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);
295 PerlIO *fp = (PerlIO*)f;
297 if (rsfp == PerlIO_stdin())
298 PerlIO_clearerr(rsfp);
299 else if (rsfp && (rsfp != fp))
316 while (*s == ' ' || *s == '\t') s++;
317 if (strnEQ(s, "line ", 5)) {
326 while (*s == ' ' || *s == '\t')
328 if (*s == '"' && (t = strchr(s+1, '"')))
332 return; /* false alarm */
333 for (t = s; !isSPACE(*t); t++) ;
338 curcop->cop_filegv = gv_fetchfile(s);
340 curcop->cop_filegv = gv_fetchfile(origfilename);
342 curcop->cop_line = atoi(n)-1;
349 if (lex_formbrack && lex_brackets <= lex_formbrack) {
350 while (s < bufend && (*s == ' ' || *s == '\t'))
356 while (s < bufend && isSPACE(*s))
358 if (s < bufend && *s == '#') {
359 while (s < bufend && *s != '\n')
364 if (s < bufend || !rsfp || lex_state != LEX_NORMAL)
366 if ((s = filter_gets(linestr, rsfp, (prevlen = SvCUR(linestr)))) == Nullch) {
367 if (minus_n || minus_p) {
368 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
369 sv_catpv(linestr,";}");
370 minus_n = minus_p = 0;
373 sv_setpv(linestr,";");
374 oldoldbufptr = oldbufptr = bufptr = s = linestart = SvPVX(linestr);
375 bufend = SvPVX(linestr) + SvCUR(linestr);
376 if (preprocess && !in_eval)
377 (void)my_pclose(rsfp);
378 else if ((PerlIO*)rsfp == PerlIO_stdin())
379 PerlIO_clearerr(rsfp);
381 (void)PerlIO_close(rsfp);
385 linestart = bufptr = s + prevlen;
386 bufend = s + SvCUR(linestr);
389 if (perldb && curstash != debstash) {
390 SV *sv = NEWSV(85,0);
392 sv_upgrade(sv, SVt_PVMG);
393 sv_setpvn(sv,bufptr,bufend-bufptr);
394 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
405 if (oldoldbufptr != last_uni)
407 while (isSPACE(*last_uni))
409 for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ;
410 if ((t = strchr(s, '(')) && t < bufptr)
414 warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni);
421 #define UNI(f) return uni(f,s)
431 last_uni = oldbufptr;
442 #endif /* CRIPPLED_CC */
444 #define LOP(f,x) return lop(f,x,s)
456 last_lop = oldbufptr;
473 nexttype[nexttoke] = type;
475 if (lex_state != LEX_KNOWNEXT) {
476 lex_defer = lex_state;
478 lex_state = LEX_KNOWNEXT;
483 force_word(start,token,check_keyword,allow_pack,allow_tick)
484 register char *start;
493 start = skipspace(start);
496 (allow_pack && *s == ':') ||
497 (allow_tick && *s == '\'') )
499 s = scan_word(s, tokenbuf, allow_pack, &len);
500 if (check_keyword && keyword(tokenbuf, len))
502 if (token == METHOD) {
512 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(tokenbuf,0));
513 nextval[nexttoke].opval->op_private |= OPpCONST_BARE;
525 OP* op = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0));
526 nextval[nexttoke].opval = op;
529 op->op_private = OPpCONST_ENTERED;
530 /* XXX see note in pp_entereval() for why we forgo typo
531 warnings if the symbol must be introduced in an eval.
533 gv_fetchpv(s, in_eval ? GV_ADDMULTI : TRUE,
534 kind == '$' ? SVt_PV :
535 kind == '@' ? SVt_PVAV :
536 kind == '%' ? SVt_PVHV :
547 OP *version = Nullop;
551 /* default VERSION number -- GBARR */
556 for( d=s, c = 1; isDIGIT(*d) || *d == '_' || (*d == '.' && c--); d++);
557 if((*d == ';' || isSPACE(*d)) && *(skipspace(d)) != ',') {
559 /* real VERSION number -- GBARR */
560 version = yylval.opval;
564 /* NOTE: The parser sees the package name and the VERSION swapped */
565 nextval[nexttoke].opval = version;
583 s = SvPV_force(sv, len);
587 while (s < send && *s != '\\')
594 if (s + 1 < send && (s[1] == '\\'))
595 s++; /* all that, just for this */
600 SvCUR_set(sv, d - SvPVX(sv));
608 register I32 op_type = yylval.ival;
610 if (op_type == OP_NULL) {
611 yylval.opval = lex_op;
615 if (op_type == OP_CONST || op_type == OP_READLINE) {
616 yylval.opval = (OP*)newSVOP(op_type, 0, q(lex_stuff));
621 sublex_info.super_state = lex_state;
622 sublex_info.sub_inwhat = op_type;
623 sublex_info.sub_op = lex_op;
624 lex_state = LEX_INTERPPUSH;
628 yylval.opval = lex_op;
641 lex_state = sublex_info.super_state;
643 SAVEI32(lex_brackets);
644 SAVEI32(lex_fakebrack);
645 SAVEI32(lex_casemods);
650 SAVEI16(curcop->cop_line);
653 SAVEPPTR(oldoldbufptr);
656 SAVEPPTR(lex_brackstack);
657 SAVEPPTR(lex_casestack);
662 bufend = bufptr = oldbufptr = oldoldbufptr = linestart = SvPVX(linestr);
663 bufend += SvCUR(linestr);
669 New(899, lex_brackstack, 120, char);
670 New(899, lex_casestack, 12, char);
671 SAVEFREEPV(lex_brackstack);
672 SAVEFREEPV(lex_casestack);
674 *lex_casestack = '\0';
676 lex_state = LEX_INTERPCONCAT;
677 curcop->cop_line = multi_start;
679 lex_inwhat = sublex_info.sub_inwhat;
680 if (lex_inwhat == OP_MATCH || lex_inwhat == OP_SUBST)
681 lex_inpat = sublex_info.sub_op;
693 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0));
697 if (lex_casemods) { /* oops, we've got some unbalanced parens */
698 lex_state = LEX_INTERPCASEMOD;
702 /* Is there a right-hand side to take care of? */
703 if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) {
706 bufend = bufptr = oldbufptr = oldoldbufptr = linestart = SvPVX(linestr);
707 bufend += SvCUR(linestr);
713 *lex_casestack = '\0';
715 if (SvCOMPILED(lex_repl)) {
716 lex_state = LEX_INTERPNORMAL;
720 lex_state = LEX_INTERPCONCAT;
726 bufend = SvPVX(linestr);
727 bufend += SvCUR(linestr);
737 register char *send = bufend;
738 SV *sv = NEWSV(93, send - start);
739 register char *s = start;
740 register char *d = SvPVX(sv);
741 bool dorange = FALSE;
745 ? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]} \t\n\r\f\v#"
746 : (lex_inwhat & OP_TRANS)
750 while (s < send || dorange) {
751 if (lex_inwhat == OP_TRANS) {
756 SvGROW(sv, SvLEN(sv) + 256);
760 for (i = (U8)*d; i <= max; i++)
765 else if (*s == '-' && s+1 < send && s != start) {
770 else if (*s == '(' && lex_inpat && s[1] == '?' && s[2] == '#') {
771 while (s < send && *s != ')')
774 else if (*s == '#' && lex_inpat &&
775 ((PMOP*)lex_inpat)->op_pmflags & PMf_EXTENDED) {
776 while (s+1 < send && *s != '\n')
779 else if (*s == '@' && s[1] && (isALNUM(s[1]) || strchr(":'{$", s[1])))
781 else if (*s == '$') {
782 if (!lex_inpat) /* not a regexp, so $ must be var */
784 if (s + 1 < send && !strchr(")| \n\t", s[1]))
785 break; /* in regexp, $ might be tail anchor */
787 if (*s == '\\' && s+1 < send) {
789 if (*s && strchr(leave, *s)) {
794 if (lex_inwhat == OP_SUBST && !lex_inpat &&
795 isDIGIT(*s) && *s != '0' && !isDIGIT(s[1]))
798 warn("\\%c better written as $%c", *s, *s);
802 if (lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) {
808 if (lex_inwhat == OP_TRANS) {
816 case '0': case '1': case '2': case '3':
817 case '4': case '5': case '6': case '7':
818 *d++ = scan_oct(s, 3, &len);
822 *d++ = scan_hex(++s, 2, &len);
858 SvCUR_set(sv, d - SvPVX(sv));
861 if (SvCUR(sv) + 5 < SvLEN(sv)) {
862 SvLEN_set(sv, SvCUR(sv) + 1);
863 Renew(SvPVX(sv), SvLEN(sv), char);
866 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
872 /* This is the one truly awful dwimmer necessary to conflate C and sed. */
879 if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{'))
881 if (*s != '{' && *s != '[')
886 /* In a pattern, so maybe we have {n,m}. */
903 /* On the other hand, maybe we have a character class */
906 if (*s == ']' || *s == '^')
909 int weight = 2; /* let's weigh the evidence */
911 unsigned char un_char = 0, last_un_char;
912 char *send = strchr(s,']');
915 if (!send) /* has to be an expression */
921 else if (isDIGIT(*s)) {
923 if (isDIGIT(s[1]) && s[2] == ']')
929 for (; s < send; s++) {
930 last_un_char = un_char;
931 un_char = (unsigned char)*s;
936 weight -= seen[un_char] * 10;
938 scan_ident(s,send,tmpbuf,FALSE);
939 if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV))
944 else if (*s == '$' && s[1] &&
945 strchr("[#!%*<>()-=",s[1])) {
946 if (/*{*/ strchr("])} =",s[2]))
955 if (strchr("wds]",s[1]))
957 else if (seen['\''] || seen['"'])
959 else if (strchr("rnftbxcav",s[1]))
961 else if (isDIGIT(s[1])) {
963 while (s[1] && isDIGIT(s[1]))
973 if (strchr("aA01! ",last_un_char))
975 if (strchr("zZ79~",s[1]))
979 if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) &&
980 isALPHA(*s) && s[1] && isALPHA(s[1])) {
985 if (keyword(tmpbuf, d - tmpbuf))
988 if (un_char == last_un_char + 1)
990 weight -= seen[un_char];
995 if (weight >= 0) /* probably a character class */
1003 intuit_method(start,gv)
1007 char *s = start + (*start == '$');
1018 s = scan_word(s, tmpbuf, TRUE, &len);
1019 if (*start == '$') {
1020 if (gv || last_lop_op == OP_PRINT || isUPPER(*tokenbuf))
1025 return *s == '(' ? FUNCMETH : METHOD;
1027 if (!keyword(tmpbuf, len)) {
1028 indirgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVCV);
1029 if (indirgv && GvCV(indirgv))
1031 /* filehandle or package name makes it a method */
1032 if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) {
1034 if ((bufend - s) >= 2 && *s == '=' && *(s+1) == '>')
1035 return 0; /* no assumptions -- "=>" quotes bearword */
1036 nextval[nexttoke].opval =
1037 (OP*)newSVOP(OP_CONST, 0,
1039 nextval[nexttoke].opval->op_private =
1044 return *s == '(' ? FUNCMETH : METHOD;
1054 char *pdb = getenv("PERL5DB");
1058 return "BEGIN { require 'perl5db.pl' }";
1064 /* Encoded script support. filter_add() effectively inserts a
1065 * 'pre-processing' function into the current source input stream.
1066 * Note that the filter function only applies to the current source file
1067 * (e.g., it will not affect files 'require'd or 'use'd by this one).
1069 * The datasv parameter (which may be NULL) can be used to pass
1070 * private data to this instance of the filter. The filter function
1071 * can recover the SV using the FILTER_DATA macro and use it to
1072 * store private buffers and state information.
1074 * The supplied datasv parameter is upgraded to a PVIO type
1075 * and the IoDIRP field is used to store the function pointer.
1076 * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for
1077 * private use must be set using malloc'd pointers.
1079 static int filter_debug = 0;
1082 filter_add(funcp, datasv)
1086 if (!funcp){ /* temporary handy debugging hack to be deleted */
1087 filter_debug = atoi((char*)datasv);
1091 rsfp_filters = newAV();
1094 if (!SvUPGRADE(datasv, SVt_PVIO))
1095 die("Can't upgrade filter_add data to SVt_PVIO");
1096 IoDIRP(datasv) = (DIR*)funcp; /* stash funcp into spare field */
1098 warn("filter_add func %lx (%s)", funcp, SvPV(datasv,na));
1099 av_unshift(rsfp_filters, 1);
1100 av_store(rsfp_filters, 0, datasv) ;
1105 /* Delete most recently added instance of this filter function. */
1111 warn("filter_del func %lx", funcp);
1112 if (!rsfp_filters || AvFILL(rsfp_filters)<0)
1114 /* if filter is on top of stack (usual case) just pop it off */
1115 if (IoDIRP(FILTER_DATA(0)) == (void*)funcp){
1116 /* sv_free(av_pop(rsfp_filters)); */
1117 sv_free(av_shift(rsfp_filters));
1121 /* we need to search for the correct entry and clear it */
1122 die("filter_del can only delete in reverse order (currently)");
1126 /* Invoke the n'th filter function for the current rsfp. */
1128 filter_read(idx, buf_sv, maxlen)
1131 int maxlen; /* 0 = read one text line */
1138 if (idx > AvFILL(rsfp_filters)){ /* Any more filters? */
1139 /* Provide a default input filter to make life easy. */
1140 /* Note that we append to the line. This is handy. */
1142 warn("filter_read %d: from rsfp\n", idx);
1146 int old_len = SvCUR(buf_sv) ;
1148 /* ensure buf_sv is large enough */
1149 SvGROW(buf_sv, old_len + maxlen) ;
1150 if ((len = PerlIO_read(rsfp, SvPVX(buf_sv) + old_len, maxlen)) <= 0){
1151 if (PerlIO_error(rsfp))
1152 return -1; /* error */
1154 return 0 ; /* end of file */
1156 SvCUR_set(buf_sv, old_len + len) ;
1159 if (sv_gets(buf_sv, rsfp, SvCUR(buf_sv)) == NULL) {
1160 if (PerlIO_error(rsfp))
1161 return -1; /* error */
1163 return 0 ; /* end of file */
1166 return SvCUR(buf_sv);
1168 /* Skip this filter slot if filter has been deleted */
1169 if ( (datasv = FILTER_DATA(idx)) == &sv_undef){
1171 warn("filter_read %d: skipped (filter deleted)\n", idx);
1172 return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */
1174 /* Get function pointer hidden within datasv */
1175 funcp = (filter_t)IoDIRP(datasv);
1177 warn("filter_read %d: via function %lx (%s)\n",
1178 idx, funcp, SvPV(datasv,na));
1179 /* Call function. The function is expected to */
1180 /* call "FILTER_READ(idx+1, buf_sv)" first. */
1181 /* Return: <0:error, =0:eof, >0:not eof */
1182 return (*funcp)(idx, buf_sv, maxlen);
1186 filter_gets(sv,fp, append)
1188 register PerlIO *fp;
1194 SvCUR_set(sv, 0); /* start with empty line */
1195 if (FILTER_READ(0, sv, 0) > 0)
1196 return ( SvPVX(sv) ) ;
1201 return (sv_gets(sv, fp, append));
1207 static char* exp_name[] =
1208 { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "TERMBLOCK" };
1211 extern int yychar; /* last token */
1221 if (pending_ident) {
1222 char pit = pending_ident;
1226 if (strchr(tokenbuf,':'))
1227 croak(no_myglob,tokenbuf);
1228 yylval.opval = newOP(OP_PADANY, 0);
1229 yylval.opval->op_targ = pad_allocmy(tokenbuf);
1233 if (!strchr(tokenbuf,':') && (tmp = pad_findmy(tokenbuf))) {
1234 if (last_lop_op == OP_SORT &&
1235 tokenbuf[0] == '$' &&
1236 (tokenbuf[1] == 'a' || tokenbuf[1] == 'b')
1239 for (d = in_eval ? oldoldbufptr : linestart;
1240 d < bufend && *d != '\n';
1243 if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) {
1244 croak("Can't use \"my %s\" in sort comparison",
1250 yylval.opval = newOP(OP_PADANY, 0);
1251 yylval.opval->op_targ = tmp;
1255 /* Force them to make up their mind on "@foo". */
1256 if (pit == '@' && lex_state != LEX_NORMAL && !lex_brackets) {
1257 GV *gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV);
1258 if (!gv || ((tokenbuf[0] == '@') ? !GvAV(gv) : !GvHV(gv))) {
1260 sprintf(tmpbuf, "Literal %s now requires backslash", tokenbuf);
1265 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf+1, 0));
1266 yylval.opval->op_private = OPpCONST_ENTERED;
1267 gv_fetchpv(tokenbuf+1, in_eval ? GV_ADDMULTI : TRUE,
1268 ((tokenbuf[0] == '$') ? SVt_PV
1269 : (tokenbuf[0] == '@') ? SVt_PVAV
1274 switch (lex_state) {
1276 case LEX_NORMAL: /* Some compilers will produce faster */
1277 case LEX_INTERPNORMAL: /* code if we comment these out. */
1283 yylval = nextval[nexttoke];
1285 lex_state = lex_defer;
1286 expect = lex_expect;
1287 lex_defer = LEX_NORMAL;
1289 return(nexttype[nexttoke]);
1291 case LEX_INTERPCASEMOD:
1293 if (bufptr != bufend && *bufptr != '\\')
1294 croak("panic: INTERPCASEMOD");
1296 if (bufptr == bufend || bufptr[1] == 'E') {
1299 oldmod = lex_casestack[--lex_casemods];
1300 lex_casestack[lex_casemods] = '\0';
1301 if (bufptr != bufend && strchr("LUQ", oldmod)) {
1303 lex_state = LEX_INTERPCONCAT;
1307 if (bufptr != bufend)
1309 lex_state = LEX_INTERPCONCAT;
1314 if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3))
1315 tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */
1316 if (strchr("LU", *s) &&
1317 (strchr(lex_casestack, 'L') || strchr(lex_casestack, 'U')))
1319 lex_casestack[--lex_casemods] = '\0';
1322 if (lex_casemods > 10) {
1323 char* newlb = Renew(lex_casestack, lex_casemods + 2, char);
1324 if (newlb != lex_casestack) {
1326 lex_casestack = newlb;
1329 lex_casestack[lex_casemods++] = *s;
1330 lex_casestack[lex_casemods] = '\0';
1331 lex_state = LEX_INTERPCONCAT;
1332 nextval[nexttoke].ival = 0;
1335 nextval[nexttoke].ival = OP_LCFIRST;
1337 nextval[nexttoke].ival = OP_UCFIRST;
1339 nextval[nexttoke].ival = OP_LC;
1341 nextval[nexttoke].ival = OP_UC;
1343 nextval[nexttoke].ival = OP_QUOTEMETA;
1345 croak("panic: yylex");
1357 case LEX_INTERPPUSH:
1358 return sublex_push();
1360 case LEX_INTERPSTART:
1361 if (bufptr == bufend)
1362 return sublex_done();
1364 lex_dojoin = (*bufptr == '@');
1365 lex_state = LEX_INTERPNORMAL;
1367 nextval[nexttoke].ival = 0;
1369 force_ident("\"", '$');
1370 nextval[nexttoke].ival = 0;
1372 nextval[nexttoke].ival = 0;
1374 nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */
1385 case LEX_INTERPENDMAYBE:
1386 if (intuit_more(bufptr)) {
1387 lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */
1395 lex_state = LEX_INTERPCONCAT;
1399 case LEX_INTERPCONCAT:
1402 croak("panic: INTERPCONCAT");
1404 if (bufptr == bufend)
1405 return sublex_done();
1407 if (SvIVX(linestr) == '\'') {
1408 SV *sv = newSVsv(linestr);
1411 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
1415 s = scan_const(bufptr);
1417 lex_state = LEX_INTERPCASEMOD;
1419 lex_state = LEX_INTERPSTART;
1423 nextval[nexttoke] = yylval;
1436 lex_state = LEX_NORMAL;
1437 s = scan_formline(bufptr);
1444 oldoldbufptr = oldbufptr;
1447 PerlIO_printf(PerlIO_stderr(), "### Tokener expecting %s at %s\n", exp_name[expect], s);
1453 warn("Unrecognized character \\%03o ignored", *s++ & 255);
1457 goto fake_eof; /* emulate EOF on ^D or ^Z */
1463 yyerror("Missing right bracket");
1467 goto retry; /* ignore stray nulls */
1470 if (!in_eval && !preambled) {
1472 sv_setpv(linestr,incl_perldb());
1474 sv_catpv(linestr,";");
1476 while(AvFILL(preambleav) >= 0) {
1477 SV *tmpsv = av_shift(preambleav);
1478 sv_catsv(linestr, tmpsv);
1479 sv_catpv(linestr, ";");
1482 sv_free((SV*)preambleav);
1485 if (minus_n || minus_p) {
1486 sv_catpv(linestr, "LINE: while (<>) {");
1488 sv_catpv(linestr,"chomp;");
1492 if ( splitstr[0] == '/' ||
1493 splitstr[0] == '\'' ||
1494 splitstr[0] == '"' )
1495 sprintf( tmpbuf1, "@F=split(%s);", splitstr );
1497 sprintf( tmpbuf1, "@F=split('%s');", splitstr );
1498 sv_catpv(linestr,tmpbuf1);
1501 sv_catpv(linestr,"@F=split(' ');");
1504 sv_catpv(linestr, "\n");
1505 oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
1506 bufend = SvPVX(linestr) + SvCUR(linestr);
1507 if (perldb && curstash != debstash) {
1508 SV *sv = NEWSV(85,0);
1510 sv_upgrade(sv, SVt_PVMG);
1511 sv_setsv(sv,linestr);
1512 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1517 if ((s = filter_gets(linestr, rsfp, 0)) == Nullch) {
1520 if (preprocess && !in_eval)
1521 (void)my_pclose(rsfp);
1522 else if ((PerlIO *)rsfp == PerlIO_stdin())
1523 PerlIO_clearerr(rsfp);
1525 (void)PerlIO_close(rsfp);
1528 if (!in_eval && (minus_n || minus_p)) {
1529 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
1530 sv_catpv(linestr,";}");
1531 oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
1532 bufend = SvPVX(linestr) + SvCUR(linestr);
1533 minus_n = minus_p = 0;
1536 oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
1537 sv_setpv(linestr,"");
1538 TOKEN(';'); /* not infinite loop because rsfp is NULL now */
1541 if (*s == '#' && s[1] == '!' && instr(s,"perl"))
1544 /* Incest with pod. */
1545 if (*s == '=' && strnEQ(s, "=cut", 4)) {
1546 sv_setpv(linestr, "");
1547 oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
1548 bufend = SvPVX(linestr) + SvCUR(linestr);
1553 } while (doextract);
1554 oldoldbufptr = oldbufptr = bufptr = linestart = s;
1555 if (perldb && curstash != debstash) {
1556 SV *sv = NEWSV(85,0);
1558 sv_upgrade(sv, SVt_PVMG);
1559 sv_setsv(sv,linestr);
1560 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1562 bufend = SvPVX(linestr) + SvCUR(linestr);
1563 if (curcop->cop_line == 1) {
1564 while (s < bufend && isSPACE(*s))
1566 if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */
1568 if (!in_eval && *s == '#' && s[1] == '!') {
1569 d = instr(s,"perl -");
1571 d = instr(s,"perl");
1574 !instr(s,"indir") &&
1575 instr(origargv[0],"perl"))
1584 while (s < bufend && !isSPACE(*s))
1587 while (s < bufend && isSPACE(*s))
1590 Newz(899,newargv,origargc+3,char*);
1592 while (s < bufend && !isSPACE(*s))
1595 Copy(origargv+1, newargv+2, origargc+1, char*);
1601 croak("Can't exec %s", cmd);
1604 int oldpdb = perldb;
1608 while (*d && !isSPACE(*d)) d++;
1609 while (*d == ' ' || *d == '\t') d++;
1612 while (d = moreswitches(d)) ;
1613 if (perldb && !oldpdb ||
1614 ( minus_n || minus_p ) && !(oldn || oldp) )
1615 /* if we have already added "LINE: while (<>) {",
1616 we must not do it again */
1618 sv_setpv(linestr, "");
1619 oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
1620 bufend = SvPVX(linestr) + SvCUR(linestr);
1623 (void)gv_fetchfile(origfilename);
1630 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1632 lex_state = LEX_FORMLINE;
1636 case ' ': case '\t': case '\f': case '\r': case 013:
1641 if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) {
1643 while (s < d && *s != '\n')
1648 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1650 lex_state = LEX_FORMLINE;
1660 if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) {
1665 while (s < bufend && (*s == ' ' || *s == '\t'))
1668 if (strnEQ(s,"=>",2)) {
1670 warn("Ambiguous use of -%c => resolved to \"-%c\" =>",
1672 s = force_word(bufptr,WORD,FALSE,FALSE,FALSE);
1673 OPERATOR('-'); /* unary minus */
1675 last_uni = oldbufptr;
1676 last_lop_op = OP_FTEREAD; /* good enough */
1678 case 'r': FTST(OP_FTEREAD);
1679 case 'w': FTST(OP_FTEWRITE);
1680 case 'x': FTST(OP_FTEEXEC);
1681 case 'o': FTST(OP_FTEOWNED);
1682 case 'R': FTST(OP_FTRREAD);
1683 case 'W': FTST(OP_FTRWRITE);
1684 case 'X': FTST(OP_FTREXEC);
1685 case 'O': FTST(OP_FTROWNED);
1686 case 'e': FTST(OP_FTIS);
1687 case 'z': FTST(OP_FTZERO);
1688 case 's': FTST(OP_FTSIZE);
1689 case 'f': FTST(OP_FTFILE);
1690 case 'd': FTST(OP_FTDIR);
1691 case 'l': FTST(OP_FTLINK);
1692 case 'p': FTST(OP_FTPIPE);
1693 case 'S': FTST(OP_FTSOCK);
1694 case 'u': FTST(OP_FTSUID);
1695 case 'g': FTST(OP_FTSGID);
1696 case 'k': FTST(OP_FTSVTX);
1697 case 'b': FTST(OP_FTBLK);
1698 case 'c': FTST(OP_FTCHR);
1699 case 't': FTST(OP_FTTTY);
1700 case 'T': FTST(OP_FTTEXT);
1701 case 'B': FTST(OP_FTBINARY);
1702 case 'M': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTMTIME);
1703 case 'A': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTATIME);
1704 case 'C': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTCTIME);
1706 croak("Unrecognized file test: -%c", tmp);
1713 if (expect == XOPERATOR)
1718 else if (*s == '>') {
1721 if (isIDFIRST(*s)) {
1722 s = force_word(s,METHOD,FALSE,TRUE,FALSE);
1730 if (expect == XOPERATOR)
1733 if (isSPACE(*s) || !isSPACE(*bufptr))
1735 OPERATOR('-'); /* unary minus */
1742 if (expect == XOPERATOR)
1747 if (expect == XOPERATOR)
1750 if (isSPACE(*s) || !isSPACE(*bufptr))
1756 if (expect != XOPERATOR) {
1757 s = scan_ident(s, bufend, tokenbuf, TRUE);
1759 force_ident(tokenbuf, '*');
1772 if (expect == XOPERATOR) {
1777 s = scan_ident(s, bufend, tokenbuf+1, TRUE);
1780 yyerror("Final % should be \\% or %name");
1783 pending_ident = '%';
1805 if (last_lop == oldoldbufptr || last_uni == oldoldbufptr)
1806 oldbufptr = oldoldbufptr; /* allow print(STDOUT 123) */
1811 if (curcop->cop_line < copline)
1812 copline = curcop->cop_line;
1823 if (lex_brackets <= 0)
1824 yyerror("Unmatched right bracket");
1827 if (lex_state == LEX_INTERPNORMAL) {
1828 if (lex_brackets == 0) {
1829 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
1830 lex_state = LEX_INTERPEND;
1837 if (lex_brackets > 100) {
1838 char* newlb = Renew(lex_brackstack, lex_brackets + 1, char);
1839 if (newlb != lex_brackstack) {
1841 lex_brackstack = newlb;
1846 if (lex_formbrack) {
1850 if (oldoldbufptr == last_lop)
1851 lex_brackstack[lex_brackets++] = XTERM;
1853 lex_brackstack[lex_brackets++] = XOPERATOR;
1854 OPERATOR(HASHBRACK);
1857 while (s < bufend && (*s == ' ' || *s == '\t'))
1859 if (s < bufend && isIDFIRST(*s)) {
1860 d = scan_word(s, tokenbuf, FALSE, &len);
1861 while (d < bufend && (*d == ' ' || *d == '\t'))
1865 (keyword(tokenbuf, len) ||
1866 perl_get_cv(tokenbuf, FALSE) ))
1867 warn("Ambiguous use of {%s} resolved to {\"%s\"}",
1868 tokenbuf, tokenbuf);
1869 s = force_word(s,WORD,FALSE,TRUE,FALSE);
1874 lex_brackstack[lex_brackets++] = XSTATE;
1878 lex_brackstack[lex_brackets++] = XOPERATOR;
1883 if (oldoldbufptr == last_lop)
1884 lex_brackstack[lex_brackets++] = XTERM;
1886 lex_brackstack[lex_brackets++] = XOPERATOR;
1889 OPERATOR(HASHBRACK);
1891 for (t = s; t < bufend && isALNUM(*t); t++) ;
1893 else if (*s == '\'' || *s == '"') {
1900 while (t < bufend && isSPACE(*t))
1902 if ((*t == ',' && !isLOWER(*s)) || (*t == '=' && t[1] == '>'))
1903 OPERATOR(HASHBRACK);
1907 lex_brackstack[lex_brackets-1] = XSTATE;
1913 yylval.ival = curcop->cop_line;
1914 if (isSPACE(*s) || *s == '#')
1915 copline = NOLINE; /* invalidate current command line number */
1920 if (lex_brackets <= 0)
1921 yyerror("Unmatched right bracket");
1923 expect = (expectation)lex_brackstack[--lex_brackets];
1924 if (lex_brackets < lex_formbrack)
1926 if (lex_state == LEX_INTERPNORMAL) {
1927 if (lex_brackets == 0) {
1928 if (lex_fakebrack) {
1929 lex_state = LEX_INTERPEND;
1931 return yylex(); /* ignore fake brackets */
1933 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
1934 lex_state = LEX_INTERPEND;
1937 if (lex_brackets < lex_fakebrack) {
1940 return yylex(); /* ignore fake brackets */
1950 if (expect == XOPERATOR) {
1951 if (dowarn && isALPHA(*s) && bufptr == linestart) {
1959 s = scan_ident(s-1, bufend, tokenbuf, TRUE);
1962 force_ident(tokenbuf, '&');
1966 yylval.ival = (OPpENTERSUB_AMPER<<8);
1985 if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp))
1986 warn("Reversed %c= operator",tmp);
1988 if (expect == XSTATE && isALPHA(tmp) &&
1989 (s == linestart+1 || s[-2] == '\n') )
1991 if (in_eval && !rsfp) {
1996 if (strnEQ(s,"=cut",4)) {
2013 if (lex_brackets < lex_formbrack) {
2015 for (t = s; *t == ' ' || *t == '\t'; t++) ;
2016 if (*t == '\n' || *t == '#') {
2034 if (expect != XOPERATOR) {
2035 if (s[1] != '<' && !strchr(s,'>'))
2038 s = scan_heredoc(s);
2040 s = scan_inputsymbol(s);
2041 TERM(sublex_start());
2046 SHop(OP_LEFT_SHIFT);
2060 SHop(OP_RIGHT_SHIFT);
2069 if (expect == XOPERATOR) {
2070 if (lex_formbrack && lex_brackets == lex_formbrack) {
2073 return ','; /* grandfather non-comma-format format */
2077 if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) {
2078 if (expect == XOPERATOR)
2079 no_op("Array length", bufptr);
2081 s = scan_ident(s+1, bufend, tokenbuf+1, FALSE);
2085 pending_ident = '#';
2089 if (expect == XOPERATOR)
2090 no_op("Scalar", bufptr);
2092 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
2095 yyerror("Final $ should be \\$ or $name");
2099 /* This kludge not intended to be bulletproof. */
2100 if (tokenbuf[1] == '[' && !tokenbuf[2]) {
2101 yylval.opval = newSVOP(OP_CONST, 0,
2102 newSViv((IV)compiling.cop_arybase));
2103 yylval.opval->op_private = OPpCONST_ARYBASE;
2108 if (lex_state == LEX_NORMAL)
2111 if ((expect != XREF || oldoldbufptr == last_lop) && intuit_more(s)) {
2117 isSPACE(*t) || isALNUM(*t) || *t == '$';
2120 bufptr = skipspace(bufptr);
2121 while (t < bufend && *t != ']')
2123 warn("Multidimensional syntax %.*s not supported",
2124 (t - bufptr) + 1, bufptr);
2128 else if (*s == '{') {
2130 if (dowarn && strEQ(tokenbuf+1, "SIG") &&
2131 (t = strchr(s, '}')) && (t = strchr(t, '=')))
2135 for (t++; isSPACE(*t); t++) ;
2136 if (isIDFIRST(*t)) {
2137 t = scan_word(t, tmpbuf, TRUE, &len);
2138 if (*t != '(' && perl_get_cv(tmpbuf, FALSE))
2139 warn("You need to quote \"%s\"", tmpbuf);
2146 if (lex_state == LEX_NORMAL && isSPACE(*d)) {
2147 bool islop = (last_lop == oldoldbufptr);
2148 if (!islop || last_lop_op == OP_GREPSTART)
2150 else if (strchr("$@\"'`q", *s))
2151 expect = XTERM; /* e.g. print $fh "foo" */
2152 else if (strchr("&*<%", *s) && isIDFIRST(s[1]))
2153 expect = XTERM; /* e.g. print $fh &sub */
2154 else if (isDIGIT(*s))
2155 expect = XTERM; /* e.g. print $fh 3 */
2156 else if (*s == '.' && isDIGIT(s[1]))
2157 expect = XTERM; /* e.g. print $fh .3 */
2158 else if (strchr("/?-+", *s) && !isSPACE(s[1]))
2159 expect = XTERM; /* e.g. print $fh -1 */
2160 else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]))
2161 expect = XTERM; /* print $fh <<"EOF" */
2163 pending_ident = '$';
2167 if (expect == XOPERATOR)
2170 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
2173 yyerror("Final @ should be \\@ or @name");
2176 if (lex_state == LEX_NORMAL)
2178 if ((expect != XREF || oldoldbufptr == last_lop) && intuit_more(s)) {
2182 /* Warn about @ where they meant $. */
2184 if (*s == '[' || *s == '{') {
2186 while (*t && (isALNUM(*t) || strchr(" \t$#+-'\"", *t)))
2188 if (*t == '}' || *t == ']') {
2190 bufptr = skipspace(bufptr);
2191 warn("Scalar value %.*s better written as $%.*s",
2192 t-bufptr, bufptr, t-bufptr-1, bufptr+1);
2197 pending_ident = '@';
2200 case '/': /* may either be division or pattern */
2201 case '?': /* may either be conditional or pattern */
2202 if (expect != XOPERATOR) {
2205 TERM(sublex_start());
2213 if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' &&
2214 (s == linestart || s[-1] == '\n') ) {
2219 if (expect == XOPERATOR || !isDIGIT(s[1])) {
2225 yylval.ival = OPf_SPECIAL;
2231 if (expect != XOPERATOR)
2236 case '0': case '1': case '2': case '3': case '4':
2237 case '5': case '6': case '7': case '8': case '9':
2239 if (expect == XOPERATOR)
2245 if (expect == XOPERATOR) {
2246 if (lex_formbrack && lex_brackets == lex_formbrack) {
2249 return ','; /* grandfather non-comma-format format */
2255 missingterm((char*)0);
2256 yylval.ival = OP_CONST;
2257 TERM(sublex_start());
2261 if (expect == XOPERATOR) {
2262 if (lex_formbrack && lex_brackets == lex_formbrack) {
2265 return ','; /* grandfather non-comma-format format */
2271 missingterm((char*)0);
2272 yylval.ival = OP_CONST;
2273 for (d = SvPV(lex_stuff, len); len; len--, d++) {
2274 if (*d == '$' || *d == '@' || *d == '\\') {
2275 yylval.ival = OP_STRINGIFY;
2279 TERM(sublex_start());
2283 if (expect == XOPERATOR)
2284 no_op("Backticks",s);
2286 missingterm((char*)0);
2287 yylval.ival = OP_BACKTICK;
2289 TERM(sublex_start());
2293 if (dowarn && lex_inwhat && isDIGIT(*s))
2294 warn("Can't use \\%c to mean $%c in expression", *s, *s);
2295 if (expect == XOPERATOR)
2296 no_op("Backslash",s);
2300 if (isDIGIT(s[1]) && expect == XOPERATOR) {
2336 s = scan_word(s, tokenbuf, FALSE, &len);
2338 if (*s == ':' && s[1] == ':' && strNE(tokenbuf, "CORE"))
2342 while (d < bufend && isSPACE(*d))
2343 d++; /* no comments skipped here, or s### is misparsed */
2345 /* Is this a label? */
2346 if (expect == XSTATE && d < bufend && *d == ':' && *(d + 1) != ':') {
2347 if (len == 1 && strchr("syq", tokenbuf[0]) ||
2348 len == 2 && ((tokenbuf[0] == 't' && tokenbuf[1] == 'r') ||
2349 (tokenbuf[0] == 'q' &&
2350 strchr("qwx", tokenbuf[1]))))
2354 yylval.pval = savepv(tokenbuf);
2360 /* Check for keywords */
2361 tmp = keyword(tokenbuf, len);
2363 /* Is this a word before a => operator? */
2364 if (strnEQ(d,"=>",2)) {
2366 if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE)))
2367 warn("Ambiguous use of %s => resolved to \"%s\" =>",
2368 tokenbuf, tokenbuf);
2369 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2370 yylval.opval->op_private = OPpCONST_BARE;
2374 if (tmp < 0) { /* second-class keyword? */
2376 if (expect != XOPERATOR &&
2377 (*s != ':' || s[1] != ':') &&
2378 (gv = gv_fetchpv(tokenbuf, FALSE, SVt_PVCV)) &&
2390 default: /* not a keyword */
2393 char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]);
2395 /* Get the rest if it looks like a package qualifier */
2397 if (*s == '\'' || *s == ':' && s[1] == ':') {
2398 s = scan_word(s, tokenbuf + len, TRUE, &len);
2400 croak("Bad name after %s::", tokenbuf);
2403 if (expect == XOPERATOR) {
2404 if (bufptr == linestart) {
2410 no_op("Bare word",s);
2413 /* Look for a subroutine with this name in current package. */
2415 gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV);
2417 /* Presume this is going to be a bareword of some sort. */
2420 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2421 yylval.opval->op_private = OPpCONST_BARE;
2423 /* See if it's the indirect object for a list operator. */
2426 oldoldbufptr < bufptr &&
2427 (oldoldbufptr == last_lop || oldoldbufptr == last_uni) &&
2428 /* NO SKIPSPACE BEFORE HERE! */
2430 (opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) )
2432 bool immediate_paren = *s == '(';
2434 /* (Now we can afford to cross potential line boundary.) */
2437 /* Two barewords in a row may indicate method call. */
2439 if ((isALPHA(*s) || *s == '$') && (tmp=intuit_method(s,gv)))
2442 /* If not a declared subroutine, it's an indirect object. */
2443 /* (But it's an indir obj regardless for sort.) */
2445 if ((last_lop_op == OP_SORT ||
2446 (!immediate_paren && (!gv || !GvCV(gv))) ) &&
2447 (last_lop_op != OP_MAPSTART && last_lop_op != OP_GREPSTART)){
2448 expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR;
2453 /* If followed by a paren, it's certainly a subroutine. */
2459 nextval[nexttoke].opval = yylval.opval;
2466 /* If followed by var or block, call it a method (unless sub) */
2468 if ((*s == '$' || *s == '{') && (!gv || !GvCV(gv))) {
2469 last_lop = oldbufptr;
2470 last_lop_op = OP_METHOD;
2474 /* If followed by a bareword, see if it looks like indir obj. */
2476 if ((isALPHA(*s) || *s == '$') && (tmp = intuit_method(s,gv)))
2479 /* Not a method, so call it a subroutine (if defined) */
2481 if (gv && GvCV(gv)) {
2484 nextval[nexttoke].opval = yylval.opval;
2490 if (lastchar == '-')
2491 warn("Ambiguous use of -%s resolved as -&%s()",
2492 tokenbuf, tokenbuf);
2493 last_lop = oldbufptr;
2494 last_lop_op = OP_ENTERSUB;
2495 /* Check for a constant sub */
2497 SV *sv = cv_const_sv(cv);
2499 SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv);
2500 ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc(sv);
2501 yylval.opval->op_private = 0;
2506 /* Resolve to GV now. */
2507 op_free(yylval.opval);
2508 yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv));
2509 /* Is there a prototype? */
2512 char *proto = SvPV((SV*)cv, len);
2515 if (strEQ(proto, "$"))
2517 if (*proto == '&' && *s == '{') {
2518 sv_setpv(subname,"__ANON__");
2522 nextval[nexttoke].opval = yylval.opval;
2528 if (hints & HINT_STRICT_SUBS &&
2531 last_lop_op != OP_TRUNCATE && /* S/F prototype in opcode.pl */
2532 last_lop_op != OP_ACCEPT &&
2533 last_lop_op != OP_PIPE_OP &&
2534 last_lop_op != OP_SOCKPAIR)
2537 "Bareword \"%s\" not allowed while \"strict subs\" in use",
2542 /* Call it a bare word */
2546 if (lastchar != '-') {
2547 for (d = tokenbuf; *d && isLOWER(*d); d++) ;
2549 warn(warn_reserved, tokenbuf);
2552 if (lastchar && strchr("*%&", lastchar)) {
2553 warn("Operator or semicolon missing before %c%s",
2554 lastchar, tokenbuf);
2555 warn("Ambiguous use of %c resolved as operator %c",
2556 lastchar, lastchar);
2562 case KEY___FILE__: {
2563 if (tokenbuf[2] == 'L')
2564 (void)sprintf(tokenbuf,"%ld",(long)curcop->cop_line);
2566 strcpy(tokenbuf, SvPVX(GvSV(curcop->cop_filegv)));
2567 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2576 if (rsfp && (!in_eval || tokenbuf[2] == 'D')) {
2578 char *pname = "main";
2579 if (tokenbuf[2] == 'D')
2580 pname = HvNAME(curstash ? curstash : defstash);
2581 sprintf(dname,"%s::DATA", pname);
2582 gv = gv_fetchpv(dname,TRUE, SVt_PVIO);
2585 GvIOp(gv) = newIO();
2586 IoIFP(GvIOp(gv)) = rsfp;
2587 #if defined(HAS_FCNTL) && defined(F_SETFD)
2589 int fd = PerlIO_fileno(rsfp);
2590 fcntl(fd,F_SETFD,fd >= 3);
2593 /* Mark this internal pseudo-handle as clean */
2594 IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT;
2596 IoTYPE(GvIOp(gv)) = '|';
2597 else if ((PerlIO*)rsfp == PerlIO_stdin())
2598 IoTYPE(GvIOp(gv)) = '-';
2600 IoTYPE(GvIOp(gv)) = '<';
2610 if (expect == XSTATE) {
2617 if (*s == ':' && s[1] == ':') {
2620 s = scan_word(s, tokenbuf, FALSE, &len);
2621 tmp = keyword(tokenbuf, len);
2635 LOP(OP_ACCEPT,XTERM);
2641 LOP(OP_ATAN2,XTERM);
2650 LOP(OP_BLESS,XTERM);
2659 (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */
2679 LOP(OP_CRYPT,XTERM);
2683 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
2684 if (*d != '0' && isDIGIT(*d))
2685 yywarn("chmod: mode argument is missing initial 0");
2687 LOP(OP_CHMOD,XTERM);
2690 LOP(OP_CHOWN,XTERM);
2693 LOP(OP_CONNECT,XTERM);
2709 s = force_word(s,WORD,FALSE,TRUE,FALSE);
2713 hints |= HINT_BLOCK_SCOPE;
2723 gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV);
2724 LOP(OP_DBMOPEN,XTERM);
2730 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2737 yylval.ival = curcop->cop_line;
2751 expect = (*s == '{') ? XTERMBLOCK : XTERM;
2752 UNIBRACK(OP_ENTEREVAL);
2767 case KEY_endhostent:
2773 case KEY_endservent:
2776 case KEY_endprotoent:
2787 yylval.ival = curcop->cop_line;
2789 if (isIDFIRST(*s)) {
2791 if ((bufend - p) >= 3 &&
2792 strnEQ(p, "my", 2) && isSPACE(*(p + 2)))
2796 croak("Missing $ on loop variable");
2801 LOP(OP_FORMLINE,XTERM);
2807 LOP(OP_FCNTL,XTERM);
2813 LOP(OP_FLOCK,XTERM);
2822 LOP(OP_GREPSTART, *s == '(' ? XTERM : XREF);
2825 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2840 case KEY_getpriority:
2841 LOP(OP_GETPRIORITY,XTERM);
2843 case KEY_getprotobyname:
2846 case KEY_getprotobynumber:
2847 LOP(OP_GPBYNUMBER,XTERM);
2849 case KEY_getprotoent:
2861 case KEY_getpeername:
2862 UNI(OP_GETPEERNAME);
2864 case KEY_gethostbyname:
2867 case KEY_gethostbyaddr:
2868 LOP(OP_GHBYADDR,XTERM);
2870 case KEY_gethostent:
2873 case KEY_getnetbyname:
2876 case KEY_getnetbyaddr:
2877 LOP(OP_GNBYADDR,XTERM);
2882 case KEY_getservbyname:
2883 LOP(OP_GSBYNAME,XTERM);
2885 case KEY_getservbyport:
2886 LOP(OP_GSBYPORT,XTERM);
2888 case KEY_getservent:
2891 case KEY_getsockname:
2892 UNI(OP_GETSOCKNAME);
2894 case KEY_getsockopt:
2895 LOP(OP_GSOCKOPT,XTERM);
2917 yylval.ival = curcop->cop_line;
2921 LOP(OP_INDEX,XTERM);
2927 LOP(OP_IOCTL,XTERM);
2939 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2970 LOP(OP_LISTEN,XTERM);
2977 TERM(sublex_start());
2980 LOP(OP_MAPSTART,XREF);
2983 LOP(OP_MKDIR,XTERM);
2986 LOP(OP_MSGCTL,XTERM);
2989 LOP(OP_MSGGET,XTERM);
2992 LOP(OP_MSGRCV,XTERM);
2995 LOP(OP_MSGSND,XTERM);
3002 s = force_word(s,WORD,TRUE,FALSE,FALSE);
3009 if (expect != XSTATE)
3010 yyerror("\"no\" not allowed in expression");
3011 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3012 s = force_version(s);
3021 if (isIDFIRST(*s)) {
3023 for (d = s; isALNUM(*d); d++) ;
3025 if (strchr("|&*+-=!?:.", *t))
3026 warn("Precedence problem: open %.*s should be open(%.*s)",
3032 yylval.ival = OP_OR;
3042 LOP(OP_OPEN_DIR,XTERM);
3045 checkcomma(s,tokenbuf,"filehandle");
3049 checkcomma(s,tokenbuf,"filehandle");
3068 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3072 LOP(OP_PIPE_OP,XTERM);
3077 missingterm((char*)0);
3078 yylval.ival = OP_CONST;
3079 TERM(sublex_start());
3087 missingterm((char*)0);
3088 if (dowarn && SvLEN(lex_stuff)) {
3089 d = SvPV_force(lex_stuff, len);
3090 for (; len; --len, ++d) {
3092 warn("Possible attempt to separate words with commas");
3096 warn("Possible attempt to put comments in qw() list");
3102 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff));
3106 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(" ",1));
3109 yylval.ival = OP_SPLIT;
3113 last_lop = oldbufptr;
3114 last_lop_op = OP_SPLIT;
3120 missingterm((char*)0);
3121 yylval.ival = OP_STRINGIFY;
3122 if (SvIVX(lex_stuff) == '\'')
3123 SvIVX(lex_stuff) = 0; /* qq'$foo' should intepolate */
3124 TERM(sublex_start());
3129 missingterm((char*)0);
3130 yylval.ival = OP_BACKTICK;
3132 TERM(sublex_start());
3139 s = force_word(s,WORD,TRUE,TRUE,FALSE);
3140 if (isIDFIRST(*tokenbuf))
3141 gv_stashpvn(tokenbuf, strlen(tokenbuf), TRUE);
3143 yyerror("<> should be quotes");
3150 s = force_word(s,WORD,TRUE,FALSE,FALSE);
3154 LOP(OP_RENAME,XTERM);
3163 LOP(OP_RINDEX,XTERM);
3186 LOP(OP_REVERSE,XTERM);
3197 TERM(sublex_start());
3199 TOKEN(1); /* force error */
3208 LOP(OP_SELECT,XTERM);
3214 LOP(OP_SEMCTL,XTERM);
3217 LOP(OP_SEMGET,XTERM);
3220 LOP(OP_SEMOP,XTERM);
3226 LOP(OP_SETPGRP,XTERM);
3228 case KEY_setpriority:
3229 LOP(OP_SETPRIORITY,XTERM);
3231 case KEY_sethostent:
3237 case KEY_setservent:
3240 case KEY_setprotoent:
3250 LOP(OP_SEEKDIR,XTERM);
3252 case KEY_setsockopt:
3253 LOP(OP_SSOCKOPT,XTERM);
3259 LOP(OP_SHMCTL,XTERM);
3262 LOP(OP_SHMGET,XTERM);
3265 LOP(OP_SHMREAD,XTERM);
3268 LOP(OP_SHMWRITE,XTERM);
3271 LOP(OP_SHUTDOWN,XTERM);
3280 LOP(OP_SOCKET,XTERM);
3282 case KEY_socketpair:
3283 LOP(OP_SOCKPAIR,XTERM);
3286 checkcomma(s,tokenbuf,"subroutine name");
3288 if (*s == ';' || *s == ')') /* probably a close */
3289 croak("sort is now a reserved word");
3291 s = force_word(s,WORD,TRUE,TRUE,TRUE);
3295 LOP(OP_SPLIT,XTERM);
3298 LOP(OP_SPRINTF,XTERM);
3301 LOP(OP_SPLICE,XTERM);
3317 LOP(OP_SUBSTR,XTERM);
3324 if (isIDFIRST(*s) || *s == '\'' || *s == ':') {
3327 d = scan_word(s, tmpbuf, TRUE, &len);
3328 if (strchr(tmpbuf, ':'))
3329 sv_setpv(subname, tmpbuf);
3331 sv_setsv(subname,curstname);
3332 sv_catpvn(subname,"::",2);
3333 sv_catpvn(subname,tmpbuf,len);
3335 s = force_word(s,WORD,FALSE,TRUE,TRUE);
3339 expect = XTERMBLOCK;
3340 sv_setpv(subname,"?");
3343 if (tmp == KEY_format) {
3346 lex_formbrack = lex_brackets + 1;
3350 /* Look for a prototype */
3355 SvREFCNT_dec(lex_stuff);
3357 croak("Prototype not terminated");
3360 nextval[1] = nextval[0];
3361 nexttype[1] = nexttype[0];
3362 nextval[0].opval = (OP*)newSVOP(OP_CONST, 0, lex_stuff);
3363 nexttype[0] = THING;
3364 if (nexttoke == 1) {
3365 lex_defer = lex_state;
3366 lex_expect = expect;
3367 lex_state = LEX_KNOWNEXT;
3372 if (*SvPV(subname,na) == '?') {
3373 sv_setpv(subname,"__ANON__");
3380 LOP(OP_SYSTEM,XREF);
3383 LOP(OP_SYMLINK,XTERM);
3386 LOP(OP_SYSCALL,XTERM);
3389 LOP(OP_SYSOPEN,XTERM);
3392 LOP(OP_SYSREAD,XTERM);
3395 LOP(OP_SYSWRITE,XTERM);
3399 TERM(sublex_start());
3420 LOP(OP_TRUNCATE,XTERM);
3432 yylval.ival = curcop->cop_line;
3433 PRETERMBLOCK(UNTIL);
3436 yylval.ival = curcop->cop_line;
3437 PRETERMBLOCK(UNLESS);
3440 LOP(OP_UNLINK,XTERM);
3446 LOP(OP_UNPACK,XTERM);
3449 LOP(OP_UTIME,XTERM);
3453 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
3454 if (*d != '0' && isDIGIT(*d))
3455 yywarn("umask: argument is missing initial 0");
3460 LOP(OP_UNSHIFT,XTERM);
3463 if (expect != XSTATE)
3464 yyerror("\"use\" not allowed in expression");
3467 s = force_version(s);
3468 if(*s == ';' || (s = skipspace(s), *s == ';')) {
3469 nextval[nexttoke].opval = Nullop;
3474 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3475 s = force_version(s);
3488 yylval.ival = curcop->cop_line;
3489 PRETERMBLOCK(WHILE);
3492 hints |= HINT_BLOCK_SCOPE;
3499 LOP(OP_WAITPID,XTERM);
3505 gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */
3509 if (expect == XOPERATOR)
3515 yylval.ival = OP_XOR;
3520 TERM(sublex_start());
3533 if (strEQ(d,"__LINE__")) return -KEY___LINE__;
3534 if (strEQ(d,"__FILE__")) return -KEY___FILE__;
3535 if (strEQ(d,"__DATA__")) return KEY___DATA__;
3536 if (strEQ(d,"__END__")) return KEY___END__;
3540 if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD;
3545 if (strEQ(d,"and")) return -KEY_and;
3546 if (strEQ(d,"abs")) return -KEY_abs;
3549 if (strEQ(d,"alarm")) return -KEY_alarm;
3550 if (strEQ(d,"atan2")) return -KEY_atan2;
3553 if (strEQ(d,"accept")) return -KEY_accept;
3558 if (strEQ(d,"BEGIN")) return KEY_BEGIN;
3561 if (strEQ(d,"bless")) return -KEY_bless;
3562 if (strEQ(d,"bind")) return -KEY_bind;
3563 if (strEQ(d,"binmode")) return -KEY_binmode;
3566 if (strEQ(d,"CORE")) return -KEY_CORE;
3571 if (strEQ(d,"cmp")) return -KEY_cmp;
3572 if (strEQ(d,"chr")) return -KEY_chr;
3573 if (strEQ(d,"cos")) return -KEY_cos;
3576 if (strEQ(d,"chop")) return KEY_chop;
3579 if (strEQ(d,"close")) return -KEY_close;
3580 if (strEQ(d,"chdir")) return -KEY_chdir;
3581 if (strEQ(d,"chomp")) return KEY_chomp;
3582 if (strEQ(d,"chmod")) return -KEY_chmod;
3583 if (strEQ(d,"chown")) return -KEY_chown;
3584 if (strEQ(d,"crypt")) return -KEY_crypt;
3587 if (strEQ(d,"chroot")) return -KEY_chroot;
3588 if (strEQ(d,"caller")) return -KEY_caller;
3591 if (strEQ(d,"connect")) return -KEY_connect;
3594 if (strEQ(d,"closedir")) return -KEY_closedir;
3595 if (strEQ(d,"continue")) return -KEY_continue;
3600 if (strEQ(d,"DESTROY")) return KEY_DESTROY;
3605 if (strEQ(d,"do")) return KEY_do;
3608 if (strEQ(d,"die")) return -KEY_die;
3611 if (strEQ(d,"dump")) return -KEY_dump;
3614 if (strEQ(d,"delete")) return KEY_delete;
3617 if (strEQ(d,"defined")) return KEY_defined;
3618 if (strEQ(d,"dbmopen")) return -KEY_dbmopen;
3621 if (strEQ(d,"dbmclose")) return -KEY_dbmclose;
3626 if (strEQ(d,"EQ")) { deprecate(d); return -KEY_eq;}
3627 if (strEQ(d,"END")) return KEY_END;
3632 if (strEQ(d,"eq")) return -KEY_eq;
3635 if (strEQ(d,"eof")) return -KEY_eof;
3636 if (strEQ(d,"exp")) return -KEY_exp;
3639 if (strEQ(d,"else")) return KEY_else;
3640 if (strEQ(d,"exit")) return -KEY_exit;
3641 if (strEQ(d,"eval")) return KEY_eval;
3642 if (strEQ(d,"exec")) return -KEY_exec;
3643 if (strEQ(d,"each")) return KEY_each;
3646 if (strEQ(d,"elsif")) return KEY_elsif;
3649 if (strEQ(d,"exists")) return KEY_exists;
3650 if (strEQ(d,"elseif")) warn("elseif should be elsif");
3653 if (strEQ(d,"endgrent")) return -KEY_endgrent;
3654 if (strEQ(d,"endpwent")) return -KEY_endpwent;
3657 if (strEQ(d,"endnetent")) return -KEY_endnetent;
3660 if (strEQ(d,"endhostent")) return -KEY_endhostent;
3661 if (strEQ(d,"endservent")) return -KEY_endservent;
3664 if (strEQ(d,"endprotoent")) return -KEY_endprotoent;
3671 if (strEQ(d,"for")) return KEY_for;
3674 if (strEQ(d,"fork")) return -KEY_fork;
3677 if (strEQ(d,"fcntl")) return -KEY_fcntl;
3678 if (strEQ(d,"flock")) return -KEY_flock;
3681 if (strEQ(d,"format")) return KEY_format;
3682 if (strEQ(d,"fileno")) return -KEY_fileno;
3685 if (strEQ(d,"foreach")) return KEY_foreach;
3688 if (strEQ(d,"formline")) return -KEY_formline;
3694 if (strEQ(d,"GT")) { deprecate(d); return -KEY_gt;}
3695 if (strEQ(d,"GE")) { deprecate(d); return -KEY_ge;}
3699 if (strnEQ(d,"get",3)) {
3704 if (strEQ(d,"ppid")) return -KEY_getppid;
3705 if (strEQ(d,"pgrp")) return -KEY_getpgrp;
3708 if (strEQ(d,"pwent")) return -KEY_getpwent;
3709 if (strEQ(d,"pwnam")) return -KEY_getpwnam;
3710 if (strEQ(d,"pwuid")) return -KEY_getpwuid;
3713 if (strEQ(d,"peername")) return -KEY_getpeername;
3714 if (strEQ(d,"protoent")) return -KEY_getprotoent;
3715 if (strEQ(d,"priority")) return -KEY_getpriority;
3718 if (strEQ(d,"protobyname")) return -KEY_getprotobyname;
3721 if (strEQ(d,"protobynumber"))return -KEY_getprotobynumber;
3725 else if (*d == 'h') {
3726 if (strEQ(d,"hostbyname")) return -KEY_gethostbyname;
3727 if (strEQ(d,"hostbyaddr")) return -KEY_gethostbyaddr;
3728 if (strEQ(d,"hostent")) return -KEY_gethostent;
3730 else if (*d == 'n') {
3731 if (strEQ(d,"netbyname")) return -KEY_getnetbyname;
3732 if (strEQ(d,"netbyaddr")) return -KEY_getnetbyaddr;
3733 if (strEQ(d,"netent")) return -KEY_getnetent;
3735 else if (*d == 's') {
3736 if (strEQ(d,"servbyname")) return -KEY_getservbyname;
3737 if (strEQ(d,"servbyport")) return -KEY_getservbyport;
3738 if (strEQ(d,"servent")) return -KEY_getservent;
3739 if (strEQ(d,"sockname")) return -KEY_getsockname;
3740 if (strEQ(d,"sockopt")) return -KEY_getsockopt;
3742 else if (*d == 'g') {
3743 if (strEQ(d,"grent")) return -KEY_getgrent;
3744 if (strEQ(d,"grnam")) return -KEY_getgrnam;
3745 if (strEQ(d,"grgid")) return -KEY_getgrgid;
3747 else if (*d == 'l') {
3748 if (strEQ(d,"login")) return -KEY_getlogin;
3750 else if (strEQ(d,"c")) return -KEY_getc;
3755 if (strEQ(d,"gt")) return -KEY_gt;
3756 if (strEQ(d,"ge")) return -KEY_ge;
3759 if (strEQ(d,"grep")) return KEY_grep;
3760 if (strEQ(d,"goto")) return KEY_goto;
3761 if (strEQ(d,"glob")) return -KEY_glob;
3764 if (strEQ(d,"gmtime")) return -KEY_gmtime;
3769 if (strEQ(d,"hex")) return -KEY_hex;
3774 if (strEQ(d,"if")) return KEY_if;
3777 if (strEQ(d,"int")) return -KEY_int;
3780 if (strEQ(d,"index")) return -KEY_index;
3781 if (strEQ(d,"ioctl")) return -KEY_ioctl;
3786 if (strEQ(d,"join")) return -KEY_join;
3790 if (strEQ(d,"keys")) return KEY_keys;
3791 if (strEQ(d,"kill")) return -KEY_kill;
3796 if (strEQ(d,"LT")) { deprecate(d); return -KEY_lt;}
3797 if (strEQ(d,"LE")) { deprecate(d); return -KEY_le;}
3803 if (strEQ(d,"lt")) return -KEY_lt;
3804 if (strEQ(d,"le")) return -KEY_le;
3805 if (strEQ(d,"lc")) return -KEY_lc;
3808 if (strEQ(d,"log")) return -KEY_log;
3811 if (strEQ(d,"last")) return KEY_last;
3812 if (strEQ(d,"link")) return -KEY_link;
3815 if (strEQ(d,"local")) return KEY_local;
3816 if (strEQ(d,"lstat")) return -KEY_lstat;
3819 if (strEQ(d,"length")) return -KEY_length;
3820 if (strEQ(d,"listen")) return -KEY_listen;
3823 if (strEQ(d,"lcfirst")) return -KEY_lcfirst;
3826 if (strEQ(d,"localtime")) return -KEY_localtime;
3832 case 1: return KEY_m;
3834 if (strEQ(d,"my")) return KEY_my;
3837 if (strEQ(d,"map")) return KEY_map;
3840 if (strEQ(d,"mkdir")) return -KEY_mkdir;
3843 if (strEQ(d,"msgctl")) return -KEY_msgctl;
3844 if (strEQ(d,"msgget")) return -KEY_msgget;
3845 if (strEQ(d,"msgrcv")) return -KEY_msgrcv;
3846 if (strEQ(d,"msgsnd")) return -KEY_msgsnd;
3851 if (strEQ(d,"NE")) { deprecate(d); return -KEY_ne;}
3854 if (strEQ(d,"next")) return KEY_next;
3855 if (strEQ(d,"ne")) return -KEY_ne;
3856 if (strEQ(d,"not")) return -KEY_not;
3857 if (strEQ(d,"no")) return KEY_no;
3862 if (strEQ(d,"or")) return -KEY_or;
3865 if (strEQ(d,"ord")) return -KEY_ord;
3866 if (strEQ(d,"oct")) return -KEY_oct;
3869 if (strEQ(d,"open")) return -KEY_open;
3872 if (strEQ(d,"opendir")) return -KEY_opendir;
3879 if (strEQ(d,"pop")) return KEY_pop;
3880 if (strEQ(d,"pos")) return KEY_pos;
3883 if (strEQ(d,"push")) return KEY_push;
3884 if (strEQ(d,"pack")) return -KEY_pack;
3885 if (strEQ(d,"pipe")) return -KEY_pipe;
3888 if (strEQ(d,"print")) return KEY_print;
3891 if (strEQ(d,"printf")) return KEY_printf;
3894 if (strEQ(d,"package")) return KEY_package;
3897 if (strEQ(d,"prototype")) return KEY_prototype;
3902 if (strEQ(d,"q")) return KEY_q;
3903 if (strEQ(d,"qq")) return KEY_qq;
3904 if (strEQ(d,"qw")) return KEY_qw;
3905 if (strEQ(d,"qx")) return KEY_qx;
3907 else if (strEQ(d,"quotemeta")) return -KEY_quotemeta;
3912 if (strEQ(d,"ref")) return -KEY_ref;
3915 if (strEQ(d,"read")) return -KEY_read;
3916 if (strEQ(d,"rand")) return -KEY_rand;
3917 if (strEQ(d,"recv")) return -KEY_recv;
3918 if (strEQ(d,"redo")) return KEY_redo;
3921 if (strEQ(d,"rmdir")) return -KEY_rmdir;
3922 if (strEQ(d,"reset")) return -KEY_reset;
3925 if (strEQ(d,"return")) return KEY_return;
3926 if (strEQ(d,"rename")) return -KEY_rename;
3927 if (strEQ(d,"rindex")) return -KEY_rindex;
3930 if (strEQ(d,"require")) return -KEY_require;
3931 if (strEQ(d,"reverse")) return -KEY_reverse;
3932 if (strEQ(d,"readdir")) return -KEY_readdir;
3935 if (strEQ(d,"readlink")) return -KEY_readlink;
3936 if (strEQ(d,"readline")) return -KEY_readline;
3937 if (strEQ(d,"readpipe")) return -KEY_readpipe;
3940 if (strEQ(d,"rewinddir")) return -KEY_rewinddir;
3946 case 0: return KEY_s;
3948 if (strEQ(d,"scalar")) return KEY_scalar;
3953 if (strEQ(d,"seek")) return -KEY_seek;
3954 if (strEQ(d,"send")) return -KEY_send;
3957 if (strEQ(d,"semop")) return -KEY_semop;
3960 if (strEQ(d,"select")) return -KEY_select;
3961 if (strEQ(d,"semctl")) return -KEY_semctl;
3962 if (strEQ(d,"semget")) return -KEY_semget;
3965 if (strEQ(d,"setpgrp")) return -KEY_setpgrp;
3966 if (strEQ(d,"seekdir")) return -KEY_seekdir;
3969 if (strEQ(d,"setpwent")) return -KEY_setpwent;
3970 if (strEQ(d,"setgrent")) return -KEY_setgrent;
3973 if (strEQ(d,"setnetent")) return -KEY_setnetent;
3976 if (strEQ(d,"setsockopt")) return -KEY_setsockopt;
3977 if (strEQ(d,"sethostent")) return -KEY_sethostent;
3978 if (strEQ(d,"setservent")) return -KEY_setservent;
3981 if (strEQ(d,"setpriority")) return -KEY_setpriority;
3982 if (strEQ(d,"setprotoent")) return -KEY_setprotoent;
3989 if (strEQ(d,"shift")) return KEY_shift;
3992 if (strEQ(d,"shmctl")) return -KEY_shmctl;
3993 if (strEQ(d,"shmget")) return -KEY_shmget;
3996 if (strEQ(d,"shmread")) return -KEY_shmread;
3999 if (strEQ(d,"shmwrite")) return -KEY_shmwrite;
4000 if (strEQ(d,"shutdown")) return -KEY_shutdown;
4005 if (strEQ(d,"sin")) return -KEY_sin;
4008 if (strEQ(d,"sleep")) return -KEY_sleep;
4011 if (strEQ(d,"sort")) return KEY_sort;
4012 if (strEQ(d,"socket")) return -KEY_socket;
4013 if (strEQ(d,"socketpair")) return -KEY_socketpair;
4016 if (strEQ(d,"split")) return KEY_split;
4017 if (strEQ(d,"sprintf")) return -KEY_sprintf;
4018 if (strEQ(d,"splice")) return KEY_splice;
4021 if (strEQ(d,"sqrt")) return -KEY_sqrt;
4024 if (strEQ(d,"srand")) return -KEY_srand;
4027 if (strEQ(d,"stat")) return -KEY_stat;
4028 if (strEQ(d,"study")) return KEY_study;
4031 if (strEQ(d,"substr")) return -KEY_substr;
4032 if (strEQ(d,"sub")) return KEY_sub;
4037 if (strEQ(d,"system")) return -KEY_system;
4040 if (strEQ(d,"sysopen")) return -KEY_sysopen;
4041 if (strEQ(d,"sysread")) return -KEY_sysread;
4042 if (strEQ(d,"symlink")) return -KEY_symlink;
4043 if (strEQ(d,"syscall")) return -KEY_syscall;
4046 if (strEQ(d,"syswrite")) return -KEY_syswrite;
4055 if (strEQ(d,"tr")) return KEY_tr;
4058 if (strEQ(d,"tie")) return KEY_tie;
4061 if (strEQ(d,"tell")) return -KEY_tell;
4062 if (strEQ(d,"tied")) return KEY_tied;
4063 if (strEQ(d,"time")) return -KEY_time;
4066 if (strEQ(d,"times")) return -KEY_times;
4069 if (strEQ(d,"telldir")) return -KEY_telldir;
4072 if (strEQ(d,"truncate")) return -KEY_truncate;
4079 if (strEQ(d,"uc")) return -KEY_uc;
4082 if (strEQ(d,"use")) return KEY_use;
4085 if (strEQ(d,"undef")) return KEY_undef;
4086 if (strEQ(d,"until")) return KEY_until;
4087 if (strEQ(d,"untie")) return KEY_untie;
4088 if (strEQ(d,"utime")) return -KEY_utime;
4089 if (strEQ(d,"umask")) return -KEY_umask;
4092 if (strEQ(d,"unless")) return KEY_unless;
4093 if (strEQ(d,"unpack")) return -KEY_unpack;
4094 if (strEQ(d,"unlink")) return -KEY_unlink;
4097 if (strEQ(d,"unshift")) return KEY_unshift;
4098 if (strEQ(d,"ucfirst")) return -KEY_ucfirst;
4103 if (strEQ(d,"values")) return -KEY_values;
4104 if (strEQ(d,"vec")) return -KEY_vec;
4109 if (strEQ(d,"warn")) return -KEY_warn;
4110 if (strEQ(d,"wait")) return -KEY_wait;
4113 if (strEQ(d,"while")) return KEY_while;
4114 if (strEQ(d,"write")) return -KEY_write;
4117 if (strEQ(d,"waitpid")) return -KEY_waitpid;
4120 if (strEQ(d,"wantarray")) return -KEY_wantarray;
4125 if (len == 1) return -KEY_x;
4126 if (strEQ(d,"xor")) return -KEY_xor;
4129 if (len == 1) return KEY_y;
4138 checkcomma(s,name,what)
4145 if (dowarn && *s == ' ' && s[1] == '(') { /* XXX gotta be a better way */
4147 for (w = s+2; *w && level; w++) {
4154 for (; *w && isSPACE(*w); w++) ;
4155 if (!*w || !strchr(";|})]oa!=", *w)) /* an advisory hack only... */
4156 warn("%s (...) interpreted as function",name);
4158 while (s < bufend && isSPACE(*s))
4162 while (s < bufend && isSPACE(*s))
4164 if (isIDFIRST(*s)) {
4168 while (s < bufend && isSPACE(*s))
4173 kw = keyword(w, s - w) || perl_get_cv(w, FALSE) != 0;
4177 croak("No comma allowed after %s", what);
4183 scan_word(s, dest, allow_package, slp)
4189 register char *d = dest;
4193 else if (*s == '\'' && allow_package && isIDFIRST(s[1])) {
4198 else if (*s == ':' && s[1] == ':' && allow_package && isIDFIRST(s[2])) {
4211 scan_ident(s,send,dest,ck_uni)
4213 register char *send;
4221 if (lex_brackets == 0)
4234 else if (*s == '\'' && isIDFIRST(s[1])) {
4239 else if (*s == ':' && s[1] == ':') {
4250 if (lex_state != LEX_NORMAL)
4251 lex_state = LEX_INTERPENDMAYBE;
4254 if (*s == '$' && s[1] &&
4255 (isALPHA(s[1]) || strchr("$_{", s[1]) || strnEQ(s+1,"::",2)) )
4266 if (*d == '^' && *s && (isUPPER(*s) || strchr("[\\]^_?", *s))) {
4271 if (isSPACE(s[-1])) {
4272 while (s < send && (*s == ' ' || *s == '\t')) s++;
4275 if (isIDFIRST(*d)) {
4277 while (isALNUM(*s) || *s == ':')
4280 while (s < send && (*s == ' ' || *s == '\t')) s++;
4281 if ((*s == '[' || (*s == '{' && strNE(dest, "sub")))) {
4282 if (dowarn && keyword(dest, d - dest)) {
4283 char *brack = *s == '[' ? "[...]" : "{...}";
4284 warn("Ambiguous use of %c{%s%s} resolved to %c%s%s",
4285 funny, dest, brack, funny, dest, brack);
4287 lex_fakebrack = lex_brackets+1;
4289 lex_brackstack[lex_brackets++] = XOPERATOR;
4295 if (lex_state == LEX_INTERPNORMAL && !lex_brackets)
4296 lex_state = LEX_INTERPEND;
4300 (keyword(dest, d - dest) || perl_get_cv(dest, FALSE)))
4301 warn("Ambiguous use of %c{%s} resolved to %c%s",
4302 funny, dest, funny, dest);
4305 s = bracket; /* let the parser handle it */
4309 else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s))
4310 lex_state = LEX_INTERPEND;
4314 void pmflag(pmfl,ch)
4321 *pmfl |= PMf_GLOBAL;
4325 *pmfl |= PMf_MULTILINE;
4327 *pmfl |= PMf_SINGLELINE;
4329 *pmfl |= PMf_EXTENDED;
4339 s = scan_str(start);
4342 SvREFCNT_dec(lex_stuff);
4344 croak("Search pattern not terminated");
4347 pm = (PMOP*)newPMOP(OP_MATCH, 0);
4348 if (multi_open == '?')
4349 pm->op_pmflags |= PMf_ONCE;
4350 while (*s && strchr("iogmsx", *s))
4351 pmflag(&pm->op_pmflags,*s++);
4352 pm->op_pmpermflags = pm->op_pmflags;
4355 yylval.ival = OP_MATCH;
4367 yylval.ival = OP_NULL;
4369 s = scan_str(start);
4373 SvREFCNT_dec(lex_stuff);
4375 croak("Substitution pattern not terminated");
4378 if (s[-1] == multi_open)
4384 SvREFCNT_dec(lex_stuff);
4387 SvREFCNT_dec(lex_repl);
4389 croak("Substitution replacement not terminated");
4392 pm = (PMOP*)newPMOP(OP_SUBST, 0);
4393 while (*s && strchr("iogmsex", *s)) {
4399 pmflag(&pm->op_pmflags,*s++);
4404 pm->op_pmflags |= PMf_EVAL;
4405 repl = newSVpv("",0);
4407 sv_catpv(repl, es ? "eval " : "do ");
4408 sv_catpvn(repl, "{ ", 2);
4409 sv_catsv(repl, lex_repl);
4410 sv_catpvn(repl, " };", 2);
4411 SvCOMPILED_on(repl);
4412 SvREFCNT_dec(lex_repl);
4416 pm->op_pmpermflags = pm->op_pmflags;
4418 yylval.ival = OP_SUBST;
4426 if (!pm->op_pmshort && pm->op_pmregexp->regstart &&
4427 (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH)
4429 if (!(pm->op_pmregexp->reganch & ROPT_ANCH))
4430 pm->op_pmflags |= PMf_SCANFIRST;
4431 pm->op_pmshort = SvREFCNT_inc(pm->op_pmregexp->regstart);
4432 pm->op_pmslen = SvCUR(pm->op_pmshort);
4434 else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */
4435 if (pm->op_pmshort &&
4436 sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust))
4438 if (pm->op_pmflags & PMf_SCANFIRST) {
4439 SvREFCNT_dec(pm->op_pmshort);
4440 pm->op_pmshort = Nullsv;
4443 SvREFCNT_dec(pm->op_pmregexp->regmust);
4444 pm->op_pmregexp->regmust = Nullsv;
4448 if (!pm->op_pmshort || /* promote the better string */
4449 ((pm->op_pmflags & PMf_SCANFIRST) &&
4450 (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)) )){
4451 SvREFCNT_dec(pm->op_pmshort); /* ok if null */
4452 pm->op_pmshort = pm->op_pmregexp->regmust;
4453 pm->op_pmslen = SvCUR(pm->op_pmshort);
4454 pm->op_pmregexp->regmust = Nullsv;
4455 pm->op_pmflags |= PMf_SCANFIRST;
4471 yylval.ival = OP_NULL;
4473 s = scan_str(start);
4476 SvREFCNT_dec(lex_stuff);
4478 croak("Translation pattern not terminated");
4480 if (s[-1] == multi_open)
4486 SvREFCNT_dec(lex_stuff);
4489 SvREFCNT_dec(lex_repl);
4491 croak("Translation replacement not terminated");
4494 New(803,tbl,256,short);
4495 op = newPVOP(OP_TRANS, 0, (char*)tbl);
4497 complement = delete = squash = 0;
4498 while (*s == 'c' || *s == 'd' || *s == 's') {
4500 complement = OPpTRANS_COMPLEMENT;
4502 delete = OPpTRANS_DELETE;
4504 squash = OPpTRANS_SQUASH;
4507 op->op_private = delete|squash|complement;
4510 yylval.ival = OP_TRANS;
4519 I32 op_type = OP_SCALAR;
4530 for (peek = s; *peek == ' ' || *peek == '\t'; peek++) ;
4531 if (*peek && strchr("`'\"",*peek)) {
4534 s = cpytill(d,s,bufend,term,&len);
4545 deprecate("bare << to mean <<\"\"");
4548 } /* assuming tokenbuf won't clobber */
4553 if (rsfp || !(d=ninstr(s,bufend,d,d+1)))
4554 herewas = newSVpv(s,bufend-s);
4556 s--, herewas = newSVpv(s,d-s);
4557 s += SvCUR(herewas);
4559 tmpstr = NEWSV(87,80);
4560 sv_upgrade(tmpstr, SVt_PVIV);
4565 else if (term == '`') {
4566 op_type = OP_BACKTICK;
4567 SvIVX(tmpstr) = '\\';
4571 multi_start = curcop->cop_line;
4572 multi_open = multi_close = '<';
4576 while (s < bufend &&
4577 (*s != term || memNE(s,tokenbuf,len)) ) {
4582 curcop->cop_line = multi_start;
4583 missingterm(tokenbuf);
4585 sv_setpvn(tmpstr,d+1,s-d);
4587 sv_catpvn(herewas,s,bufend-s);
4588 sv_setsv(linestr,herewas);
4589 oldoldbufptr = oldbufptr = bufptr = s = linestart = SvPVX(linestr);
4590 bufend = SvPVX(linestr) + SvCUR(linestr);
4593 sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */
4594 while (s >= bufend) { /* multiple line string? */
4596 !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) {
4597 curcop->cop_line = multi_start;
4598 missingterm(tokenbuf);
4601 if (perldb && curstash != debstash) {
4602 SV *sv = NEWSV(88,0);
4604 sv_upgrade(sv, SVt_PVMG);
4605 sv_setsv(sv,linestr);
4606 av_store(GvAV(curcop->cop_filegv),
4607 (I32)curcop->cop_line,sv);
4609 bufend = SvPVX(linestr) + SvCUR(linestr);
4610 if (*s == term && memEQ(s,tokenbuf,len)) {
4613 sv_catsv(linestr,herewas);
4614 bufend = SvPVX(linestr) + SvCUR(linestr);
4618 sv_catsv(tmpstr,linestr);
4621 multi_end = curcop->cop_line;
4623 if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) {
4624 SvLEN_set(tmpstr, SvCUR(tmpstr) + 1);
4625 Renew(SvPVX(tmpstr), SvLEN(tmpstr), char);
4627 SvREFCNT_dec(herewas);
4629 yylval.ival = op_type;
4634 scan_inputsymbol(start)
4637 register char *s = start;
4642 s = cpytill(d, s+1, bufend, '>', &len);
4646 croak("Unterminated <> operator");
4648 if (*d == '$' && d[1]) d++;
4649 while (*d && (isALNUM(*d) || *d == '\'' || *d == ':'))
4651 if (d - tokenbuf != len) {
4652 yylval.ival = OP_GLOB;
4654 s = scan_str(start);
4656 croak("Glob not terminated");
4662 (void)strcpy(d,"ARGV");
4665 if (tmp = pad_findmy(d)) {
4666 OP *op = newOP(OP_PADSV, 0);
4668 lex_op = (OP*)newUNOP(OP_READLINE, 0, newUNOP(OP_RV2GV, 0, op));
4671 GV *gv = gv_fetchpv(d+1,TRUE, SVt_PV);
4672 lex_op = (OP*)newUNOP(OP_READLINE, 0,
4673 newUNOP(OP_RV2GV, 0,
4674 newUNOP(OP_RV2SV, 0,
4675 newGVOP(OP_GV, 0, gv))));
4677 yylval.ival = OP_NULL;
4680 GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO);
4681 lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv));
4682 yylval.ival = OP_NULL;
4694 register char *s = start;
4703 multi_start = curcop->cop_line;
4705 if (term && (tmps = strchr("([{< )]}> )]}>",term)))
4710 sv_upgrade(sv, SVt_PVIV);
4712 (void)SvPOK_only(sv); /* validate pointer */
4715 SvGROW(sv, SvCUR(sv) + (bufend - s) + 1);
4716 to = SvPVX(sv)+SvCUR(sv);
4717 if (multi_open == multi_close) {
4718 for (; s < bufend; s++,to++) {
4719 if (*s == '\n' && !rsfp)
4721 if (*s == '\\' && s+1 < bufend && term != '\\') {
4727 else if (*s == term)
4733 for (; s < bufend; s++,to++) {
4734 if (*s == '\n' && !rsfp)
4736 if (*s == '\\' && s+1 < bufend && term != '\\') {
4742 else if (*s == term && --brackets <= 0)
4744 else if (*s == multi_open)
4750 SvCUR_set(sv, to - SvPVX(sv));
4752 if (s < bufend) break; /* string ends on this line? */
4755 !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) {
4757 curcop->cop_line = multi_start;
4761 if (perldb && curstash != debstash) {
4762 SV *sv = NEWSV(88,0);
4764 sv_upgrade(sv, SVt_PVMG);
4765 sv_setsv(sv,linestr);
4766 av_store(GvAV(curcop->cop_filegv),
4767 (I32)curcop->cop_line, sv);
4769 bufend = SvPVX(linestr) + SvCUR(linestr);
4771 multi_end = curcop->cop_line;
4773 if (SvCUR(sv) + 5 < SvLEN(sv)) {
4774 SvLEN_set(sv, SvCUR(sv) + 1);
4775 Renew(SvPVX(sv), SvLEN(sv), char);
4788 register char *s = start;
4798 croak("panic: scan_num");
4803 bool overflowed = FALSE;
4809 else if (s[1] == '.')
4825 yyerror("Illegal octal digit");
4827 case '0': case '1': case '2': case '3': case '4':
4828 case '5': case '6': case '7':
4831 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
4832 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
4838 if (!overflowed && (n >> shift) != u) {
4839 warn("Integer overflow in %s number",
4840 (shift == 4) ? "hex" : "octal");
4852 case '1': case '2': case '3': case '4': case '5':
4853 case '6': case '7': case '8': case '9': case '.':
4857 while (isDIGIT(*s) || *s == '_') {
4859 if (dowarn && lastub && s - lastub != 3)
4860 warn("Misplaced _ in number");
4866 if (dowarn && lastub && s - lastub != 3)
4867 warn("Misplaced _ in number");
4868 if (*s == '.' && s[1] != '.') {
4871 while (isDIGIT(*s) || *s == '_') {
4878 if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) {
4881 *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */
4882 if (*s == '+' || *s == '-')
4889 SET_NUMERIC_STANDARD();
4890 value = atof(tokenbuf);
4891 tryi32 = I_32(value);
4892 if (!floatit && (double)tryi32 == value)
4893 sv_setiv(sv,tryi32);
4899 yylval.opval = newSVOP(OP_CONST, 0, sv);
4910 SV *stuff = newSVpv("",0);
4911 bool needargs = FALSE;
4914 if (*s == '.' || *s == '}') {
4916 for (t = s+1; *t == ' ' || *t == '\t'; t++) ;
4920 if (in_eval && !rsfp) {
4921 eol = strchr(s,'\n');
4926 eol = bufend = SvPVX(linestr) + SvCUR(linestr);
4928 for (t = s; t < eol; t++) {
4929 if (*t == '~' && t[1] == '~' && SvCUR(stuff)) {
4931 goto enough; /* ~~ must be first line in formline */
4933 if (*t == '@' || *t == '^')
4936 sv_catpvn(stuff, s, eol-s);
4940 s = filter_gets(linestr, rsfp, 0);
4941 oldoldbufptr = oldbufptr = bufptr = linestart = SvPVX(linestr);
4942 bufend = bufptr + SvCUR(linestr);
4945 yyerror("Format not terminated");
4955 lex_state = LEX_NORMAL;
4956 nextval[nexttoke].ival = 0;
4960 lex_state = LEX_FORMLINE;
4961 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff);
4963 nextval[nexttoke].ival = OP_FORMLINE;
4967 SvREFCNT_dec(stuff);
4979 cshlen = strlen(cshname);
4986 int oldsavestack_ix = savestack_ix;
4987 CV* outsidecv = compcv;
4991 assert(SvTYPE(compcv) == SVt_PVCV);
4998 SAVESPTR(comppad_name);
5000 SAVEI32(comppad_name_fill);
5001 SAVEI32(min_intro_pending);
5002 SAVEI32(max_intro_pending);
5003 SAVEI32(pad_reset_pending);
5005 compcv = (CV*)NEWSV(1104,0);
5006 sv_upgrade((SV *)compcv, SVt_PVCV);
5009 comppad_name = newAV();
5010 comppad_name_fill = 0;
5011 min_intro_pending = 0;
5012 av_push(comppad, Nullsv);
5013 curpad = AvARRAY(comppad);
5015 subline = curcop->cop_line;
5017 comppadlist = newAV();
5018 AvREAL_off(comppadlist);
5019 av_store(comppadlist, 0, (SV*)comppad_name);
5020 av_store(comppadlist, 1, (SV*)comppad);
5022 CvPADLIST(compcv) = comppadlist;
5023 CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc((SV*)outsidecv);
5025 return oldsavestack_ix;
5044 char *tname = tmpbuf;
5046 if (bufptr > oldoldbufptr && bufptr - oldoldbufptr < 200 &&
5047 oldoldbufptr != oldbufptr && oldbufptr != bufptr) {
5048 while (isSPACE(*oldoldbufptr))
5050 sprintf(tname,"near \"%.*s\"",bufptr - oldoldbufptr, oldoldbufptr);
5052 else if (bufptr > oldbufptr && bufptr - oldbufptr < 200 &&
5053 oldbufptr != bufptr) {
5054 while (isSPACE(*oldbufptr))
5056 sprintf(tname,"near \"%.*s\"",bufptr - oldbufptr, oldbufptr);
5058 else if (yychar > 255)
5059 tname = "next token ???";
5060 else if (!yychar || (yychar == ';' && !rsfp))
5061 (void)strcpy(tname,"at EOF");
5062 else if ((yychar & 127) == 127) {
5063 if (lex_state == LEX_NORMAL ||
5064 (lex_state == LEX_KNOWNEXT && lex_defer == LEX_NORMAL))
5065 (void)strcpy(tname,"at end of line");
5067 (void)strcpy(tname,"within pattern");
5069 (void)strcpy(tname,"within string");
5071 else if (yychar < 32)
5072 (void)sprintf(tname,"next char ^%c",toCTRL(yychar));
5074 (void)sprintf(tname,"next char %c",yychar);
5075 (void)sprintf(buf, "%s at %s line %d, %s\n",
5076 s,SvPVX(GvSV(curcop->cop_filegv)),curcop->cop_line,tname);
5077 if (curcop->cop_line == multi_end && multi_start < multi_end) {
5078 sprintf(buf+strlen(buf),
5079 " (Might be a runaway multi-line %c%c string starting on line %ld)\n",
5080 multi_open,multi_close,(long)multi_start);
5086 sv_catpv(GvSV(errgv),buf);
5088 PerlIO_printf(PerlIO_stderr(), "%s",buf);
5089 if (++error_count >= 10)
5090 croak("%s has too many errors.\n",
5091 SvPVX(GvSV(curcop->cop_filegv)));