diff options
Diffstat (limited to 'Master/tlpkg/tlperl/lib/CORE/parser.h')
-rw-r--r-- | Master/tlpkg/tlperl/lib/CORE/parser.h | 35 |
1 files changed, 27 insertions, 8 deletions
diff --git a/Master/tlpkg/tlperl/lib/CORE/parser.h b/Master/tlpkg/tlperl/lib/CORE/parser.h index 1e9c71d3ce8..e7b887ec3b4 100644 --- a/Master/tlpkg/tlperl/lib/CORE/parser.h +++ b/Master/tlpkg/tlperl/lib/CORE/parser.h @@ -21,6 +21,17 @@ typedef struct { #endif } yy_stack_frame; +/* Fields that need to be shared with (i.e., visible to) inner lex- + ing scopes. */ +typedef struct yy_lexshared { + struct yy_lexshared *ls_prev; + SV *ls_linestr; /* mirrors PL_parser->linestr */ + char *ls_bufptr; /* mirrors PL_parser->bufptr */ + char *re_eval_start; /* start of "(?{..." text */ + SV *re_eval_str; /* "(?{...})" text */ + line_t herelines; /* number of lines in here-doc */ +} LEXSHARED; + typedef struct yy_parser { /* parser state */ @@ -52,32 +63,40 @@ typedef struct yy_parser { OP *lex_op; /* extra info to pass back on op */ SV *lex_repl; /* runtime replacement from s/// */ U16 lex_inwhat; /* what kind of quoting are we in */ - OPCODE last_lop_op; /* last list operator */ + OPCODE last_lop_op; /* last named list or unary operator */ I32 lex_starts; /* how many interps done on level */ SV *lex_stuff; /* runtime pattern from m// or s/// */ I32 multi_start; /* 1st line of multi-line string */ I32 multi_end; /* last line of multi-line string */ char multi_open; /* delimiter of said string */ char multi_close; /* delimiter of said string */ - char pending_ident; /* pending identifier lookup */ bool preambled; + bool lex_re_reparsing; /* we're doing G_RE_REPARSING */ I32 lex_allbrackets;/* (), [], {}, ?: bracket count */ SUBLEXINFO sublex_info; + LEXSHARED *lex_shared; SV *linestr; /* current chunk of src text */ - char *bufptr; - char *oldbufptr; - char *oldoldbufptr; + 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 */ - line_t copline; /* current line number */ + /* 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 */ + U8 form_lex_state; /* remember lex_state when parsing fmt */ #ifdef PERL_MAD SV *endwhite; @@ -149,8 +168,8 @@ enum { * Local variables: * c-indentation-style: bsd * c-basic-offset: 4 - * indent-tabs-mode: t + * indent-tabs-mode: nil * End: * - * ex: set ts=8 sts=4 sw=4 noet: + * ex: set ts=8 sts=4 sw=4 et: */ |