forked from boostorg/regex
Preparation for V5.
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jzmaddock
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include/boost/regex/v5/regbase.hpp
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include/boost/regex/v5/regbase.hpp
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/*
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*
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* Copyright (c) 1998-2002
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* John Maddock
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*
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* Use, modification and distribution are subject to the
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* Boost Software License, Version 1.0. (See accompanying file
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* LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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*
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*/
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/*
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* LOCATION: see http://www.boost.org for most recent version.
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* FILE regbase.cpp
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* VERSION see <boost/version.hpp>
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* DESCRIPTION: Declares class regbase.
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*/
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#ifndef BOOST_REGEX_V4_REGBASE_HPP
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#define BOOST_REGEX_V4_REGBASE_HPP
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#ifdef BOOST_MSVC
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#pragma warning(push)
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#pragma warning(disable: 4103)
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#endif
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#ifdef BOOST_HAS_ABI_HEADERS
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# include BOOST_ABI_PREFIX
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#endif
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#ifdef BOOST_MSVC
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#pragma warning(pop)
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#endif
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namespace boost{
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//
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// class regbase
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// handles error codes and flags
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//
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class BOOST_REGEX_DECL regbase
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{
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public:
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enum flag_type_
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{
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//
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// Divide the flags up into logical groups:
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// bits 0-7 indicate main synatx type.
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// bits 8-15 indicate syntax subtype.
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// bits 16-31 indicate options that are common to all
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// regex syntaxes.
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// In all cases the default is 0.
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//
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// Main synatx group:
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//
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perl_syntax_group = 0, // default
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basic_syntax_group = 1, // POSIX basic
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literal = 2, // all characters are literals
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main_option_type = literal | basic_syntax_group | perl_syntax_group, // everything!
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//
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// options specific to perl group:
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//
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no_bk_refs = 1 << 8, // \d not allowed
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no_perl_ex = 1 << 9, // disable perl extensions
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no_mod_m = 1 << 10, // disable Perl m modifier
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mod_x = 1 << 11, // Perl x modifier
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mod_s = 1 << 12, // force s modifier on (overrides match_not_dot_newline)
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no_mod_s = 1 << 13, // force s modifier off (overrides match_not_dot_newline)
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//
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// options specific to basic group:
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//
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no_char_classes = 1 << 8, // [[:CLASS:]] not allowed
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no_intervals = 1 << 9, // {x,y} not allowed
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bk_plus_qm = 1 << 10, // uses \+ and \?
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bk_vbar = 1 << 11, // use \| for alternatives
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emacs_ex = 1 << 12, // enables emacs extensions
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//
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// options common to all groups:
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//
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no_escape_in_lists = 1 << 16, // '\' not special inside [...]
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newline_alt = 1 << 17, // \n is the same as |
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no_except = 1 << 18, // no exception on error
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failbit = 1 << 19, // error flag
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icase = 1 << 20, // characters are matched regardless of case
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nocollate = 0, // don't use locale specific collation (deprecated)
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collate = 1 << 21, // use locale specific collation
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nosubs = 1 << 22, // don't mark sub-expressions
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save_subexpression_location = 1 << 23, // save subexpression locations
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no_empty_expressions = 1 << 24, // no empty expressions allowed
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optimize = 0, // not really supported
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basic = basic_syntax_group | collate | no_escape_in_lists,
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extended = no_bk_refs | collate | no_perl_ex | no_escape_in_lists,
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normal = 0,
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emacs = basic_syntax_group | collate | emacs_ex | bk_vbar,
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awk = no_bk_refs | collate | no_perl_ex,
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grep = basic | newline_alt,
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egrep = extended | newline_alt,
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sed = basic,
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perl = normal,
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ECMAScript = normal,
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JavaScript = normal,
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JScript = normal
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};
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typedef unsigned int flag_type;
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enum restart_info
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{
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restart_any = 0,
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restart_word = 1,
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restart_line = 2,
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restart_buf = 3,
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restart_continue = 4,
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restart_lit = 5,
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restart_fixed_lit = 6,
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restart_count = 7
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};
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};
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//
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// provide std lib proposal compatible constants:
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//
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namespace regex_constants{
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enum flag_type_
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{
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no_except = ::boost::regbase::no_except,
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failbit = ::boost::regbase::failbit,
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literal = ::boost::regbase::literal,
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icase = ::boost::regbase::icase,
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nocollate = ::boost::regbase::nocollate,
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collate = ::boost::regbase::collate,
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nosubs = ::boost::regbase::nosubs,
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optimize = ::boost::regbase::optimize,
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bk_plus_qm = ::boost::regbase::bk_plus_qm,
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bk_vbar = ::boost::regbase::bk_vbar,
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no_intervals = ::boost::regbase::no_intervals,
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no_char_classes = ::boost::regbase::no_char_classes,
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no_escape_in_lists = ::boost::regbase::no_escape_in_lists,
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no_mod_m = ::boost::regbase::no_mod_m,
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mod_x = ::boost::regbase::mod_x,
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mod_s = ::boost::regbase::mod_s,
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no_mod_s = ::boost::regbase::no_mod_s,
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save_subexpression_location = ::boost::regbase::save_subexpression_location,
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no_empty_expressions = ::boost::regbase::no_empty_expressions,
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basic = ::boost::regbase::basic,
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extended = ::boost::regbase::extended,
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normal = ::boost::regbase::normal,
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emacs = ::boost::regbase::emacs,
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awk = ::boost::regbase::awk,
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grep = ::boost::regbase::grep,
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egrep = ::boost::regbase::egrep,
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sed = basic,
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perl = normal,
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ECMAScript = normal,
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JavaScript = normal,
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JScript = normal
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};
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typedef ::boost::regbase::flag_type syntax_option_type;
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} // namespace regex_constants
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} // namespace boost
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#ifdef BOOST_MSVC
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#pragma warning(push)
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#pragma warning(disable: 4103)
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#endif
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#ifdef BOOST_HAS_ABI_HEADERS
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# include BOOST_ABI_SUFFIX
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#endif
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#ifdef BOOST_MSVC
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#pragma warning(pop)
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#endif
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#endif
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