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Diffstat (limited to 'psycopg/typecast_mxdatetime.c')
| -rw-r--r-- | psycopg/typecast_mxdatetime.c | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/psycopg/typecast_mxdatetime.c b/psycopg/typecast_mxdatetime.c deleted file mode 100644 index d308f13..0000000 --- a/psycopg/typecast_mxdatetime.c +++ /dev/null @@ -1,241 +0,0 @@ -/* typecast_mxdatetime.c - date and time typecasting functions to mx types - * - * Copyright (C) 2001-2019 Federico Di Gregorio <fog@debian.org> - * Copyright (C) 2020 The Psycopg Team - * - * This file is part of psycopg. - * - * psycopg2 is free software: you can redistribute it and/or modify it - * under the terms of the GNU Lesser General Public License as published - * by the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * In addition, as a special exception, the copyright holders give - * permission to link this program with the OpenSSL library (or with - * modified versions of OpenSSL that use the same license as OpenSSL), - * and distribute linked combinations including the two. - * - * You must obey the GNU Lesser General Public License in all respects for - * all of the code used other than OpenSSL. - * - * psycopg2 is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public - * License for more details. - */ - -#include "mxDateTime.h" - - -/* Return 0 on success, -1 on failure, but don't set an exception */ - -static int -typecast_mxdatetime_init(void) -{ - if (mxDateTime_ImportModuleAndAPI()) { - Dprintf("typecast_mxdatetime_init: mx.DateTime initialization failed"); - PyErr_Clear(); - return -1; - } - return 0; -} - - -/** DATE - cast a date into mx.DateTime python object **/ - -static PyObject * -typecast_MXDATE_cast(const char *str, Py_ssize_t len, PyObject *curs) -{ - int n, y=0, m=0, d=0; - int hh=0, mm=0, ss=0, us=0, tz=0; - const char *tp = NULL; - - if (str == NULL) { Py_RETURN_NONE; } - - Dprintf("typecast_MXDATE_cast: s = %s", str); - - /* check for infinity */ - if (!strcmp(str, "infinity") || !strcmp(str, "-infinity")) { - if (str[0] == '-') { - return mxDateTime.DateTime_FromDateAndTime(-999998,1,1, 0,0,0); - } - else { - return mxDateTime.DateTime_FromDateAndTime(999999,12,31, 0,0,0); - } - } - - n = typecast_parse_date(str, &tp, &len, &y, &m, &d); - Dprintf("typecast_MXDATE_cast: tp = %p n = %d," - " len = " FORMAT_CODE_PY_SSIZE_T "," - " y = %d, m = %d, d = %d", tp, n, len, y, m, d); - if (n != 3) { - PyErr_SetString(DataError, "unable to parse date"); - return NULL; - } - - if (len > 0) { - n = typecast_parse_time(tp, NULL, &len, &hh, &mm, &ss, &us, &tz); - Dprintf("typecast_MXDATE_cast: n = %d," - " len = " FORMAT_CODE_PY_SSIZE_T "," - " hh = %d, mm = %d, ss = %d, us = %d, tz = %d", - n, len, hh, mm, ss, us, tz); - if (n != 0 && (n < 3 || n > 6)) { - PyErr_SetString(DataError, "unable to parse time"); - return NULL; - } - } - - Dprintf("typecast_MXDATE_cast: fractionary seconds: %lf", - (double)ss + (double)us/(double)1000000.0); - return mxDateTime.DateTime_FromDateAndTime(y, m, d, hh, mm, - (double)ss + (double)us/(double)1000000.0); -} - -/** TIME - parse time into an mx.DateTime object **/ - -static PyObject * -typecast_MXTIME_cast(const char *str, Py_ssize_t len, PyObject *curs) -{ - int n, hh=0, mm=0, ss=0, us=0, tz=0; - - if (str == NULL) { Py_RETURN_NONE; } - - Dprintf("typecast_MXTIME_cast: s = %s", str); - - n = typecast_parse_time(str, NULL, &len, &hh, &mm, &ss, &us, &tz); - Dprintf("typecast_MXTIME_cast: time parsed, %d components", n); - Dprintf("typecast_MXTIME_cast: hh = %d, mm = %d, ss = %d, us = %d", - hh, mm, ss, us); - - if (n < 3 || n > 6) { - PyErr_SetString(DataError, "unable to parse time"); - return NULL; - } - - Dprintf("typecast_MXTIME_cast: fractionary seconds: %lf", - (double)ss + (double)us/(double)1000000.0); - return mxDateTime.DateTimeDelta_FromTime(hh, mm, - (double)ss + (double)us/(double)1000000.0); -} - -/** INTERVAL - parse an interval into an mx.DateTimeDelta **/ - -static PyObject * -typecast_MXINTERVAL_cast(const char *str, Py_ssize_t len, PyObject *curs) -{ - long years = 0, months = 0, days = 0, denominator = 1; - double hours = 0.0, minutes = 0.0, seconds = 0.0, hundredths = 0.0; - double v = 0.0, sign = 1.0; - int part = 0; - - if (str == NULL) { Py_RETURN_NONE; } - - Dprintf("typecast_MXINTERVAL_cast: s = %s", str); - - while (*str) { - switch (*str) { - - case '-': - sign = -1.0; - break; - - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - v = v * 10.0 + (double)(*str - '0'); - Dprintf("typecast_MXINTERVAL_cast: v = %f", v); - if (part == 6){ - denominator *= 10; - Dprintf("typecast_MXINTERVAL_cast: denominator = %ld", - denominator); - } - break; - - case 'y': - if (part == 0) { - years = (long)(v*sign); - str = skip_until_space(str); - Dprintf("typecast_MXINTERVAL_cast: years = %ld, rest = %s", - years, str); - v = 0.0; sign = 1.0; part = 1; - } - break; - - case 'm': - if (part <= 1) { - months = (long)(v*sign); - str = skip_until_space(str); - Dprintf("typecast_MXINTERVAL_cast: months = %ld, rest = %s", - months, str); - v = 0.0; sign = 1.0; part = 2; - } - break; - - case 'd': - if (part <= 2) { - days = (long)(v*sign); - str = skip_until_space(str); - Dprintf("typecast_MXINTERVAL_cast: days = %ld, rest = %s", - days, str); - v = 0.0; sign = 1.0; part = 3; - } - break; - - case ':': - if (part <= 3) { - hours = v; - Dprintf("typecast_MXINTERVAL_cast: hours = %f", hours); - v = 0.0; part = 4; - } - else if (part == 4) { - minutes = v; - Dprintf("typecast_MXINTERVAL_cast: minutes = %f", minutes); - v = 0.0; part = 5; - } - break; - - case '.': - if (part == 5) { - seconds = v; - Dprintf("typecast_MXINTERVAL_cast: seconds = %f", seconds); - v = 0.0; part = 6; - } - break; - - default: - break; - } - - str++; - } - - /* manage last value, be it minutes or seconds or hundredths of a second */ - if (part == 4) { - minutes = v; - Dprintf("typecast_MXINTERVAL_cast: minutes = %f", minutes); - } - else if (part == 5) { - seconds = v; - Dprintf("typecast_MXINTERVAL_cast: seconds = %f", seconds); - } - else if (part == 6) { - hundredths = v; - Dprintf("typecast_MXINTERVAL_cast: hundredths = %f", hundredths); - hundredths = hundredths/denominator; - Dprintf("typecast_MXINTERVAL_cast: fractions = %.20f", hundredths); - } - - /* calculates seconds */ - if (sign < 0.0) { - seconds = - (hundredths + seconds + minutes*60 + hours*3600); - } - else { - seconds += hundredths + minutes*60 + hours*3600; - } - - /* calculates days */ - days += years*365 + months*30; - - Dprintf("typecast_MXINTERVAL_cast: days = %ld, seconds = %f", - days, seconds); - return mxDateTime.DateTimeDelta_FromDaysAndSeconds(days, seconds); -} |