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strftime_mochalua.txt
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strftime_mochalua.txt
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https://github.com/rzel/mochalua/blob/master/Mochalua/src/com/groundspeak/mochalua/LuaOSLib.java
public static final class os_date implements JavaFunction {
private void setfield ( lua_State thread, String key, int value ) {
LuaAPI.lua_pushinteger ( thread, value );
LuaAPI.lua_setfield ( thread, -2, key );
}
public int Call ( lua_State thread ) {
int si = 0;
String s = LuaAPI.luaL_optstring ( thread, 1, "%c" );
//long t = luaL_opt( thread, ( long )LuaAPI.luaL_checknumber, 2, );
long t = LuaAPI.lua_isnoneornil ( thread, 2 ) ? ( long ) Calendar.getInstance ().getTime ().getTime () : ( long ) LuaAPI.luaL_checknumber ( thread, 2 );
Calendar calendar = null;
if ( s.charAt ( si ) == '!' ) // UTC?
{
calendar = Calendar.getInstance ( TimeZone.getTimeZone ( "UTC" ) );
si ++; // skip `!'
}
else {
calendar = Calendar.getInstance ( TimeZone.getTimeZone ( "GMT" ) );
}
if ( calendar == null ) // invalid calendar?
{
LuaAPI.lua_pushnil ( thread );
}
else if ( s.substring ( si, 2 + si ).equals ( "*t" ) ) {
LuaAPI.lua_createtable ( thread, 0, 8 ); // 9 = number of fields
setfield ( thread, "sec", calendar.get ( Calendar.SECOND ) );
setfield ( thread, "min", calendar.get ( Calendar.MINUTE ) );
setfield ( thread, "hour", calendar.get ( Calendar.HOUR ) );
setfield ( thread, "day", calendar.get ( Calendar.DAY_OF_MONTH ) );
setfield ( thread, "month", calendar.get ( Calendar.MONTH ) + 1 );
setfield ( thread, "year", calendar.get ( Calendar.YEAR ) );
setfield ( thread, "wday", calendar.get ( Calendar.DAY_OF_WEEK ) - 1 );
int dayOfTheYear = getDayOfYear ( calendar );
setfield ( thread, "yday", dayOfTheYear );
//LuaAPI.setboolfield( thread, "isdst", calendar.get( Calendar. ) ); // FIXME:
}
else {
char cc;
luaL_Buffer b = new luaL_Buffer ();
LuaAPI.luaL_buffinit ( thread, b );
int stringIndex;
int strLen = s.length ();
for ( stringIndex = 0; stringIndex < strLen; stringIndex ++ ) {
if ( s.charAt ( stringIndex ) != '%' || s.charAt ( stringIndex + 1 ) == '\0' ) /* no conversion specifier? */ {
LuaAPI.luaL_addchar ( b, s.charAt ( stringIndex ) );
}
else {
cc = s.charAt ( ++ stringIndex );
StringBuffer buff = new StringBuffer ();
strftime ( buff, cc, calendar );
LuaAPI.luaL_addlstring ( b, buff.toString (), buff.length () );
}
}
LuaAPI.luaL_pushresult ( b );
}
return 1;
}
}
private static int getDayOfYear ( Calendar cal ) {
Calendar calendar2 = Calendar.getInstance ();
calendar2.setTime ( cal.getTime () );
calendar2.set ( Calendar.MONTH, 0 );
calendar2.set ( Calendar.DAY_OF_MONTH, 1 );
long diff = ( Calendar.getInstance ().getTime ().getTime () - calendar2.getTime ().getTime () );
long f = diff;
double g = ( double ) diff / ( double ) ( 1000 * 24 * 60 * 60 );
Double d = new Double ( g );
if ( d.doubleValue () - d.intValue () != 0 ) {
return d.intValue () + 1;
}
else {
return d.intValue ();
}
}
private static int strftime ( StringBuffer sb, char format, Calendar cal ) {
switch ( format ) {
case 'a':
{
int dayOfMonth = cal.get ( Calendar.DAY_OF_WEEK );
switch ( dayOfMonth ) {
case Calendar.MONDAY:
{
sb.append ( "Mon" );
}
break;
case Calendar.TUESDAY:
{
sb.append ( "Tue" );
}
break;
case Calendar.WEDNESDAY:
{
sb.append ( "Wed" );
}
break;
case Calendar.THURSDAY:
{
sb.append ( "Thu" );
}
break;
case Calendar.FRIDAY:
{
sb.append ( "Fri" );
}
break;
case Calendar.SATURDAY:
{
sb.append ( "Sat" );
}
break;
case Calendar.SUNDAY:
{
sb.append ( "Sun" );
}
break;
}
}
break;
case 'A':
{
int dayOfMonth = cal.get ( Calendar.DAY_OF_WEEK );
switch ( dayOfMonth ) {
case Calendar.MONDAY:
{
sb.append ( "Monday" );
}
break;
case Calendar.TUESDAY:
{
sb.append ( "Tuesday" );
}
break;
case Calendar.WEDNESDAY:
{
sb.append ( "Wednesday" );
}
break;
case Calendar.THURSDAY:
{
sb.append ( "Thursday" );
}
break;
case Calendar.FRIDAY:
{
sb.append ( "Friday" );
}
break;
case Calendar.SATURDAY:
{
sb.append ( "Satyrday" );
}
break;
case Calendar.SUNDAY:
{
sb.append ( "Sunday" );
}
break;
}
}
break;
case 'b':
{
int month = cal.get ( Calendar.MONTH );
switch ( month ) {
case Calendar.JANUARY:
{
sb.append ( "Jan" );
}
break;
case Calendar.FEBRUARY:
{
sb.append ( "Feb" );
}
break;
case Calendar.MARCH:
{
sb.append ( "Mar" );
}
break;
case Calendar.APRIL:
{
sb.append ( "Apr" );
}
break;
case Calendar.MAY:
{
sb.append ( "May" );
}
break;
case Calendar.JUNE:
{
sb.append ( "Jun" );
}
break;
case Calendar.JULY:
{
sb.append ( "Jul" );
}
break;
case Calendar.AUGUST:
{
sb.append ( "Aug" );
}
break;
case Calendar.SEPTEMBER:
{
sb.append ( "Sep" );
}
break;
case Calendar.OCTOBER:
{
sb.append ( "Oct" );
}
break;
case Calendar.NOVEMBER:
{
sb.append ( "Nov" );
}
break;
case Calendar.DECEMBER:
{
sb.append ( "Dec" );
}
break;
}
}
break;
case 'B':
{
int month = cal.get ( Calendar.MONTH );
switch ( month ) {
case Calendar.JANUARY:
{
sb.append ( "January" );
}
break;
case Calendar.FEBRUARY:
{
sb.append ( "February" );
}
break;
case Calendar.MARCH:
{
sb.append ( "March" );
}
break;
case Calendar.APRIL:
{
sb.append ( "April" );
}
break;
case Calendar.MAY:
{
sb.append ( "May" );
}
break;
case Calendar.JUNE:
{
sb.append ( "June" );
}
break;
case Calendar.JULY:
{
sb.append ( "July" );
}
break;
case Calendar.AUGUST:
{
sb.append ( "August" );
}
break;
case Calendar.SEPTEMBER:
{
sb.append ( "September" );
}
break;
case Calendar.OCTOBER:
{
sb.append ( "October" );
}
break;
case Calendar.NOVEMBER:
{
sb.append ( "November" );
}
break;
case Calendar.DECEMBER:
{
sb.append ( "December" );
}
break;
}
}
break;
case 'c':
{
sb.append ( cal.getTime ().toString () );
}
break;
case 'd':
{
sb.append ( cal.get ( Calendar.DAY_OF_MONTH ) );
}
break;
case 'H':
{
sb.append ( cal.get ( Calendar.HOUR_OF_DAY ) );
}
break;
case 'I':
{
sb.append ( cal.get ( Calendar.HOUR ) );
}
break;
case 'j':
{
sb.append ( getDayOfYear ( cal ) );
}
break;
case 'm':
{
sb.append ( ( cal.get ( Calendar.MONTH ) + 1 ) );
}
break;
case 'M':
{
sb.append ( cal.get ( Calendar.MINUTE ) );
}
break;
case 'p':
{
sb.append ( ( cal.get ( Calendar.AM_PM ) == Calendar.AM ) ? "AM" : "PM" );
}
break;
case 'S':
{
sb.append ( cal.get ( Calendar.SECOND ) );
}
break;
case 'U':
{
sb.append ( getWeekOfYear ( cal, true ) );
}
break;
case 'w':
{
sb.append ( ( cal.get ( Calendar.DAY_OF_WEEK ) - 1 ) );
}
break;
case 'W':
{
sb.append ( getWeekOfYear ( cal, false ) );
}
break;
case 'x':
{
sb.append ( cal.get ( Calendar.MONTH ) );
sb.append ( "/" );
sb.append ( cal.get ( Calendar.DAY_OF_MONTH ) );
sb.append ( "/" );
String str = "" + cal.get ( Calendar.YEAR );
sb.append ( str.substring ( 2, str.length () ) );
}
break;
case 'X':
{
sb.append ( cal.get ( Calendar.HOUR_OF_DAY ) );
sb.append ( ":" );
sb.append ( cal.get ( Calendar.MINUTE ) );
sb.append ( ":" );
sb.append ( cal.get ( Calendar.SECOND ) );
}
break;
case 'y':
{
String str = "" + cal.get ( Calendar.YEAR );
sb.append ( str.substring ( 2, str.length () ) );
}
break;
case 'Y':
{
sb.append ( cal.get ( Calendar.YEAR ) );
}
break;
case 'Z':
{
sb.append ( cal.getTimeZone ().getID () );
}
break;
}
return 1;
}