*
* 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.
*/
/* These defines are used in both op.h and regexp.h The definitions use the
- * shift form so that ext/B/defsubs_h.PL will pick them up.
+ * shift form so that ext/B/Makefile.PL will pick them up.
*
* Data structures used in the two headers have common fields, and in fact one
* is copied onto the other. This makes it easy to keep them in sync */
/* This tells where the first of these bits is. Setting it to 0 saved cycles
* and memory. I (khw) think the code will work if changed back, but haven't
* tested it */
+/* Make sure to update ext/re/re.pm when changing this! */
+#ifndef RXf_PMf_STD_PMMOD_SHIFT /* Only expand #include of this file once */
+
#define RXf_PMf_STD_PMMOD_SHIFT 0
-/* The bits need to be ordered so that the msix are contiguous starting at bit
+/* The bits need to be ordered so that the msixn are contiguous starting at bit
* 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 */
-#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 */
-#define RXf_PMf_EXTENDED (1 << (RXf_PMf_STD_PMMOD_SHIFT+3)) /* /x */
-#define RXf_PMf_KEEPCOPY (1 << (RXf_PMf_STD_PMMOD_SHIFT+4)) /* /p */
-#define RXf_PMf_LOCALE (1 << (RXf_PMf_STD_PMMOD_SHIFT+5))
+/* 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 (1U << (RXf_PMf_STD_PMMOD_SHIFT+0)) /* /m */
+#define RXf_PMf_SINGLELINE (1U << (RXf_PMf_STD_PMMOD_SHIFT+1)) /* /s */
+#define RXf_PMf_FOLD (1U << (RXf_PMf_STD_PMMOD_SHIFT+2)) /* /i */
+#define RXf_PMf_EXTENDED (1U << (RXf_PMf_STD_PMMOD_SHIFT+3)) /* /x */
+#define RXf_PMf_EXTENDED_MORE (1U << (RXf_PMf_STD_PMMOD_SHIFT+4)) /* /xx */
+#define RXf_PMf_NOCAPTURE (1U << (RXf_PMf_STD_PMMOD_SHIFT+5)) /* /n */
+
+#define RXf_PMf_KEEPCOPY (1U << (RXf_PMf_STD_PMMOD_SHIFT+6)) /* /p */
+
+/* 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 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,
+ REGEX_UNICODE_CHARSET,
+ REGEX_ASCII_RESTRICTED_CHARSET,
+ REGEX_ASCII_MORE_RESTRICTED_CHARSET
+} regex_charset;
+
+#define _RXf_PMf_CHARSET_SHIFT ((RXf_PMf_STD_PMMOD_SHIFT)+7)
+#define RXf_PMf_CHARSET (7U << (_RXf_PMf_CHARSET_SHIFT)) /* 3 bits */
+
+/* Manually decorate these functions here with gcc-style attributes just to
+ * avoid making the regex_charset typedef global, which it would need to be for
+ * proto.h to understand it */
+PERL_STATIC_INLINE void
+set_regex_charset(U32 * const flags, const regex_charset cs)
+ __attribute__nonnull__(1);
+
+PERL_STATIC_INLINE void
+set_regex_charset(U32 * const flags, const regex_charset cs)
+{
+ /* Sets the character set portion of 'flags' to 'cs', which is a member of
+ * the above enum */
+
+ *flags &= ~RXf_PMf_CHARSET;
+ *flags |= (cs << _RXf_PMf_CHARSET_SHIFT);
+}
+
+PERL_STATIC_INLINE regex_charset
+get_regex_charset(const U32 flags)
+ __attribute__warn_unused_result__;
+
+PERL_STATIC_INLINE regex_charset
+get_regex_charset(const U32 flags)
+{
+ /* Returns the enum corresponding to the character set in 'flags' */
+
+ return (regex_charset) ((flags & RXf_PMf_CHARSET) >> _RXf_PMf_CHARSET_SHIFT);
+}
+
+#define RXf_PMf_STRICT (1U<<(RXf_PMf_STD_PMMOD_SHIFT+10))
+
+#define _RXf_PMf_SHIFT_COMPILETIME (RXf_PMf_STD_PMMOD_SHIFT+11)
+
+
+/*
+ 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 (1U<<(RXf_PMf_STD_PMMOD_SHIFT+11))
/* 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+6)
+#define _RXf_PMf_SHIFT_NEXT (RXf_PMf_STD_PMMOD_SHIFT+12)
/* 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_LOCALE|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_EXTENDED_MORE \
+ | RXf_PMf_KEEPCOPY \
+ | RXf_PMf_NOCAPTURE \
+ | RXf_PMf_CHARSET \
+ | RXf_PMf_STRICT )
-/* These copies need to be numerical or defsubs_h.PL won't know about them. */
-#define PMf_MULTILINE 1<<0
-#define PMf_SINGLELINE 1<<1
-#define PMf_FOLD 1<<2
-#define PMf_EXTENDED 1<<3
-#define PMf_KEEPCOPY 1<<4
-#define PMf_LOCALE 1<<5
+#define RXf_PMf_FLAGCOPYMASK \
+ ( RXf_PMf_COMPILETIME \
+ | RXf_PMf_SPLIT )
-#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_LOCALE != RXf_PMf_LOCALE
-# error RXf_PMf defines are wrong
+/* Temporary to get Jenkins happy again
+ * See thread starting at http://nntp.perl.org/group/perl.perl5.porters/220710
+ */
+#if 0
+ /* Exclude win32 because it can't cope with I32_MAX definition */
+#ifndef WIN32
+# if RXf_PMf_COMPILETIME > I32_MAX
+# error RXf_PMf_COMPILETIME wont fit in arg2 field of eval node
+# endif
+#endif
#endif
-#define PMf_COMPILETIME RXf_PMf_COMPILETIME
+/* These copies need to be numerical or ext/B/Makefile.PL won't think they are
+ * constants */
+#define PMf_MULTILINE (1U<<0)
+#define PMf_SINGLELINE (1U<<1)
+#define PMf_FOLD (1U<<2)
+#define PMf_EXTENDED (1U<<3)
+#define PMf_EXTENDED_MORE (1U<<4)
+#define PMf_NOCAPTURE (1U<<5)
+#define PMf_KEEPCOPY (1U<<6)
+#define PMf_CHARSET (7U<<7)
+#define PMf_STRICT (1U<<10)
+#define PMf_SPLIT (1U<<11)
+
+#if PMf_MULTILINE != RXf_PMf_MULTILINE || PMf_SINGLELINE != RXf_PMf_SINGLELINE || PMf_FOLD != RXf_PMf_FOLD || PMf_EXTENDED != RXf_PMf_EXTENDED || PMf_EXTENDED_MORE != RXf_PMf_EXTENDED_MORE || PMf_KEEPCOPY != RXf_PMf_KEEPCOPY || PMf_SPLIT != RXf_PMf_SPLIT || PMf_CHARSET != RXf_PMf_CHARSET || PMf_NOCAPTURE != RXf_PMf_NOCAPTURE || PMf_STRICT != RXf_PMf_STRICT
+# error RXf_PMf defines are wrong
+#endif
/* 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) \
- & (~((1 << RXf_PMf_STD_PMMOD_SHIFT)-1)))
+#if RXf_PMf_COMPILETIME != ((nBIT_MASK(_RXf_PMf_SHIFT_COMPILETIME)) \
+ & (~(nBIT_MASK( RXf_PMf_STD_PMMOD_SHIFT))))
# error RXf_PMf_COMPILETIME is invalid
#endif
+
+#endif /* Include only once */
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