using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^[^\S\r\n]*
(?:
\s* (?<section>\[[^\]]*\]) [^\S\r\n]* (?<comment>(?:[#;].*)?)
| (?<comment>(?:[#;].*)?)
| (?:
(?<key>[^#;]+?)
\s* = [^\S\r\n]*
(?:
(?:
""(?<value_quote>.*)""
| (?<value>(?:[^#;\r\n\\\s]*[\s]??(?:\\.)*)*)
) [^\S\r\n]* (?<comment>(?:[#;].*)?)
)
)
| (?<error>.*)
)
$";
string input = @";An orphan comment at the top of the file
#Another orphan comment
#Comment above a group
[Group1] #Group comment 1
Key1=Value1#Comment 1
Key2=Value 2
Key 3=Value 3
Key 4=Value4
Key5=Value \#5;Comment 2
;Another comment above a group
[Group 2] ;Group comment 2
Key1 = Value1 #Comment 3
Key2 = Value 2
Key 3 = Value 3
Key 4 = Value4
Key 5 = Value\;5 ;Comment 4
Key 6 = Value\;6\#1 ;Comment 5
Key 7 ;Comment 6
Key 8 = Value;7 \\;Comment 7
Key 8 =;Comment 7
Key 9 = Value\\;8 ;Comment 8
; with quotes
;An orphan comment at the top of the file
#Another orphan comment
#Comment above a group
[Group1] #Group comment 1
Key1=""Value1""#Comment 1
Key2=""Value 2""
Key 3=""Value 3""
Key 4=""Value4""
Key5=""Value \#5"";Comment 2
;Another comment above a group
[Group 2] ;Group comment 2
Key1 = ""Value1"" #Comment 3
Key2 = ""Value 2""
Key 3 ="" Value 3""
Key 4 = ""Value4""
Key 5 = ""Value\;5 ;Comment 4""
Key 6 = ""Value\;6\#1 "";Comment 5
Key 7 ;Comment 6
Key 8 = ""Value;7 \"";Comment 7
Key 8 ="";Comment 7
Key 9 = ""Value\\"";8 ;Comment 8
";
RegexOptions options = RegexOptions.IgnoreCase | RegexOptions.IgnorePatternWhitespace | 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