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, FILE *fp));
48 static void restore_rsfp _((void *f));
49 static SV * sub_const _((CV *cv));
51 /* The following are arranged oddly so that the guard on the switch statement
52 * can get by with a single comparison (if the compiler is smart enough).
56 #define LEX_INTERPNORMAL 8
57 #define LEX_INTERPCASEMOD 7
58 #define LEX_INTERPSTART 6
59 #define LEX_INTERPEND 5
60 #define LEX_INTERPENDMAYBE 4
61 #define LEX_INTERPCONCAT 3
62 #define LEX_INTERPCONST 2
63 #define LEX_FORMLINE 1
64 #define LEX_KNOWNEXT 0
82 #define CLINE (copline = (curcop->cop_line < copline ? curcop->cop_line : copline))
84 #define TOKEN(retval) return (bufptr = s,(int)retval)
85 #define OPERATOR(retval) return (expect = XTERM,bufptr = s,(int)retval)
86 #define AOPERATOR(retval) return ao((expect = XTERM,bufptr = s,(int)retval))
87 #define PREBLOCK(retval) return (expect = XBLOCK,bufptr = s,(int)retval)
88 #define PRETERMBLOCK(retval) return (expect = XTERMBLOCK,bufptr = s,(int)retval)
89 #define PREREF(retval) return (expect = XREF,bufptr = s,(int)retval)
90 #define TERM(retval) return (CLINE, expect = XOPERATOR,bufptr = s,(int)retval)
91 #define LOOPX(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LOOPEX)
92 #define FTST(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)UNIOP)
93 #define FUN0(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC0)
94 #define FUN1(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC1)
95 #define BOop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITOROP))
96 #define BAop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITANDOP))
97 #define SHop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)SHIFTOP))
98 #define PWop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)POWOP))
99 #define PMop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MATCHOP)
100 #define Aop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)ADDOP))
101 #define Mop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)MULOP))
102 #define Eop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)EQOP)
103 #define Rop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)RELOP)
105 /* This bit of chicanery makes a unary function followed by
106 * a parenthesis into a function with one argument, highest precedence.
108 #define UNI(f) return(yylval.ival = f, \
111 last_uni = oldbufptr, \
113 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
115 #define UNIBRACK(f) return(yylval.ival = f, \
117 last_uni = oldbufptr, \
118 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
120 /* grandfather return to old style */
121 #define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP)
127 if (*bufptr == '=') {
129 if (toketype == ANDAND)
130 yylval.ival = OP_ANDASSIGN;
131 else if (toketype == OROR)
132 yylval.ival = OP_ORASSIGN;
144 char *oldbp = bufptr;
145 bool is_first = (oldbufptr == SvPVX(linestr));
147 sprintf(tmpbuf, "%s found where operator expected", what);
150 warn("\t(Missing semicolon on previous line?)\n");
151 else if (oldoldbufptr && isIDFIRST(*oldoldbufptr)) {
153 for (t = oldoldbufptr; *t && (isALNUM(*t) || *t == ':'); t++) ;
154 if (t < bufptr && isSPACE(*t))
155 warn("\t(Do you need to predeclare %.*s?)\n",
156 t - oldoldbufptr, oldoldbufptr);
160 warn("\t(Missing operator before %.*s?)\n", s - oldbp, oldbp);
171 char *nl = strrchr(s,'\n');
175 else if (multi_close < 32 || multi_close == 127) {
177 tmpbuf[1] = multi_close ^ 64;
183 *tmpbuf = multi_close;
187 q = strchr(s,'"') ? '\'' : '"';
188 croak("Can't find string terminator %c%s%c anywhere before EOF",q,s,q);
196 warn("Use of %s is deprecated", s);
202 deprecate("comma-less variable list");
213 SAVEINT(lex_brackets);
214 SAVEINT(lex_fakebrack);
215 SAVEINT(lex_casemods);
220 SAVEINT(curcop->cop_line);
224 SAVEPPTR(oldoldbufptr);
226 SAVEPPTR(lex_brackstack);
227 SAVEPPTR(lex_casestack);
228 SAVEDESTRUCTOR(restore_rsfp, rsfp);
230 lex_state = LEX_NORMAL;
235 New(899, lex_brackstack, 120, char);
236 New(899, lex_casestack, 12, char);
237 SAVEFREEPV(lex_brackstack);
238 SAVEFREEPV(lex_casestack);
240 *lex_casestack = '\0';
244 SvREFCNT_dec(lex_stuff);
247 SvREFCNT_dec(lex_repl);
252 if (SvREADONLY(linestr))
253 linestr = sv_2mortal(newSVsv(linestr));
254 s = SvPV(linestr, len);
255 if (len && s[len-1] != ';') {
256 if (!(SvFLAGS(linestr) & SVs_TEMP))
257 linestr = sv_2mortal(newSVsv(linestr));
258 sv_catpvn(linestr, "\n;", 2);
261 oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr);
262 bufend = bufptr + SvCUR(linestr);
264 rs = newSVpv("\n", 1);
281 else if (rsfp && (rsfp != fp))
298 while (*s == ' ' || *s == '\t') s++;
299 if (strnEQ(s, "line ", 5)) {
308 while (*s == ' ' || *s == '\t')
310 if (*s == '"' && (t = strchr(s+1, '"')))
314 return; /* false alarm */
315 for (t = s; !isSPACE(*t); t++) ;
320 curcop->cop_filegv = gv_fetchfile(s);
322 curcop->cop_filegv = gv_fetchfile(origfilename);
324 curcop->cop_line = atoi(n)-1;
331 if (lex_formbrack && lex_brackets <= lex_formbrack) {
332 while (s < bufend && (*s == ' ' || *s == '\t'))
337 while (s < bufend && isSPACE(*s))
339 if (s < bufend && *s == '#') {
340 while (s < bufend && *s != '\n')
345 if (s < bufend || !rsfp || lex_state != LEX_NORMAL)
347 if ((s = filter_gets(linestr, rsfp)) == Nullch) {
348 if (minus_n || minus_p) {
349 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
350 sv_catpv(linestr,";}");
351 minus_n = minus_p = 0;
354 sv_setpv(linestr,";");
355 oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr);
356 bufend = SvPVX(linestr) + SvCUR(linestr);
357 if (preprocess && !in_eval)
358 (void)my_pclose(rsfp);
359 else if ((FILE*)rsfp == stdin)
366 oldoldbufptr = oldbufptr = bufptr = s;
367 bufend = bufptr + SvCUR(linestr);
369 if (perldb && curstash != debstash) {
370 SV *sv = NEWSV(85,0);
372 sv_upgrade(sv, SVt_PVMG);
373 sv_setsv(sv,linestr);
374 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
385 if (oldoldbufptr != last_uni)
387 while (isSPACE(*last_uni))
389 for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ;
390 if ((t = strchr(s, '(')) && t < bufptr)
394 warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni);
401 #define UNI(f) return uni(f,s)
411 last_uni = oldbufptr;
422 #endif /* CRIPPLED_CC */
424 #define LOP(f,x) return lop(f,x,s)
436 last_lop = oldbufptr;
453 nexttype[nexttoke] = type;
455 if (lex_state != LEX_KNOWNEXT) {
456 lex_defer = lex_state;
458 lex_state = LEX_KNOWNEXT;
463 force_word(start,token,check_keyword,allow_pack,allow_tick)
464 register char *start;
473 start = skipspace(start);
476 (allow_pack && *s == ':') ||
477 (allow_tick && *s == '\'') )
479 s = scan_word(s, tokenbuf, allow_pack, &len);
480 if (check_keyword && keyword(tokenbuf, len))
482 if (token == METHOD) {
492 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(tokenbuf,0));
493 nextval[nexttoke].opval->op_private |= OPpCONST_BARE;
505 OP* op = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0));
506 nextval[nexttoke].opval = op;
509 op->op_private = OPpCONST_ENTERED;
511 kind == '$' ? SVt_PV :
512 kind == '@' ? SVt_PVAV :
513 kind == '%' ? SVt_PVHV :
524 OP *version = Nullop;
528 /* default VERSION number -- GBARR */
533 for( d=s, c = 1; isDIGIT(*d) || (*d == '.' && c--); d++);
534 if((*d == ';' || isSPACE(*d)) && *(skipspace(d)) != ',') {
536 /* real VERSION number -- GBARR */
537 version = yylval.opval;
541 /* NOTE: The parser sees the package name and the VERSION swapped */
542 nextval[nexttoke].opval = version;
560 s = SvPV_force(sv, len);
564 while (s < send && *s != '\\')
571 if (s + 1 < send && (s[1] == '\\'))
572 s++; /* all that, just for this */
577 SvCUR_set(sv, d - SvPVX(sv));
585 register I32 op_type = yylval.ival;
587 if (op_type == OP_NULL) {
588 yylval.opval = lex_op;
592 if (op_type == OP_CONST || op_type == OP_READLINE) {
593 yylval.opval = (OP*)newSVOP(op_type, 0, q(lex_stuff));
600 SAVEINT(lex_brackets);
601 SAVEINT(lex_fakebrack);
602 SAVEINT(lex_casemods);
607 SAVEINT(curcop->cop_line);
610 SAVEPPTR(oldoldbufptr);
612 SAVEPPTR(lex_brackstack);
613 SAVEPPTR(lex_casestack);
618 bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
619 bufend += SvCUR(linestr);
625 New(899, lex_brackstack, 120, char);
626 New(899, lex_casestack, 12, char);
627 SAVEFREEPV(lex_brackstack);
628 SAVEFREEPV(lex_casestack);
630 *lex_casestack = '\0';
632 lex_state = LEX_INTERPCONCAT;
633 curcop->cop_line = multi_start;
635 lex_inwhat = op_type;
636 if (op_type == OP_MATCH || op_type == OP_SUBST)
644 yylval.opval = lex_op;
657 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0));
661 if (lex_casemods) { /* oops, we've got some unbalanced parens */
662 lex_state = LEX_INTERPCASEMOD;
666 /* Is there a right-hand side to take care of? */
667 if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) {
670 bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
671 bufend += SvCUR(linestr);
677 *lex_casestack = '\0';
679 if (SvCOMPILED(lex_repl)) {
680 lex_state = LEX_INTERPNORMAL;
684 lex_state = LEX_INTERPCONCAT;
690 bufend = SvPVX(linestr);
691 bufend += SvCUR(linestr);
701 register char *send = bufend;
702 SV *sv = NEWSV(93, send - start);
703 register char *s = start;
704 register char *d = SvPVX(sv);
705 bool dorange = FALSE;
709 ? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]} \t\n\r\f\v#"
710 : (lex_inwhat & OP_TRANS)
714 while (s < send || dorange) {
715 if (lex_inwhat == OP_TRANS) {
720 SvGROW(sv, SvLEN(sv) + 256);
724 for (i = (U8)*d; i <= max; i++)
729 else if (*s == '-' && s+1 < send && s != start) {
734 else if (*s == '(' && lex_inpat && s[1] == '?' && s[2] == '#') {
735 while (s < send && *s != ')')
738 else if (*s == '#' && lex_inpat &&
739 ((PMOP*)lex_inpat)->op_pmflags & PMf_EXTENDED) {
740 while (s+1 < send && *s != '\n')
743 else if (*s == '@' && s[1] && (isALNUM(s[1]) || strchr(":'{$", s[1])))
745 else if (*s == '$') {
746 if (!lex_inpat) /* not a regexp, so $ must be var */
748 if (s + 1 < send && !strchr(")| \n\t", s[1]))
749 break; /* in regexp, $ might be tail anchor */
751 if (*s == '\\' && s+1 < send) {
753 if (*s && strchr(leave, *s)) {
758 if (lex_inwhat == OP_SUBST && !lex_inpat &&
759 isDIGIT(*s) && *s != '0' && !isDIGIT(s[1]))
762 warn("\\%c better written as $%c", *s, *s);
766 if (lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) {
772 if (lex_inwhat == OP_TRANS) {
780 case '0': case '1': case '2': case '3':
781 case '4': case '5': case '6': case '7':
782 *d++ = scan_oct(s, 3, &len);
786 *d++ = scan_hex(++s, 2, &len);
824 SvCUR_set(sv, d - SvPVX(sv));
827 if (SvCUR(sv) + 5 < SvLEN(sv)) {
828 SvLEN_set(sv, SvCUR(sv) + 1);
829 Renew(SvPVX(sv), SvLEN(sv), char);
832 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
838 /* This is the one truly awful dwimmer necessary to conflate C and sed. */
845 if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{'))
847 if (*s != '{' && *s != '[')
852 /* In a pattern, so maybe we have {n,m}. */
869 /* On the other hand, maybe we have a character class */
872 if (*s == ']' || *s == '^')
875 int weight = 2; /* let's weigh the evidence */
877 unsigned char un_char = 0, last_un_char;
878 char *send = strchr(s,']');
881 if (!send) /* has to be an expression */
887 else if (isDIGIT(*s)) {
889 if (isDIGIT(s[1]) && s[2] == ']')
895 for (; s < send; s++) {
896 last_un_char = un_char;
897 un_char = (unsigned char)*s;
902 weight -= seen[un_char] * 10;
904 scan_ident(s,send,tmpbuf,FALSE);
905 if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV))
910 else if (*s == '$' && s[1] &&
911 strchr("[#!%*<>()-=",s[1])) {
912 if (/*{*/ strchr("])} =",s[2]))
921 if (strchr("wds]",s[1]))
923 else if (seen['\''] || seen['"'])
925 else if (strchr("rnftbxcav",s[1]))
927 else if (isDIGIT(s[1])) {
929 while (s[1] && isDIGIT(s[1]))
939 if (strchr("aA01! ",last_un_char))
941 if (strchr("zZ79~",s[1]))
945 if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) &&
946 isALPHA(*s) && s[1] && isALPHA(s[1])) {
951 if (keyword(tmpbuf, d - tmpbuf))
954 if (un_char == last_un_char + 1)
956 weight -= seen[un_char];
961 if (weight >= 0) /* probably a character class */
969 intuit_method(start,gv)
973 char *s = start + (*start == '$');
984 s = scan_word(s, tmpbuf, TRUE, &len);
986 if (gv || last_lop_op == OP_PRINT || isUPPER(*tokenbuf))
991 return *s == '(' ? FUNCMETH : METHOD;
993 if (!keyword(tmpbuf, len)) {
994 indirgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVCV);
995 if (indirgv && GvCV(indirgv))
997 /* filehandle or package name makes it a method */
998 if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) {
1000 nextval[nexttoke].opval =
1001 (OP*)newSVOP(OP_CONST, 0,
1003 nextval[nexttoke].opval->op_private =
1008 return *s == '(' ? FUNCMETH : METHOD;
1018 char *pdb = getenv("PERL5DB");
1022 return "BEGIN { require 'perl5db.pl' }";
1028 /* Encoded script support. filter_add() effectively inserts a
1029 * 'pre-processing' function into the current source input stream.
1030 * Note that the filter function only applies to the current source file
1031 * (e.g., it will not affect files 'require'd or 'use'd by this one).
1033 * The datasv parameter (which may be NULL) can be used to pass
1034 * private data to this instance of the filter. The filter function
1035 * can recover the SV using the FILTER_DATA macro and use it to
1036 * store private buffers and state information.
1038 * The supplied datasv parameter is upgraded to a PVIO type
1039 * and the IoDIRP field is used to store the function pointer.
1040 * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for
1041 * private use must be set using malloc'd pointers.
1043 static int filter_debug = 0;
1046 filter_add(funcp, datasv)
1050 if (!funcp){ /* temporary handy debugging hack to be deleted */
1051 filter_debug = atoi((char*)datasv);
1055 rsfp_filters = newAV();
1058 if (!SvUPGRADE(datasv, SVt_PVIO))
1059 die("Can't upgrade filter_add data to SVt_PVIO");
1060 IoDIRP(datasv) = (DIR*)funcp; /* stash funcp into spare field */
1062 warn("filter_add func %lx (%s)", funcp, SvPV(datasv,na));
1063 av_unshift(rsfp_filters, 1);
1064 av_store(rsfp_filters, 0, datasv) ;
1069 /* Delete most recently added instance of this filter function. */
1075 warn("filter_del func %lx", funcp);
1076 if (!rsfp_filters || AvFILL(rsfp_filters)<0)
1078 /* if filter is on top of stack (usual case) just pop it off */
1079 if (IoDIRP(FILTER_DATA(0)) == (void*)funcp){
1080 /* sv_free(av_pop(rsfp_filters)); */
1081 sv_free(av_shift(rsfp_filters));
1085 /* we need to search for the correct entry and clear it */
1086 die("filter_del can only delete in reverse order (currently)");
1090 /* Invoke the n'th filter function for the current rsfp. */
1092 filter_read(idx, buf_sv, maxlen)
1095 int maxlen; /* 0 = read one text line */
1102 if (idx > AvFILL(rsfp_filters)){ /* Any more filters? */
1103 /* Provide a default input filter to make life easy. */
1104 /* Note that we append to the line. This is handy. */
1106 warn("filter_read %d: from rsfp\n", idx);
1110 int old_len = SvCUR(buf_sv) ;
1112 /* ensure buf_sv is large enough */
1113 SvGROW(buf_sv, old_len + maxlen) ;
1114 if ((len = fread(SvPVX(buf_sv) + old_len, 1, maxlen, rsfp)) <= 0){
1116 return -1; /* error */
1118 return 0 ; /* end of file */
1120 SvCUR_set(buf_sv, old_len + len) ;
1123 if (sv_gets(buf_sv, rsfp, SvCUR(buf_sv)) == NULL) {
1125 return -1; /* error */
1127 return 0 ; /* end of file */
1130 return SvCUR(buf_sv);
1132 /* Skip this filter slot if filter has been deleted */
1133 if ( (datasv = FILTER_DATA(idx)) == &sv_undef){
1135 warn("filter_read %d: skipped (filter deleted)\n", idx);
1136 return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */
1138 /* Get function pointer hidden within datasv */
1139 funcp = (filter_t)IoDIRP(datasv);
1141 warn("filter_read %d: via function %lx (%s)\n",
1142 idx, funcp, SvPV(datasv,na));
1143 /* Call function. The function is expected to */
1144 /* call "FILTER_READ(idx+1, buf_sv)" first. */
1145 /* Return: <0:error, =0:eof, >0:not eof */
1146 return (*funcp)(idx, buf_sv, maxlen);
1156 SvCUR_set(sv, 0); /* start with empty line */
1157 if (FILTER_READ(0, sv, 0) > 0)
1158 return ( SvPVX(sv) ) ;
1163 return (sv_gets(sv, fp, 0)) ;
1169 static char* exp_name[] =
1170 { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "TERMBLOCK" };
1173 extern int yychar; /* last token */
1183 switch (lex_state) {
1185 case LEX_NORMAL: /* Some compilers will produce faster */
1186 case LEX_INTERPNORMAL: /* code if we comment these out. */
1192 yylval = nextval[nexttoke];
1194 lex_state = lex_defer;
1195 expect = lex_expect;
1196 lex_defer = LEX_NORMAL;
1198 return(nexttype[nexttoke]);
1200 case LEX_INTERPCASEMOD:
1202 if (bufptr != bufend && *bufptr != '\\')
1203 croak("panic: INTERPCASEMOD");
1205 if (bufptr == bufend || bufptr[1] == 'E') {
1208 oldmod = lex_casestack[--lex_casemods];
1209 lex_casestack[lex_casemods] = '\0';
1210 if (bufptr != bufend && strchr("LUQ", oldmod)) {
1212 lex_state = LEX_INTERPCONCAT;
1216 if (bufptr != bufend)
1218 lex_state = LEX_INTERPCONCAT;
1223 if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3))
1224 tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */
1225 if (strchr("LU", *s) &&
1226 (strchr(lex_casestack, 'L') || strchr(lex_casestack, 'U')))
1228 lex_casestack[--lex_casemods] = '\0';
1231 if (lex_casemods > 10) {
1232 char* newlb = Renew(lex_casestack, lex_casemods + 2, char);
1233 if (newlb != lex_casestack) {
1235 lex_casestack = newlb;
1238 lex_casestack[lex_casemods++] = *s;
1239 lex_casestack[lex_casemods] = '\0';
1240 lex_state = LEX_INTERPCONCAT;
1241 nextval[nexttoke].ival = 0;
1244 nextval[nexttoke].ival = OP_LCFIRST;
1246 nextval[nexttoke].ival = OP_UCFIRST;
1248 nextval[nexttoke].ival = OP_LC;
1250 nextval[nexttoke].ival = OP_UC;
1252 nextval[nexttoke].ival = OP_QUOTEMETA;
1254 croak("panic: yylex");
1266 case LEX_INTERPSTART:
1267 if (bufptr == bufend)
1268 return sublex_done();
1270 lex_dojoin = (*bufptr == '@');
1271 lex_state = LEX_INTERPNORMAL;
1273 nextval[nexttoke].ival = 0;
1275 force_ident("\"", '$');
1276 nextval[nexttoke].ival = 0;
1278 nextval[nexttoke].ival = 0;
1280 nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */
1291 case LEX_INTERPENDMAYBE:
1292 if (intuit_more(bufptr)) {
1293 lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */
1301 lex_state = LEX_INTERPCONCAT;
1305 case LEX_INTERPCONCAT:
1308 croak("panic: INTERPCONCAT");
1310 if (bufptr == bufend)
1311 return sublex_done();
1313 if (SvIVX(linestr) == '\'') {
1314 SV *sv = newSVsv(linestr);
1317 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
1321 s = scan_const(bufptr);
1323 lex_state = LEX_INTERPCASEMOD;
1325 lex_state = LEX_INTERPSTART;
1329 nextval[nexttoke] = yylval;
1342 lex_state = LEX_NORMAL;
1343 s = scan_formline(bufptr);
1350 oldoldbufptr = oldbufptr;
1353 fprintf(stderr,"### Tokener expecting %s at %s\n", exp_name[expect], s);
1359 warn("Unrecognized character \\%03o ignored", *s++ & 255);
1363 goto fake_eof; /* emulate EOF on ^D or ^Z */
1367 yyerror("Missing right bracket");
1371 goto retry; /* ignore stray nulls */
1374 if (!in_eval && !preambled) {
1376 sv_setpv(linestr,incl_perldb());
1378 sv_catpv(linestr,";");
1380 while(AvFILL(preambleav) >= 0) {
1381 SV *tmpsv = av_shift(preambleav);
1382 sv_catsv(linestr, tmpsv);
1383 sv_catpv(linestr, ";");
1386 sv_free((SV*)preambleav);
1389 if (minus_n || minus_p) {
1390 sv_catpv(linestr, "LINE: while (<>) {");
1392 sv_catpv(linestr,"chomp;");
1396 if ( splitstr[0] == '/' ||
1397 splitstr[0] == '\'' ||
1398 splitstr[0] == '"' )
1399 sprintf( tmpbuf1, "@F=split(%s);", splitstr );
1401 sprintf( tmpbuf1, "@F=split('%s');", splitstr );
1402 sv_catpv(linestr,tmpbuf1);
1405 sv_catpv(linestr,"@F=split(' ');");
1408 sv_catpv(linestr, "\n");
1409 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1410 bufend = SvPVX(linestr) + SvCUR(linestr);
1411 if (perldb && curstash != debstash) {
1412 SV *sv = NEWSV(85,0);
1414 sv_upgrade(sv, SVt_PVMG);
1415 sv_setsv(sv,linestr);
1416 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1421 if ((s = filter_gets(linestr, rsfp)) == Nullch) {
1424 if (preprocess && !in_eval)
1425 (void)my_pclose(rsfp);
1426 else if ((FILE*)rsfp == stdin)
1432 if (!in_eval && (minus_n || minus_p)) {
1433 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
1434 sv_catpv(linestr,";}");
1435 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1436 bufend = SvPVX(linestr) + SvCUR(linestr);
1437 minus_n = minus_p = 0;
1440 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1441 sv_setpv(linestr,"");
1442 TOKEN(';'); /* not infinite loop because rsfp is NULL now */
1445 if (*s == '#' && s[1] == '!' && instr(s,"perl"))
1448 /* Incest with pod. */
1449 if (*s == '=' && strnEQ(s, "=cut", 4)) {
1450 sv_setpv(linestr, "");
1451 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1452 bufend = SvPVX(linestr) + SvCUR(linestr);
1457 } while (doextract);
1458 oldoldbufptr = oldbufptr = bufptr = s;
1459 if (perldb && curstash != debstash) {
1460 SV *sv = NEWSV(85,0);
1462 sv_upgrade(sv, SVt_PVMG);
1463 sv_setsv(sv,linestr);
1464 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1466 bufend = SvPVX(linestr) + SvCUR(linestr);
1467 if (curcop->cop_line == 1) {
1468 while (s < bufend && isSPACE(*s))
1470 if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */
1472 if (!in_eval && *s == '#' && s[1] == '!') {
1473 d = instr(s,"perl -");
1475 d = instr(s,"perl");
1478 !instr(s,"indir") &&
1479 instr(origargv[0],"perl"))
1488 while (s < bufend && !isSPACE(*s))
1491 while (s < bufend && isSPACE(*s))
1494 Newz(899,newargv,origargc+3,char*);
1496 while (s < bufend && !isSPACE(*s))
1499 Copy(origargv+1, newargv+2, origargc+1, char*);
1505 croak("Can't exec %s", cmd);
1508 int oldpdb = perldb;
1512 while (*d && !isSPACE(*d)) d++;
1513 while (*d == ' ' || *d == '\t') d++;
1516 while (d = moreswitches(d)) ;
1517 if (perldb && !oldpdb ||
1518 ( minus_n || minus_p ) && !(oldn || oldp) )
1519 /* if we have already added "LINE: while (<>) {",
1520 we must not do it again */
1522 sv_setpv(linestr, "");
1523 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1524 bufend = SvPVX(linestr) + SvCUR(linestr);
1527 (void)gv_fetchfile(origfilename);
1534 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1536 lex_state = LEX_FORMLINE;
1540 case ' ': case '\t': case '\f': case '\r': case 013:
1545 if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) {
1547 while (s < d && *s != '\n')
1552 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1554 lex_state = LEX_FORMLINE;
1564 if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) {
1569 while (s < bufend && (*s == ' ' || *s == '\t'))
1572 if (strnEQ(s,"=>",2)) {
1574 warn("Ambiguous use of -%c => resolved to \"-%c\" =>",
1576 s = force_word(bufptr,WORD,FALSE,FALSE,FALSE);
1577 OPERATOR('-'); /* unary minus */
1579 last_uni = oldbufptr;
1580 last_lop_op = OP_FTEREAD; /* good enough */
1582 case 'r': FTST(OP_FTEREAD);
1583 case 'w': FTST(OP_FTEWRITE);
1584 case 'x': FTST(OP_FTEEXEC);
1585 case 'o': FTST(OP_FTEOWNED);
1586 case 'R': FTST(OP_FTRREAD);
1587 case 'W': FTST(OP_FTRWRITE);
1588 case 'X': FTST(OP_FTREXEC);
1589 case 'O': FTST(OP_FTROWNED);
1590 case 'e': FTST(OP_FTIS);
1591 case 'z': FTST(OP_FTZERO);
1592 case 's': FTST(OP_FTSIZE);
1593 case 'f': FTST(OP_FTFILE);
1594 case 'd': FTST(OP_FTDIR);
1595 case 'l': FTST(OP_FTLINK);
1596 case 'p': FTST(OP_FTPIPE);
1597 case 'S': FTST(OP_FTSOCK);
1598 case 'u': FTST(OP_FTSUID);
1599 case 'g': FTST(OP_FTSGID);
1600 case 'k': FTST(OP_FTSVTX);
1601 case 'b': FTST(OP_FTBLK);
1602 case 'c': FTST(OP_FTCHR);
1603 case 't': FTST(OP_FTTTY);
1604 case 'T': FTST(OP_FTTEXT);
1605 case 'B': FTST(OP_FTBINARY);
1606 case 'M': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTMTIME);
1607 case 'A': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTATIME);
1608 case 'C': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTCTIME);
1610 croak("Unrecognized file test: -%c", tmp);
1617 if (expect == XOPERATOR)
1622 else if (*s == '>') {
1625 if (isIDFIRST(*s)) {
1626 s = force_word(s,METHOD,FALSE,TRUE,FALSE);
1634 if (expect == XOPERATOR)
1637 if (isSPACE(*s) || !isSPACE(*bufptr))
1639 OPERATOR('-'); /* unary minus */
1646 if (expect == XOPERATOR)
1651 if (expect == XOPERATOR)
1654 if (isSPACE(*s) || !isSPACE(*bufptr))
1660 if (expect != XOPERATOR) {
1661 s = scan_ident(s, bufend, tokenbuf, TRUE);
1663 force_ident(tokenbuf, '*');
1676 if (expect != XOPERATOR) {
1677 s = scan_ident(s, bufend, tokenbuf + 1, TRUE);
1682 if (strchr(tokenbuf,':'))
1683 croak(no_myglob,tokenbuf);
1684 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1685 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
1686 force_next(PRIVATEREF);
1689 if (!strchr(tokenbuf,':')) {
1690 if (tmp = pad_findmy(tokenbuf)) {
1691 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1692 nextval[nexttoke].opval->op_targ = tmp;
1693 force_next(PRIVATEREF);
1697 force_ident(tokenbuf + 1, *tokenbuf);
1725 if (last_lop == oldoldbufptr || last_uni == oldoldbufptr)
1726 oldbufptr = oldoldbufptr; /* allow print(STDOUT 123) */
1731 if (curcop->cop_line < copline)
1732 copline = curcop->cop_line;
1743 if (lex_brackets <= 0)
1744 yyerror("Unmatched right bracket");
1747 if (lex_state == LEX_INTERPNORMAL) {
1748 if (lex_brackets == 0) {
1749 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
1750 lex_state = LEX_INTERPEND;
1757 if (lex_brackets > 100) {
1758 char* newlb = Renew(lex_brackstack, lex_brackets + 1, char);
1759 if (newlb != lex_brackstack) {
1761 lex_brackstack = newlb;
1766 if (lex_formbrack) {
1770 if (oldoldbufptr == last_lop)
1771 lex_brackstack[lex_brackets++] = XTERM;
1773 lex_brackstack[lex_brackets++] = XOPERATOR;
1774 OPERATOR(HASHBRACK);
1777 while (s < bufend && (*s == ' ' || *s == '\t'))
1779 if (s < bufend && (isALPHA(*s) || *s == '_')) {
1780 d = scan_word(s, tokenbuf, FALSE, &len);
1781 while (d < bufend && (*d == ' ' || *d == '\t'))
1785 (keyword(tokenbuf, len) ||
1786 perl_get_cv(tokenbuf, FALSE) ))
1787 warn("Ambiguous use of {%s} resolved to {\"%s\"}",
1788 tokenbuf, tokenbuf);
1789 s = force_word(s,WORD,FALSE,TRUE,FALSE);
1794 lex_brackstack[lex_brackets++] = XSTATE;
1798 lex_brackstack[lex_brackets++] = XOPERATOR;
1803 if (oldoldbufptr == last_lop)
1804 lex_brackstack[lex_brackets++] = XTERM;
1806 lex_brackstack[lex_brackets++] = XOPERATOR;
1809 OPERATOR(HASHBRACK);
1811 for (t = s; t < bufend && isALNUM(*t); t++) ;
1813 else if (*s == '\'' || *s == '"') {
1820 while (t < bufend && isSPACE(*t))
1822 if ((*t == ',' && !isLOWER(*s)) || (*t == '=' && t[1] == '>'))
1823 OPERATOR(HASHBRACK);
1827 lex_brackstack[lex_brackets-1] = XSTATE;
1833 yylval.ival = curcop->cop_line;
1834 if (isSPACE(*s) || *s == '#')
1835 copline = NOLINE; /* invalidate current command line number */
1840 if (lex_brackets <= 0)
1841 yyerror("Unmatched right bracket");
1843 expect = (expectation)lex_brackstack[--lex_brackets];
1844 if (lex_brackets < lex_formbrack)
1846 if (lex_state == LEX_INTERPNORMAL) {
1847 if (lex_brackets == 0) {
1848 if (lex_fakebrack) {
1849 lex_state = LEX_INTERPEND;
1851 return yylex(); /* ignore fake brackets */
1853 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
1854 lex_state = LEX_INTERPEND;
1857 if (lex_brackets < lex_fakebrack) {
1860 return yylex(); /* ignore fake brackets */
1870 if (expect == XOPERATOR) {
1871 if (dowarn && isALPHA(*s) && bufptr == SvPVX(linestr)) {
1879 s = scan_ident(s-1, bufend, tokenbuf, TRUE);
1882 force_ident(tokenbuf, '&');
1886 yylval.ival = (OPpENTERSUB_AMPER<<8);
1905 if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp))
1906 warn("Reversed %c= operator",tmp);
1908 if (expect == XSTATE && isALPHA(tmp) &&
1909 (s == SvPVX(linestr)+1 || s[-2] == '\n') )
1911 if (in_eval && !rsfp) {
1916 if (strnEQ(s,"=cut",4)) {
1933 if (lex_brackets < lex_formbrack) {
1935 for (t = s; *t == ' ' || *t == '\t'; t++) ;
1936 if (*t == '\n' || *t == '#') {
1954 if (expect != XOPERATOR) {
1955 if (s[1] != '<' && !strchr(s,'>'))
1958 s = scan_heredoc(s);
1960 s = scan_inputsymbol(s);
1961 TERM(sublex_start());
1966 SHop(OP_LEFT_SHIFT);
1980 SHop(OP_RIGHT_SHIFT);
1987 if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) {
1988 s = scan_ident(s+1, bufend, tokenbuf+1, FALSE);
1989 if (expect == XOPERATOR) {
1990 if (lex_formbrack && lex_brackets == lex_formbrack) {
1993 return ','; /* grandfather non-comma-format format */
1996 no_op("Array length",s);
1998 else if (!tokenbuf[1])
2000 if (!strchr(tokenbuf+1,':')) {
2002 if (tmp = pad_findmy(tokenbuf)) {
2003 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2004 nextval[nexttoke].opval->op_targ = tmp;
2006 force_next(PRIVATEREF);
2011 force_ident(tokenbuf+1, *tokenbuf);
2014 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
2015 if (expect == XOPERATOR) {
2016 if (lex_formbrack && lex_brackets == lex_formbrack) {
2019 return ','; /* grandfather non-comma-format format */
2025 expectation oldexpect = expect;
2027 /* This kludge not intended to be bulletproof. */
2028 if (tokenbuf[1] == '[' && !tokenbuf[2]) {
2029 yylval.opval = newSVOP(OP_CONST, 0,
2030 newSViv((IV)compiling.cop_arybase));
2031 yylval.opval->op_private = OPpCONST_ARYBASE;
2037 if (*s == '[' && oldexpect != XREF) {
2038 for (t = s+1; isSPACE(*t) || isALNUM(*t) || *t == '$'; t++) ;
2040 bufptr = skipspace(bufptr);
2041 while (t < bufend && *t != ']') t++;
2042 warn("Multidimensional syntax %.*s not supported",
2043 t-bufptr+1, bufptr);
2046 if (*s == '{' && strEQ(tokenbuf, "$SIG") &&
2047 (t = strchr(s,'}')) && (t = strchr(t,'='))) {
2050 for (t++; isSPACE(*t); t++) ;
2051 if (isIDFIRST(*t)) {
2052 t = scan_word(t, tmpbuf, TRUE, &len);
2053 if (*t != '(' && perl_get_cv(tmpbuf, FALSE))
2054 warn("You need to quote \"%s\"", tmpbuf);
2059 if (lex_state == LEX_NORMAL && isSPACE(*s)) {
2060 bool islop = (last_lop == oldoldbufptr);
2062 if (!islop || last_lop_op == OP_GREPSTART)
2064 else if (strchr("$@\"'`q", *s))
2065 expect = XTERM; /* e.g. print $fh "foo" */
2066 else if (strchr("&*<%", *s) && isIDFIRST(s[1]))
2067 expect = XTERM; /* e.g. print $fh &sub */
2068 else if (isDIGIT(*s))
2069 expect = XTERM; /* e.g. print $fh 3 */
2070 else if (*s == '.' && isDIGIT(s[1]))
2071 expect = XTERM; /* e.g. print $fh .3 */
2072 else if (strchr("/?-+", *s) && !isSPACE(s[1]))
2073 expect = XTERM; /* e.g. print $fh -1 */
2074 else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]))
2075 expect = XTERM; /* print $fh <<"EOF" */
2078 if (strchr(tokenbuf,':'))
2079 croak(no_myglob,tokenbuf);
2080 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2081 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
2082 force_next(PRIVATEREF);
2084 else if (!strchr(tokenbuf,':')) {
2085 if (oldexpect != XREF || oldoldbufptr == last_lop) {
2086 if (intuit_more(s)) {
2093 if (tmp = pad_findmy(tokenbuf)) {
2094 if (!tokenbuf[2] && *tokenbuf =='$' &&
2095 tokenbuf[1] <= 'b' && tokenbuf[1] >= 'a')
2097 for (d = in_eval ? oldoldbufptr : SvPVX(linestr);
2098 d < bufend && *d != '\n';
2101 if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) {
2102 croak("Can't use \"my %s\" in sort comparison",
2107 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2108 nextval[nexttoke].opval->op_targ = tmp;
2109 force_next(PRIVATEREF);
2112 force_ident(tokenbuf+1, *tokenbuf);
2115 force_ident(tokenbuf+1, *tokenbuf);
2119 yyerror("Final $ should be \\$ or $name");
2125 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
2126 if (expect == XOPERATOR)
2134 if (strchr(tokenbuf,':'))
2135 croak(no_myglob,tokenbuf);
2136 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2137 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
2138 force_next(PRIVATEREF);
2141 else if (!strchr(tokenbuf,':')) {
2142 if (intuit_more(s)) {
2146 if (tmp = pad_findmy(tokenbuf)) {
2147 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2148 nextval[nexttoke].opval->op_targ = tmp;
2149 force_next(PRIVATEREF);
2154 /* Force them to make up their mind on "@foo". */
2155 if (lex_state != LEX_NORMAL && !lex_brackets &&
2156 ( !(gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV)) ||
2162 sprintf(tmpbuf, "Literal @%s now requires backslash",tokenbuf+1);
2166 /* Warn about @ where they meant $. */
2168 if (*s == '[' || *s == '{') {
2170 while (*t && (isALNUM(*t) || strchr(" \t$#+-'\"", *t)))
2172 if (*t == '}' || *t == ']') {
2174 bufptr = skipspace(bufptr);
2175 warn("Scalar value %.*s better written as $%.*s",
2176 t-bufptr, bufptr, t-bufptr-1, bufptr+1);
2180 force_ident(tokenbuf+1, *tokenbuf);
2184 yyerror("Final @ should be \\@ or @name");
2189 case '/': /* may either be division or pattern */
2190 case '?': /* may either be conditional or pattern */
2191 if (expect != XOPERATOR) {
2194 TERM(sublex_start());
2202 if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' &&
2203 (s == SvPVX(linestr) || s[-1] == '\n') ) {
2208 if (expect == XOPERATOR || !isDIGIT(s[1])) {
2214 yylval.ival = OPf_SPECIAL;
2220 if (expect != XOPERATOR)
2225 case '0': case '1': case '2': case '3': case '4':
2226 case '5': case '6': case '7': case '8': case '9':
2228 if (expect == XOPERATOR)
2234 if (expect == XOPERATOR) {
2235 if (lex_formbrack && lex_brackets == lex_formbrack) {
2238 return ','; /* grandfather non-comma-format format */
2244 missingterm((char*)0);
2245 yylval.ival = OP_CONST;
2246 TERM(sublex_start());
2250 if (expect == XOPERATOR) {
2251 if (lex_formbrack && lex_brackets == lex_formbrack) {
2254 return ','; /* grandfather non-comma-format format */
2260 missingterm((char*)0);
2261 yylval.ival = OP_CONST;
2262 for (d = SvPV(lex_stuff, len); len; len--, d++) {
2263 if (*d == '$' || *d == '@' || *d == '\\') {
2264 yylval.ival = OP_STRINGIFY;
2268 TERM(sublex_start());
2272 if (expect == XOPERATOR)
2273 no_op("Backticks",s);
2275 missingterm((char*)0);
2276 yylval.ival = OP_BACKTICK;
2278 TERM(sublex_start());
2282 if (dowarn && lex_inwhat && isDIGIT(*s))
2283 warn("Can't use \\%c to mean $%c in expression", *s, *s);
2284 if (expect == XOPERATOR)
2285 no_op("Backslash",s);
2289 if (isDIGIT(s[1]) && expect == XOPERATOR) {
2325 s = scan_word(s, tokenbuf, FALSE, &len);
2327 if (*s == ':' && s[1] == ':' && strNE(tokenbuf, "CORE"))
2330 tmp = keyword(tokenbuf, len);
2332 /* Is this a word before a => operator? */
2334 while (d < bufend && (*d == ' ' || *d == '\t'))
2335 d++; /* no comments skipped here, or s### is misparsed */
2336 if (strnEQ(d,"=>",2)) {
2338 if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE)))
2339 warn("Ambiguous use of %s => resolved to \"%s\" =>",
2340 tokenbuf, tokenbuf);
2341 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2342 yylval.opval->op_private = OPpCONST_BARE;
2346 if (tmp < 0) { /* second-class keyword? */
2348 if (expect != XOPERATOR &&
2349 (*s != ':' || s[1] != ':') &&
2350 (gv = gv_fetchpv(tokenbuf, FALSE, SVt_PVCV)) &&
2362 default: /* not a keyword */
2365 char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]);
2367 /* Get the rest if it looks like a package qualifier */
2369 if (*s == '\'' || *s == ':' && s[1] == ':') {
2370 s = scan_word(s, tokenbuf + len, TRUE, &len);
2372 croak("Bad name after %s::", tokenbuf);
2375 /* Do special processing at start of statement. */
2377 if (expect == XSTATE) {
2378 while (isSPACE(*s)) s++;
2379 if (*s == ':') { /* It's a label. */
2380 yylval.pval = savepv(tokenbuf);
2386 else if (expect == XOPERATOR) {
2387 if (bufptr == SvPVX(linestr)) {
2393 no_op("Bare word",s);
2396 /* Look for a subroutine with this name in current package. */
2398 gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV);
2400 /* Presume this is going to be a bareword of some sort. */
2403 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2404 yylval.opval->op_private = OPpCONST_BARE;
2406 /* See if it's the indirect object for a list operator. */
2409 oldoldbufptr < bufptr &&
2410 (oldoldbufptr == last_lop || oldoldbufptr == last_uni) &&
2411 /* NO SKIPSPACE BEFORE HERE! */
2413 (opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) )
2415 bool immediate_paren = *s == '(';
2417 /* (Now we can afford to cross potential line boundary.) */
2420 /* Two barewords in a row may indicate method call. */
2422 if ((isALPHA(*s) || *s == '$') && (tmp=intuit_method(s,gv)))
2425 /* If not a declared subroutine, it's an indirect object. */
2426 /* (But it's an indir obj regardless for sort.) */
2428 if ((last_lop_op == OP_SORT ||
2429 (!immediate_paren && (!gv || !GvCV(gv))) ) &&
2430 (last_lop_op != OP_MAPSTART && last_lop_op != OP_GREPSTART)){
2431 expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR;
2436 /* If followed by a paren, it's certainly a subroutine. */
2442 nextval[nexttoke].opval = yylval.opval;
2449 /* If followed by var or block, call it a method (unless sub) */
2451 if ((*s == '$' || *s == '{') && (!gv || !GvCV(gv))) {
2452 last_lop = oldbufptr;
2453 last_lop_op = OP_METHOD;
2457 /* If followed by a bareword, see if it looks like indir obj. */
2459 if ((isALPHA(*s) || *s == '$') && (tmp = intuit_method(s,gv)))
2462 /* Not a method, so call it a subroutine (if defined) */
2464 if (gv && GvCV(gv)) {
2467 nextval[nexttoke].opval = yylval.opval;
2473 if (lastchar == '-')
2474 warn("Ambiguous use of -%s resolved as -&%s()",
2475 tokenbuf, tokenbuf);
2476 last_lop = oldbufptr;
2477 last_lop_op = OP_ENTERSUB;
2478 /* Check for a constant sub */
2479 if (SvPOK(cv) && !SvCUR(cv)) {
2480 SV *sv = sub_const(cv);
2482 SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv);
2483 ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc(sv);
2484 yylval.opval->op_private = 0;
2489 /* Resolve to GV now. */
2490 op_free(yylval.opval);
2491 yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv));
2492 /* Is there a prototype? */
2495 char *proto = SvPV((SV*)cv, len);
2498 if (strEQ(proto, "$"))
2500 if (*proto == '&' && *s == '{') {
2501 sv_setpv(subname,"__ANON__");
2505 nextval[nexttoke].opval = yylval.opval;
2511 if (hints & HINT_STRICT_SUBS &&
2514 last_lop_op != OP_ACCEPT &&
2515 last_lop_op != OP_PIPE_OP &&
2516 last_lop_op != OP_SOCKPAIR)
2519 "Bareword \"%s\" not allowed while \"strict subs\" in use",
2524 /* Call it a bare word */
2528 if (lastchar != '-') {
2529 for (d = tokenbuf; *d && isLOWER(*d); d++) ;
2531 warn(warn_reserved, tokenbuf);
2534 if (lastchar && strchr("*%&", lastchar)) {
2535 warn("Operator or semicolon missing before %c%s",
2536 lastchar, tokenbuf);
2537 warn("Ambiguous use of %c resolved as operator %c",
2538 lastchar, lastchar);
2544 case KEY___FILE__: {
2545 if (tokenbuf[2] == 'L')
2546 (void)sprintf(tokenbuf,"%ld",(long)curcop->cop_line);
2548 strcpy(tokenbuf, SvPVX(GvSV(curcop->cop_filegv)));
2549 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2558 if (rsfp && (!in_eval || tokenbuf[2] == 'D')) {
2560 char *pname = "main";
2561 if (tokenbuf[2] == 'D')
2562 pname = HvNAME(curstash ? curstash : defstash);
2563 sprintf(dname,"%s::DATA", pname);
2564 gv = gv_fetchpv(dname,TRUE, SVt_PVIO);
2567 GvIOp(gv) = newIO();
2568 IoIFP(GvIOp(gv)) = rsfp;
2569 #if defined(HAS_FCNTL) && defined(F_SETFD)
2571 int fd = fileno(rsfp);
2572 fcntl(fd,F_SETFD,fd >= 3);
2576 IoTYPE(GvIOp(gv)) = '|';
2577 else if ((FILE*)rsfp == stdin)
2578 IoTYPE(GvIOp(gv)) = '-';
2580 IoTYPE(GvIOp(gv)) = '<';
2590 if (expect == XSTATE) {
2597 if (*s == ':' && s[1] == ':') {
2600 s = scan_word(s, tokenbuf, FALSE, &len);
2601 tmp = keyword(tokenbuf, len);
2615 LOP(OP_ACCEPT,XTERM);
2621 LOP(OP_ATAN2,XTERM);
2630 LOP(OP_BLESS,XTERM);
2639 (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */
2659 LOP(OP_CRYPT,XTERM);
2663 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
2664 if (*d != '0' && isDIGIT(*d))
2665 yywarn("chmod: mode argument is missing initial 0");
2667 LOP(OP_CHMOD,XTERM);
2670 LOP(OP_CHOWN,XTERM);
2673 LOP(OP_CONNECT,XTERM);
2689 s = force_word(s,WORD,FALSE,TRUE,FALSE);
2693 hints |= HINT_BLOCK_SCOPE;
2703 gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV);
2704 LOP(OP_DBMOPEN,XTERM);
2710 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2717 yylval.ival = curcop->cop_line;
2731 expect = (*s == '{') ? XTERMBLOCK : XTERM;
2732 UNIBRACK(OP_ENTEREVAL);
2747 case KEY_endhostent:
2753 case KEY_endservent:
2756 case KEY_endprotoent:
2767 yylval.ival = curcop->cop_line;
2768 while (s < bufend && isSPACE(*s))
2771 croak("Missing $ on loop variable");
2775 LOP(OP_FORMLINE,XTERM);
2781 LOP(OP_FCNTL,XTERM);
2787 LOP(OP_FLOCK,XTERM);
2796 LOP(OP_GREPSTART, *s == '(' ? XTERM : XREF);
2799 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2814 case KEY_getpriority:
2815 LOP(OP_GETPRIORITY,XTERM);
2817 case KEY_getprotobyname:
2820 case KEY_getprotobynumber:
2821 LOP(OP_GPBYNUMBER,XTERM);
2823 case KEY_getprotoent:
2835 case KEY_getpeername:
2836 UNI(OP_GETPEERNAME);
2838 case KEY_gethostbyname:
2841 case KEY_gethostbyaddr:
2842 LOP(OP_GHBYADDR,XTERM);
2844 case KEY_gethostent:
2847 case KEY_getnetbyname:
2850 case KEY_getnetbyaddr:
2851 LOP(OP_GNBYADDR,XTERM);
2856 case KEY_getservbyname:
2857 LOP(OP_GSBYNAME,XTERM);
2859 case KEY_getservbyport:
2860 LOP(OP_GSBYPORT,XTERM);
2862 case KEY_getservent:
2865 case KEY_getsockname:
2866 UNI(OP_GETSOCKNAME);
2868 case KEY_getsockopt:
2869 LOP(OP_GSOCKOPT,XTERM);
2891 yylval.ival = curcop->cop_line;
2895 LOP(OP_INDEX,XTERM);
2901 LOP(OP_IOCTL,XTERM);
2913 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2945 LOP(OP_LISTEN,XTERM);
2952 TERM(sublex_start());
2955 LOP(OP_MAPSTART,XREF);
2958 LOP(OP_MKDIR,XTERM);
2961 LOP(OP_MSGCTL,XTERM);
2964 LOP(OP_MSGGET,XTERM);
2967 LOP(OP_MSGRCV,XTERM);
2970 LOP(OP_MSGSND,XTERM);
2978 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2985 if (expect != XSTATE)
2986 yyerror("\"no\" not allowed in expression");
2987 s = force_word(s,WORD,FALSE,TRUE,FALSE);
2988 s = force_version(s);
2997 if (isIDFIRST(*s)) {
2999 for (d = s; isALNUM(*d); d++) ;
3001 if (strchr("|&*+-=!?:.", *t))
3002 warn("Precedence problem: open %.*s should be open(%.*s)",
3008 yylval.ival = OP_OR;
3018 LOP(OP_OPEN_DIR,XTERM);
3021 checkcomma(s,tokenbuf,"filehandle");
3025 checkcomma(s,tokenbuf,"filehandle");
3044 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3048 LOP(OP_PIPE_OP,XTERM);
3053 missingterm((char*)0);
3054 yylval.ival = OP_CONST;
3055 TERM(sublex_start());
3063 missingterm((char*)0);
3065 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff));
3069 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(" ",1));
3072 yylval.ival = OP_SPLIT;
3076 last_lop = oldbufptr;
3077 last_lop_op = OP_SPLIT;
3083 missingterm((char*)0);
3084 yylval.ival = OP_STRINGIFY;
3085 if (SvIVX(lex_stuff) == '\'')
3086 SvIVX(lex_stuff) = 0; /* qq'$foo' should intepolate */
3087 TERM(sublex_start());
3092 missingterm((char*)0);
3093 yylval.ival = OP_BACKTICK;
3095 TERM(sublex_start());
3102 s = force_word(s,WORD,TRUE,TRUE,FALSE);
3103 if (isIDFIRST(*tokenbuf))
3104 gv_stashpvn(tokenbuf, strlen(tokenbuf), TRUE);
3106 yyerror("<> should be quotes");
3113 s = force_word(s,WORD,TRUE,FALSE,FALSE);
3117 LOP(OP_RENAME,XTERM);
3126 LOP(OP_RINDEX,XTERM);
3149 LOP(OP_REVERSE,XTERM);
3160 TERM(sublex_start());
3162 TOKEN(1); /* force error */
3171 LOP(OP_SELECT,XTERM);
3177 LOP(OP_SEMCTL,XTERM);
3180 LOP(OP_SEMGET,XTERM);
3183 LOP(OP_SEMOP,XTERM);
3189 LOP(OP_SETPGRP,XTERM);
3191 case KEY_setpriority:
3192 LOP(OP_SETPRIORITY,XTERM);
3194 case KEY_sethostent:
3200 case KEY_setservent:
3203 case KEY_setprotoent:
3213 LOP(OP_SEEKDIR,XTERM);
3215 case KEY_setsockopt:
3216 LOP(OP_SSOCKOPT,XTERM);
3222 LOP(OP_SHMCTL,XTERM);
3225 LOP(OP_SHMGET,XTERM);
3228 LOP(OP_SHMREAD,XTERM);
3231 LOP(OP_SHMWRITE,XTERM);
3234 LOP(OP_SHUTDOWN,XTERM);
3243 LOP(OP_SOCKET,XTERM);
3245 case KEY_socketpair:
3246 LOP(OP_SOCKPAIR,XTERM);
3249 checkcomma(s,tokenbuf,"subroutine name");
3251 if (*s == ';' || *s == ')') /* probably a close */
3252 croak("sort is now a reserved word");
3254 s = force_word(s,WORD,TRUE,TRUE,TRUE);
3258 LOP(OP_SPLIT,XTERM);
3261 LOP(OP_SPRINTF,XTERM);
3264 LOP(OP_SPLICE,XTERM);
3280 LOP(OP_SUBSTR,XTERM);
3287 if (isIDFIRST(*s) || *s == '\'' || *s == ':') {
3290 d = scan_word(s, tmpbuf, TRUE, &len);
3291 if (strchr(tmpbuf, ':'))
3292 sv_setpv(subname, tmpbuf);
3294 sv_setsv(subname,curstname);
3295 sv_catpvn(subname,"::",2);
3296 sv_catpvn(subname,tmpbuf,len);
3298 s = force_word(s,WORD,FALSE,TRUE,TRUE);
3302 expect = XTERMBLOCK;
3303 sv_setpv(subname,"?");
3306 if (tmp == KEY_format) {
3309 lex_formbrack = lex_brackets + 1;
3313 /* Look for a prototype */
3318 SvREFCNT_dec(lex_stuff);
3320 croak("Prototype not terminated");
3323 nextval[1] = nextval[0];
3324 nexttype[1] = nexttype[0];
3325 nextval[0].opval = (OP*)newSVOP(OP_CONST, 0, lex_stuff);
3326 nexttype[0] = THING;
3327 if (nexttoke == 1) {
3328 lex_defer = lex_state;
3329 lex_expect = expect;
3330 lex_state = LEX_KNOWNEXT;
3335 if (*SvPV(subname,na) == '?') {
3336 sv_setpv(subname,"__ANON__");
3343 LOP(OP_SYSTEM,XREF);
3346 LOP(OP_SYMLINK,XTERM);
3349 LOP(OP_SYSCALL,XTERM);
3352 LOP(OP_SYSOPEN,XTERM);
3355 LOP(OP_SYSREAD,XTERM);
3358 LOP(OP_SYSWRITE,XTERM);
3362 TERM(sublex_start());
3383 LOP(OP_TRUNCATE,XTERM);
3395 yylval.ival = curcop->cop_line;
3399 yylval.ival = curcop->cop_line;
3403 LOP(OP_UNLINK,XTERM);
3409 LOP(OP_UNPACK,XTERM);
3412 LOP(OP_UTIME,XTERM);
3416 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
3417 if (*d != '0' && isDIGIT(*d))
3418 yywarn("umask: argument is missing initial 0");
3423 LOP(OP_UNSHIFT,XTERM);
3426 if (expect != XSTATE)
3427 yyerror("\"use\" not allowed in expression");
3430 s = force_version(s);
3431 if(*s == ';' || (s = skipspace(s), *s == ';')) {
3432 nextval[nexttoke].opval = Nullop;
3437 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3438 s = force_version(s);
3451 yylval.ival = curcop->cop_line;
3455 hints |= HINT_BLOCK_SCOPE;
3462 LOP(OP_WAITPID,XTERM);
3468 gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */
3472 if (expect == XOPERATOR)
3478 yylval.ival = OP_XOR;
3483 TERM(sublex_start());
3496 if (strEQ(d,"__LINE__")) return -KEY___LINE__;
3497 if (strEQ(d,"__FILE__")) return -KEY___FILE__;
3498 if (strEQ(d,"__DATA__")) return KEY___DATA__;
3499 if (strEQ(d,"__END__")) return KEY___END__;
3503 if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD;
3508 if (strEQ(d,"and")) return -KEY_and;
3509 if (strEQ(d,"abs")) return -KEY_abs;
3512 if (strEQ(d,"alarm")) return -KEY_alarm;
3513 if (strEQ(d,"atan2")) return -KEY_atan2;
3516 if (strEQ(d,"accept")) return -KEY_accept;
3521 if (strEQ(d,"BEGIN")) return KEY_BEGIN;
3524 if (strEQ(d,"bless")) return -KEY_bless;
3525 if (strEQ(d,"bind")) return -KEY_bind;
3526 if (strEQ(d,"binmode")) return -KEY_binmode;
3529 if (strEQ(d,"CORE")) return -KEY_CORE;
3534 if (strEQ(d,"cmp")) return -KEY_cmp;
3535 if (strEQ(d,"chr")) return -KEY_chr;
3536 if (strEQ(d,"cos")) return -KEY_cos;
3539 if (strEQ(d,"chop")) return KEY_chop;
3542 if (strEQ(d,"close")) return -KEY_close;
3543 if (strEQ(d,"chdir")) return -KEY_chdir;
3544 if (strEQ(d,"chomp")) return KEY_chomp;
3545 if (strEQ(d,"chmod")) return -KEY_chmod;
3546 if (strEQ(d,"chown")) return -KEY_chown;
3547 if (strEQ(d,"crypt")) return -KEY_crypt;
3550 if (strEQ(d,"chroot")) return -KEY_chroot;
3551 if (strEQ(d,"caller")) return -KEY_caller;
3554 if (strEQ(d,"connect")) return -KEY_connect;
3557 if (strEQ(d,"closedir")) return -KEY_closedir;
3558 if (strEQ(d,"continue")) return -KEY_continue;
3563 if (strEQ(d,"DESTROY")) return KEY_DESTROY;
3568 if (strEQ(d,"do")) return KEY_do;
3571 if (strEQ(d,"die")) return -KEY_die;
3574 if (strEQ(d,"dump")) return -KEY_dump;
3577 if (strEQ(d,"delete")) return KEY_delete;
3580 if (strEQ(d,"defined")) return KEY_defined;
3581 if (strEQ(d,"dbmopen")) return -KEY_dbmopen;
3584 if (strEQ(d,"dbmclose")) return -KEY_dbmclose;
3589 if (strEQ(d,"EQ")) { deprecate(d); return -KEY_eq;}
3590 if (strEQ(d,"END")) return KEY_END;
3595 if (strEQ(d,"eq")) return -KEY_eq;
3598 if (strEQ(d,"eof")) return -KEY_eof;
3599 if (strEQ(d,"exp")) return -KEY_exp;
3602 if (strEQ(d,"else")) return KEY_else;
3603 if (strEQ(d,"exit")) return -KEY_exit;
3604 if (strEQ(d,"eval")) return KEY_eval;
3605 if (strEQ(d,"exec")) return -KEY_exec;
3606 if (strEQ(d,"each")) return KEY_each;
3609 if (strEQ(d,"elsif")) return KEY_elsif;
3612 if (strEQ(d,"exists")) return KEY_exists;
3613 if (strEQ(d,"elseif")) warn("elseif should be elsif");
3616 if (strEQ(d,"endgrent")) return -KEY_endgrent;
3617 if (strEQ(d,"endpwent")) return -KEY_endpwent;
3620 if (strEQ(d,"endnetent")) return -KEY_endnetent;
3623 if (strEQ(d,"endhostent")) return -KEY_endhostent;
3624 if (strEQ(d,"endservent")) return -KEY_endservent;
3627 if (strEQ(d,"endprotoent")) return -KEY_endprotoent;
3634 if (strEQ(d,"for")) return KEY_for;
3637 if (strEQ(d,"fork")) return -KEY_fork;
3640 if (strEQ(d,"fcntl")) return -KEY_fcntl;
3641 if (strEQ(d,"flock")) return -KEY_flock;
3644 if (strEQ(d,"format")) return KEY_format;
3645 if (strEQ(d,"fileno")) return -KEY_fileno;
3648 if (strEQ(d,"foreach")) return KEY_foreach;
3651 if (strEQ(d,"formline")) return -KEY_formline;
3657 if (strEQ(d,"GT")) { deprecate(d); return -KEY_gt;}
3658 if (strEQ(d,"GE")) { deprecate(d); return -KEY_ge;}
3662 if (strnEQ(d,"get",3)) {
3667 if (strEQ(d,"ppid")) return -KEY_getppid;
3668 if (strEQ(d,"pgrp")) return -KEY_getpgrp;
3671 if (strEQ(d,"pwent")) return -KEY_getpwent;
3672 if (strEQ(d,"pwnam")) return -KEY_getpwnam;
3673 if (strEQ(d,"pwuid")) return -KEY_getpwuid;
3676 if (strEQ(d,"peername")) return -KEY_getpeername;
3677 if (strEQ(d,"protoent")) return -KEY_getprotoent;
3678 if (strEQ(d,"priority")) return -KEY_getpriority;
3681 if (strEQ(d,"protobyname")) return -KEY_getprotobyname;
3684 if (strEQ(d,"protobynumber"))return -KEY_getprotobynumber;
3688 else if (*d == 'h') {
3689 if (strEQ(d,"hostbyname")) return -KEY_gethostbyname;
3690 if (strEQ(d,"hostbyaddr")) return -KEY_gethostbyaddr;
3691 if (strEQ(d,"hostent")) return -KEY_gethostent;
3693 else if (*d == 'n') {
3694 if (strEQ(d,"netbyname")) return -KEY_getnetbyname;
3695 if (strEQ(d,"netbyaddr")) return -KEY_getnetbyaddr;
3696 if (strEQ(d,"netent")) return -KEY_getnetent;
3698 else if (*d == 's') {
3699 if (strEQ(d,"servbyname")) return -KEY_getservbyname;
3700 if (strEQ(d,"servbyport")) return -KEY_getservbyport;
3701 if (strEQ(d,"servent")) return -KEY_getservent;
3702 if (strEQ(d,"sockname")) return -KEY_getsockname;
3703 if (strEQ(d,"sockopt")) return -KEY_getsockopt;
3705 else if (*d == 'g') {
3706 if (strEQ(d,"grent")) return -KEY_getgrent;
3707 if (strEQ(d,"grnam")) return -KEY_getgrnam;
3708 if (strEQ(d,"grgid")) return -KEY_getgrgid;
3710 else if (*d == 'l') {
3711 if (strEQ(d,"login")) return -KEY_getlogin;
3713 else if (strEQ(d,"c")) return -KEY_getc;
3718 if (strEQ(d,"gt")) return -KEY_gt;
3719 if (strEQ(d,"ge")) return -KEY_ge;
3722 if (strEQ(d,"grep")) return KEY_grep;
3723 if (strEQ(d,"goto")) return KEY_goto;
3724 if (strEQ(d,"glob")) return -KEY_glob;
3727 if (strEQ(d,"gmtime")) return -KEY_gmtime;
3732 if (strEQ(d,"hex")) return -KEY_hex;
3737 if (strEQ(d,"if")) return KEY_if;
3740 if (strEQ(d,"int")) return -KEY_int;
3743 if (strEQ(d,"index")) return -KEY_index;
3744 if (strEQ(d,"ioctl")) return -KEY_ioctl;
3749 if (strEQ(d,"join")) return -KEY_join;
3753 if (strEQ(d,"keys")) return KEY_keys;
3754 if (strEQ(d,"kill")) return -KEY_kill;
3759 if (strEQ(d,"LT")) { deprecate(d); return -KEY_lt;}
3760 if (strEQ(d,"LE")) { deprecate(d); return -KEY_le;}
3766 if (strEQ(d,"lt")) return -KEY_lt;
3767 if (strEQ(d,"le")) return -KEY_le;
3768 if (strEQ(d,"lc")) return -KEY_lc;
3771 if (strEQ(d,"log")) return -KEY_log;
3774 if (strEQ(d,"last")) return KEY_last;
3775 if (strEQ(d,"link")) return -KEY_link;
3778 if (strEQ(d,"local")) return KEY_local;
3779 if (strEQ(d,"lstat")) return -KEY_lstat;
3782 if (strEQ(d,"length")) return -KEY_length;
3783 if (strEQ(d,"listen")) return -KEY_listen;
3786 if (strEQ(d,"lcfirst")) return -KEY_lcfirst;
3789 if (strEQ(d,"localtime")) return -KEY_localtime;
3795 case 1: return KEY_m;
3797 if (strEQ(d,"my")) return KEY_my;
3800 if (strEQ(d,"map")) return KEY_map;
3803 if (strEQ(d,"mkdir")) return -KEY_mkdir;
3806 if (strEQ(d,"msgctl")) return -KEY_msgctl;
3807 if (strEQ(d,"msgget")) return -KEY_msgget;
3808 if (strEQ(d,"msgrcv")) return -KEY_msgrcv;
3809 if (strEQ(d,"msgsnd")) return -KEY_msgsnd;
3814 if (strEQ(d,"NE")) { deprecate(d); return -KEY_ne;}
3817 if (strEQ(d,"next")) return KEY_next;
3818 if (strEQ(d,"ne")) return -KEY_ne;
3819 if (strEQ(d,"not")) return -KEY_not;
3820 if (strEQ(d,"no")) return KEY_no;
3825 if (strEQ(d,"or")) return -KEY_or;
3828 if (strEQ(d,"ord")) return -KEY_ord;
3829 if (strEQ(d,"oct")) return -KEY_oct;
3832 if (strEQ(d,"open")) return -KEY_open;
3835 if (strEQ(d,"opendir")) return -KEY_opendir;
3842 if (strEQ(d,"pop")) return KEY_pop;
3843 if (strEQ(d,"pos")) return KEY_pos;
3846 if (strEQ(d,"push")) return KEY_push;
3847 if (strEQ(d,"pack")) return -KEY_pack;
3848 if (strEQ(d,"pipe")) return -KEY_pipe;
3851 if (strEQ(d,"print")) return KEY_print;
3854 if (strEQ(d,"printf")) return KEY_printf;
3857 if (strEQ(d,"package")) return KEY_package;
3860 if (strEQ(d,"prototype")) return KEY_prototype;
3865 if (strEQ(d,"q")) return KEY_q;
3866 if (strEQ(d,"qq")) return KEY_qq;
3867 if (strEQ(d,"qw")) return KEY_qw;
3868 if (strEQ(d,"qx")) return KEY_qx;
3870 else if (strEQ(d,"quotemeta")) return -KEY_quotemeta;
3875 if (strEQ(d,"ref")) return -KEY_ref;
3878 if (strEQ(d,"read")) return -KEY_read;
3879 if (strEQ(d,"rand")) return -KEY_rand;
3880 if (strEQ(d,"recv")) return -KEY_recv;
3881 if (strEQ(d,"redo")) return KEY_redo;
3884 if (strEQ(d,"rmdir")) return -KEY_rmdir;
3885 if (strEQ(d,"reset")) return -KEY_reset;
3888 if (strEQ(d,"return")) return KEY_return;
3889 if (strEQ(d,"rename")) return -KEY_rename;
3890 if (strEQ(d,"rindex")) return -KEY_rindex;
3893 if (strEQ(d,"require")) return -KEY_require;
3894 if (strEQ(d,"reverse")) return -KEY_reverse;
3895 if (strEQ(d,"readdir")) return -KEY_readdir;
3898 if (strEQ(d,"readlink")) return -KEY_readlink;
3899 if (strEQ(d,"readline")) return -KEY_readline;
3900 if (strEQ(d,"readpipe")) return -KEY_readpipe;
3903 if (strEQ(d,"rewinddir")) return -KEY_rewinddir;
3909 case 0: return KEY_s;
3911 if (strEQ(d,"scalar")) return KEY_scalar;
3916 if (strEQ(d,"seek")) return -KEY_seek;
3917 if (strEQ(d,"send")) return -KEY_send;
3920 if (strEQ(d,"semop")) return -KEY_semop;
3923 if (strEQ(d,"select")) return -KEY_select;
3924 if (strEQ(d,"semctl")) return -KEY_semctl;
3925 if (strEQ(d,"semget")) return -KEY_semget;
3928 if (strEQ(d,"setpgrp")) return -KEY_setpgrp;
3929 if (strEQ(d,"seekdir")) return -KEY_seekdir;
3932 if (strEQ(d,"setpwent")) return -KEY_setpwent;
3933 if (strEQ(d,"setgrent")) return -KEY_setgrent;
3936 if (strEQ(d,"setnetent")) return -KEY_setnetent;
3939 if (strEQ(d,"setsockopt")) return -KEY_setsockopt;
3940 if (strEQ(d,"sethostent")) return -KEY_sethostent;
3941 if (strEQ(d,"setservent")) return -KEY_setservent;
3944 if (strEQ(d,"setpriority")) return -KEY_setpriority;
3945 if (strEQ(d,"setprotoent")) return -KEY_setprotoent;
3952 if (strEQ(d,"shift")) return KEY_shift;
3955 if (strEQ(d,"shmctl")) return -KEY_shmctl;
3956 if (strEQ(d,"shmget")) return -KEY_shmget;
3959 if (strEQ(d,"shmread")) return -KEY_shmread;
3962 if (strEQ(d,"shmwrite")) return -KEY_shmwrite;
3963 if (strEQ(d,"shutdown")) return -KEY_shutdown;
3968 if (strEQ(d,"sin")) return -KEY_sin;
3971 if (strEQ(d,"sleep")) return -KEY_sleep;
3974 if (strEQ(d,"sort")) return KEY_sort;
3975 if (strEQ(d,"socket")) return -KEY_socket;
3976 if (strEQ(d,"socketpair")) return -KEY_socketpair;
3979 if (strEQ(d,"split")) return KEY_split;
3980 if (strEQ(d,"sprintf")) return -KEY_sprintf;
3981 if (strEQ(d,"splice")) return KEY_splice;
3984 if (strEQ(d,"sqrt")) return -KEY_sqrt;
3987 if (strEQ(d,"srand")) return -KEY_srand;
3990 if (strEQ(d,"stat")) return -KEY_stat;
3991 if (strEQ(d,"study")) return KEY_study;
3994 if (strEQ(d,"substr")) return -KEY_substr;
3995 if (strEQ(d,"sub")) return KEY_sub;
4000 if (strEQ(d,"system")) return -KEY_system;
4003 if (strEQ(d,"sysopen")) return -KEY_sysopen;
4004 if (strEQ(d,"sysread")) return -KEY_sysread;
4005 if (strEQ(d,"symlink")) return -KEY_symlink;
4006 if (strEQ(d,"syscall")) return -KEY_syscall;
4009 if (strEQ(d,"syswrite")) return -KEY_syswrite;
4018 if (strEQ(d,"tr")) return KEY_tr;
4021 if (strEQ(d,"tie")) return KEY_tie;
4024 if (strEQ(d,"tell")) return -KEY_tell;
4025 if (strEQ(d,"tied")) return KEY_tied;
4026 if (strEQ(d,"time")) return -KEY_time;
4029 if (strEQ(d,"times")) return -KEY_times;
4032 if (strEQ(d,"telldir")) return -KEY_telldir;
4035 if (strEQ(d,"truncate")) return -KEY_truncate;
4042 if (strEQ(d,"uc")) return -KEY_uc;
4045 if (strEQ(d,"use")) return KEY_use;
4048 if (strEQ(d,"undef")) return KEY_undef;
4049 if (strEQ(d,"until")) return KEY_until;
4050 if (strEQ(d,"untie")) return KEY_untie;
4051 if (strEQ(d,"utime")) return -KEY_utime;
4052 if (strEQ(d,"umask")) return -KEY_umask;
4055 if (strEQ(d,"unless")) return KEY_unless;
4056 if (strEQ(d,"unpack")) return -KEY_unpack;
4057 if (strEQ(d,"unlink")) return -KEY_unlink;
4060 if (strEQ(d,"unshift")) return KEY_unshift;
4061 if (strEQ(d,"ucfirst")) return -KEY_ucfirst;
4066 if (strEQ(d,"values")) return -KEY_values;
4067 if (strEQ(d,"vec")) return -KEY_vec;
4072 if (strEQ(d,"warn")) return -KEY_warn;
4073 if (strEQ(d,"wait")) return -KEY_wait;
4076 if (strEQ(d,"while")) return KEY_while;
4077 if (strEQ(d,"write")) return -KEY_write;
4080 if (strEQ(d,"waitpid")) return -KEY_waitpid;
4083 if (strEQ(d,"wantarray")) return -KEY_wantarray;
4088 if (len == 1) return -KEY_x;
4089 if (strEQ(d,"xor")) return -KEY_xor;
4092 if (len == 1) return KEY_y;
4101 checkcomma(s,name,what)
4108 if (dowarn && *s == ' ' && s[1] == '(') { /* XXX gotta be a better way */
4110 for (w = s+2; *w && level; w++) {
4117 for (; *w && isSPACE(*w); w++) ;
4118 if (!*w || !strchr(";|})]oa!=", *w)) /* an advisory hack only... */
4119 warn("%s (...) interpreted as function",name);
4121 while (s < bufend && isSPACE(*s))
4125 while (s < bufend && isSPACE(*s))
4127 if (isIDFIRST(*s)) {
4131 while (s < bufend && isSPACE(*s))
4136 kw = keyword(w, s - w) || perl_get_cv(w, FALSE) != 0;
4140 croak("No comma allowed after %s", what);
4146 scan_word(s, dest, allow_package, slp)
4152 register char *d = dest;
4156 else if (*s == '\'' && allow_package && isIDFIRST(s[1])) {
4161 else if (*s == ':' && s[1] == ':' && allow_package && isIDFIRST(s[2])) {
4174 scan_ident(s,send,dest,ck_uni)
4176 register char *send;
4184 if (lex_brackets == 0)
4197 else if (*s == '\'' && isIDFIRST(s[1])) {
4202 else if (*s == ':' && s[1] == ':') {
4213 if (lex_state != LEX_NORMAL)
4214 lex_state = LEX_INTERPENDMAYBE;
4217 if (*s == '$' && s[1] &&
4218 (isALPHA(s[1]) || strchr("$_{", s[1]) || strnEQ(s+1,"::",2)) )
4229 if (*d == '^' && *s && (isUPPER(*s) || strchr("[\\]^_?", *s))) {
4233 if (isSPACE(s[-1])) {
4234 while (s < send && (*s == ' ' || *s == '\t')) s++;
4237 if (isALPHA(*d) || *d == '_') {
4239 while (isALNUM(*s) || *s == ':')
4242 while (s < send && (*s == ' ' || *s == '\t')) s++;
4243 if ((*s == '[' || *s == '{')) {
4244 if (dowarn && keyword(dest, d - dest)) {
4245 char *brack = *s == '[' ? "[...]" : "{...}";
4246 warn("Ambiguous use of %c{%s%s} resolved to %c%s%s",
4247 funny, dest, brack, funny, dest, brack);
4249 lex_fakebrack = lex_brackets+1;
4251 lex_brackstack[lex_brackets++] = XOPERATOR;
4257 if (lex_state == LEX_INTERPNORMAL && !lex_brackets)
4258 lex_state = LEX_INTERPEND;
4262 (keyword(dest, d - dest) || perl_get_cv(dest, FALSE)))
4263 warn("Ambiguous use of %c{%s} resolved to %c%s",
4264 funny, dest, funny, dest);
4267 s = bracket; /* let the parser handle it */
4271 else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s))
4272 lex_state = LEX_INTERPEND;
4276 void pmflag(pmfl,ch)
4285 *pmfl |= PMf_GLOBAL;
4289 *pmfl |= PMf_MULTILINE;
4291 *pmfl |= PMf_SINGLELINE;
4293 *pmfl |= PMf_EXTENDED;
4303 s = scan_str(start);
4306 SvREFCNT_dec(lex_stuff);
4308 croak("Search pattern not terminated");
4310 pm = (PMOP*)newPMOP(OP_MATCH, 0);
4311 if (multi_open == '?')
4312 pm->op_pmflags |= PMf_ONCE;
4314 while (*s && strchr("iogmsx", *s))
4315 pmflag(&pm->op_pmflags,*s++);
4317 pm->op_pmpermflags = pm->op_pmflags;
4319 yylval.ival = OP_MATCH;
4331 yylval.ival = OP_NULL;
4333 s = scan_str(start);
4337 SvREFCNT_dec(lex_stuff);
4339 croak("Substitution pattern not terminated");
4342 if (s[-1] == multi_open)
4348 SvREFCNT_dec(lex_stuff);
4351 SvREFCNT_dec(lex_repl);
4353 croak("Substitution replacement not terminated");
4356 pm = (PMOP*)newPMOP(OP_SUBST, 0);
4357 while (*s && strchr("iogmsex", *s)) {
4363 pmflag(&pm->op_pmflags,*s++);
4368 pm->op_pmflags |= PMf_EVAL;
4369 repl = newSVpv("",0);
4371 sv_catpv(repl, es ? "eval " : "do ");
4372 sv_catpvn(repl, "{ ", 2);
4373 sv_catsv(repl, lex_repl);
4374 sv_catpvn(repl, " };", 2);
4375 SvCOMPILED_on(repl);
4376 SvREFCNT_dec(lex_repl);
4380 pm->op_pmpermflags = pm->op_pmflags;
4382 yylval.ival = OP_SUBST;
4390 if (!pm->op_pmshort && pm->op_pmregexp->regstart &&
4391 (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH)
4393 if (!(pm->op_pmregexp->reganch & ROPT_ANCH))
4394 pm->op_pmflags |= PMf_SCANFIRST;
4395 else if (pm->op_pmflags & PMf_FOLD)
4397 pm->op_pmshort = SvREFCNT_inc(pm->op_pmregexp->regstart);
4398 pm->op_pmslen = SvCUR(pm->op_pmshort);
4400 else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */
4401 if (pm->op_pmshort &&
4402 sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust))
4404 if (pm->op_pmflags & PMf_SCANFIRST) {
4405 SvREFCNT_dec(pm->op_pmshort);
4406 pm->op_pmshort = Nullsv;
4409 SvREFCNT_dec(pm->op_pmregexp->regmust);
4410 pm->op_pmregexp->regmust = Nullsv;
4414 if (!pm->op_pmshort || /* promote the better string */
4415 ((pm->op_pmflags & PMf_SCANFIRST) &&
4416 (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)) )){
4417 SvREFCNT_dec(pm->op_pmshort); /* ok if null */
4418 pm->op_pmshort = pm->op_pmregexp->regmust;
4419 pm->op_pmslen = SvCUR(pm->op_pmshort);
4420 pm->op_pmregexp->regmust = Nullsv;
4421 pm->op_pmflags |= PMf_SCANFIRST;
4437 yylval.ival = OP_NULL;
4439 s = scan_str(start);
4442 SvREFCNT_dec(lex_stuff);
4444 croak("Translation pattern not terminated");
4446 if (s[-1] == multi_open)
4452 SvREFCNT_dec(lex_stuff);
4455 SvREFCNT_dec(lex_repl);
4457 croak("Translation replacement not terminated");
4460 New(803,tbl,256,short);
4461 op = newPVOP(OP_TRANS, 0, (char*)tbl);
4463 complement = delete = squash = 0;
4464 while (*s == 'c' || *s == 'd' || *s == 's') {
4466 complement = OPpTRANS_COMPLEMENT;
4468 delete = OPpTRANS_DELETE;
4470 squash = OPpTRANS_SQUASH;
4473 op->op_private = delete|squash|complement;
4476 yylval.ival = OP_TRANS;
4485 I32 op_type = OP_SCALAR;
4496 for (peek = s; *peek == ' ' || *peek == '\t'; peek++) ;
4497 if (*peek && strchr("`'\"",*peek)) {
4500 s = cpytill(d,s,bufend,term,&len);
4511 deprecate("bare << to mean <<\"\"");
4514 } /* assuming tokenbuf won't clobber */
4519 if (rsfp || !(d=ninstr(s,bufend,d,d+1)))
4520 herewas = newSVpv(s,bufend-s);
4522 s--, herewas = newSVpv(s,d-s);
4523 s += SvCUR(herewas);
4525 tmpstr = NEWSV(87,80);
4526 sv_upgrade(tmpstr, SVt_PVIV);
4531 else if (term == '`') {
4532 op_type = OP_BACKTICK;
4533 SvIVX(tmpstr) = '\\';
4537 multi_start = curcop->cop_line;
4538 multi_open = multi_close = '<';
4542 while (s < bufend &&
4543 (*s != term || bcmp(s,tokenbuf,len) != 0) ) {
4548 curcop->cop_line = multi_start;
4549 missingterm(tokenbuf);
4551 sv_setpvn(tmpstr,d+1,s-d);
4553 sv_catpvn(herewas,s,bufend-s);
4554 sv_setsv(linestr,herewas);
4555 oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr);
4556 bufend = SvPVX(linestr) + SvCUR(linestr);
4559 sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */
4560 while (s >= bufend) { /* multiple line string? */
4562 !(oldoldbufptr = oldbufptr = s = filter_gets(linestr, rsfp))) {
4563 curcop->cop_line = multi_start;
4564 missingterm(tokenbuf);
4567 if (perldb && curstash != debstash) {
4568 SV *sv = NEWSV(88,0);
4570 sv_upgrade(sv, SVt_PVMG);
4571 sv_setsv(sv,linestr);
4572 av_store(GvAV(curcop->cop_filegv),
4573 (I32)curcop->cop_line,sv);
4575 bufend = SvPVX(linestr) + SvCUR(linestr);
4576 if (*s == term && bcmp(s,tokenbuf,len) == 0) {
4579 sv_catsv(linestr,herewas);
4580 bufend = SvPVX(linestr) + SvCUR(linestr);
4584 sv_catsv(tmpstr,linestr);
4587 multi_end = curcop->cop_line;
4589 if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) {
4590 SvLEN_set(tmpstr, SvCUR(tmpstr) + 1);
4591 Renew(SvPVX(tmpstr), SvLEN(tmpstr), char);
4593 SvREFCNT_dec(herewas);
4595 yylval.ival = op_type;
4600 scan_inputsymbol(start)
4603 register char *s = start;
4608 s = cpytill(d, s+1, bufend, '>', &len);
4612 croak("Unterminated <> operator");
4614 if (*d == '$' && d[1]) d++;
4615 while (*d && (isALNUM(*d) || *d == '\'' || *d == ':'))
4617 if (d - tokenbuf != len) {
4618 yylval.ival = OP_GLOB;
4620 s = scan_str(start);
4622 croak("Glob not terminated");
4628 (void)strcpy(d,"ARGV");
4631 if (tmp = pad_findmy(d)) {
4632 OP *op = newOP(OP_PADSV, 0);
4634 lex_op = (OP*)newUNOP(OP_READLINE, 0, newUNOP(OP_RV2GV, 0, op));
4637 GV *gv = gv_fetchpv(d+1,TRUE, SVt_PV);
4638 lex_op = (OP*)newUNOP(OP_READLINE, 0,
4639 newUNOP(OP_RV2GV, 0,
4640 newUNOP(OP_RV2SV, 0,
4641 newGVOP(OP_GV, 0, gv))));
4643 yylval.ival = OP_NULL;
4646 GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO);
4647 lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv));
4648 yylval.ival = OP_NULL;
4660 register char *s = start;
4669 multi_start = curcop->cop_line;
4671 if (term && (tmps = strchr("([{< )]}> )]}>",term)))
4676 sv_upgrade(sv, SVt_PVIV);
4678 (void)SvPOK_only(sv); /* validate pointer */
4681 SvGROW(sv, SvCUR(sv) + (bufend - s) + 1);
4682 to = SvPVX(sv)+SvCUR(sv);
4683 if (multi_open == multi_close) {
4684 for (; s < bufend; s++,to++) {
4685 if (*s == '\n' && !rsfp)
4687 if (*s == '\\' && s+1 < bufend && term != '\\') {
4693 else if (*s == term)
4699 for (; s < bufend; s++,to++) {
4700 if (*s == '\n' && !rsfp)
4702 if (*s == '\\' && s+1 < bufend && term != '\\') {
4708 else if (*s == term && --brackets <= 0)
4710 else if (*s == multi_open)
4716 SvCUR_set(sv, to - SvPVX(sv));
4718 if (s < bufend) break; /* string ends on this line? */
4721 !(oldoldbufptr = oldbufptr = s = filter_gets(linestr, rsfp))) {
4723 curcop->cop_line = multi_start;
4727 if (perldb && curstash != debstash) {
4728 SV *sv = NEWSV(88,0);
4730 sv_upgrade(sv, SVt_PVMG);
4731 sv_setsv(sv,linestr);
4732 av_store(GvAV(curcop->cop_filegv),
4733 (I32)curcop->cop_line, sv);
4735 bufend = SvPVX(linestr) + SvCUR(linestr);
4737 multi_end = curcop->cop_line;
4739 if (SvCUR(sv) + 5 < SvLEN(sv)) {
4740 SvLEN_set(sv, SvCUR(sv) + 1);
4741 Renew(SvPVX(sv), SvLEN(sv), char);
4754 register char *s = start;
4764 croak("panic: scan_num");
4774 else if (s[1] == '.')
4788 yyerror("Illegal octal digit");
4790 case '0': case '1': case '2': case '3': case '4':
4791 case '5': case '6': case '7':
4795 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
4796 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
4800 i += (*s++ & 7) + 9;
4807 if (tryi32 == i && tryi32 >= 0)
4808 sv_setiv(sv,tryi32);
4810 sv_setnv(sv,(double)i);
4813 case '1': case '2': case '3': case '4': case '5':
4814 case '6': case '7': case '8': case '9': case '.':
4818 while (isDIGIT(*s) || *s == '_') {
4820 if (dowarn && lastub && s - lastub != 3)
4821 warn("Misplaced _ in number");
4827 if (dowarn && lastub && s - lastub != 3)
4828 warn("Misplaced _ in number");
4829 if (*s == '.' && s[1] != '.') {
4832 while (isDIGIT(*s) || *s == '_') {
4839 if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) {
4842 *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */
4843 if (*s == '+' || *s == '-')
4850 value = atof(tokenbuf);
4851 tryi32 = I_32(value);
4852 if (!floatit && (double)tryi32 == value)
4853 sv_setiv(sv,tryi32);
4859 yylval.opval = newSVOP(OP_CONST, 0, sv);
4870 SV *stuff = newSVpv("",0);
4871 bool needargs = FALSE;
4874 if (*s == '.' || *s == '}') {
4876 for (t = s+1; *t == ' ' || *t == '\t'; t++) ;
4880 if (in_eval && !rsfp) {
4881 eol = strchr(s,'\n');
4886 eol = bufend = SvPVX(linestr) + SvCUR(linestr);
4888 for (t = s; t < eol; t++) {
4889 if (*t == '~' && t[1] == '~' && SvCUR(stuff)) {
4891 goto enough; /* ~~ must be first line in formline */
4893 if (*t == '@' || *t == '^')
4896 sv_catpvn(stuff, s, eol-s);
4900 s = filter_gets(linestr, rsfp);
4901 oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr);
4902 bufend = bufptr + SvCUR(linestr);
4905 yyerror("Format not terminated");
4915 lex_state = LEX_NORMAL;
4916 nextval[nexttoke].ival = 0;
4920 lex_state = LEX_FORMLINE;
4921 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff);
4923 nextval[nexttoke].ival = OP_FORMLINE;
4927 SvREFCNT_dec(stuff);
4939 cshlen = strlen(cshname);
4946 int oldsavestack_ix = savestack_ix;
4947 CV* outsidecv = compcv;
4952 assert(SvTYPE(compcv) == SVt_PVCV);
4960 SAVESPTR(comppad_name);
4962 SAVEINT(comppad_name_fill);
4963 SAVEINT(min_intro_pending);
4964 SAVEINT(max_intro_pending);
4965 SAVEINT(pad_reset_pending);
4967 compcv = (CV*)NEWSV(1104,0);
4968 sv_upgrade((SV *)compcv, SVt_PVCV);
4971 comppad_name = newAV();
4972 comppad_name_fill = 0;
4973 min_intro_pending = 0;
4974 av_push(comppad, Nullsv);
4975 curpad = AvARRAY(comppad);
4977 subline = curcop->cop_line;
4979 comppadlist = newAV();
4980 AvREAL_off(comppadlist);
4981 av_store(comppadlist, 0, (SV*)comppad_name);
4982 av_store(comppadlist, 1, (SV*)comppad);
4984 CvPADLIST(compcv) = comppadlist;
4985 CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc((SV*)outsidecv);
4987 return oldsavestack_ix;
4997 for (o = CvSTART(cv); o; o = o->op_next) {
4998 OPCODE type = o->op_type;
5000 if (type == OP_NEXTSTATE || type == OP_NULL || type == OP_PUSHMARK)
5002 if (type == OP_LEAVESUB || type == OP_RETURN)
5004 if (type != OP_CONST || sv)
5006 sv = ((SVOP*)o)->op_sv;
5027 char *tname = tmpbuf;
5029 if (bufptr > oldoldbufptr && bufptr - oldoldbufptr < 200 &&
5030 oldoldbufptr != oldbufptr && oldbufptr != bufptr) {
5031 while (isSPACE(*oldoldbufptr))
5033 sprintf(tname,"near \"%.*s\"",bufptr - oldoldbufptr, oldoldbufptr);
5035 else if (bufptr > oldbufptr && bufptr - oldbufptr < 200 &&
5036 oldbufptr != bufptr) {
5037 while (isSPACE(*oldbufptr))
5039 sprintf(tname,"near \"%.*s\"",bufptr - oldbufptr, oldbufptr);
5041 else if (yychar > 255)
5042 tname = "next token ???";
5043 else if (!yychar || (yychar == ';' && !rsfp))
5044 (void)strcpy(tname,"at EOF");
5045 else if ((yychar & 127) == 127) {
5046 if (lex_state == LEX_NORMAL ||
5047 (lex_state == LEX_KNOWNEXT && lex_defer == LEX_NORMAL))
5048 (void)strcpy(tname,"at end of line");
5050 (void)strcpy(tname,"within pattern");
5052 (void)strcpy(tname,"within string");
5054 else if (yychar < 32)
5055 (void)sprintf(tname,"next char ^%c",yychar+64);
5057 (void)sprintf(tname,"next char %c",yychar);
5058 (void)sprintf(buf, "%s at %s line %d, %s\n",
5059 s,SvPVX(GvSV(curcop->cop_filegv)),curcop->cop_line,tname);
5060 if (curcop->cop_line == multi_end && multi_start < multi_end) {
5061 sprintf(buf+strlen(buf),
5062 " (Might be a runaway multi-line %c%c string starting on line %ld)\n",
5063 multi_open,multi_close,(long)multi_start);
5069 sv_catpv(GvSV(errgv),buf);
5072 if (++error_count >= 10)
5073 croak("%s has too many errors.\n",
5074 SvPVX(GvSV(curcop->cop_filegv)));