add perlreftut.pod

[p5sagit/p5-mst-13.2.git] / regexp.h

diff --git a/regexp.h b/regexp.h
index 2f7aa02..5082610 100644 (file)
--- a/regexp.h
+++ b/regexp.h
@@ -17,6 +17,22 @@ struct regnode {
 
 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;
@@ -30,9 +46,9 @@ typedef struct regexp {
        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 +
+       U32 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. */
@@ -41,28 +57,47 @@ typedef struct regexp {
         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_ANCH_BOL          0x00001
+#define ROPT_ANCH_MBOL         0x00002
+#define ROPT_ANCH_GPOS         0x00004
+#define ROPT_SKIP              0x00008
+#define ROPT_IMPLICIT          0x00010 /* Converted .* to ^.* */
+#define ROPT_NOSCAN            0x00020 /* Check-string always at start. */
+#define ROPT_GPOS_SEEN         0x00040
+#define ROPT_CHECK_ALL         0x00080
+#define ROPT_LOOKBEHIND_SEEN   0x00100
+#define ROPT_EVAL_SEEN         0x00200
+#define ROPT_TAINTED_SEEN      0x00400
+
+/* 0xf800 of reganch is used by PMf_COMPILETIME */
 
-#define ROPT_TAINTED_SEEN      0x8000
+#define ROPT_UTF8              0x10000
+#define ROPT_NAUGHTY           0x20000 /* how exponential is this pattern? */
 
 #define RX_MATCH_TAINTED(prog) ((prog)->reganch & ROPT_TAINTED_SEEN)
-#define RX_MATCH_TAINTED_SET(prog, t) ((t) \
-                                      ? ((prog)->reganch |= ROPT_TAINTED_SEEN) \
-                                      : ((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. */