Mercurial > repo
diff perl-5.22.2/op_reg_common.h @ 8045:a16537d2fe07
<xfix> tar xf perl-5.22.2.tar.gz # Ah, whatever, I\'m doing it anyway
author | HackBot |
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date | Sat, 14 May 2016 14:54:38 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/perl-5.22.2/op_reg_common.h Sat May 14 14:54:38 2016 +0000 @@ -0,0 +1,143 @@ +/* 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) + +#if 0 /* Temporary to get Jenkins happy again */ +See thread starting at http://nntp.perl.org/group/perl.perl5.porters/220710 + /* 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 */