X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/53a7735b62aee14640bc8ca619b4267f07d686b9..f2ead8b816519a65496980beeb8606954f270d43:/parser.h

diff --git a/parser.h b/parser.h
index 847e50a..967e872 100644
--- a/parser.h
+++ b/parser.h
@@ -1,12 +1,12 @@
 /*    parser.h
  *
- *    Copyright (c) 2006, 2007, Larry Wall and others
+ *    Copyright (c) 2006, 2007, 2009, 2010, 2011 Larry Wall and others
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
  * 
  * This file defines the layout of the parser object used by the parser
- * and lexer (perly.c, toke,c).
+ * and lexer (perly.c, toke.c).
  */
 
 #define YYEMPTY		(-2)
@@ -14,7 +14,8 @@
 typedef struct {
     YYSTYPE val;    /* semantic value */
     short   state;
-    AV	    *comppad; /* value of PL_comppad when this value was created */
+    I32     savestack_ix;	/* size of savestack at this state */
+    CV	    *compcv; /* value of PL_compcv when this value was created */
 #ifdef DEBUGGING
     const char  *name; /* token/rule name for -Dpv */
 #endif
@@ -38,7 +39,7 @@ typedef struct yy_parser {
 
     /* lexer state */
 
-    I32		lex_brackets;	/* bracket count */
+    I32		lex_brackets;	/* square and curly bracket count */
     I32		lex_casemods;	/* casemod count */
     char	*lex_brackstack;/* what kind of brackets to pop */
     char	*lex_casestack;	/* what kind of case mods in effect */
@@ -51,16 +52,32 @@ 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 */
     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;
+    I32		lex_allbrackets;/* (), [], {}, ?: bracket count */
     SUBLEXINFO	sublex_info;
     SV		*linestr;	/* current chunk of src text */
+    char	*bufptr;	
+    char	*oldbufptr;	
+    char	*oldoldbufptr;	
+    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 */
+    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 */
 
 #ifdef PERL_MAD
     SV		*endwhite;
@@ -75,7 +92,65 @@ typedef struct yy_parser {
     SV		*thisstuff;
     SV		*thistoken;
     SV		*thiswhite;
+
+/* What we know when we're in LEX_KNOWNEXT state. */
+    NEXTTOKE	nexttoke[5];	/* value of next token, if any */
+    I32		curforce;
+#else
+    YYSTYPE	nextval[5];	/* value of next token, if any */
+    I32		nexttype[5];	/* type of next token */
+    I32		nexttoke;
 #endif
+
+    COP		*saved_curcop;	/* the previous PL_curcop */
+    char	tokenbuf[256];
+
+    U8		lex_fakeeof;	/* precedence at which to fake EOF */
+    U8		lex_flags;
+    PERL_BITFIELD16	in_pod:1;      /* lexer is within a =pod section */
+    PERL_BITFIELD16	filtered:1;    /* source filters in evalbytes */
 } yy_parser;
-    
 
+/* flags for lexer API */
+#define LEX_STUFF_UTF8		0x00000001
+#define LEX_KEEP_PREVIOUS	0x00000002
+
+#ifdef PERL_CORE
+# define LEX_START_SAME_FILTER	0x00000001
+# define LEX_IGNORE_UTF8_HINTS	0x00000002
+# define LEX_EVALBYTES		0x00000004
+# define LEX_START_COPIED	0x00000008
+# define LEX_DONT_CLOSE_RSFP	0x00000010
+# define LEX_START_FLAGS \
+	(LEX_START_SAME_FILTER|LEX_START_COPIED \
+	|LEX_IGNORE_UTF8_HINTS|LEX_EVALBYTES|LEX_DONT_CLOSE_RSFP)
+#endif
+
+/* flags for parser API */
+#define PARSE_OPTIONAL          0x00000001
+
+/* values for lex_fakeeof */
+enum {
+    LEX_FAKEEOF_NEVER,      /* don't fake EOF */
+    LEX_FAKEEOF_CLOSING,    /* fake EOF at unmatched closing punctuation */
+    LEX_FAKEEOF_NONEXPR,    /* ... and at token that can't be in expression */
+    LEX_FAKEEOF_LOWLOGIC,   /* ... and at low-precedence logic operator */
+    LEX_FAKEEOF_COMMA,      /* ... and at comma */
+    LEX_FAKEEOF_ASSIGN,     /* ... and at assignment operator */
+    LEX_FAKEEOF_IFELSE,     /* ... and at ?: operator */
+    LEX_FAKEEOF_RANGE,      /* ... and at range operator */
+    LEX_FAKEEOF_LOGIC,      /* ... and at logic operator */
+    LEX_FAKEEOF_BITWISE,    /* ... and at bitwise operator */
+    LEX_FAKEEOF_COMPARE,    /* ... and at comparison operator */
+    LEX_FAKEEOF_MAX
+};
+
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 et:
+ */