+ I32 multi_end; /* last line of multi-line string */
+ UV multi_open; /* delimiter of said string */
+ UV multi_close; /* delimiter of said string */
+ bool lex_re_reparsing; /* we're doing G_RE_REPARSING */
+ U8 lex_super_state;/* lexer state to save */
+ U16 lex_sub_inwhat; /* "lex_inwhat" to use in sublex_push */
+ I32 lex_allbrackets;/* (), [], {}, ?: bracket count */
+ OP *lex_sub_op; /* current op in y/// or pattern */
+ SV *lex_sub_repl; /* repl of s/// used in sublex_push */
+ LEXSHARED *lex_shared;
+ SV *linestr; /* current chunk of src text */
+ char *bufptr; /* carries the cursor (current parsing
+ position) from one invocation of yylex
+ to the next */
+ char *oldbufptr; /* in yylex, beginning of current token */
+ char *oldoldbufptr; /* in yylex, beginning of previous token */
+ char *bufend;
+ char *linestart; /* beginning of most recently read line */
+ char *last_uni; /* position of last named-unary op */
+ char *last_lop; /* position of last list operator */
+ /* copline is used to pass a specific line number to newSTATEOP. It
+ is a one-time line number, as newSTATEOP invalidates it (sets it to
+ NOLINE) after using it. The purpose of this is to report line num-
+ bers in multiline constructs using the number of the first line. */
+ line_t copline;
+ U16 in_my; /* we're compiling a "my"/"our" declaration */
+ U8 lex_state; /* next token is determined */
+ U8 error_count; /* how many compile errors so far, max 10 */
+ HV *in_my_stash; /* declared class of this "my" declaration */
+ PerlIO *rsfp; /* current source file pointer */
+ AV *rsfp_filters; /* holds chain of active source filters */
+
+ YYSTYPE nextval[5]; /* value of next token, if any */
+ I32 nexttype[5]; /* type of next token */
+ U8 nexttoke;
+ U8 form_lex_state; /* remember lex_state when parsing fmt */
+ U8 lex_fakeeof; /* precedence at which to fake EOF */
+ U8 lex_flags;
+ COP *saved_curcop; /* the previous PL_curcop */
+ char tokenbuf[256];
+ line_t herelines; /* number of lines in here-doc */
+ line_t preambling; /* line # when processing $ENV{PERL5DB} */
+
+ /* these are valid while parsing a subroutine signature */
+ IV sig_elems; /* number of signature elements seen so far */
+ IV sig_optelems; /* number of optional signature elems seen */
+ char sig_slurpy; /* the sigil of the slurpy var (or null) */
+
+ bool recheck_utf8_validity;
+
+ PERL_BITFIELD16 in_pod:1; /* lexer is within a =pod section */
+ PERL_BITFIELD16 filtered:1; /* source filters in evalbytes */
+ PERL_BITFIELD16 saw_infix_sigil:1; /* saw & or * or % operator */
+ PERL_BITFIELD16 parsed_sub:1; /* last thing parsed was a sub */