using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(PI~)([0-9]*)";
string input = @" MSH|^~\&|EPIC|UMCG|||20180927143440||ADR^A19|18093|P|2.4|||||||||||
MSA|CA|20180927023440||
QRD|20180927|R|I|20180927|||1^RD|1414141|DEM
EVN|A19|20180927143440|||^^^^^^^^^^^^^||
PID|1||1414141^^^UMCG^PI~109819226||PROEFPERSOON&&PROEFPERSOON^J^X Y Z^^^^L^^^^NL1~PROEFPERSOON&&PROEFPERSOON^PIET^^^^^N^^^^NL1||19700101|M|PROEFPERSOON^PIET^^||PROEFLAAN 1C&PROEFLAAN&1C^^GRONINGEN^^9713GZ^NLD^L||050-1234567^P^PH^^^050^1234567~^NET^Internet^PIET@PROEFPERSOON.com~06-12345678^P^CP^^^06^12345678|06-87654321^P^PH^^^06^87654321|NEDERLANDS|||19764||||||Y||||||N||
ROL|1|UP|PP^Primary Care Provider|01001234^Huisarts^H^^^^^^Vektis^L|||||01^Huisartsen^Vektis||Straatweg 2&Straatweg&2^^Groningen^^9723AA^^O|050-3134102^WPN^PH~^NET^X.400^800013630
PV1|1|I|UG_V_A1VA^4^4-1^10^^^^^UMCG A1VA^^DEPID|NB||||||||||WOON|||||19764|CZ||||||||||||||||||||||||20180926143019||||||99996||||
AL1|1|SYSTEMISCH|^GEEN BEKENDE ALLERGIEEN^||||||
IN1|1||7119^^^UZOVI^PAYORID|CZ GROEP ZORGVERZEKERAAR UA (7119)|POSTBUS 4400&POSTBUS 4400&^^GOES^^4460CZ^||0113-274727^^^^^0113^274727|||||||||PROEFPERSOON^J^X Y Z.^^|Zelf|||Accepteren||1|||Ja||||||||||2552|ABC0123|||||||||||BEIDE||
IN2|||||Verzekeraar||||||||||||||||||||||||||||||||||||||||||||||||||||||||ABC0123|||||||||
L|1|UP|PP^Primary Care Provider|01001234^Huisarts^H^^^^^^Vektis^L|||||01^Huisartsen^Vektis||Straatweg 2&Straatweg&2^^Groningen^^9723AA^^O|050-3134102^WPN^PH~^NET^X.400^800013630
";
RegexOptions options = RegexOptions.Multiline;
foreach (Match m in Regex.Matches(input, pattern, options))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx