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Tweeked regex version number to reference <boost/version.hpp> [SVN r11309]
2001-09-30 10:30:14 +00:00
<html>
Initial boost-regex++ release [SVN r7845]
2000-09-26 11:48:28 +00:00
Tweeked regex version number to reference <boost/version.hpp> [SVN r11309]
2001-09-30 10:30:14 +00:00
<head>
<meta http-equiv="Content-Type"
content="text/html; charset=iso-8859-1">
<meta name="keywords"
content="regex++, regular expressions, regular expression library, C++">
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<title> regex++ traits-class reference </title>
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Initial boost-regex++ release [SVN r7845]
2000-09-26 11:48:28 +00:00
Tweeked regex version number to reference <boost/version.hpp> [SVN r11309]
2001-09-30 10:30:14 +00:00
<body bgcolor="#FFFFFF" link="#0000FF" vlink="#800080">
Initial boost-regex++ release [SVN r7845]
2000-09-26 11:48:28 +00:00
Tweeked regex version number to reference <boost/version.hpp> [SVN r11309]
2001-09-30 10:30:14 +00:00
<table border="0" cellpadding="7" cellspacing="0" width="100%">
<tr>
<td valign="top"><h3><img src="../../c++boost.gif"
alt="C++ Boost" width="276" height="86"> </h3>
</td>
<td valign="top"><h3 align="center">Regex++, Traits Class
Reference. </h3>
<p align="left"><i>(Version 3.20, 29th Sept 2001)</i>&nbsp;
</p>
<p align="left"><i>Copyright (c) 1998-2001 </i></p>
<p align="left"><i>Dr John Maddock</i></p>
<p align="left"><i>Permission to use, copy, modify,
distribute and sell this software and its documentation
for any purpose is hereby granted without fee, provided
that the above copyright notice appear in all copies and
that both that copyright notice and this permission
notice appear in supporting documentation. Dr John
Maddock makes no representations about the suitability of
this software for any purpose. It is provided &quot;as is&quot;
without express or implied warranty.</i></p>
</td>
</tr>
</table>
<hr>
<p>This section describes the traits class requirements of the
reg_expression template class, these requirements are somewhat
complex (sorry), and subject to change as uses ask for new
features, however I will try to keep them stable for a while, and
ideally the requirements should lessen rather than increase. </p>
<p>The <i>reg_expression</i> traits classes encapsulate both the
properties of a character type, and the properties of the locale
associated with that type. The associated locale may be defined
at run-time (via std::locale), or hard-coded into the traits
class and determined at compile time. </p>
<p>The following example class illustrates the interface required
by a &quot;typical&quot; traits class for use with class
reg_expression: </p>
<pre>
Initial boost-regex++ release [SVN r7845]
2000-09-26 11:48:28 +00:00
class mytraits
{
typedef implementation_defined char_type;
typedef implementation_defined uchar_type;
typedef implementation_defined size_type;
typedef implementation_defined string_type;
typedef implementation_defined locale_type;
typedef implementation_defined uint32_t;
struct sentry
{
sentry(const mytraits&amp;);
operator void*() { return this; }
};
enum char_syntax_type
{
syntax_char = 0,
syntax_open_bracket = 1, // (
syntax_close_bracket = 2, // )
syntax_dollar = 3, // $
syntax_caret = 4, // ^
syntax_dot = 5, // .
syntax_star = 6, // *
syntax_plus = 7, // +
syntax_question = 8, // ?
syntax_open_set = 9, // [
syntax_close_set = 10, // ]
syntax_or = 11, // |
syntax_slash = 12, //
syntax_hash = 13, // #
syntax_dash = 14, // -
syntax_open_brace = 15, // {
syntax_close_brace = 16, // }
syntax_digit = 17, // 0-9
syntax_b = 18, // for \b
syntax_B = 19, // for \B
syntax_left_word = 20, // for \&lt;
syntax_right_word = 21, // for \
syntax_w = 22, // for \w
syntax_W = 23, // for \W
syntax_start_buffer = 24, // for \`
syntax_end_buffer = 25, // for \'
syntax_newline = 26, // for newline alt
syntax_comma = 27, // for {x,y}
syntax_a = 28, // for \a
syntax_f = 29, // for \f
syntax_n = 30, // for \n
syntax_r = 31, // for \r
syntax_t = 32, // for \t
syntax_v = 33, // for \v
syntax_x = 34, // for \xdd
syntax_c = 35, // for \cx
syntax_colon = 36, // for [:...:]
syntax_equal = 37, // for [=...=]
// perl ops:
syntax_e = 38, // for \e
syntax_l = 39, // for \l
syntax_L = 40, // for \L
syntax_u = 41, // for \u
syntax_U = 42, // for \U
syntax_s = 43, // for \s
syntax_S = 44, // for \S
syntax_d = 45, // for \d
syntax_D = 46, // for \D
syntax_E = 47, // for \Q\E
syntax_Q = 48, // for \Q\E
syntax_X = 49, // for \X
syntax_C = 50, // for \C
syntax_Z = 51, // for \Z
syntax_G = 52, // for \G
syntax_bang = 53, // reserved for future use '!'
syntax_and = 54, // reserve for future use '&amp;'
};
enum{
char_class_none = 0,
char_class_alpha,
char_class_cntrl,
char_class_digit,
char_class_lower,
char_class_punct,
char_class_space,
char_class_upper,
char_class_xdigit,
char_class_blank,
char_class_unicode,
char_class_alnum,
char_class_graph,
char_class_print,
char_class_word
};
static size_t length(const char_type* p);
unsigned int syntax_type(size_type c)const;
char_type translate(char_type c, bool icase)const;
void transform(string_type&amp; out, const string_type&amp; in)const;
void transform_primary(string_type&amp; out, const string_type&amp; in)const;
bool is_separator(char_type c)const;
bool is_combining(char_type)const;
bool is_class(char_type c, uint32_t f)const;
int toi(char_type c)const;
int toi(const char_type*&amp; first, const char_type* last, int radix)const;
uint32_t lookup_classname(const char_type* first, const char_type* last)const;
bool lookup_collatename(string_type&amp; buf, const char_type* first, const char_type* last)const;
locale_type imbue(locale_type l);
locale_type getloc()const;
std::string error_string(unsigned id)const;
mytraits();
~mytraits();
};
Tweeked regex version number to reference <boost/version.hpp> [SVN r11309]
2001-09-30 10:30:14 +00:00
</pre>
<p>The member types required by a traits class are defined as
follows:<br>
&nbsp;&nbsp; </p>
<table border="0" cellpadding="7" width="100%">
<tr>
<td valign="top" width="4%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="26%" bgcolor="#008080">Member
name </td>
<td valign="top" width="63%" bgcolor="#008080">Description
</td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="4%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="26%" bgcolor="#C0C0C0">char_type </td>
<td valign="top" width="63%" bgcolor="#C0C0C0">The
character type encapsulated by this traits class, must be
a POD type, and be convertible to uchar_type. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="4%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="26%" bgcolor="#C0C0C0">uchar_type
</td>
<td valign="top" width="63%" bgcolor="#C0C0C0">The
unsigned type corresponding to char_type, must be
convertible to size_type. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="4%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="26%" bgcolor="#C0C0C0">size_type </td>
<td valign="top" width="63%" bgcolor="#C0C0C0">An
unsigned integral type, with at least as much precision
as uchar_type. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="4%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="26%" bgcolor="#C0C0C0">string_type
</td>
<td valign="top" width="63%" bgcolor="#C0C0C0">A type
that offers the same facilities as std::basic_string&lt;char_type.
This is used for collating elements, and sort strings, if
char_type has no locale dependent collation (it is not a
&quot;character&quot;), then it could be something
simpler than std::basic_string. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="4%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="26%" bgcolor="#C0C0C0">locale_type
</td>
<td valign="top" width="63%" bgcolor="#C0C0C0">A type
that encapsulates the locale used by the traits class,
probably std::locale but could be a platform specific
type, or a dummy type if per-instance locales are not
supported by the traits class. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="4%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="26%" bgcolor="#C0C0C0">uint32_t </td>
<td valign="top" width="63%" bgcolor="#C0C0C0">An
unsigned integral type with at least 32-bits of
precision, used as a bitmask type for character
classification. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="4%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="26%" bgcolor="#C0C0C0">sentry </td>
<td valign="top" width="63%" bgcolor="#C0C0C0">A class or
struct type which is constructible from an instance of
the traits class, and is convertible to void*. An
instance of type sentry will be constructed before
compiling each regular expression, it provides an
opportunity to carry out prefix/suffix operations on the
traits class.&nbsp; <p>For example a traits class that
encapsulates the global locale, can use this as an
opportunity to synchronize with the global locale (by
updating any cached data). </p>
</td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
</table>
<p><br>
&nbsp;The following member constants are used to represent the
locale independent syntax of a regular expression; the member
function <i>syntax_type</i> returns one of these values, and is
used to convert a locale dependent regular expression, into a
locale-independent sequence of tokens.<br>
&nbsp;</p>
<table border="0" cellpadding="7" width="100%">
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#008080">Member
constant&nbsp; </td>
<td valign="top" width="50%" bgcolor="#008080">English
language representation&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_char&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">All non-special
characters.&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_open_bracket&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">(&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_close_bracket&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">)&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_dollar&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">$&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_caret&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">^&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_dot&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">.&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_star&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">*&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_plus&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">+&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_question&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">?&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_open_set&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">[&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_close_set&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">]&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_or&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">|&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_slash&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">\&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_hash&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">#&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_dash&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">-&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_open_brace&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">{&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_close_brace&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">}&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_digit&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">0123456789&nbsp;
</td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_b&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">b&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_B&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">B&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_left_word&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">&lt;&nbsp;
</td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_right_word&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_w&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">w&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_W&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">W&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_start_buffer&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">`&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_end_buffer&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">'&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_newline&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">\n&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_comma&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">,&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_a&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">a&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_f&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">f&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_n&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">n&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_r&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">r&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_t&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">t&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_v&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">v&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_x&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">x&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_c&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">c&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_colon&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">:&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_equal&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">=&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_e&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">e&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_l&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">l&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_L&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">L&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_u&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">u&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_U&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">U&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_s&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">s&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_S&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">S&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_d&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">d&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_D&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">D&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_E&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">E&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_Q&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">Q&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_X&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">X&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_C&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">C&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_Z&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">Z&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_G&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">G&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_bang&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">!&nbsp; </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="40%" bgcolor="#C0C0C0">syntax_and&nbsp;
</td>
<td valign="top" width="50%" bgcolor="#C0C0C0">&amp;&nbsp;
</td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
</table>
<p>The following member constants are used to represent
particular character classifications:<br>
&nbsp; </p>
<table border="0" cellpadding="7" width="100%">
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#008080">Member
constant&nbsp; </td>
<td valign="top" width="56%" bgcolor="#008080">Description
</td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#C0C0C0">char_class_none&nbsp;
</td>
<td valign="top" width="56%" bgcolor="#C0C0C0">No
classification, must be zero. </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#C0C0C0">char_class_alpha&nbsp;
</td>
<td valign="top" width="56%" bgcolor="#C0C0C0">All
alphabetic characters. </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#C0C0C0">char_class_cntrl&nbsp;
</td>
<td valign="top" width="56%" bgcolor="#C0C0C0">All
control characters. </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#C0C0C0">char_class_digit&nbsp;
</td>
<td valign="top" width="56%" bgcolor="#C0C0C0">All
decimal digits. </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#C0C0C0">char_class_lower&nbsp;
</td>
<td valign="top" width="56%" bgcolor="#C0C0C0">All lower
case characters. </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#C0C0C0">char_class_punct&nbsp;
</td>
<td valign="top" width="56%" bgcolor="#C0C0C0">All
punctuation characters. </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#C0C0C0">char_class_space&nbsp;
</td>
<td valign="top" width="56%" bgcolor="#C0C0C0">All white-space
characters. </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#C0C0C0">char_class_upper&nbsp;
</td>
<td valign="top" width="56%" bgcolor="#C0C0C0">All upper
case characters. </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#C0C0C0">char_class_xdigit&nbsp;
</td>
<td valign="top" width="56%" bgcolor="#C0C0C0">All
hexadecimal digit characters. </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#C0C0C0">char_class_blank&nbsp;
</td>
<td valign="top" width="56%" bgcolor="#C0C0C0">All blank
characters (space + tab). </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#C0C0C0">char_class_unicode&nbsp;
</td>
<td valign="top" width="56%" bgcolor="#C0C0C0">All
extended unicode characters - those that can not be
represented as a single narrow character. </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#C0C0C0">char_class_alnum&nbsp;
</td>
<td valign="top" width="56%" bgcolor="#C0C0C0">All alpha-numeric
characters. </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#C0C0C0">char_class_graph&nbsp;
</td>
<td valign="top" width="56%" bgcolor="#C0C0C0">All
graphic characters. </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#C0C0C0">char_class_print&nbsp;
</td>
<td valign="top" width="56%" bgcolor="#C0C0C0">All
printable characters. </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="33%" bgcolor="#C0C0C0">char_class_word&nbsp;
</td>
<td valign="top" width="56%" bgcolor="#C0C0C0">All word
characters (alphanumeric characters + the underscore). </td>
<td valign="top" width="5%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
</table>
<p>The following member functions are required by all regular
expression traits classes, those members that are declared here
as <i>const</i>, could be declared <i>static</i> instead if the
class does not contain instance data:<br>
&nbsp; </p>
<table border="0" cellpadding="7" width="100%">
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#008080">Member
function </td>
<td valign="top" width="51%" bgcolor="#008080">Description
</td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">static
size_t length(const char_type* p); </td>
<td valign="top" width="51%" bgcolor="#C0C0C0">Returns
the length of the null-terminated string p. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">unsigned
int syntax_type(size_type c)const; </td>
<td valign="top" width="51%" bgcolor="#C0C0C0">&nbsp;Converts
an input character into a locale independent token (one
of the syntax_xxx member constants). Called when parsing
the regular expression into a locale-independent parse
tree.&nbsp; <p>Example: in English language regular
expressions we would use &quot;[[:word:]]&quot; to
represent the character class of all word characters, and
&quot;\w&quot; as a shortcut for this. Consequently
syntax_type('w') returns syntax_w. In French language
regular expressions, we would use &quot;[[:mot:]]&quot;
in place of &quot;[[:word:]]&quot; and therefore &quot;\m&quot;
in place of &quot;\w&quot;, therefore it is syntax_type('m')
that returns syntax_w. </p>
</td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">char_type
translate(char_type c, bool icase)const; </td>
<td valign="top" width="51%" bgcolor="#C0C0C0">&nbsp;Translates
an input character into a unique identifier that
represents the equivalence class that that character
belongs to. If icase is true, then the returned value is
insensitive to case.&nbsp; <p>[An equivalence class is
the set of all characters that must be treated as being
equivalent to each other.] </p>
</td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">void
transform(string_type&amp; out, const string_type&amp; in)const;
</td>
<td valign="top" width="51%" bgcolor="#C0C0C0">&nbsp;Transforms
the string <i>in</i>, into a locale-dependent sort key,
and stores the result in <i>out</i>. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">void
transform_primary(string_type&amp; out, const
string_type&amp; in)const; </td>
<td valign="top" width="51%" bgcolor="#C0C0C0">&nbsp;Transforms
the string <i>in,</i> into a locale-dependent primary
sort key, and stores the result in <i>out</i>. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">bool
is_separator(char_type c)const; </td>
<td valign="top" width="51%" bgcolor="#C0C0C0">&nbsp;Returns
true only if <i>c</i> is a line separator. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">bool
is_combining(char_type c)const; </td>
<td valign="top" width="51%" bgcolor="#C0C0C0">&nbsp;Returns
true only if <i>c</i> is a unicode combining character. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">bool
is_class(char_type c, uint32_t f)const; </td>
<td valign="top" width="51%" bgcolor="#C0C0C0">&nbsp;Returns
true only if <i>c</i> is a member of one of the character
classes represented by the bitmap <i>f</i>. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">int toi(char_type
c)const; </td>
<td valign="top" width="51%" bgcolor="#C0C0C0">&nbsp;Converts
the character <i>c</i> to a decimal integer.&nbsp; <p>[Precondition:
is_class(c,char_class_digit)==true] </p>
</td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">int toi(const
char_type*&amp; first, const char_type* last, int radix)const;
</td>
<td valign="top" width="51%" bgcolor="#C0C0C0">&nbsp;Converts
the string [first-last) into an integral value using base
<i>radix.</i> Stops when it finds the first non-digit
character, and sets <i>first</i> to point to that
character.&nbsp; <p>[Precondition: is_class(*first,char_class_digit)==true]
</p>
</td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">uint32_t
lookup_classname(const char_type* first, const char_type*
last)const; </td>
<td valign="top" width="51%" bgcolor="#C0C0C0">&nbsp;Returns
the bitmap representing the character class [first-last),
or char_class_none if [first-last) is not recognized as a
character class name. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">bool
lookup_collatename(string_type&amp; buf, const char_type*
first, const char_type* last)const; </td>
<td valign="top" width="51%" bgcolor="#C0C0C0">If the
sequence [first-last) is the name of a known collating
element, then stores the collating element in buf, and
returns true, otherwise returns false. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">locale_type
imbue(locale_type l); </td>
<td valign="top" width="51%" bgcolor="#C0C0C0">&nbsp;Imbues
the class with the locale <i>l</i>. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">locale_type
getloc()const; </td>
<td valign="top" width="51%" bgcolor="#C0C0C0">&nbsp;Returns
the traits-class locale. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">std::string
error_string(unsigned id)const; </td>
<td valign="top" width="51%" bgcolor="#C0C0C0">&nbsp;Returns
the locale-dependent error-string associated with the
error-number <i>id</i>. The parameter <i>id</i> is one of
the REG_XXX error codes described by the POSIX standard,
and defined in &lt;boost/cregex.hpp. </td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">mytraits();
</td>
<td valign="top" width="51%" bgcolor="#C0C0C0">&nbsp;Constructor.
</td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
<tr>
<td valign="top" width="7%" bgcolor="#FFFFFF">&nbsp; </td>
<td valign="top" width="36%" bgcolor="#C0C0C0">~ mytraits();
</td>
<td valign="top" width="51%" bgcolor="#C0C0C0">&nbsp;Destructor.
</td>
<td valign="top" width="6%" bgcolor="#FFFFFF">&nbsp; </td>
</tr>
</table>
<p><a name="intro"></a><br>
</p>
Initial boost-regex++ release [SVN r7845]
2000-09-26 11:48:28 +00:00
Tweeked regex version number to reference <boost/version.hpp> [SVN r11309]
2001-09-30 10:30:14 +00:00
<hr>
Initial boost-regex++ release [SVN r7845]
2000-09-26 11:48:28 +00:00
Tweeked regex version number to reference <boost/version.hpp> [SVN r11309]
2001-09-30 10:30:14 +00:00
<p><i>Copyright</i> <a href="mailto:John_Maddock@compuserve.com"><i>Dr
John Maddock</i></a> <i>1998-2000 all rights reserved.</i> </p>
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