解析电子名片文件

Question

我想从.vcf文件中检索数据。它是 vcf 格式。

我需要下面提到的每个数据项的正则表达式公式。我试过了，但无法让它工作。

BEGIN:VCARD
VERSION:2.1
FN;CHARSET=utf-8:s James F ' Ernande.
ADR;WORK;X-EDIT=0;X-POS=280,43,54,269,0,0,0,0;CHARSET=utf-8:;;P.O. Box No: 570, P. C-112, Ruwi Muscat, Sultanate Ofoman;;;;
X-IS-TAKE-ADR;CHARSET=utf-8:23.62866567746918;58.26649072858852;
N;X-EDIT=0;X-POS=33,89,29,178;CHARSET=utf-8:s;James F ' Ernande. ;;;
EMAIL;WORK;X-EDIT=0;X-POS=116,59,26,237;CHARSET=utf-8:[e-mail]
EMAIL;WORK;X-EDIT=0;X-POS=142,61,26,234;CHARSET=utf-8:[e-mail]
EXCHANGEDATE:2019-06-16
EXCHANGEDATE:2019-06-16
AUTHOR:IntSig-iOS-iPhone
ORG;WORK;X-EDIT=0;X-POS=0,0,0,0,59,29,33,295,0,0,0,0;CHARSET=utf-8:;Business Development Manaus)r;
TEL;WORK;X-EDIT=0;X-POS=88,107,23,142;CHARSET=utf-8:[phone]
TEL;WORK;X-EDIT=0;X-POS=332,133,28,182;CHARSET=utf-8:[phone]
TEL;WORK;X-EDIT=0;X-POS=328,36,27,92;CHARSET=utf-8:24796647
END:VCARD

法典：

Regex regex = new Regex(@"(?<strElement>(FN))   (:(?<strFN>[^rn]*))", options);// For retrieving the First Name
Regex regex = new Regex(@"((?<strElement>(EMAIL)) (;*(?<strAttr>(HOME|WORK)))*  (;(?<strPref>(PREF)))* (;[^:]*)*  (:(?<strValue>[^nr]*)))");//for retrieving Email

我没有得到所需的确切正则表达式公式。

Answer 1

这是一个简单的解析器：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.IO;

namespace ConsoleApplication124
{
class Program
{
static void Main(string[] args)
{
string input =
"BEGIN:VCARDn" +
"VERSION:2.1n" +
"FN;CHARSET=utf-8:s James F ' Ernande.n" +
"ADR;WORK;X-EDIT=0;X-POS=280,43,54,269,0,0,0,0;CHARSET=utf-8:;;P.O. Box No: 570, P. C-112, Ruwi Muscat, Sultanate Ofoman;;;;n" +
"X-IS-TAKE-ADR;CHARSET=utf-8:23.62866567746918;58.26649072858852;n" +
"N;X-EDIT=0;X-POS=33,89,29,178;CHARSET=utf-8:s;James F ' Ernande. ;;;n" +
"EMAIL;WORK;X-EDIT=0;X-POS=116,59,26,237;CHARSET=utf-8:[e-mail]" +
"EMAIL;WORK;X-EDIT=0;X-POS=142,61,26,234;CHARSET=utf-8:[e-mail]" +
"EXCHANGEDATE:2019-06-16n" +
"EXCHANGEDATE:2019-06-16n" +
"AUTHOR:IntSig-iOS-iPhonen" +
"ORG;WORK;X-EDIT=0;X-POS=0,0,0,0,59,29,33,295,0,0,0,0;CHARSET=utf-8:;Business Development Manaus)r;n" +
"TEL;WORK;X-EDIT=0;X-POS=88,107,23,142;CHARSET=utf-8:[phone]n" +
"TEL;WORK;X-EDIT=0;X-POS=332,133,28,182;CHARSET=utf-8:[phone]n" +
"TEL;WORK;X-EDIT=0;X-POS=328,36,27,92;CHARSET=utf-8:24796647n" +
"END:VCARD";

ParseVCF parseVCF =  new ParseVCF(input);
}
}
public class ParseVCF
{
public string version { get; set; }
public List<string> data = new List<string>();
enum State
{
FIND_BEGIN,
GET_VERSION,
PROCESS_DATA,
FOUND_END
}
public ParseVCF(string input)
{
StringReader reader = new StringReader(input);
string line = "";
State state = State.FIND_BEGIN;
while(((line = reader.ReadLine()) != null) && (state != State.FOUND_END))
{
line = line.Trim();
if (line.Length > 0)
{
switch (state)
{
case State.FIND_BEGIN :
if (line.StartsWith("BEGIN:"))
{
state = State.GET_VERSION;
}
break;
case State.GET_VERSION :
string[] split = line.Split(new char[] { ':' });
version = split[1];
state = State.PROCESS_DATA;
break;
case State.PROCESS_DATA :
if(line.StartsWith("END"))
{
state = State.FOUND_END;
}
else
{
data.Add(line);
}
break;
}
}
}
}
}
}