private IEnumerable <Token> MatchLocationTimes(string text)
{
var ret = new List <Token>();
if (config.LocationTimeSuffixRegex == null)
{
return(ret);
}
var timeMatch = config.LocationTimeSuffixRegex.Matches(text);
if (timeMatch.Count != 0)
{
var lastMatchIndex = timeMatch[timeMatch.Count - 1].Index;
var matches = config.LocationMatcher.Find(text.Substring(0, lastMatchIndex).ToLowerInvariant());
var locationMatches = MatchingUtil.RemoveSubMatches(matches);
var i = 0;
foreach (Match match in timeMatch)
{
var hasCityBefore = false;
while (i < locationMatches.Count && locationMatches[i].End <= match.Index)
{
hasCityBefore = true;
i++;
if (i == locationMatches.Count)
{
break;
}
}
if (hasCityBefore && locationMatches[i - 1].End == match.Index)
{
ret.Add(new Token(locationMatches[i - 1].Start, match.Index + match.Length));
}
if (i == locationMatches.Count)
{
break;
}
}
}
return(ret);
}
private IEnumerable <Token> MatchLocationTimes(string text, List <Token> tokens, string originalText, bool reIndex)
{
var ret = new List <Token>();
if (config.LocationTimeSuffixRegex == null)
{
return(ret);
}
var timeMatch = config.LocationTimeSuffixRegex.Matches(text);
// Before calling a Find() in location matcher, check if all the matched suffixes by
// LocationTimeSuffixRegex are already inside tokens extracted by TimeZone matcher.
// If so, don't call the Find() as they have been extracted by TimeZone matcher, otherwise, call it.
bool isAllSuffixInsideTokens = true;
foreach (Match match in timeMatch)
{
bool isInside = false;
foreach (Token token in tokens)
{
if (token.Start <= match.Index && token.End >= match.Index + match.Length)
{
isInside = true;
break;
}
}
if (!isInside)
{
isAllSuffixInsideTokens = false;
}
if (!isAllSuffixInsideTokens)
{
break;
}
}
if (timeMatch.Count != 0 && !isAllSuffixInsideTokens)
{
var lastMatchIndex = timeMatch[timeMatch.Count - 1].Index;
var matches = config.LocationMatcher.Find(text.Substring(0, lastMatchIndex));
var locationMatches = MatchingUtil.RemoveSubMatches(matches);
if (reIndex)
{
foreach (var locMatch in locationMatches)
{
locMatch.Start = originalText.IndexOf(locMatch.CanonicalValues.FirstOrDefault(), locMatch.Start, StringComparison.Ordinal);
}
}
var i = 0;
foreach (Match match in timeMatch)
{
var hasCityBefore = false;
var index = match.Index;
if (reIndex)
{
index = originalText.IndexOf(match.Value, match.Index, StringComparison.Ordinal);
}
while (i < locationMatches.Count && locationMatches[i].End <= index)
{
hasCityBefore = true;
i++;
if (i == locationMatches.Count)
{
break;
}
}
if (hasCityBefore && locationMatches[i - 1].End == index)
{
ret.Add(new Token(locationMatches[i - 1].Start, index + match.Length));
}
if (i == locationMatches.Count)
{
break;
}
}
}
return(ret);
}
