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));
47 static void restore_rsfp _((void *f));
49 /* The following are arranged oddly so that the guard on the switch statement
50 * can get by with a single comparison (if the compiler is smart enough).
54 #define LEX_INTERPNORMAL 8
55 #define LEX_INTERPCASEMOD 7
56 #define LEX_INTERPSTART 6
57 #define LEX_INTERPEND 5
58 #define LEX_INTERPENDMAYBE 4
59 #define LEX_INTERPCONCAT 3
60 #define LEX_INTERPCONST 2
61 #define LEX_FORMLINE 1
62 #define LEX_KNOWNEXT 0
80 #define CLINE (copline = (curcop->cop_line < copline ? curcop->cop_line : copline))
82 #define TOKEN(retval) return (bufptr = s,(int)retval)
83 #define OPERATOR(retval) return (expect = XTERM,bufptr = s,(int)retval)
84 #define AOPERATOR(retval) return ao((expect = XTERM,bufptr = s,(int)retval))
85 #define PREBLOCK(retval) return (expect = XBLOCK,bufptr = s,(int)retval)
86 #define PRETERMBLOCK(retval) return (expect = XTERMBLOCK,bufptr = s,(int)retval)
87 #define PREREF(retval) return (expect = XREF,bufptr = s,(int)retval)
88 #define TERM(retval) return (CLINE, expect = XOPERATOR,bufptr = s,(int)retval)
89 #define LOOPX(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LOOPEX)
90 #define FTST(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)UNIOP)
91 #define FUN0(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC0)
92 #define FUN1(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC1)
93 #define BOop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITOROP))
94 #define BAop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITANDOP))
95 #define SHop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)SHIFTOP))
96 #define PWop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)POWOP))
97 #define PMop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MATCHOP)
98 #define Aop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)ADDOP))
99 #define Mop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)MULOP))
100 #define Eop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)EQOP)
101 #define Rop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)RELOP)
103 /* This bit of chicanery makes a unary function followed by
104 * a parenthesis into a function with one argument, highest precedence.
106 #define UNI(f) return(yylval.ival = f, \
109 last_uni = oldbufptr, \
111 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
113 #define UNIBRACK(f) return(yylval.ival = f, \
115 last_uni = oldbufptr, \
116 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
118 /* grandfather return to old style */
119 #define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP)
125 if (*bufptr == '=') {
127 if (toketype == ANDAND)
128 yylval.ival = OP_ANDASSIGN;
129 else if (toketype == OROR)
130 yylval.ival = OP_ORASSIGN;
142 char *oldbp = bufptr;
143 bool is_first = (oldbufptr == SvPVX(linestr));
145 sprintf(tmpbuf, "%s found where operator expected", what);
148 warn("\t(Missing semicolon on previous line?)\n");
149 else if (oldoldbufptr && isIDFIRST(*oldoldbufptr)) {
151 for (t = oldoldbufptr; *t && (isALNUM(*t) || *t == ':'); t++) ;
152 if (t < bufptr && isSPACE(*t))
153 warn("\t(Do you need to predeclare %.*s?)\n",
154 t - oldoldbufptr, oldoldbufptr);
158 warn("\t(Missing operator before %.*s?)\n", s - oldbp, oldbp);
169 char *nl = strrchr(s,'\n');
173 else if (multi_close < 32 || multi_close == 127) {
175 tmpbuf[1] = multi_close ^ 64;
181 *tmpbuf = multi_close;
185 q = strchr(s,'"') ? '\'' : '"';
186 croak("Can't find string terminator %c%s%c anywhere before EOF",q,s,q);
194 warn("Use of %s is deprecated", s);
200 deprecate("comma-less variable list");
211 SAVEINT(lex_brackets);
212 SAVEINT(lex_fakebrack);
213 SAVEINT(lex_casemods);
218 SAVEINT(curcop->cop_line);
222 SAVEPPTR(oldoldbufptr);
224 SAVEPPTR(lex_brackstack);
225 SAVEPPTR(lex_casestack);
226 SAVEDESTRUCTOR(restore_rsfp, rsfp);
228 lex_state = LEX_NORMAL;
233 New(899, lex_brackstack, 120, char);
234 New(899, lex_casestack, 12, char);
235 SAVEFREEPV(lex_brackstack);
236 SAVEFREEPV(lex_casestack);
238 *lex_casestack = '\0';
242 SvREFCNT_dec(lex_stuff);
245 SvREFCNT_dec(lex_repl);
250 if (SvREADONLY(linestr))
251 linestr = sv_2mortal(newSVsv(linestr));
252 s = SvPV(linestr, len);
253 if (len && s[len-1] != ';') {
254 if (!(SvFLAGS(linestr) & SVs_TEMP))
255 linestr = sv_2mortal(newSVsv(linestr));
256 sv_catpvn(linestr, "\n;", 2);
259 oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr);
260 bufend = bufptr + SvCUR(linestr);
262 rs = newSVpv("\n", 1);
279 else if (rsfp && (rsfp != fp))
296 while (*s == ' ' || *s == '\t') s++;
297 if (strnEQ(s, "line ", 5)) {
306 while (*s == ' ' || *s == '\t')
308 if (*s == '"' && (t = strchr(s+1, '"')))
312 return; /* false alarm */
313 for (t = s; !isSPACE(*t); t++) ;
318 curcop->cop_filegv = gv_fetchfile(s);
320 curcop->cop_filegv = gv_fetchfile(origfilename);
322 curcop->cop_line = atoi(n)-1;
329 if (lex_formbrack && lex_brackets <= lex_formbrack) {
330 while (s < bufend && (*s == ' ' || *s == '\t'))
335 while (s < bufend && isSPACE(*s))
337 if (s < bufend && *s == '#') {
338 while (s < bufend && *s != '\n')
343 if (s < bufend || !rsfp || lex_state != LEX_NORMAL)
345 if ((s = filter_gets(linestr, rsfp)) == Nullch) {
346 if (minus_n || minus_p) {
347 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
348 sv_catpv(linestr,";}");
349 minus_n = minus_p = 0;
352 sv_setpv(linestr,";");
353 oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr);
354 bufend = SvPVX(linestr) + SvCUR(linestr);
355 if (preprocess && !in_eval)
356 (void)my_pclose(rsfp);
357 else if ((FILE*)rsfp == stdin)
364 oldoldbufptr = oldbufptr = bufptr = s;
365 bufend = bufptr + SvCUR(linestr);
367 if (perldb && curstash != debstash) {
368 SV *sv = NEWSV(85,0);
370 sv_upgrade(sv, SVt_PVMG);
371 sv_setsv(sv,linestr);
372 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
383 if (oldoldbufptr != last_uni)
385 while (isSPACE(*last_uni))
387 for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ;
388 if ((t = strchr(s, '(')) && t < bufptr)
392 warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni);
399 #define UNI(f) return uni(f,s)
409 last_uni = oldbufptr;
420 #endif /* CRIPPLED_CC */
422 #define LOP(f,x) return lop(f,x,s)
434 last_lop = oldbufptr;
451 nexttype[nexttoke] = type;
453 if (lex_state != LEX_KNOWNEXT) {
454 lex_defer = lex_state;
456 lex_state = LEX_KNOWNEXT;
461 force_word(start,token,check_keyword,allow_pack,allow_tick)
462 register char *start;
471 start = skipspace(start);
474 (allow_pack && *s == ':') ||
475 (allow_tick && *s == '\'') )
477 s = scan_word(s, tokenbuf, allow_pack, &len);
478 if (check_keyword && keyword(tokenbuf, len))
480 if (token == METHOD) {
490 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(tokenbuf,0));
491 nextval[nexttoke].opval->op_private |= OPpCONST_BARE;
503 OP* op = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0));
504 nextval[nexttoke].opval = op;
507 op->op_private = OPpCONST_ENTERED;
509 kind == '$' ? SVt_PV :
510 kind == '@' ? SVt_PVAV :
511 kind == '%' ? SVt_PVHV :
530 s = SvPV_force(sv, len);
534 while (s < send && *s != '\\')
541 if (s + 1 < send && (s[1] == '\\'))
542 s++; /* all that, just for this */
547 SvCUR_set(sv, d - SvPVX(sv));
555 register I32 op_type = yylval.ival;
557 if (op_type == OP_NULL) {
558 yylval.opval = lex_op;
562 if (op_type == OP_CONST || op_type == OP_READLINE) {
563 yylval.opval = (OP*)newSVOP(op_type, 0, q(lex_stuff));
570 SAVEINT(lex_brackets);
571 SAVEINT(lex_fakebrack);
572 SAVEINT(lex_casemods);
577 SAVEINT(curcop->cop_line);
580 SAVEPPTR(oldoldbufptr);
582 SAVEPPTR(lex_brackstack);
583 SAVEPPTR(lex_casestack);
588 bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
589 bufend += SvCUR(linestr);
595 New(899, lex_brackstack, 120, char);
596 New(899, lex_casestack, 12, char);
597 SAVEFREEPV(lex_brackstack);
598 SAVEFREEPV(lex_casestack);
600 *lex_casestack = '\0';
602 lex_state = LEX_INTERPCONCAT;
603 curcop->cop_line = multi_start;
605 lex_inwhat = op_type;
606 if (op_type == OP_MATCH || op_type == OP_SUBST)
614 yylval.opval = lex_op;
627 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0));
631 if (lex_casemods) { /* oops, we've got some unbalanced parens */
632 lex_state = LEX_INTERPCASEMOD;
636 /* Is there a right-hand side to take care of? */
637 if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) {
640 bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
641 bufend += SvCUR(linestr);
647 *lex_casestack = '\0';
649 if (SvCOMPILED(lex_repl)) {
650 lex_state = LEX_INTERPNORMAL;
654 lex_state = LEX_INTERPCONCAT;
660 bufend = SvPVX(linestr);
661 bufend += SvCUR(linestr);
671 register char *send = bufend;
672 SV *sv = NEWSV(93, send - start);
673 register char *s = start;
674 register char *d = SvPVX(sv);
675 bool dorange = FALSE;
679 ? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]} \t\n\r\f\v#"
680 : (lex_inwhat & OP_TRANS)
684 while (s < send || dorange) {
685 if (lex_inwhat == OP_TRANS) {
690 SvGROW(sv, SvLEN(sv) + 256);
694 for (i = (U8)*d; i <= max; i++)
699 else if (*s == '-' && s+1 < send && s != start) {
704 else if (*s == '(' && lex_inpat && s[1] == '?' && s[2] == '#') {
705 while (s < send && *s != ')')
708 else if (*s == '#' && lex_inpat &&
709 ((PMOP*)lex_inpat)->op_pmflags & PMf_EXTENDED) {
710 while (s+1 < send && *s != '\n')
713 else if (*s == '@' && s[1] && (isALNUM(s[1]) || strchr(":'{$", s[1])))
715 else if (*s == '$') {
716 if (!lex_inpat) /* not a regexp, so $ must be var */
718 if (s + 1 < send && !strchr(")| \n\t", s[1]))
719 break; /* in regexp, $ might be tail anchor */
721 if (*s == '\\' && s+1 < send) {
723 if (*s && strchr(leave, *s)) {
728 if (lex_inwhat == OP_SUBST && !lex_inpat &&
729 isDIGIT(*s) && *s != '0' && !isDIGIT(s[1]))
732 warn("\\%c better written as $%c", *s, *s);
736 if (lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) {
742 if (lex_inwhat == OP_TRANS) {
750 case '0': case '1': case '2': case '3':
751 case '4': case '5': case '6': case '7':
752 *d++ = scan_oct(s, 3, &len);
756 *d++ = scan_hex(++s, 2, &len);
794 SvCUR_set(sv, d - SvPVX(sv));
797 if (SvCUR(sv) + 5 < SvLEN(sv)) {
798 SvLEN_set(sv, SvCUR(sv) + 1);
799 Renew(SvPVX(sv), SvLEN(sv), char);
802 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
808 /* This is the one truly awful dwimmer necessary to conflate C and sed. */
815 if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{'))
817 if (*s != '{' && *s != '[')
822 /* In a pattern, so maybe we have {n,m}. */
839 /* On the other hand, maybe we have a character class */
842 if (*s == ']' || *s == '^')
845 int weight = 2; /* let's weigh the evidence */
847 unsigned char un_char = 0, last_un_char;
848 char *send = strchr(s,']');
851 if (!send) /* has to be an expression */
857 else if (isDIGIT(*s)) {
859 if (isDIGIT(s[1]) && s[2] == ']')
865 for (; s < send; s++) {
866 last_un_char = un_char;
867 un_char = (unsigned char)*s;
872 weight -= seen[un_char] * 10;
874 scan_ident(s,send,tmpbuf,FALSE);
875 if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV))
880 else if (*s == '$' && s[1] &&
881 strchr("[#!%*<>()-=",s[1])) {
882 if (/*{*/ strchr("])} =",s[2]))
891 if (strchr("wds]",s[1]))
893 else if (seen['\''] || seen['"'])
895 else if (strchr("rnftbxcav",s[1]))
897 else if (isDIGIT(s[1])) {
899 while (s[1] && isDIGIT(s[1]))
909 if (strchr("aA01! ",last_un_char))
911 if (strchr("zZ79~",s[1]))
915 if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) &&
916 isALPHA(*s) && s[1] && isALPHA(s[1])) {
921 if (keyword(tmpbuf, d - tmpbuf))
924 if (un_char == last_un_char + 1)
926 weight -= seen[un_char];
931 if (weight >= 0) /* probably a character class */
939 intuit_method(start,gv)
943 char *s = start + (*start == '$');
954 s = scan_word(s, tmpbuf, TRUE, &len);
956 if (gv || last_lop_op == OP_PRINT || isUPPER(*tokenbuf))
961 return *s == '(' ? FUNCMETH : METHOD;
963 if (!keyword(tmpbuf, len)) {
964 indirgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVCV);
965 if (indirgv && GvCV(indirgv))
967 /* filehandle or package name makes it a method */
968 if (!gv || GvIO(indirgv) || gv_stashpv(tmpbuf, FALSE)) {
970 nextval[nexttoke].opval =
971 (OP*)newSVOP(OP_CONST, 0,
973 nextval[nexttoke].opval->op_private =
978 return *s == '(' ? FUNCMETH : METHOD;
988 char *pdb = getenv("PERL5DB");
992 return "BEGIN { require 'perl5db.pl' }";
998 /* Encoded script support. filter_add() effectively inserts a
999 * 'pre-processing' function into the current source input stream.
1000 * Note that the filter function only applies to the current source file
1001 * (e.g., it will not affect files 'require'd or 'use'd by this one).
1003 * The datasv parameter (which may be NULL) can be used to pass
1004 * private data to this instance of the filter. The filter function
1005 * can recover the SV using the FILTER_DATA macro and use it to
1006 * store private buffers and state information.
1008 * The supplied datasv parameter is upgraded to a PVIO type
1009 * and the IoDIRP field is used to store the function pointer.
1010 * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for
1011 * private use must be set using malloc'd pointers.
1013 static int filter_debug = 0;
1016 filter_add(funcp, datasv)
1020 if (!funcp){ /* temporary handy debugging hack to be deleted */
1021 filter_debug = atoi((char*)datasv);
1025 rsfp_filters = newAV();
1028 if (!SvUPGRADE(datasv, SVt_PVIO))
1029 die("Can't upgrade filter_add data to SVt_PVIO");
1030 IoDIRP(datasv) = (DIR*)funcp; /* stash funcp into spare field */
1032 warn("filter_add func %lx (%s)", funcp, SvPV(datasv,na));
1033 av_unshift(rsfp_filters, 1);
1034 av_store(rsfp_filters, 0, datasv) ;
1039 /* Delete most recently added instance of this filter function. */
1045 warn("filter_del func %lx", funcp);
1046 if (!rsfp_filters || AvFILL(rsfp_filters)<0)
1048 /* if filter is on top of stack (usual case) just pop it off */
1049 if (IoDIRP(FILTER_DATA(0)) == (void*)funcp){
1050 /* sv_free(av_pop(rsfp_filters)); */
1051 sv_free(av_shift(rsfp_filters));
1055 /* we need to search for the correct entry and clear it */
1056 die("filter_del can only delete in reverse order (currently)");
1060 /* Invoke the n'th filter function for the current rsfp. */
1062 filter_read(idx, buf_sv, maxlen)
1065 int maxlen; /* 0 = read one text line */
1072 if (idx > AvFILL(rsfp_filters)){ /* Any more filters? */
1073 /* Provide a default input filter to make life easy. */
1074 /* Note that we append to the line. This is handy. */
1076 warn("filter_read %d: from rsfp\n", idx);
1080 int old_len = SvCUR(buf_sv) ;
1082 /* ensure buf_sv is large enough */
1083 SvGROW(buf_sv, old_len + maxlen) ;
1084 if ((len = fread(SvPVX(buf_sv) + old_len, 1, maxlen, rsfp)) <= 0){
1086 return -1; /* error */
1088 return 0 ; /* end of file */
1090 SvCUR_set(buf_sv, old_len + len) ;
1093 if (sv_gets(buf_sv, rsfp, SvCUR(buf_sv)) == NULL) {
1095 return -1; /* error */
1097 return 0 ; /* end of file */
1100 return SvCUR(buf_sv);
1102 /* Skip this filter slot if filter has been deleted */
1103 if ( (datasv = FILTER_DATA(idx)) == &sv_undef){
1105 warn("filter_read %d: skipped (filter deleted)\n", idx);
1106 return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */
1108 /* Get function pointer hidden within datasv */
1109 funcp = (filter_t)IoDIRP(datasv);
1111 warn("filter_read %d: via function %lx (%s)\n",
1112 idx, funcp, SvPV(datasv,na));
1113 /* Call function. The function is expected to */
1114 /* call "FILTER_READ(idx+1, buf_sv)" first. */
1115 /* Return: <0:error, =0:eof, >0:not eof */
1116 return (*funcp)(idx, buf_sv, maxlen);
1126 SvCUR_set(sv, 0); /* start with empty line */
1127 if (FILTER_READ(0, sv, 0) > 0)
1128 return ( SvPVX(sv) ) ;
1133 return (sv_gets(sv, fp, 0)) ;
1139 static char* exp_name[] =
1140 { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "TERMBLOCK" };
1143 extern int yychar; /* last token */
1153 switch (lex_state) {
1155 case LEX_NORMAL: /* Some compilers will produce faster */
1156 case LEX_INTERPNORMAL: /* code if we comment these out. */
1162 yylval = nextval[nexttoke];
1164 lex_state = lex_defer;
1165 expect = lex_expect;
1166 lex_defer = LEX_NORMAL;
1168 return(nexttype[nexttoke]);
1170 case LEX_INTERPCASEMOD:
1172 if (bufptr != bufend && *bufptr != '\\')
1173 croak("panic: INTERPCASEMOD");
1175 if (bufptr == bufend || bufptr[1] == 'E') {
1178 oldmod = lex_casestack[--lex_casemods];
1179 lex_casestack[lex_casemods] = '\0';
1180 if (bufptr != bufend && strchr("LUQ", oldmod)) {
1182 lex_state = LEX_INTERPCONCAT;
1186 if (bufptr != bufend)
1188 lex_state = LEX_INTERPCONCAT;
1193 if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3))
1194 tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */
1195 if (strchr("LU", *s) &&
1196 (strchr(lex_casestack, 'L') || strchr(lex_casestack, 'U')))
1198 lex_casestack[--lex_casemods] = '\0';
1201 if (lex_casemods > 10) {
1202 char* newlb = (char*)realloc(lex_casestack, lex_casemods + 2);
1203 if (newlb != lex_casestack) {
1205 lex_casestack = newlb;
1208 lex_casestack[lex_casemods++] = *s;
1209 lex_casestack[lex_casemods] = '\0';
1210 lex_state = LEX_INTERPCONCAT;
1211 nextval[nexttoke].ival = 0;
1214 nextval[nexttoke].ival = OP_LCFIRST;
1216 nextval[nexttoke].ival = OP_UCFIRST;
1218 nextval[nexttoke].ival = OP_LC;
1220 nextval[nexttoke].ival = OP_UC;
1222 nextval[nexttoke].ival = OP_QUOTEMETA;
1224 croak("panic: yylex");
1236 case LEX_INTERPSTART:
1237 if (bufptr == bufend)
1238 return sublex_done();
1240 lex_dojoin = (*bufptr == '@');
1241 lex_state = LEX_INTERPNORMAL;
1243 nextval[nexttoke].ival = 0;
1245 force_ident("\"", '$');
1246 nextval[nexttoke].ival = 0;
1248 nextval[nexttoke].ival = 0;
1250 nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */
1261 case LEX_INTERPENDMAYBE:
1262 if (intuit_more(bufptr)) {
1263 lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */
1271 lex_state = LEX_INTERPCONCAT;
1275 case LEX_INTERPCONCAT:
1278 croak("panic: INTERPCONCAT");
1280 if (bufptr == bufend)
1281 return sublex_done();
1283 if (SvIVX(linestr) == '\'') {
1284 SV *sv = newSVsv(linestr);
1287 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
1291 s = scan_const(bufptr);
1293 lex_state = LEX_INTERPCASEMOD;
1295 lex_state = LEX_INTERPSTART;
1299 nextval[nexttoke] = yylval;
1312 lex_state = LEX_NORMAL;
1313 s = scan_formline(bufptr);
1320 oldoldbufptr = oldbufptr;
1323 fprintf(stderr,"### Tokener expecting %s at %s\n", exp_name[expect], s);
1329 warn("Unrecognized character \\%03o ignored", *s++ & 255);
1333 goto fake_eof; /* emulate EOF on ^D or ^Z */
1337 yyerror("Missing right bracket");
1341 goto retry; /* ignore stray nulls */
1344 if (!in_eval && !preambled) {
1346 sv_setpv(linestr,incl_perldb());
1348 sv_catpv(linestr,";");
1350 while(AvFILL(preambleav) >= 0) {
1351 SV *tmpsv = av_shift(preambleav);
1352 sv_catsv(linestr, tmpsv);
1353 sv_catpv(linestr, ";");
1356 sv_free((SV*)preambleav);
1359 if (minus_n || minus_p) {
1360 sv_catpv(linestr, "LINE: while (<>) {");
1362 sv_catpv(linestr,"chomp;");
1366 if ( splitstr[0] == '/' ||
1367 splitstr[0] == '\'' ||
1368 splitstr[0] == '"' )
1369 sprintf( tmpbuf1, "@F=split(%s);", splitstr );
1371 sprintf( tmpbuf1, "@F=split('%s');", splitstr );
1372 sv_catpv(linestr,tmpbuf1);
1375 sv_catpv(linestr,"@F=split(' ');");
1378 sv_catpv(linestr, "\n");
1379 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1380 bufend = SvPVX(linestr) + SvCUR(linestr);
1381 if (perldb && curstash != debstash) {
1382 SV *sv = NEWSV(85,0);
1384 sv_upgrade(sv, SVt_PVMG);
1385 sv_setsv(sv,linestr);
1386 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1391 if ((s = filter_gets(linestr, rsfp)) == Nullch) {
1394 if (preprocess && !in_eval)
1395 (void)my_pclose(rsfp);
1396 else if ((FILE*)rsfp == stdin)
1402 if (!in_eval && (minus_n || minus_p)) {
1403 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
1404 sv_catpv(linestr,";}");
1405 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1406 bufend = SvPVX(linestr) + SvCUR(linestr);
1407 minus_n = minus_p = 0;
1410 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1411 sv_setpv(linestr,"");
1412 TOKEN(';'); /* not infinite loop because rsfp is NULL now */
1415 if (*s == '#' && s[1] == '!' && instr(s,"perl"))
1418 /* Incest with pod. */
1419 if (*s == '=' && strnEQ(s, "=cut", 4)) {
1420 sv_setpv(linestr, "");
1421 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1422 bufend = SvPVX(linestr) + SvCUR(linestr);
1427 } while (doextract);
1428 oldoldbufptr = oldbufptr = bufptr = s;
1429 if (perldb && curstash != debstash) {
1430 SV *sv = NEWSV(85,0);
1432 sv_upgrade(sv, SVt_PVMG);
1433 sv_setsv(sv,linestr);
1434 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1436 bufend = SvPVX(linestr) + SvCUR(linestr);
1437 if (curcop->cop_line == 1) {
1438 while (s < bufend && isSPACE(*s))
1440 if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */
1442 if (!in_eval && *s == '#' && s[1] == '!') {
1443 d = instr(s,"perl -");
1445 d = instr(s,"perl");
1448 !instr(s,"indir") &&
1449 instr(origargv[0],"perl"))
1458 while (s < bufend && !isSPACE(*s))
1461 while (s < bufend && isSPACE(*s))
1464 Newz(899,newargv,origargc+3,char*);
1466 while (s < bufend && !isSPACE(*s))
1469 Copy(origargv+1, newargv+2, origargc+1, char*);
1475 croak("Can't exec %s", cmd);
1478 int oldpdb = perldb;
1482 while (*d && !isSPACE(*d)) d++;
1483 while (*d == ' ') d++;
1486 while (d = moreswitches(d)) ;
1487 if (perldb && !oldpdb ||
1491 sv_setpv(linestr, "");
1492 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1493 bufend = SvPVX(linestr) + SvCUR(linestr);
1496 (void)gv_fetchfile(origfilename);
1503 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1505 lex_state = LEX_FORMLINE;
1509 case ' ': case '\t': case '\f': case '\r': case 013:
1514 if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) {
1516 while (s < d && *s != '\n')
1521 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1523 lex_state = LEX_FORMLINE;
1533 if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) {
1538 while (s < bufend && (*s == ' ' || *s == '\t'))
1541 if (strnEQ(s,"=>",2)) {
1543 warn("Ambiguous use of -%c => resolved to \"-%c\" =>",
1545 s = force_word(bufptr,WORD,FALSE,FALSE,FALSE);
1546 OPERATOR('-'); /* unary minus */
1548 last_uni = oldbufptr;
1549 last_lop_op = OP_FTEREAD; /* good enough */
1551 case 'r': FTST(OP_FTEREAD);
1552 case 'w': FTST(OP_FTEWRITE);
1553 case 'x': FTST(OP_FTEEXEC);
1554 case 'o': FTST(OP_FTEOWNED);
1555 case 'R': FTST(OP_FTRREAD);
1556 case 'W': FTST(OP_FTRWRITE);
1557 case 'X': FTST(OP_FTREXEC);
1558 case 'O': FTST(OP_FTROWNED);
1559 case 'e': FTST(OP_FTIS);
1560 case 'z': FTST(OP_FTZERO);
1561 case 's': FTST(OP_FTSIZE);
1562 case 'f': FTST(OP_FTFILE);
1563 case 'd': FTST(OP_FTDIR);
1564 case 'l': FTST(OP_FTLINK);
1565 case 'p': FTST(OP_FTPIPE);
1566 case 'S': FTST(OP_FTSOCK);
1567 case 'u': FTST(OP_FTSUID);
1568 case 'g': FTST(OP_FTSGID);
1569 case 'k': FTST(OP_FTSVTX);
1570 case 'b': FTST(OP_FTBLK);
1571 case 'c': FTST(OP_FTCHR);
1572 case 't': FTST(OP_FTTTY);
1573 case 'T': FTST(OP_FTTEXT);
1574 case 'B': FTST(OP_FTBINARY);
1575 case 'M': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTMTIME);
1576 case 'A': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTATIME);
1577 case 'C': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTCTIME);
1579 croak("Unrecognized file test: -%c", tmp);
1586 if (expect == XOPERATOR)
1591 else if (*s == '>') {
1594 if (isIDFIRST(*s)) {
1595 s = force_word(s,METHOD,FALSE,TRUE,FALSE);
1603 if (expect == XOPERATOR)
1606 if (isSPACE(*s) || !isSPACE(*bufptr))
1608 OPERATOR('-'); /* unary minus */
1615 if (expect == XOPERATOR)
1620 if (expect == XOPERATOR)
1623 if (isSPACE(*s) || !isSPACE(*bufptr))
1629 if (expect != XOPERATOR) {
1630 s = scan_ident(s, bufend, tokenbuf, TRUE);
1632 force_ident(tokenbuf, '*');
1645 if (expect != XOPERATOR) {
1646 s = scan_ident(s, bufend, tokenbuf + 1, TRUE);
1651 if (strchr(tokenbuf,':'))
1652 croak(no_myglob,tokenbuf);
1653 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1654 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
1655 force_next(PRIVATEREF);
1658 if (!strchr(tokenbuf,':')) {
1659 if (tmp = pad_findmy(tokenbuf)) {
1660 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1661 nextval[nexttoke].opval->op_targ = tmp;
1662 force_next(PRIVATEREF);
1666 force_ident(tokenbuf + 1, *tokenbuf);
1694 if (last_lop == oldoldbufptr || last_uni == oldoldbufptr)
1695 oldbufptr = oldoldbufptr; /* allow print(STDOUT 123) */
1700 if (curcop->cop_line < copline)
1701 copline = curcop->cop_line;
1712 if (lex_brackets <= 0)
1713 yyerror("Unmatched right bracket");
1716 if (lex_state == LEX_INTERPNORMAL) {
1717 if (lex_brackets == 0) {
1718 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
1719 lex_state = LEX_INTERPEND;
1726 if (lex_brackets > 100) {
1727 char* newlb = (char*)realloc(lex_brackstack, lex_brackets + 1);
1728 if (newlb != lex_brackstack) {
1730 lex_brackstack = newlb;
1735 if (lex_formbrack) {
1739 if (oldoldbufptr == last_lop)
1740 lex_brackstack[lex_brackets++] = XTERM;
1742 lex_brackstack[lex_brackets++] = XOPERATOR;
1743 OPERATOR(HASHBRACK);
1746 while (s < bufend && (*s == ' ' || *s == '\t'))
1748 if (s < bufend && isALPHA(*s)) {
1749 d = scan_word(s, tokenbuf, FALSE, &len);
1750 while (d < bufend && (*d == ' ' || *d == '\t'))
1754 (keyword(tokenbuf, len) ||
1755 perl_get_cv(tokenbuf, FALSE) ))
1756 warn("Ambiguous use of {%s} resolved to {\"%s\"}",
1757 tokenbuf, tokenbuf);
1758 s = force_word(s,WORD,FALSE,TRUE,FALSE);
1763 lex_brackstack[lex_brackets++] = XSTATE;
1767 lex_brackstack[lex_brackets++] = XOPERATOR;
1772 if (oldoldbufptr == last_lop)
1773 lex_brackstack[lex_brackets++] = XTERM;
1775 lex_brackstack[lex_brackets++] = XOPERATOR;
1778 OPERATOR(HASHBRACK);
1780 for (t = s; t < bufend && isALNUM(*t); t++) ;
1782 else if (*s == '\'' || *s == '"') {
1789 while (t < bufend && isSPACE(*t))
1791 if ((*t == ',' && !isLOWER(*s)) || (*t == '=' && t[1] == '>'))
1792 OPERATOR(HASHBRACK);
1796 lex_brackstack[lex_brackets-1] = XSTATE;
1802 yylval.ival = curcop->cop_line;
1803 if (isSPACE(*s) || *s == '#')
1804 copline = NOLINE; /* invalidate current command line number */
1809 if (lex_brackets <= 0)
1810 yyerror("Unmatched right bracket");
1812 expect = (expectation)lex_brackstack[--lex_brackets];
1813 if (lex_brackets < lex_formbrack)
1815 if (lex_state == LEX_INTERPNORMAL) {
1816 if (lex_brackets == 0) {
1817 if (lex_fakebrack) {
1818 lex_state = LEX_INTERPEND;
1820 return yylex(); /* ignore fake brackets */
1822 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
1823 lex_state = LEX_INTERPEND;
1826 if (lex_brackets < lex_fakebrack) {
1829 return yylex(); /* ignore fake brackets */
1839 if (expect == XOPERATOR) {
1840 if (dowarn && isALPHA(*s) && bufptr == SvPVX(linestr)) {
1848 s = scan_ident(s-1, bufend, tokenbuf, TRUE);
1851 force_ident(tokenbuf, '&');
1855 yylval.ival = (OPpENTERSUB_AMPER<<8);
1874 if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp))
1875 warn("Reversed %c= operator",tmp);
1877 if (expect == XSTATE && isALPHA(tmp) &&
1878 (s == SvPVX(linestr)+1 || s[-2] == '\n') )
1880 if (in_eval && !rsfp) {
1885 if (strnEQ(s,"=cut",4)) {
1902 if (lex_brackets < lex_formbrack) {
1904 for (t = s; *t == ' ' || *t == '\t'; t++) ;
1905 if (*t == '\n' || *t == '#') {
1923 if (expect != XOPERATOR) {
1924 if (s[1] != '<' && !strchr(s,'>'))
1927 s = scan_heredoc(s);
1929 s = scan_inputsymbol(s);
1930 TERM(sublex_start());
1935 SHop(OP_LEFT_SHIFT);
1949 SHop(OP_RIGHT_SHIFT);
1956 if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) {
1957 s = scan_ident(s+1, bufend, tokenbuf+1, FALSE);
1958 if (expect == XOPERATOR) {
1959 if (lex_formbrack && lex_brackets == lex_formbrack) {
1962 return ','; /* grandfather non-comma-format format */
1965 no_op("Array length",s);
1967 else if (!tokenbuf[1])
1969 if (!strchr(tokenbuf+1,':')) {
1971 if (tmp = pad_findmy(tokenbuf)) {
1972 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1973 nextval[nexttoke].opval->op_targ = tmp;
1975 force_next(PRIVATEREF);
1980 force_ident(tokenbuf+1, *tokenbuf);
1983 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
1984 if (expect == XOPERATOR) {
1985 if (lex_formbrack && lex_brackets == lex_formbrack) {
1988 return ','; /* grandfather non-comma-format format */
1994 expectation oldexpect = expect;
1996 /* This kludge not intended to be bulletproof. */
1997 if (tokenbuf[1] == '[' && !tokenbuf[2]) {
1998 yylval.opval = newSVOP(OP_CONST, 0,
1999 newSViv((IV)compiling.cop_arybase));
2000 yylval.opval->op_private = OPpCONST_ARYBASE;
2006 if (*s == '[' && oldexpect != XREF) {
2007 for (t = s+1; isSPACE(*t) || isALNUM(*t) || *t == '$'; t++) ;
2009 bufptr = skipspace(bufptr);
2010 while (t < bufend && *t != ']') t++;
2011 warn("Multidimensional syntax %.*s not supported",
2012 t-bufptr+1, bufptr);
2015 if (*s == '{' && strEQ(tokenbuf, "$SIG") &&
2016 (t = strchr(s,'}')) && (t = strchr(t,'='))) {
2019 for (t++; isSPACE(*t); t++) ;
2020 if (isIDFIRST(*t)) {
2021 t = scan_word(t, tmpbuf, TRUE, &len);
2022 if (*t != '(' && perl_get_cv(tmpbuf, FALSE))
2023 warn("You need to quote \"%s\"", tmpbuf);
2028 if (lex_state == LEX_NORMAL && isSPACE(*s)) {
2029 bool islop = (last_lop == oldoldbufptr);
2031 if (!islop || last_lop_op == OP_GREPSTART)
2033 else if (strchr("$@\"'`q", *s))
2034 expect = XTERM; /* e.g. print $fh "foo" */
2035 else if (strchr("&*<%", *s) && isIDFIRST(s[1]))
2036 expect = XTERM; /* e.g. print $fh &sub */
2037 else if (isDIGIT(*s))
2038 expect = XTERM; /* e.g. print $fh 3 */
2039 else if (*s == '.' && isDIGIT(s[1]))
2040 expect = XTERM; /* e.g. print $fh .3 */
2041 else if (strchr("/?-+", *s) && !isSPACE(s[1]))
2042 expect = XTERM; /* e.g. print $fh -1 */
2043 else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]))
2044 expect = XTERM; /* print $fh <<"EOF" */
2047 if (strchr(tokenbuf,':'))
2048 croak(no_myglob,tokenbuf);
2049 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2050 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
2051 force_next(PRIVATEREF);
2053 else if (!strchr(tokenbuf,':')) {
2054 if (oldexpect != XREF || oldoldbufptr == last_lop) {
2055 if (intuit_more(s)) {
2062 if (tmp = pad_findmy(tokenbuf)) {
2063 if (!tokenbuf[2] && *tokenbuf =='$' &&
2064 tokenbuf[1] <= 'b' && tokenbuf[1] >= 'a')
2066 for (d = in_eval ? oldoldbufptr : SvPVX(linestr);
2067 d < bufend && *d != '\n';
2070 if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) {
2071 croak("Can't use \"my %s\" in sort comparison",
2076 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2077 nextval[nexttoke].opval->op_targ = tmp;
2078 force_next(PRIVATEREF);
2081 force_ident(tokenbuf+1, *tokenbuf);
2084 force_ident(tokenbuf+1, *tokenbuf);
2088 yyerror("Final $ should be \\$ or $name");
2094 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
2095 if (expect == XOPERATOR)
2103 if (strchr(tokenbuf,':'))
2104 croak(no_myglob,tokenbuf);
2105 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2106 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
2107 force_next(PRIVATEREF);
2110 else if (!strchr(tokenbuf,':')) {
2111 if (intuit_more(s)) {
2115 if (tmp = pad_findmy(tokenbuf)) {
2116 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2117 nextval[nexttoke].opval->op_targ = tmp;
2118 force_next(PRIVATEREF);
2123 /* Force them to make up their mind on "@foo". */
2124 if (lex_state != LEX_NORMAL && !lex_brackets &&
2125 ( !(gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV)) ||
2131 sprintf(tmpbuf, "Literal @%s now requires backslash",tokenbuf+1);
2135 /* Warn about @ where they meant $. */
2137 if (*s == '[' || *s == '{') {
2139 while (*t && (isALNUM(*t) || strchr(" \t$#+-'\"", *t)))
2141 if (*t == '}' || *t == ']') {
2143 bufptr = skipspace(bufptr);
2144 warn("Scalar value %.*s better written as $%.*s",
2145 t-bufptr, bufptr, t-bufptr-1, bufptr+1);
2149 force_ident(tokenbuf+1, *tokenbuf);
2153 yyerror("Final @ should be \\@ or @name");
2158 case '/': /* may either be division or pattern */
2159 case '?': /* may either be conditional or pattern */
2160 if (expect != XOPERATOR) {
2163 TERM(sublex_start());
2171 if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' &&
2172 (s == SvPVX(linestr) || s[-1] == '\n') ) {
2177 if (expect == XOPERATOR || !isDIGIT(s[1])) {
2183 yylval.ival = OPf_SPECIAL;
2189 if (expect != XOPERATOR)
2194 case '0': case '1': case '2': case '3': case '4':
2195 case '5': case '6': case '7': case '8': case '9':
2197 if (expect == XOPERATOR)
2203 if (expect == XOPERATOR) {
2204 if (lex_formbrack && lex_brackets == lex_formbrack) {
2207 return ','; /* grandfather non-comma-format format */
2213 missingterm((char*)0);
2214 yylval.ival = OP_CONST;
2215 TERM(sublex_start());
2219 if (expect == XOPERATOR) {
2220 if (lex_formbrack && lex_brackets == lex_formbrack) {
2223 return ','; /* grandfather non-comma-format format */
2229 missingterm((char*)0);
2230 yylval.ival = OP_CONST;
2231 for (d = SvPV(lex_stuff, len); len; len--, d++) {
2232 if (*d == '$' || *d == '@' || *d == '\\') {
2233 yylval.ival = OP_STRINGIFY;
2237 TERM(sublex_start());
2241 if (expect == XOPERATOR)
2242 no_op("Backticks",s);
2244 missingterm((char*)0);
2245 yylval.ival = OP_BACKTICK;
2247 TERM(sublex_start());
2251 if (dowarn && lex_inwhat && isDIGIT(*s))
2252 warn("Can't use \\%c to mean $%c in expression", *s, *s);
2253 if (expect == XOPERATOR)
2254 no_op("Backslash",s);
2258 if (isDIGIT(s[1]) && expect == XOPERATOR) {
2294 s = scan_word(s, tokenbuf, FALSE, &len);
2296 if (*s == ':' && s[1] == ':' && strNE(tokenbuf, "CORE"))
2299 tmp = keyword(tokenbuf, len);
2301 /* Is this a word before a => operator? */
2303 while (d < bufend && (*d == ' ' || *d == '\t'))
2304 d++; /* no comments skipped here, or s### is misparsed */
2305 if (strnEQ(d,"=>",2)) {
2307 if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE)))
2308 warn("Ambiguous use of %s => resolved to \"%s\" =>",
2309 tokenbuf, tokenbuf);
2310 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2311 yylval.opval->op_private = OPpCONST_BARE;
2315 if (tmp < 0) { /* second-class keyword? */
2317 if (expect != XOPERATOR &&
2318 (*s != ':' || s[1] != ':') &&
2319 (gv = gv_fetchpv(tokenbuf, FALSE, SVt_PVCV)) &&
2331 default: /* not a keyword */
2334 char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]);
2336 /* Get the rest if it looks like a package qualifier */
2338 if (*s == '\'' || *s == ':' && s[1] == ':') {
2339 s = scan_word(s, tokenbuf + len, TRUE, &len);
2341 croak("Bad name after %s::", tokenbuf);
2344 /* Do special processing at start of statement. */
2346 if (expect == XSTATE) {
2347 while (isSPACE(*s)) s++;
2348 if (*s == ':') { /* It's a label. */
2349 yylval.pval = savepv(tokenbuf);
2355 else if (expect == XOPERATOR) {
2356 if (bufptr == SvPVX(linestr)) {
2362 no_op("Bare word",s);
2365 /* Look for a subroutine with this name in current package. */
2367 gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV);
2369 /* Presume this is going to be a bareword of some sort. */
2372 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2373 yylval.opval->op_private = OPpCONST_BARE;
2375 /* See if it's the indirect object for a list operator. */
2378 oldoldbufptr < bufptr &&
2379 (oldoldbufptr == last_lop || oldoldbufptr == last_uni) &&
2380 /* NO SKIPSPACE BEFORE HERE! */
2382 (opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) )
2384 bool immediate_paren = *s == '(';
2386 /* (Now we can afford to cross potential line boundary.) */
2389 /* Two barewords in a row may indicate method call. */
2391 if ((isALPHA(*s) || *s == '$') && (tmp=intuit_method(s,gv)))
2394 /* If not a declared subroutine, it's an indirect object. */
2395 /* (But it's an indir obj regardless for sort.) */
2397 if ((last_lop_op == OP_SORT ||
2398 (!immediate_paren && (!gv || !GvCV(gv))) ) &&
2399 (last_lop_op != OP_MAPSTART && last_lop_op != OP_GREPSTART)){
2400 expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR;
2405 /* If followed by a paren, it's certainly a subroutine. */
2411 nextval[nexttoke].opval = yylval.opval;
2418 /* If followed by var or block, call it a method (unless sub) */
2420 if ((*s == '$' || *s == '{') && (!gv || !GvCV(gv))) {
2421 last_lop = oldbufptr;
2422 last_lop_op = OP_METHOD;
2426 /* If followed by a bareword, see if it looks like indir obj. */
2428 if ((isALPHA(*s) || *s == '$') && (tmp = intuit_method(s,gv)))
2431 /* Not a method, so call it a subroutine (if defined) */
2433 if (gv && GvCV(gv)) {
2436 nextval[nexttoke].opval = yylval.opval;
2442 if (lastchar == '-')
2443 warn("Ambiguous use of -%s resolved as -&%s()",
2444 tokenbuf, tokenbuf);
2445 last_lop = oldbufptr;
2446 last_lop_op = OP_ENTERSUB;
2447 /* Resolve to GV now. */
2448 op_free(yylval.opval);
2449 yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv));
2450 /* Is there a prototype? */
2453 char *proto = SvPV((SV*)cv, len);
2456 if (strEQ(proto, "$"))
2458 if (*proto == '&' && *s == '{') {
2459 sv_setpv(subname,"__ANON__");
2463 nextval[nexttoke].opval = yylval.opval;
2469 if (hints & HINT_STRICT_SUBS &&
2472 last_lop_op != OP_ACCEPT &&
2473 last_lop_op != OP_PIPE_OP &&
2474 last_lop_op != OP_SOCKPAIR)
2477 "Bareword \"%s\" not allowed while \"strict subs\" in use",
2482 /* Call it a bare word */
2486 if (lastchar != '-') {
2487 for (d = tokenbuf; *d && isLOWER(*d); d++) ;
2489 warn(warn_reserved, tokenbuf);
2492 if (lastchar && strchr("*%&", lastchar)) {
2493 warn("Operator or semicolon missing before %c%s",
2494 lastchar, tokenbuf);
2495 warn("Ambiguous use of %c resolved as operator %c",
2496 lastchar, lastchar);
2502 case KEY___FILE__: {
2503 if (tokenbuf[2] == 'L')
2504 (void)sprintf(tokenbuf,"%ld",(long)curcop->cop_line);
2506 strcpy(tokenbuf, SvPVX(GvSV(curcop->cop_filegv)));
2507 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2516 if (rsfp && (!in_eval || tokenbuf[2] == 'D')) {
2518 char *pname = "main";
2519 if (tokenbuf[2] == 'D')
2520 pname = HvNAME(curstash ? curstash : defstash);
2521 sprintf(dname,"%s::DATA", pname);
2522 gv = gv_fetchpv(dname,TRUE, SVt_PVIO);
2525 GvIOp(gv) = newIO();
2526 IoIFP(GvIOp(gv)) = rsfp;
2527 #if defined(HAS_FCNTL) && defined(F_SETFD)
2529 int fd = fileno(rsfp);
2530 fcntl(fd,F_SETFD,fd >= 3);
2534 IoTYPE(GvIOp(gv)) = '|';
2535 else if ((FILE*)rsfp == stdin)
2536 IoTYPE(GvIOp(gv)) = '-';
2538 IoTYPE(GvIOp(gv)) = '<';
2548 if (expect == XSTATE) {
2555 if (*s == ':' && s[1] == ':') {
2558 s = scan_word(s, tokenbuf, FALSE, &len);
2559 tmp = keyword(tokenbuf, len);
2573 LOP(OP_ACCEPT,XTERM);
2579 LOP(OP_ATAN2,XTERM);
2588 LOP(OP_BLESS,XTERM);
2597 (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */
2617 LOP(OP_CRYPT,XTERM);
2621 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
2622 if (*d != '0' && isDIGIT(*d))
2623 yywarn("chmod: mode argument is missing initial 0");
2625 LOP(OP_CHMOD,XTERM);
2628 LOP(OP_CHOWN,XTERM);
2631 LOP(OP_CONNECT,XTERM);
2647 s = force_word(s,WORD,FALSE,TRUE,FALSE);
2651 hints |= HINT_BLOCK_SCOPE;
2661 gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV);
2662 LOP(OP_DBMOPEN,XTERM);
2668 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2675 yylval.ival = curcop->cop_line;
2689 expect = (*s == '{') ? XTERMBLOCK : XTERM;
2690 UNIBRACK(OP_ENTEREVAL);
2705 case KEY_endhostent:
2711 case KEY_endservent:
2714 case KEY_endprotoent:
2725 yylval.ival = curcop->cop_line;
2726 while (s < bufend && isSPACE(*s))
2729 croak("Missing $ on loop variable");
2733 LOP(OP_FORMLINE,XTERM);
2739 LOP(OP_FCNTL,XTERM);
2745 LOP(OP_FLOCK,XTERM);
2754 LOP(OP_GREPSTART, *s == '(' ? XTERM : XREF);
2757 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2772 case KEY_getpriority:
2773 LOP(OP_GETPRIORITY,XTERM);
2775 case KEY_getprotobyname:
2778 case KEY_getprotobynumber:
2779 LOP(OP_GPBYNUMBER,XTERM);
2781 case KEY_getprotoent:
2793 case KEY_getpeername:
2794 UNI(OP_GETPEERNAME);
2796 case KEY_gethostbyname:
2799 case KEY_gethostbyaddr:
2800 LOP(OP_GHBYADDR,XTERM);
2802 case KEY_gethostent:
2805 case KEY_getnetbyname:
2808 case KEY_getnetbyaddr:
2809 LOP(OP_GNBYADDR,XTERM);
2814 case KEY_getservbyname:
2815 LOP(OP_GSBYNAME,XTERM);
2817 case KEY_getservbyport:
2818 LOP(OP_GSBYPORT,XTERM);
2820 case KEY_getservent:
2823 case KEY_getsockname:
2824 UNI(OP_GETSOCKNAME);
2826 case KEY_getsockopt:
2827 LOP(OP_GSOCKOPT,XTERM);
2849 yylval.ival = curcop->cop_line;
2853 LOP(OP_INDEX,XTERM);
2859 LOP(OP_IOCTL,XTERM);
2871 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2903 LOP(OP_LISTEN,XTERM);
2910 TERM(sublex_start());
2913 LOP(OP_MAPSTART,XREF);
2916 LOP(OP_MKDIR,XTERM);
2919 LOP(OP_MSGCTL,XTERM);
2922 LOP(OP_MSGGET,XTERM);
2925 LOP(OP_MSGRCV,XTERM);
2928 LOP(OP_MSGSND,XTERM);
2936 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2943 if (expect != XSTATE)
2944 yyerror("\"no\" not allowed in expression");
2945 s = force_word(s,WORD,FALSE,TRUE,FALSE);
2954 if (isIDFIRST(*s)) {
2956 for (d = s; isALNUM(*d); d++) ;
2958 if (strchr("|&*+-=!?:.", *t))
2959 warn("Precedence problem: open %.*s should be open(%.*s)",
2965 yylval.ival = OP_OR;
2975 LOP(OP_OPEN_DIR,XTERM);
2978 checkcomma(s,tokenbuf,"filehandle");
2982 checkcomma(s,tokenbuf,"filehandle");
3001 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3005 LOP(OP_PIPE_OP,XTERM);
3010 missingterm((char*)0);
3011 yylval.ival = OP_CONST;
3012 TERM(sublex_start());
3020 missingterm((char*)0);
3022 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff));
3026 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(" ",1));
3029 yylval.ival = OP_SPLIT;
3033 last_lop = oldbufptr;
3034 last_lop_op = OP_SPLIT;
3040 missingterm((char*)0);
3041 yylval.ival = OP_STRINGIFY;
3042 if (SvIVX(lex_stuff) == '\'')
3043 SvIVX(lex_stuff) = 0; /* qq'$foo' should intepolate */
3044 TERM(sublex_start());
3049 missingterm((char*)0);
3050 yylval.ival = OP_BACKTICK;
3052 TERM(sublex_start());
3059 s = force_word(s,WORD,TRUE,TRUE,FALSE);
3060 if (isIDFIRST(*tokenbuf))
3061 gv_stashpv(tokenbuf, TRUE);
3063 yyerror("<> should be quotes");
3070 s = force_word(s,WORD,TRUE,FALSE,FALSE);
3074 LOP(OP_RENAME,XTERM);
3083 LOP(OP_RINDEX,XTERM);
3106 LOP(OP_REVERSE,XTERM);
3117 TERM(sublex_start());
3119 TOKEN(1); /* force error */
3128 LOP(OP_SELECT,XTERM);
3134 LOP(OP_SEMCTL,XTERM);
3137 LOP(OP_SEMGET,XTERM);
3140 LOP(OP_SEMOP,XTERM);
3146 LOP(OP_SETPGRP,XTERM);
3148 case KEY_setpriority:
3149 LOP(OP_SETPRIORITY,XTERM);
3151 case KEY_sethostent:
3157 case KEY_setservent:
3160 case KEY_setprotoent:
3170 LOP(OP_SEEKDIR,XTERM);
3172 case KEY_setsockopt:
3173 LOP(OP_SSOCKOPT,XTERM);
3179 LOP(OP_SHMCTL,XTERM);
3182 LOP(OP_SHMGET,XTERM);
3185 LOP(OP_SHMREAD,XTERM);
3188 LOP(OP_SHMWRITE,XTERM);
3191 LOP(OP_SHUTDOWN,XTERM);
3200 LOP(OP_SOCKET,XTERM);
3202 case KEY_socketpair:
3203 LOP(OP_SOCKPAIR,XTERM);
3206 checkcomma(s,tokenbuf,"subroutine name");
3208 if (*s == ';' || *s == ')') /* probably a close */
3209 croak("sort is now a reserved word");
3211 s = force_word(s,WORD,TRUE,TRUE,TRUE);
3215 LOP(OP_SPLIT,XTERM);
3218 LOP(OP_SPRINTF,XTERM);
3221 LOP(OP_SPLICE,XTERM);
3237 LOP(OP_SUBSTR,XTERM);
3244 if (isIDFIRST(*s) || *s == '\'' || *s == ':') {
3247 d = scan_word(s, tmpbuf, TRUE, &len);
3248 if (strchr(tmpbuf, ':'))
3249 sv_setpv(subname, tmpbuf);
3251 sv_setsv(subname,curstname);
3252 sv_catpvn(subname,"::",2);
3253 sv_catpvn(subname,tmpbuf,len);
3255 s = force_word(s,WORD,FALSE,TRUE,TRUE);
3259 expect = XTERMBLOCK;
3260 sv_setpv(subname,"?");
3263 if (tmp == KEY_format) {
3266 lex_formbrack = lex_brackets + 1;
3270 /* Look for a prototype */
3275 SvREFCNT_dec(lex_stuff);
3277 croak("Prototype not terminated");
3280 nextval[1] = nextval[0];
3281 nexttype[1] = nexttype[0];
3282 nextval[0].opval = (OP*)newSVOP(OP_CONST, 0, lex_stuff);
3283 nexttype[0] = THING;
3284 if (nexttoke == 1) {
3285 lex_defer = lex_state;
3286 lex_expect = expect;
3287 lex_state = LEX_KNOWNEXT;
3292 if (*SvPV(subname,na) == '?') {
3293 sv_setpv(subname,"__ANON__");
3300 LOP(OP_SYSTEM,XREF);
3303 LOP(OP_SYMLINK,XTERM);
3306 LOP(OP_SYSCALL,XTERM);
3309 LOP(OP_SYSOPEN,XTERM);
3312 LOP(OP_SYSREAD,XTERM);
3315 LOP(OP_SYSWRITE,XTERM);
3319 TERM(sublex_start());
3340 LOP(OP_TRUNCATE,XTERM);
3352 yylval.ival = curcop->cop_line;
3356 yylval.ival = curcop->cop_line;
3360 LOP(OP_UNLINK,XTERM);
3366 LOP(OP_UNPACK,XTERM);
3369 LOP(OP_UTIME,XTERM);
3373 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
3374 if (*d != '0' && isDIGIT(*d))
3375 yywarn("umask: argument is missing initial 0");
3380 LOP(OP_UNSHIFT,XTERM);
3383 if (expect != XSTATE)
3384 yyerror("\"use\" not allowed in expression");
3385 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3397 yylval.ival = curcop->cop_line;
3401 hints |= HINT_BLOCK_SCOPE;
3408 LOP(OP_WAITPID,XTERM);
3414 gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */
3418 if (expect == XOPERATOR)
3424 yylval.ival = OP_XOR;
3429 TERM(sublex_start());
3442 if (strEQ(d,"__LINE__")) return -KEY___LINE__;
3443 if (strEQ(d,"__FILE__")) return -KEY___FILE__;
3444 if (strEQ(d,"__DATA__")) return KEY___DATA__;
3445 if (strEQ(d,"__END__")) return KEY___END__;
3449 if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD;
3454 if (strEQ(d,"and")) return -KEY_and;
3455 if (strEQ(d,"abs")) return -KEY_abs;
3458 if (strEQ(d,"alarm")) return -KEY_alarm;
3459 if (strEQ(d,"atan2")) return -KEY_atan2;
3462 if (strEQ(d,"accept")) return -KEY_accept;
3467 if (strEQ(d,"BEGIN")) return KEY_BEGIN;
3470 if (strEQ(d,"bless")) return -KEY_bless;
3471 if (strEQ(d,"bind")) return -KEY_bind;
3472 if (strEQ(d,"binmode")) return -KEY_binmode;
3475 if (strEQ(d,"CORE")) return -KEY_CORE;
3480 if (strEQ(d,"cmp")) return -KEY_cmp;
3481 if (strEQ(d,"chr")) return -KEY_chr;
3482 if (strEQ(d,"cos")) return -KEY_cos;
3485 if (strEQ(d,"chop")) return KEY_chop;
3488 if (strEQ(d,"close")) return -KEY_close;
3489 if (strEQ(d,"chdir")) return -KEY_chdir;
3490 if (strEQ(d,"chomp")) return KEY_chomp;
3491 if (strEQ(d,"chmod")) return -KEY_chmod;
3492 if (strEQ(d,"chown")) return -KEY_chown;
3493 if (strEQ(d,"crypt")) return -KEY_crypt;
3496 if (strEQ(d,"chroot")) return -KEY_chroot;
3497 if (strEQ(d,"caller")) return -KEY_caller;
3500 if (strEQ(d,"connect")) return -KEY_connect;
3503 if (strEQ(d,"closedir")) return -KEY_closedir;
3504 if (strEQ(d,"continue")) return -KEY_continue;
3509 if (strEQ(d,"DESTROY")) return KEY_DESTROY;
3514 if (strEQ(d,"do")) return KEY_do;
3517 if (strEQ(d,"die")) return -KEY_die;
3520 if (strEQ(d,"dump")) return -KEY_dump;
3523 if (strEQ(d,"delete")) return KEY_delete;
3526 if (strEQ(d,"defined")) return KEY_defined;
3527 if (strEQ(d,"dbmopen")) return -KEY_dbmopen;
3530 if (strEQ(d,"dbmclose")) return -KEY_dbmclose;
3535 if (strEQ(d,"EQ")) { deprecate(d); return -KEY_eq;}
3536 if (strEQ(d,"END")) return KEY_END;
3541 if (strEQ(d,"eq")) return -KEY_eq;
3544 if (strEQ(d,"eof")) return -KEY_eof;
3545 if (strEQ(d,"exp")) return -KEY_exp;
3548 if (strEQ(d,"else")) return KEY_else;
3549 if (strEQ(d,"exit")) return -KEY_exit;
3550 if (strEQ(d,"eval")) return KEY_eval;
3551 if (strEQ(d,"exec")) return -KEY_exec;
3552 if (strEQ(d,"each")) return KEY_each;
3555 if (strEQ(d,"elsif")) return KEY_elsif;
3558 if (strEQ(d,"exists")) return KEY_exists;
3559 if (strEQ(d,"elseif")) warn("elseif should be elsif");
3562 if (strEQ(d,"endgrent")) return -KEY_endgrent;
3563 if (strEQ(d,"endpwent")) return -KEY_endpwent;
3566 if (strEQ(d,"endnetent")) return -KEY_endnetent;
3569 if (strEQ(d,"endhostent")) return -KEY_endhostent;
3570 if (strEQ(d,"endservent")) return -KEY_endservent;
3573 if (strEQ(d,"endprotoent")) return -KEY_endprotoent;
3580 if (strEQ(d,"for")) return KEY_for;
3583 if (strEQ(d,"fork")) return -KEY_fork;
3586 if (strEQ(d,"fcntl")) return -KEY_fcntl;
3587 if (strEQ(d,"flock")) return -KEY_flock;
3590 if (strEQ(d,"format")) return KEY_format;
3591 if (strEQ(d,"fileno")) return -KEY_fileno;
3594 if (strEQ(d,"foreach")) return KEY_foreach;
3597 if (strEQ(d,"formline")) return -KEY_formline;
3603 if (strEQ(d,"GT")) { deprecate(d); return -KEY_gt;}
3604 if (strEQ(d,"GE")) { deprecate(d); return -KEY_ge;}
3608 if (strnEQ(d,"get",3)) {
3613 if (strEQ(d,"ppid")) return -KEY_getppid;
3614 if (strEQ(d,"pgrp")) return -KEY_getpgrp;
3617 if (strEQ(d,"pwent")) return -KEY_getpwent;
3618 if (strEQ(d,"pwnam")) return -KEY_getpwnam;
3619 if (strEQ(d,"pwuid")) return -KEY_getpwuid;
3622 if (strEQ(d,"peername")) return -KEY_getpeername;
3623 if (strEQ(d,"protoent")) return -KEY_getprotoent;
3624 if (strEQ(d,"priority")) return -KEY_getpriority;
3627 if (strEQ(d,"protobyname")) return -KEY_getprotobyname;
3630 if (strEQ(d,"protobynumber"))return -KEY_getprotobynumber;
3634 else if (*d == 'h') {
3635 if (strEQ(d,"hostbyname")) return -KEY_gethostbyname;
3636 if (strEQ(d,"hostbyaddr")) return -KEY_gethostbyaddr;
3637 if (strEQ(d,"hostent")) return -KEY_gethostent;
3639 else if (*d == 'n') {
3640 if (strEQ(d,"netbyname")) return -KEY_getnetbyname;
3641 if (strEQ(d,"netbyaddr")) return -KEY_getnetbyaddr;
3642 if (strEQ(d,"netent")) return -KEY_getnetent;
3644 else if (*d == 's') {
3645 if (strEQ(d,"servbyname")) return -KEY_getservbyname;
3646 if (strEQ(d,"servbyport")) return -KEY_getservbyport;
3647 if (strEQ(d,"servent")) return -KEY_getservent;
3648 if (strEQ(d,"sockname")) return -KEY_getsockname;
3649 if (strEQ(d,"sockopt")) return -KEY_getsockopt;
3651 else if (*d == 'g') {
3652 if (strEQ(d,"grent")) return -KEY_getgrent;
3653 if (strEQ(d,"grnam")) return -KEY_getgrnam;
3654 if (strEQ(d,"grgid")) return -KEY_getgrgid;
3656 else if (*d == 'l') {
3657 if (strEQ(d,"login")) return -KEY_getlogin;
3659 else if (strEQ(d,"c")) return -KEY_getc;
3664 if (strEQ(d,"gt")) return -KEY_gt;
3665 if (strEQ(d,"ge")) return -KEY_ge;
3668 if (strEQ(d,"grep")) return KEY_grep;
3669 if (strEQ(d,"goto")) return KEY_goto;
3670 if (strEQ(d,"glob")) return -KEY_glob;
3673 if (strEQ(d,"gmtime")) return -KEY_gmtime;
3678 if (strEQ(d,"hex")) return -KEY_hex;
3683 if (strEQ(d,"if")) return KEY_if;
3686 if (strEQ(d,"int")) return -KEY_int;
3689 if (strEQ(d,"index")) return -KEY_index;
3690 if (strEQ(d,"ioctl")) return -KEY_ioctl;
3695 if (strEQ(d,"join")) return -KEY_join;
3699 if (strEQ(d,"keys")) return KEY_keys;
3700 if (strEQ(d,"kill")) return -KEY_kill;
3705 if (strEQ(d,"LT")) { deprecate(d); return -KEY_lt;}
3706 if (strEQ(d,"LE")) { deprecate(d); return -KEY_le;}
3712 if (strEQ(d,"lt")) return -KEY_lt;
3713 if (strEQ(d,"le")) return -KEY_le;
3714 if (strEQ(d,"lc")) return -KEY_lc;
3717 if (strEQ(d,"log")) return -KEY_log;
3720 if (strEQ(d,"last")) return KEY_last;
3721 if (strEQ(d,"link")) return -KEY_link;
3724 if (strEQ(d,"local")) return KEY_local;
3725 if (strEQ(d,"lstat")) return -KEY_lstat;
3728 if (strEQ(d,"length")) return -KEY_length;
3729 if (strEQ(d,"listen")) return -KEY_listen;
3732 if (strEQ(d,"lcfirst")) return -KEY_lcfirst;
3735 if (strEQ(d,"localtime")) return -KEY_localtime;
3741 case 1: return KEY_m;
3743 if (strEQ(d,"my")) return KEY_my;
3746 if (strEQ(d,"map")) return KEY_map;
3749 if (strEQ(d,"mkdir")) return -KEY_mkdir;
3752 if (strEQ(d,"msgctl")) return -KEY_msgctl;
3753 if (strEQ(d,"msgget")) return -KEY_msgget;
3754 if (strEQ(d,"msgrcv")) return -KEY_msgrcv;
3755 if (strEQ(d,"msgsnd")) return -KEY_msgsnd;
3760 if (strEQ(d,"NE")) { deprecate(d); return -KEY_ne;}
3763 if (strEQ(d,"next")) return KEY_next;
3764 if (strEQ(d,"ne")) return -KEY_ne;
3765 if (strEQ(d,"not")) return -KEY_not;
3766 if (strEQ(d,"no")) return KEY_no;
3771 if (strEQ(d,"or")) return -KEY_or;
3774 if (strEQ(d,"ord")) return -KEY_ord;
3775 if (strEQ(d,"oct")) return -KEY_oct;
3778 if (strEQ(d,"open")) return -KEY_open;
3781 if (strEQ(d,"opendir")) return -KEY_opendir;
3788 if (strEQ(d,"pop")) return KEY_pop;
3789 if (strEQ(d,"pos")) return KEY_pos;
3792 if (strEQ(d,"push")) return KEY_push;
3793 if (strEQ(d,"pack")) return -KEY_pack;
3794 if (strEQ(d,"pipe")) return -KEY_pipe;
3797 if (strEQ(d,"print")) return KEY_print;
3800 if (strEQ(d,"printf")) return KEY_printf;
3803 if (strEQ(d,"package")) return KEY_package;
3806 if (strEQ(d,"prototype")) return KEY_prototype;
3811 if (strEQ(d,"q")) return KEY_q;
3812 if (strEQ(d,"qq")) return KEY_qq;
3813 if (strEQ(d,"qw")) return KEY_qw;
3814 if (strEQ(d,"qx")) return KEY_qx;
3816 else if (strEQ(d,"quotemeta")) return -KEY_quotemeta;
3821 if (strEQ(d,"ref")) return -KEY_ref;
3824 if (strEQ(d,"read")) return -KEY_read;
3825 if (strEQ(d,"rand")) return -KEY_rand;
3826 if (strEQ(d,"recv")) return -KEY_recv;
3827 if (strEQ(d,"redo")) return KEY_redo;
3830 if (strEQ(d,"rmdir")) return -KEY_rmdir;
3831 if (strEQ(d,"reset")) return -KEY_reset;
3834 if (strEQ(d,"return")) return KEY_return;
3835 if (strEQ(d,"rename")) return -KEY_rename;
3836 if (strEQ(d,"rindex")) return -KEY_rindex;
3839 if (strEQ(d,"require")) return -KEY_require;
3840 if (strEQ(d,"reverse")) return -KEY_reverse;
3841 if (strEQ(d,"readdir")) return -KEY_readdir;
3844 if (strEQ(d,"readlink")) return -KEY_readlink;
3845 if (strEQ(d,"readline")) return -KEY_readline;
3846 if (strEQ(d,"readpipe")) return -KEY_readpipe;
3849 if (strEQ(d,"rewinddir")) return -KEY_rewinddir;
3855 case 0: return KEY_s;
3857 if (strEQ(d,"scalar")) return KEY_scalar;
3862 if (strEQ(d,"seek")) return -KEY_seek;
3863 if (strEQ(d,"send")) return -KEY_send;
3866 if (strEQ(d,"semop")) return -KEY_semop;
3869 if (strEQ(d,"select")) return -KEY_select;
3870 if (strEQ(d,"semctl")) return -KEY_semctl;
3871 if (strEQ(d,"semget")) return -KEY_semget;
3874 if (strEQ(d,"setpgrp")) return -KEY_setpgrp;
3875 if (strEQ(d,"seekdir")) return -KEY_seekdir;
3878 if (strEQ(d,"setpwent")) return -KEY_setpwent;
3879 if (strEQ(d,"setgrent")) return -KEY_setgrent;
3882 if (strEQ(d,"setnetent")) return -KEY_setnetent;
3885 if (strEQ(d,"setsockopt")) return -KEY_setsockopt;
3886 if (strEQ(d,"sethostent")) return -KEY_sethostent;
3887 if (strEQ(d,"setservent")) return -KEY_setservent;
3890 if (strEQ(d,"setpriority")) return -KEY_setpriority;
3891 if (strEQ(d,"setprotoent")) return -KEY_setprotoent;
3898 if (strEQ(d,"shift")) return KEY_shift;
3901 if (strEQ(d,"shmctl")) return -KEY_shmctl;
3902 if (strEQ(d,"shmget")) return -KEY_shmget;
3905 if (strEQ(d,"shmread")) return -KEY_shmread;
3908 if (strEQ(d,"shmwrite")) return -KEY_shmwrite;
3909 if (strEQ(d,"shutdown")) return -KEY_shutdown;
3914 if (strEQ(d,"sin")) return -KEY_sin;
3917 if (strEQ(d,"sleep")) return -KEY_sleep;
3920 if (strEQ(d,"sort")) return KEY_sort;
3921 if (strEQ(d,"socket")) return -KEY_socket;
3922 if (strEQ(d,"socketpair")) return -KEY_socketpair;
3925 if (strEQ(d,"split")) return KEY_split;
3926 if (strEQ(d,"sprintf")) return -KEY_sprintf;
3927 if (strEQ(d,"splice")) return KEY_splice;
3930 if (strEQ(d,"sqrt")) return -KEY_sqrt;
3933 if (strEQ(d,"srand")) return -KEY_srand;
3936 if (strEQ(d,"stat")) return -KEY_stat;
3937 if (strEQ(d,"study")) return KEY_study;
3940 if (strEQ(d,"substr")) return -KEY_substr;
3941 if (strEQ(d,"sub")) return KEY_sub;
3946 if (strEQ(d,"system")) return -KEY_system;
3949 if (strEQ(d,"sysopen")) return -KEY_sysopen;
3950 if (strEQ(d,"sysread")) return -KEY_sysread;
3951 if (strEQ(d,"symlink")) return -KEY_symlink;
3952 if (strEQ(d,"syscall")) return -KEY_syscall;
3955 if (strEQ(d,"syswrite")) return -KEY_syswrite;
3964 if (strEQ(d,"tr")) return KEY_tr;
3967 if (strEQ(d,"tie")) return KEY_tie;
3970 if (strEQ(d,"tell")) return -KEY_tell;
3971 if (strEQ(d,"tied")) return KEY_tied;
3972 if (strEQ(d,"time")) return -KEY_time;
3975 if (strEQ(d,"times")) return -KEY_times;
3978 if (strEQ(d,"telldir")) return -KEY_telldir;
3981 if (strEQ(d,"truncate")) return -KEY_truncate;
3988 if (strEQ(d,"uc")) return -KEY_uc;
3991 if (strEQ(d,"use")) return KEY_use;
3994 if (strEQ(d,"undef")) return KEY_undef;
3995 if (strEQ(d,"until")) return KEY_until;
3996 if (strEQ(d,"untie")) return KEY_untie;
3997 if (strEQ(d,"utime")) return -KEY_utime;
3998 if (strEQ(d,"umask")) return -KEY_umask;
4001 if (strEQ(d,"unless")) return KEY_unless;
4002 if (strEQ(d,"unpack")) return -KEY_unpack;
4003 if (strEQ(d,"unlink")) return -KEY_unlink;
4006 if (strEQ(d,"unshift")) return KEY_unshift;
4007 if (strEQ(d,"ucfirst")) return -KEY_ucfirst;
4012 if (strEQ(d,"values")) return -KEY_values;
4013 if (strEQ(d,"vec")) return -KEY_vec;
4018 if (strEQ(d,"warn")) return -KEY_warn;
4019 if (strEQ(d,"wait")) return -KEY_wait;
4022 if (strEQ(d,"while")) return KEY_while;
4023 if (strEQ(d,"write")) return -KEY_write;
4026 if (strEQ(d,"waitpid")) return -KEY_waitpid;
4029 if (strEQ(d,"wantarray")) return -KEY_wantarray;
4034 if (len == 1) return -KEY_x;
4035 if (strEQ(d,"xor")) return -KEY_xor;
4038 if (len == 1) return KEY_y;
4047 checkcomma(s,name,what)
4054 if (dowarn && *s == ' ' && s[1] == '(') { /* XXX gotta be a better way */
4056 for (w = s+2; *w && level; w++) {
4063 for (; *w && isSPACE(*w); w++) ;
4064 if (!*w || !strchr(";|})]oa!=", *w)) /* an advisory hack only... */
4065 warn("%s (...) interpreted as function",name);
4067 while (s < bufend && isSPACE(*s))
4071 while (s < bufend && isSPACE(*s))
4073 if (isIDFIRST(*s)) {
4077 while (s < bufend && isSPACE(*s))
4082 kw = keyword(w, s - w) || perl_get_cv(w, FALSE) != 0;
4086 croak("No comma allowed after %s", what);
4092 scan_word(s, dest, allow_package, slp)
4098 register char *d = dest;
4102 else if (*s == '\'' && allow_package && isIDFIRST(s[1])) {
4107 else if (*s == ':' && s[1] == ':' && allow_package && isIDFIRST(s[2])) {
4120 scan_ident(s,send,dest,ck_uni)
4122 register char *send;
4130 if (lex_brackets == 0)
4143 else if (*s == '\'' && isIDFIRST(s[1])) {
4148 else if (*s == ':' && s[1] == ':') {
4159 if (lex_state != LEX_NORMAL)
4160 lex_state = LEX_INTERPENDMAYBE;
4163 if (*s == '$' && s[1] &&
4164 (isALPHA(s[1]) || strchr("$_{", s[1]) || strnEQ(s+1,"::",2)) )
4175 if (*d == '^' && *s && (isUPPER(*s) || strchr("[\\]^_?", *s))) {
4179 if (isSPACE(s[-1])) {
4180 while (s < send && (*s == ' ' || *s == '\t')) s++;
4183 if (isALPHA(*d) || *d == '_') {
4185 while (isALNUM(*s) || *s == ':')
4188 while (s < send && (*s == ' ' || *s == '\t')) s++;
4189 if ((*s == '[' || *s == '{')) {
4190 if (dowarn && keyword(dest, d - dest)) {
4191 char *brack = *s == '[' ? "[...]" : "{...}";
4192 warn("Ambiguous use of %c{%s%s} resolved to %c%s%s",
4193 funny, dest, brack, funny, dest, brack);
4195 lex_fakebrack = lex_brackets+1;
4197 lex_brackstack[lex_brackets++] = XOPERATOR;
4203 if (lex_state == LEX_INTERPNORMAL && !lex_brackets)
4204 lex_state = LEX_INTERPEND;
4208 (keyword(dest, d - dest) || perl_get_cv(dest, FALSE)))
4209 warn("Ambiguous use of %c{%s} resolved to %c%s",
4210 funny, dest, funny, dest);
4213 s = bracket; /* let the parser handle it */
4217 else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s))
4218 lex_state = LEX_INTERPEND;
4222 void pmflag(pmfl,ch)
4231 *pmfl |= PMf_GLOBAL;
4235 *pmfl |= PMf_MULTILINE;
4237 *pmfl |= PMf_SINGLELINE;
4239 *pmfl |= PMf_EXTENDED;
4249 s = scan_str(start);
4252 SvREFCNT_dec(lex_stuff);
4254 croak("Search pattern not terminated");
4256 pm = (PMOP*)newPMOP(OP_MATCH, 0);
4257 if (multi_open == '?')
4258 pm->op_pmflags |= PMf_ONCE;
4260 while (*s && strchr("iogmsx", *s))
4261 pmflag(&pm->op_pmflags,*s++);
4263 pm->op_pmpermflags = pm->op_pmflags;
4265 yylval.ival = OP_MATCH;
4277 yylval.ival = OP_NULL;
4279 s = scan_str(start);
4283 SvREFCNT_dec(lex_stuff);
4285 croak("Substitution pattern not terminated");
4288 if (s[-1] == multi_open)
4294 SvREFCNT_dec(lex_stuff);
4297 SvREFCNT_dec(lex_repl);
4299 croak("Substitution replacement not terminated");
4302 pm = (PMOP*)newPMOP(OP_SUBST, 0);
4303 while (*s && strchr("iogmsex", *s)) {
4309 pmflag(&pm->op_pmflags,*s++);
4314 pm->op_pmflags |= PMf_EVAL;
4315 repl = newSVpv("",0);
4317 sv_catpv(repl, es ? "eval " : "do ");
4318 sv_catpvn(repl, "{ ", 2);
4319 sv_catsv(repl, lex_repl);
4320 sv_catpvn(repl, " };", 2);
4321 SvCOMPILED_on(repl);
4322 SvREFCNT_dec(lex_repl);
4326 pm->op_pmpermflags = pm->op_pmflags;
4328 yylval.ival = OP_SUBST;
4336 if (!pm->op_pmshort && pm->op_pmregexp->regstart &&
4337 (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH)
4339 if (!(pm->op_pmregexp->reganch & ROPT_ANCH))
4340 pm->op_pmflags |= PMf_SCANFIRST;
4341 else if (pm->op_pmflags & PMf_FOLD)
4343 pm->op_pmshort = SvREFCNT_inc(pm->op_pmregexp->regstart);
4344 pm->op_pmslen = SvCUR(pm->op_pmshort);
4346 else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */
4347 if (pm->op_pmshort &&
4348 sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust))
4350 if (pm->op_pmflags & PMf_SCANFIRST) {
4351 SvREFCNT_dec(pm->op_pmshort);
4352 pm->op_pmshort = Nullsv;
4355 SvREFCNT_dec(pm->op_pmregexp->regmust);
4356 pm->op_pmregexp->regmust = Nullsv;
4360 if (!pm->op_pmshort || /* promote the better string */
4361 ((pm->op_pmflags & PMf_SCANFIRST) &&
4362 (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)) )){
4363 SvREFCNT_dec(pm->op_pmshort); /* ok if null */
4364 pm->op_pmshort = pm->op_pmregexp->regmust;
4365 pm->op_pmslen = SvCUR(pm->op_pmshort);
4366 pm->op_pmregexp->regmust = Nullsv;
4367 pm->op_pmflags |= PMf_SCANFIRST;
4383 yylval.ival = OP_NULL;
4385 s = scan_str(start);
4388 SvREFCNT_dec(lex_stuff);
4390 croak("Translation pattern not terminated");
4392 if (s[-1] == multi_open)
4398 SvREFCNT_dec(lex_stuff);
4401 SvREFCNT_dec(lex_repl);
4403 croak("Translation replacement not terminated");
4406 New(803,tbl,256,short);
4407 op = newPVOP(OP_TRANS, 0, (char*)tbl);
4409 complement = delete = squash = 0;
4410 while (*s == 'c' || *s == 'd' || *s == 's') {
4412 complement = OPpTRANS_COMPLEMENT;
4414 delete = OPpTRANS_DELETE;
4416 squash = OPpTRANS_SQUASH;
4419 op->op_private = delete|squash|complement;
4422 yylval.ival = OP_TRANS;
4431 I32 op_type = OP_SCALAR;
4442 for (peek = s; *peek == ' ' || *peek == '\t'; peek++) ;
4443 if (*peek && strchr("`'\"",*peek)) {
4446 s = cpytill(d,s,bufend,term,&len);
4457 deprecate("bare << to mean <<\"\"");
4460 } /* assuming tokenbuf won't clobber */
4465 if (rsfp || !(d=ninstr(s,bufend,d,d+1)))
4466 herewas = newSVpv(s,bufend-s);
4468 s--, herewas = newSVpv(s,d-s);
4469 s += SvCUR(herewas);
4471 tmpstr = NEWSV(87,80);
4472 sv_upgrade(tmpstr, SVt_PVIV);
4477 else if (term == '`') {
4478 op_type = OP_BACKTICK;
4479 SvIVX(tmpstr) = '\\';
4483 multi_start = curcop->cop_line;
4484 multi_open = multi_close = '<';
4488 while (s < bufend &&
4489 (*s != term || bcmp(s,tokenbuf,len) != 0) ) {
4494 curcop->cop_line = multi_start;
4495 missingterm(tokenbuf);
4497 sv_setpvn(tmpstr,d+1,s-d);
4499 sv_catpvn(herewas,s,bufend-s);
4500 sv_setsv(linestr,herewas);
4501 oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr);
4502 bufend = SvPVX(linestr) + SvCUR(linestr);
4505 sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */
4506 while (s >= bufend) { /* multiple line string? */
4508 !(oldoldbufptr = oldbufptr = s = filter_gets(linestr, rsfp))) {
4509 curcop->cop_line = multi_start;
4510 missingterm(tokenbuf);
4513 if (perldb && curstash != debstash) {
4514 SV *sv = NEWSV(88,0);
4516 sv_upgrade(sv, SVt_PVMG);
4517 sv_setsv(sv,linestr);
4518 av_store(GvAV(curcop->cop_filegv),
4519 (I32)curcop->cop_line,sv);
4521 bufend = SvPVX(linestr) + SvCUR(linestr);
4522 if (*s == term && bcmp(s,tokenbuf,len) == 0) {
4525 sv_catsv(linestr,herewas);
4526 bufend = SvPVX(linestr) + SvCUR(linestr);
4530 sv_catsv(tmpstr,linestr);
4533 multi_end = curcop->cop_line;
4535 if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) {
4536 SvLEN_set(tmpstr, SvCUR(tmpstr) + 1);
4537 Renew(SvPVX(tmpstr), SvLEN(tmpstr), char);
4539 SvREFCNT_dec(herewas);
4541 yylval.ival = op_type;
4546 scan_inputsymbol(start)
4549 register char *s = start;
4554 s = cpytill(d, s+1, bufend, '>', &len);
4558 croak("Unterminated <> operator");
4560 if (*d == '$' && d[1]) d++;
4561 while (*d && (isALNUM(*d) || *d == '\'' || *d == ':'))
4563 if (d - tokenbuf != len) {
4564 yylval.ival = OP_GLOB;
4566 s = scan_str(start);
4568 croak("Glob not terminated");
4574 (void)strcpy(d,"ARGV");
4577 if (tmp = pad_findmy(d)) {
4578 OP *op = newOP(OP_PADSV, 0);
4580 lex_op = (OP*)newUNOP(OP_READLINE, 0, newUNOP(OP_RV2GV, 0, op));
4583 GV *gv = gv_fetchpv(d+1,TRUE, SVt_PV);
4584 lex_op = (OP*)newUNOP(OP_READLINE, 0,
4585 newUNOP(OP_RV2GV, 0,
4586 newUNOP(OP_RV2SV, 0,
4587 newGVOP(OP_GV, 0, gv))));
4589 yylval.ival = OP_NULL;
4592 GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO);
4593 lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv));
4594 yylval.ival = OP_NULL;
4606 register char *s = start;
4615 multi_start = curcop->cop_line;
4617 if (term && (tmps = strchr("([{< )]}> )]}>",term)))
4622 sv_upgrade(sv, SVt_PVIV);
4624 (void)SvPOK_only(sv); /* validate pointer */
4627 SvGROW(sv, SvCUR(sv) + (bufend - s) + 1);
4628 to = SvPVX(sv)+SvCUR(sv);
4629 if (multi_open == multi_close) {
4630 for (; s < bufend; s++,to++) {
4631 if (*s == '\n' && !rsfp)
4633 if (*s == '\\' && s+1 < bufend && term != '\\') {
4639 else if (*s == term)
4645 for (; s < bufend; s++,to++) {
4646 if (*s == '\n' && !rsfp)
4648 if (*s == '\\' && s+1 < bufend && term != '\\') {
4654 else if (*s == term && --brackets <= 0)
4656 else if (*s == multi_open)
4662 SvCUR_set(sv, to - SvPVX(sv));
4664 if (s < bufend) break; /* string ends on this line? */
4667 !(oldoldbufptr = oldbufptr = s = filter_gets(linestr, rsfp))) {
4669 curcop->cop_line = multi_start;
4673 if (perldb && curstash != debstash) {
4674 SV *sv = NEWSV(88,0);
4676 sv_upgrade(sv, SVt_PVMG);
4677 sv_setsv(sv,linestr);
4678 av_store(GvAV(curcop->cop_filegv),
4679 (I32)curcop->cop_line, sv);
4681 bufend = SvPVX(linestr) + SvCUR(linestr);
4683 multi_end = curcop->cop_line;
4685 if (SvCUR(sv) + 5 < SvLEN(sv)) {
4686 SvLEN_set(sv, SvCUR(sv) + 1);
4687 Renew(SvPVX(sv), SvLEN(sv), char);
4700 register char *s = start;
4710 croak("panic: scan_num");
4720 else if (s[1] == '.')
4734 yyerror("Illegal octal digit");
4736 case '0': case '1': case '2': case '3': case '4':
4737 case '5': case '6': case '7':
4741 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
4742 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
4746 i += (*s++ & 7) + 9;
4753 if (tryi32 == i && tryi32 >= 0)
4754 sv_setiv(sv,tryi32);
4756 sv_setnv(sv,(double)i);
4759 case '1': case '2': case '3': case '4': case '5':
4760 case '6': case '7': case '8': case '9': case '.':
4764 while (isDIGIT(*s) || *s == '_') {
4766 if (dowarn && lastub && s - lastub != 3)
4767 warn("Misplaced _ in number");
4773 if (dowarn && lastub && s - lastub != 3)
4774 warn("Misplaced _ in number");
4775 if (*s == '.' && s[1] != '.') {
4778 while (isDIGIT(*s) || *s == '_') {
4785 if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) {
4788 *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */
4789 if (*s == '+' || *s == '-')
4796 value = atof(tokenbuf);
4797 tryi32 = I_32(value);
4798 if (!floatit && (double)tryi32 == value)
4799 sv_setiv(sv,tryi32);
4805 yylval.opval = newSVOP(OP_CONST, 0, sv);
4816 SV *stuff = newSVpv("",0);
4817 bool needargs = FALSE;
4820 if (*s == '.' || *s == '}') {
4822 for (t = s+1; *t == ' ' || *t == '\t'; t++) ;
4826 if (in_eval && !rsfp) {
4827 eol = strchr(s,'\n');
4832 eol = bufend = SvPVX(linestr) + SvCUR(linestr);
4834 for (t = s; t < eol; t++) {
4835 if (*t == '~' && t[1] == '~' && SvCUR(stuff)) {
4837 goto enough; /* ~~ must be first line in formline */
4839 if (*t == '@' || *t == '^')
4842 sv_catpvn(stuff, s, eol-s);
4846 s = filter_gets(linestr, rsfp);
4847 oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr);
4848 bufend = bufptr + SvCUR(linestr);
4851 yyerror("Format not terminated");
4861 lex_state = LEX_NORMAL;
4862 nextval[nexttoke].ival = 0;
4866 lex_state = LEX_FORMLINE;
4867 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff);
4869 nextval[nexttoke].ival = OP_FORMLINE;
4873 SvREFCNT_dec(stuff);
4885 cshlen = strlen(cshname);
4892 int oldsavestack_ix = savestack_ix;
4893 CV* outsidecv = compcv;
4897 assert(SvTYPE(compcv) == SVt_PVCV);
4904 SAVESPTR(comppad_name);
4906 SAVEINT(comppad_name_fill);
4907 SAVEINT(min_intro_pending);
4908 SAVEINT(max_intro_pending);
4909 SAVEINT(pad_reset_pending);
4911 compcv = (CV*)NEWSV(1104,0);
4912 sv_upgrade((SV *)compcv, SVt_PVCV);
4915 comppad_name = newAV();
4916 comppad_name_fill = 0;
4917 min_intro_pending = 0;
4918 av_push(comppad, Nullsv);
4919 curpad = AvARRAY(comppad);
4921 subline = curcop->cop_line;
4923 comppadlist = newAV();
4924 AvREAL_off(comppadlist);
4925 av_store(comppadlist, 0, (SV*)comppad_name);
4926 av_store(comppadlist, 1, (SV*)comppad);
4928 CvPADLIST(compcv) = comppadlist;
4929 CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc((SV*)outsidecv);
4931 return oldsavestack_ix;
4950 char *tname = tmpbuf;
4952 if (bufptr > oldoldbufptr && bufptr - oldoldbufptr < 200 &&
4953 oldoldbufptr != oldbufptr && oldbufptr != bufptr) {
4954 while (isSPACE(*oldoldbufptr))
4956 sprintf(tname,"near \"%.*s\"",bufptr - oldoldbufptr, oldoldbufptr);
4958 else if (bufptr > oldbufptr && bufptr - oldbufptr < 200 &&
4959 oldbufptr != bufptr) {
4960 while (isSPACE(*oldbufptr))
4962 sprintf(tname,"near \"%.*s\"",bufptr - oldbufptr, oldbufptr);
4964 else if (yychar > 255)
4965 tname = "next token ???";
4966 else if (!yychar || (yychar == ';' && !rsfp))
4967 (void)strcpy(tname,"at EOF");
4968 else if ((yychar & 127) == 127) {
4969 if (lex_state == LEX_NORMAL ||
4970 (lex_state == LEX_KNOWNEXT && lex_defer == LEX_NORMAL))
4971 (void)strcpy(tname,"at end of line");
4973 (void)strcpy(tname,"within pattern");
4975 (void)strcpy(tname,"within string");
4977 else if (yychar < 32)
4978 (void)sprintf(tname,"next char ^%c",yychar+64);
4980 (void)sprintf(tname,"next char %c",yychar);
4981 (void)sprintf(buf, "%s at %s line %d, %s\n",
4982 s,SvPVX(GvSV(curcop->cop_filegv)),curcop->cop_line,tname);
4983 if (curcop->cop_line == multi_end && multi_start < multi_end) {
4984 sprintf(buf+strlen(buf),
4985 " (Might be a runaway multi-line %c%c string starting on line %ld)\n",
4986 multi_open,multi_close,(long)multi_start);
4992 sv_catpv(GvSV(errgv),buf);
4995 if (++error_count >= 10)
4996 croak("%s has too many errors.\n",
4997 SvPVX(GvSV(curcop->cop_filegv)));