X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/759ba3f2b29561951c5804fbda783e919b2ddabf..386de64977e726b54f2312cf12fb0108a0993ec2:/op_reg_common.h

diff --git a/op_reg_common.h b/op_reg_common.h
index bde38b8..9dcdaae 100644
--- a/op_reg_common.h
+++ b/op_reg_common.h
@@ -2,7 +2,7 @@
  *
  *    Definitions common to by op.h and regexp.h
  *
- *    Copyright (C) 2010 by Larry Wall and others
+ *    Copyright (C) 2010, 2011 by 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.
@@ -27,6 +27,7 @@
  * RXf_PMf_STD_PMMOD_SHIFT, followed by the p.  See STD_PAT_MODS and
  * INT_PAT_MODS in regexp.h for the reason contiguity is needed */
 /* Make sure to update lib/re.pm when changing these! */
+/* Make sure you keep the pure PMf_ versions below in sync */
 #define RXf_PMf_MULTILINE      (1 << (RXf_PMf_STD_PMMOD_SHIFT+0))    /* /m */
 #define RXf_PMf_SINGLELINE     (1 << (RXf_PMf_STD_PMMOD_SHIFT+1))    /* /s */
 #define RXf_PMf_FOLD           (1 << (RXf_PMf_STD_PMMOD_SHIFT+2))    /* /i */
@@ -36,7 +37,9 @@
 /* The character set for the regex is stored in a field of more than one bit
  * using an enum, for reasons of compactness and to ensure that the options are
  * mutually exclusive */
-/* Make sure to update ext/re/re.pm when changing this! */
+/* Make sure to update ext/re/re.pm and regcomp.sym (as these are used as
+ * offsets for various node types, like POSIXD vs POSIXL, etc) when changing
+ * this! */
 typedef enum {
     REGEX_DEPENDS_CHARSET = 0,
     REGEX_LOCALE_CHARSET,
@@ -77,13 +80,27 @@ get_regex_charset(const U32 flags)
     return (regex_charset) ((flags & RXf_PMf_CHARSET) >> _RXf_PMf_CHARSET_SHIFT);
 }
 
+#define _RXf_PMf_SHIFT_COMPILETIME (RXf_PMf_STD_PMMOD_SHIFT+8)
+
+/*
+  Set in Perl_pmruntime if op_flags & OPf_SPECIAL, i.e. split. Will
+  be used by regex engines to check whether they should set
+  RXf_SKIPWHITE
+*/
+#define RXf_PMf_SPLIT (1<<(RXf_PMf_STD_PMMOD_SHIFT+8))
+
 /* Next available bit after the above.  Name begins with '_' so won't be
  * exported by B */
-#define _RXf_PMf_SHIFT_NEXT (RXf_PMf_STD_PMMOD_SHIFT+8)
+#define _RXf_PMf_SHIFT_NEXT (RXf_PMf_STD_PMMOD_SHIFT+9)
 
 /* Mask of the above bits.  These need to be transferred from op_pmflags to
  * re->extflags during compilation */
-#define RXf_PMf_COMPILETIME    (RXf_PMf_MULTILINE|RXf_PMf_SINGLELINE|RXf_PMf_CHARSET|RXf_PMf_FOLD|RXf_PMf_EXTENDED|RXf_PMf_KEEPCOPY)
+#define RXf_PMf_COMPILETIME    (RXf_PMf_MULTILINE|RXf_PMf_SINGLELINE|RXf_PMf_FOLD|RXf_PMf_EXTENDED|RXf_PMf_KEEPCOPY|RXf_PMf_CHARSET)
+#define RXf_PMf_FLAGCOPYMASK   (RXf_PMf_MULTILINE|RXf_PMf_SINGLELINE|RXf_PMf_FOLD|RXf_PMf_EXTENDED|RXf_PMf_KEEPCOPY|RXf_PMf_CHARSET|RXf_PMf_SPLIT)
+
+#if RXf_PMf_COMPILETIME > 255
+#  error RXf_PMf_COMPILETIME wont fit in U8 flags field of eval node
+#endif
 
 /* These copies need to be numerical or defsubs_h.PL won't know about them. */
 #define PMf_MULTILINE    1<<0
@@ -91,18 +108,18 @@ get_regex_charset(const U32 flags)
 #define PMf_FOLD         1<<2
 #define PMf_EXTENDED     1<<3
 #define PMf_KEEPCOPY     1<<4
+#define PMf_CHARSET      7<<5
+#define PMf_SPLIT        1<<8
 
-#if PMf_MULTILINE != RXf_PMf_MULTILINE || PMf_SINGLELINE != RXf_PMf_SINGLELINE || PMf_FOLD != RXf_PMf_FOLD || PMf_EXTENDED != RXf_PMf_EXTENDED || PMf_KEEPCOPY != RXf_PMf_KEEPCOPY
+#if PMf_MULTILINE != RXf_PMf_MULTILINE || PMf_SINGLELINE != RXf_PMf_SINGLELINE || PMf_FOLD != RXf_PMf_FOLD || PMf_EXTENDED != RXf_PMf_EXTENDED || PMf_KEEPCOPY != RXf_PMf_KEEPCOPY || PMf_SPLIT != RXf_PMf_SPLIT || PMf_CHARSET != RXf_PMf_CHARSET
 #   error RXf_PMf defines are wrong
 #endif
 
-#define PMf_COMPILETIME RXf_PMf_COMPILETIME
-
 /*  Error check that haven't left something out of this.  This isn't done
  *  directly in the #define because doing so confuses regcomp.pl.
  *  (2**n - 1) is n 1 bits, so the below gets the contiguous bits between the
  *  beginning and ending shifts */
-#if RXf_PMf_COMPILETIME != (((1 << (_RXf_PMf_SHIFT_NEXT))-1) \
+#if RXf_PMf_COMPILETIME != (((1 << (_RXf_PMf_SHIFT_COMPILETIME))-1) \
                             & (~((1 << RXf_PMf_STD_PMMOD_SHIFT)-1)))
 #   error RXf_PMf_COMPILETIME is invalid
 #endif