf, len);
2444 /* Is this a word before a => operator? */
2445 if (strnEQ(d,"=>",2)) {
2447 if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE)))
2448 warn("Ambiguous use of %s => resolved to \"%s\" =>",
2449 tokenbuf, tokenbuf);
2450 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2451 yylval.opval->op_private = OPpCONST_BARE;
2455 if (tmp < 0) { /* second-class keyword? */
2457 if (expect != XOPERATOR &&
2458 (*s != ':' || s[1] != ':') &&
2459 (gv = gv_fetchpv(tokenbuf, FALSE, SVt_PVCV)) &&
2471 default: /* not a keyword */
2474 char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]);
2476 /* Get the rest if it looks like a package qualifier */
2478 if (*s == '\'' || *s == ':' && s[1] == ':') {
2479 s = scan_word(s, tokenbuf + len, TRUE, &len);
2481 croak("Bad name after %s::", tokenbuf);
2484 if (expect == XOPERATOR) {
2485 if (bufptr == linestart) {
2491 no_op("Bare word",s);
2494 /* Look for a subroutine with this name in current package. */
2496 gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV);
2498 /* Presume this is going to be a bareword of some sort. */
2501 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2502 yylval.opval->op_private = OPpCONST_BARE;
2504 /* See if it's the indirect object for a list operator. */
2507 oldoldbufptr < bufptr &&
2508 (oldoldbufptr == last_lop || oldoldbufptr == last_uni) &&
2509 /* NO SKIPSPACE BEFORE HERE! */
2511 (opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) )
2513 bool immediate_paren = *s == '(';
2515 /* (Now we can afford to cross potential line boundary.) */
2518 /* Two barewords in a row may indicate method call. */
2520 if ((isALPHA(*s) || *s == '$') && (tmp=intuit_method(s,gv)))
2523 /* If not a declared subroutine, it's an indirect object. */
2524 /* (But it's an indir obj regardless for sort.) */
2526 if ((last_lop_op == OP_SORT ||
2527 (!immediate_paren && (!gv || !GvCVu(gv))) ) &&
2528 (last_lop_op != OP_MAPSTART && last_lop_op != OP_GREPSTART)){
2529 expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR;
2534 /* If followed by a paren, it's certainly a subroutine. */
2540 nextval[nexttoke].opval = yylval.opval;
2547 /* If followed by var or block, call it a method (unless sub) */
2549 if ((*s == '$' || *s == '{') && (!gv || !GvCVu(gv))) {
2550 last_lop = oldbufptr;
2551 last_lop_op = OP_METHOD;
2555 /* If followed by a bareword, see if it looks like indir obj. */
2557 if ((isALPHA(*s) || *s == '$') && (tmp = intuit_method(s,gv)))
2560 /* Not a method, so call it a subroutine (if defined) */
2562 if (gv && GvCVu(gv)) {
2565 nextval[nexttoke].opval = yylval.opval;
2571 if (lastchar == '-')
2572 warn("Ambiguous use of -%s resolved as -&%s()",
2573 tokenbuf, tokenbuf);
2574 last_lop = oldbufptr;
2575 last_lop_op = OP_ENTERSUB;
2576 /* Check for a constant sub */
2578 SV *sv = cv_const_sv(cv);
2580 SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv);
2581 ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc(sv);
2582 yylval.opval->op_private = 0;
2587 /* Resolve to GV now. */
2588 op_free(yylval.opval);
2589 yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv));
2590 /* Is there a prototype? */
2593 char *proto = SvPV((SV*)cv, len);
2596 if (strEQ(proto, "$"))
2598 if (*proto == '&' && *s == '{') {
2599 sv_setpv(subname,"__ANON__");
2603 nextval[nexttoke].opval = yylval.opval;
2609 if (hints & HINT_STRICT_SUBS &&
2612 last_lop_op != OP_TRUNCATE && /* S/F prototype in opcode.pl */
2613 last_lop_op != OP_ACCEPT &&
2614 last_lop_op != OP_PIPE_OP &&
2615 last_lop_op != OP_SOCKPAIR)
2618 "Bareword \"%s\" not allowed while \"strict subs\" in use",
2623 /* Call it a bare word */
2627 if (lastchar != '-') {
2628 for (d = tokenbuf; *d && isLOWER(*d); d++) ;
2630 warn(warn_reserved, tokenbuf);
2633 if (lastchar && strchr("*%&", lastchar)) {
2634 warn("Operator or semicolon missing before %c%s",
2635 lastchar, tokenbuf);
2636 warn("Ambiguous use of %c resolved as operator %c",
2637 lastchar, lastchar);
2643 case KEY___FILE__: {
2644 if (tokenbuf[2] == 'L')
2645 (void)sprintf(tokenbuf,"%ld",(long)curcop->cop_line);
2647 strcpy(tokenbuf, SvPVX(GvSV(curcop->cop_filegv)));
2648 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2657 if (rsfp && (!in_eval || tokenbuf[2] == 'D')) {
2659 char *pname = "main";
2660 if (tokenbuf[2] == 'D')
2661 pname = HvNAME(curstash ? curstash : defstash);
2662 sprintf(dname,"%s::DATA", pname);
2663 gv = gv_fetchpv(dname,TRUE, SVt_PVIO);
2666 GvIOp(gv) = newIO();
2667 IoIFP(GvIOp(gv)) = rsfp;
2668 #if defined(HAS_FCNTL) && defined(F_SETFD)
2670 int fd = PerlIO_fileno(rsfp);
2671 fcntl(fd,F_SETFD,fd >= 3);
2674 /* Mark this internal pseudo-handle as clean */
2675 IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT;
2677 IoTYPE(GvIOp(gv)) = '|';
2678 else if ((PerlIO*)rsfp == PerlIO_stdin())
2679 IoTYPE(GvIOp(gv)) = '-';
2681 IoTYPE(GvIOp(gv)) = '<';
2691 if (expect == XSTATE) {
2698 if (*s == ':' && s[1] == ':') {
2701 s = scan_word(s, tokenbuf, FALSE, &len);
2702 tmp = keyword(tokenbuf, len);
2716 LOP(OP_ACCEPT,XTERM);
2722 LOP(OP_ATAN2,XTERM);
2731 LOP(OP_BLESS,XTERM);
2740 (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */
2760 LOP(OP_CRYPT,XTERM);
2764 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
2765 if (*d != '0' && isDIGIT(*d))
2766 yywarn("chmod: mode argument is missing initial 0");
2768 LOP(OP_CHMOD,XTERM);
2771 LOP(OP_CHOWN,XTERM);
2774 LOP(OP_CONNECT,XTERM);
2790 s = force_word(s,WORD,FALSE,TRUE,FALSE);
2794 hints |= HINT_BLOCK_SCOPE;
2804 gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV);
2805 LOP(OP_DBMOPEN,XTERM);
2811 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2818 yylval.ival = curcop->cop_line;
2832 expect = (*s == '{') ? XTERMBLOCK : XTERM;
2833 UNIBRACK(OP_ENTEREVAL);
2848 case KEY_endhostent:
2854 case KEY_endservent:
2857 case KEY_endprotoent:
2868 yylval.ival = curcop->cop_line;
2870 if (isIDFIRST(*s)) {
2872 if ((bufend - p) >= 3 &&
2873 strnEQ(p, "my", 2) && isSPACE(*(p + 2)))
2877 croak("Missing $ on loop variable");
2882 LOP(OP_FORMLINE,XTERM);
2888 LOP(OP_FCNTL,XTERM);
2894 LOP(OP_FLOCK,XTERM);
2903 LOP(OP_GREPSTART, *s == '(' ? XTERM : XREF);
2906 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2921 case KEY_getpriority:
2922 LOP(OP_GETPRIORITY,XTERM);
2924 case KEY_getprotobyname:
2927 case KEY_getprotobynumber:
2928 LOP(OP_GPBYNUMBER,XTERM);
2930 case KEY_getprotoent:
2942 case KEY_getpeername:
2943 UNI(OP_GETPEERNAME);
2945 case KEY_gethostbyname:
2948 case KEY_gethostbyaddr:
2949 LOP(OP_GHBYADDR,XTERM);
2951 case KEY_gethostent:
2954 case KEY_getnetbyname:
2957 case KEY_getnetbyaddr:
2958 LOP(OP_GNBYADDR,XTERM);
2963 case KEY_getservbyname:
2964 LOP(OP_GSBYNAME,XTERM);
2966 case KEY_getservbyport:
2967 LOP(OP_GSBYPORT,XTERM);
2969 case KEY_getservent:
2972 case KEY_getsockname:
2973 UNI(OP_GETSOCKNAME);
2975 case KEY_getsockopt:
2976 LOP(OP_GSOCKOPT,XTERM);
2998 yylval.ival = curcop->cop_line;
3002 LOP(OP_INDEX,XTERM);
3008 LOP(OP_IOCTL,XTERM);
3020 s = force_word(s,WORD,TRUE,FALSE,FALSE);
3051 LOP(OP_LISTEN,XTERM);
3058 TERM(sublex_start());
3061 LOP(OP_MAPSTART,XREF);
3064 LOP(OP_MKDIR,XTERM);
3067 LOP(OP_MSGCTL,XTERM);
3070 LOP(OP_MSGGET,XTERM);
3073 LOP(OP_MSGRCV,XTERM);
3076 LOP(OP_MSGSND,XTERM);
3083 s = force_word(s,WORD,TRUE,FALSE,FALSE);
3090 if (expect != XSTATE)
3091 yyerror("\"no\" not allowed in expression");
3092 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3093 s = force_version(s);
3102 if (isIDFIRST(*s)) {
3104 for (d = s; isALNUM(*d); d++) ;
3106 if (strchr("|&*+-=!?:.", *t))
3107 warn("Precedence problem: open %.*s should be open(%.*s)",
3113 yylval.ival = OP_OR;
3123 LOP(OP_OPEN_DIR,XTERM);
3126 checkcomma(s,tokenbuf,"filehandle");
3130 checkcomma(s,tokenbuf,"filehandle");
3149 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3153 LOP(OP_PIPE_OP,XTERM);
3158 missingterm((char*)0);
3159 yylval.ival = OP_CONST;
3160 TERM(sublex_start());
3168 missingterm((char*)0);
3169 if (dowarn && SvLEN(lex_stuff)) {
3170 d = SvPV_force(lex_stuff, len);
3171 for (; len; --len, ++d) {
3173 warn("Possible attempt to separate words with commas");
3177 warn("Possible attempt to put comments in qw() list");
3183 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff));
3187 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(" ",1));
3190 yylval.ival = OP_SPLIT;
3194 last_lop = oldbufptr;
3195 last_lop_op = OP_SPLIT;
3201 missingterm((char*)0);
3202 yylval.ival = OP_STRINGIFY;
3203 if (SvIVX(lex_stuff) == '\'')
3204 SvIVX(lex_stuff) = 0; /* qq'$foo' should intepolate */
3205 TERM(sublex_start());
3210 missingterm((char*)0);
3211 yylval.ival = OP_BACKTICK;
3213 TERM(sublex_start());
3220 s = force_word(s,WORD,TRUE,TRUE,FALSE);
3221 if (isIDFIRST(*tokenbuf))
3222 gv_stashpvn(tokenbuf, strlen(tokenbuf), TRUE);
3224 yyerror("<> should be quotes");
3231 s = force_word(s,WORD,TRUE,FALSE,FALSE);
3235 LOP(OP_RENAME,XTERM);
3244 LOP(OP_RINDEX,XTERM);
3267 LOP(OP_REVERSE,XTERM);
3278 TERM(sublex_start());
3280 TOKEN(1); /* force error */
3289 LOP(OP_SELECT,XTERM);
3295 LOP(OP_SEMCTL,XTERM);
3298 LOP(OP_SEMGET,XTERM);
3301 LOP(OP_SEMOP,XTERM);
3307 LOP(OP_SETPGRP,XTERM);
3309 case KEY_setpriority:
3310 LOP(OP_SETPRIORITY,XTERM);
3312 case KEY_sethostent:
3318 case KEY_setservent:
3321 case KEY_setprotoent:
3331 LOP(OP_SEEKDIR,XTERM);
3333 case KEY_setsockopt:
3334 LOP(OP_SSOCKOPT,XTERM);
3340 LOP(OP_SHMCTL,XTERM);
3343 LOP(OP_SHMGET,XTERM);
3346 LOP(OP_SHMREAD,XTERM);
3349 LOP(OP_SHMWRITE,XTERM);
3352 LOP(OP_SHUTDOWN,XTERM);
3361 LOP(OP_SOCKET,XTERM);
3363 case KEY_socketpair:
3364 LOP(OP_SOCKPAIR,XTERM);
3367 checkcomma(s,tokenbuf,"subroutine name");
3369 if (*s == ';' || *s == ')') /* probably a close */
3370 croak("sort is now a reserved word");
3372 s = force_word(s,WORD,TRUE,TRUE,TRUE);
3376 LOP(OP_SPLIT,XTERM);
3379 LOP(OP_SPRINTF,XTERM);
3382 LOP(OP_SPLICE,XTERM);
3398 LOP(OP_SUBSTR,XTERM);
3405 if (isIDFIRST(*s) || *s == '\'' || *s == ':') {
3408 d = scan_word(s, tmpbuf, TRUE, &len);
3409 if (strchr(tmpbuf, ':'))
3410 sv_setpv(subname, tmpbuf);
3412 sv_setsv(subname,curstname);
3413 sv_catpvn(subname,"::",2);
3414 sv_catpvn(subname,tmpbuf,len);
3416 s = force_word(s,WORD,FALSE,TRUE,TRUE);
3420 expect = XTERMBLOCK;
3421 sv_setpv(subname,"?");
3424 if (tmp == KEY_format) {
3427 lex_formbrack = lex_brackets + 1;
3431 /* Look for a prototype */
3436 SvREFCNT_dec(lex_stuff);
3438 croak("Prototype not terminated");
3441 nextval[1] = nextval[0];
3442 nexttype[1] = nexttype[0];
3443 nextval[0].opval = (OP*)newSVOP(OP_CONST, 0, lex_stuff);
3444 nexttype[0] = THING;
3445 if (nexttoke == 1) {
3446 lex_defer = lex_state;
3447 lex_expect = expect;
3448 lex_state = LEX_KNOWNEXT;
3453 if (*SvPV(subname,na) == '?') {
3454 sv_setpv(subname,"__ANON__");
3461 LOP(OP_SYSTEM,XREF);
3464 LOP(OP_SYMLINK,XTERM);
3467 LOP(OP_SYSCALL,XTERM);
3470 LOP(OP_SYSOPEN,XTERM);
3473 LOP(OP_SYSREAD,XTERM);
3476 LOP(OP_SYSWRITE,XTERM);
3480 TERM(sublex_start());
3501 LOP(OP_TRUNCATE,XTERM);
3513 yylval.ival = curcop->cop_line;
3517 yylval.ival = curcop->cop_line;
3521 LOP(OP_UNLINK,XTERM);
3527 LOP(OP_UNPACK,XTERM);
3530 LOP(OP_UTIME,XTERM);
3534 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
3535 if (*d != '0' && isDIGIT(*d))
3536 yywarn("umask: argument is missing initial 0");
3541 LOP(OP_UNSHIFT,XTERM);
3544 if (expect != XSTATE)
3545 yyerror("\"use\" not allowed in expression");
3548 s = force_version(s);
3549 if(*s == ';' || (s = skipspace(s), *s == ';')) {
3550 nextval[nexttoke].opval = Nullop;
3555 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3556 s = force_version(s);
3569 yylval.ival = curcop->cop_line;
3573 hints |= HINT_BLOCK_SCOPE;
3580 LOP(OP_WAITPID,XTERM);
3586 gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */
3590 if (expect == XOPERATOR)
3596 yylval.ival = OP_XOR;
3601 TERM(sublex_start());
3614 if (strEQ(d,"__LINE__")) return -KEY___LINE__;
3615 if (strEQ(d,"__FILE__")) return -KEY___FILE__;
3616 if (strEQ(d,"__DATA__")) return KEY___DATA__;
3617 if (strEQ(d,"__END__")) return KEY___END__;
3621 if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD;
3626 if (strEQ(d,"and")) return -KEY_and;
3627 if (strEQ(d,"abs")) return -KEY_abs;
3630 if (strEQ(d,"alarm")) return -KEY_alarm;
3631 if (strEQ(d,"atan2")) return -KEY_atan2;
3634 if (strEQ(d,"accept")) return -KEY_accept;
3639 if (strEQ(d,"BEGIN")) return KEY_BEGIN;
3642 if (strEQ(d,"bless")) return -KEY_bless;
3643 if (strEQ(d,"bind")) return -KEY_bind;
3644 if (strEQ(d,"binmode")) return -KEY_binmode;
3647 if (strEQ(d,"CORE")) return -KEY_CORE;
3652 if (strEQ(d,"cmp")) return -KEY_cmp;
3653 if (strEQ(d,"chr")) return -KEY_chr;
3654 if (strEQ(d,"cos")) return -KEY_cos;
3657 if (strEQ(d,"chop")) return KEY_chop;
3660 if (strEQ(d,"close")) return -KEY_close;
3661 if (strEQ(d,"chdir")) return -KEY_chdir;
3662 if (strEQ(d,"chomp")) return KEY_chomp;
3663 if (strEQ(d,"chmod")) return -KEY_chmod;
3664 if (strEQ(d,"chown")) return -KEY_chown;
3665 if (strEQ(d,"crypt")) return -KEY_crypt;
3668 if (strEQ(d,"chroot")) return -KEY_chroot;
3669 if (strEQ(d,"caller")) return -KEY_caller;
3672 if (strEQ(d,"connect")) return -KEY_connect;
3675 if (strEQ(d,"closedir")) return -KEY_closedir;
3676 if (strEQ(d,"continue")) return -KEY_continue;
3681 if (strEQ(d,"DESTROY")) return KEY_DESTROY;
3686 if (strEQ(d,"do")) return KEY_do;
3689 if (strEQ(d,"die")) return -KEY_die;
3692 if (strEQ(d,"dump")) return -KEY_dump;
3695 if (strEQ(d,"delete")) return KEY_delete;
3698 if (strEQ(d,"defined")) return KEY_defined;
3699 if (strEQ(d,"dbmopen")) return -KEY_dbmopen;
3702 if (strEQ(d,"dbmclose")) return -KEY_dbmclose;
3707 if (strEQ(d,"EQ")) { deprecate(d); return -KEY_eq;}
3708 if (strEQ(d,"END")) return KEY_END;
3713 if (strEQ(d,"eq")) return -KEY_eq;
3716 if (strEQ(d,"eof")) return -KEY_eof;
3717 if (strEQ(d,"exp")) return -KEY_exp;
3720 if (strEQ(d,"else")) return KEY_else;
3721 if (strEQ(d,"exit")) return -KEY_exit;
3722 if (strEQ(d,"eval")) return KEY_eval;
3723 if (strEQ(d,"exec")) return -KEY_exec;
3724 if (strEQ(d,"each")) return KEY_each;
3727 if (strEQ(d,"elsif")) return KEY_elsif;
3730 if (strEQ(d,"exists")) return KEY_exists;
3731 if (strEQ(d,"elseif")) warn("elseif should be elsif");
3734 if (strEQ(d,"endgrent")) return -KEY_endgrent;
3735 if (strEQ(d,"endpwent")) return -KEY_endpwent;
3738 if (strEQ(d,"endnetent")) return -KEY_endnetent;
3741 if (strEQ(d,"endhostent")) return -KEY_endhostent;
3742 if (strEQ(d,"endservent")) return -KEY_endservent;
3745 if (strEQ(d,"endprotoent")) return -KEY_endprotoent;
3752 if (strEQ(d,"for")) return KEY_for;
3755 if (strEQ(d,"fork")) return -KEY_fork;
3758 if (strEQ(d,"fcntl")) return -KEY_fcntl;
3759 if (strEQ(d,"flock")) return -KEY_flock;
3762 if (strEQ(d,"format")) return KEY_format;
3763 if (strEQ(d,"fileno")) return -KEY_fileno;
3766 if (strEQ(d,"foreach")) return KEY_foreach;
3769 if (strEQ(d,"formline")) return -KEY_formline;
3775 if (strEQ(d,"GT")) { deprecate(d); return -KEY_gt;}
3776 if (strEQ(d,"GE")) { deprecate(d); return -KEY_ge;}
3780 if (strnEQ(d,"get",3)) {
3785 if (strEQ(d,"ppid")) return -KEY_getppid;
3786 if (strEQ(d,"pgrp")) return -KEY_getpgrp;
3789 if (strEQ(d,"pwent")) return -KEY_getpwent;
3790 if (strEQ(d,"pwnam")) return -KEY_getpwnam;
3791 if (strEQ(d,"pwuid")) return -KEY_getpwuid;
3794 if (strEQ(d,"peername")) return -KEY_getpeername;
3795 if (strEQ(d,"protoent")) return -KEY_getprotoent;
3796 if (strEQ(d,"priority")) return -KEY_getpriority;
3799 if (strEQ(d,"protobyname")) return -KEY_getprotobyname;
3802 if (strEQ(d,"protobynumber"))return -KEY_getprotobynumber;
3806 else if (*d == 'h') {
3807 if (strEQ(d,"hostbyname")) return -KEY_gethostbyname;
3808 if (strEQ(d,"hostbyaddr")) return -KEY_gethostbyaddr;
3809 if (strEQ(d,"hostent")) return -KEY_gethostent;
3811 else if (*d == 'n') {
3812 if (strEQ(d,"netbyname")) return -KEY_getnetbyname;
3813 if (strEQ(d,"netbyaddr")) return -KEY_getnetbyaddr;
3814 if (strEQ(d,"netent")) return -KEY_getnetent;
3816 else if (*d == 's') {
3817 if (strEQ(d,"servbyname")) return -KEY_getservbyname;
3818 if (strEQ(d,"servbyport")) return -KEY_getservbyport;
3819 if (strEQ(d,"servent")) return -KEY_getservent;
3820 if (strEQ(d,"sockname")) return -KEY_getsockname;
3821 if (strEQ(d,"sockopt")) return -KEY_getsockopt;
3823 else if (*d == 'g') {
3824 if (strEQ(d,"grent")) return -KEY_getgrent;
3825 if (strEQ(d,"grnam")) return -KEY_getgrnam;
3826 if (strEQ(d,"grgid")) return -KEY_getgrgid;
3828 else if (*d == 'l') {
3829 if (strEQ(d,"login")) return -KEY_getlogin;
3831 else if (strEQ(d,"c")) return -KEY_getc;
3836 if (strEQ(d,"gt")) return -KEY_gt;
3837 if (strEQ(d,"ge")) return -KEY_ge;
3840 if (strEQ(d,"grep")) return KEY_grep;
3841 if (strEQ(d,"goto")) return KEY_goto;
3842 if (strEQ(d,"glob")) return -KEY_glob;
3845 if (strEQ(d,"gmtime")) return -KEY_gmtime;
3850 if (strEQ(d,"hex")) return -KEY_hex;
3855 if (strEQ(d,"if")) return KEY_if;
3858 if (strEQ(d,"int")) return -KEY_int;
3861 if (strEQ(d,"index")) return -KEY_index;
3862 if (strEQ(d,"ioctl")) return -KEY_ioctl;
3867 if (strEQ(d,"join")) return -KEY_join;
3871 if (strEQ(d,"keys")) return KEY_keys;
3872 if (strEQ(d,"kill")) return -KEY_kill;
3877 if (strEQ(d,"LT")) { deprecate(d); return -KEY_lt;}
3878 if (strEQ(d,"LE")) { deprecate(d); return -KEY_le;}
3884 if (strEQ(d,"lt")) return -KEY_lt;
3885 if (strEQ(d,"le")) return -KEY_le;
3886 if (strEQ(d,"lc")) return -KEY_lc;
3889 if (strEQ(d,"log")) return -KEY_log;
3892 if (strEQ(d,"last")) return KEY_last;
3893 if (strEQ(d,"link")) return -KEY_link;
3896 if (strEQ(d,"local")) return KEY_local;
3897 if (strEQ(d,"lstat")) return -KEY_lstat;
3900 if (strEQ(d,"length")) return -KEY_length;
3901 if (strEQ(d,"listen")) return -KEY_listen;
3904 if (strEQ(d,"lcfirst")) return -KEY_lcfirst;
3907 if (strEQ(d,"localtime")) return -KEY_localtime;
3913 case 1: return KEY_m;
3915 if (strEQ(d,"my")) return KEY_my;
3918 if (strEQ(d,"map")) return KEY_map;
3921 if (strEQ(d,"mkdir")) return -KEY_mkdir;
3924 if (strEQ(d,"msgctl")) return -KEY_msgctl;
3925 if (strEQ(d,"msgget")) return -KEY_msgget;
3926 if (strEQ(d,"msgrcv")) return -KEY_msgrcv;
3927 if (strEQ(d,"msgsnd")) return -KEY_msgsnd;
3932 if (strEQ(d,"NE")) { deprecate(d); return -KEY_ne;}
3935 if (strEQ(d,"next")) return KEY_next;
3936 if (strEQ(d,"ne")) return -KEY_ne;
3937 if (strEQ(d,"not")) return -KEY_not;
3938 if (strEQ(d,"no")) return KEY_no;
3943 if (strEQ(d,"or")) return -KEY_or;
3946 if (strEQ(d,"ord")) return -KEY_ord;
3947 if (strEQ(d,"oct")) return -KEY_oct;
3950 if (strEQ(d,"open")) return -KEY_open;
3953 if (strEQ(d,"opendir")) return -KEY_opendir;
3960 if (strEQ(d,"pop")) return KEY_pop;
3961 if (strEQ(d,"pos")) return KEY_pos;
3964 if (strEQ(d,"push")) return KEY_push;
3965 if (strEQ(d,"pack")) return -KEY_pack;
3966 if (strEQ(d,"pipe")) return -KEY_pipe;
3969 if (strEQ(d,"print")) return KEY_print;
3972 if (strEQ(d,"printf")) return KEY_printf;
3975 if (strEQ(d,"package")) return KEY_package;
3978 if (strEQ(d,"prototype")) return KEY_prototype;
3983 if (strEQ(d,"q")) return KEY_q;
3984 if (strEQ(d,"qq")) return KEY_qq;
3985 if (strEQ(d,"qw")) return KEY_qw;
3986 if (strEQ(d,"qx")) return KEY_qx;
3988 else if (strEQ(d,"quotemeta")) return -KEY_quotemeta;
3993 if (strEQ(d,"ref")) return -KEY_ref;
3996 if (strEQ(d,"read")) return -KEY_read;
3997 if (strEQ(d,"rand")) return -KEY_rand;
3998 if (strEQ(d,"recv")) return -KEY_recv;
3999 if (strEQ(d,"redo")) return KEY_redo;
4002 if (strEQ(d,"rmdir")) return -KEY_rmdir;
4003 if (strEQ(d,"reset")) return -KEY_reset;
4006 if (strEQ(d,"return")) return KEY_return;
4007 if (strEQ(d,"rename")) return -KEY_rename;
4008 if (strEQ(d,"rindex")) return -KEY_rindex;
4011 if (strEQ(d,"require")) return -KEY_require;
4012 if (strEQ(d,"reverse")) return -KEY_reverse;
4013 if (strEQ(d,"readdir")) return -KEY_readdir;
4016 if (strEQ(d,"readlink")) return -KEY_readlink;
4017 if (strEQ(d,"readline")) return -KEY_readline;
4018 if (strEQ(d,"readpipe")) return -KEY_readpipe;
4021 if (strEQ(d,"rewinddir")) return -KEY_rewinddir;
4027 case 0: return KEY_s;
4029 if (strEQ(d,"scalar")) return KEY_scalar;
4034 if (strEQ(d,"seek")) return -KEY_seek;
4035 if (strEQ(d,"send")) return -KEY_send;
4038 if (strEQ(d,"semop")) return -KEY_semop;
4041 if (strEQ(d,"select")) return -KEY_select;
4042 if (strEQ(d,"semctl")) return -KEY_semctl;
4043 if (strEQ(d,"semget")) return -KEY_semget;
4046 if (strEQ(d,"setpgrp")) return -KEY_setpgrp;
4047 if (strEQ(d,"seekdir")) return -KEY_seekdir;
4050 if (strEQ(d,"setpwent")) return -KEY_setpwent;
4051 if (strEQ(d,"setgrent")) return -KEY_setgrent;
4054 if (strEQ(d,"setnetent")) return -KEY_setnetent;
4057 if (strEQ(d,"setsockopt")) return -KEY_setsockopt;
4058 if (strEQ(d,"sethostent")) return -KEY_sethostent;
4059 if (strEQ(d,"setservent")) return -KEY_setservent;
4062 if (strEQ(d,"setpriority")) return -KEY_setpriority;
4063 if (strEQ(d,"setprotoent")) return -KEY_setprotoent;
4070 if (strEQ(d,"shift")) return KEY_shift;
4073 if (strEQ(d,"shmctl")) return -KEY_shmctl;
4074 if (strEQ(d,"shmget")) return -KEY_shmget;
4077 if (strEQ(d,"shmread")) return -KEY_shmread;
4080 if (strEQ(d,"shmwrite")) return -KEY_shmwrite;
4081 if (strEQ(d,"shutdown")) return -KEY_shutdown;
4086 if (strEQ(d,"sin")) return -KEY_sin;
4089 if (strEQ(d,"sleep")) return -KEY_sleep;
4092 if (strEQ(d,"sort")) return KEY_sort;
4093 if (strEQ(d,"socket")) return -KEY_socket;
4094 if (strEQ(d,"socketpair")) return -KEY_socketpair;
4097 if (strEQ(d,"split")) return KEY_split;
4098 if (strEQ(d,"sprintf")) return -KEY_sprintf;
4099 if (strEQ(d,"splice")) return KEY_splice;
4102 if (strEQ(d,"sqrt")) return -KEY_sqrt;
4105 if (strEQ(d,"srand")) return -KEY_srand;
4108 if (strEQ(d,"stat")) return -KEY_stat;
4109 if (strEQ(d,"study")) return KEY_study;
4112 if (strEQ(d,"substr")) return -KEY_substr;
4113 if (strEQ(d,"sub")) return KEY_sub;
4118 if (strEQ(d,"system")) return -KEY_system;
4121 if (strEQ(d,"sysopen")) return -KEY_sysopen;
4122 if (strEQ(d,"sysread")) return -KEY_sysread;
4123 if (strEQ(d,"symlink")) return -KEY_symlink;
4124 if (strEQ(d,"syscall")) return -KEY_syscall;
4127 if (strEQ(d,"syswrite")) return -KEY_syswrite;
4136 if (strEQ(d,"tr")) return KEY_tr;
4139 if (strEQ(d,"tie")) return KEY_tie;
4142 if (strEQ(d,"tell")) return -KEY_tell;
4143 if (strEQ(d,"tied")) return KEY_tied;
4144 if (strEQ(d,"time")) return -KEY_time;
4147 if (strEQ(d,"times")) return -KEY_times;
4150 if (strEQ(d,"telldir")) return -KEY_telldir;
4153 if (strEQ(d,"truncate")) return -KEY_truncate;
4160 if (strEQ(d,"uc")) return -KEY_uc;
4163 if (strEQ(d,"use")) return KEY_use;
4166 if (strEQ(d,"undef")) return KEY_undef;
4167 if (strEQ(d,"until")) return KEY_until;
4168 if (strEQ(d,"untie")) return KEY_untie;
4169 if (strEQ(d,"utime")) return -KEY_utime;
4170 if (strEQ(d,"umask")) return -KEY_umask;
4173 if (strEQ(d,"unless")) return KEY_unless;
4174 if (strEQ(d,"unpack")) return -KEY_unpack;
4175 if (strEQ(d,"unlink")) return -KEY_unlink;
4178 if (strEQ(d,"unshift")) return KEY_unshift;
4179 if (strEQ(d,"ucfirst")) return -KEY_ucfirst;
4184 if (strEQ(d,"values")) return -KEY_values;
4185 if (strEQ(d,"vec")) return -KEY_vec;
4190 if (strEQ(d,"warn")) return -KEY_warn;
4191 if (strEQ(d,"wait")) return -KEY_wait;
4194 if (strEQ(d,"while")) return KEY_while;
4195 if (strEQ(d,"write")) return -KEY_write;
4198 if (strEQ(d,"waitpid")) return -KEY_waitpid;
4201 if (strEQ(d,"wantarray")) return -KEY_wantarray;
4206 if (len == 1) return -KEY_x;
4207 if (strEQ(d,"xor")) return -KEY_xor;
4210 if (len == 1) return KEY_y;
4219 checkcomma(s,name,what)
4226 if (dowarn && *s == ' ' && s[1] == '(') { /* XXX gotta be a better way */
4228 for (w = s+2; *w && level; w++) {
4235 for (; *w && isSPACE(*w); w++) ;
4236 if (!*w || !strchr(";|})]oa!=", *w)) /* an advisory hack only... */
4237 warn("%s (...) interpreted as function",name);
4239 while (s < bufend && isSPACE(*s))
4243 while (s < bufend && isSPACE(*s))
4245 if (isIDFIRST(*s)) {
4249 while (s < bufend && isSPACE(*s))
4254 kw = keyword(w, s - w) || perl_get_cv(w, FALSE) != 0;
4258 croak("No comma allowed after %s", what);
4264 scan_word(s, dest, allow_package, slp)
4270 register char *d = dest;
4274 else if (*s == '\'' && allow_package && isIDFIRST(s[1])) {
4279 else if (*s == ':' && s[1] == ':' && allow_package && isIDFIRST(s[2])) {
4292 scan_ident(s,send,dest,ck_uni)
4294 register char *send;
4302 if (lex_brackets == 0)
4315 else if (*s == '\'' && isIDFIRST(s[1])) {
4320 else if (*s == ':' && s[1] == ':') {
4331 if (lex_state != LEX_NORMAL)
4332 lex_state = LEX_INTERPENDMAYBE;
4335 if (*s == '$' && s[1] &&
4336 (isALPHA(s[1]) || strchr("$_{", s[1]) || strnEQ(s+1,"::",2)) )
4347 if (*d == '^' && *s && (isUPPER(*s) || strchr("[\\]^_?", *s))) {
4352 if (isSPACE(s[-1])) {
4353 while (s < send && (*s == ' ' || *s == '\t')) s++;
4356 if (isIDFIRST(*d)) {
4358 while (isALNUM(*s) || *s == ':')
4361 while (s < send && (*s == ' ' || *s == '\t')) s++;
4362 if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) {
4363 if (dowarn && keyword(dest, d - dest)) {
4364 char *brack = *s == '[' ? "[...]" : "{...}";
4365 warn("Ambiguous use of %c{%s%s} resolved to %c%s%s",
4366 funny, dest, brack, funny, dest, brack);
4368 lex_fakebrack = lex_brackets+1;
4370 lex_brackstack[lex_brackets++] = XOPERATOR;
4376 if (lex_state == LEX_INTERPNORMAL && !lex_brackets)
4377 lex_state = LEX_INTERPEND;
4381 (keyword(dest, d - dest) || perl_get_cv(dest, FALSE)))
4382 warn("Ambiguous use of %c{%s} resolved to %c%s",
4383 funny, dest, funny, dest);
4386 s = bracket; /* let the parser handle it */
4390 else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s))
4391 lex_state = LEX_INTERPEND;
4395 void pmflag(pmfl,ch)
4402 *pmfl |= PMf_GLOBAL;
4406 *pmfl |= PMf_MULTILINE;
4408 *pmfl |= PMf_SINGLELINE;
4410 *pmfl |= PMf_EXTENDED;
4420 s = scan_str(start);
4423 SvREFCNT_dec(lex_stuff);
4425 croak("Search pattern not terminated");
4428 pm = (PMOP*)newPMOP(OP_MATCH, 0);
4429 if (multi_open == '?')
4430 pm->op_pmflags |= PMf_ONCE;
4431 while (*s && strchr("iogmsx", *s))
4432 pmflag(&pm->op_pmflags,*s++);
4433 pm->op_pmpermflags = pm->op_pmflags;
4436 yylval.ival = OP_MATCH;
4448 yylval.ival = OP_NULL;
4450 s = scan_str(start);
4454 SvREFCNT_dec(lex_stuff);
4456 croak("Substitution pattern not terminated");
4459 if (s[-1] == multi_open)
4465 SvREFCNT_dec(lex_stuff);
4468 SvREFCNT_dec(lex_repl);
4470 croak("Substitution replacement not terminated");
4473 pm = (PMOP*)newPMOP(OP_SUBST, 0);
4474 while (*s && strchr("iogmsex", *s)) {
4480 pmflag(&pm->op_pmflags,*s++);
4485 pm->op_pmflags |= PMf_EVAL;
4486 repl = newSVpv("",0);
4488 sv_catpv(repl, es ? "eval " : "do ");
4489 sv_catpvn(repl, "{ ", 2);
4490 sv_catsv(repl, lex_repl);
4491 sv_catpvn(repl, " };", 2);
4492 SvCOMPILED_on(repl);
4493 SvREFCNT_dec(lex_repl);
4497 pm->op_pmpermflags = pm->op_pmflags;
4499 yylval.ival = OP_SUBST;
4507 if (!pm->op_pmshort && pm->op_pmregexp->regstart &&
4508 (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH)
4510 if (!(pm->op_pmregexp->reganch & ROPT_ANCH))
4511 pm->op_pmflags |= PMf_SCANFIRST;
4512 pm->op_pmshort = SvREFCNT_inc(pm->op_pmregexp->regstart);
4513 pm->op_pmslen = SvCUR(pm->op_pmshort);
4515 else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */
4516 if (pm->op_pmshort &&
4517 sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust))
4519 if (pm->op_pmflags & PMf_SCANFIRST) {
4520 SvREFCNT_dec(pm->op_pmshort);
4521 pm->op_pmshort = Nullsv;
4524 SvREFCNT_dec(pm->op_pmregexp->regmust);
4525 pm->op_pmregexp->regmust = Nullsv;
4529 if (!pm->op_pmshort || /* promote the better string */
4530 ((pm->op_pmflags & PMf_SCANFIRST) &&
4531 (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)) )){
4532 SvREFCNT_dec(pm->op_pmshort); /* ok if null */
4533 pm->op_pmshort = pm->op_pmregexp->regmust;
4534 pm->op_pmslen = SvCUR(pm->op_pmshort);
4535 pm->op_pmregexp->regmust = Nullsv;
4536 pm->op_pmflags |= PMf_SCANFIRST;
4552 yylval.ival = OP_NULL;
4554 s = scan_str(start);
4557 SvREFCNT_dec(lex_stuff);
4559 croak("Translation pattern not terminated");
4561 if (s[-1] == multi_open)
4567 SvREFCNT_dec(lex_stuff);
4570 SvREFCNT_dec(lex_repl);
4572 croak("Translation replacement not terminated");
4575 New(803,tbl,256,short);
4576 op = newPVOP(OP_TRANS, 0, (char*)tbl);
4578 complement = delete = squash = 0;
4579 while (*s == 'c' || *s == 'd' || *s == 's') {
4581 complement = OPpTRANS_COMPLEMENT;
4583 delete = OPpTRANS_DELETE;
4585 squash = OPpTRANS_SQUASH;
4588 op->op_private = delete|squash|complement;
4591 yylval.ival = OP_TRANS;
4600 I32 op_type = OP_SCALAR;
4611 for (peek = s; *peek == ' ' || *peek == '\t'; peek++) ;
4612 if (*peek && strchr("`'\"",*peek)) {
4615 s = cpytill(d,s,bufend,term,&len);
4626 deprecate("bare << to mean <<\"\"");
4629 } /* assuming tokenbuf won't clobber */
4634 if (rsfp || !(d=ninstr(s,bufend,d,d+1)))
4635 herewas = newSVpv(s,bufend-s);
4637 s--, herewas = newSVpv(s,d-s);
4638 s += SvCUR(herewas);
4640 tmpstr = NEWSV(87,80);
4641 sv_upgrade(tmpstr, SVt_PVIV);
4646 else if (term == '`') {
4647 op_type = OP_BACKTICK;
4648 SvIVX(tmpstr) = '\\';
4652 multi_start = curcop->cop_line;
4653 multi_open = multi_close = '<';
4657 while (s < bufend &&
4658 (*s != term || memNE(s,tokenbuf,len)) ) {
4663 curcop->cop_line = multi_start;
4664 missingterm(tokenbuf);
4666 sv_setpvn(tmpstr,d+1,s-d);
4668 sv_catpvn(herewas,s,bufend-s);
4669 sv_setsv(linestr,herewas);
4670 oldoldbufptr = oldbufptr = bufptr = s = linestart = SvPVX(linestr);
4671 bufend = SvPVX(linestr) + SvCUR(linestr);
4674 sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */
4675 while (s >= bufend) { /* multiple line string? */
4677 !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) {
4678 curcop->cop_line = multi_start;
4679 missingterm(tokenbuf);
4682 if (perldb && curstash != debstash) {
4683 SV *sv = NEWSV(88,0);
4685 sv_upgrade(sv, SVt_PVMG);
4686 sv_setsv(sv,linestr);
4687 av_store(GvAV(curcop->cop_filegv),
4688 (I32)curcop->cop_line,sv);
4690 bufend = SvPVX(linestr) + SvCUR(linestr);
4691 if (*s == term && memEQ(s,tokenbuf,len)) {
4694 sv_catsv(linestr,herewas);
4695 bufend = SvPVX(linestr) + SvCUR(linestr);
4699 sv_catsv(tmpstr,linestr);
4702 multi_end = curcop->cop_line;
4704 if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) {
4705 SvLEN_set(tmpstr, SvCUR(tmpstr) + 1);
4706 Renew(SvPVX(tmpstr), SvLEN(tmpstr), char);
4708 SvREFCNT_dec(herewas);
4710 yylval.ival = op_type;
4715 scan_inputsymbol(start)
4718 register char *s = start;
4723 s = cpytill(d, s+1, bufend, '>', &len);
4727 croak("Unterminated <> operator");
4729 if (*d == '$' && d[1]) d++;
4730 while (*d && (isALNUM(*d) || *d == '\'' || *d == ':'))
4732 if (d - tokenbuf != len) {
4733 yylval.ival = OP_GLOB;
4735 s = scan_str(start);
4737 croak("Glob not terminated");
4743 (void)strcpy(d,"ARGV");
4746 if (tmp = pad_findmy(d)) {
4747 OP *op = newOP(OP_PADSV, 0);
4749 lex_op = (OP*)newUNOP(OP_READLINE, 0, newUNOP(OP_RV2GV, 0, op));
4752 GV *gv = gv_fetchpv(d+1,TRUE, SVt_PV);
4753 lex_op = (OP*)newUNOP(OP_READLINE, 0,
4754 newUNOP(OP_RV2GV, 0,
4755 newUNOP(OP_RV2SV, 0,
4756 newGVOP(OP_GV, 0, gv))));
4758 yylval.ival = OP_NULL;
4761 GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO);
4762 lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv));
4763 yylval.ival = OP_NULL;
4775 register char *s = start;
4784 multi_start = curcop->cop_line;
4786 if (term && (tmps = strchr("([{< )]}> )]}>",term)))
4791 sv_upgrade(sv, SVt_PVIV);
4793 (void)SvPOK_only(sv); /* validate pointer */
4796 SvGROW(sv, SvCUR(sv) + (bufend - s) + 1);
4797 to = SvPVX(sv)+SvCUR(sv);
4798 if (multi_open == multi_close) {
4799 for (; s < bufend; s++,to++) {
4800 if (*s == '\n' && !rsfp)
4802 if (*s == '\\' && s+1 < bufend && term != '\\') {
4808 else if (*s == term)
4814 for (; s < bufend; s++,to++) {
4815 if (*s == '\n' && !rsfp)
4817 if (*s == '\\' && s+1 < bufend && term != '\\') {
4823 else if (*s == term && --brackets <= 0)
4825 else if (*s == multi_open)
4831 SvCUR_set(sv, to - SvPVX(sv));
4833 if (s < bufend) break; /* string ends on this line? */
4836 !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) {
4838 curcop->cop_line = multi_start;
4842 if (perldb && curstash != debstash) {
4843 SV *sv = NEWSV(88,0);
4845 sv_upgrade(sv, SVt_PVMG);
4846 sv_setsv(sv,linestr);
4847 av_store(GvAV(curcop->cop_filegv),
4848 (I32)curcop->cop_line, sv);
4850 bufend = SvPVX(linestr) + SvCUR(linestr);
4852 multi_end = curcop->cop_line;
4854 if (SvCUR(sv) + 5 < SvLEN(sv)) {
4855 SvLEN_set(sv, SvCUR(sv) + 1);
4856 Renew(SvPVX(sv), SvLEN(sv), char);
4869 register char *s = start;
4879 croak("panic: scan_num");
4884 bool overflowed = FALSE;
4890 else if (s[1] == '.')
4906 yyerror("Illegal octal digit");
4908 case '0': case '1': case '2': case '3': case '4':
4909 case '5': case '6': case '7':
4912 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
4913 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
4919 if (!overflowed && (n >> shift) != u) {
4920 warn("Integer overflow in %s number",
4921 (shift == 4) ? "hex" : "octal");
4933 case '1': case '2': case '3': case '4': case '5':
4934 case '6': case '7': case '8': case '9': case '.':
4938 while (isDIGIT(*s) || *s == '_') {
4940 if (dowarn && lastub && s - lastub != 3)
4941 warn("Misplaced _ in number");
4947 if (dowarn && lastub && s - lastub != 3)
4948 warn("Misplaced _ in number");
4949 if (*s == '.' && s[1] != '.') {
4952 while (isDIGIT(*s) || *s == '_') {
4959 if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) {
4962 *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */
4963 if (*s == '+' || *s == '-')
4970 SET_NUMERIC_STANDARD();
4971 value = atof(tokenbuf);
4972 tryi32 = I_32(value);
4973 if (!floatit && (double)tryi32 == value)
4974 sv_setiv(sv,tryi32);
4980 yylval.opval = newSVOP(OP_CONST, 0, sv);
4991 SV *stuff = newSVpv("",0);
4992 bool needargs = FALSE;
4995 if (*s == '.' || *s == '}') {
4997 for (t = s+1; *t == ' ' || *t == '\t'; t++) ;
5001 if (in_eval && !rsfp) {
5002 eol = strchr(s,'\n');
5007 eol = bufend = SvPVX(linestr) + SvCUR(linestr);
5009 for (t = s; t < eol; t++) {
5010 if (*t == '~' && t[1] == '~' && SvCUR(stuff)) {
5012 goto enough; /* ~~ must be first line in formline */
5014 if (*t == '@' || *t == '^')
5017 sv_catpvn(stuff, s, eol-s);
5021 s = filter_gets(linestr, rsfp, 0);
5022 oldoldbufptr = oldbufptr = bufptr = linestart = SvPVX(linestr);
5023 bufend = bufptr + SvCUR(linestr);
5026 yyerror("Format not terminated");
5036 lex_state = LEX_NORMAL;
5037 nextval[nexttoke].ival = 0;
5041 lex_state = LEX_FORMLINE;
5042 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff);
5044 nextval[nexttoke].ival = OP_FORMLINE;
5048 SvREFCNT_dec(stuff);
5060 cshlen = strlen(cshname);
5067 int oldsavestack_ix = savestack_ix;
5068 CV* outsidecv = compcv;
5072 assert(SvTYPE(compcv) == SVt_PVCV);
5079 SAVESPTR(comppad_name);
5081 SAVEI32(comppad_name_fill);
5082 SAVEI32(min_intro_pending);
5083 SAVEI32(max_intro_pending);
5084 SAVEI32(pad_reset_pending);
5086 compcv = (CV*)NEWSV(1104,0);
5087 sv_upgrade((SV *)compcv, SVt_PVCV);
5090 comppad_name = newAV();
5091 comppad_name_fill = 0;
5092 min_intro_pending = 0;
5093 av_push(comppad, Nullsv);
5094 curpad = AvARRAY(comppad);
5096 subline = curcop->cop_line;
5098 comppadlist = newAV();
5099 AvREAL_off(comppadlist);
5100 av_store(comppadlist, 0, (SV*)comppad_name);
5101 av_store(comppadlist, 1, (SV*)comppad);
5103 CvPADLIST(compcv) = comppadlist;
5104 CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc((SV*)outsidecv);
5106 return oldsavestack_ix;
5125 char *tname = tmpbuf;
5127 if (bufptr > oldoldbufptr && bufptr - oldoldbufptr < 200 &&
5128 oldoldbufptr != oldbufptr && oldbufptr != bufptr) {
5129 while (isSPACE(*oldoldbufptr))
5131 sprintf(tname,"near \"%.*s\"",bufptr - oldoldbufptr, oldoldbufptr);
5133 else if (bufptr > oldbufptr && bufptr - oldbufptr < 200 &&
5134 oldbufptr != bufptr) {
5135 while (isSPACE(*oldbufptr))
5137 sprintf(tname,"near \"%.*s\"",bufptr - oldbufptr, oldbufptr);
5139 else if (yychar > 255)
5140 tname = "next token ???";
5141 else if (!yychar || (yychar == ';' && !rsfp))
5142 (void)strcpy(tname,"at EOF");
5143 else if ((yychar & 127) == 127) {
5144 if (lex_state == LEX_NORMAL ||
5145 (lex_state == LEX_KNOWNEXT && lex_defer == LEX_NORMAL))
5146 (void)strcpy(tname,"at end of line");
5148 (void)strcpy(tname,"within pattern");
5150 (void)strcpy(tname,"within string");
5152 else if (yychar < 32)
5153 (void)sprintf(tname,"next char ^%c",toCTRL(yychar));
5155 (void)sprintf(tname,"next char %c",yychar);
5156 (void)sprintf(buf, "%s at %s line %d, %s\n",
5157 s,SvPVX(GvSV(curcop->cop_filegv)),curcop->cop_line,tname);
5158 if (curcop->cop_line == multi_end && multi_start < multi_end) {
5159 sprintf(buf+strlen(buf),
5160 " (Might be a runaway multi-line %c%c string starting on line %ld)\n",
5161 multi_open,multi_close,(long)multi_start);
5167 sv_catpv(GvSV(errgv),buf);
5169 PerlIO_printf(PerlIO_stderr(), "%s",buf);
5170 if (++error_count >= 10)
5171 croak("%s has too many errors.\n",
5172 SvPVX(GvSV(curcop->cop_filegv)));