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_word _((char *start, int token, int check_keyword, int allow_pack, int allow_tick));
20 static SV *q _((SV *sv));
21 static char *scan_const _((char *start));
22 static char *scan_formline _((char *s));
23 static char *scan_heredoc _((char *s));
24 static char *scan_ident _((char *s, char *send, char *dest, I32 ck_uni));
25 static char *scan_inputsymbol _((char *start));
26 static char *scan_pat _((char *start));
27 static char *scan_str _((char *start));
28 static char *scan_subst _((char *start));
29 static char *scan_trans _((char *start));
30 static char *scan_word _((char *s, char *dest, int allow_package, STRLEN *slp));
31 static char *skipspace _((char *s));
32 static void checkcomma _((char *s, char *name, char *what));
33 static void force_ident _((char *s, int kind));
34 static void incline _((char *s));
35 static int intuit_method _((char *s, GV *gv));
36 static int intuit_more _((char *s));
37 static I32 lop _((I32 f, expectation x, char *s));
38 static void missingterm _((char *s));
39 static void no_op _((char *what, char *s));
40 static void set_csh _((void));
41 static I32 sublex_done _((void));
42 static I32 sublex_start _((void));
44 static int uni _((I32 f, char *s));
46 static char * filter_gets _((SV *sv, FILE *fp));
48 /* The following are arranged oddly so that the guard on the switch statement
49 * can get by with a single comparison (if the compiler is smart enough).
53 #define LEX_INTERPNORMAL 8
54 #define LEX_INTERPCASEMOD 7
55 #define LEX_INTERPSTART 6
56 #define LEX_INTERPEND 5
57 #define LEX_INTERPENDMAYBE 4
58 #define LEX_INTERPCONCAT 3
59 #define LEX_INTERPCONST 2
60 #define LEX_FORMLINE 1
61 #define LEX_KNOWNEXT 0
79 #define CLINE (copline = (curcop->cop_line < copline ? curcop->cop_line : copline))
81 #define TOKEN(retval) return (bufptr = s,(int)retval)
82 #define OPERATOR(retval) return (expect = XTERM,bufptr = s,(int)retval)
83 #define AOPERATOR(retval) return ao((expect = XTERM,bufptr = s,(int)retval))
84 #define PREBLOCK(retval) return (expect = XBLOCK,bufptr = s,(int)retval)
85 #define PRETERMBLOCK(retval) return (expect = XTERMBLOCK,bufptr = s,(int)retval)
86 #define PREREF(retval) return (expect = XREF,bufptr = s,(int)retval)
87 #define TERM(retval) return (CLINE, expect = XOPERATOR,bufptr = s,(int)retval)
88 #define LOOPX(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LOOPEX)
89 #define FTST(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)UNIOP)
90 #define FUN0(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC0)
91 #define FUN1(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC1)
92 #define BOop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITOROP))
93 #define BAop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITANDOP))
94 #define SHop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)SHIFTOP))
95 #define PWop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)POWOP))
96 #define PMop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MATCHOP)
97 #define Aop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)ADDOP))
98 #define Mop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)MULOP))
99 #define Eop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)EQOP)
100 #define Rop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)RELOP)
102 /* This bit of chicanery makes a unary function followed by
103 * a parenthesis into a function with one argument, highest precedence.
105 #define UNI(f) return(yylval.ival = f, \
108 last_uni = oldbufptr, \
110 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
112 #define UNIBRACK(f) return(yylval.ival = f, \
114 last_uni = oldbufptr, \
115 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
117 /* grandfather return to old style */
118 #define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP)
124 if (*bufptr == '=') {
126 if (toketype == ANDAND)
127 yylval.ival = OP_ANDASSIGN;
128 else if (toketype == OROR)
129 yylval.ival = OP_ORASSIGN;
141 char *oldbp = bufptr;
142 bool is_first = (oldbufptr == SvPVX(linestr));
144 sprintf(tmpbuf, "%s found where operator expected", what);
147 warn("\t(Missing semicolon on previous line?)\n");
148 else if (oldoldbufptr && isIDFIRST(*oldoldbufptr)) {
150 for (t = oldoldbufptr; *t && (isALNUM(*t) || *t == ':'); t++) ;
151 if (t < bufptr && isSPACE(*t))
152 warn("\t(Do you need to predeclare %.*s?)\n",
153 t - oldoldbufptr, oldoldbufptr);
157 warn("\t(Missing operator before %.*s?)\n", s - oldbp, oldbp);
168 char *nl = strrchr(s,'\n');
172 else if (multi_close < 32 || multi_close == 127) {
174 tmpbuf[1] = multi_close ^ 64;
180 *tmpbuf = multi_close;
184 q = strchr(s,'"') ? '\'' : '"';
185 croak("Can't find string terminator %c%s%c anywhere before EOF",q,s,q);
193 warn("Use of %s is deprecated", s);
199 deprecate("comma-less variable list");
210 SAVEINT(lex_brackets);
211 SAVEINT(lex_fakebrack);
212 SAVEINT(lex_casemods);
217 SAVEINT(curcop->cop_line);
221 SAVEPPTR(oldoldbufptr);
223 SAVEPPTR(lex_brackstack);
224 SAVEPPTR(lex_casestack);
227 lex_state = LEX_NORMAL;
232 New(899, lex_brackstack, 120, char);
233 New(899, lex_casestack, 12, char);
234 SAVEFREEPV(lex_brackstack);
235 SAVEFREEPV(lex_casestack);
237 *lex_casestack = '\0';
241 SvREFCNT_dec(lex_stuff);
244 SvREFCNT_dec(lex_repl);
249 if (SvREADONLY(linestr))
250 linestr = sv_2mortal(newSVsv(linestr));
251 s = SvPV(linestr, len);
252 if (len && s[len-1] != ';') {
253 if (!(SvFLAGS(linestr) & SVs_TEMP))
254 linestr = sv_2mortal(newSVsv(linestr));
255 sv_catpvn(linestr, "\n;", 2);
258 oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr);
259 bufend = bufptr + SvCUR(linestr);
261 rs = newSVpv("\n", 1);
282 while (*s == ' ' || *s == '\t') s++;
283 if (strnEQ(s, "line ", 5)) {
292 while (*s == ' ' || *s == '\t')
294 if (*s == '"' && (t = strchr(s+1, '"')))
298 return; /* false alarm */
299 for (t = s; !isSPACE(*t); t++) ;
304 curcop->cop_filegv = gv_fetchfile(s);
306 curcop->cop_filegv = gv_fetchfile(origfilename);
308 curcop->cop_line = atoi(n)-1;
315 if (lex_formbrack && lex_brackets <= lex_formbrack) {
316 while (s < bufend && (*s == ' ' || *s == '\t'))
321 while (s < bufend && isSPACE(*s))
323 if (s < bufend && *s == '#') {
324 while (s < bufend && *s != '\n')
329 if (s < bufend || !rsfp || lex_state != LEX_NORMAL)
331 if ((s = filter_gets(linestr, rsfp)) == Nullch) {
332 if (minus_n || minus_p) {
333 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
334 sv_catpv(linestr,";}");
335 minus_n = minus_p = 0;
338 sv_setpv(linestr,";");
339 oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr);
340 bufend = SvPVX(linestr) + SvCUR(linestr);
341 if (preprocess && !in_eval)
342 (void)my_pclose(rsfp);
343 else if ((FILE*)rsfp == stdin)
350 oldoldbufptr = oldbufptr = bufptr = s;
351 bufend = bufptr + SvCUR(linestr);
353 if (perldb && curstash != debstash) {
354 SV *sv = NEWSV(85,0);
356 sv_upgrade(sv, SVt_PVMG);
357 sv_setsv(sv,linestr);
358 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
369 if (oldoldbufptr != last_uni)
371 while (isSPACE(*last_uni))
373 for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ;
374 if ((t = strchr(s, '(')) && t < bufptr)
378 warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni);
385 #define UNI(f) return uni(f,s)
395 last_uni = oldbufptr;
406 #endif /* CRIPPLED_CC */
408 #define LOP(f,x) return lop(f,x,s)
420 last_lop = oldbufptr;
437 nexttype[nexttoke] = type;
439 if (lex_state != LEX_KNOWNEXT) {
440 lex_defer = lex_state;
442 lex_state = LEX_KNOWNEXT;
447 force_word(start,token,check_keyword,allow_pack,allow_tick)
448 register char *start;
457 start = skipspace(start);
460 (allow_pack && *s == ':') ||
461 (allow_tick && *s == '\'') )
463 s = scan_word(s, tokenbuf, allow_pack, &len);
464 if (check_keyword && keyword(tokenbuf, len))
466 if (token == METHOD) {
476 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(tokenbuf,0));
477 nextval[nexttoke].opval->op_private |= OPpCONST_BARE;
489 OP* op = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0));
490 nextval[nexttoke].opval = op;
493 op->op_private = OPpCONST_ENTERED;
495 kind == '$' ? SVt_PV :
496 kind == '@' ? SVt_PVAV :
497 kind == '%' ? SVt_PVHV :
516 s = SvPV_force(sv, len);
520 while (s < send && *s != '\\')
527 if (s + 1 < send && (s[1] == '\\'))
528 s++; /* all that, just for this */
533 SvCUR_set(sv, d - SvPVX(sv));
541 register I32 op_type = yylval.ival;
543 if (op_type == OP_NULL) {
544 yylval.opval = lex_op;
548 if (op_type == OP_CONST || op_type == OP_READLINE) {
549 yylval.opval = (OP*)newSVOP(op_type, 0, q(lex_stuff));
556 SAVEINT(lex_brackets);
557 SAVEINT(lex_fakebrack);
558 SAVEINT(lex_casemods);
563 SAVEINT(curcop->cop_line);
566 SAVEPPTR(oldoldbufptr);
568 SAVEPPTR(lex_brackstack);
569 SAVEPPTR(lex_casestack);
574 bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
575 bufend += SvCUR(linestr);
581 New(899, lex_brackstack, 120, char);
582 New(899, lex_casestack, 12, char);
583 SAVEFREEPV(lex_brackstack);
584 SAVEFREEPV(lex_casestack);
586 *lex_casestack = '\0';
588 lex_state = LEX_INTERPCONCAT;
589 curcop->cop_line = multi_start;
591 lex_inwhat = op_type;
592 if (op_type == OP_MATCH || op_type == OP_SUBST)
600 yylval.opval = lex_op;
613 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0));
617 if (lex_casemods) { /* oops, we've got some unbalanced parens */
618 lex_state = LEX_INTERPCASEMOD;
622 /* Is there a right-hand side to take care of? */
623 if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) {
626 bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
627 bufend += SvCUR(linestr);
633 *lex_casestack = '\0';
635 if (SvCOMPILED(lex_repl)) {
636 lex_state = LEX_INTERPNORMAL;
640 lex_state = LEX_INTERPCONCAT;
646 bufend = SvPVX(linestr);
647 bufend += SvCUR(linestr);
657 register char *send = bufend;
658 SV *sv = NEWSV(93, send - start);
659 register char *s = start;
660 register char *d = SvPVX(sv);
661 bool dorange = FALSE;
665 ? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]} \t\n\r\f\v#"
666 : (lex_inwhat & OP_TRANS)
670 while (s < send || dorange) {
671 if (lex_inwhat == OP_TRANS) {
676 SvGROW(sv, SvLEN(sv) + 256);
680 for (i = (U8)*d; i <= max; i++)
685 else if (*s == '-' && s+1 < send && s != start) {
690 else if (*s == '(' && lex_inpat && s[1] == '?' && s[2] == '#') {
691 while (s < send && *s != ')')
694 else if (*s == '#' && lex_inpat &&
695 ((PMOP*)lex_inpat)->op_pmflags & PMf_EXTENDED) {
696 while (s+1 < send && *s != '\n')
699 else if (*s == '@' && s[1] && (isALNUM(s[1]) || strchr(":'{$", s[1])))
701 else if (*s == '$') {
702 if (!lex_inpat) /* not a regexp, so $ must be var */
704 if (s + 1 < send && !strchr(")| \n\t", s[1]))
705 break; /* in regexp, $ might be tail anchor */
707 if (*s == '\\' && s+1 < send) {
709 if (*s && strchr(leave, *s)) {
714 if (lex_inwhat == OP_SUBST && !lex_inpat &&
715 isDIGIT(*s) && *s != '0' && !isDIGIT(s[1]))
718 warn("\\%c better written as $%c", *s, *s);
722 if (lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) {
728 if (lex_inwhat == OP_TRANS) {
736 case '0': case '1': case '2': case '3':
737 case '4': case '5': case '6': case '7':
738 *d++ = scan_oct(s, 3, &len);
742 *d++ = scan_hex(++s, 2, &len);
780 SvCUR_set(sv, d - SvPVX(sv));
783 if (SvCUR(sv) + 5 < SvLEN(sv)) {
784 SvLEN_set(sv, SvCUR(sv) + 1);
785 Renew(SvPVX(sv), SvLEN(sv), char);
788 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
794 /* This is the one truly awful dwimmer necessary to conflate C and sed. */
801 if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{'))
803 if (*s != '{' && *s != '[')
808 /* In a pattern, so maybe we have {n,m}. */
825 /* On the other hand, maybe we have a character class */
828 if (*s == ']' || *s == '^')
831 int weight = 2; /* let's weigh the evidence */
833 unsigned char un_char = 0, last_un_char;
834 char *send = strchr(s,']');
837 if (!send) /* has to be an expression */
843 else if (isDIGIT(*s)) {
845 if (isDIGIT(s[1]) && s[2] == ']')
851 for (; s < send; s++) {
852 last_un_char = un_char;
853 un_char = (unsigned char)*s;
858 weight -= seen[un_char] * 10;
860 scan_ident(s,send,tmpbuf,FALSE);
861 if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV))
866 else if (*s == '$' && s[1] &&
867 strchr("[#!%*<>()-=",s[1])) {
868 if (/*{*/ strchr("])} =",s[2]))
877 if (strchr("wds]",s[1]))
879 else if (seen['\''] || seen['"'])
881 else if (strchr("rnftbxcav",s[1]))
883 else if (isDIGIT(s[1])) {
885 while (s[1] && isDIGIT(s[1]))
895 if (strchr("aA01! ",last_un_char))
897 if (strchr("zZ79~",s[1]))
901 if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) &&
902 isALPHA(*s) && s[1] && isALPHA(s[1])) {
907 if (keyword(tmpbuf, d - tmpbuf))
910 if (un_char == last_un_char + 1)
912 weight -= seen[un_char];
917 if (weight >= 0) /* probably a character class */
925 intuit_method(start,gv)
929 char *s = start + (*start == '$');
940 s = scan_word(s, tmpbuf, TRUE, &len);
942 if (gv || last_lop_op == OP_PRINT || isUPPER(*tokenbuf))
947 return *s == '(' ? FUNCMETH : METHOD;
949 if (!keyword(tmpbuf, len)) {
950 indirgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVCV);
951 if (indirgv && GvCV(indirgv))
953 /* filehandle or package name makes it a method */
954 if (!gv || GvIO(indirgv) || gv_stashpv(tmpbuf, FALSE)) {
956 nextval[nexttoke].opval =
957 (OP*)newSVOP(OP_CONST, 0,
959 nextval[nexttoke].opval->op_private =
964 return *s == '(' ? FUNCMETH : METHOD;
974 char *pdb = getenv("PERL5DB");
978 return "BEGIN { require 'perl5db.pl' }";
984 /* Encoded script support. filter_add() effectively inserts a
985 * 'pre-processing' function into the current source input stream.
986 * Note that the filter function only applies to the current source file
987 * (e.g., it will not affect files 'require'd or 'use'd by this one).
989 * The datasv parameter (which may be NULL) can be used to pass
990 * private data to this instance of the filter. The filter function
991 * can recover the SV using the FILTER_DATA macro and use it to
992 * store private buffers and state information.
994 * The supplied datasv parameter is upgraded to a PVIO type
995 * and the IoDIRP field is used to store the function pointer.
996 * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for
997 * private use must be set using malloc'd pointers.
999 static int filter_debug = 0;
1002 filter_add(funcp, datasv)
1006 if (!funcp){ /* temporary handy debugging hack to be deleted */
1007 filter_debug = atoi((char*)datasv);
1011 rsfp_filters = newAV();
1014 if (!SvUPGRADE(datasv, SVt_PVIO))
1015 die("Can't upgrade filter_add data to SVt_PVIO");
1016 IoDIRP(datasv) = (DIR*)funcp; /* stash funcp into spare field */
1018 warn("filter_add func %lx (%s)", funcp, SvPV(datasv,na));
1019 av_unshift(rsfp_filters, 1);
1020 av_store(rsfp_filters, 0, datasv) ;
1025 /* Delete most recently added instance of this filter function. */
1031 warn("filter_del func %lx", funcp);
1032 if (!rsfp_filters || AvFILL(rsfp_filters)<0)
1034 /* if filter is on top of stack (usual case) just pop it off */
1035 if (IoDIRP(FILTER_DATA(0)) == (void*)funcp){
1036 /* sv_free(av_pop(rsfp_filters)); */
1037 sv_free(av_shift(rsfp_filters));
1041 /* we need to search for the correct entry and clear it */
1042 die("filter_del can only delete in reverse order (currently)");
1046 /* Invoke the n'th filter function for the current rsfp. */
1048 filter_read(idx, buf_sv, maxlen)
1051 int maxlen; /* 0 = read one text line */
1058 if (idx > AvFILL(rsfp_filters)){ /* Any more filters? */
1059 /* Provide a default input filter to make life easy. */
1060 /* Note that we append to the line. This is handy. */
1062 warn("filter_read %d: from rsfp\n", idx);
1066 int old_len = SvCUR(buf_sv) ;
1068 /* ensure buf_sv is large enough */
1069 SvGROW(buf_sv, old_len + maxlen) ;
1070 if ((len = fread(SvPVX(buf_sv) + old_len, 1, maxlen, rsfp)) <= 0){
1072 return -1; /* error */
1074 return 0 ; /* end of file */
1076 SvCUR_set(buf_sv, old_len + len) ;
1079 if (sv_gets(buf_sv, rsfp, SvCUR(buf_sv)) == NULL) {
1081 return -1; /* error */
1083 return 0 ; /* end of file */
1086 return SvCUR(buf_sv);
1088 /* Skip this filter slot if filter has been deleted */
1089 if ( (datasv = FILTER_DATA(idx)) == &sv_undef){
1091 warn("filter_read %d: skipped (filter deleted)\n", idx);
1092 return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */
1094 /* Get function pointer hidden within datasv */
1095 funcp = (filter_t)IoDIRP(datasv);
1097 warn("filter_read %d: via function %lx (%s)\n",
1098 idx, funcp, SvPV(datasv,na));
1099 /* Call function. The function is expected to */
1100 /* call "FILTER_READ(idx+1, buf_sv)" first. */
1101 /* Return: <0:error, =0:eof, >0:not eof */
1102 return (*funcp)(idx, buf_sv, maxlen);
1112 SvCUR_set(sv, 0); /* start with empty line */
1113 if (FILTER_READ(0, sv, 0) > 0)
1114 return ( SvPVX(sv) ) ;
1119 return (sv_gets(sv, fp, 0)) ;
1125 static char* exp_name[] =
1126 { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "TERMBLOCK" };
1129 extern int yychar; /* last token */
1139 switch (lex_state) {
1141 case LEX_NORMAL: /* Some compilers will produce faster */
1142 case LEX_INTERPNORMAL: /* code if we comment these out. */
1148 yylval = nextval[nexttoke];
1150 lex_state = lex_defer;
1151 expect = lex_expect;
1152 lex_defer = LEX_NORMAL;
1154 return(nexttype[nexttoke]);
1156 case LEX_INTERPCASEMOD:
1158 if (bufptr != bufend && *bufptr != '\\')
1159 croak("panic: INTERPCASEMOD");
1161 if (bufptr == bufend || bufptr[1] == 'E') {
1164 oldmod = lex_casestack[--lex_casemods];
1165 lex_casestack[lex_casemods] = '\0';
1166 if (bufptr != bufend && strchr("LUQ", oldmod)) {
1168 lex_state = LEX_INTERPCONCAT;
1172 if (bufptr != bufend)
1174 lex_state = LEX_INTERPCONCAT;
1179 if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3))
1180 tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */
1181 if (strchr("LU", *s) &&
1182 (strchr(lex_casestack, 'L') || strchr(lex_casestack, 'U')))
1184 lex_casestack[--lex_casemods] = '\0';
1187 if (lex_casemods > 10) {
1188 char* newlb = (char*)realloc(lex_casestack, lex_casemods + 2);
1189 if (newlb != lex_casestack) {
1191 lex_casestack = newlb;
1194 lex_casestack[lex_casemods++] = *s;
1195 lex_casestack[lex_casemods] = '\0';
1196 lex_state = LEX_INTERPCONCAT;
1197 nextval[nexttoke].ival = 0;
1200 nextval[nexttoke].ival = OP_LCFIRST;
1202 nextval[nexttoke].ival = OP_UCFIRST;
1204 nextval[nexttoke].ival = OP_LC;
1206 nextval[nexttoke].ival = OP_UC;
1208 nextval[nexttoke].ival = OP_QUOTEMETA;
1210 croak("panic: yylex");
1222 case LEX_INTERPSTART:
1223 if (bufptr == bufend)
1224 return sublex_done();
1226 lex_dojoin = (*bufptr == '@');
1227 lex_state = LEX_INTERPNORMAL;
1229 nextval[nexttoke].ival = 0;
1231 force_ident("\"", '$');
1232 nextval[nexttoke].ival = 0;
1234 nextval[nexttoke].ival = 0;
1236 nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */
1247 case LEX_INTERPENDMAYBE:
1248 if (intuit_more(bufptr)) {
1249 lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */
1257 lex_state = LEX_INTERPCONCAT;
1261 case LEX_INTERPCONCAT:
1264 croak("panic: INTERPCONCAT");
1266 if (bufptr == bufend)
1267 return sublex_done();
1269 if (SvIVX(linestr) == '\'') {
1270 SV *sv = newSVsv(linestr);
1273 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
1277 s = scan_const(bufptr);
1279 lex_state = LEX_INTERPCASEMOD;
1281 lex_state = LEX_INTERPSTART;
1285 nextval[nexttoke] = yylval;
1298 lex_state = LEX_NORMAL;
1299 s = scan_formline(bufptr);
1306 oldoldbufptr = oldbufptr;
1309 fprintf(stderr,"### Tokener expecting %s at %s\n", exp_name[expect], s);
1315 warn("Unrecognized character \\%03o ignored", *s++ & 255);
1319 goto fake_eof; /* emulate EOF on ^D or ^Z */
1323 yyerror("Missing right bracket");
1327 goto retry; /* ignore stray nulls */
1330 if (!in_eval && !preambled) {
1332 sv_setpv(linestr,incl_perldb());
1334 sv_catpv(linestr,";");
1336 while(AvFILL(preambleav) >= 0) {
1337 SV *tmpsv = av_shift(preambleav);
1338 sv_catsv(linestr, tmpsv);
1339 sv_catpv(linestr, ";");
1342 sv_free((SV*)preambleav);
1345 if (minus_n || minus_p) {
1346 sv_catpv(linestr, "LINE: while (<>) {");
1348 sv_catpv(linestr,"chomp;");
1352 if ( splitstr[0] == '/' ||
1353 splitstr[0] == '\'' ||
1354 splitstr[0] == '"' )
1355 sprintf( tmpbuf1, "@F=split(%s);", splitstr );
1357 sprintf( tmpbuf1, "@F=split('%s');", splitstr );
1358 sv_catpv(linestr,tmpbuf1);
1361 sv_catpv(linestr,"@F=split(' ');");
1364 sv_catpv(linestr, "\n");
1365 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1366 bufend = SvPVX(linestr) + SvCUR(linestr);
1367 if (perldb && curstash != debstash) {
1368 SV *sv = NEWSV(85,0);
1370 sv_upgrade(sv, SVt_PVMG);
1371 sv_setsv(sv,linestr);
1372 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1377 if ((s = filter_gets(linestr, rsfp)) == Nullch) {
1380 if (preprocess && !in_eval)
1381 (void)my_pclose(rsfp);
1382 else if ((FILE*)rsfp == stdin)
1388 if (!in_eval && (minus_n || minus_p)) {
1389 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
1390 sv_catpv(linestr,";}");
1391 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1392 bufend = SvPVX(linestr) + SvCUR(linestr);
1393 minus_n = minus_p = 0;
1396 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1397 sv_setpv(linestr,"");
1398 TOKEN(';'); /* not infinite loop because rsfp is NULL now */
1401 if (*s == '#' && s[1] == '!' && instr(s,"perl"))
1404 /* Incest with pod. */
1405 if (*s == '=' && strnEQ(s, "=cut", 4)) {
1406 sv_setpv(linestr, "");
1407 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1408 bufend = SvPVX(linestr) + SvCUR(linestr);
1413 } while (doextract);
1414 oldoldbufptr = oldbufptr = bufptr = s;
1415 if (perldb && curstash != debstash) {
1416 SV *sv = NEWSV(85,0);
1418 sv_upgrade(sv, SVt_PVMG);
1419 sv_setsv(sv,linestr);
1420 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1422 bufend = SvPVX(linestr) + SvCUR(linestr);
1423 if (curcop->cop_line == 1) {
1424 while (s < bufend && isSPACE(*s))
1426 if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */
1428 if (!in_eval && *s == '#' && s[1] == '!') {
1429 d = instr(s,"perl -");
1431 d = instr(s,"perl");
1434 !instr(s,"indir") &&
1435 instr(origargv[0],"perl"))
1444 while (s < bufend && !isSPACE(*s))
1447 while (s < bufend && isSPACE(*s))
1450 Newz(899,newargv,origargc+3,char*);
1452 while (s < bufend && !isSPACE(*s))
1455 Copy(origargv+1, newargv+2, origargc+1, char*);
1461 croak("Can't exec %s", cmd);
1464 int oldpdb = perldb;
1468 while (*d && !isSPACE(*d)) d++;
1469 while (*d == ' ') d++;
1472 while (d = moreswitches(d)) ;
1473 if (perldb && !oldpdb ||
1477 sv_setpv(linestr, "");
1478 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1479 bufend = SvPVX(linestr) + SvCUR(linestr);
1482 (void)gv_fetchfile(origfilename);
1489 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1491 lex_state = LEX_FORMLINE;
1495 case ' ': case '\t': case '\f': case '\r': case 013:
1500 if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) {
1502 while (s < d && *s != '\n')
1507 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1509 lex_state = LEX_FORMLINE;
1519 if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) {
1524 while (s < bufend && (*s == ' ' || *s == '\t'))
1527 if (strnEQ(s,"=>",2)) {
1529 warn("Ambiguous use of -%c => resolved to \"-%c\" =>",
1531 s = force_word(bufptr,WORD,FALSE,FALSE,FALSE);
1532 OPERATOR('-'); /* unary minus */
1534 last_uni = oldbufptr;
1535 last_lop_op = OP_FTEREAD; /* good enough */
1537 case 'r': FTST(OP_FTEREAD);
1538 case 'w': FTST(OP_FTEWRITE);
1539 case 'x': FTST(OP_FTEEXEC);
1540 case 'o': FTST(OP_FTEOWNED);
1541 case 'R': FTST(OP_FTRREAD);
1542 case 'W': FTST(OP_FTRWRITE);
1543 case 'X': FTST(OP_FTREXEC);
1544 case 'O': FTST(OP_FTROWNED);
1545 case 'e': FTST(OP_FTIS);
1546 case 'z': FTST(OP_FTZERO);
1547 case 's': FTST(OP_FTSIZE);
1548 case 'f': FTST(OP_FTFILE);
1549 case 'd': FTST(OP_FTDIR);
1550 case 'l': FTST(OP_FTLINK);
1551 case 'p': FTST(OP_FTPIPE);
1552 case 'S': FTST(OP_FTSOCK);
1553 case 'u': FTST(OP_FTSUID);
1554 case 'g': FTST(OP_FTSGID);
1555 case 'k': FTST(OP_FTSVTX);
1556 case 'b': FTST(OP_FTBLK);
1557 case 'c': FTST(OP_FTCHR);
1558 case 't': FTST(OP_FTTTY);
1559 case 'T': FTST(OP_FTTEXT);
1560 case 'B': FTST(OP_FTBINARY);
1561 case 'M': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTMTIME);
1562 case 'A': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTATIME);
1563 case 'C': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTCTIME);
1565 croak("Unrecognized file test: -%c", tmp);
1572 if (expect == XOPERATOR)
1577 else if (*s == '>') {
1580 if (isIDFIRST(*s)) {
1581 s = force_word(s,METHOD,FALSE,TRUE,FALSE);
1589 if (expect == XOPERATOR)
1592 if (isSPACE(*s) || !isSPACE(*bufptr))
1594 OPERATOR('-'); /* unary minus */
1601 if (expect == XOPERATOR)
1606 if (expect == XOPERATOR)
1609 if (isSPACE(*s) || !isSPACE(*bufptr))
1615 if (expect != XOPERATOR) {
1616 s = scan_ident(s, bufend, tokenbuf, TRUE);
1618 force_ident(tokenbuf, '*');
1631 if (expect != XOPERATOR) {
1632 s = scan_ident(s, bufend, tokenbuf + 1, TRUE);
1637 if (strchr(tokenbuf,':'))
1638 croak(no_myglob,tokenbuf);
1639 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1640 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
1641 force_next(PRIVATEREF);
1644 if (!strchr(tokenbuf,':')) {
1645 if (tmp = pad_findmy(tokenbuf)) {
1646 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1647 nextval[nexttoke].opval->op_targ = tmp;
1648 force_next(PRIVATEREF);
1652 force_ident(tokenbuf + 1, *tokenbuf);
1680 if (last_lop == oldoldbufptr || last_uni == oldoldbufptr)
1681 oldbufptr = oldoldbufptr; /* allow print(STDOUT 123) */
1686 if (curcop->cop_line < copline)
1687 copline = curcop->cop_line;
1698 if (lex_brackets <= 0)
1699 yyerror("Unmatched right bracket");
1702 if (lex_state == LEX_INTERPNORMAL) {
1703 if (lex_brackets == 0) {
1704 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
1705 lex_state = LEX_INTERPEND;
1712 if (lex_brackets > 100) {
1713 char* newlb = (char*)realloc(lex_brackstack, lex_brackets + 1);
1714 if (newlb != lex_brackstack) {
1716 lex_brackstack = newlb;
1721 if (lex_formbrack) {
1725 if (oldoldbufptr == last_lop)
1726 lex_brackstack[lex_brackets++] = XTERM;
1728 lex_brackstack[lex_brackets++] = XOPERATOR;
1729 OPERATOR(HASHBRACK);
1732 while (s < bufend && (*s == ' ' || *s == '\t'))
1734 if (s < bufend && isALPHA(*s)) {
1735 d = scan_word(s, tokenbuf, FALSE, &len);
1736 while (d < bufend && (*d == ' ' || *d == '\t'))
1740 (keyword(tokenbuf, len) ||
1741 perl_get_cv(tokenbuf, FALSE) ))
1742 warn("Ambiguous use of {%s} resolved to {\"%s\"}",
1743 tokenbuf, tokenbuf);
1744 s = force_word(s,WORD,FALSE,TRUE,FALSE);
1749 lex_brackstack[lex_brackets++] = XSTATE;
1753 lex_brackstack[lex_brackets++] = XOPERATOR;
1758 if (oldoldbufptr == last_lop)
1759 lex_brackstack[lex_brackets++] = XTERM;
1761 lex_brackstack[lex_brackets++] = XOPERATOR;
1764 OPERATOR(HASHBRACK);
1766 for (t = s; t < bufend && isALNUM(*t); t++) ;
1768 else if (*s == '\'' || *s == '"') {
1775 while (t < bufend && isSPACE(*t))
1777 if ((*t == ',' && !isLOWER(*s)) || (*t == '=' && t[1] == '>'))
1778 OPERATOR(HASHBRACK);
1782 lex_brackstack[lex_brackets-1] = XSTATE;
1788 yylval.ival = curcop->cop_line;
1789 if (isSPACE(*s) || *s == '#')
1790 copline = NOLINE; /* invalidate current command line number */
1795 if (lex_brackets <= 0)
1796 yyerror("Unmatched right bracket");
1798 expect = (expectation)lex_brackstack[--lex_brackets];
1799 if (lex_brackets < lex_formbrack)
1801 if (lex_state == LEX_INTERPNORMAL) {
1802 if (lex_brackets == 0) {
1803 if (lex_fakebrack) {
1804 lex_state = LEX_INTERPEND;
1806 return yylex(); /* ignore fake brackets */
1808 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
1809 lex_state = LEX_INTERPEND;
1812 if (lex_brackets < lex_fakebrack) {
1815 return yylex(); /* ignore fake brackets */
1825 if (expect == XOPERATOR) {
1826 if (dowarn && isALPHA(*s) && bufptr == SvPVX(linestr)) {
1834 s = scan_ident(s-1, bufend, tokenbuf, TRUE);
1837 force_ident(tokenbuf, '&');
1841 yylval.ival = (OPpENTERSUB_AMPER<<8);
1860 if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp))
1861 warn("Reversed %c= operator",tmp);
1863 if (expect == XSTATE && isALPHA(tmp) &&
1864 (s == SvPVX(linestr)+1 || s[-2] == '\n') )
1870 if (lex_brackets < lex_formbrack) {
1872 for (t = s; *t == ' ' || *t == '\t'; t++) ;
1873 if (*t == '\n' || *t == '#') {
1891 if (expect != XOPERATOR) {
1892 if (s[1] != '<' && !strchr(s,'>'))
1895 s = scan_heredoc(s);
1897 s = scan_inputsymbol(s);
1898 TERM(sublex_start());
1903 SHop(OP_LEFT_SHIFT);
1917 SHop(OP_RIGHT_SHIFT);
1924 if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) {
1925 s = scan_ident(s+1, bufend, tokenbuf+1, FALSE);
1926 if (expect == XOPERATOR) {
1927 if (lex_formbrack && lex_brackets == lex_formbrack) {
1930 return ','; /* grandfather non-comma-format format */
1933 no_op("Array length",s);
1935 else if (!tokenbuf[1])
1937 if (!strchr(tokenbuf+1,':')) {
1939 if (tmp = pad_findmy(tokenbuf)) {
1940 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1941 nextval[nexttoke].opval->op_targ = tmp;
1943 force_next(PRIVATEREF);
1948 force_ident(tokenbuf+1, *tokenbuf);
1951 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
1952 if (expect == XOPERATOR) {
1953 if (lex_formbrack && lex_brackets == lex_formbrack) {
1956 return ','; /* grandfather non-comma-format format */
1962 expectation oldexpect = expect;
1964 /* This kludge not intended to be bulletproof. */
1965 if (tokenbuf[1] == '[' && !tokenbuf[2]) {
1966 yylval.opval = newSVOP(OP_CONST, 0,
1967 newSViv((IV)compiling.cop_arybase));
1968 yylval.opval->op_private = OPpCONST_ARYBASE;
1974 if (*s == '[' && oldexpect != XREF) {
1975 for (t = s+1; isSPACE(*t) || isALNUM(*t) || *t == '$'; t++) ;
1977 bufptr = skipspace(bufptr);
1978 while (t < bufend && *t != ']') t++;
1979 warn("Multidimensional syntax %.*s not supported",
1980 t-bufptr+1, bufptr);
1983 if (*s == '{' && strEQ(tokenbuf, "$SIG") &&
1984 (t = strchr(s,'}')) && (t = strchr(t,'='))) {
1987 for (t++; isSPACE(*t); t++) ;
1988 if (isIDFIRST(*t)) {
1989 t = scan_word(t, tmpbuf, TRUE, &len);
1990 if (*t != '(' && perl_get_cv(tmpbuf, FALSE))
1991 warn("You need to quote \"%s\"", tmpbuf);
1996 if (lex_state == LEX_NORMAL && isSPACE(*s)) {
1997 bool islop = (last_lop == oldoldbufptr);
1999 if (!islop || last_lop_op == OP_GREPSTART)
2001 else if (strchr("$@\"'`q", *s))
2002 expect = XTERM; /* e.g. print $fh "foo" */
2003 else if (strchr("&*<%", *s) && isIDFIRST(s[1]))
2004 expect = XTERM; /* e.g. print $fh &sub */
2005 else if (isDIGIT(*s))
2006 expect = XTERM; /* e.g. print $fh 3 */
2007 else if (*s == '.' && isDIGIT(s[1]))
2008 expect = XTERM; /* e.g. print $fh .3 */
2009 else if (strchr("/?-+", *s) && !isSPACE(s[1]))
2010 expect = XTERM; /* e.g. print $fh -1 */
2011 else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]))
2012 expect = XTERM; /* print $fh <<"EOF" */
2015 if (strchr(tokenbuf,':'))
2016 croak(no_myglob,tokenbuf);
2017 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2018 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
2019 force_next(PRIVATEREF);
2021 else if (!strchr(tokenbuf,':')) {
2022 if (oldexpect != XREF || oldoldbufptr == last_lop) {
2023 if (intuit_more(s)) {
2030 if (tmp = pad_findmy(tokenbuf)) {
2031 if (!tokenbuf[2] && *tokenbuf =='$' &&
2032 tokenbuf[1] <= 'b' && tokenbuf[1] >= 'a')
2034 for (d = in_eval ? oldoldbufptr : SvPVX(linestr);
2035 d < bufend && *d != '\n';
2038 if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) {
2039 croak("Can't use \"my %s\" in sort comparison",
2044 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2045 nextval[nexttoke].opval->op_targ = tmp;
2046 force_next(PRIVATEREF);
2049 force_ident(tokenbuf+1, *tokenbuf);
2052 force_ident(tokenbuf+1, *tokenbuf);
2056 yyerror("Final $ should be \\$ or $name");
2062 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
2063 if (expect == XOPERATOR)
2071 if (strchr(tokenbuf,':'))
2072 croak(no_myglob,tokenbuf);
2073 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2074 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
2075 force_next(PRIVATEREF);
2078 else if (!strchr(tokenbuf,':')) {
2079 if (intuit_more(s)) {
2083 if (tmp = pad_findmy(tokenbuf)) {
2084 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2085 nextval[nexttoke].opval->op_targ = tmp;
2086 force_next(PRIVATEREF);
2091 /* Force them to make up their mind on "@foo". */
2092 if (lex_state != LEX_NORMAL && !lex_brackets &&
2093 ( !(gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV)) ||
2099 sprintf(tmpbuf, "Literal @%s now requires backslash",tokenbuf+1);
2103 /* Warn about @ where they meant $. */
2105 if (*s == '[' || *s == '{') {
2107 while (*t && (isALNUM(*t) || strchr(" \t$#+-'\"", *t)))
2109 if (*t == '}' || *t == ']') {
2111 bufptr = skipspace(bufptr);
2112 warn("Scalar value %.*s better written as $%.*s",
2113 t-bufptr, bufptr, t-bufptr-1, bufptr+1);
2117 force_ident(tokenbuf+1, *tokenbuf);
2121 yyerror("Final @ should be \\@ or @name");
2126 case '/': /* may either be division or pattern */
2127 case '?': /* may either be conditional or pattern */
2128 if (expect != XOPERATOR) {
2131 TERM(sublex_start());
2139 if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' &&
2140 (s == SvPVX(linestr) || s[-1] == '\n') ) {
2145 if (expect == XOPERATOR || !isDIGIT(s[1])) {
2151 yylval.ival = OPf_SPECIAL;
2157 if (expect != XOPERATOR)
2162 case '0': case '1': case '2': case '3': case '4':
2163 case '5': case '6': case '7': case '8': case '9':
2165 if (expect == XOPERATOR)
2171 if (expect == XOPERATOR) {
2172 if (lex_formbrack && lex_brackets == lex_formbrack) {
2175 return ','; /* grandfather non-comma-format format */
2181 missingterm((char*)0);
2182 yylval.ival = OP_CONST;
2183 TERM(sublex_start());
2187 if (expect == XOPERATOR) {
2188 if (lex_formbrack && lex_brackets == lex_formbrack) {
2191 return ','; /* grandfather non-comma-format format */
2197 missingterm((char*)0);
2198 yylval.ival = OP_CONST;
2199 for (d = SvPV(lex_stuff, len); len; len--, d++) {
2200 if (*d == '$' || *d == '@' || *d == '\\') {
2201 yylval.ival = OP_STRINGIFY;
2205 TERM(sublex_start());
2209 if (expect == XOPERATOR)
2210 no_op("Backticks",s);
2212 missingterm((char*)0);
2213 yylval.ival = OP_BACKTICK;
2215 TERM(sublex_start());
2219 if (dowarn && lex_inwhat && isDIGIT(*s))
2220 warn("Can't use \\%c to mean $%c in expression", *s, *s);
2221 if (expect == XOPERATOR)
2222 no_op("Backslash",s);
2226 if (isDIGIT(s[1]) && expect == XOPERATOR) {
2262 s = scan_word(s, tokenbuf, FALSE, &len);
2264 if (*s == ':' && s[1] == ':' && strNE(tokenbuf, "CORE"))
2267 tmp = keyword(tokenbuf, len);
2269 /* Is this a word before a => operator? */
2271 while (d < bufend && (*d == ' ' || *d == '\t'))
2272 d++; /* no comments skipped here, or s### is misparsed */
2273 if (strnEQ(d,"=>",2)) {
2275 if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE)))
2276 warn("Ambiguous use of %s => resolved to \"%s\" =>",
2277 tokenbuf, tokenbuf);
2278 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2279 yylval.opval->op_private = OPpCONST_BARE;
2283 if (tmp < 0) { /* second-class keyword? */
2285 if (expect != XOPERATOR &&
2286 (*s != ':' || s[1] != ':') &&
2287 (gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV)) &&
2288 (GvFLAGS(gv) & GVf_IMPORTED) &&
2300 default: /* not a keyword */
2303 char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]);
2305 /* Get the rest if it looks like a package qualifier */
2307 if (*s == '\'' || *s == ':' && s[1] == ':') {
2308 s = scan_word(s, tokenbuf + len, TRUE, &len);
2310 croak("Bad name after %s::", tokenbuf);
2313 /* Do special processing at start of statement. */
2315 if (expect == XSTATE) {
2316 while (isSPACE(*s)) s++;
2317 if (*s == ':') { /* It's a label. */
2318 yylval.pval = savepv(tokenbuf);
2324 else if (expect == XOPERATOR) {
2325 if (bufptr == SvPVX(linestr)) {
2331 no_op("Bare word",s);
2334 /* Look for a subroutine with this name in current package. */
2336 gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV);
2338 /* Presume this is going to be a bareword of some sort. */
2341 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2342 yylval.opval->op_private = OPpCONST_BARE;
2344 /* See if it's the indirect object for a list operator. */
2347 oldoldbufptr < bufptr &&
2348 (oldoldbufptr == last_lop || oldoldbufptr == last_uni) &&
2349 /* NO SKIPSPACE BEFORE HERE! */
2351 (opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) )
2353 bool immediate_paren = *s == '(';
2355 /* (Now we can afford to cross potential line boundary.) */
2358 /* Two barewords in a row may indicate method call. */
2360 if ((isALPHA(*s) || *s == '$') && (tmp=intuit_method(s,gv)))
2363 /* If not a declared subroutine, it's an indirect object. */
2364 /* (But it's an indir obj regardless for sort.) */
2366 if ((last_lop_op == OP_SORT ||
2367 (!immediate_paren && (!gv || !GvCV(gv))) ) &&
2368 (last_lop_op != OP_MAPSTART && last_lop_op != OP_GREPSTART)){
2369 expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR;
2374 /* If followed by a paren, it's certainly a subroutine. */
2380 nextval[nexttoke].opval = yylval.opval;
2387 /* If followed by var or block, call it a method (unless sub) */
2389 if ((*s == '$' || *s == '{') && (!gv || !GvCV(gv))) {
2390 last_lop = oldbufptr;
2391 last_lop_op = OP_METHOD;
2395 /* If followed by a bareword, see if it looks like indir obj. */
2397 if ((isALPHA(*s) || *s == '$') && (tmp = intuit_method(s,gv)))
2400 /* Not a method, so call it a subroutine (if defined) */
2402 if (gv && GvCV(gv)) {
2404 nextval[nexttoke].opval = yylval.opval;
2411 if (lastchar == '-')
2412 warn("Ambiguous use of -%s resolved as -&%s()",
2413 tokenbuf, tokenbuf);
2414 last_lop = oldbufptr;
2415 last_lop_op = OP_ENTERSUB;
2416 /* Is there a prototype? */
2419 char *proto = SvPV((SV*)cv, len);
2422 if (strEQ(proto, "$"))
2424 if (*proto == '&' && *s == '{') {
2425 sv_setpv(subname,"__ANON__");
2434 if (hints & HINT_STRICT_SUBS &&
2437 last_lop_op != OP_ACCEPT &&
2438 last_lop_op != OP_PIPE_OP &&
2439 last_lop_op != OP_SOCKPAIR)
2442 "Bareword \"%s\" not allowed while \"strict subs\" in use",
2447 /* Call it a bare word */
2451 if (lastchar != '-') {
2452 for (d = tokenbuf; *d && isLOWER(*d); d++) ;
2454 warn(warn_reserved, tokenbuf);
2457 if (lastchar && strchr("*%&", lastchar)) {
2458 warn("Operator or semicolon missing before %c%s",
2459 lastchar, tokenbuf);
2460 warn("Ambiguous use of %c resolved as operator %c",
2461 lastchar, lastchar);
2467 case KEY___FILE__: {
2468 if (tokenbuf[2] == 'L')
2469 (void)sprintf(tokenbuf,"%ld",(long)curcop->cop_line);
2471 strcpy(tokenbuf, SvPVX(GvSV(curcop->cop_filegv)));
2472 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2481 if (!in_eval || tokenbuf[2] == 'D') {
2483 char *pname = "main";
2484 if (tokenbuf[2] == 'D')
2485 pname = HvNAME(curstash ? curstash : defstash);
2486 sprintf(dname,"%s::DATA", pname);
2487 gv = gv_fetchpv(dname,TRUE, SVt_PVIO);
2490 GvIOp(gv) = newIO();
2491 IoIFP(GvIOp(gv)) = rsfp;
2492 #if defined(HAS_FCNTL) && defined(F_SETFD)
2494 int fd = fileno(rsfp);
2495 fcntl(fd,F_SETFD,fd >= 3);
2499 IoTYPE(GvIOp(gv)) = '|';
2500 else if ((FILE*)rsfp == stdin)
2501 IoTYPE(GvIOp(gv)) = '-';
2503 IoTYPE(GvIOp(gv)) = '<';
2513 if (expect == XSTATE) {
2520 if (*s == ':' && s[1] == ':') {
2523 s = scan_word(s, tokenbuf, FALSE, &len);
2524 tmp = keyword(tokenbuf, len);
2538 LOP(OP_ACCEPT,XTERM);
2544 LOP(OP_ATAN2,XTERM);
2553 LOP(OP_BLESS,XTERM);
2562 (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */
2582 LOP(OP_CRYPT,XTERM);
2586 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
2587 if (*d != '0' && isDIGIT(*d))
2588 yywarn("chmod: mode argument is missing initial 0");
2590 LOP(OP_CHMOD,XTERM);
2593 LOP(OP_CHOWN,XTERM);
2596 LOP(OP_CONNECT,XTERM);
2612 s = force_word(s,WORD,FALSE,TRUE,FALSE);
2616 hints |= HINT_BLOCK_SCOPE;
2626 gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV);
2627 LOP(OP_DBMOPEN,XTERM);
2633 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2640 yylval.ival = curcop->cop_line;
2654 expect = (*s == '{') ? XTERMBLOCK : XTERM;
2655 UNIBRACK(OP_ENTEREVAL);
2670 case KEY_endhostent:
2676 case KEY_endservent:
2679 case KEY_endprotoent:
2690 yylval.ival = curcop->cop_line;
2691 while (s < bufend && isSPACE(*s))
2694 croak("Missing $ on loop variable");
2698 LOP(OP_FORMLINE,XTERM);
2704 LOP(OP_FCNTL,XTERM);
2710 LOP(OP_FLOCK,XTERM);
2719 LOP(OP_GREPSTART, *s == '(' ? XTERM : XREF);
2722 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2737 case KEY_getpriority:
2738 LOP(OP_GETPRIORITY,XTERM);
2740 case KEY_getprotobyname:
2743 case KEY_getprotobynumber:
2744 LOP(OP_GPBYNUMBER,XTERM);
2746 case KEY_getprotoent:
2758 case KEY_getpeername:
2759 UNI(OP_GETPEERNAME);
2761 case KEY_gethostbyname:
2764 case KEY_gethostbyaddr:
2765 LOP(OP_GHBYADDR,XTERM);
2767 case KEY_gethostent:
2770 case KEY_getnetbyname:
2773 case KEY_getnetbyaddr:
2774 LOP(OP_GNBYADDR,XTERM);
2779 case KEY_getservbyname:
2780 LOP(OP_GSBYNAME,XTERM);
2782 case KEY_getservbyport:
2783 LOP(OP_GSBYPORT,XTERM);
2785 case KEY_getservent:
2788 case KEY_getsockname:
2789 UNI(OP_GETSOCKNAME);
2791 case KEY_getsockopt:
2792 LOP(OP_GSOCKOPT,XTERM);
2814 yylval.ival = curcop->cop_line;
2818 LOP(OP_INDEX,XTERM);
2824 LOP(OP_IOCTL,XTERM);
2836 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2868 LOP(OP_LISTEN,XTERM);
2875 TERM(sublex_start());
2878 LOP(OP_MAPSTART,XREF);
2881 LOP(OP_MKDIR,XTERM);
2884 LOP(OP_MSGCTL,XTERM);
2887 LOP(OP_MSGGET,XTERM);
2890 LOP(OP_MSGRCV,XTERM);
2893 LOP(OP_MSGSND,XTERM);
2901 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2908 if (expect != XSTATE)
2909 yyerror("\"no\" not allowed in expression");
2910 s = force_word(s,WORD,FALSE,TRUE,FALSE);
2919 if (isIDFIRST(*s)) {
2921 for (d = s; isALNUM(*d); d++) ;
2923 if (strchr("|&*+-=!?:.", *t))
2924 warn("Precedence problem: open %.*s should be open(%.*s)",
2930 yylval.ival = OP_OR;
2940 LOP(OP_OPEN_DIR,XTERM);
2943 checkcomma(s,tokenbuf,"filehandle");
2947 checkcomma(s,tokenbuf,"filehandle");
2966 s = force_word(s,WORD,FALSE,TRUE,FALSE);
2970 LOP(OP_PIPE_OP,XTERM);
2975 missingterm((char*)0);
2976 yylval.ival = OP_CONST;
2977 TERM(sublex_start());
2985 missingterm((char*)0);
2987 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff));
2991 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(" ",1));
2994 yylval.ival = OP_SPLIT;
2998 last_lop = oldbufptr;
2999 last_lop_op = OP_SPLIT;
3005 missingterm((char*)0);
3006 yylval.ival = OP_STRINGIFY;
3007 if (SvIVX(lex_stuff) == '\'')
3008 SvIVX(lex_stuff) = 0; /* qq'$foo' should intepolate */
3009 TERM(sublex_start());
3014 missingterm((char*)0);
3015 yylval.ival = OP_BACKTICK;
3017 TERM(sublex_start());
3024 s = force_word(s,WORD,TRUE,TRUE,FALSE);
3025 if (isIDFIRST(*tokenbuf))
3026 gv_stashpv(tokenbuf, TRUE);
3028 yyerror("<> should be quotes");
3035 s = force_word(s,WORD,TRUE,FALSE,FALSE);
3039 LOP(OP_RENAME,XTERM);
3048 LOP(OP_RINDEX,XTERM);
3071 LOP(OP_REVERSE,XTERM);
3082 TERM(sublex_start());
3084 TOKEN(1); /* force error */
3093 LOP(OP_SELECT,XTERM);
3099 LOP(OP_SEMCTL,XTERM);
3102 LOP(OP_SEMGET,XTERM);
3105 LOP(OP_SEMOP,XTERM);
3111 LOP(OP_SETPGRP,XTERM);
3113 case KEY_setpriority:
3114 LOP(OP_SETPRIORITY,XTERM);
3116 case KEY_sethostent:
3122 case KEY_setservent:
3125 case KEY_setprotoent:
3135 LOP(OP_SEEKDIR,XTERM);
3137 case KEY_setsockopt:
3138 LOP(OP_SSOCKOPT,XTERM);
3144 LOP(OP_SHMCTL,XTERM);
3147 LOP(OP_SHMGET,XTERM);
3150 LOP(OP_SHMREAD,XTERM);
3153 LOP(OP_SHMWRITE,XTERM);
3156 LOP(OP_SHUTDOWN,XTERM);
3165 LOP(OP_SOCKET,XTERM);
3167 case KEY_socketpair:
3168 LOP(OP_SOCKPAIR,XTERM);
3171 checkcomma(s,tokenbuf,"subroutine name");
3173 if (*s == ';' || *s == ')') /* probably a close */
3174 croak("sort is now a reserved word");
3176 s = force_word(s,WORD,TRUE,TRUE,TRUE);
3180 LOP(OP_SPLIT,XTERM);
3183 LOP(OP_SPRINTF,XTERM);
3186 LOP(OP_SPLICE,XTERM);
3202 LOP(OP_SUBSTR,XTERM);
3209 if (isIDFIRST(*s) || *s == '\'' || *s == ':') {
3212 d = scan_word(s, tmpbuf, TRUE, &len);
3213 if (strchr(tmpbuf, ':'))
3214 sv_setpv(subname, tmpbuf);
3216 sv_setsv(subname,curstname);
3217 sv_catpvn(subname,"::",2);
3218 sv_catpvn(subname,tmpbuf,len);
3220 s = force_word(s,WORD,FALSE,TRUE,TRUE);
3224 expect = XTERMBLOCK;
3225 sv_setpv(subname,"?");
3228 if (tmp == KEY_format) {
3231 lex_formbrack = lex_brackets + 1;
3235 /* Look for a prototype */
3240 SvREFCNT_dec(lex_stuff);
3242 croak("Prototype not terminated");
3245 nextval[1] = nextval[0];
3246 nexttype[1] = nexttype[0];
3247 nextval[0].opval = (OP*)newSVOP(OP_CONST, 0, lex_stuff);
3248 nexttype[0] = THING;
3249 if (nexttoke == 1) {
3250 lex_defer = lex_state;
3251 lex_expect = expect;
3252 lex_state = LEX_KNOWNEXT;
3257 if (*SvPV(subname,na) == '?') {
3258 sv_setpv(subname,"__ANON__");
3265 LOP(OP_SYSTEM,XREF);
3268 LOP(OP_SYMLINK,XTERM);
3271 LOP(OP_SYSCALL,XTERM);
3274 LOP(OP_SYSOPEN,XTERM);
3277 LOP(OP_SYSREAD,XTERM);
3280 LOP(OP_SYSWRITE,XTERM);
3284 TERM(sublex_start());
3305 LOP(OP_TRUNCATE,XTERM);
3317 yylval.ival = curcop->cop_line;
3321 yylval.ival = curcop->cop_line;
3325 LOP(OP_UNLINK,XTERM);
3331 LOP(OP_UNPACK,XTERM);
3334 LOP(OP_UTIME,XTERM);
3338 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
3339 if (*d != '0' && isDIGIT(*d))
3340 yywarn("umask: argument is missing initial 0");
3345 LOP(OP_UNSHIFT,XTERM);
3348 if (expect != XSTATE)
3349 yyerror("\"use\" not allowed in expression");
3350 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3362 yylval.ival = curcop->cop_line;
3366 hints |= HINT_BLOCK_SCOPE;
3373 LOP(OP_WAITPID,XTERM);
3379 gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */
3383 if (expect == XOPERATOR)
3389 yylval.ival = OP_XOR;
3394 TERM(sublex_start());
3407 if (strEQ(d,"__LINE__")) return -KEY___LINE__;
3408 if (strEQ(d,"__FILE__")) return -KEY___FILE__;
3409 if (strEQ(d,"__DATA__")) return KEY___DATA__;
3410 if (strEQ(d,"__END__")) return KEY___END__;
3414 if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD;
3419 if (strEQ(d,"and")) return -KEY_and;
3420 if (strEQ(d,"abs")) return -KEY_abs;
3423 if (strEQ(d,"alarm")) return -KEY_alarm;
3424 if (strEQ(d,"atan2")) return -KEY_atan2;
3427 if (strEQ(d,"accept")) return -KEY_accept;
3432 if (strEQ(d,"BEGIN")) return KEY_BEGIN;
3435 if (strEQ(d,"bless")) return -KEY_bless;
3436 if (strEQ(d,"bind")) return -KEY_bind;
3437 if (strEQ(d,"binmode")) return -KEY_binmode;
3440 if (strEQ(d,"CORE")) return -KEY_CORE;
3445 if (strEQ(d,"cmp")) return -KEY_cmp;
3446 if (strEQ(d,"chr")) return -KEY_chr;
3447 if (strEQ(d,"cos")) return -KEY_cos;
3450 if (strEQ(d,"chop")) return KEY_chop;
3453 if (strEQ(d,"close")) return -KEY_close;
3454 if (strEQ(d,"chdir")) return -KEY_chdir;
3455 if (strEQ(d,"chomp")) return KEY_chomp;
3456 if (strEQ(d,"chmod")) return -KEY_chmod;
3457 if (strEQ(d,"chown")) return -KEY_chown;
3458 if (strEQ(d,"crypt")) return -KEY_crypt;
3461 if (strEQ(d,"chroot")) return -KEY_chroot;
3462 if (strEQ(d,"caller")) return -KEY_caller;
3465 if (strEQ(d,"connect")) return -KEY_connect;
3468 if (strEQ(d,"closedir")) return -KEY_closedir;
3469 if (strEQ(d,"continue")) return -KEY_continue;
3474 if (strEQ(d,"DESTROY")) return KEY_DESTROY;
3479 if (strEQ(d,"do")) return KEY_do;
3482 if (strEQ(d,"die")) return -KEY_die;
3485 if (strEQ(d,"dump")) return -KEY_dump;
3488 if (strEQ(d,"delete")) return KEY_delete;
3491 if (strEQ(d,"defined")) return KEY_defined;
3492 if (strEQ(d,"dbmopen")) return -KEY_dbmopen;
3495 if (strEQ(d,"dbmclose")) return -KEY_dbmclose;
3500 if (strEQ(d,"EQ")) { deprecate(d); return -KEY_eq;}
3501 if (strEQ(d,"END")) return KEY_END;
3506 if (strEQ(d,"eq")) return -KEY_eq;
3509 if (strEQ(d,"eof")) return -KEY_eof;
3510 if (strEQ(d,"exp")) return -KEY_exp;
3513 if (strEQ(d,"else")) return KEY_else;
3514 if (strEQ(d,"exit")) return -KEY_exit;
3515 if (strEQ(d,"eval")) return KEY_eval;
3516 if (strEQ(d,"exec")) return -KEY_exec;
3517 if (strEQ(d,"each")) return KEY_each;
3520 if (strEQ(d,"elsif")) return KEY_elsif;
3523 if (strEQ(d,"exists")) return KEY_exists;
3524 if (strEQ(d,"elseif")) warn("elseif should be elsif");
3527 if (strEQ(d,"endgrent")) return -KEY_endgrent;
3528 if (strEQ(d,"endpwent")) return -KEY_endpwent;
3531 if (strEQ(d,"endnetent")) return -KEY_endnetent;
3534 if (strEQ(d,"endhostent")) return -KEY_endhostent;
3535 if (strEQ(d,"endservent")) return -KEY_endservent;
3538 if (strEQ(d,"endprotoent")) return -KEY_endprotoent;
3545 if (strEQ(d,"for")) return KEY_for;
3548 if (strEQ(d,"fork")) return -KEY_fork;
3551 if (strEQ(d,"fcntl")) return -KEY_fcntl;
3552 if (strEQ(d,"flock")) return -KEY_flock;
3555 if (strEQ(d,"format")) return KEY_format;
3556 if (strEQ(d,"fileno")) return -KEY_fileno;
3559 if (strEQ(d,"foreach")) return KEY_foreach;
3562 if (strEQ(d,"formline")) return -KEY_formline;
3568 if (strEQ(d,"GT")) { deprecate(d); return -KEY_gt;}
3569 if (strEQ(d,"GE")) { deprecate(d); return -KEY_ge;}
3573 if (strnEQ(d,"get",3)) {
3578 if (strEQ(d,"ppid")) return -KEY_getppid;
3579 if (strEQ(d,"pgrp")) return -KEY_getpgrp;
3582 if (strEQ(d,"pwent")) return -KEY_getpwent;
3583 if (strEQ(d,"pwnam")) return -KEY_getpwnam;
3584 if (strEQ(d,"pwuid")) return -KEY_getpwuid;
3587 if (strEQ(d,"peername")) return -KEY_getpeername;
3588 if (strEQ(d,"protoent")) return -KEY_getprotoent;
3589 if (strEQ(d,"priority")) return -KEY_getpriority;
3592 if (strEQ(d,"protobyname")) return -KEY_getprotobyname;
3595 if (strEQ(d,"protobynumber"))return -KEY_getprotobynumber;
3599 else if (*d == 'h') {
3600 if (strEQ(d,"hostbyname")) return -KEY_gethostbyname;
3601 if (strEQ(d,"hostbyaddr")) return -KEY_gethostbyaddr;
3602 if (strEQ(d,"hostent")) return -KEY_gethostent;
3604 else if (*d == 'n') {
3605 if (strEQ(d,"netbyname")) return -KEY_getnetbyname;
3606 if (strEQ(d,"netbyaddr")) return -KEY_getnetbyaddr;
3607 if (strEQ(d,"netent")) return -KEY_getnetent;
3609 else if (*d == 's') {
3610 if (strEQ(d,"servbyname")) return -KEY_getservbyname;
3611 if (strEQ(d,"servbyport")) return -KEY_getservbyport;
3612 if (strEQ(d,"servent")) return -KEY_getservent;
3613 if (strEQ(d,"sockname")) return -KEY_getsockname;
3614 if (strEQ(d,"sockopt")) return -KEY_getsockopt;
3616 else if (*d == 'g') {
3617 if (strEQ(d,"grent")) return -KEY_getgrent;
3618 if (strEQ(d,"grnam")) return -KEY_getgrnam;
3619 if (strEQ(d,"grgid")) return -KEY_getgrgid;
3621 else if (*d == 'l') {
3622 if (strEQ(d,"login")) return -KEY_getlogin;
3624 else if (strEQ(d,"c")) return -KEY_getc;
3629 if (strEQ(d,"gt")) return -KEY_gt;
3630 if (strEQ(d,"ge")) return -KEY_ge;
3633 if (strEQ(d,"grep")) return KEY_grep;
3634 if (strEQ(d,"goto")) return KEY_goto;
3635 if (strEQ(d,"glob")) return -KEY_glob;
3638 if (strEQ(d,"gmtime")) return -KEY_gmtime;
3643 if (strEQ(d,"hex")) return -KEY_hex;
3648 if (strEQ(d,"if")) return KEY_if;
3651 if (strEQ(d,"int")) return -KEY_int;
3654 if (strEQ(d,"index")) return -KEY_index;
3655 if (strEQ(d,"ioctl")) return -KEY_ioctl;
3660 if (strEQ(d,"join")) return -KEY_join;
3664 if (strEQ(d,"keys")) return KEY_keys;
3665 if (strEQ(d,"kill")) return -KEY_kill;
3670 if (strEQ(d,"LT")) { deprecate(d); return -KEY_lt;}
3671 if (strEQ(d,"LE")) { deprecate(d); return -KEY_le;}
3677 if (strEQ(d,"lt")) return -KEY_lt;
3678 if (strEQ(d,"le")) return -KEY_le;
3679 if (strEQ(d,"lc")) return -KEY_lc;
3682 if (strEQ(d,"log")) return -KEY_log;
3685 if (strEQ(d,"last")) return KEY_last;
3686 if (strEQ(d,"link")) return -KEY_link;
3689 if (strEQ(d,"local")) return KEY_local;
3690 if (strEQ(d,"lstat")) return -KEY_lstat;
3693 if (strEQ(d,"length")) return -KEY_length;
3694 if (strEQ(d,"listen")) return -KEY_listen;
3697 if (strEQ(d,"lcfirst")) return -KEY_lcfirst;
3700 if (strEQ(d,"localtime")) return -KEY_localtime;
3706 case 1: return KEY_m;
3708 if (strEQ(d,"my")) return KEY_my;
3711 if (strEQ(d,"map")) return KEY_map;
3714 if (strEQ(d,"mkdir")) return -KEY_mkdir;
3717 if (strEQ(d,"msgctl")) return -KEY_msgctl;
3718 if (strEQ(d,"msgget")) return -KEY_msgget;
3719 if (strEQ(d,"msgrcv")) return -KEY_msgrcv;
3720 if (strEQ(d,"msgsnd")) return -KEY_msgsnd;
3725 if (strEQ(d,"NE")) { deprecate(d); return -KEY_ne;}
3728 if (strEQ(d,"next")) return KEY_next;
3729 if (strEQ(d,"ne")) return -KEY_ne;
3730 if (strEQ(d,"not")) return -KEY_not;
3731 if (strEQ(d,"no")) return KEY_no;
3736 if (strEQ(d,"or")) return -KEY_or;
3739 if (strEQ(d,"ord")) return -KEY_ord;
3740 if (strEQ(d,"oct")) return -KEY_oct;
3743 if (strEQ(d,"open")) return -KEY_open;
3746 if (strEQ(d,"opendir")) return -KEY_opendir;
3753 if (strEQ(d,"pop")) return KEY_pop;
3754 if (strEQ(d,"pos")) return KEY_pos;
3757 if (strEQ(d,"push")) return KEY_push;
3758 if (strEQ(d,"pack")) return -KEY_pack;
3759 if (strEQ(d,"pipe")) return -KEY_pipe;
3762 if (strEQ(d,"print")) return KEY_print;
3765 if (strEQ(d,"printf")) return KEY_printf;
3768 if (strEQ(d,"package")) return KEY_package;
3771 if (strEQ(d,"prototype")) return KEY_prototype;
3776 if (strEQ(d,"q")) return KEY_q;
3777 if (strEQ(d,"qq")) return KEY_qq;
3778 if (strEQ(d,"qw")) return KEY_qw;
3779 if (strEQ(d,"qx")) return KEY_qx;
3781 else if (strEQ(d,"quotemeta")) return -KEY_quotemeta;
3786 if (strEQ(d,"ref")) return -KEY_ref;
3789 if (strEQ(d,"read")) return -KEY_read;
3790 if (strEQ(d,"rand")) return -KEY_rand;
3791 if (strEQ(d,"recv")) return -KEY_recv;
3792 if (strEQ(d,"redo")) return KEY_redo;
3795 if (strEQ(d,"rmdir")) return -KEY_rmdir;
3796 if (strEQ(d,"reset")) return -KEY_reset;
3799 if (strEQ(d,"return")) return KEY_return;
3800 if (strEQ(d,"rename")) return -KEY_rename;
3801 if (strEQ(d,"rindex")) return -KEY_rindex;
3804 if (strEQ(d,"require")) return -KEY_require;
3805 if (strEQ(d,"reverse")) return -KEY_reverse;
3806 if (strEQ(d,"readdir")) return -KEY_readdir;
3809 if (strEQ(d,"readlink")) return -KEY_readlink;
3810 if (strEQ(d,"readline")) return -KEY_readline;
3811 if (strEQ(d,"readpipe")) return -KEY_readpipe;
3814 if (strEQ(d,"rewinddir")) return -KEY_rewinddir;
3820 case 0: return KEY_s;
3822 if (strEQ(d,"scalar")) return KEY_scalar;
3827 if (strEQ(d,"seek")) return -KEY_seek;
3828 if (strEQ(d,"send")) return -KEY_send;
3831 if (strEQ(d,"semop")) return -KEY_semop;
3834 if (strEQ(d,"select")) return -KEY_select;
3835 if (strEQ(d,"semctl")) return -KEY_semctl;
3836 if (strEQ(d,"semget")) return -KEY_semget;
3839 if (strEQ(d,"setpgrp")) return -KEY_setpgrp;
3840 if (strEQ(d,"seekdir")) return -KEY_seekdir;
3843 if (strEQ(d,"setpwent")) return -KEY_setpwent;
3844 if (strEQ(d,"setgrent")) return -KEY_setgrent;
3847 if (strEQ(d,"setnetent")) return -KEY_setnetent;
3850 if (strEQ(d,"setsockopt")) return -KEY_setsockopt;
3851 if (strEQ(d,"sethostent")) return -KEY_sethostent;
3852 if (strEQ(d,"setservent")) return -KEY_setservent;
3855 if (strEQ(d,"setpriority")) return -KEY_setpriority;
3856 if (strEQ(d,"setprotoent")) return -KEY_setprotoent;
3863 if (strEQ(d,"shift")) return KEY_shift;
3866 if (strEQ(d,"shmctl")) return -KEY_shmctl;
3867 if (strEQ(d,"shmget")) return -KEY_shmget;
3870 if (strEQ(d,"shmread")) return -KEY_shmread;
3873 if (strEQ(d,"shmwrite")) return -KEY_shmwrite;
3874 if (strEQ(d,"shutdown")) return -KEY_shutdown;
3879 if (strEQ(d,"sin")) return -KEY_sin;
3882 if (strEQ(d,"sleep")) return -KEY_sleep;
3885 if (strEQ(d,"sort")) return KEY_sort;
3886 if (strEQ(d,"socket")) return -KEY_socket;
3887 if (strEQ(d,"socketpair")) return -KEY_socketpair;
3890 if (strEQ(d,"split")) return KEY_split;
3891 if (strEQ(d,"sprintf")) return -KEY_sprintf;
3892 if (strEQ(d,"splice")) return KEY_splice;
3895 if (strEQ(d,"sqrt")) return -KEY_sqrt;
3898 if (strEQ(d,"srand")) return -KEY_srand;
3901 if (strEQ(d,"stat")) return -KEY_stat;
3902 if (strEQ(d,"study")) return KEY_study;
3905 if (strEQ(d,"substr")) return -KEY_substr;
3906 if (strEQ(d,"sub")) return KEY_sub;
3911 if (strEQ(d,"system")) return -KEY_system;
3914 if (strEQ(d,"sysopen")) return -KEY_sysopen;
3915 if (strEQ(d,"sysread")) return -KEY_sysread;
3916 if (strEQ(d,"symlink")) return -KEY_symlink;
3917 if (strEQ(d,"syscall")) return -KEY_syscall;
3920 if (strEQ(d,"syswrite")) return -KEY_syswrite;
3929 if (strEQ(d,"tr")) return KEY_tr;
3932 if (strEQ(d,"tie")) return KEY_tie;
3935 if (strEQ(d,"tell")) return -KEY_tell;
3936 if (strEQ(d,"tied")) return KEY_tied;
3937 if (strEQ(d,"time")) return -KEY_time;
3940 if (strEQ(d,"times")) return -KEY_times;
3943 if (strEQ(d,"telldir")) return -KEY_telldir;
3946 if (strEQ(d,"truncate")) return -KEY_truncate;
3953 if (strEQ(d,"uc")) return -KEY_uc;
3956 if (strEQ(d,"use")) return KEY_use;
3959 if (strEQ(d,"undef")) return KEY_undef;
3960 if (strEQ(d,"until")) return KEY_until;
3961 if (strEQ(d,"untie")) return KEY_untie;
3962 if (strEQ(d,"utime")) return -KEY_utime;
3963 if (strEQ(d,"umask")) return -KEY_umask;
3966 if (strEQ(d,"unless")) return KEY_unless;
3967 if (strEQ(d,"unpack")) return -KEY_unpack;
3968 if (strEQ(d,"unlink")) return -KEY_unlink;
3971 if (strEQ(d,"unshift")) return KEY_unshift;
3972 if (strEQ(d,"ucfirst")) return -KEY_ucfirst;
3977 if (strEQ(d,"values")) return -KEY_values;
3978 if (strEQ(d,"vec")) return -KEY_vec;
3983 if (strEQ(d,"warn")) return -KEY_warn;
3984 if (strEQ(d,"wait")) return -KEY_wait;
3987 if (strEQ(d,"while")) return KEY_while;
3988 if (strEQ(d,"write")) return -KEY_write;
3991 if (strEQ(d,"waitpid")) return -KEY_waitpid;
3994 if (strEQ(d,"wantarray")) return -KEY_wantarray;
3999 if (len == 1) return -KEY_x;
4000 if (strEQ(d,"xor")) return -KEY_xor;
4003 if (len == 1) return KEY_y;
4012 checkcomma(s,name,what)
4019 if (dowarn && *s == ' ' && s[1] == '(') { /* XXX gotta be a better way */
4021 for (w = s+2; *w && level; w++) {
4028 for (; *w && isSPACE(*w); w++) ;
4029 if (!*w || !strchr(";|})]oa!=", *w)) /* an advisory hack only... */
4030 warn("%s (...) interpreted as function",name);
4032 while (s < bufend && isSPACE(*s))
4036 while (s < bufend && isSPACE(*s))
4038 if (isIDFIRST(*s)) {
4042 while (s < bufend && isSPACE(*s))
4047 kw = keyword(w, s - w) || perl_get_cv(w, FALSE) != 0;
4051 croak("No comma allowed after %s", what);
4057 scan_word(s, dest, allow_package, slp)
4063 register char *d = dest;
4067 else if (*s == '\'' && allow_package && isIDFIRST(s[1])) {
4072 else if (*s == ':' && s[1] == ':' && allow_package && isIDFIRST(s[2])) {
4085 scan_ident(s,send,dest,ck_uni)
4087 register char *send;
4095 if (lex_brackets == 0)
4108 else if (*s == '\'' && isIDFIRST(s[1])) {
4113 else if (*s == ':' && s[1] == ':') {
4124 if (lex_state != LEX_NORMAL)
4125 lex_state = LEX_INTERPENDMAYBE;
4128 if (*s == '$' && s[1] &&
4129 (isALPHA(s[1]) || strchr("$_{", s[1]) || strnEQ(s+1,"::",2)) )
4140 if (*d == '^' && *s && (isUPPER(*s) || strchr("[\\]^_?", *s))) {
4144 if (isSPACE(s[-1])) {
4145 while (s < send && (*s == ' ' || *s == '\t')) s++;
4148 if (isALPHA(*d) || *d == '_') {
4150 while (isALNUM(*s) || *s == ':')
4153 while (s < send && (*s == ' ' || *s == '\t')) s++;
4154 if ((*s == '[' || *s == '{')) {
4155 if (dowarn && keyword(dest, d - dest)) {
4156 char *brack = *s == '[' ? "[...]" : "{...}";
4157 warn("Ambiguous use of %c{%s%s} resolved to %c%s%s",
4158 funny, dest, brack, funny, dest, brack);
4160 lex_fakebrack = lex_brackets+1;
4162 lex_brackstack[lex_brackets++] = XOPERATOR;
4168 if (lex_state == LEX_INTERPNORMAL && !lex_brackets)
4169 lex_state = LEX_INTERPEND;
4173 (keyword(dest, d - dest) || perl_get_cv(dest, FALSE)))
4174 warn("Ambiguous use of %c{%s} resolved to %c%s",
4175 funny, dest, funny, dest);
4178 s = bracket; /* let the parser handle it */
4182 else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s))
4183 lex_state = LEX_INTERPEND;
4187 void pmflag(pmfl,ch)
4196 *pmfl |= PMf_GLOBAL;
4200 *pmfl |= PMf_MULTILINE;
4202 *pmfl |= PMf_SINGLELINE;
4204 *pmfl |= PMf_EXTENDED;
4214 s = scan_str(start);
4217 SvREFCNT_dec(lex_stuff);
4219 croak("Search pattern not terminated");
4221 pm = (PMOP*)newPMOP(OP_MATCH, 0);
4222 if (multi_open == '?')
4223 pm->op_pmflags |= PMf_ONCE;
4225 while (*s && strchr("iogmsx", *s))
4226 pmflag(&pm->op_pmflags,*s++);
4228 pm->op_pmpermflags = pm->op_pmflags;
4230 yylval.ival = OP_MATCH;
4242 yylval.ival = OP_NULL;
4244 s = scan_str(start);
4248 SvREFCNT_dec(lex_stuff);
4250 croak("Substitution pattern not terminated");
4253 if (s[-1] == multi_open)
4259 SvREFCNT_dec(lex_stuff);
4262 SvREFCNT_dec(lex_repl);
4264 croak("Substitution replacement not terminated");
4267 pm = (PMOP*)newPMOP(OP_SUBST, 0);
4268 while (*s && strchr("iogmsex", *s)) {
4274 pmflag(&pm->op_pmflags,*s++);
4279 pm->op_pmflags |= PMf_EVAL;
4280 repl = newSVpv("",0);
4282 sv_catpv(repl, es ? "eval " : "do ");
4283 sv_catpvn(repl, "{ ", 2);
4284 sv_catsv(repl, lex_repl);
4285 sv_catpvn(repl, " };", 2);
4286 SvCOMPILED_on(repl);
4287 SvREFCNT_dec(lex_repl);
4291 pm->op_pmpermflags = pm->op_pmflags;
4293 yylval.ival = OP_SUBST;
4301 if (!pm->op_pmshort && pm->op_pmregexp->regstart &&
4302 (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH)
4304 if (!(pm->op_pmregexp->reganch & ROPT_ANCH))
4305 pm->op_pmflags |= PMf_SCANFIRST;
4306 else if (pm->op_pmflags & PMf_FOLD)
4308 pm->op_pmshort = SvREFCNT_inc(pm->op_pmregexp->regstart);
4309 pm->op_pmslen = SvCUR(pm->op_pmshort);
4311 else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */
4312 if (pm->op_pmshort &&
4313 sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust))
4315 if (pm->op_pmflags & PMf_SCANFIRST) {
4316 SvREFCNT_dec(pm->op_pmshort);
4317 pm->op_pmshort = Nullsv;
4320 SvREFCNT_dec(pm->op_pmregexp->regmust);
4321 pm->op_pmregexp->regmust = Nullsv;
4325 if (!pm->op_pmshort || /* promote the better string */
4326 ((pm->op_pmflags & PMf_SCANFIRST) &&
4327 (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)) )){
4328 SvREFCNT_dec(pm->op_pmshort); /* ok if null */
4329 pm->op_pmshort = pm->op_pmregexp->regmust;
4330 pm->op_pmslen = SvCUR(pm->op_pmshort);
4331 pm->op_pmregexp->regmust = Nullsv;
4332 pm->op_pmflags |= PMf_SCANFIRST;
4348 yylval.ival = OP_NULL;
4350 s = scan_str(start);
4353 SvREFCNT_dec(lex_stuff);
4355 croak("Translation pattern not terminated");
4357 if (s[-1] == multi_open)
4363 SvREFCNT_dec(lex_stuff);
4366 SvREFCNT_dec(lex_repl);
4368 croak("Translation replacement not terminated");
4371 New(803,tbl,256,short);
4372 op = newPVOP(OP_TRANS, 0, (char*)tbl);
4374 complement = delete = squash = 0;
4375 while (*s == 'c' || *s == 'd' || *s == 's') {
4377 complement = OPpTRANS_COMPLEMENT;
4379 delete = OPpTRANS_DELETE;
4381 squash = OPpTRANS_SQUASH;
4384 op->op_private = delete|squash|complement;
4387 yylval.ival = OP_TRANS;
4396 I32 op_type = OP_SCALAR;
4407 for (peek = s; *peek == ' ' || *peek == '\t'; peek++) ;
4408 if (*peek && strchr("`'\"",*peek)) {
4411 s = cpytill(d,s,bufend,term,&len);
4422 deprecate("bare << to mean <<\"\"");
4425 } /* assuming tokenbuf won't clobber */
4430 if (rsfp || !(d=ninstr(s,bufend,d,d+1)))
4431 herewas = newSVpv(s,bufend-s);
4433 s--, herewas = newSVpv(s,d-s);
4434 s += SvCUR(herewas);
4436 tmpstr = NEWSV(87,80);
4437 sv_upgrade(tmpstr, SVt_PVIV);
4442 else if (term == '`') {
4443 op_type = OP_BACKTICK;
4444 SvIVX(tmpstr) = '\\';
4448 multi_start = curcop->cop_line;
4449 multi_open = multi_close = '<';
4453 while (s < bufend &&
4454 (*s != term || bcmp(s,tokenbuf,len) != 0) ) {
4459 curcop->cop_line = multi_start;
4460 missingterm(tokenbuf);
4462 sv_setpvn(tmpstr,d+1,s-d);
4464 sv_catpvn(herewas,s,bufend-s);
4465 sv_setsv(linestr,herewas);
4466 oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr);
4467 bufend = SvPVX(linestr) + SvCUR(linestr);
4470 sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */
4471 while (s >= bufend) { /* multiple line string? */
4473 !(oldoldbufptr = oldbufptr = s = filter_gets(linestr, rsfp))) {
4474 curcop->cop_line = multi_start;
4475 missingterm(tokenbuf);
4478 if (perldb && curstash != debstash) {
4479 SV *sv = NEWSV(88,0);
4481 sv_upgrade(sv, SVt_PVMG);
4482 sv_setsv(sv,linestr);
4483 av_store(GvAV(curcop->cop_filegv),
4484 (I32)curcop->cop_line,sv);
4486 bufend = SvPVX(linestr) + SvCUR(linestr);
4487 if (*s == term && bcmp(s,tokenbuf,len) == 0) {
4490 sv_catsv(linestr,herewas);
4491 bufend = SvPVX(linestr) + SvCUR(linestr);
4495 sv_catsv(tmpstr,linestr);
4498 multi_end = curcop->cop_line;
4500 if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) {
4501 SvLEN_set(tmpstr, SvCUR(tmpstr) + 1);
4502 Renew(SvPVX(tmpstr), SvLEN(tmpstr), char);
4504 SvREFCNT_dec(herewas);
4506 yylval.ival = op_type;
4511 scan_inputsymbol(start)
4514 register char *s = start;
4519 s = cpytill(d, s+1, bufend, '>', &len);
4523 croak("Unterminated <> operator");
4525 if (*d == '$' && d[1]) d++;
4526 while (*d && (isALNUM(*d) || *d == '\'' || *d == ':'))
4528 if (d - tokenbuf != len) {
4529 yylval.ival = OP_GLOB;
4531 s = scan_str(start);
4533 croak("Glob not terminated");
4539 (void)strcpy(d,"ARGV");
4542 if (tmp = pad_findmy(d)) {
4543 OP *op = newOP(OP_PADSV, 0);
4545 lex_op = (OP*)newUNOP(OP_READLINE, 0, newUNOP(OP_RV2GV, 0, op));
4548 GV *gv = gv_fetchpv(d+1,TRUE, SVt_PV);
4549 lex_op = (OP*)newUNOP(OP_READLINE, 0,
4550 newUNOP(OP_RV2GV, 0,
4551 newUNOP(OP_RV2SV, 0,
4552 newGVOP(OP_GV, 0, gv))));
4554 yylval.ival = OP_NULL;
4557 GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO);
4558 lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv));
4559 yylval.ival = OP_NULL;
4571 register char *s = start;
4580 multi_start = curcop->cop_line;
4582 if (term && (tmps = strchr("([{< )]}> )]}>",term)))
4587 sv_upgrade(sv, SVt_PVIV);
4589 (void)SvPOK_only(sv); /* validate pointer */
4592 SvGROW(sv, SvCUR(sv) + (bufend - s) + 1);
4593 to = SvPVX(sv)+SvCUR(sv);
4594 if (multi_open == multi_close) {
4595 for (; s < bufend; s++,to++) {
4596 if (*s == '\n' && !rsfp)
4598 if (*s == '\\' && s+1 < bufend && term != '\\') {
4604 else if (*s == term)
4610 for (; s < bufend; s++,to++) {
4611 if (*s == '\n' && !rsfp)
4613 if (*s == '\\' && s+1 < bufend && term != '\\') {
4619 else if (*s == term && --brackets <= 0)
4621 else if (*s == multi_open)
4627 SvCUR_set(sv, to - SvPVX(sv));
4629 if (s < bufend) break; /* string ends on this line? */
4632 !(oldoldbufptr = oldbufptr = s = filter_gets(linestr, rsfp))) {
4634 curcop->cop_line = multi_start;
4638 if (perldb && curstash != debstash) {
4639 SV *sv = NEWSV(88,0);
4641 sv_upgrade(sv, SVt_PVMG);
4642 sv_setsv(sv,linestr);
4643 av_store(GvAV(curcop->cop_filegv),
4644 (I32)curcop->cop_line, sv);
4646 bufend = SvPVX(linestr) + SvCUR(linestr);
4648 multi_end = curcop->cop_line;
4650 if (SvCUR(sv) + 5 < SvLEN(sv)) {
4651 SvLEN_set(sv, SvCUR(sv) + 1);
4652 Renew(SvPVX(sv), SvLEN(sv), char);
4665 register char *s = start;
4675 croak("panic: scan_num");
4685 else if (s[1] == '.')
4699 yyerror("Illegal octal digit");
4701 case '0': case '1': case '2': case '3': case '4':
4702 case '5': case '6': case '7':
4706 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
4707 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
4711 i += (*s++ & 7) + 9;
4718 if (tryi32 == i && tryi32 >= 0)
4719 sv_setiv(sv,tryi32);
4721 sv_setnv(sv,(double)i);
4724 case '1': case '2': case '3': case '4': case '5':
4725 case '6': case '7': case '8': case '9': case '.':
4729 while (isDIGIT(*s) || *s == '_') {
4731 if (dowarn && lastub && s - lastub != 3)
4732 warn("Misplaced _ in number");
4738 if (dowarn && lastub && s - lastub != 3)
4739 warn("Misplaced _ in number");
4740 if (*s == '.' && s[1] != '.') {
4743 while (isDIGIT(*s) || *s == '_') {
4750 if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) {
4753 *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */
4754 if (*s == '+' || *s == '-')
4761 value = atof(tokenbuf);
4762 tryi32 = I_32(value);
4763 if (!floatit && (double)tryi32 == value)
4764 sv_setiv(sv,tryi32);
4770 yylval.opval = newSVOP(OP_CONST, 0, sv);
4781 SV *stuff = newSVpv("",0);
4782 bool needargs = FALSE;
4785 if (*s == '.' || *s == '}') {
4787 for (t = s+1; *t == ' ' || *t == '\t'; t++) ;
4791 if (in_eval && !rsfp) {
4792 eol = strchr(s,'\n');
4797 eol = bufend = SvPVX(linestr) + SvCUR(linestr);
4799 for (t = s; t < eol; t++) {
4800 if (*t == '~' && t[1] == '~' && SvCUR(stuff)) {
4802 goto enough; /* ~~ must be first line in formline */
4804 if (*t == '@' || *t == '^')
4807 sv_catpvn(stuff, s, eol-s);
4811 s = filter_gets(linestr, rsfp);
4812 oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr);
4813 bufend = bufptr + SvCUR(linestr);
4816 yyerror("Format not terminated");
4826 lex_state = LEX_NORMAL;
4827 nextval[nexttoke].ival = 0;
4831 lex_state = LEX_FORMLINE;
4832 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff);
4834 nextval[nexttoke].ival = OP_FORMLINE;
4838 SvREFCNT_dec(stuff);
4850 cshlen = strlen(cshname);
4857 int oldsavestack_ix = savestack_ix;
4858 CV* outsidecv = compcv;
4862 assert(SvTYPE(compcv) == SVt_PVCV);
4869 SAVESPTR(comppad_name);
4871 SAVEINT(comppad_name_fill);
4872 SAVEINT(min_intro_pending);
4873 SAVEINT(max_intro_pending);
4874 SAVEINT(pad_reset_pending);
4876 compcv = (CV*)NEWSV(1104,0);
4877 sv_upgrade((SV *)compcv, SVt_PVCV);
4880 comppad_name = newAV();
4881 comppad_name_fill = 0;
4882 min_intro_pending = 0;
4883 av_push(comppad, Nullsv);
4884 curpad = AvARRAY(comppad);
4886 subline = curcop->cop_line;
4888 comppadlist = newAV();
4889 AvREAL_off(comppadlist);
4890 av_store(comppadlist, 0, (SV*)comppad_name);
4891 av_store(comppadlist, 1, (SV*)comppad);
4893 CvPADLIST(compcv) = comppadlist;
4894 CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc((SV*)outsidecv);
4896 return oldsavestack_ix;
4915 char *tname = tmpbuf;
4917 if (bufptr > oldoldbufptr && bufptr - oldoldbufptr < 200 &&
4918 oldoldbufptr != oldbufptr && oldbufptr != bufptr) {
4919 while (isSPACE(*oldoldbufptr))
4921 sprintf(tname,"near \"%.*s\"",bufptr - oldoldbufptr, oldoldbufptr);
4923 else if (bufptr > oldbufptr && bufptr - oldbufptr < 200 &&
4924 oldbufptr != bufptr) {
4925 while (isSPACE(*oldbufptr))
4927 sprintf(tname,"near \"%.*s\"",bufptr - oldbufptr, oldbufptr);
4929 else if (yychar > 255)
4930 tname = "next token ???";
4931 else if (!yychar || (yychar == ';' && !rsfp))
4932 (void)strcpy(tname,"at EOF");
4933 else if ((yychar & 127) == 127) {
4934 if (lex_state == LEX_NORMAL ||
4935 (lex_state == LEX_KNOWNEXT && lex_defer == LEX_NORMAL))
4936 (void)strcpy(tname,"at end of line");
4938 (void)strcpy(tname,"within pattern");
4940 (void)strcpy(tname,"within string");
4942 else if (yychar < 32)
4943 (void)sprintf(tname,"next char ^%c",yychar+64);
4945 (void)sprintf(tname,"next char %c",yychar);
4946 (void)sprintf(buf, "%s at %s line %d, %s\n",
4947 s,SvPVX(GvSV(curcop->cop_filegv)),curcop->cop_line,tname);
4948 if (curcop->cop_line == multi_end && multi_start < multi_end) {
4949 sprintf(buf+strlen(buf),
4950 " (Might be a runaway multi-line %c%c string starting on line %ld)\n",
4951 multi_open,multi_close,(long)multi_start);
4957 sv_catpv(GvSV(errgv),buf);
4960 if (++error_count >= 10)
4961 croak("%s has too many errors.\n",
4962 SvPVX(GvSV(curcop->cop_filegv)));