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_start _((void));
45 static int uni _((I32 f, char *s));
47 static char * filter_gets _((SV *sv, PerlIO *fp));
48 static void restore_rsfp _((void *f));
50 /* The following are arranged oddly so that the guard on the switch statement
51 * can get by with a single comparison (if the compiler is smart enough).
55 #define LEX_INTERPNORMAL 8
56 #define LEX_INTERPCASEMOD 7
57 #define LEX_INTERPSTART 6
58 #define LEX_INTERPEND 5
59 #define LEX_INTERPENDMAYBE 4
60 #define LEX_INTERPCONCAT 3
61 #define LEX_INTERPCONST 2
62 #define LEX_FORMLINE 1
63 #define LEX_KNOWNEXT 0
72 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
74 # include <unistd.h> /* Needed for execv() */
87 #define CLINE (copline = (curcop->cop_line < copline ? curcop->cop_line : copline))
89 #define TOKEN(retval) return (bufptr = s,(int)retval)
90 #define OPERATOR(retval) return (expect = XTERM,bufptr = s,(int)retval)
91 #define AOPERATOR(retval) return ao((expect = XTERM,bufptr = s,(int)retval))
92 #define PREBLOCK(retval) return (expect = XBLOCK,bufptr = s,(int)retval)
93 #define PRETERMBLOCK(retval) return (expect = XTERMBLOCK,bufptr = s,(int)retval)
94 #define PREREF(retval) return (expect = XREF,bufptr = s,(int)retval)
95 #define TERM(retval) return (CLINE, expect = XOPERATOR,bufptr = s,(int)retval)
96 #define LOOPX(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LOOPEX)
97 #define FTST(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)UNIOP)
98 #define FUN0(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC0)
99 #define FUN1(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC1)
100 #define BOop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITOROP))
101 #define BAop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITANDOP))
102 #define SHop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)SHIFTOP))
103 #define PWop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)POWOP))
104 #define PMop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MATCHOP)
105 #define Aop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)ADDOP))
106 #define Mop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)MULOP))
107 #define Eop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)EQOP)
108 #define Rop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)RELOP)
110 /* This bit of chicanery makes a unary function followed by
111 * a parenthesis into a function with one argument, highest precedence.
113 #define UNI(f) return(yylval.ival = f, \
116 last_uni = oldbufptr, \
118 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
120 #define UNIBRACK(f) return(yylval.ival = f, \
122 last_uni = oldbufptr, \
123 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
125 /* grandfather return to old style */
126 #define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP)
132 if (*bufptr == '=') {
134 if (toketype == ANDAND)
135 yylval.ival = OP_ANDASSIGN;
136 else if (toketype == OROR)
137 yylval.ival = OP_ORASSIGN;
149 char *oldbp = bufptr;
150 bool is_first = (oldbufptr == SvPVX(linestr));
152 sprintf(tmpbuf, "%s found where operator expected", what);
155 warn("\t(Missing semicolon on previous line?)\n");
156 else if (oldoldbufptr && isIDFIRST(*oldoldbufptr)) {
158 for (t = oldoldbufptr; *t && (isALNUM(*t) || *t == ':'); t++) ;
159 if (t < bufptr && isSPACE(*t))
160 warn("\t(Do you need to predeclare %.*s?)\n",
161 t - oldoldbufptr, oldoldbufptr);
165 warn("\t(Missing operator before %.*s?)\n", s - oldbp, oldbp);
176 char *nl = strrchr(s,'\n');
180 else if (multi_close < 32 || multi_close == 127) {
182 tmpbuf[1] = multi_close ^ 64;
188 *tmpbuf = multi_close;
192 q = strchr(s,'"') ? '\'' : '"';
193 croak("Can't find string terminator %c%s%c anywhere before EOF",q,s,q);
201 warn("Use of %s is deprecated", s);
207 deprecate("comma-less variable list");
218 SAVEINT(lex_brackets);
219 SAVEINT(lex_fakebrack);
220 SAVEINT(lex_casemods);
225 SAVEINT(curcop->cop_line);
229 SAVEPPTR(oldoldbufptr);
231 SAVEPPTR(lex_brackstack);
232 SAVEPPTR(lex_casestack);
233 SAVEDESTRUCTOR(restore_rsfp, rsfp);
235 lex_state = LEX_NORMAL;
240 New(899, lex_brackstack, 120, char);
241 New(899, lex_casestack, 12, char);
242 SAVEFREEPV(lex_brackstack);
243 SAVEFREEPV(lex_casestack);
245 *lex_casestack = '\0';
249 SvREFCNT_dec(lex_stuff);
252 SvREFCNT_dec(lex_repl);
257 if (SvREADONLY(linestr))
258 linestr = sv_2mortal(newSVsv(linestr));
259 s = SvPV(linestr, len);
260 if (len && s[len-1] != ';') {
261 if (!(SvFLAGS(linestr) & SVs_TEMP))
262 linestr = sv_2mortal(newSVsv(linestr));
263 sv_catpvn(linestr, "\n;", 2);
266 oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr);
267 bufend = bufptr + SvCUR(linestr);
269 rs = newSVpv("\n", 1);
282 PerlIO *fp = (PerlIO*)f;
284 if (rsfp == PerlIO_stdin())
285 PerlIO_clearerr(rsfp);
286 else if (rsfp && (rsfp != fp))
303 while (*s == ' ' || *s == '\t') s++;
304 if (strnEQ(s, "line ", 5)) {
313 while (*s == ' ' || *s == '\t')
315 if (*s == '"' && (t = strchr(s+1, '"')))
319 return; /* false alarm */
320 for (t = s; !isSPACE(*t); t++) ;
325 curcop->cop_filegv = gv_fetchfile(s);
327 curcop->cop_filegv = gv_fetchfile(origfilename);
329 curcop->cop_line = atoi(n)-1;
336 if (lex_formbrack && lex_brackets <= lex_formbrack) {
337 while (s < bufend && (*s == ' ' || *s == '\t'))
342 while (s < bufend && isSPACE(*s))
344 if (s < bufend && *s == '#') {
345 while (s < bufend && *s != '\n')
350 if (s < bufend || !rsfp || lex_state != LEX_NORMAL)
352 if ((s = filter_gets(linestr, rsfp)) == Nullch) {
353 if (minus_n || minus_p) {
354 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
355 sv_catpv(linestr,";}");
356 minus_n = minus_p = 0;
359 sv_setpv(linestr,";");
360 oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr);
361 bufend = SvPVX(linestr) + SvCUR(linestr);
362 if (preprocess && !in_eval)
363 (void)my_pclose(rsfp);
364 else if ((PerlIO*)rsfp == PerlIO_stdin())
365 PerlIO_clearerr(rsfp);
367 (void)PerlIO_close(rsfp);
371 oldoldbufptr = oldbufptr = bufptr = s;
372 bufend = bufptr + SvCUR(linestr);
374 if (perldb && curstash != debstash) {
375 SV *sv = NEWSV(85,0);
377 sv_upgrade(sv, SVt_PVMG);
378 sv_setsv(sv,linestr);
379 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
390 if (oldoldbufptr != last_uni)
392 while (isSPACE(*last_uni))
394 for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ;
395 if ((t = strchr(s, '(')) && t < bufptr)
399 warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni);
406 #define UNI(f) return uni(f,s)
416 last_uni = oldbufptr;
427 #endif /* CRIPPLED_CC */
429 #define LOP(f,x) return lop(f,x,s)
441 last_lop = oldbufptr;
458 nexttype[nexttoke] = type;
460 if (lex_state != LEX_KNOWNEXT) {
461 lex_defer = lex_state;
463 lex_state = LEX_KNOWNEXT;
468 force_word(start,token,check_keyword,allow_pack,allow_tick)
469 register char *start;
478 start = skipspace(start);
481 (allow_pack && *s == ':') ||
482 (allow_tick && *s == '\'') )
484 s = scan_word(s, tokenbuf, allow_pack, &len);
485 if (check_keyword && keyword(tokenbuf, len))
487 if (token == METHOD) {
497 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(tokenbuf,0));
498 nextval[nexttoke].opval->op_private |= OPpCONST_BARE;
510 OP* op = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0));
511 nextval[nexttoke].opval = op;
514 op->op_private = OPpCONST_ENTERED;
516 kind == '$' ? SVt_PV :
517 kind == '@' ? SVt_PVAV :
518 kind == '%' ? SVt_PVHV :
529 OP *version = Nullop;
533 /* default VERSION number -- GBARR */
538 for( d=s, c = 1; isDIGIT(*d) || (*d == '.' && c--); d++);
539 if((*d == ';' || isSPACE(*d)) && *(skipspace(d)) != ',') {
541 /* real VERSION number -- GBARR */
542 version = yylval.opval;
546 /* NOTE: The parser sees the package name and the VERSION swapped */
547 nextval[nexttoke].opval = version;
565 s = SvPV_force(sv, len);
569 while (s < send && *s != '\\')
576 if (s + 1 < send && (s[1] == '\\'))
577 s++; /* all that, just for this */
582 SvCUR_set(sv, d - SvPVX(sv));
590 register I32 op_type = yylval.ival;
592 if (op_type == OP_NULL) {
593 yylval.opval = lex_op;
597 if (op_type == OP_CONST || op_type == OP_READLINE) {
598 yylval.opval = (OP*)newSVOP(op_type, 0, q(lex_stuff));
605 SAVEINT(lex_brackets);
606 SAVEINT(lex_fakebrack);
607 SAVEINT(lex_casemods);
612 SAVEINT(curcop->cop_line);
615 SAVEPPTR(oldoldbufptr);
617 SAVEPPTR(lex_brackstack);
618 SAVEPPTR(lex_casestack);
623 bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
624 bufend += SvCUR(linestr);
630 New(899, lex_brackstack, 120, char);
631 New(899, lex_casestack, 12, char);
632 SAVEFREEPV(lex_brackstack);
633 SAVEFREEPV(lex_casestack);
635 *lex_casestack = '\0';
637 lex_state = LEX_INTERPCONCAT;
638 curcop->cop_line = multi_start;
640 lex_inwhat = op_type;
641 if (op_type == OP_MATCH || op_type == OP_SUBST)
649 yylval.opval = lex_op;
662 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0));
666 if (lex_casemods) { /* oops, we've got some unbalanced parens */
667 lex_state = LEX_INTERPCASEMOD;
671 /* Is there a right-hand side to take care of? */
672 if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) {
675 bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
676 bufend += SvCUR(linestr);
682 *lex_casestack = '\0';
684 if (SvCOMPILED(lex_repl)) {
685 lex_state = LEX_INTERPNORMAL;
689 lex_state = LEX_INTERPCONCAT;
695 bufend = SvPVX(linestr);
696 bufend += SvCUR(linestr);
706 register char *send = bufend;
707 SV *sv = NEWSV(93, send - start);
708 register char *s = start;
709 register char *d = SvPVX(sv);
710 bool dorange = FALSE;
714 ? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]} \t\n\r\f\v#"
715 : (lex_inwhat & OP_TRANS)
719 while (s < send || dorange) {
720 if (lex_inwhat == OP_TRANS) {
725 SvGROW(sv, SvLEN(sv) + 256);
729 for (i = (U8)*d; i <= max; i++)
734 else if (*s == '-' && s+1 < send && s != start) {
739 else if (*s == '(' && lex_inpat && s[1] == '?' && s[2] == '#') {
740 while (s < send && *s != ')')
743 else if (*s == '#' && lex_inpat &&
744 ((PMOP*)lex_inpat)->op_pmflags & PMf_EXTENDED) {
745 while (s+1 < send && *s != '\n')
748 else if (*s == '@' && s[1] && (isALNUM(s[1]) || strchr(":'{$", s[1])))
750 else if (*s == '$') {
751 if (!lex_inpat) /* not a regexp, so $ must be var */
753 if (s + 1 < send && !strchr(")| \n\t", s[1]))
754 break; /* in regexp, $ might be tail anchor */
756 if (*s == '\\' && s+1 < send) {
758 if (*s && strchr(leave, *s)) {
763 if (lex_inwhat == OP_SUBST && !lex_inpat &&
764 isDIGIT(*s) && *s != '0' && !isDIGIT(s[1]))
767 warn("\\%c better written as $%c", *s, *s);
771 if (lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) {
777 if (lex_inwhat == OP_TRANS) {
785 case '0': case '1': case '2': case '3':
786 case '4': case '5': case '6': case '7':
787 *d++ = scan_oct(s, 3, &len);
791 *d++ = scan_hex(++s, 2, &len);
829 SvCUR_set(sv, d - SvPVX(sv));
832 if (SvCUR(sv) + 5 < SvLEN(sv)) {
833 SvLEN_set(sv, SvCUR(sv) + 1);
834 Renew(SvPVX(sv), SvLEN(sv), char);
837 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
843 /* This is the one truly awful dwimmer necessary to conflate C and sed. */
850 if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{'))
852 if (*s != '{' && *s != '[')
857 /* In a pattern, so maybe we have {n,m}. */
874 /* On the other hand, maybe we have a character class */
877 if (*s == ']' || *s == '^')
880 int weight = 2; /* let's weigh the evidence */
882 unsigned char un_char = 0, last_un_char;
883 char *send = strchr(s,']');
886 if (!send) /* has to be an expression */
892 else if (isDIGIT(*s)) {
894 if (isDIGIT(s[1]) && s[2] == ']')
900 for (; s < send; s++) {
901 last_un_char = un_char;
902 un_char = (unsigned char)*s;
907 weight -= seen[un_char] * 10;
909 scan_ident(s,send,tmpbuf,FALSE);
910 if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV))
915 else if (*s == '$' && s[1] &&
916 strchr("[#!%*<>()-=",s[1])) {
917 if (/*{*/ strchr("])} =",s[2]))
926 if (strchr("wds]",s[1]))
928 else if (seen['\''] || seen['"'])
930 else if (strchr("rnftbxcav",s[1]))
932 else if (isDIGIT(s[1])) {
934 while (s[1] && isDIGIT(s[1]))
944 if (strchr("aA01! ",last_un_char))
946 if (strchr("zZ79~",s[1]))
950 if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) &&
951 isALPHA(*s) && s[1] && isALPHA(s[1])) {
956 if (keyword(tmpbuf, d - tmpbuf))
959 if (un_char == last_un_char + 1)
961 weight -= seen[un_char];
966 if (weight >= 0) /* probably a character class */
974 intuit_method(start,gv)
978 char *s = start + (*start == '$');
989 s = scan_word(s, tmpbuf, TRUE, &len);
991 if (gv || last_lop_op == OP_PRINT || isUPPER(*tokenbuf))
996 return *s == '(' ? FUNCMETH : METHOD;
998 if (!keyword(tmpbuf, len)) {
999 indirgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVCV);
1000 if (indirgv && GvCV(indirgv))
1002 /* filehandle or package name makes it a method */
1003 if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) {
1005 nextval[nexttoke].opval =
1006 (OP*)newSVOP(OP_CONST, 0,
1008 nextval[nexttoke].opval->op_private =
1013 return *s == '(' ? FUNCMETH : METHOD;
1023 char *pdb = getenv("PERL5DB");
1027 return "BEGIN { require 'perl5db.pl' }";
1033 /* Encoded script support. filter_add() effectively inserts a
1034 * 'pre-processing' function into the current source input stream.
1035 * Note that the filter function only applies to the current source file
1036 * (e.g., it will not affect files 'require'd or 'use'd by this one).
1038 * The datasv parameter (which may be NULL) can be used to pass
1039 * private data to this instance of the filter. The filter function
1040 * can recover the SV using the FILTER_DATA macro and use it to
1041 * store private buffers and state information.
1043 * The supplied datasv parameter is upgraded to a PVIO type
1044 * and the IoDIRP field is used to store the function pointer.
1045 * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for
1046 * private use must be set using malloc'd pointers.
1048 static int filter_debug = 0;
1051 filter_add(funcp, datasv)
1055 if (!funcp){ /* temporary handy debugging hack to be deleted */
1056 filter_debug = atoi((char*)datasv);
1060 rsfp_filters = newAV();
1063 if (!SvUPGRADE(datasv, SVt_PVIO))
1064 die("Can't upgrade filter_add data to SVt_PVIO");
1065 IoDIRP(datasv) = (DIR*)funcp; /* stash funcp into spare field */
1067 warn("filter_add func %lx (%s)", funcp, SvPV(datasv,na));
1068 av_unshift(rsfp_filters, 1);
1069 av_store(rsfp_filters, 0, datasv) ;
1074 /* Delete most recently added instance of this filter function. */
1080 warn("filter_del func %lx", funcp);
1081 if (!rsfp_filters || AvFILL(rsfp_filters)<0)
1083 /* if filter is on top of stack (usual case) just pop it off */
1084 if (IoDIRP(FILTER_DATA(0)) == (void*)funcp){
1085 /* sv_free(av_pop(rsfp_filters)); */
1086 sv_free(av_shift(rsfp_filters));
1090 /* we need to search for the correct entry and clear it */
1091 die("filter_del can only delete in reverse order (currently)");
1095 /* Invoke the n'th filter function for the current rsfp. */
1097 filter_read(idx, buf_sv, maxlen)
1100 int maxlen; /* 0 = read one text line */
1107 if (idx > AvFILL(rsfp_filters)){ /* Any more filters? */
1108 /* Provide a default input filter to make life easy. */
1109 /* Note that we append to the line. This is handy. */
1111 warn("filter_read %d: from rsfp\n", idx);
1115 int old_len = SvCUR(buf_sv) ;
1117 /* ensure buf_sv is large enough */
1118 SvGROW(buf_sv, old_len + maxlen) ;
1119 if ((len = PerlIO_read(rsfp, SvPVX(buf_sv) + old_len, maxlen)) <= 0){
1120 if (PerlIO_error(rsfp))
1121 return -1; /* error */
1123 return 0 ; /* end of file */
1125 SvCUR_set(buf_sv, old_len + len) ;
1128 if (sv_gets(buf_sv, rsfp, SvCUR(buf_sv)) == NULL) {
1129 if (PerlIO_error(rsfp))
1130 return -1; /* error */
1132 return 0 ; /* end of file */
1135 return SvCUR(buf_sv);
1137 /* Skip this filter slot if filter has been deleted */
1138 if ( (datasv = FILTER_DATA(idx)) == &sv_undef){
1140 warn("filter_read %d: skipped (filter deleted)\n", idx);
1141 return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */
1143 /* Get function pointer hidden within datasv */
1144 funcp = (filter_t)IoDIRP(datasv);
1146 warn("filter_read %d: via function %lx (%s)\n",
1147 idx, funcp, SvPV(datasv,na));
1148 /* Call function. The function is expected to */
1149 /* call "FILTER_READ(idx+1, buf_sv)" first. */
1150 /* Return: <0:error, =0:eof, >0:not eof */
1151 return (*funcp)(idx, buf_sv, maxlen);
1157 register PerlIO *fp;
1161 SvCUR_set(sv, 0); /* start with empty line */
1162 if (FILTER_READ(0, sv, 0) > 0)
1163 return ( SvPVX(sv) ) ;
1168 return (sv_gets(sv, fp, 0)) ;
1174 static char* exp_name[] =
1175 { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "TERMBLOCK" };
1178 extern int yychar; /* last token */
1188 switch (lex_state) {
1190 case LEX_NORMAL: /* Some compilers will produce faster */
1191 case LEX_INTERPNORMAL: /* code if we comment these out. */
1197 yylval = nextval[nexttoke];
1199 lex_state = lex_defer;
1200 expect = lex_expect;
1201 lex_defer = LEX_NORMAL;
1203 return(nexttype[nexttoke]);
1205 case LEX_INTERPCASEMOD:
1207 if (bufptr != bufend && *bufptr != '\\')
1208 croak("panic: INTERPCASEMOD");
1210 if (bufptr == bufend || bufptr[1] == 'E') {
1213 oldmod = lex_casestack[--lex_casemods];
1214 lex_casestack[lex_casemods] = '\0';
1215 if (bufptr != bufend && strchr("LUQ", oldmod)) {
1217 lex_state = LEX_INTERPCONCAT;
1221 if (bufptr != bufend)
1223 lex_state = LEX_INTERPCONCAT;
1228 if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3))
1229 tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */
1230 if (strchr("LU", *s) &&
1231 (strchr(lex_casestack, 'L') || strchr(lex_casestack, 'U')))
1233 lex_casestack[--lex_casemods] = '\0';
1236 if (lex_casemods > 10) {
1237 char* newlb = Renew(lex_casestack, lex_casemods + 2, char);
1238 if (newlb != lex_casestack) {
1240 lex_casestack = newlb;
1243 lex_casestack[lex_casemods++] = *s;
1244 lex_casestack[lex_casemods] = '\0';
1245 lex_state = LEX_INTERPCONCAT;
1246 nextval[nexttoke].ival = 0;
1249 nextval[nexttoke].ival = OP_LCFIRST;
1251 nextval[nexttoke].ival = OP_UCFIRST;
1253 nextval[nexttoke].ival = OP_LC;
1255 nextval[nexttoke].ival = OP_UC;
1257 nextval[nexttoke].ival = OP_QUOTEMETA;
1259 croak("panic: yylex");
1271 case LEX_INTERPSTART:
1272 if (bufptr == bufend)
1273 return sublex_done();
1275 lex_dojoin = (*bufptr == '@');
1276 lex_state = LEX_INTERPNORMAL;
1278 nextval[nexttoke].ival = 0;
1280 force_ident("\"", '$');
1281 nextval[nexttoke].ival = 0;
1283 nextval[nexttoke].ival = 0;
1285 nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */
1296 case LEX_INTERPENDMAYBE:
1297 if (intuit_more(bufptr)) {
1298 lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */
1306 lex_state = LEX_INTERPCONCAT;
1310 case LEX_INTERPCONCAT:
1313 croak("panic: INTERPCONCAT");
1315 if (bufptr == bufend)
1316 return sublex_done();
1318 if (SvIVX(linestr) == '\'') {
1319 SV *sv = newSVsv(linestr);
1322 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
1326 s = scan_const(bufptr);
1328 lex_state = LEX_INTERPCASEMOD;
1330 lex_state = LEX_INTERPSTART;
1334 nextval[nexttoke] = yylval;
1347 lex_state = LEX_NORMAL;
1348 s = scan_formline(bufptr);
1355 oldoldbufptr = oldbufptr;
1358 PerlIO_printf(PerlIO_stderr(), "### Tokener expecting %s at %s\n", exp_name[expect], s);
1364 warn("Unrecognized character \\%03o ignored", *s++ & 255);
1368 goto fake_eof; /* emulate EOF on ^D or ^Z */
1372 yyerror("Missing right bracket");
1376 goto retry; /* ignore stray nulls */
1379 if (!in_eval && !preambled) {
1381 sv_setpv(linestr,incl_perldb());
1383 sv_catpv(linestr,";");
1385 while(AvFILL(preambleav) >= 0) {
1386 SV *tmpsv = av_shift(preambleav);
1387 sv_catsv(linestr, tmpsv);
1388 sv_catpv(linestr, ";");
1391 sv_free((SV*)preambleav);
1394 if (minus_n || minus_p) {
1395 sv_catpv(linestr, "LINE: while (<>) {");
1397 sv_catpv(linestr,"chomp;");
1401 if ( splitstr[0] == '/' ||
1402 splitstr[0] == '\'' ||
1403 splitstr[0] == '"' )
1404 sprintf( tmpbuf1, "@F=split(%s);", splitstr );
1406 sprintf( tmpbuf1, "@F=split('%s');", splitstr );
1407 sv_catpv(linestr,tmpbuf1);
1410 sv_catpv(linestr,"@F=split(' ');");
1413 sv_catpv(linestr, "\n");
1414 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1415 bufend = SvPVX(linestr) + SvCUR(linestr);
1416 if (perldb && curstash != debstash) {
1417 SV *sv = NEWSV(85,0);
1419 sv_upgrade(sv, SVt_PVMG);
1420 sv_setsv(sv,linestr);
1421 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1426 if ((s = filter_gets(linestr, rsfp)) == Nullch) {
1429 if (preprocess && !in_eval)
1430 (void)my_pclose(rsfp);
1431 else if ((PerlIO *)rsfp == PerlIO_stdin())
1432 PerlIO_clearerr(rsfp);
1434 (void)PerlIO_close(rsfp);
1437 if (!in_eval && (minus_n || minus_p)) {
1438 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
1439 sv_catpv(linestr,";}");
1440 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1441 bufend = SvPVX(linestr) + SvCUR(linestr);
1442 minus_n = minus_p = 0;
1445 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1446 sv_setpv(linestr,"");
1447 TOKEN(';'); /* not infinite loop because rsfp is NULL now */
1450 if (*s == '#' && s[1] == '!' && instr(s,"perl"))
1453 /* Incest with pod. */
1454 if (*s == '=' && strnEQ(s, "=cut", 4)) {
1455 sv_setpv(linestr, "");
1456 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1457 bufend = SvPVX(linestr) + SvCUR(linestr);
1462 } while (doextract);
1463 oldoldbufptr = oldbufptr = bufptr = s;
1464 if (perldb && curstash != debstash) {
1465 SV *sv = NEWSV(85,0);
1467 sv_upgrade(sv, SVt_PVMG);
1468 sv_setsv(sv,linestr);
1469 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1471 bufend = SvPVX(linestr) + SvCUR(linestr);
1472 if (curcop->cop_line == 1) {
1473 while (s < bufend && isSPACE(*s))
1475 if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */
1477 if (!in_eval && *s == '#' && s[1] == '!') {
1478 d = instr(s,"perl -");
1480 d = instr(s,"perl");
1483 !instr(s,"indir") &&
1484 instr(origargv[0],"perl"))
1493 while (s < bufend && !isSPACE(*s))
1496 while (s < bufend && isSPACE(*s))
1499 Newz(899,newargv,origargc+3,char*);
1501 while (s < bufend && !isSPACE(*s))
1504 Copy(origargv+1, newargv+2, origargc+1, char*);
1510 croak("Can't exec %s", cmd);
1513 int oldpdb = perldb;
1517 while (*d && !isSPACE(*d)) d++;
1518 while (*d == ' ' || *d == '\t') d++;
1521 while (d = moreswitches(d)) ;
1522 if (perldb && !oldpdb ||
1523 ( minus_n || minus_p ) && !(oldn || oldp) )
1524 /* if we have already added "LINE: while (<>) {",
1525 we must not do it again */
1527 sv_setpv(linestr, "");
1528 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1529 bufend = SvPVX(linestr) + SvCUR(linestr);
1532 (void)gv_fetchfile(origfilename);
1539 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1541 lex_state = LEX_FORMLINE;
1545 case ' ': case '\t': case '\f': case '\r': case 013:
1550 if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) {
1552 while (s < d && *s != '\n')
1557 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1559 lex_state = LEX_FORMLINE;
1569 if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) {
1574 while (s < bufend && (*s == ' ' || *s == '\t'))
1577 if (strnEQ(s,"=>",2)) {
1579 warn("Ambiguous use of -%c => resolved to \"-%c\" =>",
1581 s = force_word(bufptr,WORD,FALSE,FALSE,FALSE);
1582 OPERATOR('-'); /* unary minus */
1584 last_uni = oldbufptr;
1585 last_lop_op = OP_FTEREAD; /* good enough */
1587 case 'r': FTST(OP_FTEREAD);
1588 case 'w': FTST(OP_FTEWRITE);
1589 case 'x': FTST(OP_FTEEXEC);
1590 case 'o': FTST(OP_FTEOWNED);
1591 case 'R': FTST(OP_FTRREAD);
1592 case 'W': FTST(OP_FTRWRITE);
1593 case 'X': FTST(OP_FTREXEC);
1594 case 'O': FTST(OP_FTROWNED);
1595 case 'e': FTST(OP_FTIS);
1596 case 'z': FTST(OP_FTZERO);
1597 case 's': FTST(OP_FTSIZE);
1598 case 'f': FTST(OP_FTFILE);
1599 case 'd': FTST(OP_FTDIR);
1600 case 'l': FTST(OP_FTLINK);
1601 case 'p': FTST(OP_FTPIPE);
1602 case 'S': FTST(OP_FTSOCK);
1603 case 'u': FTST(OP_FTSUID);
1604 case 'g': FTST(OP_FTSGID);
1605 case 'k': FTST(OP_FTSVTX);
1606 case 'b': FTST(OP_FTBLK);
1607 case 'c': FTST(OP_FTCHR);
1608 case 't': FTST(OP_FTTTY);
1609 case 'T': FTST(OP_FTTEXT);
1610 case 'B': FTST(OP_FTBINARY);
1611 case 'M': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTMTIME);
1612 case 'A': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTATIME);
1613 case 'C': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTCTIME);
1615 croak("Unrecognized file test: -%c", tmp);
1622 if (expect == XOPERATOR)
1627 else if (*s == '>') {
1630 if (isIDFIRST(*s)) {
1631 s = force_word(s,METHOD,FALSE,TRUE,FALSE);
1639 if (expect == XOPERATOR)
1642 if (isSPACE(*s) || !isSPACE(*bufptr))
1644 OPERATOR('-'); /* unary minus */
1651 if (expect == XOPERATOR)
1656 if (expect == XOPERATOR)
1659 if (isSPACE(*s) || !isSPACE(*bufptr))
1665 if (expect != XOPERATOR) {
1666 s = scan_ident(s, bufend, tokenbuf, TRUE);
1668 force_ident(tokenbuf, '*');
1681 if (expect != XOPERATOR) {
1682 s = scan_ident(s, bufend, tokenbuf + 1, TRUE);
1687 if (strchr(tokenbuf,':'))
1688 croak(no_myglob,tokenbuf);
1689 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1690 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
1691 force_next(PRIVATEREF);
1694 if (!strchr(tokenbuf,':')) {
1695 if (tmp = pad_findmy(tokenbuf)) {
1696 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1697 nextval[nexttoke].opval->op_targ = tmp;
1698 force_next(PRIVATEREF);
1702 force_ident(tokenbuf + 1, *tokenbuf);
1730 if (last_lop == oldoldbufptr || last_uni == oldoldbufptr)
1731 oldbufptr = oldoldbufptr; /* allow print(STDOUT 123) */
1736 if (curcop->cop_line < copline)
1737 copline = curcop->cop_line;
1748 if (lex_brackets <= 0)
1749 yyerror("Unmatched right bracket");
1752 if (lex_state == LEX_INTERPNORMAL) {
1753 if (lex_brackets == 0) {
1754 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
1755 lex_state = LEX_INTERPEND;
1762 if (lex_brackets > 100) {
1763 char* newlb = Renew(lex_brackstack, lex_brackets + 1, char);
1764 if (newlb != lex_brackstack) {
1766 lex_brackstack = newlb;
1771 if (lex_formbrack) {
1775 if (oldoldbufptr == last_lop)
1776 lex_brackstack[lex_brackets++] = XTERM;
1778 lex_brackstack[lex_brackets++] = XOPERATOR;
1779 OPERATOR(HASHBRACK);
1782 while (s < bufend && (*s == ' ' || *s == '\t'))
1784 if (s < bufend && (isALPHA(*s) || *s == '_')) {
1785 d = scan_word(s, tokenbuf, FALSE, &len);
1786 while (d < bufend && (*d == ' ' || *d == '\t'))
1790 (keyword(tokenbuf, len) ||
1791 perl_get_cv(tokenbuf, FALSE) ))
1792 warn("Ambiguous use of {%s} resolved to {\"%s\"}",
1793 tokenbuf, tokenbuf);
1794 s = force_word(s,WORD,FALSE,TRUE,FALSE);
1799 lex_brackstack[lex_brackets++] = XSTATE;
1803 lex_brackstack[lex_brackets++] = XOPERATOR;
1808 if (oldoldbufptr == last_lop)
1809 lex_brackstack[lex_brackets++] = XTERM;
1811 lex_brackstack[lex_brackets++] = XOPERATOR;
1814 OPERATOR(HASHBRACK);
1816 for (t = s; t < bufend && isALNUM(*t); t++) ;
1818 else if (*s == '\'' || *s == '"') {
1825 while (t < bufend && isSPACE(*t))
1827 if ((*t == ',' && !isLOWER(*s)) || (*t == '=' && t[1] == '>'))
1828 OPERATOR(HASHBRACK);
1832 lex_brackstack[lex_brackets-1] = XSTATE;
1838 yylval.ival = curcop->cop_line;
1839 if (isSPACE(*s) || *s == '#')
1840 copline = NOLINE; /* invalidate current command line number */
1845 if (lex_brackets <= 0)
1846 yyerror("Unmatched right bracket");
1848 expect = (expectation)lex_brackstack[--lex_brackets];
1849 if (lex_brackets < lex_formbrack)
1851 if (lex_state == LEX_INTERPNORMAL) {
1852 if (lex_brackets == 0) {
1853 if (lex_fakebrack) {
1854 lex_state = LEX_INTERPEND;
1856 return yylex(); /* ignore fake brackets */
1858 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
1859 lex_state = LEX_INTERPEND;
1862 if (lex_brackets < lex_fakebrack) {
1865 return yylex(); /* ignore fake brackets */
1875 if (expect == XOPERATOR) {
1876 if (dowarn && isALPHA(*s) && bufptr == SvPVX(linestr)) {
1884 s = scan_ident(s-1, bufend, tokenbuf, TRUE);
1887 force_ident(tokenbuf, '&');
1891 yylval.ival = (OPpENTERSUB_AMPER<<8);
1910 if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp))
1911 warn("Reversed %c= operator",tmp);
1913 if (expect == XSTATE && isALPHA(tmp) &&
1914 (s == SvPVX(linestr)+1 || s[-2] == '\n') )
1916 if (in_eval && !rsfp) {
1921 if (strnEQ(s,"=cut",4)) {
1938 if (lex_brackets < lex_formbrack) {
1940 for (t = s; *t == ' ' || *t == '\t'; t++) ;
1941 if (*t == '\n' || *t == '#') {
1959 if (expect != XOPERATOR) {
1960 if (s[1] != '<' && !strchr(s,'>'))
1963 s = scan_heredoc(s);
1965 s = scan_inputsymbol(s);
1966 TERM(sublex_start());
1971 SHop(OP_LEFT_SHIFT);
1985 SHop(OP_RIGHT_SHIFT);
1992 if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) {
1993 s = scan_ident(s+1, bufend, tokenbuf+1, FALSE);
1994 if (expect == XOPERATOR) {
1995 if (lex_formbrack && lex_brackets == lex_formbrack) {
1998 return ','; /* grandfather non-comma-format format */
2001 no_op("Array length",s);
2003 else if (!tokenbuf[1])
2005 if (!strchr(tokenbuf+1,':')) {
2007 if (tmp = pad_findmy(tokenbuf)) {
2008 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2009 nextval[nexttoke].opval->op_targ = tmp;
2011 force_next(PRIVATEREF);
2016 force_ident(tokenbuf+1, *tokenbuf);
2019 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
2020 if (expect == XOPERATOR) {
2021 if (lex_formbrack && lex_brackets == lex_formbrack) {
2024 return ','; /* grandfather non-comma-format format */
2030 expectation oldexpect = expect;
2032 /* This kludge not intended to be bulletproof. */
2033 if (tokenbuf[1] == '[' && !tokenbuf[2]) {
2034 yylval.opval = newSVOP(OP_CONST, 0,
2035 newSViv((IV)compiling.cop_arybase));
2036 yylval.opval->op_private = OPpCONST_ARYBASE;
2042 if (*s == '[' && oldexpect != XREF) {
2043 for (t = s+1; isSPACE(*t) || isALNUM(*t) || *t == '$'; t++) ;
2045 bufptr = skipspace(bufptr);
2046 while (t < bufend && *t != ']') t++;
2047 warn("Multidimensional syntax %.*s not supported",
2048 t-bufptr+1, bufptr);
2051 if (*s == '{' && strEQ(tokenbuf, "$SIG") &&
2052 (t = strchr(s,'}')) && (t = strchr(t,'='))) {
2055 for (t++; isSPACE(*t); t++) ;
2056 if (isIDFIRST(*t)) {
2057 t = scan_word(t, tmpbuf, TRUE, &len);
2058 if (*t != '(' && perl_get_cv(tmpbuf, FALSE))
2059 warn("You need to quote \"%s\"", tmpbuf);
2064 if (lex_state == LEX_NORMAL && isSPACE(*s)) {
2065 bool islop = (last_lop == oldoldbufptr);
2067 if (!islop || last_lop_op == OP_GREPSTART)
2069 else if (strchr("$@\"'`q", *s))
2070 expect = XTERM; /* e.g. print $fh "foo" */
2071 else if (strchr("&*<%", *s) && isIDFIRST(s[1]))
2072 expect = XTERM; /* e.g. print $fh &sub */
2073 else if (isDIGIT(*s))
2074 expect = XTERM; /* e.g. print $fh 3 */
2075 else if (*s == '.' && isDIGIT(s[1]))
2076 expect = XTERM; /* e.g. print $fh .3 */
2077 else if (strchr("/?-+", *s) && !isSPACE(s[1]))
2078 expect = XTERM; /* e.g. print $fh -1 */
2079 else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]))
2080 expect = XTERM; /* print $fh <<"EOF" */
2083 if (strchr(tokenbuf,':'))
2084 croak(no_myglob,tokenbuf);
2085 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2086 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
2087 force_next(PRIVATEREF);
2089 else if (!strchr(tokenbuf,':')) {
2090 if (oldexpect != XREF || oldoldbufptr == last_lop) {
2091 if (intuit_more(s)) {
2098 if (tmp = pad_findmy(tokenbuf)) {
2099 if (!tokenbuf[2] && *tokenbuf =='$' &&
2100 tokenbuf[1] <= 'b' && tokenbuf[1] >= 'a')
2102 for (d = in_eval ? oldoldbufptr : SvPVX(linestr);
2103 d < bufend && *d != '\n';
2106 if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) {
2107 croak("Can't use \"my %s\" in sort comparison",
2112 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2113 nextval[nexttoke].opval->op_targ = tmp;
2114 force_next(PRIVATEREF);
2117 force_ident(tokenbuf+1, *tokenbuf);
2120 force_ident(tokenbuf+1, *tokenbuf);
2124 yyerror("Final $ should be \\$ or $name");
2130 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
2131 if (expect == XOPERATOR)
2139 if (strchr(tokenbuf,':'))
2140 croak(no_myglob,tokenbuf);
2141 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2142 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
2143 force_next(PRIVATEREF);
2146 else if (!strchr(tokenbuf,':')) {
2147 if (intuit_more(s)) {
2151 if (tmp = pad_findmy(tokenbuf)) {
2152 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2153 nextval[nexttoke].opval->op_targ = tmp;
2154 force_next(PRIVATEREF);
2159 /* Force them to make up their mind on "@foo". */
2160 if (lex_state != LEX_NORMAL && !lex_brackets &&
2161 ( !(gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV)) ||
2167 sprintf(tmpbuf, "Literal @%s now requires backslash",tokenbuf+1);
2171 /* Warn about @ where they meant $. */
2173 if (*s == '[' || *s == '{') {
2175 while (*t && (isALNUM(*t) || strchr(" \t$#+-'\"", *t)))
2177 if (*t == '}' || *t == ']') {
2179 bufptr = skipspace(bufptr);
2180 warn("Scalar value %.*s better written as $%.*s",
2181 t-bufptr, bufptr, t-bufptr-1, bufptr+1);
2185 force_ident(tokenbuf+1, *tokenbuf);
2189 yyerror("Final @ should be \\@ or @name");
2194 case '/': /* may either be division or pattern */
2195 case '?': /* may either be conditional or pattern */
2196 if (expect != XOPERATOR) {
2199 TERM(sublex_start());
2207 if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' &&
2208 (s == SvPVX(linestr) || s[-1] == '\n') ) {
2213 if (expect == XOPERATOR || !isDIGIT(s[1])) {
2219 yylval.ival = OPf_SPECIAL;
2225 if (expect != XOPERATOR)
2230 case '0': case '1': case '2': case '3': case '4':
2231 case '5': case '6': case '7': case '8': case '9':
2233 if (expect == XOPERATOR)
2239 if (expect == XOPERATOR) {
2240 if (lex_formbrack && lex_brackets == lex_formbrack) {
2243 return ','; /* grandfather non-comma-format format */
2249 missingterm((char*)0);
2250 yylval.ival = OP_CONST;
2251 TERM(sublex_start());
2255 if (expect == XOPERATOR) {
2256 if (lex_formbrack && lex_brackets == lex_formbrack) {
2259 return ','; /* grandfather non-comma-format format */
2265 missingterm((char*)0);
2266 yylval.ival = OP_CONST;
2267 for (d = SvPV(lex_stuff, len); len; len--, d++) {
2268 if (*d == '$' || *d == '@' || *d == '\\') {
2269 yylval.ival = OP_STRINGIFY;
2273 TERM(sublex_start());
2277 if (expect == XOPERATOR)
2278 no_op("Backticks",s);
2280 missingterm((char*)0);
2281 yylval.ival = OP_BACKTICK;
2283 TERM(sublex_start());
2287 if (dowarn && lex_inwhat && isDIGIT(*s))
2288 warn("Can't use \\%c to mean $%c in expression", *s, *s);
2289 if (expect == XOPERATOR)
2290 no_op("Backslash",s);
2294 if (isDIGIT(s[1]) && expect == XOPERATOR) {
2330 s = scan_word(s, tokenbuf, FALSE, &len);
2332 if (*s == ':' && s[1] == ':' && strNE(tokenbuf, "CORE"))
2335 tmp = keyword(tokenbuf, len);
2337 /* Is this a word before a => operator? */
2339 while (d < bufend && (*d == ' ' || *d == '\t'))
2340 d++; /* no comments skipped here, or s### is misparsed */
2341 if (strnEQ(d,"=>",2)) {
2343 if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE)))
2344 warn("Ambiguous use of %s => resolved to \"%s\" =>",
2345 tokenbuf, tokenbuf);
2346 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2347 yylval.opval->op_private = OPpCONST_BARE;
2351 if (tmp < 0) { /* second-class keyword? */
2353 if (expect != XOPERATOR &&
2354 (*s != ':' || s[1] != ':') &&
2355 (gv = gv_fetchpv(tokenbuf, FALSE, SVt_PVCV)) &&
2367 default: /* not a keyword */
2370 char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]);
2372 /* Get the rest if it looks like a package qualifier */
2374 if (*s == '\'' || *s == ':' && s[1] == ':') {
2375 s = scan_word(s, tokenbuf + len, TRUE, &len);
2377 croak("Bad name after %s::", tokenbuf);
2380 /* Do special processing at start of statement. */
2382 if (expect == XSTATE) {
2383 while (isSPACE(*s)) s++;
2384 if (*s == ':') { /* It's a label. */
2385 yylval.pval = savepv(tokenbuf);
2391 else if (expect == XOPERATOR) {
2392 if (bufptr == SvPVX(linestr)) {
2398 no_op("Bare word",s);
2401 /* Look for a subroutine with this name in current package. */
2403 gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV);
2405 /* Presume this is going to be a bareword of some sort. */
2408 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2409 yylval.opval->op_private = OPpCONST_BARE;
2411 /* See if it's the indirect object for a list operator. */
2414 oldoldbufptr < bufptr &&
2415 (oldoldbufptr == last_lop || oldoldbufptr == last_uni) &&
2416 /* NO SKIPSPACE BEFORE HERE! */
2418 (opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) )
2420 bool immediate_paren = *s == '(';
2422 /* (Now we can afford to cross potential line boundary.) */
2425 /* Two barewords in a row may indicate method call. */
2427 if ((isALPHA(*s) || *s == '$') && (tmp=intuit_method(s,gv)))
2430 /* If not a declared subroutine, it's an indirect object. */
2431 /* (But it's an indir obj regardless for sort.) */
2433 if ((last_lop_op == OP_SORT ||
2434 (!immediate_paren && (!gv || !GvCV(gv))) ) &&
2435 (last_lop_op != OP_MAPSTART && last_lop_op != OP_GREPSTART)){
2436 expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR;
2441 /* If followed by a paren, it's certainly a subroutine. */
2447 nextval[nexttoke].opval = yylval.opval;
2454 /* If followed by var or block, call it a method (unless sub) */
2456 if ((*s == '$' || *s == '{') && (!gv || !GvCV(gv))) {
2457 last_lop = oldbufptr;
2458 last_lop_op = OP_METHOD;
2462 /* If followed by a bareword, see if it looks like indir obj. */
2464 if ((isALPHA(*s) || *s == '$') && (tmp = intuit_method(s,gv)))
2467 /* Not a method, so call it a subroutine (if defined) */
2469 if (gv && GvCV(gv)) {
2472 nextval[nexttoke].opval = yylval.opval;
2478 if (lastchar == '-')
2479 warn("Ambiguous use of -%s resolved as -&%s()",
2480 tokenbuf, tokenbuf);
2481 last_lop = oldbufptr;
2482 last_lop_op = OP_ENTERSUB;
2483 /* Check for a constant sub */
2485 SV *sv = cv_const_sv(cv);
2487 SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv);
2488 ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc(sv);
2489 yylval.opval->op_private = 0;
2494 /* Resolve to GV now. */
2495 op_free(yylval.opval);
2496 yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv));
2497 /* Is there a prototype? */
2500 char *proto = SvPV((SV*)cv, len);
2503 if (strEQ(proto, "$"))
2505 if (*proto == '&' && *s == '{') {
2506 sv_setpv(subname,"__ANON__");
2510 nextval[nexttoke].opval = yylval.opval;
2516 if (hints & HINT_STRICT_SUBS &&
2519 last_lop_op != OP_TRUNCATE && /* S/F prototype in opcode.pl */
2520 last_lop_op != OP_ACCEPT &&
2521 last_lop_op != OP_PIPE_OP &&
2522 last_lop_op != OP_SOCKPAIR)
2525 "Bareword \"%s\" not allowed while \"strict subs\" in use",
2530 /* Call it a bare word */
2534 if (lastchar != '-') {
2535 for (d = tokenbuf; *d && isLOWER(*d); d++) ;
2537 warn(warn_reserved, tokenbuf);
2540 if (lastchar && strchr("*%&", lastchar)) {
2541 warn("Operator or semicolon missing before %c%s",
2542 lastchar, tokenbuf);
2543 warn("Ambiguous use of %c resolved as operator %c",
2544 lastchar, lastchar);
2550 case KEY___FILE__: {
2551 if (tokenbuf[2] == 'L')
2552 (void)sprintf(tokenbuf,"%ld",(long)curcop->cop_line);
2554 strcpy(tokenbuf, SvPVX(GvSV(curcop->cop_filegv)));
2555 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2564 if (rsfp && (!in_eval || tokenbuf[2] == 'D')) {
2566 char *pname = "main";
2567 if (tokenbuf[2] == 'D')
2568 pname = HvNAME(curstash ? curstash : defstash);
2569 sprintf(dname,"%s::DATA", pname);
2570 gv = gv_fetchpv(dname,TRUE, SVt_PVIO);
2573 GvIOp(gv) = newIO();
2574 IoIFP(GvIOp(gv)) = rsfp;
2575 #if defined(HAS_FCNTL) && defined(F_SETFD)
2577 int fd = PerlIO_fileno(rsfp);
2578 fcntl(fd,F_SETFD,fd >= 3);
2582 IoTYPE(GvIOp(gv)) = '|';
2583 else if ((PerlIO*)rsfp == PerlIO_stdin())
2584 IoTYPE(GvIOp(gv)) = '-';
2586 IoTYPE(GvIOp(gv)) = '<';
2596 if (expect == XSTATE) {
2603 if (*s == ':' && s[1] == ':') {
2606 s = scan_word(s, tokenbuf, FALSE, &len);
2607 tmp = keyword(tokenbuf, len);
2621 LOP(OP_ACCEPT,XTERM);
2627 LOP(OP_ATAN2,XTERM);
2636 LOP(OP_BLESS,XTERM);
2645 (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */
2665 LOP(OP_CRYPT,XTERM);
2669 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
2670 if (*d != '0' && isDIGIT(*d))
2671 yywarn("chmod: mode argument is missing initial 0");
2673 LOP(OP_CHMOD,XTERM);
2676 LOP(OP_CHOWN,XTERM);
2679 LOP(OP_CONNECT,XTERM);
2695 s = force_word(s,WORD,FALSE,TRUE,FALSE);
2699 hints |= HINT_BLOCK_SCOPE;
2709 gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV);
2710 LOP(OP_DBMOPEN,XTERM);
2716 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2723 yylval.ival = curcop->cop_line;
2737 expect = (*s == '{') ? XTERMBLOCK : XTERM;
2738 UNIBRACK(OP_ENTEREVAL);
2753 case KEY_endhostent:
2759 case KEY_endservent:
2762 case KEY_endprotoent:
2773 yylval.ival = curcop->cop_line;
2774 while (s < bufend && isSPACE(*s))
2777 croak("Missing $ on loop variable");
2781 LOP(OP_FORMLINE,XTERM);
2787 LOP(OP_FCNTL,XTERM);
2793 LOP(OP_FLOCK,XTERM);
2802 LOP(OP_GREPSTART, *s == '(' ? XTERM : XREF);
2805 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2820 case KEY_getpriority:
2821 LOP(OP_GETPRIORITY,XTERM);
2823 case KEY_getprotobyname:
2826 case KEY_getprotobynumber:
2827 LOP(OP_GPBYNUMBER,XTERM);
2829 case KEY_getprotoent:
2841 case KEY_getpeername:
2842 UNI(OP_GETPEERNAME);
2844 case KEY_gethostbyname:
2847 case KEY_gethostbyaddr:
2848 LOP(OP_GHBYADDR,XTERM);
2850 case KEY_gethostent:
2853 case KEY_getnetbyname:
2856 case KEY_getnetbyaddr:
2857 LOP(OP_GNBYADDR,XTERM);
2862 case KEY_getservbyname:
2863 LOP(OP_GSBYNAME,XTERM);
2865 case KEY_getservbyport:
2866 LOP(OP_GSBYPORT,XTERM);
2868 case KEY_getservent:
2871 case KEY_getsockname:
2872 UNI(OP_GETSOCKNAME);
2874 case KEY_getsockopt:
2875 LOP(OP_GSOCKOPT,XTERM);
2897 yylval.ival = curcop->cop_line;
2901 LOP(OP_INDEX,XTERM);
2907 LOP(OP_IOCTL,XTERM);
2919 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2951 LOP(OP_LISTEN,XTERM);
2958 TERM(sublex_start());
2961 LOP(OP_MAPSTART,XREF);
2964 LOP(OP_MKDIR,XTERM);
2967 LOP(OP_MSGCTL,XTERM);
2970 LOP(OP_MSGGET,XTERM);
2973 LOP(OP_MSGRCV,XTERM);
2976 LOP(OP_MSGSND,XTERM);
2984 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2991 if (expect != XSTATE)
2992 yyerror("\"no\" not allowed in expression");
2993 s = force_word(s,WORD,FALSE,TRUE,FALSE);
2994 s = force_version(s);
3003 if (isIDFIRST(*s)) {
3005 for (d = s; isALNUM(*d); d++) ;
3007 if (strchr("|&*+-=!?:.", *t))
3008 warn("Precedence problem: open %.*s should be open(%.*s)",
3014 yylval.ival = OP_OR;
3024 LOP(OP_OPEN_DIR,XTERM);
3027 checkcomma(s,tokenbuf,"filehandle");
3031 checkcomma(s,tokenbuf,"filehandle");
3050 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3054 LOP(OP_PIPE_OP,XTERM);
3059 missingterm((char*)0);
3060 yylval.ival = OP_CONST;
3061 TERM(sublex_start());
3069 missingterm((char*)0);
3071 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff));
3075 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(" ",1));
3078 yylval.ival = OP_SPLIT;
3082 last_lop = oldbufptr;
3083 last_lop_op = OP_SPLIT;
3089 missingterm((char*)0);
3090 yylval.ival = OP_STRINGIFY;
3091 if (SvIVX(lex_stuff) == '\'')
3092 SvIVX(lex_stuff) = 0; /* qq'$foo' should intepolate */
3093 TERM(sublex_start());
3098 missingterm((char*)0);
3099 yylval.ival = OP_BACKTICK;
3101 TERM(sublex_start());
3108 s = force_word(s,WORD,TRUE,TRUE,FALSE);
3109 if (isIDFIRST(*tokenbuf))
3110 gv_stashpvn(tokenbuf, strlen(tokenbuf), TRUE);
3112 yyerror("<> should be quotes");
3119 s = force_word(s,WORD,TRUE,FALSE,FALSE);
3123 LOP(OP_RENAME,XTERM);
3132 LOP(OP_RINDEX,XTERM);
3155 LOP(OP_REVERSE,XTERM);
3166 TERM(sublex_start());
3168 TOKEN(1); /* force error */
3177 LOP(OP_SELECT,XTERM);
3183 LOP(OP_SEMCTL,XTERM);
3186 LOP(OP_SEMGET,XTERM);
3189 LOP(OP_SEMOP,XTERM);
3195 LOP(OP_SETPGRP,XTERM);
3197 case KEY_setpriority:
3198 LOP(OP_SETPRIORITY,XTERM);
3200 case KEY_sethostent:
3206 case KEY_setservent:
3209 case KEY_setprotoent:
3219 LOP(OP_SEEKDIR,XTERM);
3221 case KEY_setsockopt:
3222 LOP(OP_SSOCKOPT,XTERM);
3228 LOP(OP_SHMCTL,XTERM);
3231 LOP(OP_SHMGET,XTERM);
3234 LOP(OP_SHMREAD,XTERM);
3237 LOP(OP_SHMWRITE,XTERM);
3240 LOP(OP_SHUTDOWN,XTERM);
3249 LOP(OP_SOCKET,XTERM);
3251 case KEY_socketpair:
3252 LOP(OP_SOCKPAIR,XTERM);
3255 checkcomma(s,tokenbuf,"subroutine name");
3257 if (*s == ';' || *s == ')') /* probably a close */
3258 croak("sort is now a reserved word");
3260 s = force_word(s,WORD,TRUE,TRUE,TRUE);
3264 LOP(OP_SPLIT,XTERM);
3267 LOP(OP_SPRINTF,XTERM);
3270 LOP(OP_SPLICE,XTERM);
3286 LOP(OP_SUBSTR,XTERM);
3293 if (isIDFIRST(*s) || *s == '\'' || *s == ':') {
3296 d = scan_word(s, tmpbuf, TRUE, &len);
3297 if (strchr(tmpbuf, ':'))
3298 sv_setpv(subname, tmpbuf);
3300 sv_setsv(subname,curstname);
3301 sv_catpvn(subname,"::",2);
3302 sv_catpvn(subname,tmpbuf,len);
3304 s = force_word(s,WORD,FALSE,TRUE,TRUE);
3308 expect = XTERMBLOCK;
3309 sv_setpv(subname,"?");
3312 if (tmp == KEY_format) {
3315 lex_formbrack = lex_brackets + 1;
3319 /* Look for a prototype */
3324 SvREFCNT_dec(lex_stuff);
3326 croak("Prototype not terminated");
3329 nextval[1] = nextval[0];
3330 nexttype[1] = nexttype[0];
3331 nextval[0].opval = (OP*)newSVOP(OP_CONST, 0, lex_stuff);
3332 nexttype[0] = THING;
3333 if (nexttoke == 1) {
3334 lex_defer = lex_state;
3335 lex_expect = expect;
3336 lex_state = LEX_KNOWNEXT;
3341 if (*SvPV(subname,na) == '?') {
3342 sv_setpv(subname,"__ANON__");
3349 LOP(OP_SYSTEM,XREF);
3352 LOP(OP_SYMLINK,XTERM);
3355 LOP(OP_SYSCALL,XTERM);
3358 LOP(OP_SYSOPEN,XTERM);
3361 LOP(OP_SYSREAD,XTERM);
3364 LOP(OP_SYSWRITE,XTERM);
3368 TERM(sublex_start());
3389 LOP(OP_TRUNCATE,XTERM);
3401 yylval.ival = curcop->cop_line;
3405 yylval.ival = curcop->cop_line;
3409 LOP(OP_UNLINK,XTERM);
3415 LOP(OP_UNPACK,XTERM);
3418 LOP(OP_UTIME,XTERM);
3422 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
3423 if (*d != '0' && isDIGIT(*d))
3424 yywarn("umask: argument is missing initial 0");
3429 LOP(OP_UNSHIFT,XTERM);
3432 if (expect != XSTATE)
3433 yyerror("\"use\" not allowed in expression");
3436 s = force_version(s);
3437 if(*s == ';' || (s = skipspace(s), *s == ';')) {
3438 nextval[nexttoke].opval = Nullop;
3443 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3444 s = force_version(s);
3457 yylval.ival = curcop->cop_line;
3461 hints |= HINT_BLOCK_SCOPE;
3468 LOP(OP_WAITPID,XTERM);
3474 gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */
3478 if (expect == XOPERATOR)
3484 yylval.ival = OP_XOR;
3489 TERM(sublex_start());
3502 if (strEQ(d,"__LINE__")) return -KEY___LINE__;
3503 if (strEQ(d,"__FILE__")) return -KEY___FILE__;
3504 if (strEQ(d,"__DATA__")) return KEY___DATA__;
3505 if (strEQ(d,"__END__")) return KEY___END__;
3509 if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD;
3514 if (strEQ(d,"and")) return -KEY_and;
3515 if (strEQ(d,"abs")) return -KEY_abs;
3518 if (strEQ(d,"alarm")) return -KEY_alarm;
3519 if (strEQ(d,"atan2")) return -KEY_atan2;
3522 if (strEQ(d,"accept")) return -KEY_accept;
3527 if (strEQ(d,"BEGIN")) return KEY_BEGIN;
3530 if (strEQ(d,"bless")) return -KEY_bless;
3531 if (strEQ(d,"bind")) return -KEY_bind;
3532 if (strEQ(d,"binmode")) return -KEY_binmode;
3535 if (strEQ(d,"CORE")) return -KEY_CORE;
3540 if (strEQ(d,"cmp")) return -KEY_cmp;
3541 if (strEQ(d,"chr")) return -KEY_chr;
3542 if (strEQ(d,"cos")) return -KEY_cos;
3545 if (strEQ(d,"chop")) return KEY_chop;
3548 if (strEQ(d,"close")) return -KEY_close;
3549 if (strEQ(d,"chdir")) return -KEY_chdir;
3550 if (strEQ(d,"chomp")) return KEY_chomp;
3551 if (strEQ(d,"chmod")) return -KEY_chmod;
3552 if (strEQ(d,"chown")) return -KEY_chown;
3553 if (strEQ(d,"crypt")) return -KEY_crypt;
3556 if (strEQ(d,"chroot")) return -KEY_chroot;
3557 if (strEQ(d,"caller")) return -KEY_caller;
3560 if (strEQ(d,"connect")) return -KEY_connect;
3563 if (strEQ(d,"closedir")) return -KEY_closedir;
3564 if (strEQ(d,"continue")) return -KEY_continue;
3569 if (strEQ(d,"DESTROY")) return KEY_DESTROY;
3574 if (strEQ(d,"do")) return KEY_do;
3577 if (strEQ(d,"die")) return -KEY_die;
3580 if (strEQ(d,"dump")) return -KEY_dump;
3583 if (strEQ(d,"delete")) return KEY_delete;
3586 if (strEQ(d,"defined")) return KEY_defined;
3587 if (strEQ(d,"dbmopen")) return -KEY_dbmopen;
3590 if (strEQ(d,"dbmclose")) return -KEY_dbmclose;
3595 if (strEQ(d,"EQ")) { deprecate(d); return -KEY_eq;}
3596 if (strEQ(d,"END")) return KEY_END;
3601 if (strEQ(d,"eq")) return -KEY_eq;
3604 if (strEQ(d,"eof")) return -KEY_eof;
3605 if (strEQ(d,"exp")) return -KEY_exp;
3608 if (strEQ(d,"else")) return KEY_else;
3609 if (strEQ(d,"exit")) return -KEY_exit;
3610 if (strEQ(d,"eval")) return KEY_eval;
3611 if (strEQ(d,"exec")) return -KEY_exec;
3612 if (strEQ(d,"each")) return KEY_each;
3615 if (strEQ(d,"elsif")) return KEY_elsif;
3618 if (strEQ(d,"exists")) return KEY_exists;
3619 if (strEQ(d,"elseif")) warn("elseif should be elsif");
3622 if (strEQ(d,"endgrent")) return -KEY_endgrent;
3623 if (strEQ(d,"endpwent")) return -KEY_endpwent;
3626 if (strEQ(d,"endnetent")) return -KEY_endnetent;
3629 if (strEQ(d,"endhostent")) return -KEY_endhostent;
3630 if (strEQ(d,"endservent")) return -KEY_endservent;
3633 if (strEQ(d,"endprotoent")) return -KEY_endprotoent;
3640 if (strEQ(d,"for")) return KEY_for;
3643 if (strEQ(d,"fork")) return -KEY_fork;
3646 if (strEQ(d,"fcntl")) return -KEY_fcntl;
3647 if (strEQ(d,"flock")) return -KEY_flock;
3650 if (strEQ(d,"format")) return KEY_format;
3651 if (strEQ(d,"fileno")) return -KEY_fileno;
3654 if (strEQ(d,"foreach")) return KEY_foreach;
3657 if (strEQ(d,"formline")) return -KEY_formline;
3663 if (strEQ(d,"GT")) { deprecate(d); return -KEY_gt;}
3664 if (strEQ(d,"GE")) { deprecate(d); return -KEY_ge;}
3668 if (strnEQ(d,"get",3)) {
3673 if (strEQ(d,"ppid")) return -KEY_getppid;
3674 if (strEQ(d,"pgrp")) return -KEY_getpgrp;
3677 if (strEQ(d,"pwent")) return -KEY_getpwent;
3678 if (strEQ(d,"pwnam")) return -KEY_getpwnam;
3679 if (strEQ(d,"pwuid")) return -KEY_getpwuid;
3682 if (strEQ(d,"peername")) return -KEY_getpeername;
3683 if (strEQ(d,"protoent")) return -KEY_getprotoent;
3684 if (strEQ(d,"priority")) return -KEY_getpriority;
3687 if (strEQ(d,"protobyname")) return -KEY_getprotobyname;
3690 if (strEQ(d,"protobynumber"))return -KEY_getprotobynumber;
3694 else if (*d == 'h') {
3695 if (strEQ(d,"hostbyname")) return -KEY_gethostbyname;
3696 if (strEQ(d,"hostbyaddr")) return -KEY_gethostbyaddr;
3697 if (strEQ(d,"hostent")) return -KEY_gethostent;
3699 else if (*d == 'n') {
3700 if (strEQ(d,"netbyname")) return -KEY_getnetbyname;
3701 if (strEQ(d,"netbyaddr")) return -KEY_getnetbyaddr;
3702 if (strEQ(d,"netent")) return -KEY_getnetent;
3704 else if (*d == 's') {
3705 if (strEQ(d,"servbyname")) return -KEY_getservbyname;
3706 if (strEQ(d,"servbyport")) return -KEY_getservbyport;
3707 if (strEQ(d,"servent")) return -KEY_getservent;
3708 if (strEQ(d,"sockname")) return -KEY_getsockname;
3709 if (strEQ(d,"sockopt")) return -KEY_getsockopt;
3711 else if (*d == 'g') {
3712 if (strEQ(d,"grent")) return -KEY_getgrent;
3713 if (strEQ(d,"grnam")) return -KEY_getgrnam;
3714 if (strEQ(d,"grgid")) return -KEY_getgrgid;
3716 else if (*d == 'l') {
3717 if (strEQ(d,"login")) return -KEY_getlogin;
3719 else if (strEQ(d,"c")) return -KEY_getc;
3724 if (strEQ(d,"gt")) return -KEY_gt;
3725 if (strEQ(d,"ge")) return -KEY_ge;
3728 if (strEQ(d,"grep")) return KEY_grep;
3729 if (strEQ(d,"goto")) return KEY_goto;
3730 if (strEQ(d,"glob")) return -KEY_glob;
3733 if (strEQ(d,"gmtime")) return -KEY_gmtime;
3738 if (strEQ(d,"hex")) return -KEY_hex;
3743 if (strEQ(d,"if")) return KEY_if;
3746 if (strEQ(d,"int")) return -KEY_int;
3749 if (strEQ(d,"index")) return -KEY_index;
3750 if (strEQ(d,"ioctl")) return -KEY_ioctl;
3755 if (strEQ(d,"join")) return -KEY_join;
3759 if (strEQ(d,"keys")) return KEY_keys;
3760 if (strEQ(d,"kill")) return -KEY_kill;
3765 if (strEQ(d,"LT")) { deprecate(d); return -KEY_lt;}
3766 if (strEQ(d,"LE")) { deprecate(d); return -KEY_le;}
3772 if (strEQ(d,"lt")) return -KEY_lt;
3773 if (strEQ(d,"le")) return -KEY_le;
3774 if (strEQ(d,"lc")) return -KEY_lc;
3777 if (strEQ(d,"log")) return -KEY_log;
3780 if (strEQ(d,"last")) return KEY_last;
3781 if (strEQ(d,"link")) return -KEY_link;
3784 if (strEQ(d,"local")) return KEY_local;
3785 if (strEQ(d,"lstat")) return -KEY_lstat;
3788 if (strEQ(d,"length")) return -KEY_length;
3789 if (strEQ(d,"listen")) return -KEY_listen;
3792 if (strEQ(d,"lcfirst")) return -KEY_lcfirst;
3795 if (strEQ(d,"localtime")) return -KEY_localtime;
3801 case 1: return KEY_m;
3803 if (strEQ(d,"my")) return KEY_my;
3806 if (strEQ(d,"map")) return KEY_map;
3809 if (strEQ(d,"mkdir")) return -KEY_mkdir;
3812 if (strEQ(d,"msgctl")) return -KEY_msgctl;
3813 if (strEQ(d,"msgget")) return -KEY_msgget;
3814 if (strEQ(d,"msgrcv")) return -KEY_msgrcv;
3815 if (strEQ(d,"msgsnd")) return -KEY_msgsnd;
3820 if (strEQ(d,"NE")) { deprecate(d); return -KEY_ne;}
3823 if (strEQ(d,"next")) return KEY_next;
3824 if (strEQ(d,"ne")) return -KEY_ne;
3825 if (strEQ(d,"not")) return -KEY_not;
3826 if (strEQ(d,"no")) return KEY_no;
3831 if (strEQ(d,"or")) return -KEY_or;
3834 if (strEQ(d,"ord")) return -KEY_ord;
3835 if (strEQ(d,"oct")) return -KEY_oct;
3838 if (strEQ(d,"open")) return -KEY_open;
3841 if (strEQ(d,"opendir")) return -KEY_opendir;
3848 if (strEQ(d,"pop")) return KEY_pop;
3849 if (strEQ(d,"pos")) return KEY_pos;
3852 if (strEQ(d,"push")) return KEY_push;
3853 if (strEQ(d,"pack")) return -KEY_pack;
3854 if (strEQ(d,"pipe")) return -KEY_pipe;
3857 if (strEQ(d,"print")) return KEY_print;
3860 if (strEQ(d,"printf")) return KEY_printf;
3863 if (strEQ(d,"package")) return KEY_package;
3866 if (strEQ(d,"prototype")) return KEY_prototype;
3871 if (strEQ(d,"q")) return KEY_q;
3872 if (strEQ(d,"qq")) return KEY_qq;
3873 if (strEQ(d,"qw")) return KEY_qw;
3874 if (strEQ(d,"qx")) return KEY_qx;
3876 else if (strEQ(d,"quotemeta")) return -KEY_quotemeta;
3881 if (strEQ(d,"ref")) return -KEY_ref;
3884 if (strEQ(d,"read")) return -KEY_read;
3885 if (strEQ(d,"rand")) return -KEY_rand;
3886 if (strEQ(d,"recv")) return -KEY_recv;
3887 if (strEQ(d,"redo")) return KEY_redo;
3890 if (strEQ(d,"rmdir")) return -KEY_rmdir;
3891 if (strEQ(d,"reset")) return -KEY_reset;
3894 if (strEQ(d,"return")) return KEY_return;
3895 if (strEQ(d,"rename")) return -KEY_rename;
3896 if (strEQ(d,"rindex")) return -KEY_rindex;
3899 if (strEQ(d,"require")) return -KEY_require;
3900 if (strEQ(d,"reverse")) return -KEY_reverse;
3901 if (strEQ(d,"readdir")) return -KEY_readdir;
3904 if (strEQ(d,"readlink")) return -KEY_readlink;
3905 if (strEQ(d,"readline")) return -KEY_readline;
3906 if (strEQ(d,"readpipe")) return -KEY_readpipe;
3909 if (strEQ(d,"rewinddir")) return -KEY_rewinddir;
3915 case 0: return KEY_s;
3917 if (strEQ(d,"scalar")) return KEY_scalar;
3922 if (strEQ(d,"seek")) return -KEY_seek;
3923 if (strEQ(d,"send")) return -KEY_send;
3926 if (strEQ(d,"semop")) return -KEY_semop;
3929 if (strEQ(d,"select")) return -KEY_select;
3930 if (strEQ(d,"semctl")) return -KEY_semctl;
3931 if (strEQ(d,"semget")) return -KEY_semget;
3934 if (strEQ(d,"setpgrp")) return -KEY_setpgrp;
3935 if (strEQ(d,"seekdir")) return -KEY_seekdir;
3938 if (strEQ(d,"setpwent")) return -KEY_setpwent;
3939 if (strEQ(d,"setgrent")) return -KEY_setgrent;
3942 if (strEQ(d,"setnetent")) return -KEY_setnetent;
3945 if (strEQ(d,"setsockopt")) return -KEY_setsockopt;
3946 if (strEQ(d,"sethostent")) return -KEY_sethostent;
3947 if (strEQ(d,"setservent")) return -KEY_setservent;
3950 if (strEQ(d,"setpriority")) return -KEY_setpriority;
3951 if (strEQ(d,"setprotoent")) return -KEY_setprotoent;
3958 if (strEQ(d,"shift")) return KEY_shift;
3961 if (strEQ(d,"shmctl")) return -KEY_shmctl;
3962 if (strEQ(d,"shmget")) return -KEY_shmget;
3965 if (strEQ(d,"shmread")) return -KEY_shmread;
3968 if (strEQ(d,"shmwrite")) return -KEY_shmwrite;
3969 if (strEQ(d,"shutdown")) return -KEY_shutdown;
3974 if (strEQ(d,"sin")) return -KEY_sin;
3977 if (strEQ(d,"sleep")) return -KEY_sleep;
3980 if (strEQ(d,"sort")) return KEY_sort;
3981 if (strEQ(d,"socket")) return -KEY_socket;
3982 if (strEQ(d,"socketpair")) return -KEY_socketpair;
3985 if (strEQ(d,"split")) return KEY_split;
3986 if (strEQ(d,"sprintf")) return -KEY_sprintf;
3987 if (strEQ(d,"splice")) return KEY_splice;
3990 if (strEQ(d,"sqrt")) return -KEY_sqrt;
3993 if (strEQ(d,"srand")) return -KEY_srand;
3996 if (strEQ(d,"stat")) return -KEY_stat;
3997 if (strEQ(d,"study")) return KEY_study;
4000 if (strEQ(d,"substr")) return -KEY_substr;
4001 if (strEQ(d,"sub")) return KEY_sub;
4006 if (strEQ(d,"system")) return -KEY_system;
4009 if (strEQ(d,"sysopen")) return -KEY_sysopen;
4010 if (strEQ(d,"sysread")) return -KEY_sysread;
4011 if (strEQ(d,"symlink")) return -KEY_symlink;
4012 if (strEQ(d,"syscall")) return -KEY_syscall;
4015 if (strEQ(d,"syswrite")) return -KEY_syswrite;
4024 if (strEQ(d,"tr")) return KEY_tr;
4027 if (strEQ(d,"tie")) return KEY_tie;
4030 if (strEQ(d,"tell")) return -KEY_tell;
4031 if (strEQ(d,"tied")) return KEY_tied;
4032 if (strEQ(d,"time")) return -KEY_time;
4035 if (strEQ(d,"times")) return -KEY_times;
4038 if (strEQ(d,"telldir")) return -KEY_telldir;
4041 if (strEQ(d,"truncate")) return -KEY_truncate;
4048 if (strEQ(d,"uc")) return -KEY_uc;
4051 if (strEQ(d,"use")) return KEY_use;
4054 if (strEQ(d,"undef")) return KEY_undef;
4055 if (strEQ(d,"until")) return KEY_until;
4056 if (strEQ(d,"untie")) return KEY_untie;
4057 if (strEQ(d,"utime")) return -KEY_utime;
4058 if (strEQ(d,"umask")) return -KEY_umask;
4061 if (strEQ(d,"unless")) return KEY_unless;
4062 if (strEQ(d,"unpack")) return -KEY_unpack;
4063 if (strEQ(d,"unlink")) return -KEY_unlink;
4066 if (strEQ(d,"unshift")) return KEY_unshift;
4067 if (strEQ(d,"ucfirst")) return -KEY_ucfirst;
4072 if (strEQ(d,"values")) return -KEY_values;
4073 if (strEQ(d,"vec")) return -KEY_vec;
4078 if (strEQ(d,"warn")) return -KEY_warn;
4079 if (strEQ(d,"wait")) return -KEY_wait;
4082 if (strEQ(d,"while")) return KEY_while;
4083 if (strEQ(d,"write")) return -KEY_write;
4086 if (strEQ(d,"waitpid")) return -KEY_waitpid;
4089 if (strEQ(d,"wantarray")) return -KEY_wantarray;
4094 if (len == 1) return -KEY_x;
4095 if (strEQ(d,"xor")) return -KEY_xor;
4098 if (len == 1) return KEY_y;
4107 checkcomma(s,name,what)
4114 if (dowarn && *s == ' ' && s[1] == '(') { /* XXX gotta be a better way */
4116 for (w = s+2; *w && level; w++) {
4123 for (; *w && isSPACE(*w); w++) ;
4124 if (!*w || !strchr(";|})]oa!=", *w)) /* an advisory hack only... */
4125 warn("%s (...) interpreted as function",name);
4127 while (s < bufend && isSPACE(*s))
4131 while (s < bufend && isSPACE(*s))
4133 if (isIDFIRST(*s)) {
4137 while (s < bufend && isSPACE(*s))
4142 kw = keyword(w, s - w) || perl_get_cv(w, FALSE) != 0;
4146 croak("No comma allowed after %s", what);
4152 scan_word(s, dest, allow_package, slp)
4158 register char *d = dest;
4162 else if (*s == '\'' && allow_package && isIDFIRST(s[1])) {
4167 else if (*s == ':' && s[1] == ':' && allow_package && isIDFIRST(s[2])) {
4180 scan_ident(s,send,dest,ck_uni)
4182 register char *send;
4190 if (lex_brackets == 0)
4203 else if (*s == '\'' && isIDFIRST(s[1])) {
4208 else if (*s == ':' && s[1] == ':') {
4219 if (lex_state != LEX_NORMAL)
4220 lex_state = LEX_INTERPENDMAYBE;
4223 if (*s == '$' && s[1] &&
4224 (isALPHA(s[1]) || strchr("$_{", s[1]) || strnEQ(s+1,"::",2)) )
4235 if (*d == '^' && *s && (isUPPER(*s) || strchr("[\\]^_?", *s))) {
4239 if (isSPACE(s[-1])) {
4240 while (s < send && (*s == ' ' || *s == '\t')) s++;
4243 if (isALPHA(*d) || *d == '_') {
4245 while (isALNUM(*s) || *s == ':')
4248 while (s < send && (*s == ' ' || *s == '\t')) s++;
4249 if ((*s == '[' || *s == '{')) {
4250 if (dowarn && keyword(dest, d - dest)) {
4251 char *brack = *s == '[' ? "[...]" : "{...}";
4252 warn("Ambiguous use of %c{%s%s} resolved to %c%s%s",
4253 funny, dest, brack, funny, dest, brack);
4255 lex_fakebrack = lex_brackets+1;
4257 lex_brackstack[lex_brackets++] = XOPERATOR;
4263 if (lex_state == LEX_INTERPNORMAL && !lex_brackets)
4264 lex_state = LEX_INTERPEND;
4268 (keyword(dest, d - dest) || perl_get_cv(dest, FALSE)))
4269 warn("Ambiguous use of %c{%s} resolved to %c%s",
4270 funny, dest, funny, dest);
4273 s = bracket; /* let the parser handle it */
4277 else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s))
4278 lex_state = LEX_INTERPEND;
4282 void pmflag(pmfl,ch)
4291 *pmfl |= PMf_GLOBAL;
4295 *pmfl |= PMf_MULTILINE;
4297 *pmfl |= PMf_SINGLELINE;
4299 *pmfl |= PMf_EXTENDED;
4309 s = scan_str(start);
4312 SvREFCNT_dec(lex_stuff);
4314 croak("Search pattern not terminated");
4316 pm = (PMOP*)newPMOP(OP_MATCH, 0);
4317 if (multi_open == '?')
4318 pm->op_pmflags |= PMf_ONCE;
4320 while (*s && strchr("iogmsx", *s))
4321 pmflag(&pm->op_pmflags,*s++);
4323 pm->op_pmpermflags = pm->op_pmflags;
4325 yylval.ival = OP_MATCH;
4337 yylval.ival = OP_NULL;
4339 s = scan_str(start);
4343 SvREFCNT_dec(lex_stuff);
4345 croak("Substitution pattern not terminated");
4348 if (s[-1] == multi_open)
4354 SvREFCNT_dec(lex_stuff);
4357 SvREFCNT_dec(lex_repl);
4359 croak("Substitution replacement not terminated");
4362 pm = (PMOP*)newPMOP(OP_SUBST, 0);
4363 while (*s && strchr("iogmsex", *s)) {
4369 pmflag(&pm->op_pmflags,*s++);
4374 pm->op_pmflags |= PMf_EVAL;
4375 repl = newSVpv("",0);
4377 sv_catpv(repl, es ? "eval " : "do ");
4378 sv_catpvn(repl, "{ ", 2);
4379 sv_catsv(repl, lex_repl);
4380 sv_catpvn(repl, " };", 2);
4381 SvCOMPILED_on(repl);
4382 SvREFCNT_dec(lex_repl);
4386 pm->op_pmpermflags = pm->op_pmflags;
4388 yylval.ival = OP_SUBST;
4396 if (!pm->op_pmshort && pm->op_pmregexp->regstart &&
4397 (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH)
4399 if (!(pm->op_pmregexp->reganch & ROPT_ANCH))
4400 pm->op_pmflags |= PMf_SCANFIRST;
4401 else if (pm->op_pmflags & PMf_FOLD)
4403 pm->op_pmshort = SvREFCNT_inc(pm->op_pmregexp->regstart);
4404 pm->op_pmslen = SvCUR(pm->op_pmshort);
4406 else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */
4407 if (pm->op_pmshort &&
4408 sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust))
4410 if (pm->op_pmflags & PMf_SCANFIRST) {
4411 SvREFCNT_dec(pm->op_pmshort);
4412 pm->op_pmshort = Nullsv;
4415 SvREFCNT_dec(pm->op_pmregexp->regmust);
4416 pm->op_pmregexp->regmust = Nullsv;
4420 if (!pm->op_pmshort || /* promote the better string */
4421 ((pm->op_pmflags & PMf_SCANFIRST) &&
4422 (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)) )){
4423 SvREFCNT_dec(pm->op_pmshort); /* ok if null */
4424 pm->op_pmshort = pm->op_pmregexp->regmust;
4425 pm->op_pmslen = SvCUR(pm->op_pmshort);
4426 pm->op_pmregexp->regmust = Nullsv;
4427 pm->op_pmflags |= PMf_SCANFIRST;
4443 yylval.ival = OP_NULL;
4445 s = scan_str(start);
4448 SvREFCNT_dec(lex_stuff);
4450 croak("Translation pattern not terminated");
4452 if (s[-1] == multi_open)
4458 SvREFCNT_dec(lex_stuff);
4461 SvREFCNT_dec(lex_repl);
4463 croak("Translation replacement not terminated");
4466 New(803,tbl,256,short);
4467 op = newPVOP(OP_TRANS, 0, (char*)tbl);
4469 complement = delete = squash = 0;
4470 while (*s == 'c' || *s == 'd' || *s == 's') {
4472 complement = OPpTRANS_COMPLEMENT;
4474 delete = OPpTRANS_DELETE;
4476 squash = OPpTRANS_SQUASH;
4479 op->op_private = delete|squash|complement;
4482 yylval.ival = OP_TRANS;
4491 I32 op_type = OP_SCALAR;
4502 for (peek = s; *peek == ' ' || *peek == '\t'; peek++) ;
4503 if (*peek && strchr("`'\"",*peek)) {
4506 s = cpytill(d,s,bufend,term,&len);
4517 deprecate("bare << to mean <<\"\"");
4520 } /* assuming tokenbuf won't clobber */
4525 if (rsfp || !(d=ninstr(s,bufend,d,d+1)))
4526 herewas = newSVpv(s,bufend-s);
4528 s--, herewas = newSVpv(s,d-s);
4529 s += SvCUR(herewas);
4531 tmpstr = NEWSV(87,80);
4532 sv_upgrade(tmpstr, SVt_PVIV);
4537 else if (term == '`') {
4538 op_type = OP_BACKTICK;
4539 SvIVX(tmpstr) = '\\';
4543 multi_start = curcop->cop_line;
4544 multi_open = multi_close = '<';
4548 while (s < bufend &&
4549 (*s != term || memcmp(s,tokenbuf,len) != 0) ) {
4554 curcop->cop_line = multi_start;
4555 missingterm(tokenbuf);
4557 sv_setpvn(tmpstr,d+1,s-d);
4559 sv_catpvn(herewas,s,bufend-s);
4560 sv_setsv(linestr,herewas);
4561 oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr);
4562 bufend = SvPVX(linestr) + SvCUR(linestr);
4565 sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */
4566 while (s >= bufend) { /* multiple line string? */
4568 !(oldoldbufptr = oldbufptr = s = filter_gets(linestr, rsfp))) {
4569 curcop->cop_line = multi_start;
4570 missingterm(tokenbuf);
4573 if (perldb && curstash != debstash) {
4574 SV *sv = NEWSV(88,0);
4576 sv_upgrade(sv, SVt_PVMG);
4577 sv_setsv(sv,linestr);
4578 av_store(GvAV(curcop->cop_filegv),
4579 (I32)curcop->cop_line,sv);
4581 bufend = SvPVX(linestr) + SvCUR(linestr);
4582 if (*s == term && memcmp(s,tokenbuf,len) == 0) {
4585 sv_catsv(linestr,herewas);
4586 bufend = SvPVX(linestr) + SvCUR(linestr);
4590 sv_catsv(tmpstr,linestr);
4593 multi_end = curcop->cop_line;
4595 if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) {
4596 SvLEN_set(tmpstr, SvCUR(tmpstr) + 1);
4597 Renew(SvPVX(tmpstr), SvLEN(tmpstr), char);
4599 SvREFCNT_dec(herewas);
4601 yylval.ival = op_type;
4606 scan_inputsymbol(start)
4609 register char *s = start;
4614 s = cpytill(d, s+1, bufend, '>', &len);
4618 croak("Unterminated <> operator");
4620 if (*d == '$' && d[1]) d++;
4621 while (*d && (isALNUM(*d) || *d == '\'' || *d == ':'))
4623 if (d - tokenbuf != len) {
4624 yylval.ival = OP_GLOB;
4626 s = scan_str(start);
4628 croak("Glob not terminated");
4634 (void)strcpy(d,"ARGV");
4637 if (tmp = pad_findmy(d)) {
4638 OP *op = newOP(OP_PADSV, 0);
4640 lex_op = (OP*)newUNOP(OP_READLINE, 0, newUNOP(OP_RV2GV, 0, op));
4643 GV *gv = gv_fetchpv(d+1,TRUE, SVt_PV);
4644 lex_op = (OP*)newUNOP(OP_READLINE, 0,
4645 newUNOP(OP_RV2GV, 0,
4646 newUNOP(OP_RV2SV, 0,
4647 newGVOP(OP_GV, 0, gv))));
4649 yylval.ival = OP_NULL;
4652 GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO);
4653 lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv));
4654 yylval.ival = OP_NULL;
4666 register char *s = start;
4675 multi_start = curcop->cop_line;
4677 if (term && (tmps = strchr("([{< )]}> )]}>",term)))
4682 sv_upgrade(sv, SVt_PVIV);
4684 (void)SvPOK_only(sv); /* validate pointer */
4687 SvGROW(sv, SvCUR(sv) + (bufend - s) + 1);
4688 to = SvPVX(sv)+SvCUR(sv);
4689 if (multi_open == multi_close) {
4690 for (; s < bufend; s++,to++) {
4691 if (*s == '\n' && !rsfp)
4693 if (*s == '\\' && s+1 < bufend && term != '\\') {
4699 else if (*s == term)
4705 for (; s < bufend; s++,to++) {
4706 if (*s == '\n' && !rsfp)
4708 if (*s == '\\' && s+1 < bufend && term != '\\') {
4714 else if (*s == term && --brackets <= 0)
4716 else if (*s == multi_open)
4722 SvCUR_set(sv, to - SvPVX(sv));
4724 if (s < bufend) break; /* string ends on this line? */
4727 !(oldoldbufptr = oldbufptr = s = filter_gets(linestr, rsfp))) {
4729 curcop->cop_line = multi_start;
4733 if (perldb && curstash != debstash) {
4734 SV *sv = NEWSV(88,0);
4736 sv_upgrade(sv, SVt_PVMG);
4737 sv_setsv(sv,linestr);
4738 av_store(GvAV(curcop->cop_filegv),
4739 (I32)curcop->cop_line, sv);
4741 bufend = SvPVX(linestr) + SvCUR(linestr);
4743 multi_end = curcop->cop_line;
4745 if (SvCUR(sv) + 5 < SvLEN(sv)) {
4746 SvLEN_set(sv, SvCUR(sv) + 1);
4747 Renew(SvPVX(sv), SvLEN(sv), char);
4760 register char *s = start;
4770 croak("panic: scan_num");
4780 else if (s[1] == '.')
4794 yyerror("Illegal octal digit");
4796 case '0': case '1': case '2': case '3': case '4':
4797 case '5': case '6': case '7':
4801 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
4802 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
4806 i += (*s++ & 7) + 9;
4813 if (tryi32 == i && tryi32 >= 0)
4814 sv_setiv(sv,tryi32);
4816 sv_setnv(sv,(double)i);
4819 case '1': case '2': case '3': case '4': case '5':
4820 case '6': case '7': case '8': case '9': case '.':
4824 while (isDIGIT(*s) || *s == '_') {
4826 if (dowarn && lastub && s - lastub != 3)
4827 warn("Misplaced _ in number");
4833 if (dowarn && lastub && s - lastub != 3)
4834 warn("Misplaced _ in number");
4835 if (*s == '.' && s[1] != '.') {
4838 while (isDIGIT(*s) || *s == '_') {
4845 if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) {
4848 *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */
4849 if (*s == '+' || *s == '-')
4856 value = atof(tokenbuf);
4857 tryi32 = I_32(value);
4858 if (!floatit && (double)tryi32 == value)
4859 sv_setiv(sv,tryi32);
4865 yylval.opval = newSVOP(OP_CONST, 0, sv);
4876 SV *stuff = newSVpv("",0);
4877 bool needargs = FALSE;
4880 if (*s == '.' || *s == '}') {
4882 for (t = s+1; *t == ' ' || *t == '\t'; t++) ;
4886 if (in_eval && !rsfp) {
4887 eol = strchr(s,'\n');
4892 eol = bufend = SvPVX(linestr) + SvCUR(linestr);
4894 for (t = s; t < eol; t++) {
4895 if (*t == '~' && t[1] == '~' && SvCUR(stuff)) {
4897 goto enough; /* ~~ must be first line in formline */
4899 if (*t == '@' || *t == '^')
4902 sv_catpvn(stuff, s, eol-s);
4906 s = filter_gets(linestr, rsfp);
4907 oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr);
4908 bufend = bufptr + SvCUR(linestr);
4911 yyerror("Format not terminated");
4921 lex_state = LEX_NORMAL;
4922 nextval[nexttoke].ival = 0;
4926 lex_state = LEX_FORMLINE;
4927 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff);
4929 nextval[nexttoke].ival = OP_FORMLINE;
4933 SvREFCNT_dec(stuff);
4945 cshlen = strlen(cshname);
4952 int oldsavestack_ix = savestack_ix;
4953 CV* outsidecv = compcv;
4958 assert(SvTYPE(compcv) == SVt_PVCV);
4966 SAVESPTR(comppad_name);
4968 SAVEINT(comppad_name_fill);
4969 SAVEINT(min_intro_pending);
4970 SAVEINT(max_intro_pending);
4971 SAVEINT(pad_reset_pending);
4973 compcv = (CV*)NEWSV(1104,0);
4974 sv_upgrade((SV *)compcv, SVt_PVCV);
4977 comppad_name = newAV();
4978 comppad_name_fill = 0;
4979 min_intro_pending = 0;
4980 av_push(comppad, Nullsv);
4981 curpad = AvARRAY(comppad);
4983 subline = curcop->cop_line;
4985 comppadlist = newAV();
4986 AvREAL_off(comppadlist);
4987 av_store(comppadlist, 0, (SV*)comppad_name);
4988 av_store(comppadlist, 1, (SV*)comppad);
4990 CvPADLIST(compcv) = comppadlist;
4991 CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc((SV*)outsidecv);
4993 return oldsavestack_ix;
5012 char *tname = tmpbuf;
5014 if (bufptr > oldoldbufptr && bufptr - oldoldbufptr < 200 &&
5015 oldoldbufptr != oldbufptr && oldbufptr != bufptr) {
5016 while (isSPACE(*oldoldbufptr))
5018 sprintf(tname,"near \"%.*s\"",bufptr - oldoldbufptr, oldoldbufptr);
5020 else if (bufptr > oldbufptr && bufptr - oldbufptr < 200 &&
5021 oldbufptr != bufptr) {
5022 while (isSPACE(*oldbufptr))
5024 sprintf(tname,"near \"%.*s\"",bufptr - oldbufptr, oldbufptr);
5026 else if (yychar > 255)
5027 tname = "next token ???";
5028 else if (!yychar || (yychar == ';' && !rsfp))
5029 (void)strcpy(tname,"at EOF");
5030 else if ((yychar & 127) == 127) {
5031 if (lex_state == LEX_NORMAL ||
5032 (lex_state == LEX_KNOWNEXT && lex_defer == LEX_NORMAL))
5033 (void)strcpy(tname,"at end of line");
5035 (void)strcpy(tname,"within pattern");
5037 (void)strcpy(tname,"within string");
5039 else if (yychar < 32)
5040 (void)sprintf(tname,"next char ^%c",yychar+64);
5042 (void)sprintf(tname,"next char %c",yychar);
5043 (void)sprintf(buf, "%s at %s line %d, %s\n",
5044 s,SvPVX(GvSV(curcop->cop_filegv)),curcop->cop_line,tname);
5045 if (curcop->cop_line == multi_end && multi_start < multi_end) {
5046 sprintf(buf+strlen(buf),
5047 " (Might be a runaway multi-line %c%c string starting on line %ld)\n",
5048 multi_open,multi_close,(long)multi_start);
5054 sv_catpv(GvSV(errgv),buf);
5056 PerlIO_printf(PerlIO_stderr(), "%s",buf);
5057 if (++error_count >= 10)
5058 croak("%s has too many errors.\n",
5059 SvPVX(GvSV(curcop->cop_filegv)));