forked from boostorg/regex
merged changes in regex5 branch
[SVN r26692]
This commit is contained in:
John Maddock
@ -33,32 +33,59 @@ class BOOST_REGEX_DECL regbase
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public:
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enum flag_type_
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{
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escape_in_lists = 1, // '\' special inside [...]
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char_classes = escape_in_lists << 1, // [[:CLASS:]] allowed
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intervals = char_classes << 1, // {x,y} allowed
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limited_ops = intervals << 1, // all of + ? and | are normal characters
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newline_alt = limited_ops << 1, // \n is the same as |
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bk_plus_qm = newline_alt << 1, // uses \+ and \?
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bk_braces = bk_plus_qm << 1, // uses \{ and \}
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bk_parens = bk_braces << 1, // uses \( and \)
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bk_refs = bk_parens << 1, // \d allowed
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bk_vbar = bk_refs << 1, // uses \|
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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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use_except = bk_vbar << 1, // exception on error
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failbit = use_except << 1, // error flag
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literal = failbit << 1, // all characters are literals
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icase = literal << 1, // characters are matched regardless of case
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nocollate = 0, // don't use locale specific collation (deprecated)
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collate = icase << 1, // use locale specific collation
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perlex = collate << 1, // perl extensions
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nosubs = perlex << 1, // don't mark sub-expressions
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optimize = 0, // not really supported
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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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basic = char_classes | intervals | limited_ops | bk_braces | bk_parens | bk_refs | collate,
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extended = char_classes | intervals | bk_refs | collate,
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normal = perlex | escape_in_lists | char_classes | intervals | bk_refs | nocollate,
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emacs = bk_braces | bk_parens | bk_refs | bk_vbar,
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awk = extended | escape_in_lists,
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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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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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@ -80,18 +107,6 @@ public:
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restart_fixed_lit = 6,
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restart_count = 7
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};
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flag_type BOOST_REGEX_CALL flags()const
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{
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return _flags;
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}
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regbase();
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regbase(const regbase& b);
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void swap(regbase& that)
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{ std::swap(_flags, that._flags); }
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protected:
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flag_type _flags;
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};
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//
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@ -101,26 +116,24 @@ namespace regex_constants{
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enum flag_type_
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{
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escape_in_lists = ::boost::regbase::escape_in_lists,
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char_classes = ::boost::regbase::char_classes,
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intervals = ::boost::regbase::intervals,
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limited_ops = ::boost::regbase::limited_ops,
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newline_alt = ::boost::regbase::newline_alt,
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bk_plus_qm = ::boost::regbase::bk_plus_qm,
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bk_braces = ::boost::regbase::bk_braces,
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bk_parens = ::boost::regbase::bk_parens,
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bk_refs = ::boost::regbase::bk_refs,
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bk_vbar = ::boost::regbase::bk_vbar,
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use_except = ::boost::regbase::use_except,
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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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perlex = ::boost::regbase::perlex,
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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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basic = ::boost::regbase::basic,
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extended = ::boost::regbase::extended,
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