1 files changed, 103 insertions, 0 deletions
diff --git a/contrib/perl5/regexp.h b/contrib/perl5/regexp.h
new file mode 100644
index 000000000000..fbc92370b841
--- /dev/null
+++ b/contrib/perl5/regexp.h
@@ -0,0 +1,103 @@
+/*    regexp.h
+ */
+
+/*
+ * Definitions etc. for regexp(3) routines.
+ *
+ * Caveat:  this is V8 regexp(3) [actually, a reimplementation thereof],
+ * not the System V one.
+ */
+
+
+struct regnode {
+    U8	flags;
+    U8  type;
+    U16 next_off;
+};
+
+typedef struct regnode regnode;
+
+struct reg_data {
+    U32 count;
+    U8 *what;
+    void* data[1];
+};
+
+struct reg_substr_datum {
+    I32 min_offset;
+    I32 max_offset;
+    SV *substr;
+};
+
+struct reg_substr_data {
+    struct reg_substr_datum data[3];	/* Actual array */
+};
+
+typedef struct regexp {
+	I32 refcnt;
+	char **startp;
+	char **endp;
+	regnode *regstclass;
+	I32 minlen;		/* mininum possible length of $& */
+	I32 prelen;		/* length of precomp */
+	U32 nparens;		/* number of parentheses */
+	U32 lastparen;		/* last paren matched */
+	char *precomp;		/* pre-compilation regular expression */
+	char *subbase;		/* saved string so \digit works forever */
+	char *subbeg;		/* same, but not responsible for allocation */
+	char *subend;		/* end of subbase */
+	U16 naughty;		/* how exponential is this pattern? */
+	U16 reganch;		/* Internal use only +
+				   Tainted information used by regexec? */
+#if 0
+        SV *anchored_substr;	/* Substring at fixed position wrt start. */
+	I32 anchored_offset;	/* Position of it. */
+        SV *float_substr;	/* Substring at variable position wrt start. */
+	I32 float_min_offset;	/* Minimal position of it. */
+	I32 float_max_offset;	/* Maximal position of it. */
+        SV *check_substr;	/* Substring to check before matching. */
+        I32 check_offset_min;	/* Offset of the above. */
+        I32 check_offset_max;	/* Offset of the above. */
+#else
+        struct reg_substr_data *substrs;
+#endif
+        struct reg_data *data;	/* Additional data. */
+	regnode program[1];	/* Unwarranted chumminess with compiler. */
+} regexp;
+
+#define anchored_substr substrs->data[0].substr
+#define anchored_offset substrs->data[0].min_offset
+#define float_substr substrs->data[1].substr
+#define float_min_offset substrs->data[1].min_offset
+#define float_max_offset substrs->data[1].max_offset
+#define check_substr substrs->data[2].substr
+#define check_offset_min substrs->data[2].min_offset
+#define check_offset_max substrs->data[2].max_offset
+
+#define ROPT_ANCH		(ROPT_ANCH_BOL|ROPT_ANCH_MBOL|ROPT_ANCH_GPOS)
+#define ROPT_ANCH_SINGLE	(ROPT_ANCH_BOL|ROPT_ANCH_GPOS)
+#define ROPT_ANCH_BOL	 	1
+#define ROPT_ANCH_MBOL	 	2
+#define ROPT_ANCH_GPOS	 	4
+#define ROPT_SKIP		8
+#define ROPT_IMPLICIT		0x10	/* Converted .* to ^.* */
+#define ROPT_NOSCAN		0x20	/* Check-string always at start. */
+#define ROPT_GPOS_SEEN		0x40
+#define ROPT_CHECK_ALL		0x80
+#define ROPT_LOOKBEHIND_SEEN	0x100
+#define ROPT_EVAL_SEEN		0x200
+#define ROPT_TAINTED_SEEN	0x400
+/* 0xf800 of reganch is used by PMf_COMPILETIME */
+
+#define RX_MATCH_TAINTED(prog)	((prog)->reganch & ROPT_TAINTED_SEEN)
+#define RX_MATCH_TAINTED_on(prog) ((prog)->reganch |= ROPT_TAINTED_SEEN)
+#define RX_MATCH_TAINTED_off(prog) ((prog)->reganch &= ~ROPT_TAINTED_SEEN)
+#define RX_MATCH_TAINTED_set(prog, t) ((t) \
+				       ? RX_MATCH_TAINTED_on(prog) \
+				       : RX_MATCH_TAINTED_off(prog))
+
+#define REXEC_COPY_STR	1		/* Need to copy the string. */
+#define REXEC_CHECKED	2		/* check_substr already checked. */
+
+#define ReREFCNT_inc(re) ((re && re->refcnt++), re)
+#define ReREFCNT_dec(re) pregfree(re)