private void BuildOldDate(String dStr, int first, int len)
{
//int middle = dStr.IndexOf((System.Char) '/', first + 1);
int middle = SupportClass.StringIndexOf(dStr, '/', first + 1);
if (middle > first + 2 && middle < len)
{
try
{
year = Int32.Parse(dStr.Substring(middle + 1)) + 1900;
month = Int32.Parse(dStr.Substring(first + 1, (middle) - (first + 1)));
mday = Int32.Parse(dStr.Substring(0, (first) - (0)));
}
catch (FormatException)
{
year = month = mday = -1;
}
}
}
private void BuildNewDate(String dStr, int first, int len)
{
// find the middle separator
//int middle = dStr.IndexOf((System.Char) '-', first + 1);
int middle = SupportClass.StringIndexOf(dStr, '-', first + 1);
if (middle > first + 2 && middle < len)
{
try
{
// if this date string includes a time...
if (middle + 3 < len && dStr[middle + 3] == 'T')
{
// ... try to parse the time
try
{
ParseTime(dStr.Substring(middle + 4));
}
catch (FitsException)
{
throw new FitsException("Bad time in FITS date string \"" + dStr + "\"");
}
// we got the time; mark the end of the date string
len = middle + 3;
}
// parse date string
year = Int32.Parse(dStr.Substring(0, (first) - (0)));
month = Int32.Parse(dStr.Substring(first + 1, (middle) - (first + 1)));
mday = Int32.Parse(dStr.Substring(middle + 1, (len) - (middle + 1)));
}
catch (FormatException)
{
// yikes, something failed; reset everything
year = month = mday = hour = minute = second = millisecond = -1;
}
}
}
private void ParseTime(String tStr)
{
int first = tStr.IndexOf(':');
if (first < 0)
{
throw new FitsException("Bad time");
}
int len = tStr.Length;
//int middle = tStr.IndexOf((System.Char) ':', first + 1);
int middle = SupportClass.StringIndexOf(tStr, ':', first + 1);
if (middle > first + 2 && middle < len)
{
if (middle + 3 < len && tStr[middle + 3] == '.')
{
double d = Double.Parse(tStr.Substring(middle + 3));
millisecond = (int)(d * 1000);
len = middle + 3;
}
try
{
hour = Int32.Parse(tStr.Substring(0, (first) - (0)));
minute = Int32.Parse(tStr.Substring(first + 1, (middle) - (first + 1)));
second = Int32.Parse(tStr.Substring(middle + 1, (len) - (middle + 1)));
}
catch (FormatException)
{
hour = minute = second = millisecond = -1;
}
}
}
private String HierarchToString()
{
System.Text.StringBuilder b = new System.Text.StringBuilder(80);
int p = 0;
String space = "";
while (p < key.Length)
{
int q = SupportClass.StringIndexOf(key, '.', p);
if (q < 0)
{
b.Append(space + key.Substring(p));
break;
}
else
{
b.Append(space + key.Substring(p, (q) - (p)));
}
space = " ";
p = q + 1;
}
if (val != null || nullable)
{
b.Append("= ");
if (val != null)
{
// Try to align values
int avail = 80 - (b.Length + val.Length);
if (isString)
{
avail -= 2;
}
if (comment != null)
{
avail -= 3 + comment.Length;
}
if (avail > 0 && b.Length < 29)
{
b.Append(space80.Substring(0, (Math.Min(avail, 29 - b.Length)) - (0)));
}
if (isString)
{
b.Append('\'');
}
else if (avail > 0 && val.Length < 10)
{
b.Append(space80.Substring(0, (Math.Min(avail, 10 - val.Length)) - (0)));
}
b.Append(val);
if (isString)
{
b.Append('\'');
}
}
else if (b.Length < 30)
{
// Pad out a null value
b.Append(space80.Substring(0, (30 - b.Length) - (0)));
}
}
if (comment != null)
{
b.Append(" / " + comment);
}
if (b.Length < 80)
{
b.Append(space80.Substring(0, (80 - b.Length) - (0)));
}
String card = new String(b.ToString().ToCharArray());
if (card.Length > 80)
{
card = card.Substring(0, (80) - (0));
}
return(card);
}
/// <summary>Create a HeaderCard from a FITS card image</summary>
/// <param name="card">the 80 character card image</param>
public HeaderCard(String card)
{
key = null;
val = null;
comment = null;
isString = false;
// suggested in .99.2 version
// Truncated String in one argument constructor to
// a maximum of 80 characters.
if (card.Length > 80)
{
card = card.Substring(0, 80);
}
if (FitsFactory.UseHierarch && card.Length > 9 && card.Substring(0, (9) - (0)).Equals("HIERARCH "))
{
HierarchCard(card);
return;
}
// We are going to assume that the value has no blanks in
// it unless it is enclosed in quotes. Also, we assume that
// a / terminates the string (except inside quotes)
// treat short lines as special keywords
if (card.Length < 9)
{
key = card;
return;
}
// extract the key
key = card.Substring(0, (8) - (0)).Trim();
// if it is an empty key, assume the remainder of the card is a comment
if (key.Length == 0)
{
key = "";
comment = card.Substring(8);
return;
}
// change suggested in .97 version:
// Non-key/value pair lines are treated as keyed comments
if (key.Equals("COMMENT") || key.Equals("HISTORY") ||
!card.Substring(8, (10) - (8)).Equals("= "))
{
comment = card.Substring(8).Trim();
return;
}
// extract the value/comment part of the string
String valueAndComment = card.Substring(10).Trim();
// If there is no value/comment part, we are done.
if (valueAndComment.Length == 0)
{
val = "";
return;
}
int vend = -1;
//bool quote = false;
// If we have a ' then find the matching '.
if (valueAndComment[0] == '\'')
{
int offset = 1;
while (offset < valueAndComment.Length)
{
// look for next single-quote character
vend = SupportClass.StringIndexOf(valueAndComment, '\'', offset);
// if the quote character is the last character on the line...
if (vend == valueAndComment.Length - 1)
{
break;
}
// if we did not find a matching single-quote...
if (vend == -1)
{
// pretend this is a comment card
key = null;
comment = card;
return;
}
// if this is not an escaped single-quote, we are done
if (valueAndComment[vend + 1] != '\'')
{
break;
}
// skip past escaped single-quote
offset = vend + 2;
}
// break apart character string
val = valueAndComment.Substring(1, (vend) - (1)).Trim();
if (vend + 1 >= valueAndComment.Length)
{
comment = null;
}
else
{
comment = valueAndComment.Substring(vend + 1).Trim();
if (comment[0] == '/')
{
if (comment.Length > 1)
{
comment = comment.Substring(1);
}
else
{
comment = "";
}
}
if (comment.Length == 0)
{
comment = null;
}
}
isString = true;
}
else
{
// look for a / to terminate the field.
int slashLoc = valueAndComment.IndexOf((System.Char) '/');
if (slashLoc != -1)
{
comment = valueAndComment.Substring(slashLoc + 1).Trim();
val = valueAndComment.Substring(0, (slashLoc) - (0)).Trim();
}
else
{
val = valueAndComment;
}
}
}
