+/*

+ *

+ * Copyright (c) 2004

+ * John Maddock

+ *

+ * Use, modification and distribution are subject to the

+ * Boost Software License, Version 1.0. (See accompanying file

+ * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

+ *

+ */

+

+ /*

+ * LOCATION: see http://www.boost.org for most recent version.

+ * FILE icu.cpp

+ * VERSION see <boost/version.hpp>

+ * DESCRIPTION: Unicode regular expressions on top of the ICU Library.

+ */

+#define BOOST_REGEX_SOURCE

+

+#include <boost/regex/config.hpp>

+#ifdef BOOST_HAS_ICU

+#define BOOST_REGEX_ICU_INSTANTIATE

+#include <boost/regex/icu.hpp>

+

+namespace boost{

+

+namespace re_detail{

+

+icu_regex_traits_implementation::string_type icu_regex_traits_implementation::do_transform(const char_type* p1, const char_type* p2, const U_NAMESPACE_QUALIFIER Collator* pcoll) const

+{

+ // TODO make thread safe!!!! :

+ typedef u32_to_u16_iterator<const char_type*, ::UChar> itt;

+ itt i(p1), j(p2);

+#ifndef BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS

+ std::vector< ::UChar> t(i, j);

+#else

+ std::vector< ::UChar> t;

+ while(i != j)

+ t.push_back(*i++);

+#endif

+ ::uint8_t result[100];

+ ::int32_t len;

+ if(t.size())

+ len = pcoll->getSortKey(&*t.begin(), static_cast< ::int32_t>(t.size()), result, sizeof(result));

+ else

+ len = pcoll->getSortKey(static_cast<UChar const*>(0), static_cast< ::int32_t>(0), result, sizeof(result));

+ if(std::size_t(len) > sizeof(result))

+ {

+ scoped_array< ::uint8_t> presult(new ::uint8_t[len+1]);

+ if(t.size())

+ len = pcoll->getSortKey(&*t.begin(), static_cast< ::int32_t>(t.size()), presult.get(), len+1);

+ else

+ len = pcoll->getSortKey(static_cast<UChar const*>(0), static_cast< ::int32_t>(0), presult.get(), len+1);

+ if((0 == presult[len-1]) && (len > 1))

+ --len;

+#ifndef BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS

+ return string_type(presult.get(), presult.get()+len);

+#else

+ string_type sresult;

+ ::uint8_t const* ia = presult.get();

+ ::uint8_t const* ib = presult.get()+len;

+ while(ia != ib)

+ sresult.push_back(*ia++);

+ return sresult;

+#endif

+ }

+ if((0 == result[len-1]) && (len > 1))

+ --len;

+#ifndef BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS

+ return string_type(result, result+len);

+#else

+ string_type sresult;

+ ::uint8_t const* ia = result;

+ ::uint8_t const* ib = result+len;

+ while(ia != ib)

+ sresult.push_back(*ia++);

+ return sresult;

+#endif

+}

+

+}

+

+icu_regex_traits::size_type icu_regex_traits::length(const char_type* p)

+{

+ size_type result = 0;

+ while(*p)

+ {

+ ++p;

+ ++result;

+ }

+ return result;

+}

+

+//

+// define our bitmasks:

+//

+const icu_regex_traits::char_class_type icu_regex_traits::mask_blank = icu_regex_traits::char_class_type(1) << offset_blank;

+const icu_regex_traits::char_class_type icu_regex_traits::mask_space = icu_regex_traits::char_class_type(1) << offset_space;

+const icu_regex_traits::char_class_type icu_regex_traits::mask_xdigit = icu_regex_traits::char_class_type(1) << offset_xdigit;

+const icu_regex_traits::char_class_type icu_regex_traits::mask_underscore = icu_regex_traits::char_class_type(1) << offset_underscore;

+const icu_regex_traits::char_class_type icu_regex_traits::mask_unicode = icu_regex_traits::char_class_type(1) << offset_unicode;

+const icu_regex_traits::char_class_type icu_regex_traits::mask_any = icu_regex_traits::char_class_type(1) << offset_any;

+const icu_regex_traits::char_class_type icu_regex_traits::mask_ascii = icu_regex_traits::char_class_type(1) << offset_ascii;

+

+icu_regex_traits::char_class_type icu_regex_traits::lookup_icu_mask(const ::UChar32* p1, const ::UChar32* p2)

+{

+ static const ::UChar32 prop_name_table[] = {

+ /* any */ 'a', 'n', 'y',

+ /* ascii */ 'a', 's', 'c', 'i', 'i',

+ /* assigned */ 'a', 's', 's', 'i', 'g', 'n', 'e', 'd',

+ /* c* */ 'c', '*',

+ /* cc */ 'c', 'c',

+ /* cf */ 'c', 'f',

+ /* closepunctuation */ 'c', 'l', 'o', 's', 'e', 'p', 'u', 'n', 'c', 't', 'u', 'a', 't', 'i', 'o', 'n',

+ /* cn */ 'c', 'n',

+ /* co */ 'c', 'o',

+ /* connectorpunctuation */ 'c', 'o', 'n', 'n', 'e', 'c', 't', 'o', 'r', 'p', 'u', 'n', 'c', 't', 'u', 'a', 't', 'i', 'o', 'n',

+ /* control */ 'c', 'o', 'n', 't', 'r', 'o', 'l',

+ /* cs */ 'c', 's',

+ /* currencysymbol */ 'c', 'u', 'r', 'r', 'e', 'n', 'c', 'y', 's', 'y', 'm', 'b', 'o', 'l',

+ /* dashpunctuation */ 'd', 'a', 's', 'h', 'p', 'u', 'n', 'c', 't', 'u', 'a', 't', 'i', 'o', 'n',

+ /* decimaldigitnumber */ 'd', 'e', 'c', 'i', 'm', 'a', 'l', 'd', 'i', 'g', 'i', 't', 'n', 'u', 'm', 'b', 'e', 'r',

+ /* enclosingmark */ 'e', 'n', 'c', 'l', 'o', 's', 'i', 'n', 'g', 'm', 'a', 'r', 'k',

+ /* finalpunctuation */ 'f', 'i', 'n', 'a', 'l', 'p', 'u', 'n', 'c', 't', 'u', 'a', 't', 'i', 'o', 'n',

+ /* format */ 'f', 'o', 'r', 'm', 'a', 't',

+ /* initialpunctuation */ 'i', 'n', 'i', 't', 'i', 'a', 'l', 'p', 'u', 'n', 'c', 't', 'u', 'a', 't', 'i', 'o', 'n',

+ /* l* */ 'l', '*',

+ /* letter */ 'l', 'e', 't', 't', 'e', 'r',

+ /* letternumber */ 'l', 'e', 't', 't', 'e', 'r', 'n', 'u', 'm', 'b', 'e', 'r',

+ /* lineseparator */ 'l', 'i', 'n', 'e', 's', 'e', 'p', 'a', 'r', 'a', 't', 'o', 'r',

+ /* ll */ 'l', 'l',

+ /* lm */ 'l', 'm',

+ /* lo */ 'l', 'o',

+ /* lowercaseletter */ 'l', 'o', 'w', 'e', 'r', 'c', 'a', 's', 'e', 'l', 'e', 't', 't', 'e', 'r',

+ /* lt */ 'l', 't',

+ /* lu */ 'l', 'u',

+ /* m* */ 'm', '*',

+ /* mark */ 'm', 'a', 'r', 'k',

+ /* mathsymbol */ 'm', 'a', 't', 'h', 's', 'y', 'm', 'b', 'o', 'l',

+ /* mc */ 'm', 'c',

+ /* me */ 'm', 'e',

+ /* mn */ 'm', 'n',

+ /* modifierletter */ 'm', 'o', 'd', 'i', 'f', 'i', 'e', 'r', 'l', 'e', 't', 't', 'e', 'r',

+ /* modifiersymbol */ 'm', 'o', 'd', 'i', 'f', 'i', 'e', 'r', 's', 'y', 'm', 'b', 'o', 'l',

+ /* n* */ 'n', '*',

+ /* nd */ 'n', 'd',

+ /* nl */ 'n', 'l',

+ /* no */ 'n', 'o',

+ /* nonspacingmark */ 'n', 'o', 'n', 's', 'p', 'a', 'c', 'i', 'n', 'g', 'm', 'a', 'r', 'k',

+ /* notassigned */ 'n', 'o', 't', 'a', 's', 's', 'i', 'g', 'n', 'e', 'd',

+ /* number */ 'n', 'u', 'm', 'b', 'e', 'r',

+ /* openpunctuation */ 'o', 'p', 'e', 'n', 'p', 'u', 'n', 'c', 't', 'u', 'a', 't', 'i', 'o', 'n',

+ /* other */ 'o', 't', 'h', 'e', 'r',

+ /* otherletter */ 'o', 't', 'h', 'e', 'r', 'l', 'e', 't', 't', 'e', 'r',

+ /* othernumber */ 'o', 't', 'h', 'e', 'r', 'n', 'u', 'm', 'b', 'e', 'r',

+ /* otherpunctuation */ 'o', 't', 'h', 'e', 'r', 'p', 'u', 'n', 'c', 't', 'u', 'a', 't', 'i', 'o', 'n',

+ /* othersymbol */ 'o', 't', 'h', 'e', 'r', 's', 'y', 'm', 'b', 'o', 'l',

+ /* p* */ 'p', '*',

+ /* paragraphseparator */ 'p', 'a', 'r', 'a', 'g', 'r', 'a', 'p', 'h', 's', 'e', 'p', 'a', 'r', 'a', 't', 'o', 'r',

+ /* pc */ 'p', 'c',

+ /* pd */ 'p', 'd',

+ /* pe */ 'p', 'e',

+ /* pf */ 'p', 'f',

+ /* pi */ 'p', 'i',

+ /* po */ 'p', 'o',

+ /* privateuse */ 'p', 'r', 'i', 'v', 'a', 't', 'e', 'u', 's', 'e',

+ /* ps */ 'p', 's',

+ /* punctuation */ 'p', 'u', 'n', 'c', 't', 'u', 'a', 't', 'i', 'o', 'n',

+ /* s* */ 's', '*',

+ /* sc */ 's', 'c',

+ /* separator */ 's', 'e', 'p', 'a', 'r', 'a', 't', 'o', 'r',

+ /* sk */ 's', 'k',

+ /* sm */ 's', 'm',

+ /* so */ 's', 'o',

+ /* spaceseparator */ 's', 'p', 'a', 'c', 'e', 's', 'e', 'p', 'a', 'r', 'a', 't', 'o', 'r',

+ /* spacingcombiningmark */ 's', 'p', 'a', 'c', 'i', 'n', 'g', 'c', 'o', 'm', 'b', 'i', 'n', 'i', 'n', 'g', 'm', 'a', 'r', 'k',

+ /* surrogate */ 's', 'u', 'r', 'r', 'o', 'g', 'a', 't', 'e',

+ /* symbol */ 's', 'y', 'm', 'b', 'o', 'l',

+ /* titlecase */ 't', 'i', 't', 'l', 'e', 'c', 'a', 's', 'e',

+ /* titlecaseletter */ 't', 'i', 't', 'l', 'e', 'c', 'a', 's', 'e', 'l', 'e', 't', 't', 'e', 'r',

+ /* uppercaseletter */ 'u', 'p', 'p', 'e', 'r', 'c', 'a', 's', 'e', 'l', 'e', 't', 't', 'e', 'r',

+ /* z* */ 'z', '*',

+ /* zl */ 'z', 'l',

+ /* zp */ 'z', 'p',

+ /* zs */ 'z', 's',

+ };

+

+ static const re_detail::character_pointer_range< ::UChar32> range_data[] = {

+ { prop_name_table+0, prop_name_table+3, }, // any

+ { prop_name_table+3, prop_name_table+8, }, // ascii

+ { prop_name_table+8, prop_name_table+16, }, // assigned

+ { prop_name_table+16, prop_name_table+18, }, // c*

+ { prop_name_table+18, prop_name_table+20, }, // cc

+ { prop_name_table+20, prop_name_table+22, }, // cf

+ { prop_name_table+22, prop_name_table+38, }, // closepunctuation

+ { prop_name_table+38, prop_name_table+40, }, // cn

+ { prop_name_table+40, prop_name_table+42, }, // co

+ { prop_name_table+42, prop_name_table+62, }, // connectorpunctuation

+ { prop_name_table+62, prop_name_table+69, }, // control

+ { prop_name_table+69, prop_name_table+71, }, // cs

+ { prop_name_table+71, prop_name_table+85, }, // currencysymbol

+ { prop_name_table+85, prop_name_table+100, }, // dashpunctuation

+ { prop_name_table+100, prop_name_table+118, }, // decimaldigitnumber

+ { prop_name_table+118, prop_name_table+131, }, // enclosingmark

+ { prop_name_table+131, prop_name_table+147, }, // finalpunctuation

+ { prop_name_table+147, prop_name_table+153, }, // format

+ { prop_name_table+153, prop_name_table+171, }, // initialpunctuation

+ { prop_name_table+171, prop_name_table+173, }, // l*

+ { prop_name_table+173, prop_name_table+179, }, // letter

+ { prop_name_table+179, prop_name_table+191, }, // letternumber

+ { prop_name_table+191, prop_name_table+204, }, // lineseparator

+ { prop_name_table+204, prop_name_table+206, }, // ll

+ { prop_name_table+206, prop_name_table+208, }, // lm

+ { prop_name_table+208, prop_name_table+210, }, // lo

+ { prop_name_table+210, prop_name_table+225, }, // lowercaseletter

+ { prop_name_table+225, prop_name_table+227, }, // lt

+ { prop_name_table+227, prop_name_table+229, }, // lu

+ { prop_name_table+229, prop_name_table+231, }, // m*

+ { prop_name_table+231, prop_name_table+235, }, // mark

+ { prop_name_table+235, prop_name_table+245, }, // mathsymbol

+ { prop_name_table+245, prop_name_table+247, }, // mc

+ { prop_name_table+247, prop_name_table+249, }, // me

+ { prop_name_table+249, prop_name_table+251, }, // mn

+ { prop_name_table+251, prop_name_table+265, }, // modifierletter

+ { prop_name_table+265, prop_name_table+279, }, // modifiersymbol

+ { prop_name_table+279, prop_name_table+281, }, // n*

+ { prop_name_table+281, prop_name_table+283, }, // nd

+ { prop_name_table+283, prop_name_table+285, }, // nl

+ { prop_name_table+285, prop_name_table+287, }, // no

+ { prop_name_table+287, prop_name_table+301, }, // nonspacingmark

+ { prop_name_table+301, prop_name_table+312, }, // notassigned

+ { prop_name_table+312, prop_name_table+318, }, // number

+ { prop_name_table+318, prop_name_table+333, }, // openpunctuation

+ { prop_name_table+333, prop_name_table+338, }, // other

+ { prop_name_table+338, prop_name_table+349, }, // otherletter

+ { prop_name_table+349, prop_name_table+360, }, // othernumber

+ { prop_name_table+360, prop_name_table+376, }, // otherpunctuation

+ { prop_name_table+376, prop_name_table+387, }, // othersymbol

+ { prop_name_table+387, prop_name_table+389, }, // p*

+ { prop_name_table+389, prop_name_table+407, }, // paragraphseparator

+ { prop_name_table+407, prop_name_table+409, }, // pc

+ { prop_name_table+409, prop_name_table+411, }, // pd

+ { prop_name_table+411, prop_name_table+413, }, // pe

+ { prop_name_table+413, prop_name_table+415, }, // pf

+ { prop_name_table+415, prop_name_table+417, }, // pi

+ { prop_name_table+417, prop_name_table+419, }, // po

+ { prop_name_table+419, prop_name_table+429, }, // privateuse

+ { prop_name_table+429, prop_name_table+431, }, // ps

+ { prop_name_table+431, prop_name_table+442, }, // punctuation

+ { prop_name_table+442, prop_name_table+444, }, // s*

+ { prop_name_table+444, prop_name_table+446, }, // sc

+ { prop_name_table+446, prop_name_table+455, }, // separator

+ { prop_name_table+455, prop_name_table+457, }, // sk

+ { prop_name_table+457, prop_name_table+459, }, // sm

+ { prop_name_table+459, prop_name_table+461, }, // so

+ { prop_name_table+461, prop_name_table+475, }, // spaceseparator

+ { prop_name_table+475, prop_name_table+495, }, // spacingcombiningmark

+ { prop_name_table+495, prop_name_table+504, }, // surrogate

+ { prop_name_table+504, prop_name_table+510, }, // symbol

+ { prop_name_table+510, prop_name_table+519, }, // titlecase

+ { prop_name_table+519, prop_name_table+534, }, // titlecaseletter

+ { prop_name_table+534, prop_name_table+549, }, // uppercaseletter

+ { prop_name_table+549, prop_name_table+551, }, // z*

+ { prop_name_table+551, prop_name_table+553, }, // zl

+ { prop_name_table+553, prop_name_table+555, }, // zp

+ { prop_name_table+555, prop_name_table+557, }, // zs

+ };

+

+ static const icu_regex_traits::char_class_type icu_class_map[] = {

+ icu_regex_traits::mask_any, // any

+ icu_regex_traits::mask_ascii, // ascii

+ (0x3FFFFFFFu) & ~(U_GC_CN_MASK), // assigned

+ U_GC_C_MASK, // c*

+ U_GC_CC_MASK, // cc

+ U_GC_CF_MASK, // cf

+ U_GC_PE_MASK, // closepunctuation

+ U_GC_CN_MASK, // cn

+ U_GC_CO_MASK, // co

+ U_GC_PC_MASK, // connectorpunctuation

+ U_GC_CC_MASK, // control

+ U_GC_CS_MASK, // cs

+ U_GC_SC_MASK, // currencysymbol

+ U_GC_PD_MASK, // dashpunctuation

+ U_GC_ND_MASK, // decimaldigitnumber

+ U_GC_ME_MASK, // enclosingmark

+ U_GC_PF_MASK, // finalpunctuation

+ U_GC_CF_MASK, // format

+ U_GC_PI_MASK, // initialpunctuation

+ U_GC_L_MASK, // l*

+ U_GC_L_MASK, // letter

+ U_GC_NL_MASK, // letternumber

+ U_GC_ZL_MASK, // lineseparator

+ U_GC_LL_MASK, // ll

+ U_GC_LM_MASK, // lm

+ U_GC_LO_MASK, // lo

+ U_GC_LL_MASK, // lowercaseletter

+ U_GC_LT_MASK, // lt

+ U_GC_LU_MASK, // lu

+ U_GC_M_MASK, // m*

+ U_GC_M_MASK, // mark

+ U_GC_SM_MASK, // mathsymbol

+ U_GC_MC_MASK, // mc

+ U_GC_ME_MASK, // me

+ U_GC_MN_MASK, // mn

+ U_GC_LM_MASK, // modifierletter

+ U_GC_SK_MASK, // modifiersymbol

+ U_GC_N_MASK, // n*

+ U_GC_ND_MASK, // nd

+ U_GC_NL_MASK, // nl

+ U_GC_NO_MASK, // no

+ U_GC_MN_MASK, // nonspacingmark

+ U_GC_CN_MASK, // notassigned

+ U_GC_N_MASK, // number

+ U_GC_PS_MASK, // openpunctuation

+ U_GC_C_MASK, // other

+ U_GC_LO_MASK, // otherletter

+ U_GC_NO_MASK, // othernumber

+ U_GC_PO_MASK, // otherpunctuation

+ U_GC_SO_MASK, // othersymbol

+ U_GC_P_MASK, // p*

+ U_GC_ZP_MASK, // paragraphseparator

+ U_GC_PC_MASK, // pc

+ U_GC_PD_MASK, // pd

+ U_GC_PE_MASK, // pe

+ U_GC_PF_MASK, // pf

+ U_GC_PI_MASK, // pi

+ U_GC_PO_MASK, // po

+ U_GC_CO_MASK, // privateuse

+ U_GC_PS_MASK, // ps

+ U_GC_P_MASK, // punctuation

+ U_GC_S_MASK, // s*

+ U_GC_SC_MASK, // sc

+ U_GC_Z_MASK, // separator

+ U_GC_SK_MASK, // sk

+ U_GC_SM_MASK, // sm

+ U_GC_SO_MASK, // so

+ U_GC_ZS_MASK, // spaceseparator

+ U_GC_MC_MASK, // spacingcombiningmark

+ U_GC_CS_MASK, // surrogate

+ U_GC_S_MASK, // symbol

+ U_GC_LT_MASK, // titlecase

+ U_GC_LT_MASK, // titlecaseletter

+ U_GC_LU_MASK, // uppercaseletter

+ U_GC_Z_MASK, // z*

+ U_GC_ZL_MASK, // zl

+ U_GC_ZP_MASK, // zp

+ U_GC_ZS_MASK, // zs

+ };

+

+

+ static const re_detail::character_pointer_range< ::UChar32>* ranges_begin = range_data;

+ static const re_detail::character_pointer_range< ::UChar32>* ranges_end = range_data + (sizeof(range_data)/sizeof(range_data[0]));

+

+ re_detail::character_pointer_range< ::UChar32> t = { p1, p2, };

+ const re_detail::character_pointer_range< ::UChar32>* p = std::lower_bound(ranges_begin, ranges_end, t);

+ if((p != ranges_end) && (t == *p))

+ return icu_class_map[p - ranges_begin];

+ return 0;

+}

+

+icu_regex_traits::char_class_type icu_regex_traits::lookup_classname(const char_type* p1, const char_type* p2) const

+{

+ static const char_class_type masks[] =

+ {

+ 0,

+ U_GC_L_MASK | U_GC_ND_MASK,

+ U_GC_L_MASK,

+ mask_blank,

+ U_GC_CC_MASK | U_GC_CF_MASK | U_GC_ZL_MASK | U_GC_ZP_MASK,

+ U_GC_ND_MASK,

+ U_GC_ND_MASK,

+ (0x3FFFFFFFu) & ~(U_GC_CC_MASK | U_GC_CF_MASK | U_GC_CS_MASK | U_GC_CN_MASK | U_GC_Z_MASK),

+ U_GC_LL_MASK,

+ U_GC_LL_MASK,

+ ~(U_GC_C_MASK),

+ U_GC_P_MASK,

+ char_class_type(U_GC_Z_MASK) | mask_space,

+ char_class_type(U_GC_Z_MASK) | mask_space,

+ U_GC_LU_MASK,

+ mask_unicode,

+ U_GC_LU_MASK,

+ char_class_type(U_GC_L_MASK | U_GC_ND_MASK | U_GC_MN_MASK) | mask_underscore,

+ char_class_type(U_GC_L_MASK | U_GC_ND_MASK | U_GC_MN_MASK) | mask_underscore,

+ char_class_type(U_GC_ND_MASK) | mask_xdigit,

+ };

+

+ int id = ::boost::re_detail::get_default_class_id(p1, p2);

+ if(id >= 0)

+ return masks[id+1];

+ char_class_type result = lookup_icu_mask(p1, p2);

+ if(result != 0)

+ return result;

+

+ if(id < 0)

+ {

+ string_type s(p1, p2);

+ string_type::size_type i = 0;

+ while(i < s.size())

+ {

+ s[i] = static_cast<char>((::u_tolower)(s[i]));

+ if(::u_isspace(s[i]) || (s[i] == '-') || (s[i] == '_'))

+ s.erase(s.begin()+i, s.begin()+i+1);

+ else

+ {

+ s[i] = static_cast<char>((::u_tolower)(s[i]));

+ ++i;

+ }

+ }

+ if(s.size())

+ id = ::boost::re_detail::get_default_class_id(&*s.begin(), &*s.begin() + s.size());

+ if(id >= 0)

+ return masks[id+1];

+ if(s.size())

+ result = lookup_icu_mask(&*s.begin(), &*s.begin() + s.size());

+ if(result != 0)

+ return result;

+ }

+ BOOST_ASSERT(std::size_t(id+1) < sizeof(masks) / sizeof(masks[0]));

+ return masks[id+1];

+}

+

+icu_regex_traits::string_type icu_regex_traits::lookup_collatename(const char_type* p1, const char_type* p2) const

+{

+ string_type result;

+ if(std::find_if(p1, p2, std::bind2nd(std::greater< ::UChar32>(), 0x7f)) == p2)

+ {

+#ifndef BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS

+ std::string s(p1, p2);

+#else

+ std::string s;

+ const char_type* p3 = p1;

+ while(p3 != p2)

+ s.append(1, *p3++);

+#endif

+ // Try Unicode name:

+ UErrorCode err = U_ZERO_ERROR;

+ UChar32 c = ::u_charFromName(U_UNICODE_CHAR_NAME, s.c_str(), &err);

+ if(U_SUCCESS(err))

+ {

+ result.push_back(c);

+ return result;

+ }

+ // Try Unicode-extended name:

+ err = U_ZERO_ERROR;

+ c = ::u_charFromName(U_EXTENDED_CHAR_NAME, s.c_str(), &err);

+ if(U_SUCCESS(err))

+ {

+ result.push_back(c);

+ return result;

+ }

+ // try POSIX name:

+ s = ::boost::re_detail::lookup_default_collate_name(s);

+#ifndef BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS

+ result.assign(s.begin(), s.end());

+#else

+ result.clear();

+ std::string::const_iterator si, sj;

+ si = s.begin();

+ sj = s.end();

+ while(si != sj)

+ result.push_back(*si++);

+#endif

+ }

+ if(result.empty() && (p2-p1 == 1))

+ result.push_back(*p1);

+ return result;

+}

+

+bool icu_regex_traits::isctype(char_type c, char_class_type f) const

+{

+ // check for standard catagories first:

+ char_class_type m = char_class_type(1u << u_charType(c));

+ if((m & f) != 0)

+ return true;

+ // now check for special cases:

+ if(((f & mask_blank) != 0) && u_isblank(c))

+ return true;

+ if(((f & mask_space) != 0) && u_isspace(c))

+ return true;

+ if(((f & mask_xdigit) != 0) && (u_digit(c, 16) >= 0))

+ return true;

+ if(((f & mask_unicode) != 0) && (c >= 0x100))

+ return true;

+ if(((f & mask_underscore) != 0) && (c == '_'))

+ return true;

+ if(((f & mask_any) != 0) && (c <= 0x10FFFF))

+ return true;

+ if(((f & mask_ascii) != 0) && (c <= 0x7F))

+ return true;

+ return false;

+}

+

+}

+

+#endif // BOOST_HAS_ICU