/// <summary>
/// extractor the percentage entities from the sentence
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
public List <ExtractResult> Extract(string source)
{
string originSource = source;
var positionMap = default(Dictionary <int, int>);
var numExtResults = default(IList <ExtractResult>);
// preprocess the source sentence via extracting and replacing the numbers in it
source = this.PreprocessStrWithNumberExtracted(originSource, out positionMap, out numExtResults);
List <MatchCollection> allMatches = new List <MatchCollection>();
// match percentage with regexes
foreach (Regex regex in Regexes)
{
allMatches.Add(regex.Matches(source));
}
bool[] matched = new bool[source.Length];
for (int i = 0; i < source.Length; i++)
{
matched[i] = false;
}
for (int i = 0; i < allMatches.Count; i++)
{
foreach (Match match in allMatches[i])
{
for (int j = 0; j < match.Length; j++)
{
matched[j + match.Index] = true;
}
}
}
List <ExtractResult> result = new List <ExtractResult>();
int last = -1;
//get index of each matched results
for (int i = 0; i < source.Length; i++)
{
if (matched[i])
{
if (i + 1 == source.Length || matched[i + 1] == false)
{
int start = last + 1;
int length = i - last;
string substr = source.Substring(start, length);
ExtractResult er = new ExtractResult
{
Start = start,
Length = length,
Text = substr,
Type = ExtractType
};
result.Add(er);
}
}
else
{
last = i;
}
}
// post-processing, restoring the extracted numbers
this.PostProcessing(result, originSource, positionMap, numExtResults);
return(result);
}
public virtual List <ExtractResult> Extract(string source)
{
if (string.IsNullOrEmpty(source))
{
return(new List <ExtractResult>());
}
var result = new List <ExtractResult>();
var matchSource = new Dictionary <Match, string>();
var matched = new bool[source.Length];
for (var i = 0; i < source.Length; i++)
{
matched[i] = false;
}
var collections = Regexes.ToDictionary(o => o.Key.Matches(source), p => p.Value);
foreach (var collection in collections)
{
foreach (Match m in collection.Key)
{
for (var j = 0; j < m.Length; j++)
{
matched[m.Index + j] = true;
}
//Keep Source Data for extra information
matchSource.Add(m, collection.Value);
}
}
var last = -1;
for (var i = 0; i < source.Length; i++)
{
if (matched[i])
{
if (i + 1 == source.Length || !matched[i + 1])
{
var start = last + 1;
var length = i - last;
var substr = source.Substring(start, length);
if (matchSource.Keys.Any(o => o.Index == start && o.Length == length))
{
var srcMatch = matchSource.Keys.First(o => o.Index == start && o.Length == length);
var er = new ExtractResult
{
Start = start,
Length = length,
Text = substr,
Type = ExtractType,
Data = matchSource.ContainsKey(srcMatch) ? matchSource[srcMatch] : null
};
result.Add(er);
}
}
}
else
{
last = i;
}
}
return(result);
}
