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author | Remko Tronçon <git@el-tramo.be> | 2010-02-11 12:14:00 (GMT) |
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committer | Remko Tronçon <git@el-tramo.be> | 2010-02-11 12:14:00 (GMT) |
commit | 0efa7c32aaf21a29b42b5926cc116007056843be (patch) | |
tree | 882f663a5dd0e65694bf6077b71086dd77fd7ff8 /3rdParty/Boost/boost/date_time/format_date_parser.hpp | |
parent | 1d20eabbc32274b491b4c2bedf73d19933d97bfd (diff) | |
download | swift-contrib-0efa7c32aaf21a29b42b5926cc116007056843be.zip swift-contrib-0efa7c32aaf21a29b42b5926cc116007056843be.tar.bz2 |
Moved some modules into separate git modules.
Diffstat (limited to '3rdParty/Boost/boost/date_time/format_date_parser.hpp')
m--------- | 3rdParty/Boost | 0 | ||||
-rw-r--r-- | 3rdParty/Boost/boost/date_time/format_date_parser.hpp | 743 |
2 files changed, 0 insertions, 743 deletions
diff --git a/3rdParty/Boost b/3rdParty/Boost new file mode 160000 +Subproject 3bbdbc8cf1996f23d9a366da8bac0f97be6ad79 diff --git a/3rdParty/Boost/boost/date_time/format_date_parser.hpp b/3rdParty/Boost/boost/date_time/format_date_parser.hpp deleted file mode 100644 index 21e4a49..0000000 --- a/3rdParty/Boost/boost/date_time/format_date_parser.hpp +++ /dev/null @@ -1,743 +0,0 @@ - -#ifndef DATE_TIME_FORMAT_DATE_PARSER_HPP__ -#define DATE_TIME_FORMAT_DATE_PARSER_HPP__ - -/* Copyright (c) 2004-2005 CrystalClear Software, Inc. - * Use, modification and distribution is subject to the - * Boost Software License, Version 1.0. (See accompanying - * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) - * Author: Jeff Garland, Bart Garst - * $Date: 2008-11-12 14:37:53 -0500 (Wed, 12 Nov 2008) $ - */ - - -#include "boost/lexical_cast.hpp" -#include "boost/date_time/string_parse_tree.hpp" -#include "boost/date_time/strings_from_facet.hpp" -#include "boost/date_time/special_values_parser.hpp" -#include <string> -#include <vector> -#include <sstream> -#include <iterator> -#ifndef BOOST_NO_STDC_NAMESPACE -# include <cctype> -#else -# include <ctype.h> -#endif - -#ifdef BOOST_NO_STDC_NAMESPACE -namespace std { - using ::isspace; - using ::isdigit; -} -#endif -namespace boost { namespace date_time { - -//! Helper function for parsing fixed length strings into integers -/*! Will consume 'length' number of characters from stream. Consumed - * character are transfered to parse_match_result struct. - * Returns '-1' if no number can be parsed or incorrect number of - * digits in stream. */ -template<typename int_type, typename charT> -inline -int_type -fixed_string_to_int(std::istreambuf_iterator<charT>& itr, - std::istreambuf_iterator<charT>& stream_end, - parse_match_result<charT>& mr, - unsigned int length, - const charT& fill_char) -{ - //typedef std::basic_string<charT> string_type; - unsigned int j = 0; - //string_type s; - while (j < length && itr != stream_end && - (std::isdigit(*itr) || *itr == fill_char)) { - if(*itr == fill_char) { - /* Since a fill_char can be anything, we convert it to a zero. - * lexical_cast will behave predictably when zero is used as fill. */ - mr.cache += ('0'); - } - else { - mr.cache += (*itr); - } - itr++; - j++; - } - int_type i = -1; - // mr.cache will hold leading zeros. size() tells us when input is too short. - if(mr.cache.size() < length) { - return i; - } - try { - i = boost::lexical_cast<int_type>(mr.cache); - }catch(bad_lexical_cast&){ - // we want to return -1 if the cast fails so nothing to do here - } - return i; -} - -//! Helper function for parsing fixed length strings into integers -/*! Will consume 'length' number of characters from stream. Consumed - * character are transfered to parse_match_result struct. - * Returns '-1' if no number can be parsed or incorrect number of - * digits in stream. */ -template<typename int_type, typename charT> -inline -int_type -fixed_string_to_int(std::istreambuf_iterator<charT>& itr, - std::istreambuf_iterator<charT>& stream_end, - parse_match_result<charT>& mr, - unsigned int length) -{ - return fixed_string_to_int<int_type, charT>(itr, stream_end, mr, length, '0'); -} - -//! Helper function for parsing varied length strings into integers -/*! Will consume 'max_length' characters from stream only if those - * characters are digits. Returns '-1' if no number can be parsed. - * Will not parse a number preceeded by a '+' or '-'. */ -template<typename int_type, typename charT> -inline -int_type -var_string_to_int(std::istreambuf_iterator<charT>& itr, - std::istreambuf_iterator<charT>& /* stream_end */, - unsigned int max_length) -{ - typedef std::basic_string<charT> string_type; - unsigned int j = 0; - string_type s; - while ((j < max_length) && std::isdigit(*itr)) { - s += (*itr); - itr++; - j++; - } - int_type i = -1; - if(s.length() != 0) { - i = boost::lexical_cast<int_type>(s); - } - return i; -} - - -//! Class with generic date parsing using a format string -/*! The following is the set of recognized format specifiers - - %a - Short weekday name - - %A - Long weekday name - - %b - Abbreviated month name - - %B - Full month name - - %d - Day of the month as decimal 01 to 31 - - %j - Day of year as decimal from 001 to 366 - - %m - Month name as a decimal 01 to 12 - - %U - Week number 00 to 53 with first Sunday as the first day of week 1? - - %w - Weekday as decimal number 0 to 6 where Sunday == 0 - - %W - Week number 00 to 53 where Monday is first day of week 1 - - %x - facet default date representation - - %y - Year without the century - eg: 04 for 2004 - - %Y - Year with century - - The weekday specifiers (%a and %A) do not add to the date construction, - but they provide a way to skip over the weekday names for formats that - provide them. - - todo -- Another interesting feature that this approach could provide is - an option to fill in any missing fields with the current values - from the clock. So if you have %m-%d the parser would detect - the missing year value and fill it in using the clock. - - todo -- What to do with the %x. %x in the classic facet is just bad... - - */ -template<class date_type, typename charT> -class format_date_parser -{ - public: - typedef std::basic_string<charT> string_type; - typedef std::basic_istringstream<charT> stringstream_type; - typedef std::istreambuf_iterator<charT> stream_itr_type; - typedef typename string_type::const_iterator const_itr; - typedef typename date_type::year_type year_type; - typedef typename date_type::month_type month_type; - typedef typename date_type::day_type day_type; - typedef typename date_type::duration_type duration_type; - typedef typename date_type::day_of_week_type day_of_week_type; - typedef typename date_type::day_of_year_type day_of_year_type; - typedef string_parse_tree<charT> parse_tree_type; - typedef typename parse_tree_type::parse_match_result_type match_results; - typedef std::vector<std::basic_string<charT> > input_collection_type; - - // TODO sv_parser uses its default constructor - write the others - - format_date_parser(const string_type& format_str, - const input_collection_type& month_short_names, - const input_collection_type& month_long_names, - const input_collection_type& weekday_short_names, - const input_collection_type& weekday_long_names) : - m_format(format_str), - m_month_short_names(month_short_names, 1), - m_month_long_names(month_long_names, 1), - m_weekday_short_names(weekday_short_names), - m_weekday_long_names(weekday_long_names) - {} - - format_date_parser(const string_type& format_str, - const std::locale& locale) : - m_format(format_str), - m_month_short_names(gather_month_strings<charT>(locale), 1), - m_month_long_names(gather_month_strings<charT>(locale, false), 1), - m_weekday_short_names(gather_weekday_strings<charT>(locale)), - m_weekday_long_names(gather_weekday_strings<charT>(locale, false)) - {} - - format_date_parser(const format_date_parser<date_type,charT>& fdp) - { - this->m_format = fdp.m_format; - this->m_month_short_names = fdp.m_month_short_names; - this->m_month_long_names = fdp.m_month_long_names; - this->m_weekday_short_names = fdp.m_weekday_short_names; - this->m_weekday_long_names = fdp.m_weekday_long_names; - } - - string_type format() const - { - return m_format; - } - - void format(string_type format_str) - { - m_format = format_str; - } - - void short_month_names(const input_collection_type& month_names) - { - m_month_short_names = parse_tree_type(month_names, 1); - } - void long_month_names(const input_collection_type& month_names) - { - m_month_long_names = parse_tree_type(month_names, 1); - } - void short_weekday_names(const input_collection_type& weekday_names) - { - m_weekday_short_names = parse_tree_type(weekday_names); - } - void long_weekday_names(const input_collection_type& weekday_names) - { - m_weekday_long_names = parse_tree_type(weekday_names); - } - - date_type - parse_date(const string_type& value, - const string_type& format_str, - const special_values_parser<date_type,charT>& sv_parser) const - { - stringstream_type ss(value); - stream_itr_type sitr(ss); - stream_itr_type stream_end; - return parse_date(sitr, stream_end, format_str, sv_parser); - } - - date_type - parse_date(std::istreambuf_iterator<charT>& sitr, - std::istreambuf_iterator<charT>& stream_end, - const special_values_parser<date_type,charT>& sv_parser) const - { - return parse_date(sitr, stream_end, m_format, sv_parser); - } - - /*! Of all the objects that the format_date_parser can parse, only a - * date can be a special value. Therefore, only parse_date checks - * for special_values. */ - date_type - parse_date(std::istreambuf_iterator<charT>& sitr, - std::istreambuf_iterator<charT>& stream_end, - string_type format_str, - const special_values_parser<date_type,charT>& sv_parser) const - { - bool use_current_char = false; - - // skip leading whitespace - while(std::isspace(*sitr) && sitr != stream_end) { ++sitr; } - charT current_char = *sitr; - - short year(0), month(0), day(0), day_of_year(0);// wkday(0); - /* Initialized the following to their minimum values. These intermediate - * objects are used so we get specific exceptions when part of the input - * is unparsable. - * Ex: "205-Jan-15" will throw a bad_year, "2005-Jsn-15"- bad_month, etc.*/ - year_type t_year(1400); - month_type t_month(1); - day_type t_day(1); - day_of_week_type wkday(0); - - - const_itr itr(format_str.begin()); - while (itr != format_str.end() && (sitr != stream_end)) { - if (*itr == '%') { - itr++; - if (*itr != '%') { - switch(*itr) { - case 'a': - { - //this value is just throw away. It could be used for - //error checking potentially, but it isn't helpful in - //actually constructing the date - we just need to get it - //out of the stream - match_results mr = m_weekday_short_names.match(sitr, stream_end); - if(mr.current_match == match_results::PARSE_ERROR) { - // check special_values - if(sv_parser.match(sitr, stream_end, mr)) { - return date_type(static_cast<special_values>(mr.current_match)); - } - } - wkday = mr.current_match; - if (mr.has_remaining()) { - current_char = mr.last_char(); - use_current_char = true; - } - break; - } - case 'A': - { - //this value is just throw away. It could be used for - //error checking potentially, but it isn't helpful in - //actually constructing the date - we just need to get it - //out of the stream - match_results mr = m_weekday_long_names.match(sitr, stream_end); - if(mr.current_match == match_results::PARSE_ERROR) { - // check special_values - if(sv_parser.match(sitr, stream_end, mr)) { - return date_type(static_cast<special_values>(mr.current_match)); - } - } - wkday = mr.current_match; - if (mr.has_remaining()) { - current_char = mr.last_char(); - use_current_char = true; - } - break; - } - case 'b': - { - match_results mr = m_month_short_names.match(sitr, stream_end); - if(mr.current_match == match_results::PARSE_ERROR) { - // check special_values - if(sv_parser.match(sitr, stream_end, mr)) { - return date_type(static_cast<special_values>(mr.current_match)); - } - } - t_month = month_type(mr.current_match); - if (mr.has_remaining()) { - current_char = mr.last_char(); - use_current_char = true; - } - break; - } - case 'B': - { - match_results mr = m_month_long_names.match(sitr, stream_end); - if(mr.current_match == match_results::PARSE_ERROR) { - // check special_values - if(sv_parser.match(sitr, stream_end, mr)) { - return date_type(static_cast<special_values>(mr.current_match)); - } - } - t_month = month_type(mr.current_match); - if (mr.has_remaining()) { - current_char = mr.last_char(); - use_current_char = true; - } - break; - } - case 'd': - { - match_results mr; - day = fixed_string_to_int<short, charT>(sitr, stream_end, mr, 2); - if(day == -1) { - if(sv_parser.match(sitr, stream_end, mr)) { - return date_type(static_cast<special_values>(mr.current_match)); - } - } - t_day = day_type(day); - break; - } - case 'e': - { - match_results mr; - day = fixed_string_to_int<short, charT>(sitr, stream_end, mr, 2, ' '); - if(day == -1) { - if(sv_parser.match(sitr, stream_end, mr)) { - return date_type(static_cast<special_values>(mr.current_match)); - } - } - t_day = day_type(day); - break; - } - case 'j': - { - match_results mr; - day_of_year = fixed_string_to_int<short, charT>(sitr, stream_end, mr, 3); - if(day_of_year == -1) { - if(sv_parser.match(sitr, stream_end, mr)) { - return date_type(static_cast<special_values>(mr.current_match)); - } - } - // these next two lines are so we get an exception with bad input - day_of_year_type t_day_of_year(1); - t_day_of_year = day_of_year_type(day_of_year); - break; - } - case 'm': - { - match_results mr; - month = fixed_string_to_int<short, charT>(sitr, stream_end, mr, 2); - if(month == -1) { - if(sv_parser.match(sitr, stream_end, mr)) { - return date_type(static_cast<special_values>(mr.current_match)); - } - } - t_month = month_type(month); - break; - } - case 'Y': - { - match_results mr; - year = fixed_string_to_int<short, charT>(sitr, stream_end, mr, 4); - if(year == -1) { - if(sv_parser.match(sitr, stream_end, mr)) { - return date_type(static_cast<special_values>(mr.current_match)); - } - } - t_year = year_type(year); - break; - } - case 'y': - { - match_results mr; - year = fixed_string_to_int<short, charT>(sitr, stream_end, mr, 2); - if(year == -1) { - if(sv_parser.match(sitr, stream_end, mr)) { - return date_type(static_cast<special_values>(mr.current_match)); - } - } - year += 2000; //make 2 digit years in this century - t_year = year_type(year); - break; - } - default: - {} //ignore those we don't understand - - }//switch - - } - else { // itr == '%', second consecutive - sitr++; - } - - itr++; //advance past format specifier - } - else { //skip past chars in format and in buffer - itr++; - if (use_current_char) { - use_current_char = false; - current_char = *sitr; - } - else { - sitr++; - } - } - } - - if (day_of_year > 0) { - date_type d(static_cast<unsigned short>(year-1),12,31); //end of prior year - return d + duration_type(day_of_year); - } - - return date_type(t_year, t_month, t_day); // exceptions were thrown earlier - // if input was no good - } - - //! Throws bad_month if unable to parse - month_type - parse_month(std::istreambuf_iterator<charT>& sitr, - std::istreambuf_iterator<charT>& stream_end, - string_type format_str) const - { - match_results mr; - return parse_month(sitr, stream_end, format_str, mr); - } - - //! Throws bad_month if unable to parse - month_type - parse_month(std::istreambuf_iterator<charT>& sitr, - std::istreambuf_iterator<charT>& stream_end, - string_type format_str, - match_results& mr) const - { - bool use_current_char = false; - - // skip leading whitespace - while(std::isspace(*sitr) && sitr != stream_end) { ++sitr; } - charT current_char = *sitr; - - short month(0); - - const_itr itr(format_str.begin()); - while (itr != format_str.end() && (sitr != stream_end)) { - if (*itr == '%') { - itr++; - if (*itr != '%') { - switch(*itr) { - case 'b': - { - mr = m_month_short_names.match(sitr, stream_end); - month = mr.current_match; - if (mr.has_remaining()) { - current_char = mr.last_char(); - use_current_char = true; - } - break; - } - case 'B': - { - mr = m_month_long_names.match(sitr, stream_end); - month = mr.current_match; - if (mr.has_remaining()) { - current_char = mr.last_char(); - use_current_char = true; - } - break; - } - case 'm': - { - month = var_string_to_int<short, charT>(sitr, stream_end, 2); - // var_string_to_int returns -1 if parse failed. That will - // cause a bad_month exception to be thrown so we do nothing here - break; - } - default: - {} //ignore those we don't understand - - }//switch - - } - else { // itr == '%', second consecutive - sitr++; - } - - itr++; //advance past format specifier - } - else { //skip past chars in format and in buffer - itr++; - if (use_current_char) { - use_current_char = false; - current_char = *sitr; - } - else { - sitr++; - } - } - } - - return month_type(month); // throws bad_month exception when values are zero - } - - //! Expects 1 or 2 digits 1-31. Throws bad_day_of_month if unable to parse - day_type - parse_var_day_of_month(std::istreambuf_iterator<charT>& sitr, - std::istreambuf_iterator<charT>& stream_end) const - { - // skip leading whitespace - while(std::isspace(*sitr) && sitr != stream_end) { ++sitr; } - - return day_type(var_string_to_int<short, charT>(sitr, stream_end, 2)); - } - //! Expects 2 digits 01-31. Throws bad_day_of_month if unable to parse - day_type - parse_day_of_month(std::istreambuf_iterator<charT>& sitr, - std::istreambuf_iterator<charT>& stream_end) const - { - // skip leading whitespace - while(std::isspace(*sitr) && sitr != stream_end) { ++sitr; } - - //return day_type(var_string_to_int<short, charT>(sitr, stream_end, 2)); - match_results mr; - return day_type(fixed_string_to_int<short, charT>(sitr, stream_end, mr, 2)); - } - - day_of_week_type - parse_weekday(std::istreambuf_iterator<charT>& sitr, - std::istreambuf_iterator<charT>& stream_end, - string_type format_str) const - { - match_results mr; - return parse_weekday(sitr, stream_end, format_str, mr); - } - day_of_week_type - parse_weekday(std::istreambuf_iterator<charT>& sitr, - std::istreambuf_iterator<charT>& stream_end, - string_type format_str, - match_results& mr) const - { - bool use_current_char = false; - - // skip leading whitespace - while(std::isspace(*sitr) && sitr != stream_end) { ++sitr; } - charT current_char = *sitr; - - short wkday(0); - - const_itr itr(format_str.begin()); - while (itr != format_str.end() && (sitr != stream_end)) { - if (*itr == '%') { - itr++; - if (*itr != '%') { - switch(*itr) { - case 'a': - { - //this value is just throw away. It could be used for - //error checking potentially, but it isn't helpful in - //actually constructing the date - we just need to get it - //out of the stream - mr = m_weekday_short_names.match(sitr, stream_end); - wkday = mr.current_match; - if (mr.has_remaining()) { - current_char = mr.last_char(); - use_current_char = true; - } - break; - } - case 'A': - { - //this value is just throw away. It could be used for - //error checking potentially, but it isn't helpful in - //actually constructing the date - we just need to get it - //out of the stream - mr = m_weekday_long_names.match(sitr, stream_end); - wkday = mr.current_match; - if (mr.has_remaining()) { - current_char = mr.last_char(); - use_current_char = true; - } - break; - } - case 'w': - { - // weekday as number 0-6, Sunday == 0 - wkday = var_string_to_int<short, charT>(sitr, stream_end, 2); - break; - } - default: - {} //ignore those we don't understand - - }//switch - - } - else { // itr == '%', second consecutive - sitr++; - } - - itr++; //advance past format specifier - } - else { //skip past chars in format and in buffer - itr++; - if (use_current_char) { - use_current_char = false; - current_char = *sitr; - } - else { - sitr++; - } - } - } - - return day_of_week_type(wkday); // throws bad_day_of_month exception - // when values are zero - } - - //! throws bad_year if unable to parse - year_type - parse_year(std::istreambuf_iterator<charT>& sitr, - std::istreambuf_iterator<charT>& stream_end, - string_type format_str) const - { - match_results mr; - return parse_year(sitr, stream_end, format_str, mr); - } - - //! throws bad_year if unable to parse - year_type - parse_year(std::istreambuf_iterator<charT>& sitr, - std::istreambuf_iterator<charT>& stream_end, - string_type format_str, - match_results& mr) const - { - bool use_current_char = false; - - // skip leading whitespace - while(std::isspace(*sitr) && sitr != stream_end) { ++sitr; } - charT current_char = *sitr; - - unsigned short year(0); - - const_itr itr(format_str.begin()); - while (itr != format_str.end() && (sitr != stream_end)) { - if (*itr == '%') { - itr++; - if (*itr != '%') { - //match_results mr; - switch(*itr) { - case 'Y': - { - // year from 4 digit string - year = fixed_string_to_int<short, charT>(sitr, stream_end, mr, 4); - break; - } - case 'y': - { - // year from 2 digit string (no century) - year = fixed_string_to_int<short, charT>(sitr, stream_end, mr, 2); - year += 2000; //make 2 digit years in this century - break; - } - default: - {} //ignore those we don't understand - - }//switch - - } - else { // itr == '%', second consecutive - sitr++; - } - - itr++; //advance past format specifier - } - else { //skip past chars in format and in buffer - itr++; - if (use_current_char) { - use_current_char = false; - current_char = *sitr; - } - else { - sitr++; - } - } - } - - return year_type(year); // throws bad_year exception when values are zero - } - - - private: - string_type m_format; - parse_tree_type m_month_short_names; - parse_tree_type m_month_long_names; - parse_tree_type m_weekday_short_names; - parse_tree_type m_weekday_long_names; - -}; - -} } //namespace - -#endif - - - |