3 * Copyright (c) 1991-1994, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "It all comes from here, the stench and the peril." --Frodo
17 static void check_uni _((void));
18 static void force_next _((I32 type));
19 static char *force_version _((char *start));
20 static char *force_word _((char *start, int token, int check_keyword, int allow_pack, int allow_tick));
21 static SV *q _((SV *sv));
22 static char *scan_const _((char *start));
23 static char *scan_formline _((char *s));
24 static char *scan_heredoc _((char *s));
25 static char *scan_ident _((char *s, char *send, char *dest, I32 ck_uni));
26 static char *scan_inputsymbol _((char *start));
27 static char *scan_pat _((char *start));
28 static char *scan_str _((char *start));
29 static char *scan_subst _((char *start));
30 static char *scan_trans _((char *start));
31 static char *scan_word _((char *s, char *dest, int allow_package, STRLEN *slp));
32 static char *skipspace _((char *s));
33 static void checkcomma _((char *s, char *name, char *what));
34 static void force_ident _((char *s, int kind));
35 static void incline _((char *s));
36 static int intuit_method _((char *s, GV *gv));
37 static int intuit_more _((char *s));
38 static I32 lop _((I32 f, expectation x, char *s));
39 static void missingterm _((char *s));
40 static void no_op _((char *what, char *s));
41 static void set_csh _((void));
42 static I32 sublex_done _((void));
43 static I32 sublex_start _((void));
45 static int uni _((I32 f, char *s));
47 static char * filter_gets _((SV *sv, PerlIO *fp, STRLEN append));
48 static void restore_rsfp _((void *f));
50 static char *linestart; /* beg. of most recently read line */
52 /* The following are arranged oddly so that the guard on the switch statement
53 * can get by with a single comparison (if the compiler is smart enough).
57 #define LEX_INTERPNORMAL 8
58 #define LEX_INTERPCASEMOD 7
59 #define LEX_INTERPSTART 6
60 #define LEX_INTERPEND 5
61 #define LEX_INTERPENDMAYBE 4
62 #define LEX_INTERPCONCAT 3
63 #define LEX_INTERPCONST 2
64 #define LEX_FORMLINE 1
65 #define LEX_KNOWNEXT 0
74 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
76 # include <unistd.h> /* Needed for execv() */
89 #define CLINE (copline = (curcop->cop_line < copline ? curcop->cop_line : copline))
91 #define TOKEN(retval) return (bufptr = s,(int)retval)
92 #define OPERATOR(retval) return (expect = XTERM,bufptr = s,(int)retval)
93 #define AOPERATOR(retval) return ao((expect = XTERM,bufptr = s,(int)retval))
94 #define PREBLOCK(retval) return (expect = XBLOCK,bufptr = s,(int)retval)
95 #define PRETERMBLOCK(retval) return (expect = XTERMBLOCK,bufptr = s,(int)retval)
96 #define PREREF(retval) return (expect = XREF,bufptr = s,(int)retval)
97 #define TERM(retval) return (CLINE, expect = XOPERATOR,bufptr = s,(int)retval)
98 #define LOOPX(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LOOPEX)
99 #define FTST(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)UNIOP)
100 #define FUN0(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC0)
101 #define FUN1(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC1)
102 #define BOop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITOROP))
103 #define BAop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)BITANDOP))
104 #define SHop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)SHIFTOP))
105 #define PWop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)POWOP))
106 #define PMop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MATCHOP)
107 #define Aop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)ADDOP))
108 #define Mop(f) return ao((yylval.ival=f,expect = XTERM,bufptr = s,(int)MULOP))
109 #define Eop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)EQOP)
110 #define Rop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)RELOP)
112 /* This bit of chicanery makes a unary function followed by
113 * a parenthesis into a function with one argument, highest precedence.
115 #define UNI(f) return(yylval.ival = f, \
118 last_uni = oldbufptr, \
120 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
122 #define UNIBRACK(f) return(yylval.ival = f, \
124 last_uni = oldbufptr, \
125 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
127 /* grandfather return to old style */
128 #define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP)
134 if (*bufptr == '=') {
136 if (toketype == ANDAND)
137 yylval.ival = OP_ANDASSIGN;
138 else if (toketype == OROR)
139 yylval.ival = OP_ORASSIGN;
151 char *oldbp = bufptr;
152 bool is_first = (oldbufptr == linestart);
154 sprintf(tmpbuf, "%s found where operator expected", what);
157 warn("\t(Missing semicolon on previous line?)\n");
158 else if (oldoldbufptr && isIDFIRST(*oldoldbufptr)) {
160 for (t = oldoldbufptr; *t && (isALNUM(*t) || *t == ':'); t++) ;
161 if (t < bufptr && isSPACE(*t))
162 warn("\t(Do you need to predeclare %.*s?)\n",
163 t - oldoldbufptr, oldoldbufptr);
167 warn("\t(Missing operator before %.*s?)\n", s - oldbp, oldbp);
178 char *nl = strrchr(s,'\n');
182 else if (multi_close < 32 || multi_close == 127) {
184 tmpbuf[1] = multi_close ^ 64;
190 *tmpbuf = multi_close;
194 q = strchr(s,'"') ? '\'' : '"';
195 croak("Can't find string terminator %c%s%c anywhere before EOF",q,s,q);
203 warn("Use of %s is deprecated", s);
209 deprecate("comma-less variable list");
220 SAVEINT(lex_brackets);
221 SAVEINT(lex_fakebrack);
222 SAVEINT(lex_casemods);
227 SAVEINT(curcop->cop_line);
231 SAVEPPTR(oldoldbufptr);
234 SAVEPPTR(lex_brackstack);
235 SAVEPPTR(lex_casestack);
236 SAVEDESTRUCTOR(restore_rsfp, rsfp);
238 lex_state = LEX_NORMAL;
243 New(899, lex_brackstack, 120, char);
244 New(899, lex_casestack, 12, char);
245 SAVEFREEPV(lex_brackstack);
246 SAVEFREEPV(lex_casestack);
248 *lex_casestack = '\0';
252 SvREFCNT_dec(lex_stuff);
255 SvREFCNT_dec(lex_repl);
260 if (SvREADONLY(linestr))
261 linestr = sv_2mortal(newSVsv(linestr));
262 s = SvPV(linestr, len);
263 if (len && s[len-1] != ';') {
264 if (!(SvFLAGS(linestr) & SVs_TEMP))
265 linestr = sv_2mortal(newSVsv(linestr));
266 sv_catpvn(linestr, "\n;", 2);
269 oldoldbufptr = oldbufptr = bufptr = linestart = SvPVX(linestr);
270 bufend = bufptr + SvCUR(linestr);
272 rs = newSVpv("\n", 1);
285 PerlIO *fp = (PerlIO*)f;
287 if (rsfp == PerlIO_stdin())
288 PerlIO_clearerr(rsfp);
289 else if (rsfp && (rsfp != fp))
306 while (*s == ' ' || *s == '\t') s++;
307 if (strnEQ(s, "line ", 5)) {
316 while (*s == ' ' || *s == '\t')
318 if (*s == '"' && (t = strchr(s+1, '"')))
322 return; /* false alarm */
323 for (t = s; !isSPACE(*t); t++) ;
328 curcop->cop_filegv = gv_fetchfile(s);
330 curcop->cop_filegv = gv_fetchfile(origfilename);
332 curcop->cop_line = atoi(n)-1;
339 if (lex_formbrack && lex_brackets <= lex_formbrack) {
340 while (s < bufend && (*s == ' ' || *s == '\t'))
346 while (s < bufend && isSPACE(*s))
348 if (s < bufend && *s == '#') {
349 while (s < bufend && *s != '\n')
354 if (s < bufend || !rsfp || lex_state != LEX_NORMAL)
356 if ((s = filter_gets(linestr, rsfp, (prevlen = SvCUR(linestr)))) == Nullch) {
357 if (minus_n || minus_p) {
358 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
359 sv_catpv(linestr,";}");
360 minus_n = minus_p = 0;
363 sv_setpv(linestr,";");
364 oldoldbufptr = oldbufptr = bufptr = s = linestart = SvPVX(linestr);
365 bufend = SvPVX(linestr) + SvCUR(linestr);
366 if (preprocess && !in_eval)
367 (void)my_pclose(rsfp);
368 else if ((PerlIO*)rsfp == PerlIO_stdin())
369 PerlIO_clearerr(rsfp);
371 (void)PerlIO_close(rsfp);
375 linestart = bufptr = s + prevlen;
376 bufend = s + SvCUR(linestr);
379 if (perldb && curstash != debstash) {
380 SV *sv = NEWSV(85,0);
382 sv_upgrade(sv, SVt_PVMG);
383 sv_setpvn(sv,bufptr,bufend-bufptr);
384 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
395 if (oldoldbufptr != last_uni)
397 while (isSPACE(*last_uni))
399 for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ;
400 if ((t = strchr(s, '(')) && t < bufptr)
404 warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni);
411 #define UNI(f) return uni(f,s)
421 last_uni = oldbufptr;
432 #endif /* CRIPPLED_CC */
434 #define LOP(f,x) return lop(f,x,s)
446 last_lop = oldbufptr;
463 nexttype[nexttoke] = type;
465 if (lex_state != LEX_KNOWNEXT) {
466 lex_defer = lex_state;
468 lex_state = LEX_KNOWNEXT;
473 force_word(start,token,check_keyword,allow_pack,allow_tick)
474 register char *start;
483 start = skipspace(start);
486 (allow_pack && *s == ':') ||
487 (allow_tick && *s == '\'') )
489 s = scan_word(s, tokenbuf, allow_pack, &len);
490 if (check_keyword && keyword(tokenbuf, len))
492 if (token == METHOD) {
502 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(tokenbuf,0));
503 nextval[nexttoke].opval->op_private |= OPpCONST_BARE;
515 OP* op = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0));
516 nextval[nexttoke].opval = op;
519 op->op_private = OPpCONST_ENTERED;
521 kind == '$' ? SVt_PV :
522 kind == '@' ? SVt_PVAV :
523 kind == '%' ? SVt_PVHV :
534 OP *version = Nullop;
538 /* default VERSION number -- GBARR */
543 for( d=s, c = 1; isDIGIT(*d) || (*d == '.' && c--); d++);
544 if((*d == ';' || isSPACE(*d)) && *(skipspace(d)) != ',') {
546 /* real VERSION number -- GBARR */
547 version = yylval.opval;
551 /* NOTE: The parser sees the package name and the VERSION swapped */
552 nextval[nexttoke].opval = version;
570 s = SvPV_force(sv, len);
574 while (s < send && *s != '\\')
581 if (s + 1 < send && (s[1] == '\\'))
582 s++; /* all that, just for this */
587 SvCUR_set(sv, d - SvPVX(sv));
595 register I32 op_type = yylval.ival;
597 if (op_type == OP_NULL) {
598 yylval.opval = lex_op;
602 if (op_type == OP_CONST || op_type == OP_READLINE) {
603 yylval.opval = (OP*)newSVOP(op_type, 0, q(lex_stuff));
610 SAVEINT(lex_brackets);
611 SAVEINT(lex_fakebrack);
612 SAVEINT(lex_casemods);
617 SAVEINT(curcop->cop_line);
620 SAVEPPTR(oldoldbufptr);
623 SAVEPPTR(lex_brackstack);
624 SAVEPPTR(lex_casestack);
629 bufend = bufptr = oldbufptr = oldoldbufptr = linestart = SvPVX(linestr);
630 bufend += SvCUR(linestr);
636 New(899, lex_brackstack, 120, char);
637 New(899, lex_casestack, 12, char);
638 SAVEFREEPV(lex_brackstack);
639 SAVEFREEPV(lex_casestack);
641 *lex_casestack = '\0';
643 lex_state = LEX_INTERPCONCAT;
644 curcop->cop_line = multi_start;
646 lex_inwhat = op_type;
647 if (op_type == OP_MATCH || op_type == OP_SUBST)
655 yylval.opval = lex_op;
668 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0));
672 if (lex_casemods) { /* oops, we've got some unbalanced parens */
673 lex_state = LEX_INTERPCASEMOD;
677 /* Is there a right-hand side to take care of? */
678 if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) {
681 bufend = bufptr = oldbufptr = oldoldbufptr = linestart = SvPVX(linestr);
682 bufend += SvCUR(linestr);
688 *lex_casestack = '\0';
690 if (SvCOMPILED(lex_repl)) {
691 lex_state = LEX_INTERPNORMAL;
695 lex_state = LEX_INTERPCONCAT;
701 bufend = SvPVX(linestr);
702 bufend += SvCUR(linestr);
712 register char *send = bufend;
713 SV *sv = NEWSV(93, send - start);
714 register char *s = start;
715 register char *d = SvPVX(sv);
716 bool dorange = FALSE;
720 ? "\\.^$@AGZdDwWsSbB+*?|()-nrtfeaxc0123456789[{]} \t\n\r\f\v#"
721 : (lex_inwhat & OP_TRANS)
725 while (s < send || dorange) {
726 if (lex_inwhat == OP_TRANS) {
731 SvGROW(sv, SvLEN(sv) + 256);
735 for (i = (U8)*d; i <= max; i++)
740 else if (*s == '-' && s+1 < send && s != start) {
745 else if (*s == '(' && lex_inpat && s[1] == '?' && s[2] == '#') {
746 while (s < send && *s != ')')
749 else if (*s == '#' && lex_inpat &&
750 ((PMOP*)lex_inpat)->op_pmflags & PMf_EXTENDED) {
751 while (s+1 < send && *s != '\n')
754 else if (*s == '@' && s[1] && (isALNUM(s[1]) || strchr(":'{$", s[1])))
756 else if (*s == '$') {
757 if (!lex_inpat) /* not a regexp, so $ must be var */
759 if (s + 1 < send && !strchr(")| \n\t", s[1]))
760 break; /* in regexp, $ might be tail anchor */
762 if (*s == '\\' && s+1 < send) {
764 if (*s && strchr(leave, *s)) {
769 if (lex_inwhat == OP_SUBST && !lex_inpat &&
770 isDIGIT(*s) && *s != '0' && !isDIGIT(s[1]))
773 warn("\\%c better written as $%c", *s, *s);
777 if (lex_inwhat != OP_TRANS && *s && strchr("lLuUEQ", *s)) {
783 if (lex_inwhat == OP_TRANS) {
791 case '0': case '1': case '2': case '3':
792 case '4': case '5': case '6': case '7':
793 *d++ = scan_oct(s, 3, &len);
797 *d++ = scan_hex(++s, 2, &len);
835 SvCUR_set(sv, d - SvPVX(sv));
838 if (SvCUR(sv) + 5 < SvLEN(sv)) {
839 SvLEN_set(sv, SvCUR(sv) + 1);
840 Renew(SvPVX(sv), SvLEN(sv), char);
843 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
849 /* This is the one truly awful dwimmer necessary to conflate C and sed. */
856 if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{'))
858 if (*s != '{' && *s != '[')
863 /* In a pattern, so maybe we have {n,m}. */
880 /* On the other hand, maybe we have a character class */
883 if (*s == ']' || *s == '^')
886 int weight = 2; /* let's weigh the evidence */
888 unsigned char un_char = 0, last_un_char;
889 char *send = strchr(s,']');
892 if (!send) /* has to be an expression */
898 else if (isDIGIT(*s)) {
900 if (isDIGIT(s[1]) && s[2] == ']')
906 for (; s < send; s++) {
907 last_un_char = un_char;
908 un_char = (unsigned char)*s;
913 weight -= seen[un_char] * 10;
915 scan_ident(s,send,tmpbuf,FALSE);
916 if ((int)strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE, SVt_PV))
921 else if (*s == '$' && s[1] &&
922 strchr("[#!%*<>()-=",s[1])) {
923 if (/*{*/ strchr("])} =",s[2]))
932 if (strchr("wds]",s[1]))
934 else if (seen['\''] || seen['"'])
936 else if (strchr("rnftbxcav",s[1]))
938 else if (isDIGIT(s[1])) {
940 while (s[1] && isDIGIT(s[1]))
950 if (strchr("aA01! ",last_un_char))
952 if (strchr("zZ79~",s[1]))
956 if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) &&
957 isALPHA(*s) && s[1] && isALPHA(s[1])) {
962 if (keyword(tmpbuf, d - tmpbuf))
965 if (un_char == last_un_char + 1)
967 weight -= seen[un_char];
972 if (weight >= 0) /* probably a character class */
980 intuit_method(start,gv)
984 char *s = start + (*start == '$');
995 s = scan_word(s, tmpbuf, TRUE, &len);
997 if (gv || last_lop_op == OP_PRINT || isUPPER(*tokenbuf))
1002 return *s == '(' ? FUNCMETH : METHOD;
1004 if (!keyword(tmpbuf, len)) {
1005 indirgv = gv_fetchpv(tmpbuf,FALSE, SVt_PVCV);
1006 if (indirgv && GvCV(indirgv))
1008 /* filehandle or package name makes it a method */
1009 if (!gv || GvIO(indirgv) || gv_stashpvn(tmpbuf, len, FALSE)) {
1011 nextval[nexttoke].opval =
1012 (OP*)newSVOP(OP_CONST, 0,
1014 nextval[nexttoke].opval->op_private =
1019 return *s == '(' ? FUNCMETH : METHOD;
1029 char *pdb = getenv("PERL5DB");
1033 return "BEGIN { require 'perl5db.pl' }";
1039 /* Encoded script support. filter_add() effectively inserts a
1040 * 'pre-processing' function into the current source input stream.
1041 * Note that the filter function only applies to the current source file
1042 * (e.g., it will not affect files 'require'd or 'use'd by this one).
1044 * The datasv parameter (which may be NULL) can be used to pass
1045 * private data to this instance of the filter. The filter function
1046 * can recover the SV using the FILTER_DATA macro and use it to
1047 * store private buffers and state information.
1049 * The supplied datasv parameter is upgraded to a PVIO type
1050 * and the IoDIRP field is used to store the function pointer.
1051 * Note that IoTOP_NAME, IoFMT_NAME, IoBOTTOM_NAME, if set for
1052 * private use must be set using malloc'd pointers.
1054 static int filter_debug = 0;
1057 filter_add(funcp, datasv)
1061 if (!funcp){ /* temporary handy debugging hack to be deleted */
1062 filter_debug = atoi((char*)datasv);
1066 rsfp_filters = newAV();
1069 if (!SvUPGRADE(datasv, SVt_PVIO))
1070 die("Can't upgrade filter_add data to SVt_PVIO");
1071 IoDIRP(datasv) = (DIR*)funcp; /* stash funcp into spare field */
1073 warn("filter_add func %lx (%s)", funcp, SvPV(datasv,na));
1074 av_unshift(rsfp_filters, 1);
1075 av_store(rsfp_filters, 0, datasv) ;
1080 /* Delete most recently added instance of this filter function. */
1086 warn("filter_del func %lx", funcp);
1087 if (!rsfp_filters || AvFILL(rsfp_filters)<0)
1089 /* if filter is on top of stack (usual case) just pop it off */
1090 if (IoDIRP(FILTER_DATA(0)) == (void*)funcp){
1091 /* sv_free(av_pop(rsfp_filters)); */
1092 sv_free(av_shift(rsfp_filters));
1096 /* we need to search for the correct entry and clear it */
1097 die("filter_del can only delete in reverse order (currently)");
1101 /* Invoke the n'th filter function for the current rsfp. */
1103 filter_read(idx, buf_sv, maxlen)
1106 int maxlen; /* 0 = read one text line */
1113 if (idx > AvFILL(rsfp_filters)){ /* Any more filters? */
1114 /* Provide a default input filter to make life easy. */
1115 /* Note that we append to the line. This is handy. */
1117 warn("filter_read %d: from rsfp\n", idx);
1121 int old_len = SvCUR(buf_sv) ;
1123 /* ensure buf_sv is large enough */
1124 SvGROW(buf_sv, old_len + maxlen) ;
1125 if ((len = PerlIO_read(rsfp, SvPVX(buf_sv) + old_len, maxlen)) <= 0){
1126 if (PerlIO_error(rsfp))
1127 return -1; /* error */
1129 return 0 ; /* end of file */
1131 SvCUR_set(buf_sv, old_len + len) ;
1134 if (sv_gets(buf_sv, rsfp, SvCUR(buf_sv)) == NULL) {
1135 if (PerlIO_error(rsfp))
1136 return -1; /* error */
1138 return 0 ; /* end of file */
1141 return SvCUR(buf_sv);
1143 /* Skip this filter slot if filter has been deleted */
1144 if ( (datasv = FILTER_DATA(idx)) == &sv_undef){
1146 warn("filter_read %d: skipped (filter deleted)\n", idx);
1147 return FILTER_READ(idx+1, buf_sv, maxlen); /* recurse */
1149 /* Get function pointer hidden within datasv */
1150 funcp = (filter_t)IoDIRP(datasv);
1152 warn("filter_read %d: via function %lx (%s)\n",
1153 idx, funcp, SvPV(datasv,na));
1154 /* Call function. The function is expected to */
1155 /* call "FILTER_READ(idx+1, buf_sv)" first. */
1156 /* Return: <0:error, =0:eof, >0:not eof */
1157 return (*funcp)(idx, buf_sv, maxlen);
1161 filter_gets(sv,fp, append)
1163 register PerlIO *fp;
1168 SvCUR_set(sv, 0); /* start with empty line */
1169 if (FILTER_READ(0, sv, 0) > 0)
1170 return ( SvPVX(sv) ) ;
1175 return (sv_gets(sv, fp, append));
1181 static char* exp_name[] =
1182 { "OPERATOR", "TERM", "REF", "STATE", "BLOCK", "TERMBLOCK" };
1185 extern int yychar; /* last token */
1195 switch (lex_state) {
1197 case LEX_NORMAL: /* Some compilers will produce faster */
1198 case LEX_INTERPNORMAL: /* code if we comment these out. */
1204 yylval = nextval[nexttoke];
1206 lex_state = lex_defer;
1207 expect = lex_expect;
1208 lex_defer = LEX_NORMAL;
1210 return(nexttype[nexttoke]);
1212 case LEX_INTERPCASEMOD:
1214 if (bufptr != bufend && *bufptr != '\\')
1215 croak("panic: INTERPCASEMOD");
1217 if (bufptr == bufend || bufptr[1] == 'E') {
1220 oldmod = lex_casestack[--lex_casemods];
1221 lex_casestack[lex_casemods] = '\0';
1222 if (bufptr != bufend && strchr("LUQ", oldmod)) {
1224 lex_state = LEX_INTERPCONCAT;
1228 if (bufptr != bufend)
1230 lex_state = LEX_INTERPCONCAT;
1235 if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3))
1236 tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */
1237 if (strchr("LU", *s) &&
1238 (strchr(lex_casestack, 'L') || strchr(lex_casestack, 'U')))
1240 lex_casestack[--lex_casemods] = '\0';
1243 if (lex_casemods > 10) {
1244 char* newlb = Renew(lex_casestack, lex_casemods + 2, char);
1245 if (newlb != lex_casestack) {
1247 lex_casestack = newlb;
1250 lex_casestack[lex_casemods++] = *s;
1251 lex_casestack[lex_casemods] = '\0';
1252 lex_state = LEX_INTERPCONCAT;
1253 nextval[nexttoke].ival = 0;
1256 nextval[nexttoke].ival = OP_LCFIRST;
1258 nextval[nexttoke].ival = OP_UCFIRST;
1260 nextval[nexttoke].ival = OP_LC;
1262 nextval[nexttoke].ival = OP_UC;
1264 nextval[nexttoke].ival = OP_QUOTEMETA;
1266 croak("panic: yylex");
1278 case LEX_INTERPSTART:
1279 if (bufptr == bufend)
1280 return sublex_done();
1282 lex_dojoin = (*bufptr == '@');
1283 lex_state = LEX_INTERPNORMAL;
1285 nextval[nexttoke].ival = 0;
1287 force_ident("\"", '$');
1288 nextval[nexttoke].ival = 0;
1290 nextval[nexttoke].ival = 0;
1292 nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */
1303 case LEX_INTERPENDMAYBE:
1304 if (intuit_more(bufptr)) {
1305 lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */
1313 lex_state = LEX_INTERPCONCAT;
1317 case LEX_INTERPCONCAT:
1320 croak("panic: INTERPCONCAT");
1322 if (bufptr == bufend)
1323 return sublex_done();
1325 if (SvIVX(linestr) == '\'') {
1326 SV *sv = newSVsv(linestr);
1329 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
1333 s = scan_const(bufptr);
1335 lex_state = LEX_INTERPCASEMOD;
1337 lex_state = LEX_INTERPSTART;
1341 nextval[nexttoke] = yylval;
1354 lex_state = LEX_NORMAL;
1355 s = scan_formline(bufptr);
1362 oldoldbufptr = oldbufptr;
1365 PerlIO_printf(PerlIO_stderr(), "### Tokener expecting %s at %s\n", exp_name[expect], s);
1371 warn("Unrecognized character \\%03o ignored", *s++ & 255);
1375 goto fake_eof; /* emulate EOF on ^D or ^Z */
1379 yyerror("Missing right bracket");
1383 goto retry; /* ignore stray nulls */
1386 if (!in_eval && !preambled) {
1388 sv_setpv(linestr,incl_perldb());
1390 sv_catpv(linestr,";");
1392 while(AvFILL(preambleav) >= 0) {
1393 SV *tmpsv = av_shift(preambleav);
1394 sv_catsv(linestr, tmpsv);
1395 sv_catpv(linestr, ";");
1398 sv_free((SV*)preambleav);
1401 if (minus_n || minus_p) {
1402 sv_catpv(linestr, "LINE: while (<>) {");
1404 sv_catpv(linestr,"chomp;");
1408 if ( splitstr[0] == '/' ||
1409 splitstr[0] == '\'' ||
1410 splitstr[0] == '"' )
1411 sprintf( tmpbuf1, "@F=split(%s);", splitstr );
1413 sprintf( tmpbuf1, "@F=split('%s');", splitstr );
1414 sv_catpv(linestr,tmpbuf1);
1417 sv_catpv(linestr,"@F=split(' ');");
1420 sv_catpv(linestr, "\n");
1421 oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
1422 bufend = SvPVX(linestr) + SvCUR(linestr);
1423 if (perldb && curstash != debstash) {
1424 SV *sv = NEWSV(85,0);
1426 sv_upgrade(sv, SVt_PVMG);
1427 sv_setsv(sv,linestr);
1428 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1433 if ((s = filter_gets(linestr, rsfp, 0)) == Nullch) {
1436 if (preprocess && !in_eval)
1437 (void)my_pclose(rsfp);
1438 else if ((PerlIO *)rsfp == PerlIO_stdin())
1439 PerlIO_clearerr(rsfp);
1441 (void)PerlIO_close(rsfp);
1444 if (!in_eval && (minus_n || minus_p)) {
1445 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
1446 sv_catpv(linestr,";}");
1447 oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
1448 bufend = SvPVX(linestr) + SvCUR(linestr);
1449 minus_n = minus_p = 0;
1452 oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
1453 sv_setpv(linestr,"");
1454 TOKEN(';'); /* not infinite loop because rsfp is NULL now */
1457 if (*s == '#' && s[1] == '!' && instr(s,"perl"))
1460 /* Incest with pod. */
1461 if (*s == '=' && strnEQ(s, "=cut", 4)) {
1462 sv_setpv(linestr, "");
1463 oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
1464 bufend = SvPVX(linestr) + SvCUR(linestr);
1469 } while (doextract);
1470 oldoldbufptr = oldbufptr = bufptr = linestart = s;
1471 if (perldb && curstash != debstash) {
1472 SV *sv = NEWSV(85,0);
1474 sv_upgrade(sv, SVt_PVMG);
1475 sv_setsv(sv,linestr);
1476 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1478 bufend = SvPVX(linestr) + SvCUR(linestr);
1479 if (curcop->cop_line == 1) {
1480 while (s < bufend && isSPACE(*s))
1482 if (*s == ':' && s[1] != ':') /* for csh execing sh scripts */
1484 if (!in_eval && *s == '#' && s[1] == '!') {
1485 d = instr(s,"perl -");
1487 d = instr(s,"perl");
1490 !instr(s,"indir") &&
1491 instr(origargv[0],"perl"))
1500 while (s < bufend && !isSPACE(*s))
1503 while (s < bufend && isSPACE(*s))
1506 Newz(899,newargv,origargc+3,char*);
1508 while (s < bufend && !isSPACE(*s))
1511 Copy(origargv+1, newargv+2, origargc+1, char*);
1517 croak("Can't exec %s", cmd);
1520 int oldpdb = perldb;
1524 while (*d && !isSPACE(*d)) d++;
1525 while (*d == ' ' || *d == '\t') d++;
1528 while (d = moreswitches(d)) ;
1529 if (perldb && !oldpdb ||
1530 ( minus_n || minus_p ) && !(oldn || oldp) )
1531 /* if we have already added "LINE: while (<>) {",
1532 we must not do it again */
1534 sv_setpv(linestr, "");
1535 oldoldbufptr = oldbufptr = s = linestart = SvPVX(linestr);
1536 bufend = SvPVX(linestr) + SvCUR(linestr);
1539 (void)gv_fetchfile(origfilename);
1546 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1548 lex_state = LEX_FORMLINE;
1552 case ' ': case '\t': case '\f': case '\r': case 013:
1557 if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) {
1559 while (s < d && *s != '\n')
1564 if (lex_formbrack && lex_brackets <= lex_formbrack) {
1566 lex_state = LEX_FORMLINE;
1576 if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) {
1581 while (s < bufend && (*s == ' ' || *s == '\t'))
1584 if (strnEQ(s,"=>",2)) {
1586 warn("Ambiguous use of -%c => resolved to \"-%c\" =>",
1588 s = force_word(bufptr,WORD,FALSE,FALSE,FALSE);
1589 OPERATOR('-'); /* unary minus */
1591 last_uni = oldbufptr;
1592 last_lop_op = OP_FTEREAD; /* good enough */
1594 case 'r': FTST(OP_FTEREAD);
1595 case 'w': FTST(OP_FTEWRITE);
1596 case 'x': FTST(OP_FTEEXEC);
1597 case 'o': FTST(OP_FTEOWNED);
1598 case 'R': FTST(OP_FTRREAD);
1599 case 'W': FTST(OP_FTRWRITE);
1600 case 'X': FTST(OP_FTREXEC);
1601 case 'O': FTST(OP_FTROWNED);
1602 case 'e': FTST(OP_FTIS);
1603 case 'z': FTST(OP_FTZERO);
1604 case 's': FTST(OP_FTSIZE);
1605 case 'f': FTST(OP_FTFILE);
1606 case 'd': FTST(OP_FTDIR);
1607 case 'l': FTST(OP_FTLINK);
1608 case 'p': FTST(OP_FTPIPE);
1609 case 'S': FTST(OP_FTSOCK);
1610 case 'u': FTST(OP_FTSUID);
1611 case 'g': FTST(OP_FTSGID);
1612 case 'k': FTST(OP_FTSVTX);
1613 case 'b': FTST(OP_FTBLK);
1614 case 'c': FTST(OP_FTCHR);
1615 case 't': FTST(OP_FTTTY);
1616 case 'T': FTST(OP_FTTEXT);
1617 case 'B': FTST(OP_FTBINARY);
1618 case 'M': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTMTIME);
1619 case 'A': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTATIME);
1620 case 'C': gv_fetchpv("\024",TRUE, SVt_PV); FTST(OP_FTCTIME);
1622 croak("Unrecognized file test: -%c", tmp);
1629 if (expect == XOPERATOR)
1634 else if (*s == '>') {
1637 if (isIDFIRST(*s)) {
1638 s = force_word(s,METHOD,FALSE,TRUE,FALSE);
1646 if (expect == XOPERATOR)
1649 if (isSPACE(*s) || !isSPACE(*bufptr))
1651 OPERATOR('-'); /* unary minus */
1658 if (expect == XOPERATOR)
1663 if (expect == XOPERATOR)
1666 if (isSPACE(*s) || !isSPACE(*bufptr))
1672 if (expect != XOPERATOR) {
1673 s = scan_ident(s, bufend, tokenbuf, TRUE);
1675 force_ident(tokenbuf, '*');
1688 if (expect != XOPERATOR) {
1689 s = scan_ident(s, bufend, tokenbuf + 1, TRUE);
1694 if (strchr(tokenbuf,':'))
1695 croak(no_myglob,tokenbuf);
1696 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1697 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
1698 force_next(PRIVATEREF);
1701 if (!strchr(tokenbuf,':')) {
1702 if (tmp = pad_findmy(tokenbuf)) {
1703 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1704 nextval[nexttoke].opval->op_targ = tmp;
1705 force_next(PRIVATEREF);
1709 force_ident(tokenbuf + 1, *tokenbuf);
1737 if (last_lop == oldoldbufptr || last_uni == oldoldbufptr)
1738 oldbufptr = oldoldbufptr; /* allow print(STDOUT 123) */
1743 if (curcop->cop_line < copline)
1744 copline = curcop->cop_line;
1755 if (lex_brackets <= 0)
1756 yyerror("Unmatched right bracket");
1759 if (lex_state == LEX_INTERPNORMAL) {
1760 if (lex_brackets == 0) {
1761 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
1762 lex_state = LEX_INTERPEND;
1769 if (lex_brackets > 100) {
1770 char* newlb = Renew(lex_brackstack, lex_brackets + 1, char);
1771 if (newlb != lex_brackstack) {
1773 lex_brackstack = newlb;
1778 if (lex_formbrack) {
1782 if (oldoldbufptr == last_lop)
1783 lex_brackstack[lex_brackets++] = XTERM;
1785 lex_brackstack[lex_brackets++] = XOPERATOR;
1786 OPERATOR(HASHBRACK);
1789 while (s < bufend && (*s == ' ' || *s == '\t'))
1791 if (s < bufend && (isALPHA(*s) || *s == '_')) {
1792 d = scan_word(s, tokenbuf, FALSE, &len);
1793 while (d < bufend && (*d == ' ' || *d == '\t'))
1797 (keyword(tokenbuf, len) ||
1798 perl_get_cv(tokenbuf, FALSE) ))
1799 warn("Ambiguous use of {%s} resolved to {\"%s\"}",
1800 tokenbuf, tokenbuf);
1801 s = force_word(s,WORD,FALSE,TRUE,FALSE);
1806 lex_brackstack[lex_brackets++] = XSTATE;
1810 lex_brackstack[lex_brackets++] = XOPERATOR;
1815 if (oldoldbufptr == last_lop)
1816 lex_brackstack[lex_brackets++] = XTERM;
1818 lex_brackstack[lex_brackets++] = XOPERATOR;
1821 OPERATOR(HASHBRACK);
1823 for (t = s; t < bufend && isALNUM(*t); t++) ;
1825 else if (*s == '\'' || *s == '"') {
1832 while (t < bufend && isSPACE(*t))
1834 if ((*t == ',' && !isLOWER(*s)) || (*t == '=' && t[1] == '>'))
1835 OPERATOR(HASHBRACK);
1839 lex_brackstack[lex_brackets-1] = XSTATE;
1845 yylval.ival = curcop->cop_line;
1846 if (isSPACE(*s) || *s == '#')
1847 copline = NOLINE; /* invalidate current command line number */
1852 if (lex_brackets <= 0)
1853 yyerror("Unmatched right bracket");
1855 expect = (expectation)lex_brackstack[--lex_brackets];
1856 if (lex_brackets < lex_formbrack)
1858 if (lex_state == LEX_INTERPNORMAL) {
1859 if (lex_brackets == 0) {
1860 if (lex_fakebrack) {
1861 lex_state = LEX_INTERPEND;
1863 return yylex(); /* ignore fake brackets */
1865 if (*s != '[' && *s != '{' && (*s != '-' || s[1] != '>'))
1866 lex_state = LEX_INTERPEND;
1869 if (lex_brackets < lex_fakebrack) {
1872 return yylex(); /* ignore fake brackets */
1882 if (expect == XOPERATOR) {
1883 if (dowarn && isALPHA(*s) && bufptr == linestart) {
1891 s = scan_ident(s-1, bufend, tokenbuf, TRUE);
1894 force_ident(tokenbuf, '&');
1898 yylval.ival = (OPpENTERSUB_AMPER<<8);
1917 if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp))
1918 warn("Reversed %c= operator",tmp);
1920 if (expect == XSTATE && isALPHA(tmp) &&
1921 (s == linestart+1 || s[-2] == '\n') )
1923 if (in_eval && !rsfp) {
1928 if (strnEQ(s,"=cut",4)) {
1945 if (lex_brackets < lex_formbrack) {
1947 for (t = s; *t == ' ' || *t == '\t'; t++) ;
1948 if (*t == '\n' || *t == '#') {
1966 if (expect != XOPERATOR) {
1967 if (s[1] != '<' && !strchr(s,'>'))
1970 s = scan_heredoc(s);
1972 s = scan_inputsymbol(s);
1973 TERM(sublex_start());
1978 SHop(OP_LEFT_SHIFT);
1992 SHop(OP_RIGHT_SHIFT);
1999 if (s[1] == '#' && (isALPHA(s[2]) || strchr("_{$:", s[2]))) {
2000 s = scan_ident(s+1, bufend, tokenbuf+1, FALSE);
2001 if (expect == XOPERATOR) {
2002 if (lex_formbrack && lex_brackets == lex_formbrack) {
2005 return ','; /* grandfather non-comma-format format */
2008 no_op("Array length",s);
2010 else if (!tokenbuf[1])
2012 if (!strchr(tokenbuf+1,':')) {
2014 if (tmp = pad_findmy(tokenbuf)) {
2015 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2016 nextval[nexttoke].opval->op_targ = tmp;
2018 force_next(PRIVATEREF);
2023 force_ident(tokenbuf+1, *tokenbuf);
2026 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
2027 if (expect == XOPERATOR) {
2028 if (lex_formbrack && lex_brackets == lex_formbrack) {
2031 return ','; /* grandfather non-comma-format format */
2037 expectation oldexpect = expect;
2039 /* This kludge not intended to be bulletproof. */
2040 if (tokenbuf[1] == '[' && !tokenbuf[2]) {
2041 yylval.opval = newSVOP(OP_CONST, 0,
2042 newSViv((IV)compiling.cop_arybase));
2043 yylval.opval->op_private = OPpCONST_ARYBASE;
2049 if (*s == '[' && oldexpect != XREF) {
2050 for (t = s+1; isSPACE(*t) || isALNUM(*t) || *t == '$'; t++) ;
2052 bufptr = skipspace(bufptr);
2053 while (t < bufend && *t != ']') t++;
2054 warn("Multidimensional syntax %.*s not supported",
2055 t-bufptr+1, bufptr);
2058 if (*s == '{' && strEQ(tokenbuf, "$SIG") &&
2059 (t = strchr(s,'}')) && (t = strchr(t,'='))) {
2062 for (t++; isSPACE(*t); t++) ;
2063 if (isIDFIRST(*t)) {
2064 t = scan_word(t, tmpbuf, TRUE, &len);
2065 if (*t != '(' && perl_get_cv(tmpbuf, FALSE))
2066 warn("You need to quote \"%s\"", tmpbuf);
2071 if (lex_state == LEX_NORMAL && isSPACE(*s)) {
2072 bool islop = (last_lop == oldoldbufptr);
2074 if (!islop || last_lop_op == OP_GREPSTART)
2076 else if (strchr("$@\"'`q", *s))
2077 expect = XTERM; /* e.g. print $fh "foo" */
2078 else if (strchr("&*<%", *s) && isIDFIRST(s[1]))
2079 expect = XTERM; /* e.g. print $fh &sub */
2080 else if (isDIGIT(*s))
2081 expect = XTERM; /* e.g. print $fh 3 */
2082 else if (*s == '.' && isDIGIT(s[1]))
2083 expect = XTERM; /* e.g. print $fh .3 */
2084 else if (strchr("/?-+", *s) && !isSPACE(s[1]))
2085 expect = XTERM; /* e.g. print $fh -1 */
2086 else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]))
2087 expect = XTERM; /* print $fh <<"EOF" */
2090 if (strchr(tokenbuf,':'))
2091 croak(no_myglob,tokenbuf);
2092 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2093 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
2094 force_next(PRIVATEREF);
2096 else if (!strchr(tokenbuf,':')) {
2097 if (oldexpect != XREF || oldoldbufptr == last_lop) {
2098 if (intuit_more(s)) {
2105 if (tmp = pad_findmy(tokenbuf)) {
2106 if (last_lop_op == OP_SORT &&
2107 !tokenbuf[2] && *tokenbuf =='$' &&
2108 tokenbuf[1] <= 'b' && tokenbuf[1] >= 'a')
2110 for (d = in_eval ? oldoldbufptr : linestart;
2111 d < bufend && *d != '\n';
2114 if (strnEQ(d,"<=>",3) || strnEQ(d,"cmp",3)) {
2115 croak("Can't use \"my %s\" in sort comparison",
2120 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2121 nextval[nexttoke].opval->op_targ = tmp;
2122 force_next(PRIVATEREF);
2125 force_ident(tokenbuf+1, *tokenbuf);
2128 force_ident(tokenbuf+1, *tokenbuf);
2132 yyerror("Final $ should be \\$ or $name");
2138 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
2139 if (expect == XOPERATOR)
2147 if (strchr(tokenbuf,':'))
2148 croak(no_myglob,tokenbuf);
2149 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2150 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
2151 force_next(PRIVATEREF);
2154 else if (!strchr(tokenbuf,':')) {
2155 if (intuit_more(s)) {
2159 if (tmp = pad_findmy(tokenbuf)) {
2160 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
2161 nextval[nexttoke].opval->op_targ = tmp;
2162 force_next(PRIVATEREF);
2167 /* Force them to make up their mind on "@foo". */
2168 if (lex_state != LEX_NORMAL && !lex_brackets &&
2169 ( !(gv = gv_fetchpv(tokenbuf+1, FALSE, SVt_PVAV)) ||
2175 sprintf(tmpbuf, "Literal @%s now requires backslash",tokenbuf+1);
2179 /* Warn about @ where they meant $. */
2181 if (*s == '[' || *s == '{') {
2183 while (*t && (isALNUM(*t) || strchr(" \t$#+-'\"", *t)))
2185 if (*t == '}' || *t == ']') {
2187 bufptr = skipspace(bufptr);
2188 warn("Scalar value %.*s better written as $%.*s",
2189 t-bufptr, bufptr, t-bufptr-1, bufptr+1);
2193 force_ident(tokenbuf+1, *tokenbuf);
2197 yyerror("Final @ should be \\@ or @name");
2202 case '/': /* may either be division or pattern */
2203 case '?': /* may either be conditional or pattern */
2204 if (expect != XOPERATOR) {
2207 TERM(sublex_start());
2215 if (lex_formbrack && lex_brackets == lex_formbrack && s[1] == '\n' &&
2216 (s == linestart || s[-1] == '\n') ) {
2221 if (expect == XOPERATOR || !isDIGIT(s[1])) {
2227 yylval.ival = OPf_SPECIAL;
2233 if (expect != XOPERATOR)
2238 case '0': case '1': case '2': case '3': case '4':
2239 case '5': case '6': case '7': case '8': case '9':
2241 if (expect == XOPERATOR)
2247 if (expect == XOPERATOR) {
2248 if (lex_formbrack && lex_brackets == lex_formbrack) {
2251 return ','; /* grandfather non-comma-format format */
2257 missingterm((char*)0);
2258 yylval.ival = OP_CONST;
2259 TERM(sublex_start());
2263 if (expect == XOPERATOR) {
2264 if (lex_formbrack && lex_brackets == lex_formbrack) {
2267 return ','; /* grandfather non-comma-format format */
2273 missingterm((char*)0);
2274 yylval.ival = OP_CONST;
2275 for (d = SvPV(lex_stuff, len); len; len--, d++) {
2276 if (*d == '$' || *d == '@' || *d == '\\') {
2277 yylval.ival = OP_STRINGIFY;
2281 TERM(sublex_start());
2285 if (expect == XOPERATOR)
2286 no_op("Backticks",s);
2288 missingterm((char*)0);
2289 yylval.ival = OP_BACKTICK;
2291 TERM(sublex_start());
2295 if (dowarn && lex_inwhat && isDIGIT(*s))
2296 warn("Can't use \\%c to mean $%c in expression", *s, *s);
2297 if (expect == XOPERATOR)
2298 no_op("Backslash",s);
2302 if (isDIGIT(s[1]) && expect == XOPERATOR) {
2338 s = scan_word(s, tokenbuf, FALSE, &len);
2340 if (*s == ':' && s[1] == ':' && strNE(tokenbuf, "CORE"))
2343 tmp = keyword(tokenbuf, len);
2345 /* Is this a word before a => operator? */
2347 while (d < bufend && (*d == ' ' || *d == '\t'))
2348 d++; /* no comments skipped here, or s### is misparsed */
2349 if (strnEQ(d,"=>",2)) {
2351 if (dowarn && (tmp || perl_get_cv(tokenbuf, FALSE)))
2352 warn("Ambiguous use of %s => resolved to \"%s\" =>",
2353 tokenbuf, tokenbuf);
2354 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2355 yylval.opval->op_private = OPpCONST_BARE;
2359 if (tmp < 0) { /* second-class keyword? */
2361 if (expect != XOPERATOR &&
2362 (*s != ':' || s[1] != ':') &&
2363 (gv = gv_fetchpv(tokenbuf, FALSE, SVt_PVCV)) &&
2375 default: /* not a keyword */
2378 char lastchar = (bufptr == oldoldbufptr ? 0 : bufptr[-1]);
2380 /* Get the rest if it looks like a package qualifier */
2382 if (*s == '\'' || *s == ':' && s[1] == ':') {
2383 s = scan_word(s, tokenbuf + len, TRUE, &len);
2385 croak("Bad name after %s::", tokenbuf);
2388 /* Do special processing at start of statement. */
2390 if (expect == XSTATE) {
2391 while (isSPACE(*s)) s++;
2392 if (*s == ':') { /* It's a label. */
2393 yylval.pval = savepv(tokenbuf);
2399 else if (expect == XOPERATOR) {
2400 if (bufptr == linestart) {
2406 no_op("Bare word",s);
2409 /* Look for a subroutine with this name in current package. */
2411 gv = gv_fetchpv(tokenbuf,FALSE, SVt_PVCV);
2413 /* Presume this is going to be a bareword of some sort. */
2416 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2417 yylval.opval->op_private = OPpCONST_BARE;
2419 /* See if it's the indirect object for a list operator. */
2422 oldoldbufptr < bufptr &&
2423 (oldoldbufptr == last_lop || oldoldbufptr == last_uni) &&
2424 /* NO SKIPSPACE BEFORE HERE! */
2426 (opargs[last_lop_op] >> OASHIFT & 7) == OA_FILEREF) )
2428 bool immediate_paren = *s == '(';
2430 /* (Now we can afford to cross potential line boundary.) */
2433 /* Two barewords in a row may indicate method call. */
2435 if ((isALPHA(*s) || *s == '$') && (tmp=intuit_method(s,gv)))
2438 /* If not a declared subroutine, it's an indirect object. */
2439 /* (But it's an indir obj regardless for sort.) */
2441 if ((last_lop_op == OP_SORT ||
2442 (!immediate_paren && (!gv || !GvCV(gv))) ) &&
2443 (last_lop_op != OP_MAPSTART && last_lop_op != OP_GREPSTART)){
2444 expect = (last_lop == oldoldbufptr) ? XTERM : XOPERATOR;
2449 /* If followed by a paren, it's certainly a subroutine. */
2455 nextval[nexttoke].opval = yylval.opval;
2462 /* If followed by var or block, call it a method (unless sub) */
2464 if ((*s == '$' || *s == '{') && (!gv || !GvCV(gv))) {
2465 last_lop = oldbufptr;
2466 last_lop_op = OP_METHOD;
2470 /* If followed by a bareword, see if it looks like indir obj. */
2472 if ((isALPHA(*s) || *s == '$') && (tmp = intuit_method(s,gv)))
2475 /* Not a method, so call it a subroutine (if defined) */
2477 if (gv && GvCV(gv)) {
2480 nextval[nexttoke].opval = yylval.opval;
2486 if (lastchar == '-')
2487 warn("Ambiguous use of -%s resolved as -&%s()",
2488 tokenbuf, tokenbuf);
2489 last_lop = oldbufptr;
2490 last_lop_op = OP_ENTERSUB;
2491 /* Check for a constant sub */
2493 SV *sv = cv_const_sv(cv);
2495 SvREFCNT_dec(((SVOP*)yylval.opval)->op_sv);
2496 ((SVOP*)yylval.opval)->op_sv = SvREFCNT_inc(sv);
2497 yylval.opval->op_private = 0;
2502 /* Resolve to GV now. */
2503 op_free(yylval.opval);
2504 yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv));
2505 /* Is there a prototype? */
2508 char *proto = SvPV((SV*)cv, len);
2511 if (strEQ(proto, "$"))
2513 if (*proto == '&' && *s == '{') {
2514 sv_setpv(subname,"__ANON__");
2518 nextval[nexttoke].opval = yylval.opval;
2524 if (hints & HINT_STRICT_SUBS &&
2527 last_lop_op != OP_TRUNCATE && /* S/F prototype in opcode.pl */
2528 last_lop_op != OP_ACCEPT &&
2529 last_lop_op != OP_PIPE_OP &&
2530 last_lop_op != OP_SOCKPAIR)
2533 "Bareword \"%s\" not allowed while \"strict subs\" in use",
2538 /* Call it a bare word */
2542 if (lastchar != '-') {
2543 for (d = tokenbuf; *d && isLOWER(*d); d++) ;
2545 warn(warn_reserved, tokenbuf);
2548 if (lastchar && strchr("*%&", lastchar)) {
2549 warn("Operator or semicolon missing before %c%s",
2550 lastchar, tokenbuf);
2551 warn("Ambiguous use of %c resolved as operator %c",
2552 lastchar, lastchar);
2558 case KEY___FILE__: {
2559 if (tokenbuf[2] == 'L')
2560 (void)sprintf(tokenbuf,"%ld",(long)curcop->cop_line);
2562 strcpy(tokenbuf, SvPVX(GvSV(curcop->cop_filegv)));
2563 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
2572 if (rsfp && (!in_eval || tokenbuf[2] == 'D')) {
2574 char *pname = "main";
2575 if (tokenbuf[2] == 'D')
2576 pname = HvNAME(curstash ? curstash : defstash);
2577 sprintf(dname,"%s::DATA", pname);
2578 gv = gv_fetchpv(dname,TRUE, SVt_PVIO);
2581 GvIOp(gv) = newIO();
2582 IoIFP(GvIOp(gv)) = rsfp;
2583 #if defined(HAS_FCNTL) && defined(F_SETFD)
2585 int fd = PerlIO_fileno(rsfp);
2586 fcntl(fd,F_SETFD,fd >= 3);
2589 /* Mark this internal pseudo-handle as clean */
2590 IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT;
2592 IoTYPE(GvIOp(gv)) = '|';
2593 else if ((PerlIO*)rsfp == PerlIO_stdin())
2594 IoTYPE(GvIOp(gv)) = '-';
2596 IoTYPE(GvIOp(gv)) = '<';
2606 if (expect == XSTATE) {
2613 if (*s == ':' && s[1] == ':') {
2616 s = scan_word(s, tokenbuf, FALSE, &len);
2617 tmp = keyword(tokenbuf, len);
2631 LOP(OP_ACCEPT,XTERM);
2637 LOP(OP_ATAN2,XTERM);
2646 LOP(OP_BLESS,XTERM);
2655 (void)gv_fetchpv("ENV",TRUE, SVt_PVHV); /* may use HOME */
2675 LOP(OP_CRYPT,XTERM);
2679 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
2680 if (*d != '0' && isDIGIT(*d))
2681 yywarn("chmod: mode argument is missing initial 0");
2683 LOP(OP_CHMOD,XTERM);
2686 LOP(OP_CHOWN,XTERM);
2689 LOP(OP_CONNECT,XTERM);
2705 s = force_word(s,WORD,FALSE,TRUE,FALSE);
2709 hints |= HINT_BLOCK_SCOPE;
2719 gv_fetchpv("AnyDBM_File::ISA", GV_ADDMULTI, SVt_PVAV);
2720 LOP(OP_DBMOPEN,XTERM);
2726 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2733 yylval.ival = curcop->cop_line;
2747 expect = (*s == '{') ? XTERMBLOCK : XTERM;
2748 UNIBRACK(OP_ENTEREVAL);
2763 case KEY_endhostent:
2769 case KEY_endservent:
2772 case KEY_endprotoent:
2783 yylval.ival = curcop->cop_line;
2784 while (s < bufend && isSPACE(*s))
2787 croak("Missing $ on loop variable");
2791 LOP(OP_FORMLINE,XTERM);
2797 LOP(OP_FCNTL,XTERM);
2803 LOP(OP_FLOCK,XTERM);
2812 LOP(OP_GREPSTART, *s == '(' ? XTERM : XREF);
2815 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2830 case KEY_getpriority:
2831 LOP(OP_GETPRIORITY,XTERM);
2833 case KEY_getprotobyname:
2836 case KEY_getprotobynumber:
2837 LOP(OP_GPBYNUMBER,XTERM);
2839 case KEY_getprotoent:
2851 case KEY_getpeername:
2852 UNI(OP_GETPEERNAME);
2854 case KEY_gethostbyname:
2857 case KEY_gethostbyaddr:
2858 LOP(OP_GHBYADDR,XTERM);
2860 case KEY_gethostent:
2863 case KEY_getnetbyname:
2866 case KEY_getnetbyaddr:
2867 LOP(OP_GNBYADDR,XTERM);
2872 case KEY_getservbyname:
2873 LOP(OP_GSBYNAME,XTERM);
2875 case KEY_getservbyport:
2876 LOP(OP_GSBYPORT,XTERM);
2878 case KEY_getservent:
2881 case KEY_getsockname:
2882 UNI(OP_GETSOCKNAME);
2884 case KEY_getsockopt:
2885 LOP(OP_GSOCKOPT,XTERM);
2907 yylval.ival = curcop->cop_line;
2911 LOP(OP_INDEX,XTERM);
2917 LOP(OP_IOCTL,XTERM);
2929 s = force_word(s,WORD,TRUE,FALSE,FALSE);
2961 LOP(OP_LISTEN,XTERM);
2968 TERM(sublex_start());
2971 LOP(OP_MAPSTART,XREF);
2974 LOP(OP_MKDIR,XTERM);
2977 LOP(OP_MSGCTL,XTERM);
2980 LOP(OP_MSGGET,XTERM);
2983 LOP(OP_MSGRCV,XTERM);
2986 LOP(OP_MSGSND,XTERM);
2994 s = force_word(s,WORD,TRUE,FALSE,FALSE);
3001 if (expect != XSTATE)
3002 yyerror("\"no\" not allowed in expression");
3003 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3004 s = force_version(s);
3013 if (isIDFIRST(*s)) {
3015 for (d = s; isALNUM(*d); d++) ;
3017 if (strchr("|&*+-=!?:.", *t))
3018 warn("Precedence problem: open %.*s should be open(%.*s)",
3024 yylval.ival = OP_OR;
3034 LOP(OP_OPEN_DIR,XTERM);
3037 checkcomma(s,tokenbuf,"filehandle");
3041 checkcomma(s,tokenbuf,"filehandle");
3060 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3064 LOP(OP_PIPE_OP,XTERM);
3069 missingterm((char*)0);
3070 yylval.ival = OP_CONST;
3071 TERM(sublex_start());
3079 missingterm((char*)0);
3081 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff));
3085 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(" ",1));
3088 yylval.ival = OP_SPLIT;
3092 last_lop = oldbufptr;
3093 last_lop_op = OP_SPLIT;
3099 missingterm((char*)0);
3100 yylval.ival = OP_STRINGIFY;
3101 if (SvIVX(lex_stuff) == '\'')
3102 SvIVX(lex_stuff) = 0; /* qq'$foo' should intepolate */
3103 TERM(sublex_start());
3108 missingterm((char*)0);
3109 yylval.ival = OP_BACKTICK;
3111 TERM(sublex_start());
3118 s = force_word(s,WORD,TRUE,TRUE,FALSE);
3119 if (isIDFIRST(*tokenbuf))
3120 gv_stashpvn(tokenbuf, strlen(tokenbuf), TRUE);
3122 yyerror("<> should be quotes");
3129 s = force_word(s,WORD,TRUE,FALSE,FALSE);
3133 LOP(OP_RENAME,XTERM);
3142 LOP(OP_RINDEX,XTERM);
3165 LOP(OP_REVERSE,XTERM);
3176 TERM(sublex_start());
3178 TOKEN(1); /* force error */
3187 LOP(OP_SELECT,XTERM);
3193 LOP(OP_SEMCTL,XTERM);
3196 LOP(OP_SEMGET,XTERM);
3199 LOP(OP_SEMOP,XTERM);
3205 LOP(OP_SETPGRP,XTERM);
3207 case KEY_setpriority:
3208 LOP(OP_SETPRIORITY,XTERM);
3210 case KEY_sethostent:
3216 case KEY_setservent:
3219 case KEY_setprotoent:
3229 LOP(OP_SEEKDIR,XTERM);
3231 case KEY_setsockopt:
3232 LOP(OP_SSOCKOPT,XTERM);
3238 LOP(OP_SHMCTL,XTERM);
3241 LOP(OP_SHMGET,XTERM);
3244 LOP(OP_SHMREAD,XTERM);
3247 LOP(OP_SHMWRITE,XTERM);
3250 LOP(OP_SHUTDOWN,XTERM);
3259 LOP(OP_SOCKET,XTERM);
3261 case KEY_socketpair:
3262 LOP(OP_SOCKPAIR,XTERM);
3265 checkcomma(s,tokenbuf,"subroutine name");
3267 if (*s == ';' || *s == ')') /* probably a close */
3268 croak("sort is now a reserved word");
3270 s = force_word(s,WORD,TRUE,TRUE,TRUE);
3274 LOP(OP_SPLIT,XTERM);
3277 LOP(OP_SPRINTF,XTERM);
3280 LOP(OP_SPLICE,XTERM);
3296 LOP(OP_SUBSTR,XTERM);
3303 if (isIDFIRST(*s) || *s == '\'' || *s == ':') {
3306 d = scan_word(s, tmpbuf, TRUE, &len);
3307 if (strchr(tmpbuf, ':'))
3308 sv_setpv(subname, tmpbuf);
3310 sv_setsv(subname,curstname);
3311 sv_catpvn(subname,"::",2);
3312 sv_catpvn(subname,tmpbuf,len);
3314 s = force_word(s,WORD,FALSE,TRUE,TRUE);
3318 expect = XTERMBLOCK;
3319 sv_setpv(subname,"?");
3322 if (tmp == KEY_format) {
3325 lex_formbrack = lex_brackets + 1;
3329 /* Look for a prototype */
3334 SvREFCNT_dec(lex_stuff);
3336 croak("Prototype not terminated");
3339 nextval[1] = nextval[0];
3340 nexttype[1] = nexttype[0];
3341 nextval[0].opval = (OP*)newSVOP(OP_CONST, 0, lex_stuff);
3342 nexttype[0] = THING;
3343 if (nexttoke == 1) {
3344 lex_defer = lex_state;
3345 lex_expect = expect;
3346 lex_state = LEX_KNOWNEXT;
3351 if (*SvPV(subname,na) == '?') {
3352 sv_setpv(subname,"__ANON__");
3359 LOP(OP_SYSTEM,XREF);
3362 LOP(OP_SYMLINK,XTERM);
3365 LOP(OP_SYSCALL,XTERM);
3368 LOP(OP_SYSOPEN,XTERM);
3371 LOP(OP_SYSREAD,XTERM);
3374 LOP(OP_SYSWRITE,XTERM);
3378 TERM(sublex_start());
3399 LOP(OP_TRUNCATE,XTERM);
3411 yylval.ival = curcop->cop_line;
3415 yylval.ival = curcop->cop_line;
3419 LOP(OP_UNLINK,XTERM);
3425 LOP(OP_UNPACK,XTERM);
3428 LOP(OP_UTIME,XTERM);
3432 for (d = s; d < bufend && (isSPACE(*d) || *d == '('); d++) ;
3433 if (*d != '0' && isDIGIT(*d))
3434 yywarn("umask: argument is missing initial 0");
3439 LOP(OP_UNSHIFT,XTERM);
3442 if (expect != XSTATE)
3443 yyerror("\"use\" not allowed in expression");
3446 s = force_version(s);
3447 if(*s == ';' || (s = skipspace(s), *s == ';')) {
3448 nextval[nexttoke].opval = Nullop;
3453 s = force_word(s,WORD,FALSE,TRUE,FALSE);
3454 s = force_version(s);
3467 yylval.ival = curcop->cop_line;
3471 hints |= HINT_BLOCK_SCOPE;
3478 LOP(OP_WAITPID,XTERM);
3484 gv_fetchpv("\f",TRUE, SVt_PV); /* Make sure $^L is defined */
3488 if (expect == XOPERATOR)
3494 yylval.ival = OP_XOR;
3499 TERM(sublex_start());
3512 if (strEQ(d,"__LINE__")) return -KEY___LINE__;
3513 if (strEQ(d,"__FILE__")) return -KEY___FILE__;
3514 if (strEQ(d,"__DATA__")) return KEY___DATA__;
3515 if (strEQ(d,"__END__")) return KEY___END__;
3519 if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD;
3524 if (strEQ(d,"and")) return -KEY_and;
3525 if (strEQ(d,"abs")) return -KEY_abs;
3528 if (strEQ(d,"alarm")) return -KEY_alarm;
3529 if (strEQ(d,"atan2")) return -KEY_atan2;
3532 if (strEQ(d,"accept")) return -KEY_accept;
3537 if (strEQ(d,"BEGIN")) return KEY_BEGIN;
3540 if (strEQ(d,"bless")) return -KEY_bless;
3541 if (strEQ(d,"bind")) return -KEY_bind;
3542 if (strEQ(d,"binmode")) return -KEY_binmode;
3545 if (strEQ(d,"CORE")) return -KEY_CORE;
3550 if (strEQ(d,"cmp")) return -KEY_cmp;
3551 if (strEQ(d,"chr")) return -KEY_chr;
3552 if (strEQ(d,"cos")) return -KEY_cos;
3555 if (strEQ(d,"chop")) return KEY_chop;
3558 if (strEQ(d,"close")) return -KEY_close;
3559 if (strEQ(d,"chdir")) return -KEY_chdir;
3560 if (strEQ(d,"chomp")) return KEY_chomp;
3561 if (strEQ(d,"chmod")) return -KEY_chmod;
3562 if (strEQ(d,"chown")) return -KEY_chown;
3563 if (strEQ(d,"crypt")) return -KEY_crypt;
3566 if (strEQ(d,"chroot")) return -KEY_chroot;
3567 if (strEQ(d,"caller")) return -KEY_caller;
3570 if (strEQ(d,"connect")) return -KEY_connect;
3573 if (strEQ(d,"closedir")) return -KEY_closedir;
3574 if (strEQ(d,"continue")) return -KEY_continue;
3579 if (strEQ(d,"DESTROY")) return KEY_DESTROY;
3584 if (strEQ(d,"do")) return KEY_do;
3587 if (strEQ(d,"die")) return -KEY_die;
3590 if (strEQ(d,"dump")) return -KEY_dump;
3593 if (strEQ(d,"delete")) return KEY_delete;
3596 if (strEQ(d,"defined")) return KEY_defined;
3597 if (strEQ(d,"dbmopen")) return -KEY_dbmopen;
3600 if (strEQ(d,"dbmclose")) return -KEY_dbmclose;
3605 if (strEQ(d,"EQ")) { deprecate(d); return -KEY_eq;}
3606 if (strEQ(d,"END")) return KEY_END;
3611 if (strEQ(d,"eq")) return -KEY_eq;
3614 if (strEQ(d,"eof")) return -KEY_eof;
3615 if (strEQ(d,"exp")) return -KEY_exp;
3618 if (strEQ(d,"else")) return KEY_else;
3619 if (strEQ(d,"exit")) return -KEY_exit;
3620 if (strEQ(d,"eval")) return KEY_eval;
3621 if (strEQ(d,"exec")) return -KEY_exec;
3622 if (strEQ(d,"each")) return KEY_each;
3625 if (strEQ(d,"elsif")) return KEY_elsif;
3628 if (strEQ(d,"exists")) return KEY_exists;
3629 if (strEQ(d,"elseif")) warn("elseif should be elsif");
3632 if (strEQ(d,"endgrent")) return -KEY_endgrent;
3633 if (strEQ(d,"endpwent")) return -KEY_endpwent;
3636 if (strEQ(d,"endnetent")) return -KEY_endnetent;
3639 if (strEQ(d,"endhostent")) return -KEY_endhostent;
3640 if (strEQ(d,"endservent")) return -KEY_endservent;
3643 if (strEQ(d,"endprotoent")) return -KEY_endprotoent;
3650 if (strEQ(d,"for")) return KEY_for;
3653 if (strEQ(d,"fork")) return -KEY_fork;
3656 if (strEQ(d,"fcntl")) return -KEY_fcntl;
3657 if (strEQ(d,"flock")) return -KEY_flock;
3660 if (strEQ(d,"format")) return KEY_format;
3661 if (strEQ(d,"fileno")) return -KEY_fileno;
3664 if (strEQ(d,"foreach")) return KEY_foreach;
3667 if (strEQ(d,"formline")) return -KEY_formline;
3673 if (strEQ(d,"GT")) { deprecate(d); return -KEY_gt;}
3674 if (strEQ(d,"GE")) { deprecate(d); return -KEY_ge;}
3678 if (strnEQ(d,"get",3)) {
3683 if (strEQ(d,"ppid")) return -KEY_getppid;
3684 if (strEQ(d,"pgrp")) return -KEY_getpgrp;
3687 if (strEQ(d,"pwent")) return -KEY_getpwent;
3688 if (strEQ(d,"pwnam")) return -KEY_getpwnam;
3689 if (strEQ(d,"pwuid")) return -KEY_getpwuid;
3692 if (strEQ(d,"peername")) return -KEY_getpeername;
3693 if (strEQ(d,"protoent")) return -KEY_getprotoent;
3694 if (strEQ(d,"priority")) return -KEY_getpriority;
3697 if (strEQ(d,"protobyname")) return -KEY_getprotobyname;
3700 if (strEQ(d,"protobynumber"))return -KEY_getprotobynumber;
3704 else if (*d == 'h') {
3705 if (strEQ(d,"hostbyname")) return -KEY_gethostbyname;
3706 if (strEQ(d,"hostbyaddr")) return -KEY_gethostbyaddr;
3707 if (strEQ(d,"hostent")) return -KEY_gethostent;
3709 else if (*d == 'n') {
3710 if (strEQ(d,"netbyname")) return -KEY_getnetbyname;
3711 if (strEQ(d,"netbyaddr")) return -KEY_getnetbyaddr;
3712 if (strEQ(d,"netent")) return -KEY_getnetent;
3714 else if (*d == 's') {
3715 if (strEQ(d,"servbyname")) return -KEY_getservbyname;
3716 if (strEQ(d,"servbyport")) return -KEY_getservbyport;
3717 if (strEQ(d,"servent")) return -KEY_getservent;
3718 if (strEQ(d,"sockname")) return -KEY_getsockname;
3719 if (strEQ(d,"sockopt")) return -KEY_getsockopt;
3721 else if (*d == 'g') {
3722 if (strEQ(d,"grent")) return -KEY_getgrent;
3723 if (strEQ(d,"grnam")) return -KEY_getgrnam;
3724 if (strEQ(d,"grgid")) return -KEY_getgrgid;
3726 else if (*d == 'l') {
3727 if (strEQ(d,"login")) return -KEY_getlogin;
3729 else if (strEQ(d,"c")) return -KEY_getc;
3734 if (strEQ(d,"gt")) return -KEY_gt;
3735 if (strEQ(d,"ge")) return -KEY_ge;
3738 if (strEQ(d,"grep")) return KEY_grep;
3739 if (strEQ(d,"goto")) return KEY_goto;
3740 if (strEQ(d,"glob")) return -KEY_glob;
3743 if (strEQ(d,"gmtime")) return -KEY_gmtime;
3748 if (strEQ(d,"hex")) return -KEY_hex;
3753 if (strEQ(d,"if")) return KEY_if;
3756 if (strEQ(d,"int")) return -KEY_int;
3759 if (strEQ(d,"index")) return -KEY_index;
3760 if (strEQ(d,"ioctl")) return -KEY_ioctl;
3765 if (strEQ(d,"join")) return -KEY_join;
3769 if (strEQ(d,"keys")) return KEY_keys;
3770 if (strEQ(d,"kill")) return -KEY_kill;
3775 if (strEQ(d,"LT")) { deprecate(d); return -KEY_lt;}
3776 if (strEQ(d,"LE")) { deprecate(d); return -KEY_le;}
3782 if (strEQ(d,"lt")) return -KEY_lt;
3783 if (strEQ(d,"le")) return -KEY_le;
3784 if (strEQ(d,"lc")) return -KEY_lc;
3787 if (strEQ(d,"log")) return -KEY_log;
3790 if (strEQ(d,"last")) return KEY_last;
3791 if (strEQ(d,"link")) return -KEY_link;
3794 if (strEQ(d,"local")) return KEY_local;
3795 if (strEQ(d,"lstat")) return -KEY_lstat;
3798 if (strEQ(d,"length")) return -KEY_length;
3799 if (strEQ(d,"listen")) return -KEY_listen;
3802 if (strEQ(d,"lcfirst")) return -KEY_lcfirst;
3805 if (strEQ(d,"localtime")) return -KEY_localtime;
3811 case 1: return KEY_m;
3813 if (strEQ(d,"my")) return KEY_my;
3816 if (strEQ(d,"map")) return KEY_map;
3819 if (strEQ(d,"mkdir")) return -KEY_mkdir;
3822 if (strEQ(d,"msgctl")) return -KEY_msgctl;
3823 if (strEQ(d,"msgget")) return -KEY_msgget;
3824 if (strEQ(d,"msgrcv")) return -KEY_msgrcv;
3825 if (strEQ(d,"msgsnd")) return -KEY_msgsnd;
3830 if (strEQ(d,"NE")) { deprecate(d); return -KEY_ne;}
3833 if (strEQ(d,"next")) return KEY_next;
3834 if (strEQ(d,"ne")) return -KEY_ne;
3835 if (strEQ(d,"not")) return -KEY_not;
3836 if (strEQ(d,"no")) return KEY_no;
3841 if (strEQ(d,"or")) return -KEY_or;
3844 if (strEQ(d,"ord")) return -KEY_ord;
3845 if (strEQ(d,"oct")) return -KEY_oct;
3848 if (strEQ(d,"open")) return -KEY_open;
3851 if (strEQ(d,"opendir")) return -KEY_opendir;
3858 if (strEQ(d,"pop")) return KEY_pop;
3859 if (strEQ(d,"pos")) return KEY_pos;
3862 if (strEQ(d,"push")) return KEY_push;
3863 if (strEQ(d,"pack")) return -KEY_pack;
3864 if (strEQ(d,"pipe")) return -KEY_pipe;
3867 if (strEQ(d,"print")) return KEY_print;
3870 if (strEQ(d,"printf")) return KEY_printf;
3873 if (strEQ(d,"package")) return KEY_package;
3876 if (strEQ(d,"prototype")) return KEY_prototype;
3881 if (strEQ(d,"q")) return KEY_q;
3882 if (strEQ(d,"qq")) return KEY_qq;
3883 if (strEQ(d,"qw")) return KEY_qw;
3884 if (strEQ(d,"qx")) return KEY_qx;
3886 else if (strEQ(d,"quotemeta")) return -KEY_quotemeta;
3891 if (strEQ(d,"ref")) return -KEY_ref;
3894 if (strEQ(d,"read")) return -KEY_read;
3895 if (strEQ(d,"rand")) return -KEY_rand;
3896 if (strEQ(d,"recv")) return -KEY_recv;
3897 if (strEQ(d,"redo")) return KEY_redo;
3900 if (strEQ(d,"rmdir")) return -KEY_rmdir;
3901 if (strEQ(d,"reset")) return -KEY_reset;
3904 if (strEQ(d,"return")) return KEY_return;
3905 if (strEQ(d,"rename")) return -KEY_rename;
3906 if (strEQ(d,"rindex")) return -KEY_rindex;
3909 if (strEQ(d,"require")) return -KEY_require;
3910 if (strEQ(d,"reverse")) return -KEY_reverse;
3911 if (strEQ(d,"readdir")) return -KEY_readdir;
3914 if (strEQ(d,"readlink")) return -KEY_readlink;
3915 if (strEQ(d,"readline")) return -KEY_readline;
3916 if (strEQ(d,"readpipe")) return -KEY_readpipe;
3919 if (strEQ(d,"rewinddir")) return -KEY_rewinddir;
3925 case 0: return KEY_s;
3927 if (strEQ(d,"scalar")) return KEY_scalar;
3932 if (strEQ(d,"seek")) return -KEY_seek;
3933 if (strEQ(d,"send")) return -KEY_send;
3936 if (strEQ(d,"semop")) return -KEY_semop;
3939 if (strEQ(d,"select")) return -KEY_select;
3940 if (strEQ(d,"semctl")) return -KEY_semctl;
3941 if (strEQ(d,"semget")) return -KEY_semget;
3944 if (strEQ(d,"setpgrp")) return -KEY_setpgrp;
3945 if (strEQ(d,"seekdir")) return -KEY_seekdir;
3948 if (strEQ(d,"setpwent")) return -KEY_setpwent;
3949 if (strEQ(d,"setgrent")) return -KEY_setgrent;
3952 if (strEQ(d,"setnetent")) return -KEY_setnetent;
3955 if (strEQ(d,"setsockopt")) return -KEY_setsockopt;
3956 if (strEQ(d,"sethostent")) return -KEY_sethostent;
3957 if (strEQ(d,"setservent")) return -KEY_setservent;
3960 if (strEQ(d,"setpriority")) return -KEY_setpriority;
3961 if (strEQ(d,"setprotoent")) return -KEY_setprotoent;
3968 if (strEQ(d,"shift")) return KEY_shift;
3971 if (strEQ(d,"shmctl")) return -KEY_shmctl;
3972 if (strEQ(d,"shmget")) return -KEY_shmget;
3975 if (strEQ(d,"shmread")) return -KEY_shmread;
3978 if (strEQ(d,"shmwrite")) return -KEY_shmwrite;
3979 if (strEQ(d,"shutdown")) return -KEY_shutdown;
3984 if (strEQ(d,"sin")) return -KEY_sin;
3987 if (strEQ(d,"sleep")) return -KEY_sleep;
3990 if (strEQ(d,"sort")) return KEY_sort;
3991 if (strEQ(d,"socket")) return -KEY_socket;
3992 if (strEQ(d,"socketpair")) return -KEY_socketpair;
3995 if (strEQ(d,"split")) return KEY_split;
3996 if (strEQ(d,"sprintf")) return -KEY_sprintf;
3997 if (strEQ(d,"splice")) return KEY_splice;
4000 if (strEQ(d,"sqrt")) return -KEY_sqrt;
4003 if (strEQ(d,"srand")) return -KEY_srand;
4006 if (strEQ(d,"stat")) return -KEY_stat;
4007 if (strEQ(d,"study")) return KEY_study;
4010 if (strEQ(d,"substr")) return -KEY_substr;
4011 if (strEQ(d,"sub")) return KEY_sub;
4016 if (strEQ(d,"system")) return -KEY_system;
4019 if (strEQ(d,"sysopen")) return -KEY_sysopen;
4020 if (strEQ(d,"sysread")) return -KEY_sysread;
4021 if (strEQ(d,"symlink")) return -KEY_symlink;
4022 if (strEQ(d,"syscall")) return -KEY_syscall;
4025 if (strEQ(d,"syswrite")) return -KEY_syswrite;
4034 if (strEQ(d,"tr")) return KEY_tr;
4037 if (strEQ(d,"tie")) return KEY_tie;
4040 if (strEQ(d,"tell")) return -KEY_tell;
4041 if (strEQ(d,"tied")) return KEY_tied;
4042 if (strEQ(d,"time")) return -KEY_time;
4045 if (strEQ(d,"times")) return -KEY_times;
4048 if (strEQ(d,"telldir")) return -KEY_telldir;
4051 if (strEQ(d,"truncate")) return -KEY_truncate;
4058 if (strEQ(d,"uc")) return -KEY_uc;
4061 if (strEQ(d,"use")) return KEY_use;
4064 if (strEQ(d,"undef")) return KEY_undef;
4065 if (strEQ(d,"until")) return KEY_until;
4066 if (strEQ(d,"untie")) return KEY_untie;
4067 if (strEQ(d,"utime")) return -KEY_utime;
4068 if (strEQ(d,"umask")) return -KEY_umask;
4071 if (strEQ(d,"unless")) return KEY_unless;
4072 if (strEQ(d,"unpack")) return -KEY_unpack;
4073 if (strEQ(d,"unlink")) return -KEY_unlink;
4076 if (strEQ(d,"unshift")) return KEY_unshift;
4077 if (strEQ(d,"ucfirst")) return -KEY_ucfirst;
4082 if (strEQ(d,"values")) return -KEY_values;
4083 if (strEQ(d,"vec")) return -KEY_vec;
4088 if (strEQ(d,"warn")) return -KEY_warn;
4089 if (strEQ(d,"wait")) return -KEY_wait;
4092 if (strEQ(d,"while")) return KEY_while;
4093 if (strEQ(d,"write")) return -KEY_write;
4096 if (strEQ(d,"waitpid")) return -KEY_waitpid;
4099 if (strEQ(d,"wantarray")) return -KEY_wantarray;
4104 if (len == 1) return -KEY_x;
4105 if (strEQ(d,"xor")) return -KEY_xor;
4108 if (len == 1) return KEY_y;
4117 checkcomma(s,name,what)
4124 if (dowarn && *s == ' ' && s[1] == '(') { /* XXX gotta be a better way */
4126 for (w = s+2; *w && level; w++) {
4133 for (; *w && isSPACE(*w); w++) ;
4134 if (!*w || !strchr(";|})]oa!=", *w)) /* an advisory hack only... */
4135 warn("%s (...) interpreted as function",name);
4137 while (s < bufend && isSPACE(*s))
4141 while (s < bufend && isSPACE(*s))
4143 if (isIDFIRST(*s)) {
4147 while (s < bufend && isSPACE(*s))
4152 kw = keyword(w, s - w) || perl_get_cv(w, FALSE) != 0;
4156 croak("No comma allowed after %s", what);
4162 scan_word(s, dest, allow_package, slp)
4168 register char *d = dest;
4172 else if (*s == '\'' && allow_package && isIDFIRST(s[1])) {
4177 else if (*s == ':' && s[1] == ':' && allow_package && isIDFIRST(s[2])) {
4190 scan_ident(s,send,dest,ck_uni)
4192 register char *send;
4200 if (lex_brackets == 0)
4213 else if (*s == '\'' && isIDFIRST(s[1])) {
4218 else if (*s == ':' && s[1] == ':') {
4229 if (lex_state != LEX_NORMAL)
4230 lex_state = LEX_INTERPENDMAYBE;
4233 if (*s == '$' && s[1] &&
4234 (isALPHA(s[1]) || strchr("$_{", s[1]) || strnEQ(s+1,"::",2)) )
4245 if (*d == '^' && *s && (isUPPER(*s) || strchr("[\\]^_?", *s))) {
4249 if (isSPACE(s[-1])) {
4250 while (s < send && (*s == ' ' || *s == '\t')) s++;
4253 if (isALPHA(*d) || *d == '_') {
4255 while (isALNUM(*s) || *s == ':')
4258 while (s < send && (*s == ' ' || *s == '\t')) s++;
4259 if ((*s == '[' || *s == '{')) {
4260 if (dowarn && keyword(dest, d - dest)) {
4261 char *brack = *s == '[' ? "[...]" : "{...}";
4262 warn("Ambiguous use of %c{%s%s} resolved to %c%s%s",
4263 funny, dest, brack, funny, dest, brack);
4265 lex_fakebrack = lex_brackets+1;
4267 lex_brackstack[lex_brackets++] = XOPERATOR;
4273 if (lex_state == LEX_INTERPNORMAL && !lex_brackets)
4274 lex_state = LEX_INTERPEND;
4278 (keyword(dest, d - dest) || perl_get_cv(dest, FALSE)))
4279 warn("Ambiguous use of %c{%s} resolved to %c%s",
4280 funny, dest, funny, dest);
4283 s = bracket; /* let the parser handle it */
4287 else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s))
4288 lex_state = LEX_INTERPEND;
4292 void pmflag(pmfl,ch)
4301 *pmfl |= PMf_GLOBAL;
4305 *pmfl |= PMf_MULTILINE;
4307 *pmfl |= PMf_SINGLELINE;
4309 *pmfl |= PMf_EXTENDED;
4319 s = scan_str(start);
4322 SvREFCNT_dec(lex_stuff);
4324 croak("Search pattern not terminated");
4326 pm = (PMOP*)newPMOP(OP_MATCH, 0);
4327 if (multi_open == '?')
4328 pm->op_pmflags |= PMf_ONCE;
4330 while (*s && strchr("iogmsx", *s))
4331 pmflag(&pm->op_pmflags,*s++);
4333 pm->op_pmpermflags = pm->op_pmflags;
4335 yylval.ival = OP_MATCH;
4347 yylval.ival = OP_NULL;
4349 s = scan_str(start);
4353 SvREFCNT_dec(lex_stuff);
4355 croak("Substitution pattern not terminated");
4358 if (s[-1] == multi_open)
4364 SvREFCNT_dec(lex_stuff);
4367 SvREFCNT_dec(lex_repl);
4369 croak("Substitution replacement not terminated");
4372 pm = (PMOP*)newPMOP(OP_SUBST, 0);
4373 while (*s && strchr("iogmsex", *s)) {
4379 pmflag(&pm->op_pmflags,*s++);
4384 pm->op_pmflags |= PMf_EVAL;
4385 repl = newSVpv("",0);
4387 sv_catpv(repl, es ? "eval " : "do ");
4388 sv_catpvn(repl, "{ ", 2);
4389 sv_catsv(repl, lex_repl);
4390 sv_catpvn(repl, " };", 2);
4391 SvCOMPILED_on(repl);
4392 SvREFCNT_dec(lex_repl);
4396 pm->op_pmpermflags = pm->op_pmflags;
4398 yylval.ival = OP_SUBST;
4406 if (!pm->op_pmshort && pm->op_pmregexp->regstart &&
4407 (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH)
4409 if (!(pm->op_pmregexp->reganch & ROPT_ANCH))
4410 pm->op_pmflags |= PMf_SCANFIRST;
4411 else if (pm->op_pmflags & PMf_FOLD)
4413 pm->op_pmshort = SvREFCNT_inc(pm->op_pmregexp->regstart);
4414 pm->op_pmslen = SvCUR(pm->op_pmshort);
4416 else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */
4417 if (pm->op_pmshort &&
4418 sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust))
4420 if (pm->op_pmflags & PMf_SCANFIRST) {
4421 SvREFCNT_dec(pm->op_pmshort);
4422 pm->op_pmshort = Nullsv;
4425 SvREFCNT_dec(pm->op_pmregexp->regmust);
4426 pm->op_pmregexp->regmust = Nullsv;
4430 if (!pm->op_pmshort || /* promote the better string */
4431 ((pm->op_pmflags & PMf_SCANFIRST) &&
4432 (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)) )){
4433 SvREFCNT_dec(pm->op_pmshort); /* ok if null */
4434 pm->op_pmshort = pm->op_pmregexp->regmust;
4435 pm->op_pmslen = SvCUR(pm->op_pmshort);
4436 pm->op_pmregexp->regmust = Nullsv;
4437 pm->op_pmflags |= PMf_SCANFIRST;
4453 yylval.ival = OP_NULL;
4455 s = scan_str(start);
4458 SvREFCNT_dec(lex_stuff);
4460 croak("Translation pattern not terminated");
4462 if (s[-1] == multi_open)
4468 SvREFCNT_dec(lex_stuff);
4471 SvREFCNT_dec(lex_repl);
4473 croak("Translation replacement not terminated");
4476 New(803,tbl,256,short);
4477 op = newPVOP(OP_TRANS, 0, (char*)tbl);
4479 complement = delete = squash = 0;
4480 while (*s == 'c' || *s == 'd' || *s == 's') {
4482 complement = OPpTRANS_COMPLEMENT;
4484 delete = OPpTRANS_DELETE;
4486 squash = OPpTRANS_SQUASH;
4489 op->op_private = delete|squash|complement;
4492 yylval.ival = OP_TRANS;
4501 I32 op_type = OP_SCALAR;
4512 for (peek = s; *peek == ' ' || *peek == '\t'; peek++) ;
4513 if (*peek && strchr("`'\"",*peek)) {
4516 s = cpytill(d,s,bufend,term,&len);
4527 deprecate("bare << to mean <<\"\"");
4530 } /* assuming tokenbuf won't clobber */
4535 if (rsfp || !(d=ninstr(s,bufend,d,d+1)))
4536 herewas = newSVpv(s,bufend-s);
4538 s--, herewas = newSVpv(s,d-s);
4539 s += SvCUR(herewas);
4541 tmpstr = NEWSV(87,80);
4542 sv_upgrade(tmpstr, SVt_PVIV);
4547 else if (term == '`') {
4548 op_type = OP_BACKTICK;
4549 SvIVX(tmpstr) = '\\';
4553 multi_start = curcop->cop_line;
4554 multi_open = multi_close = '<';
4558 while (s < bufend &&
4559 (*s != term || memcmp(s,tokenbuf,len) != 0) ) {
4564 curcop->cop_line = multi_start;
4565 missingterm(tokenbuf);
4567 sv_setpvn(tmpstr,d+1,s-d);
4569 sv_catpvn(herewas,s,bufend-s);
4570 sv_setsv(linestr,herewas);
4571 oldoldbufptr = oldbufptr = bufptr = s = linestart = SvPVX(linestr);
4572 bufend = SvPVX(linestr) + SvCUR(linestr);
4575 sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */
4576 while (s >= bufend) { /* multiple line string? */
4578 !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) {
4579 curcop->cop_line = multi_start;
4580 missingterm(tokenbuf);
4583 if (perldb && curstash != debstash) {
4584 SV *sv = NEWSV(88,0);
4586 sv_upgrade(sv, SVt_PVMG);
4587 sv_setsv(sv,linestr);
4588 av_store(GvAV(curcop->cop_filegv),
4589 (I32)curcop->cop_line,sv);
4591 bufend = SvPVX(linestr) + SvCUR(linestr);
4592 if (*s == term && memcmp(s,tokenbuf,len) == 0) {
4595 sv_catsv(linestr,herewas);
4596 bufend = SvPVX(linestr) + SvCUR(linestr);
4600 sv_catsv(tmpstr,linestr);
4603 multi_end = curcop->cop_line;
4605 if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) {
4606 SvLEN_set(tmpstr, SvCUR(tmpstr) + 1);
4607 Renew(SvPVX(tmpstr), SvLEN(tmpstr), char);
4609 SvREFCNT_dec(herewas);
4611 yylval.ival = op_type;
4616 scan_inputsymbol(start)
4619 register char *s = start;
4624 s = cpytill(d, s+1, bufend, '>', &len);
4628 croak("Unterminated <> operator");
4630 if (*d == '$' && d[1]) d++;
4631 while (*d && (isALNUM(*d) || *d == '\'' || *d == ':'))
4633 if (d - tokenbuf != len) {
4634 yylval.ival = OP_GLOB;
4636 s = scan_str(start);
4638 croak("Glob not terminated");
4644 (void)strcpy(d,"ARGV");
4647 if (tmp = pad_findmy(d)) {
4648 OP *op = newOP(OP_PADSV, 0);
4650 lex_op = (OP*)newUNOP(OP_READLINE, 0, newUNOP(OP_RV2GV, 0, op));
4653 GV *gv = gv_fetchpv(d+1,TRUE, SVt_PV);
4654 lex_op = (OP*)newUNOP(OP_READLINE, 0,
4655 newUNOP(OP_RV2GV, 0,
4656 newUNOP(OP_RV2SV, 0,
4657 newGVOP(OP_GV, 0, gv))));
4659 yylval.ival = OP_NULL;
4662 GV *gv = gv_fetchpv(d,TRUE, SVt_PVIO);
4663 lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv));
4664 yylval.ival = OP_NULL;
4676 register char *s = start;
4685 multi_start = curcop->cop_line;
4687 if (term && (tmps = strchr("([{< )]}> )]}>",term)))
4692 sv_upgrade(sv, SVt_PVIV);
4694 (void)SvPOK_only(sv); /* validate pointer */
4697 SvGROW(sv, SvCUR(sv) + (bufend - s) + 1);
4698 to = SvPVX(sv)+SvCUR(sv);
4699 if (multi_open == multi_close) {
4700 for (; s < bufend; s++,to++) {
4701 if (*s == '\n' && !rsfp)
4703 if (*s == '\\' && s+1 < bufend && term != '\\') {
4709 else if (*s == term)
4715 for (; s < bufend; s++,to++) {
4716 if (*s == '\n' && !rsfp)
4718 if (*s == '\\' && s+1 < bufend && term != '\\') {
4724 else if (*s == term && --brackets <= 0)
4726 else if (*s == multi_open)
4732 SvCUR_set(sv, to - SvPVX(sv));
4734 if (s < bufend) break; /* string ends on this line? */
4737 !(oldoldbufptr = oldbufptr = s = linestart = filter_gets(linestr, rsfp, 0))) {
4739 curcop->cop_line = multi_start;
4743 if (perldb && curstash != debstash) {
4744 SV *sv = NEWSV(88,0);
4746 sv_upgrade(sv, SVt_PVMG);
4747 sv_setsv(sv,linestr);
4748 av_store(GvAV(curcop->cop_filegv),
4749 (I32)curcop->cop_line, sv);
4751 bufend = SvPVX(linestr) + SvCUR(linestr);
4753 multi_end = curcop->cop_line;
4755 if (SvCUR(sv) + 5 < SvLEN(sv)) {
4756 SvLEN_set(sv, SvCUR(sv) + 1);
4757 Renew(SvPVX(sv), SvLEN(sv), char);
4770 register char *s = start;
4780 croak("panic: scan_num");
4790 else if (s[1] == '.')
4804 yyerror("Illegal octal digit");
4806 case '0': case '1': case '2': case '3': case '4':
4807 case '5': case '6': case '7':
4811 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
4812 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
4816 i += (*s++ & 7) + 9;
4823 if (tryi32 == i && tryi32 >= 0)
4824 sv_setiv(sv,tryi32);
4826 sv_setnv(sv,(double)i);
4829 case '1': case '2': case '3': case '4': case '5':
4830 case '6': case '7': case '8': case '9': case '.':
4834 while (isDIGIT(*s) || *s == '_') {
4836 if (dowarn && lastub && s - lastub != 3)
4837 warn("Misplaced _ in number");
4843 if (dowarn && lastub && s - lastub != 3)
4844 warn("Misplaced _ in number");
4845 if (*s == '.' && s[1] != '.') {
4848 while (isDIGIT(*s) || *s == '_') {
4855 if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) {
4858 *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */
4859 if (*s == '+' || *s == '-')
4866 value = atof(tokenbuf);
4867 tryi32 = I_32(value);
4868 if (!floatit && (double)tryi32 == value)
4869 sv_setiv(sv,tryi32);
4875 yylval.opval = newSVOP(OP_CONST, 0, sv);
4886 SV *stuff = newSVpv("",0);
4887 bool needargs = FALSE;
4890 if (*s == '.' || *s == '}') {
4892 for (t = s+1; *t == ' ' || *t == '\t'; t++) ;
4896 if (in_eval && !rsfp) {
4897 eol = strchr(s,'\n');
4902 eol = bufend = SvPVX(linestr) + SvCUR(linestr);
4904 for (t = s; t < eol; t++) {
4905 if (*t == '~' && t[1] == '~' && SvCUR(stuff)) {
4907 goto enough; /* ~~ must be first line in formline */
4909 if (*t == '@' || *t == '^')
4912 sv_catpvn(stuff, s, eol-s);
4916 s = filter_gets(linestr, rsfp, 0);
4917 oldoldbufptr = oldbufptr = bufptr = linestart = SvPVX(linestr);
4918 bufend = bufptr + SvCUR(linestr);
4921 yyerror("Format not terminated");
4931 lex_state = LEX_NORMAL;
4932 nextval[nexttoke].ival = 0;
4936 lex_state = LEX_FORMLINE;
4937 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff);
4939 nextval[nexttoke].ival = OP_FORMLINE;
4943 SvREFCNT_dec(stuff);
4955 cshlen = strlen(cshname);
4962 int oldsavestack_ix = savestack_ix;
4963 CV* outsidecv = compcv;
4968 assert(SvTYPE(compcv) == SVt_PVCV);
4976 SAVESPTR(comppad_name);
4978 SAVEINT(comppad_name_fill);
4979 SAVEINT(min_intro_pending);
4980 SAVEINT(max_intro_pending);
4981 SAVEINT(pad_reset_pending);
4983 compcv = (CV*)NEWSV(1104,0);
4984 sv_upgrade((SV *)compcv, SVt_PVCV);
4987 comppad_name = newAV();
4988 comppad_name_fill = 0;
4989 min_intro_pending = 0;
4990 av_push(comppad, Nullsv);
4991 curpad = AvARRAY(comppad);
4993 subline = curcop->cop_line;
4995 comppadlist = newAV();
4996 AvREAL_off(comppadlist);
4997 av_store(comppadlist, 0, (SV*)comppad_name);
4998 av_store(comppadlist, 1, (SV*)comppad);
5000 CvPADLIST(compcv) = comppadlist;
5001 CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc((SV*)outsidecv);
5003 return oldsavestack_ix;
5022 char *tname = tmpbuf;
5024 if (bufptr > oldoldbufptr && bufptr - oldoldbufptr < 200 &&
5025 oldoldbufptr != oldbufptr && oldbufptr != bufptr) {
5026 while (isSPACE(*oldoldbufptr))
5028 sprintf(tname,"near \"%.*s\"",bufptr - oldoldbufptr, oldoldbufptr);
5030 else if (bufptr > oldbufptr && bufptr - oldbufptr < 200 &&
5031 oldbufptr != bufptr) {
5032 while (isSPACE(*oldbufptr))
5034 sprintf(tname,"near \"%.*s\"",bufptr - oldbufptr, oldbufptr);
5036 else if (yychar > 255)
5037 tname = "next token ???";
5038 else if (!yychar || (yychar == ';' && !rsfp))
5039 (void)strcpy(tname,"at EOF");
5040 else if ((yychar & 127) == 127) {
5041 if (lex_state == LEX_NORMAL ||
5042 (lex_state == LEX_KNOWNEXT && lex_defer == LEX_NORMAL))
5043 (void)strcpy(tname,"at end of line");
5045 (void)strcpy(tname,"within pattern");
5047 (void)strcpy(tname,"within string");
5049 else if (yychar < 32)
5050 (void)sprintf(tname,"next char ^%c",yychar+64);
5052 (void)sprintf(tname,"next char %c",yychar);
5053 (void)sprintf(buf, "%s at %s line %d, %s\n",
5054 s,SvPVX(GvSV(curcop->cop_filegv)),curcop->cop_line,tname);
5055 if (curcop->cop_line == multi_end && multi_start < multi_end) {
5056 sprintf(buf+strlen(buf),
5057 " (Might be a runaway multi-line %c%c string starting on line %ld)\n",
5058 multi_open,multi_close,(long)multi_start);
5064 sv_catpv(GvSV(errgv),buf);
5066 PerlIO_printf(PerlIO_stderr(), "%s",buf);
5067 if (++error_count >= 10)
5068 croak("%s has too many errors.\n",
5069 SvPVX(GvSV(curcop->cop_filegv)));