| /* |
| * |
| * 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: c_regex_traits.cpp |
| * VERSION: see <boost/version.hpp> |
| * DESCRIPTION: Implements out of line c_regex_traits<char> members |
| */ |
| |
| |
| #define BOOST_REGEX_SOURCE |
| |
| #include <boost/config.hpp> |
| #include <boost/detail/workaround.hpp> |
| |
| #if !BOOST_WORKAROUND(__BORLANDC__, < 0x560) |
| |
| #include <boost/regex/v4/c_regex_traits.hpp> |
| #include <boost/regex/v4/primary_transform.hpp> |
| #include <boost/regex/v4/regex_traits_defaults.hpp> |
| |
| #ifdef BOOST_NO_STDC_NAMESPACE |
| namespace std{ |
| using ::strxfrm; using ::isspace; |
| using ::ispunct; using ::isalpha; |
| using ::isalnum; using ::iscntrl; |
| using ::isprint; using ::isupper; |
| using ::islower; using ::isdigit; |
| using ::isxdigit; using ::strtol; |
| } |
| #endif |
| |
| #ifdef BOOST_HAS_ABI_HEADERS |
| # include BOOST_ABI_PREFIX |
| #endif |
| |
| namespace boost{ |
| |
| c_regex_traits<char>::string_type BOOST_REGEX_CALL c_regex_traits<char>::transform(const char* p1, const char* p2) |
| { |
| std::string result(10, ' '); |
| std::size_t s = result.size(); |
| std::size_t r; |
| std::string src(p1, p2); |
| while(s < (r = std::strxfrm(&*result.begin(), src.c_str(), s))) |
| { |
| result.append(r - s + 3, ' '); |
| s = result.size(); |
| } |
| result.erase(r); |
| return result; |
| } |
| |
| c_regex_traits<char>::string_type BOOST_REGEX_CALL c_regex_traits<char>::transform_primary(const char* p1, const char* p2) |
| { |
| static char s_delim; |
| static const int s_collate_type = ::boost::re_detail::find_sort_syntax(static_cast<c_regex_traits<char>*>(0), &s_delim); |
| std::string result; |
| // |
| // What we do here depends upon the format of the sort key returned by |
| // sort key returned by this->transform: |
| // |
| switch(s_collate_type) |
| { |
| case ::boost::re_detail::sort_C: |
| case ::boost::re_detail::sort_unknown: |
| // the best we can do is translate to lower case, then get a regular sort key: |
| { |
| result.assign(p1, p2); |
| for(std::string::size_type i = 0; i < result.size(); ++i) |
| result[i] = static_cast<char>((std::tolower)(static_cast<unsigned char>(result[i]))); |
| result = transform(&*result.begin(), &*result.begin() + result.size()); |
| break; |
| } |
| case ::boost::re_detail::sort_fixed: |
| { |
| // get a regular sort key, and then truncate it: |
| result = transform(p1, p2); |
| result.erase(s_delim); |
| break; |
| } |
| case ::boost::re_detail::sort_delim: |
| // get a regular sort key, and then truncate everything after the delim: |
| result = transform(p1, p2); |
| if(result.size() && (result[0] == s_delim)) |
| break; |
| std::size_t i; |
| for(i = 0; i < result.size(); ++i) |
| { |
| if(result[i] == s_delim) |
| break; |
| } |
| result.erase(i); |
| break; |
| } |
| if(result.empty()) |
| result = std::string(1, char(0)); |
| return result; |
| } |
| |
| enum |
| { |
| char_class_space=1<<0, |
| char_class_print=1<<1, |
| char_class_cntrl=1<<2, |
| char_class_upper=1<<3, |
| char_class_lower=1<<4, |
| char_class_alpha=1<<5, |
| char_class_digit=1<<6, |
| char_class_punct=1<<7, |
| char_class_xdigit=1<<8, |
| char_class_alnum=char_class_alpha|char_class_digit, |
| char_class_graph=char_class_alnum|char_class_punct, |
| char_class_blank=1<<9, |
| char_class_word=1<<10, |
| char_class_unicode=1<<11, |
| char_class_horizontal=1<<12, |
| char_class_vertical=1<<13 |
| }; |
| |
| c_regex_traits<char>::char_class_type BOOST_REGEX_CALL c_regex_traits<char>::lookup_classname(const char* p1, const char* p2) |
| { |
| static const char_class_type masks[] = |
| { |
| 0, |
| char_class_alnum, |
| char_class_alpha, |
| char_class_blank, |
| char_class_cntrl, |
| char_class_digit, |
| char_class_digit, |
| char_class_graph, |
| char_class_horizontal, |
| char_class_lower, |
| char_class_lower, |
| char_class_print, |
| char_class_punct, |
| char_class_space, |
| char_class_space, |
| char_class_upper, |
| char_class_unicode, |
| char_class_upper, |
| char_class_vertical, |
| char_class_alnum | char_class_word, |
| char_class_alnum | char_class_word, |
| char_class_xdigit, |
| }; |
| |
| int idx = ::boost::re_detail::get_default_class_id(p1, p2); |
| if(idx < 0) |
| { |
| std::string s(p1, p2); |
| for(std::string::size_type i = 0; i < s.size(); ++i) |
| s[i] = static_cast<char>((std::tolower)(static_cast<unsigned char>(s[i]))); |
| idx = ::boost::re_detail::get_default_class_id(&*s.begin(), &*s.begin() + s.size()); |
| } |
| BOOST_ASSERT(std::size_t(idx+1) < sizeof(masks) / sizeof(masks[0])); |
| return masks[idx+1]; |
| } |
| |
| bool BOOST_REGEX_CALL c_regex_traits<char>::isctype(char c, char_class_type mask) |
| { |
| return |
| ((mask & char_class_space) && (std::isspace)(static_cast<unsigned char>(c))) |
| || ((mask & char_class_print) && (std::isprint)(static_cast<unsigned char>(c))) |
| || ((mask & char_class_cntrl) && (std::iscntrl)(static_cast<unsigned char>(c))) |
| || ((mask & char_class_upper) && (std::isupper)(static_cast<unsigned char>(c))) |
| || ((mask & char_class_lower) && (std::islower)(static_cast<unsigned char>(c))) |
| || ((mask & char_class_alpha) && (std::isalpha)(static_cast<unsigned char>(c))) |
| || ((mask & char_class_digit) && (std::isdigit)(static_cast<unsigned char>(c))) |
| || ((mask & char_class_punct) && (std::ispunct)(static_cast<unsigned char>(c))) |
| || ((mask & char_class_xdigit) && (std::isxdigit)(static_cast<unsigned char>(c))) |
| || ((mask & char_class_blank) && (std::isspace)(static_cast<unsigned char>(c)) && !::boost::re_detail::is_separator(c)) |
| || ((mask & char_class_word) && (c == '_')) |
| || ((mask & char_class_vertical) && (::boost::re_detail::is_separator(c) || (c == '\v'))) |
| || ((mask & char_class_horizontal) && (std::isspace)(static_cast<unsigned char>(c)) && !::boost::re_detail::is_separator(c) && (c != '\v')); |
| } |
| |
| c_regex_traits<char>::string_type BOOST_REGEX_CALL c_regex_traits<char>::lookup_collatename(const char* p1, const char* p2) |
| { |
| std::string s(p1, p2); |
| s = ::boost::re_detail::lookup_default_collate_name(s); |
| if(s.empty() && (p2-p1 == 1)) |
| s.append(1, *p1); |
| return s; |
| } |
| |
| int BOOST_REGEX_CALL c_regex_traits<char>::value(char c, int radix) |
| { |
| char b[2] = { c, '\0', }; |
| char* ep; |
| int result = std::strtol(b, &ep, radix); |
| if(ep == b) |
| return -1; |
| return result; |
| } |
| |
| } |
| #ifdef BOOST_HAS_ABI_HEADERS |
| # include BOOST_ABI_SUFFIX |
| #endif |
| |
| #endif |