0a6b5726ec
back a useless version of the register command (just to prove the command sequence); and added smart XML semantics to the XPath implementation so that nodes can be coerced to values.
107 lines
2.4 KiB
C++
107 lines
2.4 KiB
C++
#ifdef HAVE_LANGINFO_H
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#include <langinfo.h>
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#endif
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#include "times.h"
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namespace ledger {
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ptime now = boost::posix_time::second_clock::universal_time();
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bool day_before_month = false;
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static bool day_before_month_initialized = false;
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ptime parse_datetime(std::istream& in)
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{
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if (! day_before_month_initialized) {
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#ifdef HAVE_NL_LANGINFO
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const char * d_fmt = nl_langinfo(D_FMT);
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if (d_fmt && std::strlen(d_fmt) > 1 && d_fmt[1] == 'd')
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day_before_month = true;
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day_before_month_initialized = true;
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#endif
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}
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#if 1
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return parse_abs_datetime(in);
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#else
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std::string word;
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if (! in.good() || in.eof())
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return ptime();
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in >> word;
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// Grammar
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//
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// datetime: absdate [time]
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// | reldate
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// | datetime preposition
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//
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// reldate: NOW | TODAY | YESTERDAY | TOMORROW
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// | skip_or_quantity specifier
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//
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// skip_or_quantity: skip | quantity
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//
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// skip: LAST | NEXT
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//
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// quantity: INTEGER | CARDINAL
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//
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// specifier: DAY | WEEK | MONTH | QUARTER | YEAR | DECADE
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//
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// preposition: AGO | BACK
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// | BEFORE reldate
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// | SINCE/FROM reldate
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// | UNTIL reldate
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// | AFTER reldate
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if (std::isdigit(word[0])) {
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// This could be any of a variety of formats:
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//
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// 20070702 [TIME]
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// 22072007T171940
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// 22072007T171940-0700
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// 2007-07-02 [TIME]
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// 2007/07/02 [TIME]
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// 2007.07.02 [TIME]
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// 2007-Jul-22 [TIME]
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// 07-22-2007 [TIME]
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// 07-22-07 [TIME]
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// 07/22/2007 [TIME]
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// 07/22/2007 [TIME]
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// 07.22.2007 [TIME]
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// 07.22.07 [TIME]
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// 22-07-2007 [TIME]
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// 22-07-07 [TIME]
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// 22/07/2007 [TIME]
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// 22/07/07 [TIME]
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// 22.07.2007 [TIME]
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// 22.07.07 [TIME]
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// 22 Jul 2007 [TIME]
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// 22 July 2007 [TIME]
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//
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// (NUMBER) (SPECIFIER)
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} else {
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// If there is no starting digit, then it could be any of these:
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//
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// now
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// today
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// yesterday
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// tomorrow
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// (last|next) (week|month|quarter|year|decade)
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// (one|two|three|four|five|six|seven|eight|nine|ten) SPECIFIER
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// PREPOSITION DATE
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//
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// PREPOSITION = (from|after|before|since|until)
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// SPECIFIER = (weeks?|months?|quarters?|years?|decades?) (ago|back)
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//
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//
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}
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#endif
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}
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ptime datetime_range_from_stream(std::istream& in)
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{
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}
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}
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