Getting exception while parsing file using Sprache "Parsing failure: Unexpected end of input reached; expected =" - sprache

Question

I want to parse below file,
first=The_First_Step
{
{
value=First.Value,
}
}
second=The_Second_Step
{
{
another = Second_Value,
more = Yet.More,
}
}
I have written grammar as,
public static NGSection ParseSections(string ngServerConfig)
{
return Sections.End().Parse(ngServerConfig);
}
internal static Parser<string> ValueText = Parse.LetterOrDigit.AtLeastOnce().Text().Token();
internal static Parser<string> Identifier = Parse.AnyChar.AtLeastOnce().Text().Token();
internal static Parser<Config> Config =
from id in Identifier
from equal in Parse.Char('=').Token()
from value in ValueText
from comma in Parse.Char(',').Token()
select new Config(id, value);
internal static Parser<Section> Section =
from id in Identifier
from equal in Parse.Char('=').Token()
from title in ValueText
from lbracket in Parse.Char('{').Token()
from inbracket in Parse.Char('{').Token()
from configs in Config.AtLeastOnce()
from outbracket in Parse.Char('}').Token()
from rbracket in Parse.Char('}').Token()
select new Section(id, title, configs);
internal static Parser<NGSection> Sections =
from sections in Section.AtLeastOnce()
select new NGSection(sections);
I am getting exception as
Parsing failure: Unexpected end of input reached; expected = (Line 13, Column 2); recently consumed: ore
}
}
Any clue will be helpful.

Answer 1

Two problems: first, values can contain _ or . in your example, so LetterOrDigit won't cover it. Should be:
internal static Parser<string> ValueText =
Parse.LetterOrDigit.Or(Parse.Chars('_', '.')).AtLeastOnce().Text().Token();
Next, the Identifier parser's AnyChar is too greedy; you need to exclude the =, or it will be considered part of the identifier:
internal static Parser<string> Identifier =
Parse.CharExcept('=').AtLeastOnce().Text().Token();