public static TzDbZoneContinuation Parse(Queue <Token> unProcessedTokens, String timeZoneName)
{
try
{
TimeSpan gmtOff = TimeSpanExpression.Parse(unProcessedTokens);
string rules = unProcessedTokens.Dequeue().Value;
TimeZoneAbbreviationFormat format =
TimeZoneAbbreviationFormatExpression.Parse(unProcessedTokens);
// until is optional
TzDbAbstractDateTime until;
TzDbDateTimeExpression.TryParse(unProcessedTokens, out until);
Token endLineToken = unProcessedTokens.Dequeue();
// guard end of line token was present
if (endLineToken.TokenType != TokenType.EndLine)
{
string msg = String.Format(
"received unexpected token type:{0} when token type should have been {1}",
endLineToken.TokenType, TokenType.EndLine);
throw new Exception(msg);
}
return(new TzDbZoneContinuation(gmtOff, rules, format, until));
}
catch (Exception e)
{
throw new Exception("Error occured while parsing zone continuation expression", e);
}
}
public TzDbZoneContinuation(TimeSpan gmtOff, String rules, TimeZoneAbbreviationFormat format,
TzDbAbstractDateTime until = null)
: this()
{
Gmtoff = gmtOff;
Rules = rules;
Format = format;
Until = until;
}
public override string GetTimeZoneAbbreviation(TimeSpan standardOffset, TimeZoneAbbreviationFormat format,
Moment moment)
{
DaylightSavingsRule effectiveRule;
if (TryGetMostRecentDaylightSavingsRule(standardOffset, moment, out effectiveRule))
{
return(String.Format(format.Format, effectiveRule.TimeZoneAbbreviationVariable.Value));
}
return(format.Format);
}
public TimeZoneImplementation(
Moment effectiveTo,
TimeSpan standardUtcOffset,
AbstractDaylightSavingsAdjustment daylightSavingsAdjustment,
TimeZoneAbbreviationFormat timeZoneAbbreviationFormat,
Guid?id = null)
{
EffectiveTo = effectiveTo;
StandardUtcOffset = standardUtcOffset;
DaylightSavingsAdjustment = daylightSavingsAdjustment;
TimeZoneAbbreviationFormat = timeZoneAbbreviationFormat;
Id = id ?? Guid.NewGuid();
}
public static bool TryParse(Queue <Token> unProcessedTokens, out TzDbZone?tzDbZone)
{
// the value of the first token of every link entry is Link
const String linkRegex = "Zone";
if (Regex.IsMatch(unProcessedTokens.Peek().Value, linkRegex))
{
try
{
// dequeue Zone token and discard
unProcessedTokens.Dequeue();
string ianaId = unProcessedTokens.Dequeue().Value;
TimeSpan gmtOff = TimeSpanExpression.Parse(unProcessedTokens);
string rules = unProcessedTokens.Dequeue().Value;
TimeZoneAbbreviationFormat format = TimeZoneAbbreviationFormatExpression.Parse(unProcessedTokens);
// until is optional
TzDbAbstractDateTime until;
TzDbDateTimeExpression.TryParse(unProcessedTokens, out until);
tzDbZone = new TzDbZone(gmtOff, rules, format, ianaId, until);
Token endLineToken = unProcessedTokens.Dequeue();
// guard end of line token was present
if (endLineToken.TokenType != TokenType.EndLine)
{
string msg = String.Format(
"received unexpected token type:{0} when token type should have been {1}",
endLineToken.TokenType, TokenType.EndLine);
throw new Exception(msg);
}
return(true);
}
catch (Exception e)
{
throw new Exception("Error occured while parsing zone expression", e);
}
}
tzDbZone = null;
return(false);
}
public override string GetTimeZoneAbbreviation(TimeSpan standardOffset, TimeZoneAbbreviationFormat format,
Moment moment)
{
return(String.Format(format.Format));
}
public abstract String GetTimeZoneAbbreviation(TimeSpan standardOffset, TimeZoneAbbreviationFormat format,
Moment moment);
