/* op_reg_common.h * * Definitions common to by op.h and regexp.h * * 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/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 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 */ /* 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+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_FOLD|RXf_PMf_EXTENDED|RXf_PMf_EXTENDED_MORE|RXf_PMf_KEEPCOPY|RXf_PMf_NOCAPTURE|RXf_PMf_CHARSET|RXf_PMf_STRICT) #define RXf_PMf_FLAGCOPYMASK (RXf_PMf_COMPILETIME|RXf_PMf_SPLIT) /* 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 /* 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_COMPILETIME))-1) \ & (~((1 << RXf_PMf_STD_PMMOD_SHIFT)-1))) # error RXf_PMf_COMPILETIME is invalid #endif #endif /* Include only once */