312 lines
7.6 KiB
C
312 lines
7.6 KiB
C
/***************************************************************************
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vb.c
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(c) 2000-2017 Benoît Minisini <benoit.minisini@gambas-basic.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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***************************************************************************/
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#define __VB_C
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#include "vb.h"
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#include "vbdate.h"
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#include <stdio.h>
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#ifdef OS_CYGWIN
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#include <string.h>
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#else
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#include <strings.h>
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#endif
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#include <math.h>
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BEGIN_METHOD(CVB_val, GB_STRING str)
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GB_VALUE result;
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GB.NumberFromString(GB_NB_READ_ALL | GB_NB_READ_HEX_BIN, STRING(str), LENGTH(str), &result);
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if (result.type == GB_T_INTEGER)
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GB.ReturnInteger(((GB_INTEGER *)(void *)&result)->value);
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if (result.type == GB_T_LONG)
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GB.ReturnLong(((GB_LONG *)(void *)&result)->value);
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else if (result.type == GB_T_FLOAT)
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GB.ReturnFloat(((GB_FLOAT *)(void *)&result)->value);
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else
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GB.ReturnInteger(0);
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GB.ReturnConvVariant();
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END_METHOD
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/* val should be GB_VARIANT. This is just a trick, so that
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I can use STRING() and LENGTH() macros just after having
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converted val to a string. Yes, I know... Horrible.
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*/
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BEGIN_METHOD(CVB_str, GB_STRING val)
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GB.Conv((GB_VALUE *)(void *)ARG(val), GB_T_STRING);
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GB.ReturnNewString(STRING(val), LENGTH(val));
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END_METHOD
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BEGIN_METHOD(CVB_Left, GB_STRING val;GB_INTEGER Count;)
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if (VARG(Count)<=0)
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{
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GB.Error("Invalid parameter");
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return;
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}
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if ( LENGTH(val)<=VARG(Count) )
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{
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GB.ReturnNewString(STRING(val), LENGTH(val));
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return;
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}
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GB.ReturnNewString(STRING(val), VARG(Count));
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END_METHOD
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BEGIN_METHOD(CVB_Right, GB_STRING val;GB_INTEGER Count;)
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if (VARG(Count)<=0)
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{
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GB.Error("Invalid parameter");
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return;
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}
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if ( LENGTH(val)<=VARG(Count) )
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{
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GB.ReturnNewString(STRING(val), LENGTH(val));
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return;
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}
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GB.ReturnNewString(STRING(val)+(LENGTH(val)-VARG(Count)), VARG(Count));
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END_METHOD
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BEGIN_METHOD(CVB_Mid, GB_STRING val;GB_INTEGER Start;GB_INTEGER Count;)
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int count;
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if (VARG(Count)<=0)
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{
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GB.Error("Invalid parameter");
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return;
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}
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if (!MISSING (Count) )
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{
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if (VARG(Count)<=0)
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{
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GB.Error("Invalid parameter");
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return;
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}
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count=VARG(Count);
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}
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else
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count=LENGTH(val);
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if ( VARG(Start)>LENGTH(val) )
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GB.ReturnNewString(NULL,0);
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if ( ( LENGTH(val)-VARG(Start) ) <= count ) count=LENGTH(val)-VARG(Start)+1;
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GB.ReturnNewString(STRING(val)+VARG(Start)-1, count );
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END_METHOD
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BEGIN_METHOD(CVB_DateAdd, GB_STRING period;GB_INTEGER interval; GB_DATE Date)
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char *Period=NULL;
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int Interval = 0;
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GB_DATE RETURN;
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Period=GB.ToZeroString(ARG(period));
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Interval = VARG(interval);
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RETURN.type = ARG(Date)->type;
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RETURN.value.date = ARG(Date)->value.date;
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RETURN.value.time = ARG(Date)->value.time;
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if (strncasecmp(Period,"yyyy",4) == 0){ //Add Years
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DATE_adjust(&RETURN, 4, Interval);
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}
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else {
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if (strncasecmp(Period,"ww",2)== 0){ //Add weeks
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DATE_adjust(&RETURN, 1, (7 * Interval));
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}
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else {
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switch(Period[0])
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{
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case 's': /* Seconds */
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case 'S':
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DATE_adjust(&RETURN, 2, (1000 * Interval));
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break;
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case 'n': /* Minutes */
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case 'N':
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DATE_adjust(&RETURN, 2, (60000 * Interval));
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break;
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case 'h': /* Hours */
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case 'H':
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DATE_adjust(&RETURN, 2, (3600000 * Interval));
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break;
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case 'd': /* Days */
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case 'D':
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case 'y': /* Day of Year */
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case 'Y':
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DATE_adjust(&RETURN, 1, Interval);
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break;
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case 'w': /* Weekdays : Monday - Friday */
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case 'W':
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DATE_adjust(&RETURN, 3, Interval);
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break;
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case 'm': /* Calendar Months */
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case 'M':
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DATE_adjust(&RETURN, 0, Interval);
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break;
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case 'q': /* Quarters */
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case 'Q':
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DATE_adjust(&RETURN, 0, (3 * Interval));
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break;
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default:
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GB.Error("Invalid date parameter");
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}
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}
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}
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GB.ReturnDate(&RETURN);
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END_METHOD
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BEGIN_METHOD(CVB_DateDiff, GB_STRING period;GB_DATE Date1; GB_DATE Date2)
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GB_DATE Date1, Date2;
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char *Period=NULL;
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int Interval = 0;
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Period=GB.ToZeroString(ARG(period));
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Date1.type = ARG(Date1)->type;
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Date1.value.date = ARG(Date1)->value.date;
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Date1.value.time = ARG(Date1)->value.time;
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Date2.type = ARG(Date2)->type;
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Date2.value.date = ARG(Date2)->value.date;
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Date2.value.time = ARG(Date2)->value.time;
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if (strncasecmp(Period,"yyyy",4) == 0){ //Add Years
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Interval = DATE_diff(&Date1, &Date2, 4);
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}
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else {
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if (strncasecmp(Period,"ww",2)== 0){ //Weeks
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Interval = DATE_diff(&Date1, &Date2, 5);
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}
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else {
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switch(Period[0])
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{
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case 's': /* Seconds */
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case 'S':
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Interval = DATE_diff(&Date1, &Date2, 2)/1000;
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break;
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case 'n': /* Minutes */
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case 'N':
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Interval = DATE_diff(&Date1, &Date2, 2)/60000;
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break;
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case 'h': /* Hours */
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case 'H':
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Interval = DATE_diff(&Date1, &Date2, 2)/3600000;
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break;
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case 'd': /* Days */
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case 'D':
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case 'y': /* Day of Year */
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case 'Y':
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Interval = DATE_diff(&Date1, &Date2, 1);
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break;
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case 'w': /* Weekdays : Monday - Friday */
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case 'W':
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Interval = DATE_diff(&Date1, &Date2, 3);
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break;
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case 'm': /* Calendar Months */
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case 'M':
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Interval = DATE_diff(&Date1, &Date2, 0);
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break;
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case 'q': /* Quarters */
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case 'Q':
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Interval = (DATE_diff(&Date1, &Date2, 0)/3);
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break;
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default:
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GB.Error("Invalid date parameter");
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}
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}
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}
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GB.ReturnInteger(Interval);
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END_METHOD
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BEGIN_METHOD(CVB_Round,GB_FLOAT Number;GB_INTEGER Decimals;)
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double decimals=VARGOPT(Decimals, 0);
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double number=VARG(Number);
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if (decimals < 0) { GB.Error("Invalid argument"); return; }
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#if 0 /* test */
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decimals=exp10(decimals);
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number*=decimals;
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number=round(number);
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number/=decimals;
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#endif
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decimals = pow(10, decimals);
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number *= decimals;
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number = rint(number);
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number /= decimals;
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GB.ReturnFloat(number);
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END_METHOD
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GB_DESC CVbDesc[] =
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{
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GB_DECLARE("Vb", 0), GB_NOT_CREATABLE(),
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GB_STATIC_METHOD("Val", "v", CVB_val, "(String)s"),
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GB_STATIC_METHOD("Str", "s", CVB_str, "(Value)v"),
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GB_STATIC_METHOD("Str$", "s", CVB_str, "(Value)v"),
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GB_STATIC_METHOD("Left", "s", CVB_Left, "(String)s(Count)i"),
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GB_STATIC_METHOD("Left$", "s", CVB_Left, "(String)s(Count)i"),
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GB_STATIC_METHOD("Right", "s", CVB_Right, "(String)s(Count)i"),
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GB_STATIC_METHOD("Right$", "s", CVB_Right, "(String)s(Count)i"),
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GB_STATIC_METHOD("Mid", "s", CVB_Mid, "(String)s(Start)i[(Count)i]"),
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GB_STATIC_METHOD("Mid$", "s", CVB_Mid, "(String)s(Start)i[(Count)i]"),
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GB_STATIC_METHOD("DateAdd", "d", CVB_DateAdd, "(period)s(interval)i(Date)d"),
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GB_STATIC_METHOD("DateDiff", "i", CVB_DateDiff, "(period)s(Date1)d(Date2)d"),
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GB_STATIC_METHOD("Round","f",CVB_Round,"(Number)f[(Decimals)i"),
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//GB_METHOD("Dir", "s", CVB_dir, "(Mask)s[(Attributes)i]"),
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GB_END_DECLARE
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};
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