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;
330 if (lex_formbrack && lex_brackets <= lex_formbrack) {
331 while (s < bufend && (*s == ' ' || *s == '\t'))
336 while (s < bufend && isSPACE(*s))
338 if (s < bufend && *s == '#') {
339 while (s < bufend && *s != '\n')
344 if (s < bufend || !rsfp || lex_state != LEX_NORMAL)
346 if ((s = filter_gets(linestr, rsfp)) == Nullch) {
347 if (minus_n || minus_p) {
348 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
349 sv_catpv(linestr,";}");
350 minus_n = minus_p = 0;
353 sv_setpv(linestr,";");
354 oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr);
355 bufend = SvPVX(linestr) + SvCUR(linestr);
356 if (preprocess && !in_eval)
357 (void)my_pclose(rsfp);
358 else if ((FILE*)rsfp == stdin)
365 oldoldbufptr = oldbufptr = bufptr = s;
366 bufend = bufptr + SvCUR(linestr);
368 if (perldb && curstash != debstash) {
369 SV *sv = NEWSV(85,0);
371 sv_upgrade(sv, SVt_PVMG);
372 sv_setsv(sv,linestr);
373 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
384 if (oldoldbufptr != last_uni)
386 while (isSPACE(*last_uni))
388 for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ;
389 if ((t = strchr(s, '(')) && t < bufptr)
393 warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni);
400 #define UNI(f) return uni(f,s)
410 last_uni = oldbufptr;
421 #endif /* CRIPPLED_CC */
423 #define LOP(f,x) return lop(f,x,s)
435 last_lop = oldbufptr;
452 nexttype[nexttoke] = type;
454 if (lex_state != LEX_KNOWNEXT) {
455 lex_defer = lex_state;
457 lex_state = LEX_KNOWNEXT;
462 force_word(start,token,check_keyword,allow_pack,allow_tick)
463 register char *start;
472 start = skipspace(start);
475 (allow_pack && *s == ':') ||
476 (allow_tick && *s == '\'') )
478 s = scan_word(s, tokenbuf, allow_pack, &len);
479 if (check_keyword && keyword(tokenbuf, len))
481 if (token == METHOD) {
491 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(tokenbuf,0));
492 nextval[nexttoke].opval->op_private |= OPpCONST_BARE;
504 OP* o = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0));
505 nextval[nexttoke].opval = o;
508 o->op_private = OPpCONST_ENTERED;
510 kind == '$' ? SVt_PV :
511 kind == '@' ? SVt_PVAV :
512 kind == '%' ? SVt_PVHV :
531 s = SvPV_force(sv, len);
535 while (s < send && *s != '\\')
542 if (s + 1 < send && (s[1] == '\\'))
543 s++; /* all that, just for this */
548 SvCUR_set(sv, d - SvPVX(sv));
556 register I32 op_type = yylval.ival;
558 if (op_type == OP_NULL) {
559 yylval.opval = lex_op;
563 if (op_type == OP_CONST || op_type == OP_READLINE) {
564 yylval.opval = (OP*)newSVOP(op_type, 0, q(lex_stuff));
571 SAVEINT(lex_brackets);
572 SAVEINT(lex_fakebrack);
573 SAVEINT(lex_casemods);
578 SAVEINT(curcop->cop_line);
581 SAVEPPTR(oldoldbufptr);
583 SAVEPPTR(lex_brackstack);
584 SAVEPPTR(lex_casestack);
589 bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
590 bufend += SvCUR(linestr);
596 New(899, lex_brackstack, 120, char);
597 New(899, lex_casestack, 12, char);
598 SAVEFREEPV(lex_brackstack);
599 SAVEFREEPV(lex_casestack);
601 *lex_casestack = '\0';
603 lex_state = LEX_INTERPCONCAT;
604 curcop->cop_line = multi_start;
606 lex_inwhat = op_type;
607 if (op_type == OP_MATCH || op_type == OP_SUBST)
615 yylval.opval = lex_op;
628 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0));
632 if (lex_casemods) { /* oops, we've got some unbalanced parens */
633 lex_state = LEX_INTERPCASEMOD;
637 /* Is there a right-hand side to take care of? */
638 if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) {
641 bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
642 bufend += SvCUR(linestr);
648 *lex_casestack = '\0';
650 if (SvCOMPILED(lex_repl)) {
651 lex_state = LEX_INTERPNORMAL;
655 lex_state = LEX_INTERPCONCAT;
661 bufend = SvPVX(linestr);
662 bufend += SvCUR(linestr);
672 register char *send = bufend;
673 SV *sv = NEWSV(93, send - start);
674 register char *s = start;
675 register char *d = SvPVX(sv);
676 bool dorange = FALSE;
680 ? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]} \t\n\r\f\v#"
681 : (lex_inwhat & OP_TRANS)
685 while (s < send || dorange) {
686 if (lex_inwhat == OP_TRANS) {
691 SvGROW(sv, SvLEN(sv) + 256);
695 for (i = (U8)*d; i <= max; i++)
700 else if (*s == '-' && s+1 < send && s != start) {
705 else if (*s == '(' && lex_inpat && s[1] == '?' && s[2] == '#') {
706 while (s < send && *s != ')')
709 else if (*s == '#' && lex_inpat &&
710 ((PMOP*)lex_inpat)->op_pmflags & PMf_EXTENDED) {
711 while (s+1 < send && *s != '\n')
714 else if (*s == '@' && s[1] && (isALNUM(s[1]) || strchr(":'{$", s[1])))
716 else if (*s == '$') {
717 if (!lex_inpat) /* not a regexp, so $ must be var */
719 if (s + 1 < send && !strchr(")| \n\t", s[1]))
720 break; /* in regexp, $ might be tail anchor */
722 if (*s == '\\' && s+1 < send) {
724 if (*s && strchr(leave, *s)) {
729 if (lex_inwhat == OP_SUBST && !lex_inpat &&
730 isDIGIT(*s) && *s != '0' && !isDIGIT(s[1]))
733 warn("\\%c better written as $%c", *s, *s);
737 if (lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) {
743 if (lex_inwhat == OP_TRANS) {
751 case '0': case '1': case '2': case '3':
752 case '4': case '5': case '6': case '7':
753 *d++ = scan_oct(s, 3, &len);
757 *d++ = scan_hex(++s, 2, &len);
795 SvCUR_set(sv, d - SvPVX(sv));
798 if (SvCUR(sv) + 5 < SvLEN(sv)) {
799 SvLEN_set(sv, SvCUR(sv) + 1);
800 Renew(SvPVX(sv), SvLEN(sv), char);
803 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
809 /* This is the one truly awful dwimmer necessary to conflate C and sed. */
816 if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{'))
818 if (*s != '{' && *s != '[')
823 /* In a pattern, so maybe we have {n,m}. */
840 /* On the other hand, maybe we have a character class */
843 if (*s == ']' || *s == '^')
846 int weight = 2; /* let's weigh the evidence */
848 unsigned char un_char = 0, last_un_char;
849 char *send = strchr(s,']');
852 if (!send) /* has to be an expression */
858 else if (isDIGIT(*s)) {
860 if (isDIGIT(s[1]) && s[2] == ']')
866 for (; s < send; s++) {
867 last_un_char = un_char;
868 un_char = (unsigned char)*s;
873 weight -= seen[un_char] * 10;
875 scan_ident(s,send,tmpbuf,FALSE);
876 if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV))
881 else if (*s == '$' && s[1] &&
882 strchr("[#!%*<>()-=",s[1])) {
883 if (/*{*/ strchr("])} =",s[2]))
892 if (strchr("wds]",s[1]))
894 else if (seen['\''] || seen['"'])
896 else if (strchr("rnftbxcav",s[1]))
898 else if (isDIGIT(s[1])) {
900 while (s[1] && isDIGIT(s[1]))
910 if (strchr("aA01! ",last_un_char))
912 if (strchr("zZ79~",s[1]))
916 if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) &&
917 isALPHA(*s) && s[1] && isALPHA(s[1])) {
922 if (keyword(tmpbuf, d - tmpbuf))
925 if (un_char == last_un_char + 1)
927 weight -= seen[un_char];
932 if (weight >= 0) /* probably a character class */
940 intuit_method(start,gv)
944 char *s = start + (*start == '$');
955 s = scan_word(s, tmpbuf, TRUE, &len);
957 if (gv || last_lop_op == OP_PRINT || isUPPER(*tokenbuf))
962 return *s == '(' ? FUNCMETH : METHOD;
964 if (!keyword(tmpbuf, len)) {
965 indirgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVCV);
966 if (indirgv && GvCV(indirgv))
968 /* filehandle or package name makes it a method */
969 if (!gv || GvIO(indirgv) || gv_stashpv(tmpbuf, FALSE)) {
971 nextval[nexttoke].opval =
972 (OP*)newSVOP(OP_CONST, 0,
974 nextval[nexttoke].opval->op_private =
979 return *s == '(' ? FUNCMETH : METHOD;
989 char *pdb = getenv("PERL5DB");
993 return "BEGIN { require 'perl5db.pl' }";
999 /* Encoded script support. filter_add() effectively inserts a
1000 * 'pre-processing' function into the current source input stream.
1001 * Note that the filter function only applies to the current source file
1002 * (e.g., it will not affect files 'require'd or 'use'd by this one).
1004 * The datasv parameter (which may be NULL) can be used to pass
1005 * private data to this instance of the filter. The filter function
1006 * can recover the SV using the FILTER_DATA macro and use it to
1007 * store private buffers and state information.
1009 * The supplied datasv parameter is upgraded to a PVIO type
1010 * and the IoDIRP field is used to store the function pointer.
1011 * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for
1012 * private use must be set using malloc'd pointers.
1014 static int filter_debug = 0;
1017 filter_add(funcp, datasv)
1021 if (!funcp){ /* temporary handy debugging hack to be deleted */
1022 filter_debug = atoi((char*)datasv);
1026 rsfp_filters = newAV();
1029 if (!SvUPGRADE(datasv, SVt_PVIO))
1030 die("Can't upgrade filter_add data to SVt_PVIO");
1031 IoDIRP(datasv) = (DIR*)funcp; /* stash funcp into spare field */
1033 warn("filter_add func %lx (%s)", funcp, SvPV(datasv,na));
1034 av_unshift(rsfp_filters, 1);
1035 av_store(rsfp_filters, 0, datasv) ;
1040 /* Delete most recently added instance of this filter function. */
1046 warn("filter_del func %lx", funcp);
1047 if (!rsfp_filters || AvFILL(rsfp_filters)<0)
1049 /* if filter is on top of stack (usual case) just pop it off */
1050 if (IoDIRP(FILTER_DATA(0)) == (void*)funcp){
1051 /* sv_free(av_pop(rsfp_filters)); */
1052 sv_free(av_shift(rsfp_filters));
1056 /* we need to search for the correct entry and clear it */
1057 die("filter_del can only delete in reverse order (currently)");
1061 /* Invoke the n'th filter function for the current rsfp. */
1063 filter_read(idx, buf_sv, maxlen)
1066 int maxlen; /* 0 = read one text line */
1073 if (idx > AvFILL(rsfp_filters)){ /* Any more filters? */
1074 /* Provide a default input filter to make life easy. */
1075 /* Note that we append to the line. This is handy. */
1077 warn("filter_read %d: from rsfp\n", idx);
1081 int old_len = SvCUR(buf_sv) ;
1083 /* ensure buf_sv is large enough */
1084 SvGROW(buf_sv, old_len + maxlen) ;
1085 if ((len = fread(SvPVX(buf_sv) + old_len, 1, maxlen, rsfp)) <= 0){
1087 return -1; /* error */
1089 return 0 ; /* end of file */
1091 SvCUR_set(buf_sv, old_len + len) ;
1094 if (sv_gets(buf_sv, rsfp, SvCUR(buf_sv)) == NULL) {
1096 return -1; /* error */
1098 return 0 ; /* end of file */
1101 return SvCUR(buf_sv);
1103 /* Skip this filter slot if filter has been deleted */
1104 if ( (datasv = FILTER_DATA(idx)) == &sv_undef){
1106 warn("filter_read %d: skipped (filter deleted)\n", idx);
1107 return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */
1109 /* Get function pointer hidden within datasv */
1110 funcp = (filter_t)IoDIRP(datasv);
1112 warn("filter_read %d: via function %lx (%s)\n",
1113 idx, funcp, SvPV(datasv,na));
1114 /* Call function. The function is expected to */
1115 /* call "FILTER_READ(idx+1, buf_sv)" first. */
1116 /* Return: <0:error, =0:eof, >0:not eof */
1117 return (*funcp)(idx, buf_sv, maxlen);
1127 SvCUR_set(sv, 0); /* start with empty line */
1128 if (FILTER_READ(0, sv, 0) > 0)
1129 return ( SvPVX(sv) ) ;
1134 return (sv_gets(sv, fp, 0)) ;
1140 static char* exp_name[] =
1141 { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "TERMBLOCK" };
1144 extern int yychar; /* last token */
1155 switch (lex_state) {
1157 case LEX_NORMAL: /* Some compilers will produce faster */
1158 case LEX_INTERPNORMAL: /* code if we comment these out. */
1164 yylval = nextval[nexttoke];
1166 lex_state = lex_defer;
1167 expect = lex_expect;
1168 lex_defer = LEX_NORMAL;
1170 return(nexttype[nexttoke]);
1172 case LEX_INTERPCASEMOD:
1174 if (bufptr != bufend && *bufptr != '\\')
1175 croak("panic: INTERPCASEMOD");
1177 if (bufptr == bufend || bufptr[1] == 'E') {
1180 oldmod = lex_casestack[--lex_casemods];
1181 lex_casestack[lex_casemods] = '\0';
1182 if (bufptr != bufend && strchr("LUQ", oldmod)) {
1184 lex_state = LEX_INTERPCONCAT;
1188 if (bufptr != bufend)
1190 lex_state = LEX_INTERPCONCAT;
1195 if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3))
1196 tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */
1197 if (strchr("LU", *s) &&
1198 (strchr(lex_casestack, 'L') || strchr(lex_casestack, 'U')))
1200 lex_casestack[--lex_casemods] = '\0';
1203 if (lex_casemods > 10) {
1204 char* newlb = (char*)realloc(lex_casestack, lex_casemods + 2);
1205 if (newlb != lex_casestack) {
1207 lex_casestack = newlb;
1210 lex_casestack[lex_casemods++] = *s;
1211 lex_casestack[lex_casemods] = '\0';
1212 lex_state = LEX_INTERPCONCAT;
1213 nextval[nexttoke].ival = 0;
1216 nextval[nexttoke].ival = OP_LCFIRST;
1218 nextval[nexttoke].ival = OP_UCFIRST;
1220 nextval[nexttoke].ival = OP_LC;
1222 nextval[nexttoke].ival = OP_UC;
1224 nextval[nexttoke].ival = OP_QUOTEMETA;
1226 croak("panic: yylex");
1238 case LEX_INTERPSTART:
1239 if (bufptr == bufend)
1240 return sublex_done();
1242 lex_dojoin = (*bufptr == '@');
1243 lex_state = LEX_INTERPNORMAL;
1245 nextval[nexttoke].ival = 0;
1247 force_ident("\"", '$');
1248 nextval[nexttoke].ival = 0;
1250 nextval[nexttoke].ival = 0;
1252 nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */
1263 case LEX_INTERPENDMAYBE:
1264 if (intuit_more(bufptr)) {
1265 lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */
1273 lex_state = LEX_INTERPCONCAT;
1277 case LEX_INTERPCONCAT:
1280 croak("panic: INTERPCONCAT");
1282 if (bufptr == bufend)
1283 return sublex_done();
1285 if (SvIVX(linestr) == '\'') {
1286 SV *sv = newSVsv(linestr);
1289 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
1293 s = scan_const(bufptr);
1295 lex_state = LEX_INTERPCASEMOD;
1297 lex_state = LEX_INTERPSTART;
1301 nextval[nexttoke] = yylval;
1314 lex_state = LEX_NORMAL;
1315 s = scan_formline(bufptr);
1322 oldoldbufptr = oldbufptr;
1325 fprintf(stderr,"### Tokener expecting %s at %s\n", exp_name[expect], s);
1331 warn("Unrecognized character \\%03o ignored", *s++ & 255);
1335 goto fake_eof; /* emulate EOF on ^D or ^Z */
1339 yyerror("Missing right bracket");
1343 goto retry; /* ignore stray nulls */
1346 if (!in_eval && !preambled) {
1348 sv_setpv(linestr,incl_perldb());
1350 sv_catpv(linestr,";");
1352 while(AvFILL(preambleav) >= 0) {
1353 SV *tmpsv = av_shift(preambleav);
1354 sv_catsv(linestr, tmpsv);
1355 sv_catpv(linestr, ";");
1358 sv_free((SV*)preambleav);
1361 if (minus_n || minus_p) {
1362 sv_catpv(linestr, "LINE: while (<>) {");
1364 sv_catpv(linestr,"chomp;");
1368 if ( splitstr[0] == '/' ||
1369 splitstr[0] == '\'' ||
1370 splitstr[0] == '"' )
1371 sprintf( tmpbuf1, "@F=split(%s);", splitstr );
1373 sprintf( tmpbuf1, "@F=split('%s');", splitstr );
1374 sv_catpv(linestr,tmpbuf1);
1377 sv_catpv(linestr,"@F=split(' ');");
1380 sv_catpv(linestr, "\n");
1381 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1382 bufend = SvPVX(linestr) + SvCUR(linestr);
1383 if (perldb && curstash != debstash) {
1384 SV *sv = NEWSV(85,0);
1386 sv_upgrade(sv, SVt_PVMG);
1387 sv_setsv(sv,linestr);
1388 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1393 if ((s = filter_gets(linestr, rsfp)) == Nullch) {
1396 if (preprocess && !in_eval)
1397 (void)my_pclose(rsfp);
1398 else if ((FILE*)rsfp == stdin)
1404 if (!in_eval && (minus_n || minus_p)) {
1405 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
1406 sv_catpv(linestr,";}");
1407 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1408 bufend = SvPVX(linestr) + SvCUR(linestr);
1409 minus_n = minus_p = 0;
1412 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1413 sv_setpv(linestr,"");
1414 TOKEN(';'); /* not infinite loop because rsfp is NULL now */
1417 if (*s == '#' && s[1] == '!' && instr(s,"perl"))
1420 /* Incest with pod. */
1421 if (*s == '=' && strnEQ(s, "=cut", 4)) {
1422 sv_setpv(linestr, "");
1423 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1424 bufend = SvPVX(linestr) + SvCUR(linestr);
1429 } while (doextract);
1430 oldoldbufptr = oldbufptr = bufptr = s;
1431 if (perldb && curstash != debstash) {
1432 SV *sv = NEWSV(85,0);
1434 sv_upgrade(sv, SVt_PVMG);
1435 sv_setsv(sv,linestr);
1436 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1438 bufend = SvPVX(linestr) + SvCUR(linestr);
1439 if (curcop->cop_line == 1) {
1440 while (s < bufend && isSPACE(*s))
1442 if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */
1444 if (!in_eval && *s == '#' && s[1] == '!') {
1445 d = instr(s,"perl -");
1447 d = instr(s,"perl");
1450 !instr(s,"indir") &&
1451 instr(origargv[0],"perl"))
1460 while (s < bufend && !isSPACE(*s))
1463 while (s < bufend && isSPACE(*s))
1466 Newz(899,newargv,origargc+3,char*);
1468 while (s < bufend && !isSPACE(*s))
1471 Copy(origargv+1, newargv+2, origargc+1, char*);
1477 croak("Can't exec %s", cmd);
1480 int oldpdb = perldb;
1484 while (*d && !isSPACE(*d)) d++;
1485 while (*d == ' ') d++;
1488 while (d = moreswitches(d)) ;
1489 if (perldb && !oldpdb ||
1490 ( minus_n || minus_p ) && !(oldn || oldp) )
1491 /* if we have already added "LINE: while (<>) {",
1492 we must not do it again */
1494 sv_setpv(linestr, "");
1495 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1496 bufend = SvPVX(linestr) + SvCUR(linestr);
1499 (void)gv_fetchfile(origfilename);
1506 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1508 lex_state = LEX_FORMLINE;
1512 case ' ': case '\t': case '\f': case '\r': case 013:
1517 if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) {
1519 while (s < d && *s != '\n')
1524 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1526 lex_state = LEX_FORMLINE;
1536 if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) {
1541 while (s < bufend && (*s == ' ' || *s == '\t'))
1544 if (strnEQ(s,"=>",2)) {
1546 warn("Ambiguous use of -%c => resolved to \"-%c\" =>",
1548 s = force_word(bufptr,WORD,FALSE,FALSE,FALSE);
1549 OPERATOR('-'); /* unary minus */
1551 last_uni = oldbufptr;
1552 last_lop_op = OP_FTEREAD; /* good enough */
1554 case 'r': FTST(OP_FTEREAD);
1555 case 'w': FTST(OP_FTEWRITE);
1556 case 'x': FTST(OP_FTEEXEC);
1557 case 'o': FTST(OP_FTEOWNED);
1558 case 'R': FTST(OP_FTRREAD);
1559 case 'W': FTST(OP_FTRWRITE);
1560 case 'X': FTST(OP_FTREXEC);
1561 case 'O': FTST(OP_FTROWNED);
1562 case 'e': FTST(OP_FTIS);
1563 case 'z': FTST(OP_FTZERO);
1564 case 's': FTST(OP_FTSIZE);
1565 case 'f': FTST(OP_FTFILE);
1566 case 'd': FTST(OP_FTDIR);
1567 case 'l': FTST(OP_FTLINK);
1568 case 'p': FTST(OP_FTPIPE);
1569 case 'S': FTST(OP_FTSOCK);
1570 case 'u': FTST(OP_FTSUID);
1571 case 'g': FTST(OP_FTSGID);
1572 case 'k': FTST(OP_FTSVTX);
1573 case 'b': FTST(OP_FTBLK);
1574 case 'c': FTST(OP_FTCHR);
1575 case 't': FTST(OP_FTTTY);
1576 case 'T': FTST(OP_FTTEXT);
1577 case 'B': FTST(OP_FTBINARY);
1578 case 'M': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTMTIME);
1579 case 'A': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTATIME);
1580 case 'C': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTCTIME);
1582 croak("Unrecognized file test: -%c", tmp);
1589 if (expect == XOPERATOR)
1594 else if (*s == '>') {
1597 if (isIDFIRST(*s)) {
1598 s = force_word(s,METHOD,FALSE,TRUE,FALSE);
1606 if (expect == XOPERATOR)
1609 if (isSPACE(*s) || !isSPACE(*bufptr))
1611 OPERATOR('-'); /* unary minus */
1618 if (expect == XOPERATOR)
1623 if (expect == XOPERATOR)
1626 if (isSPACE(*s) || !isSPACE(*bufptr))
1632 if (expect != XOPERATOR) {
1633 s = scan_ident(s, bufend, tokenbuf, TRUE);
1635 force_ident(tokenbuf, '*');
1648 if (expect != XOPERATOR) {
1649 s = scan_ident(s, bufend, tokenbuf + 1, TRUE);
1654 if (strchr(tokenbuf,':'))
1655 croak(no_myglob,tokenbuf);
1656 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1657 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
1658 force_next(PRIVATEREF);
1661 if (!strchr(tokenbuf,':')) {
1662 if ((tmp = pad_findmy(tokenbuf)) != NOT_IN_PAD) {
1663 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1664 nextval[nexttoke].opval->op_targ = tmp;
1665 force_next(PRIVATEREF);
1669 force_ident(tokenbuf + 1, *tokenbuf);
1697 if (last_lop == oldoldbufptr || last_uni == oldoldbufptr)
1698 oldbufptr = oldoldbufptr; /* allow print(STDOUT 123) */
1703 if (curcop->cop_line < copline)
1704 copline = curcop->cop_line;
1715 if (lex_brackets <= 0)
1716 yyerror("Unmatched right bracket");
1719 if (lex_state == LEX_INTERPNORMAL) {
1720 if (lex_brackets == 0) {
1721 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
1722 lex_state = LEX_INTERPEND;
1729 if (lex_brackets > 100) {
1730 char* newlb = (char*)realloc(lex_brackstack, lex_brackets + 1);
1731 if (newlb != lex_brackstack) {
1733 lex_brackstack = newlb;
1738 if (lex_formbrack) {
1742 if (oldoldbufptr == last_lop)
1743 lex_brackstack[lex_brackets++] = XTERM;
1745 lex_brackstack[lex_brackets++] = XOPERATOR;
1746 OPERATOR(HASHBRACK);
1749 while (s < bufend && (*s == ' ' || *s == '\t'))
1751 if (s < bufend && isALPHA(*s)) {
1752 d = scan_word(s, tokenbuf, FALSE, &len);
1753 while (d < bufend && (*d == ' ' || *d == '\t'))
1757 (keyword(tokenbuf, len) ||
1758 perl_get_cv(tokenbuf, FALSE) ))
1759 warn("Ambiguous use of {%s} resolved to {\"%s\"}",
1760 tokenbuf, tokenbuf);
1761 s = force_word(s,WORD,FALSE,TRUE,FALSE);
1766 lex_brackstack[lex_brackets++] = XSTATE;
1770 lex_brackstack[lex_brackets++] = XOPERATOR;
1775 if (oldoldbufptr == last_lop)
1776 lex_brackstack[lex_brackets++] = XTERM;
1778 lex_brackstack[lex_brackets++] = XOPERATOR;
1781 OPERATOR(HASHBRACK);
1783 for (t = s; t < bufend && isALNUM(*t); t++) ;
1785 else if (*s == '\'' || *s == '"') {
1792 while (t < bufend && isSPACE(*t))
1794 if ((*t == ',' && !isLOWER(*s)) || (*t == '=' && t[1] == '>'))
1795 OPERATOR(HASHBRACK);
1799 lex_brackstack[lex_brackets-1] = XSTATE;
1805 yylval.ival = curcop->cop_line;
1806 if (isSPACE(*s) || *s == '#')
1807 copline = NOLINE; /* invalidate current command line number */
1812 if (lex_brackets <= 0)
1813 yyerror("Unmatched right bracket");
1815 expect = (expectation)lex_brackstack[--lex_brackets];
1816 if (lex_brackets < lex_formbrack)
1818 if (lex_state == LEX_INTERPNORMAL) {
1819 if (lex_brackets == 0) {
1820 if (lex_fakebrack) {
1821 lex_state = LEX_INTERPEND;
1823 return yylex(); /* ignore fake brackets */
1825 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
1826 lex_state = LEX_INTERPEND;
1829 if (lex_brackets < lex_fakebrack) {
1832 return yylex(); /* ignore fake brackets */
1842 if (expect == XOPERATOR) {
1843 if (dowarn && isALPHA(*s) && bufptr == SvPVX(linestr)) {
1851 s = scan_ident(s-1, bufend, tokenbuf, TRUE);
1854 force_ident(tokenbuf, '&');
1858 yylval.ival = (OPpENTERSUB_AMPER<<8);
1877 if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp))
1878 warn("Reversed %c= operator",tmp);
1880 if (expect == XSTATE && isALPHA(tmp) &&
1881 (s == SvPVX(linestr)+1 || s[-2] == '\n') )
1883 if (in_eval && !rsfp) {
1888 if (strnEQ(s,"=cut",4)) {
1905 if (lex_brackets < lex_formbrack) {
1907 for (t = s; *t == ' ' || *t == '\t'; t++) ;
1908 if (*t == '\n' || *t == '#') {
1926 if (expect != XOPERATOR) {
1927 if (s[1] != '<' && !strchr(s,'>'))
1930 s = scan_heredoc(s);
1932 s = scan_inputsymbol(s);
1933 TERM(sublex_start());
1938 SHop(OP_LEFT_SHIFT);
1952 SHop(OP_RIGHT_SHIFT);
1959 if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) {
1960 s = scan_ident(s+1, bufend, tokenbuf+1, FALSE);
1961 if (expect == XOPERATOR) {
1962 if (lex_formbrack && lex_brackets == lex_formbrack) {
1965 return ','; /* grandfather non-comma-format format */
1968 no_op("Array length",s);
1970 else if (!tokenbuf[1])
1972 if (!strchr(tokenbuf+1,':')) {
1974 if ((tmp = pad_findmy(tokenbuf)) != NOT_IN_PAD) {
1975 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1976 nextval[nexttoke].opval->op_targ = tmp;
1978 force_next(PRIVATEREF);
1983 force_ident(tokenbuf+1, *tokenbuf);
1986 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
1987 if (expect == XOPERATOR) {
1988 if (lex_formbrack && lex_brackets == lex_formbrack) {
1991 return ','; /* grandfather non-comma-format format */
1997 expectation oldexpect = expect;
1999 /* This kludge not intended to be bulletproof. */
2000 if (tokenbuf[1] == '[' && !tokenbuf[2]) {
2001 yylval.opval = newSVOP(OP_CONST, 0,
2002 newSViv((IV)compiling.cop_arybase));
2003 yylval.opval->op_private = OPpCONST_ARYBASE;
2009 if (*s == '[' && oldexpect != XREF) {
2010 for (t = s+1; isSPACE(*t) || isALNUM(*t) || *t == '$'; t++) ;
2012 bufptr = skipspace(bufptr);
2013 while (t < bufend && *t != ']') t++;
2014 warn("Multidimensional syntax %.*s not supported",
2015 t-bufptr+1, bufptr);
2018 if (*s == '{' && strEQ(tokenbuf, "$SIG") &&
2019 (t = strchr(s,'}')) && (t = strchr(t,'='))) {
2022 for (t++; isSPACE(*t); t++) ;
2023 if (isIDFIRST(*t)) {
2024 t = scan_word(t, tmpbuf, TRUE, &len);
2025 if (*t != '(' && perl_get_cv(tmpbuf, FALSE))
2026 warn("You need to quote \"%s\"", tmpbuf);
2031 if (lex_state == LEX_NORMAL && isSPACE(*s)) {
2032 bool islop = (last_lop == oldoldbufptr);
2034 if (!islop || last_lop_op == OP_GREPSTART)
2036 else if (strchr("$@\"'`q", *s))
2037 expect = XTERM; /* e.g. print $fh "foo" */
2038 else if (strchr("&*<%", *s) && isIDFIRST(s[1]))
2039 expect = XTERM; /* e.g. print $fh &sub */
2040 else if (isDIGIT(*s))
2041 expect = XTERM; /* e.g. print $fh 3 */
2042 else if (*s == '.' && isDIGIT(s[1]))
2043 expect = XTERM; /* e.g. print $fh .3 */
2044 else if (strchr("/?-+", *s) && !isSPACE(s[1]))
2045 expect = XTERM; /* e.g. print $fh -1 */
2046 else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]))
2047 expect = XTERM; /* print $fh <<"EOF" */
2050 if (strchr(tokenbuf,':'))
2051 croak(no_myglob,tokenbuf);
2052 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2053 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
2054 force_next(PRIVATEREF);
2056 else if (!strchr(tokenbuf,':')) {
2057 if (oldexpect != XREF || oldoldbufptr == last_lop) {
2058 if (intuit_more(s)) {
2065 if ((tmp = pad_findmy(tokenbuf)) != NOT_IN_PAD) {
2066 if (!tokenbuf[2] && *tokenbuf =='$' &&
2067 tokenbuf[1] <= 'b' && tokenbuf[1] >= 'a')
2069 for (d = in_eval ? oldoldbufptr : SvPVX(linestr);
2070 d < bufend && *d != '\n';
2073 if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) {
2074 croak("Can't use \"my %s\" in sort comparison",
2079 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2080 nextval[nexttoke].opval->op_targ = tmp;
2081 force_next(PRIVATEREF);
2084 force_ident(tokenbuf+1, *tokenbuf);
2087 force_ident(tokenbuf+1, *tokenbuf);
2091 yyerror("Final $ should be \\$ or $name");
2097 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
2098 if (expect == XOPERATOR)
2106 if (strchr(tokenbuf,':'))
2107 croak(no_myglob,tokenbuf);
2108 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2109 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
2110 force_next(PRIVATEREF);
2113 else if (!strchr(tokenbuf,':')) {
2114 if (intuit_more(s)) {
2118 if ((tmp = pad_findmy(tokenbuf)) != NOT_IN_PAD) {
2119 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2120 nextval[nexttoke].opval->op_targ = tmp;
2121 force_next(PRIVATEREF);
2126 /* Force them to make up their mind on "@foo". */
2127 if (lex_state != LEX_NORMAL && !lex_brackets &&
2128 ( !(gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV)) ||
2134 sprintf(tmpbuf, "Literal @%s now requires backslash",tokenbuf+1);
2138 /* Warn about @ where they meant $. */
2140 if (*s == '[' || *s == '{') {
2142 while (*t && (isALNUM(*t) || strchr(" \t$#+-'\"", *t)))
2144 if (*t == '}' || *t == ']') {
2146 bufptr = skipspace(bufptr);
2147 warn("Scalar value %.*s better written as $%.*s",
2148 t-bufptr, bufptr, t-bufptr-1, bufptr+1);
2152 force_ident(tokenbuf+1, *tokenbuf);
2156 yyerror("Final @ should be \\@ or @name");
2161 case '/': /* may either be division or pattern */
2162 case '?': /* may either be conditional or pattern */
2163 if (expect != XOPERATOR) {
2166 TERM(sublex_start());
2174 if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' &&
2175 (s == SvPVX(linestr) || s[-1] == '\n') ) {
2180 if (expect == XOPERATOR || !isDIGIT(s[1])) {
2186 yylval.ival = OPf_SPECIAL;
2192 if (expect != XOPERATOR)
2197 case '0': case '1': case '2': case '3': case '4':
2198 case '5': case '6': case '7': case '8': case '9':
2200 if (expect == XOPERATOR)
2206 if (expect == XOPERATOR) {
2207 if (lex_formbrack && lex_brackets == lex_formbrack) {
2210 return ','; /* grandfather non-comma-format format */
2216 missingterm((char*)0);
2217 yylval.ival = OP_CONST;
2218 TERM(sublex_start());
2222 if (expect == XOPERATOR) {
2223 if (lex_formbrack && lex_brackets == lex_formbrack) {
2226 return ','; /* grandfather non-comma-format format */
2232 missingterm((char*)0);
2233 yylval.ival = OP_CONST;
2234 for (d = SvPV(lex_stuff, len); len; len--, d++) {
2235 if (*d == '$' || *d == '@' || *d == '\\') {
2236 yylval.ival = OP_STRINGIFY;
2240 TERM(sublex_start());
2244 if (expect == XOPERATOR)
2245 no_op("Backticks",s);
2247 missingterm((char*)0);
2248 yylval.ival = OP_BACKTICK;
2250 TERM(sublex_start());
2254 if (dowarn && lex_inwhat && isDIGIT(*s))
2255 warn("Can't use \\%c to mean $%c in expression", *s, *s);
2256 if (expect == XOPERATOR)
2257 no_op("Backslash",s);
2261 if (isDIGIT(s[1]) && expect == XOPERATOR) {
2297 s = scan_word(s, tokenbuf, FALSE, &len);
2299 if (*s == ':' && s[1] == ':' && strNE(tokenbuf, "CORE"))
2302 tmp = keyword(tokenbuf, len);
2304 /* Is this a word before a => operator? */
2306 while (d < bufend && (*d == ' ' || *d == '\t'))
2307 d++; /* no comments skipped here, or s### is misparsed */
2308 if (strnEQ(d,"=>",2)) {
2310 if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE)))
2311 warn("Ambiguous use of %s => resolved to \"%s\" =>",
2312 tokenbuf, tokenbuf);
2313 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2314 yylval.opval->op_private = OPpCONST_BARE;
2318 if (tmp < 0) { /* second-class keyword? */
2320 if (expect != XOPERATOR &&
2321 (*s != ':' || s[1] != ':') &&
2322 (gv = gv_fetchpv(tokenbuf, FALSE, SVt_PVCV)) &&
2334 default: /* not a keyword */
2337 char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]);
2339 /* Get the rest if it looks like a package qualifier */
2341 if (*s == '\'' || *s == ':' && s[1] == ':') {
2342 s = scan_word(s, tokenbuf + len, TRUE, &len);
2344 croak("Bad name after %s::", tokenbuf);
2347 /* Do special processing at start of statement. */
2349 if (expect == XSTATE) {
2350 while (isSPACE(*s)) s++;
2351 if (*s == ':') { /* It's a label. */
2352 yylval.pval = savepv(tokenbuf);
2358 else if (expect == XOPERATOR) {
2359 if (bufptr == SvPVX(linestr)) {
2365 no_op("Bare word",s);
2368 /* Look for a subroutine with this name in current package. */
2370 gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV);
2372 /* Presume this is going to be a bareword of some sort. */
2375 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2376 yylval.opval->op_private = OPpCONST_BARE;
2378 /* See if it's the indirect object for a list operator. */
2381 oldoldbufptr < bufptr &&
2382 (oldoldbufptr == last_lop || oldoldbufptr == last_uni) &&
2383 /* NO SKIPSPACE BEFORE HERE! */
2385 (opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) )
2387 bool immediate_paren = *s == '(';
2389 /* (Now we can afford to cross potential line boundary.) */
2392 /* Two barewords in a row may indicate method call. */
2394 if ((isALPHA(*s) || *s == '$') && (tmp=intuit_method(s,gv)))
2397 /* If not a declared subroutine, it's an indirect object. */
2398 /* (But it's an indir obj regardless for sort.) */
2400 if ((last_lop_op == OP_SORT ||
2401 (!immediate_paren && (!gv || !GvCV(gv))) ) &&
2402 (last_lop_op != OP_MAPSTART && last_lop_op != OP_GREPSTART)){
2403 expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR;
2408 /* If followed by a paren, it's certainly a subroutine. */
2414 nextval[nexttoke].opval = yylval.opval;
2421 /* If followed by var or block, call it a method (unless sub) */
2423 if ((*s == '$' || *s == '{') && (!gv || !GvCV(gv))) {
2424 last_lop = oldbufptr;
2425 last_lop_op = OP_METHOD;
2429 /* If followed by a bareword, see if it looks like indir obj. */
2431 if ((isALPHA(*s) || *s == '$') && (tmp = intuit_method(s,gv)))
2434 /* Not a method, so call it a subroutine (if defined) */
2436 if (gv && GvCV(gv)) {
2439 nextval[nexttoke].opval = yylval.opval;
2445 if (lastchar == '-')
2446 warn("Ambiguous use of -%s resolved as -&%s()",
2447 tokenbuf, tokenbuf);
2448 last_lop = oldbufptr;
2449 last_lop_op = OP_ENTERSUB;
2450 /* Resolve to GV now. */
2451 op_free(yylval.opval);
2452 yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv));
2453 /* Is there a prototype? */
2456 char *proto = SvPV((SV*)cv, len);
2459 if (strEQ(proto, "$"))
2461 if (*proto == '&' && *s == '{') {
2462 sv_setpv(subname,"__ANON__");
2466 nextval[nexttoke].opval = yylval.opval;
2472 if (hints & HINT_STRICT_SUBS &&
2475 last_lop_op != OP_ACCEPT &&
2476 last_lop_op != OP_PIPE_OP &&
2477 last_lop_op != OP_SOCKPAIR)
2480 "Bareword \"%s\" not allowed while \"strict subs\" in use",
2485 /* Call it a bare word */
2489 if (lastchar != '-') {
2490 for (d = tokenbuf; *d && isLOWER(*d); d++) ;
2492 warn(warn_reserved, tokenbuf);
2495 if (lastchar && strchr("*%&", lastchar)) {
2496 warn("Operator or semicolon missing before %c%s",
2497 lastchar, tokenbuf);
2498 warn("Ambiguous use of %c resolved as operator %c",
2499 lastchar, lastchar);
2505 case KEY___FILE__: {
2506 if (tokenbuf[2] == 'L')
2507 (void)sprintf(tokenbuf,"%ld",(long)curcop->cop_line);
2509 strcpy(tokenbuf, SvPVX(GvSV(curcop->cop_filegv)));
2510 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2519 if (rsfp && (!in_eval || tokenbuf[2] == 'D')) {
2521 char *pname = "main";
2522 if (tokenbuf[2] == 'D')
2523 pname = HvNAME(curstash ? curstash : defstash);
2524 sprintf(dname,"%s::DATA", pname);
2525 gv = gv_fetchpv(dname,TRUE, SVt_PVIO);
2528 GvIOp(gv) = newIO();
2529 IoIFP(GvIOp(gv)) = rsfp;
2530 #if defined(HAS_FCNTL) && defined(F_SETFD)
2532 int fd = fileno(rsfp);
2533 fcntl(fd,F_SETFD,fd >= 3);
2537 IoTYPE(GvIOp(gv)) = '|';
2538 else if ((FILE*)rsfp == stdin)
2539 IoTYPE(GvIOp(gv)) = '-';
2541 IoTYPE(GvIOp(gv)) = '<';
2551 if (expect == XSTATE) {
2558 if (*s == ':' && s[1] == ':') {
2561 s = scan_word(s, tokenbuf, FALSE, &len);
2562 tmp = keyword(tokenbuf, len);
2576 LOP(OP_ACCEPT,XTERM);
2582 LOP(OP_ATAN2,XTERM);
2591 LOP(OP_BLESS,XTERM);
2600 (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */
2620 LOP(OP_CRYPT,XTERM);
2624 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
2625 if (*d != '0' && isDIGIT(*d))
2626 yywarn("chmod: mode argument is missing initial 0");
2628 LOP(OP_CHMOD,XTERM);
2631 LOP(OP_CHOWN,XTERM);
2634 LOP(OP_CONNECT,XTERM);
2650 s = force_word(s,WORD,FALSE,TRUE,FALSE);
2654 hints |= HINT_BLOCK_SCOPE;
2664 gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV);
2665 LOP(OP_DBMOPEN,XTERM);
2671 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2678 yylval.ival = curcop->cop_line;
2692 expect = (*s == '{') ? XTERMBLOCK : XTERM;
2693 UNIBRACK(OP_ENTEREVAL);
2708 case KEY_endhostent:
2714 case KEY_endservent:
2717 case KEY_endprotoent:
2728 yylval.ival = curcop->cop_line;
2729 while (s < bufend && isSPACE(*s))
2732 croak("Missing $ on loop variable");
2736 LOP(OP_FORMLINE,XTERM);
2742 LOP(OP_FCNTL,XTERM);
2748 LOP(OP_FLOCK,XTERM);
2757 LOP(OP_GREPSTART, *s == '(' ? XTERM : XREF);
2760 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2775 case KEY_getpriority:
2776 LOP(OP_GETPRIORITY,XTERM);
2778 case KEY_getprotobyname:
2781 case KEY_getprotobynumber:
2782 LOP(OP_GPBYNUMBER,XTERM);
2784 case KEY_getprotoent:
2796 case KEY_getpeername:
2797 UNI(OP_GETPEERNAME);
2799 case KEY_gethostbyname:
2802 case KEY_gethostbyaddr:
2803 LOP(OP_GHBYADDR,XTERM);
2805 case KEY_gethostent:
2808 case KEY_getnetbyname:
2811 case KEY_getnetbyaddr:
2812 LOP(OP_GNBYADDR,XTERM);
2817 case KEY_getservbyname:
2818 LOP(OP_GSBYNAME,XTERM);
2820 case KEY_getservbyport:
2821 LOP(OP_GSBYPORT,XTERM);
2823 case KEY_getservent:
2826 case KEY_getsockname:
2827 UNI(OP_GETSOCKNAME);
2829 case KEY_getsockopt:
2830 LOP(OP_GSOCKOPT,XTERM);
2852 yylval.ival = curcop->cop_line;
2856 LOP(OP_INDEX,XTERM);
2862 LOP(OP_IOCTL,XTERM);
2874 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2906 LOP(OP_LISTEN,XTERM);
2913 TERM(sublex_start());
2916 LOP(OP_MAPSTART,XREF);
2919 LOP(OP_MKDIR,XTERM);
2922 LOP(OP_MSGCTL,XTERM);
2925 LOP(OP_MSGGET,XTERM);
2928 LOP(OP_MSGRCV,XTERM);
2931 LOP(OP_MSGSND,XTERM);
2939 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2946 if (expect != XSTATE)
2947 yyerror("\"no\" not allowed in expression");
2948 s = force_word(s,WORD,FALSE,TRUE,FALSE);
2957 if (isIDFIRST(*s)) {
2959 for (d = s; isALNUM(*d); d++) ;
2961 if (strchr("|&*+-=!?:.", *t))
2962 warn("Precedence problem: open %.*s should be open(%.*s)",
2968 yylval.ival = OP_OR;
2978 LOP(OP_OPEN_DIR,XTERM);
2981 checkcomma(s,tokenbuf,"filehandle");
2985 checkcomma(s,tokenbuf,"filehandle");
3004 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3008 LOP(OP_PIPE_OP,XTERM);
3013 missingterm((char*)0);
3014 yylval.ival = OP_CONST;
3015 TERM(sublex_start());
3023 missingterm((char*)0);
3025 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff));
3029 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(" ",1));
3032 yylval.ival = OP_SPLIT;
3036 last_lop = oldbufptr;
3037 last_lop_op = OP_SPLIT;
3043 missingterm((char*)0);
3044 yylval.ival = OP_STRINGIFY;
3045 if (SvIVX(lex_stuff) == '\'')
3046 SvIVX(lex_stuff) = 0; /* qq'$foo' should intepolate */
3047 TERM(sublex_start());
3052 missingterm((char*)0);
3053 yylval.ival = OP_BACKTICK;
3055 TERM(sublex_start());
3062 s = force_word(s,WORD,TRUE,TRUE,FALSE);
3063 if (isIDFIRST(*tokenbuf))
3064 gv_stashpv(tokenbuf, TRUE);
3066 yyerror("<> should be quotes");
3073 s = force_word(s,WORD,TRUE,FALSE,FALSE);
3077 LOP(OP_RENAME,XTERM);
3086 LOP(OP_RINDEX,XTERM);
3109 LOP(OP_REVERSE,XTERM);
3120 TERM(sublex_start());
3122 TOKEN(1); /* force error */
3131 LOP(OP_SELECT,XTERM);
3137 LOP(OP_SEMCTL,XTERM);
3140 LOP(OP_SEMGET,XTERM);
3143 LOP(OP_SEMOP,XTERM);
3149 LOP(OP_SETPGRP,XTERM);
3151 case KEY_setpriority:
3152 LOP(OP_SETPRIORITY,XTERM);
3154 case KEY_sethostent:
3160 case KEY_setservent:
3163 case KEY_setprotoent:
3173 LOP(OP_SEEKDIR,XTERM);
3175 case KEY_setsockopt:
3176 LOP(OP_SSOCKOPT,XTERM);
3182 LOP(OP_SHMCTL,XTERM);
3185 LOP(OP_SHMGET,XTERM);
3188 LOP(OP_SHMREAD,XTERM);
3191 LOP(OP_SHMWRITE,XTERM);
3194 LOP(OP_SHUTDOWN,XTERM);
3203 LOP(OP_SOCKET,XTERM);
3205 case KEY_socketpair:
3206 LOP(OP_SOCKPAIR,XTERM);
3209 checkcomma(s,tokenbuf,"subroutine name");
3211 if (*s == ';' || *s == ')') /* probably a close */
3212 croak("sort is now a reserved word");
3214 s = force_word(s,WORD,TRUE,TRUE,TRUE);
3218 LOP(OP_SPLIT,XTERM);
3221 LOP(OP_SPRINTF,XTERM);
3224 LOP(OP_SPLICE,XTERM);
3240 LOP(OP_SUBSTR,XTERM);
3247 if (isIDFIRST(*s) || *s == '\'' || *s == ':') {
3250 d = scan_word(s, tmpbuf, TRUE, &len);
3251 if (strchr(tmpbuf, ':'))
3252 sv_setpv(subname, tmpbuf);
3254 sv_setsv(subname,curstname);
3255 sv_catpvn(subname,"::",2);
3256 sv_catpvn(subname,tmpbuf,len);
3258 s = force_word(s,WORD,FALSE,TRUE,TRUE);
3262 expect = XTERMBLOCK;
3263 sv_setpv(subname,"?");
3266 if (tmp == KEY_format) {
3269 lex_formbrack = lex_brackets + 1;
3273 /* Look for a prototype */
3278 SvREFCNT_dec(lex_stuff);
3280 croak("Prototype not terminated");
3283 nextval[1] = nextval[0];
3284 nexttype[1] = nexttype[0];
3285 nextval[0].opval = (OP*)newSVOP(OP_CONST, 0, lex_stuff);
3286 nexttype[0] = THING;
3287 if (nexttoke == 1) {
3288 lex_defer = lex_state;
3289 lex_expect = expect;
3290 lex_state = LEX_KNOWNEXT;
3295 if (*SvPV(subname,na) == '?') {
3296 sv_setpv(subname,"__ANON__");
3303 LOP(OP_SYSTEM,XREF);
3306 LOP(OP_SYMLINK,XTERM);
3309 LOP(OP_SYSCALL,XTERM);
3312 LOP(OP_SYSOPEN,XTERM);
3315 LOP(OP_SYSREAD,XTERM);
3318 LOP(OP_SYSWRITE,XTERM);
3322 TERM(sublex_start());
3343 LOP(OP_TRUNCATE,XTERM);
3355 yylval.ival = curcop->cop_line;
3359 yylval.ival = curcop->cop_line;
3363 LOP(OP_UNLINK,XTERM);
3369 LOP(OP_UNPACK,XTERM);
3372 LOP(OP_UTIME,XTERM);
3376 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
3377 if (*d != '0' && isDIGIT(*d))
3378 yywarn("umask: argument is missing initial 0");
3383 LOP(OP_UNSHIFT,XTERM);
3386 if (expect != XSTATE)
3387 yyerror("\"use\" not allowed in expression");
3388 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3400 yylval.ival = curcop->cop_line;
3404 hints |= HINT_BLOCK_SCOPE;
3411 LOP(OP_WAITPID,XTERM);
3417 gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */
3421 if (expect == XOPERATOR)
3427 yylval.ival = OP_XOR;
3432 TERM(sublex_start());
3445 if (strEQ(d,"__LINE__")) return -KEY___LINE__;
3446 if (strEQ(d,"__FILE__")) return -KEY___FILE__;
3447 if (strEQ(d,"__DATA__")) return KEY___DATA__;
3448 if (strEQ(d,"__END__")) return KEY___END__;
3452 if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD;
3457 if (strEQ(d,"and")) return -KEY_and;
3458 if (strEQ(d,"abs")) return -KEY_abs;
3461 if (strEQ(d,"alarm")) return -KEY_alarm;
3462 if (strEQ(d,"atan2")) return -KEY_atan2;
3465 if (strEQ(d,"accept")) return -KEY_accept;
3470 if (strEQ(d,"BEGIN")) return KEY_BEGIN;
3473 if (strEQ(d,"bless")) return -KEY_bless;
3474 if (strEQ(d,"bind")) return -KEY_bind;
3475 if (strEQ(d,"binmode")) return -KEY_binmode;
3478 if (strEQ(d,"CORE")) return -KEY_CORE;
3483 if (strEQ(d,"cmp")) return -KEY_cmp;
3484 if (strEQ(d,"chr")) return -KEY_chr;
3485 if (strEQ(d,"cos")) return -KEY_cos;
3488 if (strEQ(d,"chop")) return KEY_chop;
3491 if (strEQ(d,"close")) return -KEY_close;
3492 if (strEQ(d,"chdir")) return -KEY_chdir;
3493 if (strEQ(d,"chomp")) return KEY_chomp;
3494 if (strEQ(d,"chmod")) return -KEY_chmod;
3495 if (strEQ(d,"chown")) return -KEY_chown;
3496 if (strEQ(d,"crypt")) return -KEY_crypt;
3499 if (strEQ(d,"chroot")) return -KEY_chroot;
3500 if (strEQ(d,"caller")) return -KEY_caller;
3503 if (strEQ(d,"connect")) return -KEY_connect;
3506 if (strEQ(d,"closedir")) return -KEY_closedir;
3507 if (strEQ(d,"continue")) return -KEY_continue;
3512 if (strEQ(d,"DESTROY")) return KEY_DESTROY;
3517 if (strEQ(d,"do")) return KEY_do;
3520 if (strEQ(d,"die")) return -KEY_die;
3523 if (strEQ(d,"dump")) return -KEY_dump;
3526 if (strEQ(d,"delete")) return KEY_delete;
3529 if (strEQ(d,"defined")) return KEY_defined;
3530 if (strEQ(d,"dbmopen")) return -KEY_dbmopen;
3533 if (strEQ(d,"dbmclose")) return -KEY_dbmclose;
3538 if (strEQ(d,"EQ")) { deprecate(d); return -KEY_eq;}
3539 if (strEQ(d,"END")) return KEY_END;
3544 if (strEQ(d,"eq")) return -KEY_eq;
3547 if (strEQ(d,"eof")) return -KEY_eof;
3548 if (strEQ(d,"exp")) return -KEY_exp;
3551 if (strEQ(d,"else")) return KEY_else;
3552 if (strEQ(d,"exit")) return -KEY_exit;
3553 if (strEQ(d,"eval")) return KEY_eval;
3554 if (strEQ(d,"exec")) return -KEY_exec;
3555 if (strEQ(d,"each")) return KEY_each;
3558 if (strEQ(d,"elsif")) return KEY_elsif;
3561 if (strEQ(d,"exists")) return KEY_exists;
3562 if (strEQ(d,"elseif")) warn("elseif should be elsif");
3565 if (strEQ(d,"endgrent")) return -KEY_endgrent;
3566 if (strEQ(d,"endpwent")) return -KEY_endpwent;
3569 if (strEQ(d,"endnetent")) return -KEY_endnetent;
3572 if (strEQ(d,"endhostent")) return -KEY_endhostent;
3573 if (strEQ(d,"endservent")) return -KEY_endservent;
3576 if (strEQ(d,"endprotoent")) return -KEY_endprotoent;
3583 if (strEQ(d,"for")) return KEY_for;
3586 if (strEQ(d,"fork")) return -KEY_fork;
3589 if (strEQ(d,"fcntl")) return -KEY_fcntl;
3590 if (strEQ(d,"flock")) return -KEY_flock;
3593 if (strEQ(d,"format")) return KEY_format;
3594 if (strEQ(d,"fileno")) return -KEY_fileno;
3597 if (strEQ(d,"foreach")) return KEY_foreach;
3600 if (strEQ(d,"formline")) return -KEY_formline;
3606 if (strEQ(d,"GT")) { deprecate(d); return -KEY_gt;}
3607 if (strEQ(d,"GE")) { deprecate(d); return -KEY_ge;}
3611 if (strnEQ(d,"get",3)) {
3616 if (strEQ(d,"ppid")) return -KEY_getppid;
3617 if (strEQ(d,"pgrp")) return -KEY_getpgrp;
3620 if (strEQ(d,"pwent")) return -KEY_getpwent;
3621 if (strEQ(d,"pwnam")) return -KEY_getpwnam;
3622 if (strEQ(d,"pwuid")) return -KEY_getpwuid;
3625 if (strEQ(d,"peername")) return -KEY_getpeername;
3626 if (strEQ(d,"protoent")) return -KEY_getprotoent;
3627 if (strEQ(d,"priority")) return -KEY_getpriority;
3630 if (strEQ(d,"protobyname")) return -KEY_getprotobyname;
3633 if (strEQ(d,"protobynumber"))return -KEY_getprotobynumber;
3637 else if (*d == 'h') {
3638 if (strEQ(d,"hostbyname")) return -KEY_gethostbyname;
3639 if (strEQ(d,"hostbyaddr")) return -KEY_gethostbyaddr;
3640 if (strEQ(d,"hostent")) return -KEY_gethostent;
3642 else if (*d == 'n') {
3643 if (strEQ(d,"netbyname")) return -KEY_getnetbyname;
3644 if (strEQ(d,"netbyaddr")) return -KEY_getnetbyaddr;
3645 if (strEQ(d,"netent")) return -KEY_getnetent;
3647 else if (*d == 's') {
3648 if (strEQ(d,"servbyname")) return -KEY_getservbyname;
3649 if (strEQ(d,"servbyport")) return -KEY_getservbyport;
3650 if (strEQ(d,"servent")) return -KEY_getservent;
3651 if (strEQ(d,"sockname")) return -KEY_getsockname;
3652 if (strEQ(d,"sockopt")) return -KEY_getsockopt;
3654 else if (*d == 'g') {
3655 if (strEQ(d,"grent")) return -KEY_getgrent;
3656 if (strEQ(d,"grnam")) return -KEY_getgrnam;
3657 if (strEQ(d,"grgid")) return -KEY_getgrgid;
3659 else if (*d == 'l') {
3660 if (strEQ(d,"login")) return -KEY_getlogin;
3662 else if (strEQ(d,"c")) return -KEY_getc;
3667 if (strEQ(d,"gt")) return -KEY_gt;
3668 if (strEQ(d,"ge")) return -KEY_ge;
3671 if (strEQ(d,"grep")) return KEY_grep;
3672 if (strEQ(d,"goto")) return KEY_goto;
3673 if (strEQ(d,"glob")) return -KEY_glob;
3676 if (strEQ(d,"gmtime")) return -KEY_gmtime;
3681 if (strEQ(d,"hex")) return -KEY_hex;
3686 if (strEQ(d,"if")) return KEY_if;
3689 if (strEQ(d,"int")) return -KEY_int;
3692 if (strEQ(d,"index")) return -KEY_index;
3693 if (strEQ(d,"ioctl")) return -KEY_ioctl;
3698 if (strEQ(d,"join")) return -KEY_join;
3702 if (strEQ(d,"keys")) return KEY_keys;
3703 if (strEQ(d,"kill")) return -KEY_kill;
3708 if (strEQ(d,"LT")) { deprecate(d); return -KEY_lt;}
3709 if (strEQ(d,"LE")) { deprecate(d); return -KEY_le;}
3715 if (strEQ(d,"lt")) return -KEY_lt;
3716 if (strEQ(d,"le")) return -KEY_le;
3717 if (strEQ(d,"lc")) return -KEY_lc;
3720 if (strEQ(d,"log")) return -KEY_log;
3723 if (strEQ(d,"last")) return KEY_last;
3724 if (strEQ(d,"link")) return -KEY_link;
3727 if (strEQ(d,"local")) return KEY_local;
3728 if (strEQ(d,"lstat")) return -KEY_lstat;
3731 if (strEQ(d,"length")) return -KEY_length;
3732 if (strEQ(d,"listen")) return -KEY_listen;
3735 if (strEQ(d,"lcfirst")) return -KEY_lcfirst;
3738 if (strEQ(d,"localtime")) return -KEY_localtime;
3744 case 1: return KEY_m;
3746 if (strEQ(d,"my")) return KEY_my;
3749 if (strEQ(d,"map")) return KEY_map;
3752 if (strEQ(d,"mkdir")) return -KEY_mkdir;
3755 if (strEQ(d,"msgctl")) return -KEY_msgctl;
3756 if (strEQ(d,"msgget")) return -KEY_msgget;
3757 if (strEQ(d,"msgrcv")) return -KEY_msgrcv;
3758 if (strEQ(d,"msgsnd")) return -KEY_msgsnd;
3763 if (strEQ(d,"NE")) { deprecate(d); return -KEY_ne;}
3766 if (strEQ(d,"next")) return KEY_next;
3767 if (strEQ(d,"ne")) return -KEY_ne;
3768 if (strEQ(d,"not")) return -KEY_not;
3769 if (strEQ(d,"no")) return KEY_no;
3774 if (strEQ(d,"or")) return -KEY_or;
3777 if (strEQ(d,"ord")) return -KEY_ord;
3778 if (strEQ(d,"oct")) return -KEY_oct;
3781 if (strEQ(d,"open")) return -KEY_open;
3784 if (strEQ(d,"opendir")) return -KEY_opendir;
3791 if (strEQ(d,"pop")) return KEY_pop;
3792 if (strEQ(d,"pos")) return KEY_pos;
3795 if (strEQ(d,"push")) return KEY_push;
3796 if (strEQ(d,"pack")) return -KEY_pack;
3797 if (strEQ(d,"pipe")) return -KEY_pipe;
3800 if (strEQ(d,"print")) return KEY_print;
3803 if (strEQ(d,"printf")) return KEY_printf;
3806 if (strEQ(d,"package")) return KEY_package;
3809 if (strEQ(d,"prototype")) return KEY_prototype;
3814 if (strEQ(d,"q")) return KEY_q;
3815 if (strEQ(d,"qq")) return KEY_qq;
3816 if (strEQ(d,"qw")) return KEY_qw;
3817 if (strEQ(d,"qx")) return KEY_qx;
3819 else if (strEQ(d,"quotemeta")) return -KEY_quotemeta;
3824 if (strEQ(d,"ref")) return -KEY_ref;
3827 if (strEQ(d,"read")) return -KEY_read;
3828 if (strEQ(d,"rand")) return -KEY_rand;
3829 if (strEQ(d,"recv")) return -KEY_recv;
3830 if (strEQ(d,"redo")) return KEY_redo;
3833 if (strEQ(d,"rmdir")) return -KEY_rmdir;
3834 if (strEQ(d,"reset")) return -KEY_reset;
3837 if (strEQ(d,"return")) return KEY_return;
3838 if (strEQ(d,"rename")) return -KEY_rename;
3839 if (strEQ(d,"rindex")) return -KEY_rindex;
3842 if (strEQ(d,"require")) return -KEY_require;
3843 if (strEQ(d,"reverse")) return -KEY_reverse;
3844 if (strEQ(d,"readdir")) return -KEY_readdir;
3847 if (strEQ(d,"readlink")) return -KEY_readlink;
3848 if (strEQ(d,"readline")) return -KEY_readline;
3849 if (strEQ(d,"readpipe")) return -KEY_readpipe;
3852 if (strEQ(d,"rewinddir")) return -KEY_rewinddir;
3858 case 0: return KEY_s;
3860 if (strEQ(d,"scalar")) return KEY_scalar;
3865 if (strEQ(d,"seek")) return -KEY_seek;
3866 if (strEQ(d,"send")) return -KEY_send;
3869 if (strEQ(d,"semop")) return -KEY_semop;
3872 if (strEQ(d,"select")) return -KEY_select;
3873 if (strEQ(d,"semctl")) return -KEY_semctl;
3874 if (strEQ(d,"semget")) return -KEY_semget;
3877 if (strEQ(d,"setpgrp")) return -KEY_setpgrp;
3878 if (strEQ(d,"seekdir")) return -KEY_seekdir;
3881 if (strEQ(d,"setpwent")) return -KEY_setpwent;
3882 if (strEQ(d,"setgrent")) return -KEY_setgrent;
3885 if (strEQ(d,"setnetent")) return -KEY_setnetent;
3888 if (strEQ(d,"setsockopt")) return -KEY_setsockopt;
3889 if (strEQ(d,"sethostent")) return -KEY_sethostent;
3890 if (strEQ(d,"setservent")) return -KEY_setservent;
3893 if (strEQ(d,"setpriority")) return -KEY_setpriority;
3894 if (strEQ(d,"setprotoent")) return -KEY_setprotoent;
3901 if (strEQ(d,"shift")) return KEY_shift;
3904 if (strEQ(d,"shmctl")) return -KEY_shmctl;
3905 if (strEQ(d,"shmget")) return -KEY_shmget;
3908 if (strEQ(d,"shmread")) return -KEY_shmread;
3911 if (strEQ(d,"shmwrite")) return -KEY_shmwrite;
3912 if (strEQ(d,"shutdown")) return -KEY_shutdown;
3917 if (strEQ(d,"sin")) return -KEY_sin;
3920 if (strEQ(d,"sleep")) return -KEY_sleep;
3923 if (strEQ(d,"sort")) return KEY_sort;
3924 if (strEQ(d,"socket")) return -KEY_socket;
3925 if (strEQ(d,"socketpair")) return -KEY_socketpair;
3928 if (strEQ(d,"split")) return KEY_split;
3929 if (strEQ(d,"sprintf")) return -KEY_sprintf;
3930 if (strEQ(d,"splice")) return KEY_splice;
3933 if (strEQ(d,"sqrt")) return -KEY_sqrt;
3936 if (strEQ(d,"srand")) return -KEY_srand;
3939 if (strEQ(d,"stat")) return -KEY_stat;
3940 if (strEQ(d,"study")) return KEY_study;
3943 if (strEQ(d,"substr")) return -KEY_substr;
3944 if (strEQ(d,"sub")) return KEY_sub;
3949 if (strEQ(d,"system")) return -KEY_system;
3952 if (strEQ(d,"sysopen")) return -KEY_sysopen;
3953 if (strEQ(d,"sysread")) return -KEY_sysread;
3954 if (strEQ(d,"symlink")) return -KEY_symlink;
3955 if (strEQ(d,"syscall")) return -KEY_syscall;
3958 if (strEQ(d,"syswrite")) return -KEY_syswrite;
3967 if (strEQ(d,"tr")) return KEY_tr;
3970 if (strEQ(d,"tie")) return KEY_tie;
3973 if (strEQ(d,"tell")) return -KEY_tell;
3974 if (strEQ(d,"tied")) return KEY_tied;
3975 if (strEQ(d,"time")) return -KEY_time;
3978 if (strEQ(d,"times")) return -KEY_times;
3981 if (strEQ(d,"telldir")) return -KEY_telldir;
3984 if (strEQ(d,"truncate")) return -KEY_truncate;
3991 if (strEQ(d,"uc")) return -KEY_uc;
3994 if (strEQ(d,"use")) return KEY_use;
3997 if (strEQ(d,"undef")) return KEY_undef;
3998 if (strEQ(d,"until")) return KEY_until;
3999 if (strEQ(d,"untie")) return KEY_untie;
4000 if (strEQ(d,"utime")) return -KEY_utime;
4001 if (strEQ(d,"umask")) return -KEY_umask;
4004 if (strEQ(d,"unless")) return KEY_unless;
4005 if (strEQ(d,"unpack")) return -KEY_unpack;
4006 if (strEQ(d,"unlink")) return -KEY_unlink;
4009 if (strEQ(d,"unshift")) return KEY_unshift;
4010 if (strEQ(d,"ucfirst")) return -KEY_ucfirst;
4015 if (strEQ(d,"values")) return -KEY_values;
4016 if (strEQ(d,"vec")) return -KEY_vec;
4021 if (strEQ(d,"warn")) return -KEY_warn;
4022 if (strEQ(d,"wait")) return -KEY_wait;
4025 if (strEQ(d,"while")) return KEY_while;
4026 if (strEQ(d,"write")) return -KEY_write;
4029 if (strEQ(d,"waitpid")) return -KEY_waitpid;
4032 if (strEQ(d,"wantarray")) return -KEY_wantarray;
4037 if (len == 1) return -KEY_x;
4038 if (strEQ(d,"xor")) return -KEY_xor;
4041 if (len == 1) return KEY_y;
4050 checkcomma(s,name,what)
4057 if (dowarn && *s == ' ' && s[1] == '(') { /* XXX gotta be a better way */
4059 for (w = s+2; *w && level; w++) {
4066 for (; *w && isSPACE(*w); w++) ;
4067 if (!*w || !strchr(";|})]oa!=", *w)) /* an advisory hack only... */
4068 warn("%s (...) interpreted as function",name);
4070 while (s < bufend && isSPACE(*s))
4074 while (s < bufend && isSPACE(*s))
4076 if (isIDFIRST(*s)) {
4080 while (s < bufend && isSPACE(*s))
4085 kw = keyword(w, s - w) || perl_get_cv(w, FALSE) != 0;
4089 croak("No comma allowed after %s", what);
4095 scan_word(s, dest, allow_package, slp)
4101 register char *d = dest;
4105 else if (*s == '\'' && allow_package && isIDFIRST(s[1])) {
4110 else if (*s == ':' && s[1] == ':' && allow_package && isIDFIRST(s[2])) {
4123 scan_ident(s,send,dest,ck_uni)
4125 register char *send;
4133 if (lex_brackets == 0)
4146 else if (*s == '\'' && isIDFIRST(s[1])) {
4151 else if (*s == ':' && s[1] == ':') {
4162 if (lex_state != LEX_NORMAL)
4163 lex_state = LEX_INTERPENDMAYBE;
4166 if (*s == '$' && s[1] &&
4167 (isALPHA(s[1]) || strchr("$_{", s[1]) || strnEQ(s+1,"::",2)) )
4178 if (*d == '^' && *s && (isUPPER(*s) || strchr("[\\]^_?", *s))) {
4182 if (isSPACE(s[-1])) {
4183 while (s < send && (*s == ' ' || *s == '\t')) s++;
4186 if (isALPHA(*d) || *d == '_') {
4188 while (isALNUM(*s) || *s == ':')
4191 while (s < send && (*s == ' ' || *s == '\t')) s++;
4192 if ((*s == '[' || *s == '{')) {
4193 if (dowarn && keyword(dest, d - dest)) {
4194 char *brack = *s == '[' ? "[...]" : "{...}";
4195 warn("Ambiguous use of %c{%s%s} resolved to %c%s%s",
4196 funny, dest, brack, funny, dest, brack);
4198 lex_fakebrack = lex_brackets+1;
4200 lex_brackstack[lex_brackets++] = XOPERATOR;
4206 if (lex_state == LEX_INTERPNORMAL && !lex_brackets)
4207 lex_state = LEX_INTERPEND;
4211 (keyword(dest, d - dest) || perl_get_cv(dest, FALSE)))
4212 warn("Ambiguous use of %c{%s} resolved to %c%s",
4213 funny, dest, funny, dest);
4216 s = bracket; /* let the parser handle it */
4220 else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s))
4221 lex_state = LEX_INTERPEND;
4225 void pmflag(pmfl,ch)
4234 *pmfl |= PMf_GLOBAL;
4238 *pmfl |= PMf_MULTILINE;
4240 *pmfl |= PMf_SINGLELINE;
4242 *pmfl |= PMf_EXTENDED;
4252 s = scan_str(start);
4255 SvREFCNT_dec(lex_stuff);
4257 croak("Search pattern not terminated");
4259 pm = (PMOP*)newPMOP(OP_MATCH, 0);
4260 if (multi_open == '?')
4261 pm->op_pmflags |= PMf_ONCE;
4263 while (*s && strchr("iogmsx", *s))
4264 pmflag(&pm->op_pmflags,*s++);
4266 pm->op_pmpermflags = pm->op_pmflags;
4268 yylval.ival = OP_MATCH;
4280 yylval.ival = OP_NULL;
4282 s = scan_str(start);
4286 SvREFCNT_dec(lex_stuff);
4288 croak("Substitution pattern not terminated");
4291 if (s[-1] == multi_open)
4297 SvREFCNT_dec(lex_stuff);
4300 SvREFCNT_dec(lex_repl);
4302 croak("Substitution replacement not terminated");
4305 pm = (PMOP*)newPMOP(OP_SUBST, 0);
4306 while (*s && strchr("iogmsex", *s)) {
4312 pmflag(&pm->op_pmflags,*s++);
4317 pm->op_pmflags |= PMf_EVAL;
4318 repl = newSVpv("",0);
4320 sv_catpv(repl, es ? "eval " : "do ");
4321 sv_catpvn(repl, "{ ", 2);
4322 sv_catsv(repl, lex_repl);
4323 sv_catpvn(repl, " };", 2);
4324 SvCOMPILED_on(repl);
4325 SvREFCNT_dec(lex_repl);
4329 pm->op_pmpermflags = pm->op_pmflags;
4331 yylval.ival = OP_SUBST;
4340 if (!pm->op_pmshort && pm->op_pmregexp->regstart &&
4341 (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH)
4343 if (!(pm->op_pmregexp->reganch & ROPT_ANCH))
4344 pm->op_pmflags |= PMf_SCANFIRST;
4345 else if (pm->op_pmflags & PMf_FOLD)
4347 pm->op_pmshort = SvREFCNT_inc(pm->op_pmregexp->regstart);
4348 pm->op_pmslen = SvCUR(pm->op_pmshort);
4350 else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */
4351 if (pm->op_pmshort &&
4352 sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust))
4354 if (pm->op_pmflags & PMf_SCANFIRST) {
4355 SvREFCNT_dec(pm->op_pmshort);
4356 pm->op_pmshort = Nullsv;
4359 SvREFCNT_dec(pm->op_pmregexp->regmust);
4360 pm->op_pmregexp->regmust = Nullsv;
4364 if (!pm->op_pmshort || /* promote the better string */
4365 ((pm->op_pmflags & PMf_SCANFIRST) &&
4366 (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)) )){
4367 SvREFCNT_dec(pm->op_pmshort); /* ok if null */
4368 pm->op_pmshort = pm->op_pmregexp->regmust;
4369 pm->op_pmslen = SvCUR(pm->op_pmshort);
4370 pm->op_pmregexp->regmust = Nullsv;
4371 pm->op_pmflags |= PMf_SCANFIRST;
4387 yylval.ival = OP_NULL;
4389 s = scan_str(start);
4392 SvREFCNT_dec(lex_stuff);
4394 croak("Translation pattern not terminated");
4396 if (s[-1] == multi_open)
4402 SvREFCNT_dec(lex_stuff);
4405 SvREFCNT_dec(lex_repl);
4407 croak("Translation replacement not terminated");
4410 New(803,tbl,256,short);
4411 o = newPVOP(OP_TRANS, 0, (char*)tbl);
4413 complement = delete = squash = 0;
4414 while (*s == 'c' || *s == 'd' || *s == 's') {
4416 complement = OPpTRANS_COMPLEMENT;
4418 delete = OPpTRANS_DELETE;
4420 squash = OPpTRANS_SQUASH;
4423 o->op_private = delete|squash|complement;
4426 yylval.ival = OP_TRANS;
4436 I32 op_type = OP_SCALAR;
4447 for (peek = s; *peek == ' ' || *peek == '\t'; peek++) ;
4448 if (*peek && strchr("`'\"",*peek)) {
4451 s = cpytill(d,s,bufend,term,&len);
4462 deprecate("bare << to mean <<\"\"");
4465 } /* assuming tokenbuf won't clobber */
4470 if (rsfp || !(d=ninstr(s,bufend,d,d+1)))
4471 herewas = newSVpv(s,bufend-s);
4473 s--, herewas = newSVpv(s,d-s);
4474 s += SvCUR(herewas);
4476 tmpstr = NEWSV(87,80);
4477 sv_upgrade(tmpstr, SVt_PVIV);
4482 else if (term == '`') {
4483 op_type = OP_BACKTICK;
4484 SvIVX(tmpstr) = '\\';
4488 multi_start = curcop->cop_line;
4489 multi_open = multi_close = '<';
4493 while (s < bufend &&
4494 (*s != term || bcmp(s,tokenbuf,len) != 0) ) {
4499 curcop->cop_line = multi_start;
4500 missingterm(tokenbuf);
4502 sv_setpvn(tmpstr,d+1,s-d);
4504 sv_catpvn(herewas,s,bufend-s);
4505 sv_setsv(linestr,herewas);
4506 oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr);
4507 bufend = SvPVX(linestr) + SvCUR(linestr);
4510 sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */
4511 while (s >= bufend) { /* multiple line string? */
4513 !(oldoldbufptr = oldbufptr = s = filter_gets(linestr, rsfp))) {
4514 curcop->cop_line = multi_start;
4515 missingterm(tokenbuf);
4518 if (perldb && curstash != debstash) {
4519 SV *sv = NEWSV(88,0);
4521 sv_upgrade(sv, SVt_PVMG);
4522 sv_setsv(sv,linestr);
4523 av_store(GvAV(curcop->cop_filegv),
4524 (I32)curcop->cop_line,sv);
4526 bufend = SvPVX(linestr) + SvCUR(linestr);
4527 if (*s == term && bcmp(s,tokenbuf,len) == 0) {
4530 sv_catsv(linestr,herewas);
4531 bufend = SvPVX(linestr) + SvCUR(linestr);
4535 sv_catsv(tmpstr,linestr);
4538 multi_end = curcop->cop_line;
4540 if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) {
4541 SvLEN_set(tmpstr, SvCUR(tmpstr) + 1);
4542 Renew(SvPVX(tmpstr), SvLEN(tmpstr), char);
4544 SvREFCNT_dec(herewas);
4546 yylval.ival = op_type;
4551 scan_inputsymbol(start)
4554 register char *s = start;
4559 s = cpytill(d, s+1, bufend, '>', &len);
4563 croak("Unterminated <> operator");
4565 if (*d == '$' && d[1]) d++;
4566 while (*d && (isALNUM(*d) || *d == '\'' || *d == ':'))
4568 if (d - tokenbuf != len) {
4569 yylval.ival = OP_GLOB;
4571 s = scan_str(start);
4573 croak("Glob not terminated");
4579 (void)strcpy(d,"ARGV");
4582 if ((tmp = pad_findmy(d)) != NOT_IN_PAD) {
4583 OP *o = newOP(OP_PADSV, 0);
4585 lex_op = (OP*)newUNOP(OP_READLINE, 0, newUNOP(OP_RV2GV, 0, o));
4588 GV *gv = gv_fetchpv(d+1,TRUE, SVt_PV);
4589 lex_op = (OP*)newUNOP(OP_READLINE, 0,
4590 newUNOP(OP_RV2GV, 0,
4591 newUNOP(OP_RV2SV, 0,
4592 newGVOP(OP_GV, 0, gv))));
4594 yylval.ival = OP_NULL;
4597 GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO);
4598 lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv));
4599 yylval.ival = OP_NULL;
4612 register char *s = start;
4621 multi_start = curcop->cop_line;
4623 if (term && (tmps = strchr("([{< )]}> )]}>",term)))
4628 sv_upgrade(sv, SVt_PVIV);
4630 (void)SvPOK_only(sv); /* validate pointer */
4633 SvGROW(sv, SvCUR(sv) + (bufend - s) + 1);
4634 to = SvPVX(sv)+SvCUR(sv);
4635 if (multi_open == multi_close) {
4636 for (; s < bufend; s++,to++) {
4637 if (*s == '\n' && !rsfp)
4639 if (*s == '\\' && s+1 < bufend && term != '\\') {
4645 else if (*s == term)
4651 for (; s < bufend; s++,to++) {
4652 if (*s == '\n' && !rsfp)
4654 if (*s == '\\' && s+1 < bufend && term != '\\') {
4660 else if (*s == term && --brackets <= 0)
4662 else if (*s == multi_open)
4668 SvCUR_set(sv, to - SvPVX(sv));
4670 if (s < bufend) break; /* string ends on this line? */
4673 !(oldoldbufptr = oldbufptr = s = filter_gets(linestr, rsfp))) {
4675 curcop->cop_line = multi_start;
4679 if (perldb && curstash != debstash) {
4680 SV *sv = NEWSV(88,0);
4682 sv_upgrade(sv, SVt_PVMG);
4683 sv_setsv(sv,linestr);
4684 av_store(GvAV(curcop->cop_filegv),
4685 (I32)curcop->cop_line, sv);
4687 bufend = SvPVX(linestr) + SvCUR(linestr);
4689 multi_end = curcop->cop_line;
4691 if (SvCUR(sv) + 5 < SvLEN(sv)) {
4692 SvLEN_set(sv, SvCUR(sv) + 1);
4693 Renew(SvPVX(sv), SvLEN(sv), char);
4706 register char *s = start;
4716 croak("panic: scan_num");
4726 else if (s[1] == '.')
4740 yyerror("Illegal octal digit");
4742 case '0': case '1': case '2': case '3': case '4':
4743 case '5': case '6': case '7':
4747 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
4748 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
4752 i += (*s++ & 7) + 9;
4759 if (tryi32 == i && tryi32 >= 0)
4760 sv_setiv(sv,tryi32);
4762 sv_setnv(sv,(double)i);
4765 case '1': case '2': case '3': case '4': case '5':
4766 case '6': case '7': case '8': case '9': case '.':
4770 while (isDIGIT(*s) || *s == '_') {
4772 if (dowarn && lastub && s - lastub != 3)
4773 warn("Misplaced _ in number");
4779 if (dowarn && lastub && s - lastub != 3)
4780 warn("Misplaced _ in number");
4781 if (*s == '.' && s[1] != '.') {
4784 while (isDIGIT(*s) || *s == '_') {
4791 if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) {
4794 *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */
4795 if (*s == '+' || *s == '-')
4802 value = atof(tokenbuf);
4803 tryi32 = I_32(value);
4804 if (!floatit && (double)tryi32 == value)
4805 sv_setiv(sv,tryi32);
4811 yylval.opval = newSVOP(OP_CONST, 0, sv);
4823 SV *stuff = newSVpv("",0);
4824 bool needargs = FALSE;
4827 if (*s == '.' || *s == '}') {
4829 for (t = s+1; *t == ' ' || *t == '\t'; t++) ;
4833 if (in_eval && !rsfp) {
4834 eol = strchr(s,'\n');
4839 eol = bufend = SvPVX(linestr) + SvCUR(linestr);
4841 for (t = s; t < eol; t++) {
4842 if (*t == '~' && t[1] == '~' && SvCUR(stuff)) {
4844 goto enough; /* ~~ must be first line in formline */
4846 if (*t == '@' || *t == '^')
4849 sv_catpvn(stuff, s, eol-s);
4853 s = filter_gets(linestr, rsfp);
4854 oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr);
4855 bufend = bufptr + SvCUR(linestr);
4858 yyerror("Format not terminated");
4868 lex_state = LEX_NORMAL;
4869 nextval[nexttoke].ival = 0;
4873 lex_state = LEX_FORMLINE;
4874 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff);
4876 nextval[nexttoke].ival = OP_FORMLINE;
4880 SvREFCNT_dec(stuff);
4892 cshlen = strlen(cshname);
4900 int oldsavestack_ix = savestack_ix;
4901 CV* outsidecv = compcv;
4905 assert(SvTYPE(compcv) == SVt_PVCV);
4912 SAVESPTR(comppad_name);
4914 SAVEINT(comppad_name_fill);
4915 SAVEINT(min_intro_pending);
4916 SAVEINT(max_intro_pending);
4917 SAVEINT(pad_reset_pending);
4919 compcv = (CV*)NEWSV(1104,0);
4920 sv_upgrade((SV *)compcv, SVt_PVCV);
4923 comppad_name = newAV();
4924 comppad_name_fill = 0;
4926 av_store(comppad_name, 0, newSVpv("@_", 2));
4927 #endif /* USE_THREADS */
4928 min_intro_pending = 0;
4929 av_push(comppad, Nullsv);
4930 curpad = AvARRAY(comppad);
4932 subline = curcop->cop_line;
4934 comppadlist = newAV();
4935 AvREAL_off(comppadlist);
4936 av_store(comppadlist, 0, (SV*)comppad_name);
4937 av_store(comppadlist, 1, (SV*)comppad);
4939 CvPADLIST(compcv) = comppadlist;
4940 CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc((SV*)outsidecv);
4942 CvOWNER(compcv) = 0;
4943 New(666, CvMUTEXP(compcv), 1, pthread_mutex_t);
4944 MUTEX_INIT(CvMUTEXP(compcv));
4945 New(666, CvCONDP(compcv), 1, pthread_cond_t);
4946 COND_INIT(CvCONDP(compcv));
4947 #endif /* USE_THREADS */
4949 return oldsavestack_ix;
4970 char *tname = tmpbuf;
4972 if (bufptr > oldoldbufptr && bufptr - oldoldbufptr < 200 &&
4973 oldoldbufptr != oldbufptr && oldbufptr != bufptr) {
4974 while (isSPACE(*oldoldbufptr))
4976 sprintf(tname,"near \"%.*s\"",bufptr - oldoldbufptr, oldoldbufptr);
4978 else if (bufptr > oldbufptr && bufptr - oldbufptr < 200 &&
4979 oldbufptr != bufptr) {
4980 while (isSPACE(*oldbufptr))
4982 sprintf(tname,"near \"%.*s\"",bufptr - oldbufptr, oldbufptr);
4984 else if (yychar > 255)
4985 tname = "next token ???";
4986 else if (!yychar || (yychar == ';' && !rsfp))
4987 (void)strcpy(tname,"at EOF");
4988 else if ((yychar & 127) == 127) {
4989 if (lex_state == LEX_NORMAL ||
4990 (lex_state == LEX_KNOWNEXT && lex_defer == LEX_NORMAL))
4991 (void)strcpy(tname,"at end of line");
4993 (void)strcpy(tname,"within pattern");
4995 (void)strcpy(tname,"within string");
4997 else if (yychar < 32)
4998 (void)sprintf(tname,"next char ^%c",yychar+64);
5000 (void)sprintf(tname,"next char %c",yychar);
5001 (void)sprintf(buf, "%s at %s line %d, %s\n",
5002 s,SvPVX(GvSV(curcop->cop_filegv)),curcop->cop_line,tname);
5003 if (curcop->cop_line == multi_end && multi_start < multi_end) {
5004 sprintf(buf+strlen(buf),
5005 " (Might be a runaway multi-line %c%c string starting on line %ld)\n",
5006 multi_open,multi_close,(long)multi_start);
5012 sv_catpv(GvSV(errgv),buf);
5015 if (++error_count >= 10)
5016 croak("%s has too many errors.\n",
5017 SvPVX(GvSV(curcop->cop_filegv)));