diff options
Diffstat (limited to 'libxsde/xsde/cxx/parser/non-validating/gyear.cxx')
-rw-r--r-- | libxsde/xsde/cxx/parser/non-validating/gyear.cxx | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/libxsde/xsde/cxx/parser/non-validating/gyear.cxx b/libxsde/xsde/cxx/parser/non-validating/gyear.cxx new file mode 100644 index 0000000..351ac4c --- /dev/null +++ b/libxsde/xsde/cxx/parser/non-validating/gyear.cxx @@ -0,0 +1,115 @@ +// file : xsde/cxx/parser/non-validating/gyear.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/gyear.hxx> +#include <xsde/cxx/parser/non-validating/time-zone.hxx> + +namespace xsde +{ + namespace cxx + { + namespace parser + { + namespace non_validating + { + void gyear_pimpl:: + _pre () + { +#ifdef XSDE_EXCEPTIONS + str_.assign ("", 0); +#else + if (str_.assign ("", 0)) + _sys_error (sys_error::no_memory); +#endif + } + + void gyear_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 + } + } + + gyear gyear_pimpl:: + post_gyear () + { + char* s = str_.data (); + ro_string tmp (s, str_.size ()); + ro_string::size_type n = trim_right (tmp); + + // gyear := [-]CCYY[N]*[Z|(+|-)HH:MM] + // + + int year = 0; + bool zone = false; + short zh, zm; + + if (n >= 4) + { + // Find the end of the year token. + // + ro_string::size_type pos = (s[0] == '-' ? 5 : 4); + for (; pos < n; ++pos) + { + char c = s[pos]; + + if (c == 'Z' || c == '+' || c == '-') + break; + } + + // Parse the time zone first so that we can truncate and + // reuse the string. + // + if (pos < n) + { + bits::parse_time_zone (s + pos, n - pos, zh, zm); + zone = true; + } + + // Parse the year value. + // + 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 ? gyear (year, zh, zm) : gyear (year); + } + } + } + } +} |