diff options
Diffstat (limited to 'libxsde/xsde/cxx/parser/non-validating/date.cxx')
-rw-r--r-- | libxsde/xsde/cxx/parser/non-validating/date.cxx | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/libxsde/xsde/cxx/parser/non-validating/date.cxx b/libxsde/xsde/cxx/parser/non-validating/date.cxx new file mode 100644 index 0000000..0364ac1 --- /dev/null +++ b/libxsde/xsde/cxx/parser/non-validating/date.cxx @@ -0,0 +1,126 @@ +// file : xsde/cxx/parser/non-validating/date.cxx +// author : Boris Kolpackov <boris@codesynthesis.com> +// copyright : Copyright (c) 2005-2009 Code Synthesis Tools CC +// license : GNU GPL v2 + exceptions; see accompanying LICENSE file + +#include <stdlib.h> // strtoul + +#include <xsde/cxx/config.hxx> + +#include <xsde/cxx/parser/non-validating/date.hxx> +#include <xsde/cxx/parser/non-validating/time-zone.hxx> + +namespace xsde +{ + namespace cxx + { + namespace parser + { + namespace non_validating + { + void date_pimpl:: + _pre () + { +#ifdef XSDE_EXCEPTIONS + str_.assign ("", 0); +#else + if (str_.assign ("", 0)) + _sys_error (sys_error::no_memory); +#endif + } + + void date_pimpl:: + _characters (const ro_string& s) + { + if (str_.size () == 0) + { + ro_string tmp (s.data (), s.size ()); + + if (trim_left (tmp) != 0) + { +#ifdef XSDE_EXCEPTIONS + str_.append (tmp.data (), tmp.size ()); +#else + if (str_.append (tmp.data (), tmp.size ())) + _sys_error (sys_error::no_memory); +#endif + } + } + else + { +#ifdef XSDE_EXCEPTIONS + str_.append (s.data (), s.size ()); +#else + if (str_.append (s.data (), s.size ())) + _sys_error (sys_error::no_memory); +#endif + } + } + + date date_pimpl:: + post_date () + { + char* s = str_.data (); + ro_string tmp (s, str_.size ()); + ro_string::size_type n = trim_right (tmp); + + // date := [-]CCYY[N]*-MM-DD[Z|(+|-)HH:MM] + // + + int year = 0; + unsigned short month = 0; + unsigned short day = 0; + bool zone = false; + short zh, zm; + + if (n >= 10) + { + // Find the end of the year token. + // + ro_string::size_type pos = tmp.find ('-', s[0] == '-' ? 5 : 4); + + if (pos != ro_string::npos && (n - pos - 1) >= 5) + { + // Parse the month, day values and time zone first so that we + // can truncate and reuse the string. + // + + // month + // + month = 10 * (s[pos + 1] - '0') + (s[pos + 2] - '0'); + + // day + // + day = 10 * (s[pos + 4] - '0') + (s[pos + 5] - '0'); + + // zone + // + if ((pos + 6) < n) + { + bits::parse_time_zone (s + pos + 6, n - pos - 6, zh, zm); + zone = true; + } + + // year + // + str_.truncate (pos); + + bool neg = (s[0] == '-'); + unsigned long ul = strtoul (neg ? s + 1 : s, 0, 10); + + year = neg + ? (ul == 2147483648UL + ? (-2147483647 - 1) + : -static_cast<int> (ul)) + : static_cast<int> (ul); + } + } + + return zone + ? date (year, month, day, zh, zm) + : date (year, month, day); + } + } + } + } +} |