1 /* $RCSfile: toke.c,v $$Revision: 4.1 $$Date: 92/08/07 18:28:39 $
3 * Copyright (c) 1991, 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.
9 * Revision 4.1 92/08/07 18:28:39 lwall
11 * Revision 4.0.1.7 92/06/11 21:16:30 lwall
12 * patch34: expect incorrectly set to indicate start of program or block
14 * Revision 4.0.1.6 92/06/08 16:03:49 lwall
15 * patch20: an EXPR may now start with a bareword
16 * patch20: print $fh EXPR can now expect term rather than operator in EXPR
17 * patch20: added ... as variant on ..
18 * patch20: new warning on spurious backslash
19 * patch20: new warning on missing $ for foreach variable
20 * patch20: "foo"x1024 now legal without space after x
21 * patch20: new warning on print accidentally used as function
22 * patch20: tr/stuff// wasn't working right
23 * patch20: 2. now eats the dot
24 * patch20: <@ARGV> now notices @ARGV
25 * patch20: tr/// now lets you say \-
27 * Revision 4.0.1.5 91/11/11 16:45:51 lwall
28 * patch19: default arg for shift was wrong after first subroutine definition
30 * Revision 4.0.1.4 91/11/05 19:02:48 lwall
31 * patch11: \x and \c were subject to double interpretation in regexps
32 * patch11: prepared for ctype implementations that don't define isascii()
33 * patch11: nested list operators could miscount parens
34 * patch11: once-thru blocks didn't display right in the debugger
35 * patch11: sort eval "whatever" didn't work
36 * patch11: underscore is now allowed within literal octal and hex numbers
38 * Revision 4.0.1.3 91/06/10 01:32:26 lwall
39 * patch10: m'$foo' now treats string as single quoted
40 * patch10: certain pattern optimizations were botched
42 * Revision 4.0.1.2 91/06/07 12:05:56 lwall
43 * patch4: new copyright notice
44 * patch4: debugger lost track of lines in eval
45 * patch4: //o and s///o now optimize themselves fully at runtime
46 * patch4: added global modifier for pattern matches
48 * Revision 4.0.1.1 91/04/12 09:18:18 lwall
49 * patch1: perl -de "print" wouldn't stop at the first statement
51 * Revision 4.0 91/03/20 01:42:14 lwall
60 static void set_csh();
62 /* The following are arranged oddly so that the guard on the switch statement
63 * can get by with a single comparison (if the compiler is smart enough).
67 #define LEX_INTERPNORMAL 7
68 #define LEX_INTERPCASEMOD 6
69 #define LEX_INTERPSTART 5
70 #define LEX_INTERPEND 4
71 #define LEX_INTERPENDMAYBE 3
72 #define LEX_INTERPCONCAT 2
73 #define LEX_INTERPCONST 1
74 #define LEX_KNOWNEXT 0
76 static U32 lex_state = LEX_NORMAL; /* next token is determined */
77 static U32 lex_defer; /* state after determined token */
78 static expectation lex_expect; /* expect after determined token */
79 static I32 lex_brackets; /* bracket count */
80 static I32 lex_fakebrack; /* outer bracket is mere delimiter */
81 static I32 lex_casemods; /* casemod count */
82 static I32 lex_dojoin; /* doing an array interpolation */
83 static I32 lex_starts; /* how many interps done on level */
84 static SV * lex_stuff; /* runtime pattern from m// or s/// */
85 static SV * lex_repl; /* runtime replacement from s/// */
86 static OP * lex_op; /* extra info to pass back on op */
87 static I32 lex_inpat; /* in pattern $) and $| are special */
88 static I32 lex_inwhat; /* what kind of quoting are we in */
89 static char * lex_brackstack; /* what kind of brackets to pop */
91 /* What we know when we're in LEX_KNOWNEXT state. */
92 static YYSTYPE nextval[5]; /* value of next token, if any */
93 static I32 nexttype[5]; /* type of next token */
94 static I32 nexttoke = 0;
100 #include <sys/file.h>
107 #include "keywords.h"
114 #define CLINE (copline = (curcop->cop_line < copline ? curcop->cop_line : copline))
117 #define PERL_META(c) ((c) | 128)
119 #define META(c) ((c) | 128)
122 #define TOKEN(retval) return (bufptr = s,(int)retval)
123 #define OPERATOR(retval) return (expect = XTERM,bufptr = s,(int)retval)
124 #define PREBLOCK(retval) return (expect = XBLOCK,bufptr = s,(int)retval)
125 #define PREREF(retval) return (expect = XREF,bufptr = s,(int)retval)
126 #define TERM(retval) return (CLINE, expect = XOPERATOR,bufptr = s,(int)retval)
127 #define LOOPX(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LOOPEX)
128 #define FTST(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)UNIOP)
129 #define FUN0(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC0)
130 #define FUN1(f) return(yylval.ival = f,expect = XOPERATOR,bufptr = s,(int)FUNC1)
131 #define BOop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)BITOROP)
132 #define BAop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)BITANDOP)
133 #define SHop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)SHIFTOP)
134 #define PWop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)POWOP)
135 #define PMop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MATCHOP)
136 #define Aop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)ADDOP)
137 #define Mop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)MULOP)
138 #define Eop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)EQOP)
139 #define Rop(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)RELOP)
141 /* This bit of chicanery makes a unary function followed by
142 * a parenthesis into a function with one argument, highest precedence.
144 #define UNI(f) return(yylval.ival = f, \
147 last_uni = oldbufptr, \
148 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
150 #define UNIBRACK(f) return(yylval.ival = f, \
152 last_uni = oldbufptr, \
153 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC1 : (int)UNIOP) )
155 /* This does similarly for list operators */
156 #define LOP(f) return(yylval.ival = f, \
160 last_lop = oldbufptr, \
162 (*s == '(' || (s = skipspace(s), *s == '(') ? (int)FUNC : (int)LSTOP) )
164 /* grandfather return to old style */
165 #define OLDLOP(f) return(yylval.ival=f,expect = XTERM,bufptr = s,(int)LSTOP)
173 char *oldbufptr = bufptr;
175 sprintf(tmpbuf, "%s found where operator expected", what);
177 if (bufptr == SvPVX(linestr))
178 warn("\t(Missing semicolon on previous line?)\n", what);
189 char *nl = strrchr(s,'\n');
193 else if (multi_close < 32 || multi_close == 127) {
195 tmpbuf[1] = multi_close ^ 64;
201 *tmpbuf = multi_close;
205 q = strchr(s,'"') ? '\'' : '"';
206 croak("Can't find string terminator %c%s%c anywhere before EOF",q,s,q);
217 SAVEINT(lex_brackets);
218 SAVEINT(lex_fakebrack);
219 SAVEINT(lex_casemods);
224 SAVEINT(curcop->cop_line);
228 SAVESPTR(oldoldbufptr);
230 SAVESPTR(lex_brackstack);
233 lex_state = LEX_NORMAL;
239 SAVESPTR(lex_brackstack);
240 New(899, lex_brackstack, 120, char);
241 SAVEFREEPV(lex_brackstack);
246 SvREFCNT_dec(lex_stuff);
249 SvREFCNT_dec(lex_repl);
254 if (SvREADONLY(linestr))
255 linestr = sv_2mortal(newSVsv(linestr));
256 s = SvPV(linestr, len);
257 if (len && s[len-1] != ';') {
258 if (!(SvFLAGS(linestr) & SVs_TEMP));
259 linestr = sv_2mortal(newSVsv(linestr));
260 sv_catpvn(linestr, "\n;", 2);
263 oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr);
264 bufend = bufptr + SvCUR(linestr);
289 while (*s == ' ' || *s == '\t') s++;
290 if (strnEQ(s, "line ", 5)) {
299 while (*s == ' ' || *s == '\t')
301 if (*s == '"' && (t = strchr(s+1, '"')))
305 return; /* false alarm */
306 for (t = s; !isSPACE(*t); t++) ;
311 curcop->cop_filegv = gv_fetchfile(s);
313 curcop->cop_filegv = gv_fetchfile(origfilename);
315 curcop->cop_line = atoi(n)-1;
322 if (in_format && lex_brackets <= 1) {
323 while (s < bufend && (*s == ' ' || *s == '\t'))
328 while (s < bufend && isSPACE(*s))
330 if (s < bufend && *s == '#') {
331 while (s < bufend && *s != '\n')
336 if (s < bufend || !rsfp)
338 if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) {
339 sv_setpv(linestr,";");
340 oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr);
343 (void)my_pclose(rsfp);
344 else if ((FILE*)rsfp == stdin)
351 oldoldbufptr = oldbufptr = bufptr = s;
352 bufend = bufptr + SvCUR(linestr);
353 if (perldb && curstash != debstash) {
354 SV *sv = NEWSV(85,0);
356 sv_upgrade(sv, SVt_PVMG);
357 sv_setsv(sv,linestr);
358 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
369 if (oldoldbufptr != last_uni)
371 while (isSPACE(*last_uni))
373 for (s = last_uni; isALNUM(*s) || *s == '-'; s++) ;
376 warn("Warning: Use of \"%s\" without parens is ambiguous", last_uni);
384 #define UNI(f) return uni(f,s)
385 #define LOP(f) return lop(f,s)
395 last_uni = oldbufptr;
414 last_lop = oldbufptr;
425 #endif /* CRIPPLED_CC */
431 nexttype[nexttoke] = type;
433 if (lex_state != LEX_KNOWNEXT) {
434 lex_defer = lex_state;
436 lex_state = LEX_KNOWNEXT;
441 force_word(start,token,check_keyword,allow_tick)
442 register char *start;
450 start = skipspace(start);
452 if (isIDFIRST(*s) || (allow_tick && (*s == '\'' || *s == ':'))) {
453 s = scan_word(s, tokenbuf, allow_tick, &len);
454 if (check_keyword && keyword(tokenbuf, len))
456 if (token == METHOD) {
466 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST,0, newSVpv(tokenbuf,0));
467 nextval[nexttoke].opval->op_private |= OPpCONST_BARE;
478 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(s,0));
498 while (s < send && *s != '\\')
506 if (s + 1 < send && (s[1] == '\\' || s[1] == delim))
507 s++; /* all that, just for this */
512 SvCUR_set(sv, d - SvPVX(sv));
520 register I32 op_type = yylval.ival;
524 if (op_type == OP_NULL) {
525 yylval.opval = lex_op;
529 if (op_type == OP_CONST || op_type == OP_READLINE) {
530 yylval.opval = (OP*)newSVOP(op_type, 0, q(lex_stuff));
537 SAVEINT(lex_brackets);
538 SAVEINT(lex_fakebrack);
539 SAVEINT(lex_casemods);
544 SAVEINT(curcop->cop_line);
547 SAVESPTR(oldoldbufptr);
549 SAVESPTR(lex_brackstack);
554 bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
555 bufend += SvCUR(linestr);
561 New(899, lex_brackstack, 120, char);
562 SAVEFREEPV(lex_brackstack);
565 lex_state = LEX_INTERPCONCAT;
566 curcop->cop_line = multi_start;
568 lex_inwhat = op_type;
569 if (op_type == OP_MATCH || op_type == OP_SUBST)
577 yylval.opval = lex_op;
590 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv("",0));
594 if (lex_casemods) { /* oops, we've got some unbalanced parens */
595 lex_state = LEX_INTERPCASEMOD;
599 /* Is there a right-hand side to take care of? */
600 if (lex_repl && (lex_inwhat == OP_SUBST || lex_inwhat == OP_TRANS)) {
603 bufend = bufptr = oldbufptr = oldoldbufptr = SvPVX(linestr);
604 bufend += SvCUR(linestr);
611 if (SvCOMPILED(lex_repl)) {
612 lex_state = LEX_INTERPNORMAL;
616 lex_state = LEX_INTERPCONCAT;
622 bufend = SvPVX(linestr);
623 bufend += SvCUR(linestr);
633 register char *send = bufend;
634 SV *sv = NEWSV(93, send - start);
635 register char *s = start;
636 register char *d = SvPVX(sv);
637 char delim = SvIVX(linestr);
638 bool dorange = FALSE;
642 ? "\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}"
643 : (lex_inwhat & OP_TRANS)
647 while (s < send || dorange) {
648 if (lex_inwhat == OP_TRANS) {
653 SvGROW(sv, SvLEN(sv) + 256);
657 for (i = (*d & 0377); i <= max; i++)
662 else if (*s == '-' && s+1 < send && s != start) {
669 else if (*s == '$') {
670 if (!lex_inpat) /* not a regexp, so $ must be var */
672 if (s + 1 < send && s[1] != ')' && s[1] != '|')
673 break; /* in regexp, $ might be tail anchor */
675 if (*s == '\\' && s+1 < send) {
681 if (*s && strchr(leave, *s)) {
686 if (lex_inwhat == OP_SUBST && !lex_inpat &&
687 isDIGIT(*s) && !isDIGIT(s[1]))
692 if (lex_inwhat != OP_TRANS && *s && strchr("lLuUE", *s)) {
698 if (lex_inwhat == OP_TRANS) {
706 case '0': case '1': case '2': case '3':
707 case '4': case '5': case '6': case '7':
708 *d++ = scan_oct(s, 3, &len);
712 *d++ = scan_hex(++s, 2, &len);
750 SvCUR_set(sv, d - SvPVX(sv));
753 if (SvCUR(sv) + 5 < SvLEN(sv)) {
754 SvLEN_set(sv, SvCUR(sv) + 1);
755 Renew(SvPVX(sv), SvLEN(sv), char);
758 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
764 /* This is the one truly awful dwimmer necessary to conflate C and sed. */
771 if (*s == '-' && s[1] == '>' && (s[2] == '[' || s[2] == '{'))
773 if (*s != '{' && *s != '[')
778 /* In a pattern, so maybe we have {n,m}. */
795 /* On the other hand, maybe we have a character class */
798 if (*s == ']' || *s == '^')
801 int weight = 2; /* let's weigh the evidence */
803 unsigned char un_char = 0, last_un_char;
804 char *send = strchr(s,']');
807 if (!send) /* has to be an expression */
813 else if (isDIGIT(*s)) {
815 if (isDIGIT(s[1]) && s[2] == ']')
821 for (; s < send; s++) {
822 last_un_char = un_char;
823 un_char = (unsigned char)*s;
828 weight -= seen[un_char] * 10;
830 scan_ident(s,send,tmpbuf,FALSE);
831 if (strlen(tmpbuf) > 1 && gv_fetchpv(tmpbuf,FALSE))
836 else if (*s == '$' && s[1] &&
837 strchr("[#!%*<>()-=",s[1])) {
838 if (/*{*/ strchr("])} =",s[2]))
847 if (strchr("wds]",s[1]))
849 else if (seen['\''] || seen['"'])
851 else if (strchr("rnftbxcav",s[1]))
853 else if (isDIGIT(s[1])) {
855 while (s[1] && isDIGIT(s[1]))
865 if (strchr("aA01! ",last_un_char))
867 if (strchr("zZ79~",s[1]))
871 if (!isALNUM(last_un_char) && !strchr("$@&",last_un_char) &&
872 isALPHA(*s) && s[1] && isALPHA(s[1])) {
877 if (keyword(tmpbuf, d - tmpbuf))
880 if (un_char == last_un_char + 1)
882 weight -= seen[un_char];
887 if (weight >= 0) /* probably a character class */
894 static char* exp_name[] = { "OPERATOR", "TERM", "REF", "STATE", "BLOCK" };
896 extern int yychar; /* last token */
908 case LEX_NORMAL: /* Some compilers will produce faster */
909 case LEX_INTERPNORMAL: /* code if we comment these out. */
915 yylval = nextval[nexttoke];
917 lex_state = lex_defer;
920 return(nexttype[nexttoke]);
922 case LEX_INTERPCASEMOD:
924 if (bufptr != bufend && *bufptr != '\\')
925 croak("panic: INTERPCASEMOD");
927 if (bufptr == bufend || bufptr[1] == 'E') {
928 if (lex_casemods <= 1) {
929 if (bufptr != bufend)
931 lex_state = LEX_INTERPSTART;
939 else if (lex_casemods) {
945 if (strnEQ(s, "L\\u", 3) || strnEQ(s, "U\\l", 3))
946 tmp = *s, *s = s[2], s[2] = tmp; /* misordered... */
948 lex_state = LEX_INTERPCONCAT;
949 nextval[nexttoke].ival = 0;
952 nextval[nexttoke].ival = OP_LCFIRST;
954 nextval[nexttoke].ival = OP_UCFIRST;
956 nextval[nexttoke].ival = OP_LC;
958 nextval[nexttoke].ival = OP_UC;
960 croak("panic: yylex");
972 case LEX_INTERPSTART:
973 if (bufptr == bufend)
974 return sublex_done();
976 lex_dojoin = (*bufptr == '@');
977 lex_state = LEX_INTERPNORMAL;
979 nextval[nexttoke].ival = 0;
982 nextval[nexttoke].ival = 0;
984 nextval[nexttoke].ival = 0;
986 nextval[nexttoke].ival = OP_JOIN; /* emulate join($", ...) */
997 case LEX_INTERPENDMAYBE:
998 if (intuit_more(bufptr)) {
999 lex_state = LEX_INTERPNORMAL; /* false alarm, more expr */
1007 lex_state = LEX_INTERPCONCAT;
1011 case LEX_INTERPCONCAT:
1014 croak("panic: INTERPCONCAT");
1016 if (bufptr == bufend)
1017 return sublex_done();
1019 if (SvIVX(linestr) == '\'') {
1020 SV *sv = newSVsv(linestr);
1023 yylval.opval = (OP*)newSVOP(OP_CONST, 0, sv);
1027 s = scan_const(bufptr);
1029 lex_state = LEX_INTERPCASEMOD;
1031 lex_state = LEX_INTERPSTART;
1035 nextval[nexttoke] = yylval;
1050 oldoldbufptr = oldbufptr;
1053 fprintf(stderr,"### Tokener expecting %s at %s\n", exp_name[expect], s);
1059 if ((*s & 127) == '}') {
1064 warn("Unrecognized character \\%03o ignored", *s++ & 255);
1070 if ((*s & 127) == '}') {
1075 warn("Unrecognized character \\%03o ignored", *s++ & 255);
1079 goto fake_eof; /* emulate EOF on ^D or ^Z */
1083 yyerror("Missing right bracket");
1087 goto retry; /* ignore stray nulls */
1092 sv_setpv(linestr,"");
1094 char *pdb = getenv("PERLDB");
1096 sv_catpv(linestr, pdb ? pdb : "BEGIN { require 'perldb.pl' }");
1098 if (minus_n || minus_p) {
1099 sv_catpv(linestr, "LINE: while (<>) {");
1101 sv_catpv(linestr,"chop;");
1103 sv_catpv(linestr,"@F=split(' ');");
1105 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1106 bufend = SvPVX(linestr) + SvCUR(linestr);
1111 #endif /* CRYPTSCRIPT */
1113 if ((s = sv_gets(linestr, rsfp, 0)) == Nullch) {
1117 (void)my_pclose(rsfp);
1118 else if ((FILE*)rsfp == stdin)
1124 if (minus_n || minus_p) {
1125 sv_setpv(linestr,minus_p ? ";}continue{print" : "");
1126 sv_catpv(linestr,";}");
1127 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1128 bufend = SvPVX(linestr) + SvCUR(linestr);
1129 minus_n = minus_p = 0;
1132 oldoldbufptr = oldbufptr = s = SvPVX(linestr);
1133 sv_setpv(linestr,"");
1134 TOKEN(';'); /* not infinite loop because rsfp is NULL now */
1136 if (doextract && *s == '#')
1139 } while (doextract);
1140 oldoldbufptr = oldbufptr = bufptr = s;
1141 if (perldb && curstash != debstash) {
1142 SV *sv = NEWSV(85,0);
1144 sv_upgrade(sv, SVt_PVMG);
1145 sv_setsv(sv,linestr);
1146 av_store(GvAV(curcop->cop_filegv),(I32)curcop->cop_line,sv);
1148 bufend = SvPVX(linestr) + SvCUR(linestr);
1149 if (curcop->cop_line == 1) {
1150 while (s < bufend && isSPACE(*s))
1152 if (*s == ':') /* for csh's that have to exec sh scripts */
1154 if (*s == '#' && s[1] == '!') {
1155 if (!in_eval && !instr(s,"perl") && instr(origargv[0],"perl")) {
1163 while (s < bufend && !isSPACE(*s))
1166 while (s < bufend && isSPACE(*s))
1169 Newz(899,newargv,origargc+3,char*);
1171 while (s < bufend && !isSPACE(*s))
1174 Copy(origargv+1, newargv+2, origargc+1, char*);
1180 croak("Can't exec %s", cmd);
1182 if (d = instr(s, "perl -")) {
1185 while (d = moreswitches(d)) ;
1189 if (in_format && lex_brackets <= 1) {
1190 s = scan_formline(s);
1196 case ' ': case '\t': case '\f': case '\r': case 013:
1201 if (lex_state != LEX_NORMAL || (in_eval && !rsfp)) {
1203 while (s < d && *s != '\n')
1208 if (in_format && lex_brackets <= 1) {
1209 s = scan_formline(s);
1221 if (s[1] && isALPHA(s[1]) && !isALNUM(s[2])) {
1223 last_uni = oldbufptr;
1225 case 'r': FTST(OP_FTEREAD);
1226 case 'w': FTST(OP_FTEWRITE);
1227 case 'x': FTST(OP_FTEEXEC);
1228 case 'o': FTST(OP_FTEOWNED);
1229 case 'R': FTST(OP_FTRREAD);
1230 case 'W': FTST(OP_FTRWRITE);
1231 case 'X': FTST(OP_FTREXEC);
1232 case 'O': FTST(OP_FTROWNED);
1233 case 'e': FTST(OP_FTIS);
1234 case 'z': FTST(OP_FTZERO);
1235 case 's': FTST(OP_FTSIZE);
1236 case 'f': FTST(OP_FTFILE);
1237 case 'd': FTST(OP_FTDIR);
1238 case 'l': FTST(OP_FTLINK);
1239 case 'p': FTST(OP_FTPIPE);
1240 case 'S': FTST(OP_FTSOCK);
1241 case 'u': FTST(OP_FTSUID);
1242 case 'g': FTST(OP_FTSGID);
1243 case 'k': FTST(OP_FTSVTX);
1244 case 'b': FTST(OP_FTBLK);
1245 case 'c': FTST(OP_FTCHR);
1246 case 't': FTST(OP_FTTTY);
1247 case 'T': FTST(OP_FTTEXT);
1248 case 'B': FTST(OP_FTBINARY);
1249 case 'M': gv_fetchpv("\024",TRUE); FTST(OP_FTMTIME);
1250 case 'A': gv_fetchpv("\024",TRUE); FTST(OP_FTATIME);
1251 case 'C': gv_fetchpv("\024",TRUE); FTST(OP_FTCTIME);
1260 if (expect == XOPERATOR)
1265 else if (*s == '>') {
1268 if (isIDFIRST(*s)) {
1269 s = force_word(s,METHOD,FALSE,TRUE);
1275 if (expect == XOPERATOR)
1278 if (isSPACE(*s) || !isSPACE(*bufptr))
1280 OPERATOR('-'); /* unary minus */
1287 if (expect == XOPERATOR)
1292 if (expect == XOPERATOR)
1295 if (isSPACE(*s) || !isSPACE(*bufptr))
1301 if (expect != XOPERATOR) {
1302 s = scan_ident(s, bufend, tokenbuf, TRUE);
1304 force_ident(tokenbuf);
1315 if (expect != XOPERATOR) {
1316 s = scan_ident(s, bufend, tokenbuf + 1, TRUE);
1321 if (strchr(tokenbuf,':'))
1322 croak("\"my\" variable %s can't be in a package",tokenbuf);
1323 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1324 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
1325 force_next(PRIVATEREF);
1328 if (!strchr(tokenbuf,':')) {
1329 if (tmp = pad_findmy(tokenbuf)) {
1330 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1331 nextval[nexttoke].opval->op_targ = tmp;
1332 force_next(PRIVATEREF);
1336 force_ident(tokenbuf + 1);
1358 if (last_lop == oldoldbufptr)
1359 oldbufptr = oldoldbufptr; /* allow print(STDOUT 123) */
1362 if (curcop->cop_line < copline)
1363 copline = curcop->cop_line;
1371 if (lex_brackets <= 0)
1372 yyerror("Unmatched right bracket");
1375 if (lex_state == LEX_INTERPNORMAL) {
1376 if (lex_brackets == 0) {
1377 if (*s != '-' || s[1] != '>')
1378 lex_state = LEX_INTERPEND;
1387 if (lex_brackets > 100) {
1388 char* newlb = (char*)realloc(lex_brackstack, lex_brackets + 1);
1389 if (newlb != lex_brackstack) {
1391 lex_brackstack = newlb;
1394 if (oldoldbufptr == last_lop)
1395 lex_brackstack[lex_brackets++] = XTERM;
1397 lex_brackstack[lex_brackets++] = XOPERATOR;
1398 if (expect == XTERM)
1399 OPERATOR(HASHBRACK);
1400 else if (expect == XBLOCK || expect == XOPERATOR) {
1401 lex_brackstack[lex_brackets-1] = XBLOCK;
1408 OPERATOR(HASHBRACK);
1411 (isSPACE(*t) || isALPHA(*t) || *t == '"' || *t == '\'');
1413 if (*t == ',' || (*t == '=' && t[1] == '>'))
1414 OPERATOR(HASHBRACK);
1418 lex_brackstack[lex_brackets-1] = XSTATE;
1422 yylval.ival = curcop->cop_line;
1423 if (isSPACE(*s) || *s == '#')
1424 copline = NOLINE; /* invalidate current command line number */
1429 if (lex_brackets <= 0)
1430 yyerror("Unmatched right bracket");
1432 expect = (expectation)lex_brackstack[--lex_brackets];
1433 if (lex_state == LEX_INTERPNORMAL) {
1434 if (lex_brackets == 0) {
1435 if (lex_fakebrack) {
1436 lex_state = LEX_INTERPEND;
1438 return yylex(); /* ignore fake brackets */
1440 if (*s != '-' || s[1] != '>')
1441 lex_state = LEX_INTERPEND;
1452 if (expect == XOPERATOR) {
1453 if (dowarn && isALPHA(*s) && bufptr == SvPVX(linestr)) {
1461 s = scan_ident(s-1, bufend, tokenbuf, TRUE);
1464 force_ident(tokenbuf);
1486 if (dowarn && tmp && isSPACE(*s) && strchr("+-*/%.^&|<",tmp))
1487 warn("Reversed %c= operator",tmp);
1489 if (in_format == 2 && (tmp == '\n' || s[1] == '\n')) {
1506 if (expect != XOPERATOR) {
1507 if (s[1] != '<' && !strchr(s,'>'))
1510 s = scan_heredoc(s);
1512 s = scan_inputsymbol(s);
1513 TERM(sublex_start());
1518 SHop(OP_LEFT_SHIFT);
1532 SHop(OP_RIGHT_SHIFT);
1539 if (s[1] == '#' && (isALPHA(s[2]) || s[2] == '_' || s[2] == '{')) {
1540 s = scan_ident(s+1, bufend, tokenbuf, FALSE);
1541 if (expect == XOPERATOR) {
1543 OPERATOR(','); /* grandfather non-comma-format format */
1545 no_op("Array length",s);
1548 force_ident(tokenbuf);
1551 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
1552 if (expect == XOPERATOR) {
1554 OPERATOR(','); /* grandfather non-comma-format format */
1560 if (dowarn && *s == '[') {
1562 for (t = s+1; isSPACE(*t) || isALNUM(*t) || *t == '$'; t++) ;
1564 bufptr = skipspace(bufptr);
1565 while (t < bufend && *t != ']') t++;
1566 warn("Multidimensional syntax %.*s not supported",
1567 t-bufptr+1, bufptr);
1571 if (lex_state == LEX_NORMAL && isSPACE(*s)) {
1572 bool islop = (last_lop == oldoldbufptr);
1576 else if (strchr("$@\"'`q", *s))
1577 expect = XTERM; /* e.g. print $fh "foo" */
1578 else if (strchr("&*<%", *s) && isIDFIRST(s[1]))
1579 expect = XTERM; /* e.g. print $fh &sub */
1580 else if (isDIGIT(*s))
1581 expect = XTERM; /* e.g. print $fh 3 */
1582 else if (*s == '.' && isDIGIT(s[1]))
1583 expect = XTERM; /* e.g. print $fh .3 */
1584 else if (strchr("/?-+", *s) && !isSPACE(s[1]))
1585 expect = XTERM; /* e.g. print $fh -1 */
1586 else if (*s == '<' && s[1] == '<' && !isSPACE(s[2]))
1587 expect = XTERM; /* print $fh <<"EOF" */
1590 if (strchr(tokenbuf,':'))
1591 croak("\"my\" variable %s can't be in a package",tokenbuf);
1592 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1593 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
1594 force_next(PRIVATEREF);
1596 else if (!strchr(tokenbuf,':')) {
1601 if (tmp = pad_findmy(tokenbuf)) {
1602 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1603 nextval[nexttoke].opval->op_targ = tmp;
1604 force_next(PRIVATEREF);
1607 force_ident(tokenbuf+1);
1610 force_ident(tokenbuf+1);
1614 yyerror("Final $ should be \\$ or $name");
1620 s = scan_ident(s, bufend, tokenbuf+1, FALSE);
1621 if (expect == XOPERATOR)
1627 if (strchr(tokenbuf,':'))
1628 croak("\"my\" variable %s can't be in a package",tokenbuf);
1629 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1630 nextval[nexttoke].opval->op_targ = pad_allocmy(tokenbuf);
1631 force_next(PRIVATEREF);
1634 else if (!strchr(tokenbuf,':')) {
1637 if (tmp = pad_findmy(tokenbuf)) {
1638 nextval[nexttoke].opval = newOP(OP_PADANY, 0);
1639 nextval[nexttoke].opval->op_targ = tmp;
1640 force_next(PRIVATEREF);
1644 if (dowarn && *s == '[') {
1646 for (t = s+1; *t && (isALNUM(*t) || strchr(" \t$#+-", *t)); t++)
1649 bufptr = skipspace(bufptr);
1650 warn("Scalar value %.*s better written as $%.*s",
1651 t-bufptr, bufptr, t-bufptr-1, bufptr+1);
1654 force_ident(tokenbuf+1);
1658 yyerror("Final @ should be \\@ or @name");
1663 case '/': /* may either be division or pattern */
1664 case '?': /* may either be conditional or pattern */
1665 if (expect != XOPERATOR) {
1668 TERM(sublex_start());
1676 if (in_format == 2) {
1681 if (expect == XOPERATOR || !isDIGIT(s[1])) {
1687 yylval.ival = OPf_SPECIAL;
1693 if (expect != XOPERATOR)
1698 case '0': case '1': case '2': case '3': case '4':
1699 case '5': case '6': case '7': case '8': case '9':
1701 if (expect == XOPERATOR)
1707 if (expect == XOPERATOR) {
1709 OPERATOR(','); /* grandfather non-comma-format format */
1715 yylval.ival = OP_CONST;
1716 TERM(sublex_start());
1720 if (expect == XOPERATOR) {
1722 OPERATOR(','); /* grandfather non-comma-format format */
1728 yylval.ival = OP_SCALAR;
1729 TERM(sublex_start());
1733 if (expect == XOPERATOR)
1734 no_op("Backticks",s);
1737 yylval.ival = OP_BACKTICK;
1739 TERM(sublex_start());
1743 if (expect == XOPERATOR)
1744 no_op("Backslash",s);
1748 if (isDIGIT(s[1]) && expect == XOPERATOR) {
1784 s = scan_word(s, tokenbuf, FALSE, &len);
1786 switch (tmp = keyword(tokenbuf, len)) {
1788 default: /* not a keyword */
1792 /* Get the rest if it looks like a package qualifier */
1794 if (*s == '\'' || *s == ':')
1795 s = scan_word(s, tokenbuf + len, TRUE, &len);
1797 /* Do special processing at start of statement. */
1799 if (expect == XSTATE) {
1800 while (isSPACE(*s)) s++;
1801 if (*s == ':') { /* It's a label. */
1802 yylval.pval = savestr(tokenbuf);
1808 else if (dowarn && expect == XOPERATOR) {
1809 if (bufptr == SvPVX(linestr)) {
1815 no_op("Bare word",s);
1818 /* Look for a subroutine with this name in current package. */
1820 gv = gv_fetchpv(tokenbuf,FALSE);
1822 /* See if it's the indirect object for a list operator. */
1824 if (oldoldbufptr && oldoldbufptr < bufptr) {
1825 if (oldoldbufptr == last_lop &&
1826 (!gv || !GvCV(gv) || last_lop_op == OP_SORT))
1830 yylval.opval = (OP*)newSVOP(OP_CONST, 0,
1831 newSVpv(tokenbuf,0));
1832 yylval.opval->op_private = OPpCONST_BARE;
1833 for (d = tokenbuf; *d && isLOWER(*d); d++) ;
1835 warn(warn_reserved, tokenbuf);
1840 /* If followed by a paren, it's certainly a subroutine. */
1846 nextval[nexttoke].opval =
1847 (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
1848 nextval[nexttoke].opval->op_private = OPpCONST_BARE;
1854 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
1855 yylval.opval->op_private = OPpCONST_BARE;
1857 /* If followed by var or block, call it a method (maybe). */
1859 if ((*s == '$' || *s == '{') && (!gv || !GvCV(gv))) {
1860 last_lop = oldbufptr;
1861 last_lop_op = OP_METHOD;
1865 /* If followed by a bareword, see if it looks like indir obj. */
1871 s = scan_word(s, tmpbuf, TRUE, &len);
1872 if (!keyword(tmpbuf, len)) {
1873 SV* tmpsv = newSVpv(tmpbuf,0);
1874 indirgv = gv_fetchpv(tmpbuf,FALSE);
1875 if (!indirgv || !GvCV(indirgv)) {
1876 if (!gv || !GvCV(gv) || fetch_stash(tmpsv, FALSE)) {
1877 nextval[nexttoke].opval =
1878 (OP*)newSVOP(OP_CONST, 0, tmpsv);
1879 nextval[nexttoke].opval->op_private =
1886 SvREFCNT_dec(tmpsv);
1891 /* Not a method, so call it a subroutine (if defined) */
1893 if (gv && GvCV(gv)) {
1894 nextval[nexttoke].opval = yylval.opval;
1900 last_lop = oldbufptr;
1901 last_lop_op = OP_ENTERSUBR;
1907 /* Call it a bare word */
1909 for (d = tokenbuf; *d && isLOWER(*d); d++) ;
1911 warn(warn_reserved, tokenbuf);
1916 case KEY___FILE__: {
1917 if (tokenbuf[2] == 'L')
1918 (void)sprintf(tokenbuf,"%ld",(long)curcop->cop_line);
1920 strcpy(tokenbuf, SvPVX(GvSV(curcop->cop_filegv)));
1921 yylval.opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(tokenbuf,0));
1930 if (!in_eval && (gv = gv_fetchpv("DATA",FALSE))) {
1934 IoIFP(GvIO(gv)) = rsfp;
1935 #if defined(HAS_FCNTL) && defined(FFt_SETFD)
1937 fcntl(fd,FFt_SETFD,fd >= 3);
1940 IoTYPE(GvIO(gv)) = '|';
1941 else if ((FILE*)rsfp == stdin)
1942 IoTYPE(GvIO(gv)) = '-';
1944 IoTYPE(GvIO(gv)) = '<';
1955 if (expect == XSTATE && (minus_p || minus_n || *s == '{' )) {
1992 (void)gv_fetchpv("ENV",TRUE); /* may use HOME */
2016 if (dowarn && *s != '0' && isDIGIT(*s))
2017 yywarn("chmod: mode argument is missing initial 0");
2040 s = force_word(s,WORD,FALSE,TRUE);
2059 s = force_word(s,WORD,TRUE,FALSE);
2066 yylval.ival = curcop->cop_line;
2077 expect = (*s == '{') ? XBLOCK : XTERM;
2078 UNIBRACK(OP_ENTEREVAL);
2093 case KEY_endhostent:
2099 case KEY_endservent:
2102 case KEY_endprotoent:
2113 yylval.ival = curcop->cop_line;
2114 while (s < bufend && isSPACE(*s))
2117 croak("Missing $ on loop variable");
2145 s = force_word(s,WORD,TRUE,FALSE);
2160 case KEY_getpriority:
2161 LOP(OP_GETPRIORITY);
2163 case KEY_getprotobyname:
2166 case KEY_getprotobynumber:
2169 case KEY_getprotoent:
2181 case KEY_getpeername:
2182 UNI(OP_GETPEERNAME);
2184 case KEY_gethostbyname:
2187 case KEY_gethostbyaddr:
2190 case KEY_gethostent:
2193 case KEY_getnetbyname:
2196 case KEY_getnetbyaddr:
2202 case KEY_getservbyname:
2205 case KEY_getservbyport:
2208 case KEY_getservent:
2211 case KEY_getsockname:
2212 UNI(OP_GETSOCKNAME);
2214 case KEY_getsockopt:
2236 yylval.ival = curcop->cop_line;
2258 s = force_word(s,WORD,TRUE,FALSE);
2297 TERM(sublex_start());
2320 s = force_word(s,WORD,TRUE,FALSE);
2328 if (isIDFIRST(*s)) {
2330 for (d = s; isALNUM(*d); d++) ;
2332 if (strchr("|&*+-=!?:.", *t))
2333 warn("Precedence problem: open %.*s should be open(%.*s)",
2351 checkcomma(s,tokenbuf,"filehandle");
2355 checkcomma(s,tokenbuf,"filehandle");
2368 s = force_word(s,WORD,FALSE,TRUE);
2378 yylval.ival = OP_CONST;
2379 TERM(sublex_start());
2386 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, q(lex_stuff));
2390 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, newSVpv(" ",1));
2399 yylval.ival = OP_SCALAR;
2400 if (SvIVX(lex_stuff) == '\'')
2401 SvIVX(lex_stuff) = 0; /* qq'$foo' should intepolate */
2402 TERM(sublex_start());
2408 yylval.ival = OP_BACKTICK;
2410 TERM(sublex_start());
2416 s = force_word(s,WORD,TRUE,FALSE);
2423 s = force_word(s,WORD,TRUE,FALSE);
2470 TERM(sublex_start());
2472 TOKEN(1); /* force error */
2498 case KEY_setpriority:
2499 LOP(OP_SETPRIORITY);
2501 case KEY_sethostent:
2507 case KEY_setservent:
2510 case KEY_setprotoent:
2522 case KEY_setsockopt:
2552 case KEY_socketpair:
2556 checkcomma(s,tokenbuf,"subroutine name");
2558 if (*s == ';' || *s == ')') /* probably a close */
2559 croak("sort is now a reserved word");
2561 s = force_word(s,WORD,TRUE,TRUE);
2592 yylval.ival = start_subparse();
2594 if (tmp == KEY_format)
2598 if (isIDFIRST(*s) || *s == '\'' || *s == ':') {
2600 d = scan_word(s, tmpbuf, TRUE, &len);
2601 if (strchr(tmpbuf, ':'))
2602 sv_setpv(subname, tmpbuf);
2604 sv_setsv(subname,curstname);
2605 sv_catpvn(subname,"::",2);
2606 sv_catpvn(subname,tmpbuf,len);
2608 s = force_word(s,WORD,FALSE,TRUE);
2611 sv_setpv(subname,"?");
2613 if (tmp != KEY_format)
2638 TERM(sublex_start());
2668 yylval.ival = curcop->cop_line;
2672 yylval.ival = curcop->cop_line;
2689 if (dowarn && *s != '0' && isDIGIT(*s))
2690 warn("umask: argument is missing initial 0");
2704 yylval.ival = curcop->cop_line;
2723 if (expect == XOPERATOR)
2730 TERM(sublex_start());
2743 if (strEQ(d,"__LINE__")) return KEY___LINE__;
2744 if (strEQ(d,"__FILE__")) return KEY___FILE__;
2745 if (strEQ(d,"__END__")) return KEY___END__;
2749 if (strEQ(d,"AUTOLOAD")) return KEY_AUTOLOAD;
2754 if (strEQ(d,"and")) return KEY_and;
2755 if (strEQ(d,"abs")) return KEY_abs;
2758 if (strEQ(d,"alarm")) return KEY_alarm;
2759 if (strEQ(d,"atan2")) return KEY_atan2;
2762 if (strEQ(d,"accept")) return KEY_accept;
2767 if (strEQ(d,"BEGIN")) return KEY_BEGIN;
2770 if (strEQ(d,"bless")) return KEY_bless;
2771 if (strEQ(d,"bind")) return KEY_bind;
2772 if (strEQ(d,"binmode")) return KEY_binmode;
2777 if (strEQ(d,"cmp")) return KEY_cmp;
2778 if (strEQ(d,"chr")) return KEY_chr;
2779 if (strEQ(d,"cos")) return KEY_cos;
2782 if (strEQ(d,"chop")) return KEY_chop;
2785 if (strEQ(d,"close")) return KEY_close;
2786 if (strEQ(d,"chdir")) return KEY_chdir;
2787 if (strEQ(d,"chmod")) return KEY_chmod;
2788 if (strEQ(d,"chown")) return KEY_chown;
2789 if (strEQ(d,"crypt")) return KEY_crypt;
2792 if (strEQ(d,"chroot")) return KEY_chroot;
2793 if (strEQ(d,"caller")) return KEY_caller;
2796 if (strEQ(d,"connect")) return KEY_connect;
2799 if (strEQ(d,"closedir")) return KEY_closedir;
2800 if (strEQ(d,"continue")) return KEY_continue;
2805 if (strEQ(d,"DESTROY")) return KEY_DESTROY;
2810 if (strEQ(d,"do")) return KEY_do;
2813 if (strEQ(d,"die")) return KEY_die;
2816 if (strEQ(d,"dump")) return KEY_dump;
2819 if (strEQ(d,"delete")) return KEY_delete;
2822 if (strEQ(d,"defined")) return KEY_defined;
2823 if (strEQ(d,"dbmopen")) return KEY_dbmopen;
2826 if (strEQ(d,"dbmclose")) return KEY_dbmclose;
2831 if (strEQ(d,"EQ")) return KEY_eq;
2832 if (strEQ(d,"END")) return KEY_END;
2837 if (strEQ(d,"eq")) return KEY_eq;
2840 if (strEQ(d,"eof")) return KEY_eof;
2841 if (strEQ(d,"exp")) return KEY_exp;
2844 if (strEQ(d,"else")) return KEY_else;
2845 if (strEQ(d,"exit")) return KEY_exit;
2846 if (strEQ(d,"eval")) return KEY_eval;
2847 if (strEQ(d,"exec")) return KEY_exec;
2848 if (strEQ(d,"each")) return KEY_each;
2851 if (strEQ(d,"elsif")) return KEY_elsif;
2854 if (strEQ(d,"endgrent")) return KEY_endgrent;
2855 if (strEQ(d,"endpwent")) return KEY_endpwent;
2858 if (strEQ(d,"endnetent")) return KEY_endnetent;
2861 if (strEQ(d,"endhostent")) return KEY_endhostent;
2862 if (strEQ(d,"endservent")) return KEY_endservent;
2865 if (strEQ(d,"endprotoent")) return KEY_endprotoent;
2872 if (strEQ(d,"for")) return KEY_for;
2875 if (strEQ(d,"fork")) return KEY_fork;
2878 if (strEQ(d,"fcntl")) return KEY_fcntl;
2879 if (strEQ(d,"flock")) return KEY_flock;
2882 if (strEQ(d,"format")) return KEY_format;
2883 if (strEQ(d,"fileno")) return KEY_fileno;
2886 if (strEQ(d,"foreach")) return KEY_foreach;
2889 if (strEQ(d,"formline")) return KEY_formline;
2895 if (strEQ(d,"GT")) return KEY_gt;
2896 if (strEQ(d,"GE")) return KEY_ge;
2900 if (strnEQ(d,"get",3)) {
2905 if (strEQ(d,"ppid")) return KEY_getppid;
2906 if (strEQ(d,"pgrp")) return KEY_getpgrp;
2909 if (strEQ(d,"pwent")) return KEY_getpwent;
2910 if (strEQ(d,"pwnam")) return KEY_getpwnam;
2911 if (strEQ(d,"pwuid")) return KEY_getpwuid;
2914 if (strEQ(d,"peername")) return KEY_getpeername;
2915 if (strEQ(d,"protoent")) return KEY_getprotoent;
2916 if (strEQ(d,"priority")) return KEY_getpriority;
2919 if (strEQ(d,"protobyname")) return KEY_getprotobyname;
2922 if (strEQ(d,"protobynumber"))return KEY_getprotobynumber;
2926 else if (*d == 'h') {
2927 if (strEQ(d,"hostbyname")) return KEY_gethostbyname;
2928 if (strEQ(d,"hostbyaddr")) return KEY_gethostbyaddr;
2929 if (strEQ(d,"hostent")) return KEY_gethostent;
2931 else if (*d == 'n') {
2932 if (strEQ(d,"netbyname")) return KEY_getnetbyname;
2933 if (strEQ(d,"netbyaddr")) return KEY_getnetbyaddr;
2934 if (strEQ(d,"netent")) return KEY_getnetent;
2936 else if (*d == 's') {
2937 if (strEQ(d,"servbyname")) return KEY_getservbyname;
2938 if (strEQ(d,"servbyport")) return KEY_getservbyport;
2939 if (strEQ(d,"servent")) return KEY_getservent;
2940 if (strEQ(d,"sockname")) return KEY_getsockname;
2941 if (strEQ(d,"sockopt")) return KEY_getsockopt;
2943 else if (*d == 'g') {
2944 if (strEQ(d,"grent")) return KEY_getgrent;
2945 if (strEQ(d,"grnam")) return KEY_getgrnam;
2946 if (strEQ(d,"grgid")) return KEY_getgrgid;
2948 else if (*d == 'l') {
2949 if (strEQ(d,"login")) return KEY_getlogin;
2951 else if (strEQ(d,"c")) return KEY_getc;
2956 if (strEQ(d,"gt")) return KEY_gt;
2957 if (strEQ(d,"ge")) return KEY_ge;
2960 if (strEQ(d,"grep")) return KEY_grep;
2961 if (strEQ(d,"goto")) return KEY_goto;
2962 if (strEQ(d,"glob")) return KEY_glob;
2965 if (strEQ(d,"gmtime")) return KEY_gmtime;
2970 if (strEQ(d,"hex")) return KEY_hex;
2975 if (strEQ(d,"if")) return KEY_if;
2978 if (strEQ(d,"int")) return KEY_int;
2981 if (strEQ(d,"index")) return KEY_index;
2982 if (strEQ(d,"ioctl")) return KEY_ioctl;
2987 if (strEQ(d,"join")) return KEY_join;
2991 if (strEQ(d,"keys")) return KEY_keys;
2992 if (strEQ(d,"kill")) return KEY_kill;
2997 if (strEQ(d,"LT")) return KEY_lt;
2998 if (strEQ(d,"LE")) return KEY_le;
3004 if (strEQ(d,"lt")) return KEY_lt;
3005 if (strEQ(d,"le")) return KEY_le;
3006 if (strEQ(d,"lc")) return KEY_lc;
3009 if (strEQ(d,"log")) return KEY_log;
3012 if (strEQ(d,"last")) return KEY_last;
3013 if (strEQ(d,"link")) return KEY_link;
3016 if (strEQ(d,"local")) return KEY_local;
3017 if (strEQ(d,"lstat")) return KEY_lstat;
3020 if (strEQ(d,"length")) return KEY_length;
3021 if (strEQ(d,"listen")) return KEY_listen;
3024 if (strEQ(d,"lcfirst")) return KEY_lcfirst;
3027 if (strEQ(d,"localtime")) return KEY_localtime;
3033 case 1: return KEY_m;
3035 if (strEQ(d,"my")) return KEY_my;
3038 if (strEQ(d,"mkdir")) return KEY_mkdir;
3041 if (strEQ(d,"msgctl")) return KEY_msgctl;
3042 if (strEQ(d,"msgget")) return KEY_msgget;
3043 if (strEQ(d,"msgrcv")) return KEY_msgrcv;
3044 if (strEQ(d,"msgsnd")) return KEY_msgsnd;
3049 if (strEQ(d,"NE")) return KEY_ne;
3052 if (strEQ(d,"next")) return KEY_next;
3053 if (strEQ(d,"ne")) return KEY_ne;
3058 if (strEQ(d,"or")) return KEY_or;
3061 if (strEQ(d,"ord")) return KEY_ord;
3062 if (strEQ(d,"oct")) return KEY_oct;
3065 if (strEQ(d,"open")) return KEY_open;
3068 if (strEQ(d,"opendir")) return KEY_opendir;
3075 if (strEQ(d,"pop")) return KEY_pop;
3078 if (strEQ(d,"push")) return KEY_push;
3079 if (strEQ(d,"pack")) return KEY_pack;
3080 if (strEQ(d,"pipe")) return KEY_pipe;
3083 if (strEQ(d,"print")) return KEY_print;
3086 if (strEQ(d,"printf")) return KEY_printf;
3089 if (strEQ(d,"package")) return KEY_package;
3095 if (strEQ(d,"q")) return KEY_q;
3096 if (strEQ(d,"qq")) return KEY_qq;
3097 if (strEQ(d,"qw")) return KEY_qw;
3098 if (strEQ(d,"qx")) return KEY_qx;
3104 if (strEQ(d,"ref")) return KEY_ref;
3107 if (strEQ(d,"read")) return KEY_read;
3108 if (strEQ(d,"rand")) return KEY_rand;
3109 if (strEQ(d,"recv")) return KEY_recv;
3110 if (strEQ(d,"redo")) return KEY_redo;
3113 if (strEQ(d,"rmdir")) return KEY_rmdir;
3114 if (strEQ(d,"reset")) return KEY_reset;
3117 if (strEQ(d,"return")) return KEY_return;
3118 if (strEQ(d,"rename")) return KEY_rename;
3119 if (strEQ(d,"rindex")) return KEY_rindex;
3122 if (strEQ(d,"require")) return KEY_require;
3123 if (strEQ(d,"reverse")) return KEY_reverse;
3124 if (strEQ(d,"readdir")) return KEY_readdir;
3127 if (strEQ(d,"readlink")) return KEY_readlink;
3128 if (strEQ(d,"readline")) return KEY_readline;
3129 if (strEQ(d,"readpipe")) return KEY_readpipe;
3132 if (strEQ(d,"rewinddir")) return KEY_rewinddir;
3138 case 0: return KEY_s;
3140 if (strEQ(d,"scalar")) return KEY_scalar;
3145 if (strEQ(d,"seek")) return KEY_seek;
3146 if (strEQ(d,"send")) return KEY_send;
3149 if (strEQ(d,"semop")) return KEY_semop;
3152 if (strEQ(d,"select")) return KEY_select;
3153 if (strEQ(d,"semctl")) return KEY_semctl;
3154 if (strEQ(d,"semget")) return KEY_semget;
3157 if (strEQ(d,"setpgrp")) return KEY_setpgrp;
3158 if (strEQ(d,"seekdir")) return KEY_seekdir;
3161 if (strEQ(d,"setpwent")) return KEY_setpwent;
3162 if (strEQ(d,"setgrent")) return KEY_setgrent;
3165 if (strEQ(d,"setnetent")) return KEY_setnetent;
3168 if (strEQ(d,"setsockopt")) return KEY_setsockopt;
3169 if (strEQ(d,"sethostent")) return KEY_sethostent;
3170 if (strEQ(d,"setservent")) return KEY_setservent;
3173 if (strEQ(d,"setpriority")) return KEY_setpriority;
3174 if (strEQ(d,"setprotoent")) return KEY_setprotoent;
3181 if (strEQ(d,"shift")) return KEY_shift;
3184 if (strEQ(d,"shmctl")) return KEY_shmctl;
3185 if (strEQ(d,"shmget")) return KEY_shmget;
3188 if (strEQ(d,"shmread")) return KEY_shmread;
3191 if (strEQ(d,"shmwrite")) return KEY_shmwrite;
3192 if (strEQ(d,"shutdown")) return KEY_shutdown;
3197 if (strEQ(d,"sin")) return KEY_sin;
3200 if (strEQ(d,"sleep")) return KEY_sleep;
3203 if (strEQ(d,"sort")) return KEY_sort;
3204 if (strEQ(d,"socket")) return KEY_socket;
3205 if (strEQ(d,"socketpair")) return KEY_socketpair;
3208 if (strEQ(d,"split")) return KEY_split;
3209 if (strEQ(d,"sprintf")) return KEY_sprintf;
3210 if (strEQ(d,"splice")) return KEY_splice;
3213 if (strEQ(d,"sqrt")) return KEY_sqrt;
3216 if (strEQ(d,"srand")) return KEY_srand;
3219 if (strEQ(d,"stat")) return KEY_stat;
3220 if (strEQ(d,"study")) return KEY_study;
3223 if (strEQ(d,"substr")) return KEY_substr;
3224 if (strEQ(d,"sub")) return KEY_sub;
3229 if (strEQ(d,"system")) return KEY_system;
3232 if (strEQ(d,"sysread")) return KEY_sysread;
3233 if (strEQ(d,"symlink")) return KEY_symlink;
3234 if (strEQ(d,"syscall")) return KEY_syscall;
3237 if (strEQ(d,"syswrite")) return KEY_syswrite;
3246 if (strEQ(d,"tr")) return KEY_tr;
3249 if (strEQ(d,"tie")) return KEY_tie;
3252 if (strEQ(d,"tell")) return KEY_tell;
3253 if (strEQ(d,"time")) return KEY_time;
3256 if (strEQ(d,"times")) return KEY_times;
3259 if (strEQ(d,"telldir")) return KEY_telldir;
3262 if (strEQ(d,"truncate")) return KEY_truncate;
3269 if (strEQ(d,"uc")) return KEY_uc;
3272 if (strEQ(d,"undef")) return KEY_undef;
3273 if (strEQ(d,"until")) return KEY_until;
3274 if (strEQ(d,"untie")) return KEY_untie;
3275 if (strEQ(d,"utime")) return KEY_utime;
3276 if (strEQ(d,"umask")) return KEY_umask;
3279 if (strEQ(d,"unless")) return KEY_unless;
3280 if (strEQ(d,"unpack")) return KEY_unpack;
3281 if (strEQ(d,"unlink")) return KEY_unlink;
3284 if (strEQ(d,"unshift")) return KEY_unshift;
3285 if (strEQ(d,"ucfirst")) return KEY_ucfirst;
3290 if (strEQ(d,"values")) return KEY_values;
3291 if (strEQ(d,"vec")) return KEY_vec;
3296 if (strEQ(d,"warn")) return KEY_warn;
3297 if (strEQ(d,"wait")) return KEY_wait;
3300 if (strEQ(d,"while")) return KEY_while;
3301 if (strEQ(d,"write")) return KEY_write;
3304 if (strEQ(d,"waitpid")) return KEY_waitpid;
3307 if (strEQ(d,"wantarray")) return KEY_wantarray;
3312 if (len == 1) return KEY_x;
3315 if (len == 1) return KEY_y;
3324 checkcomma(s,name,what)
3331 if (dowarn && *s == ' ' && s[1] == '(') { /* XXX gotta be a better way */
3334 for (w++; *w && isSPACE(*w); w++) ;
3335 if (!w || !*w || !strchr(";|}", *w)) /* an advisory hack only... */
3336 warn("%s (...) interpreted as function",name);
3338 while (s < bufend && isSPACE(*s))
3342 while (s < bufend && isSPACE(*s))
3344 if (isIDFIRST(*s)) {
3348 while (s < bufend && isSPACE(*s))
3353 kw = keyword(w, s - w);
3357 croak("No comma allowed after %s", what);
3363 scan_word(s, dest, allow_package, slp)
3369 register char *d = dest;
3373 else if (*s == '\'' && allow_package && isIDFIRST(s[1])) {
3378 else if (*s == ':' && s[1] == ':' && allow_package && isIDFIRST(s[2])) {
3391 scan_ident(s,send,dest,ck_uni)
3393 register char *send;
3400 if (lex_brackets == 0)
3412 else if (*s == '\'' && isIDFIRST(s[1])) {
3417 else if (*s == ':' && s[1] == ':' && isIDFIRST(s[2])) {
3428 if (lex_state != LEX_NORMAL)
3429 lex_state = LEX_INTERPENDMAYBE;
3433 (*s == '$' && s[1] && (isALPHA(s[1]) || strchr("$_{", s[1]))))
3444 if (*d == '^' && (isUPPER(*s) || strchr("[\\]^_?", *s))) {
3448 if (isALPHA(*d) || *d == '_') {
3453 if (*s == '[' || *s == '{') {
3455 croak("Can't use delimiter brackets within expression");
3456 lex_fakebrack = TRUE;
3464 if (lex_state == LEX_INTERPNORMAL && !lex_brackets)
3465 lex_state = LEX_INTERPEND;
3468 s = bracket; /* let the parser handle it */
3472 else if (lex_state == LEX_INTERPNORMAL && !lex_brackets && !intuit_more(s))
3473 lex_state = LEX_INTERPEND;
3478 scan_prefix(pm,string,len)
3483 register SV *tmpstr;
3487 char *origstring = string;
3489 if (ninstr(string, string+len, vert, vert+1))
3493 tmpstr = NEWSV(86,len);
3494 sv_upgrade(tmpstr, SVt_PVBM);
3495 sv_setpvn(tmpstr,string,len);
3498 BmUSEFUL(tmpstr) = 100;
3499 for (d=t; d < e; ) {
3507 case '.': case '[': case '$': case '(': case ')': case '|': case '+':
3512 if (d[1] && strchr("wWbB0123456789sSdDlLuUExc",d[1])) {
3516 Move(d+1,d,e-d,char);
3541 if (d[1] == '*' || (d[1] == '{' && d[2] == '0') || d[1] == '?') {
3549 SvREFCNT_dec(tmpstr);
3553 SvCUR_set(tmpstr, d - t);
3555 pm->op_pmflags |= PMf_ALL;
3556 if (*origstring != '^')
3557 pm->op_pmflags |= PMf_SCANFIRST;
3558 pm->op_pmshort = tmpstr;
3559 pm->op_pmslen = d - t;
3569 multi_start = curcop->cop_line;
3571 s = scan_str(start);
3574 SvREFCNT_dec(lex_stuff);
3576 croak("Search pattern not terminated");
3578 pm = (PMOP*)newPMOP(OP_MATCH, 0);
3580 pm->op_pmflags |= PMf_ONCE;
3582 while (*s == 'i' || *s == 'o' || *s == 'g') {
3586 pm->op_pmflags |= PMf_FOLD;
3590 pm->op_pmflags |= PMf_KEEP;
3594 pm->op_pmflags |= PMf_GLOBAL;
3599 yylval.ival = OP_MATCH;
3607 register char *s = start;
3611 multi_start = curcop->cop_line;
3612 yylval.ival = OP_NULL;
3618 SvREFCNT_dec(lex_stuff);
3620 croak("Substitution pattern not terminated");
3623 if (s[-1] == *start)
3629 SvREFCNT_dec(lex_stuff);
3632 SvREFCNT_dec(lex_repl);
3634 croak("Substitution replacement not terminated");
3637 pm = (PMOP*)newPMOP(OP_SUBST, 0);
3638 while (*s == 'g' || *s == 'i' || *s == 'e' || *s == 'o') {
3645 pm->op_pmflags |= PMf_GLOBAL;
3650 pm->op_pmflags |= PMf_FOLD;
3654 pm->op_pmflags |= PMf_KEEP;
3660 pm->op_pmflags |= PMf_EVAL;
3661 repl = newSVpv("",0);
3663 sv_catpvn(repl, "eval ", 5);
3664 sv_catpvn(repl, "{ ", 2);
3665 sv_catsv(repl, lex_repl);
3666 sv_catpvn(repl, " };", 2);
3667 SvCOMPILED_on(repl);
3668 SvREFCNT_dec(lex_repl);
3673 yylval.ival = OP_SUBST;
3681 if (!pm->op_pmshort && pm->op_pmregexp->regstart &&
3682 (!pm->op_pmregexp->regmust || pm->op_pmregexp->reganch & ROPT_ANCH)
3684 if (!(pm->op_pmregexp->reganch & ROPT_ANCH))
3685 pm->op_pmflags |= PMf_SCANFIRST;
3686 else if (pm->op_pmflags & PMf_FOLD)
3688 pm->op_pmshort = SvREFCNT_inc(pm->op_pmregexp->regstart);
3690 else if (pm->op_pmregexp->regmust) {/* is there a better short-circuit? */
3691 if (pm->op_pmshort &&
3692 sv_eq(pm->op_pmshort,pm->op_pmregexp->regmust))
3694 if (pm->op_pmflags & PMf_SCANFIRST) {
3695 SvREFCNT_dec(pm->op_pmshort);
3696 pm->op_pmshort = Nullsv;
3699 SvREFCNT_dec(pm->op_pmregexp->regmust);
3700 pm->op_pmregexp->regmust = Nullsv;
3704 if (!pm->op_pmshort || /* promote the better string */
3705 ((pm->op_pmflags & PMf_SCANFIRST) &&
3706 (SvCUR(pm->op_pmshort) < SvCUR(pm->op_pmregexp->regmust)) )){
3707 SvREFCNT_dec(pm->op_pmshort); /* ok if null */
3708 pm->op_pmshort = pm->op_pmregexp->regmust;
3709 pm->op_pmregexp->regmust = Nullsv;
3710 pm->op_pmflags |= PMf_SCANFIRST;
3719 register char *s = start;
3726 yylval.ival = OP_NULL;
3731 SvREFCNT_dec(lex_stuff);
3733 croak("Translation pattern not terminated");
3735 if (s[-1] == *start)
3741 SvREFCNT_dec(lex_stuff);
3744 SvREFCNT_dec(lex_repl);
3746 croak("Translation replacement not terminated");
3749 New(803,tbl,256,short);
3750 op = newPVOP(OP_TRANS, 0, (char*)tbl);
3752 complement = delete = squash = 0;
3753 while (*s == 'c' || *s == 'd' || *s == 's') {
3755 complement = OPpTRANS_COMPLEMENT;
3757 delete = OPpTRANS_DELETE;
3759 squash = OPpTRANS_SQUASH;
3762 op->op_private = delete|squash|complement;
3765 yylval.ival = OP_TRANS;
3774 I32 op_type = OP_SCALAR;
3784 if (*s && strchr("`'\"",*s)) {
3786 s = cpytill(d,s,bufend,term,&len);
3798 } /* assuming tokenbuf won't clobber */
3803 if (rsfp || !(d=ninstr(s,bufend,d,d+1)))
3804 herewas = newSVpv(s,bufend-s);
3806 s--, herewas = newSVpv(s,d-s);
3807 s += SvCUR(herewas);
3811 op_type = OP_BACKTICK;
3814 multi_start = curcop->cop_line;
3815 multi_open = multi_close = '<';
3816 tmpstr = NEWSV(87,80);
3820 while (s < bufend &&
3821 (*s != term || bcmp(s,tokenbuf,len) != 0) ) {
3826 curcop->cop_line = multi_start;
3827 missingterm(tokenbuf);
3829 sv_setpvn(tmpstr,d+1,s-d);
3831 sv_catpvn(herewas,s,bufend-s);
3832 sv_setsv(linestr,herewas);
3833 oldoldbufptr = oldbufptr = bufptr = s = SvPVX(linestr);
3834 bufend = SvPVX(linestr) + SvCUR(linestr);
3837 sv_setpvn(tmpstr,"",0); /* avoid "uninitialized" warning */
3838 while (s >= bufend) { /* multiple line string? */
3840 !(oldoldbufptr = oldbufptr = s = sv_gets(linestr, rsfp, 0))) {
3841 curcop->cop_line = multi_start;
3842 missingterm(tokenbuf);
3845 if (perldb && curstash != debstash) {
3846 SV *sv = NEWSV(88,0);
3848 sv_upgrade(sv, SVt_PVMG);
3849 sv_setsv(sv,linestr);
3850 av_store(GvAV(curcop->cop_filegv),
3851 (I32)curcop->cop_line,sv);
3853 bufend = SvPVX(linestr) + SvCUR(linestr);
3854 if (*s == term && bcmp(s,tokenbuf,len) == 0) {
3857 sv_catsv(linestr,herewas);
3858 bufend = SvPVX(linestr) + SvCUR(linestr);
3862 sv_catsv(tmpstr,linestr);
3865 multi_end = curcop->cop_line;
3867 if (SvCUR(tmpstr) + 5 < SvLEN(tmpstr)) {
3868 SvLEN_set(tmpstr, SvCUR(tmpstr) + 1);
3869 Renew(SvPVX(tmpstr), SvLEN(tmpstr), char);
3871 SvREFCNT_dec(herewas);
3873 yylval.ival = op_type;
3878 scan_inputsymbol(start)
3881 register char *s = start;
3886 s = cpytill(d, s+1, bufend, '>', &len);
3890 croak("Unterminated <> operator");
3893 while (*d && (isALNUM(*d) || *d == '\''))
3895 if (d - tokenbuf != len) {
3896 yylval.ival = OP_GLOB;
3898 s = scan_str(start);
3900 croak("Glob not terminated");
3906 (void)strcpy(d,"ARGV");
3908 GV *gv = gv_fetchpv(d+1,TRUE);
3909 lex_op = (OP*)newUNOP(OP_READLINE, 0,
3910 newUNOP(OP_RV2GV, 0,
3911 newUNOP(OP_RV2SV, 0,
3912 newGVOP(OP_GV, 0, gv))));
3913 yylval.ival = OP_NULL;
3918 GV *gv = gv_fetchpv(d,TRUE);
3920 if (strEQ(d,"ARGV")) {
3922 IoFLAGS(io) |= IOf_ARGV|IOf_START;
3924 lex_op = (OP*)newUNOP(OP_READLINE, 0, newGVOP(OP_GV, 0, gv));
3925 yylval.ival = OP_NULL;
3937 register char *s = start;
3938 register char term = *s;
3943 multi_start = curcop->cop_line;
3945 if (term && (tmps = strchr("([{< )]}> )]}>",term)))
3950 sv_upgrade(sv, SVt_PVIV);
3952 SvPOK_only(sv); /* validate pointer */
3955 SvGROW(sv, SvCUR(sv) + (bufend - s) + 1);
3956 to = SvPVX(sv)+SvCUR(sv);
3957 if (multi_open == multi_close) {
3958 for (; s < bufend; s++,to++) {
3959 if (*s == '\n' && !rsfp)
3961 if (*s == '\\' && s+1 < bufend && term != '\\')
3963 else if (*s == term)
3969 for (; s < bufend; s++,to++) {
3970 if (*s == '\n' && !rsfp)
3972 if (*s == '\\' && s+1 < bufend && term != '\\')
3974 else if (*s == term && --brackets <= 0)
3976 else if (*s == multi_open)
3982 SvCUR_set(sv, to - SvPVX(sv));
3984 if (s < bufend) break; /* string ends on this line? */
3987 !(oldoldbufptr = oldbufptr = s = sv_gets(linestr, rsfp, 0))) {
3988 curcop->cop_line = multi_start;
3992 if (perldb && curstash != debstash) {
3993 SV *sv = NEWSV(88,0);
3995 sv_upgrade(sv, SVt_PVMG);
3996 sv_setsv(sv,linestr);
3997 av_store(GvAV(curcop->cop_filegv),
3998 (I32)curcop->cop_line, sv);
4000 bufend = SvPVX(linestr) + SvCUR(linestr);
4002 multi_end = curcop->cop_line;
4004 if (SvCUR(sv) + 5 < SvLEN(sv)) {
4005 SvLEN_set(sv, SvCUR(sv) + 1);
4006 Renew(SvPVX(sv), SvLEN(sv), char);
4019 register char *s = start;
4029 croak("panic: scan_num");
4039 else if (s[1] == '.')
4053 yyerror("Illegal octal digit");
4055 case '0': case '1': case '2': case '3': case '4':
4056 case '5': case '6': case '7':
4060 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
4061 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
4065 i += (*s++ & 7) + 9;
4072 if (tryi32 == i && tryi32 >= 0)
4073 sv_setiv(sv,tryi32);
4075 sv_setnv(sv,(double)i);
4078 case '1': case '2': case '3': case '4': case '5':
4079 case '6': case '7': case '8': case '9': case '.':
4083 while (isDIGIT(*s) || *s == '_') {
4085 if (dowarn && lastub && s - lastub != 3)
4086 warn("Misplaced _ in number");
4092 if (dowarn && lastub && s - lastub != 3)
4093 warn("Misplaced _ in number");
4094 if (*s == '.' && s[1] != '.') {
4097 while (isDIGIT(*s) || *s == '_') {
4104 if (*s && strchr("eE",*s) && strchr("+-0123456789",s[1])) {
4107 *d++ = 'e'; /* At least some Mach atof()s don't grok 'E' */
4108 if (*s == '+' || *s == '-')
4115 value = atof(tokenbuf);
4116 tryi32 = I_32(value);
4117 if (!floatit && (double)tryi32 == value)
4118 sv_setiv(sv,tryi32);
4124 yylval.opval = newSVOP(OP_CONST, 0, sv);
4135 SV *stuff = newSV(0);
4136 bool needargs = FALSE;
4141 for (t = s+1; *t == ' ' || *t == '\t'; t++) ;
4145 if (in_eval && !rsfp) {
4146 eol = strchr(s,'\n');
4151 eol = bufend = SvPVX(linestr) + SvCUR(linestr);
4153 sv_catpvn(stuff, s, eol-s);
4155 if (*s == '@' || *s == '^') {
4164 s = sv_gets(linestr, rsfp, 0);
4165 oldoldbufptr = oldbufptr = bufptr = SvPVX(linestr);
4168 yyerror("Format not terminated");
4177 nextval[nexttoke].ival = 0;
4182 nextval[nexttoke].opval = (OP*)newSVOP(OP_CONST, 0, stuff);
4184 nextval[nexttoke].ival = OP_FORMLINE;
4188 SvREFCNT_dec(stuff);
4200 cshlen = strlen(cshname);
4207 int oldsavestack_ix = savestack_ix;
4214 SAVESPTR(comppad_name);
4215 SAVEINT(comppad_name_fill);
4216 SAVEINT(min_intro_pending);
4217 SAVEINT(max_intro_pending);
4219 comppad_name = newAV();
4220 comppad_name_fill = 0;
4221 min_intro_pending = 0;
4222 av_push(comppad, Nullsv);
4223 curpad = AvARRAY(comppad);
4226 subline = curcop->cop_line;
4227 return oldsavestack_ix;
4244 char *tname = tmpbuf;
4246 if (bufptr > oldoldbufptr && bufptr - oldoldbufptr < 200 &&
4247 oldoldbufptr != oldbufptr && oldbufptr != bufptr) {
4248 while (isSPACE(*oldoldbufptr))
4250 cpy7bit(tmp2buf, oldoldbufptr, bufptr - oldoldbufptr);
4251 sprintf(tname,"near \"%s\"",tmp2buf);
4253 else if (bufptr > oldbufptr && bufptr - oldbufptr < 200 &&
4254 oldbufptr != bufptr) {
4255 while (isSPACE(*oldbufptr))
4257 cpy7bit(tmp2buf, oldbufptr, bufptr - oldbufptr);
4258 sprintf(tname,"near \"%s\"",tmp2buf);
4260 else if (yychar > 255)
4261 tname = "next token ???";
4262 else if (!yychar || (yychar == ';' && !rsfp))
4263 (void)strcpy(tname,"at EOF");
4264 else if ((yychar & 127) == 127) {
4265 if (lex_state == LEX_NORMAL ||
4266 (lex_state == LEX_KNOWNEXT && lex_defer == LEX_NORMAL))
4267 (void)strcpy(tname,"at end of line");
4269 (void)strcpy(tname,"at end of string");
4271 else if (yychar < 32)
4272 (void)sprintf(tname,"next char ^%c",yychar+64);
4274 (void)sprintf(tname,"next char %c",yychar);
4275 (void)sprintf(buf, "%s at %s line %d, %s\n",
4276 s,SvPVX(GvSV(curcop->cop_filegv)),curcop->cop_line,tname);
4277 if (curcop->cop_line == multi_end && multi_start < multi_end)
4278 sprintf(buf+strlen(buf),
4279 " (Might be a runaway multi-line %c%c string starting on line %d)\n",
4280 multi_open,multi_close,multi_start);
4282 sv_catpv(GvSV(gv_fetchpv("@",TRUE)),buf);
4285 if (++error_count >= 10)
4286 croak("%s has too many errors.\n",
4287 SvPVX(GvSV(curcop->cop_filegv)));