+++ /dev/null
-/* typecast_mxdatetime.c - date and time typecasting functions to mx types
- *
- * Copyright (C) 2001-2003 Federico Di Gregorio <fog@debian.org>
- *
- * This file is part of the psycopg module.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2,
- * or (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include "mxDateTime.h"
-
-/* the pointer to the mxDateTime API is initialized by the module init code,
- we just need to grab it */
-extern mxDateTimeModule_APIObject *mxDateTimeP;
-
-/** DATE - cast a date into mx.DateTime python object **/
-
-static PyObject *
-typecast_MXDATE_cast(char *str, int len, PyObject *curs)
-{
- int n, y=0, m=0, d=0;
- int hh=0, mm=0, ss=0, us=0, tz=0;
- char *tp = NULL;
-
- if (str == NULL) {Py_INCREF(Py_None); return Py_None;}
-
- Dprintf("typecast_MXDATE_cast: s = %s", str);
-
- /* check for infinity */
- if (!strcmp(str, "infinity") || !strcmp(str, "-infinity")) {
- if (str[0] == '-') {
- return mxDateTimeP->DateTime_FromDateAndTime(-999998,1,1, 0,0,0);
- }
- else {
- return mxDateTimeP->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 = %d, "
- "y = %d, m = %d, d = %d", tp, n, len, y, m, d);
- if (n != 3) {
- PyErr_SetString(DataError, "unable to parse date");
- }
-
- if (len > 0) {
- n = typecast_parse_time(tp, NULL, &len, &hh, &mm, &ss, &us, &tz);
- Dprintf("typecast_MXDATE_cast: n = %d, len = %d, "
- "hh = %d, mm = %d, ss = %d, us = %d, tz = %d",
- n, len, hh, mm, ss, us, tz);
- if (n < 3 || n > 5) {
- PyErr_SetString(DataError, "unable to parse time");
- }
- }
-
- Dprintf("typecast_MXDATE_cast: fractionary seconds: %lf",
- (double)ss + (double)us/(double)1000000.0);
- return mxDateTimeP->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(char *str, int len, PyObject *curs)
-{
- int n, hh=0, mm=0, ss=0, us=0, tz=0;
-
- if (str == NULL) {Py_INCREF(Py_None); return Py_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 > 5) {
- PyErr_SetString(DataError, "unable to parse time");
- return NULL;
- }
-
- Dprintf("typecast_MXTIME_cast: fractionary seconds: %lf",
- (double)ss + (double)us/(double)1000000.0);
- return mxDateTimeP->DateTimeDelta_FromTime(hh, mm,
- (double)ss + (double)us/(double)1000000.0);
-}
-
-/** INTERVAL - parse an interval into an mx.DateTimeDelta **/
-
-static PyObject *
-typecast_MXINTERVAL_cast(char *str, int 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_INCREF(Py_None); return Py_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 + (double)*str - (double)'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 mxDateTimeP->DateTimeDelta_FromDaysAndSeconds(days, seconds);
-}
-
-/* psycopg defaults to using mx types */
-
-#ifdef PSYCOPG_DEFAULT_MXDATETIME
-#define typecast_DATE_cast typecast_MXDATE_cast
-#define typecast_TIME_cast typecast_MXTIME_cast
-#define typecast_INTERVAL_cast typecast_MXINTERVAL_cast
-#define typecast_DATETIME_cast typecast_MXDATE_cast
-#endif
-
git://git.onelab.eu / plcapi.git / blobdiff