/// <summary>
/// Initializes a new instance of the <see cref="IniFile" /> class.
/// </summary>
public IniFile()
{
GlobalProperties = new IniSection(null);
Sections = new IniSectionCollection();
ErrorLines = new IniErrorLine[0].ToReadOnlyCollection();
}
/// <summary>
/// Creates an <see cref="IniFile" /> object from the specified <see cref="Stream" />.
/// </summary>
/// <param name="stream">The <see cref="Stream" /> from which to parse the INI file from.</param>
/// <param name="encoding">The encoding to use to read the file.</param>
/// <param name="parsingOptions">A <see cref="IniFileParsingOptions" /> object with format specifications for INI parsing, or <see langword="null" /> to use default parsing options.</param>
/// <param name="leaveOpen">A <see cref="bool" /> value indicating whether to leave <paramref name="stream" /> open.</param>
/// <returns>
/// The <see cref="IniFile" /> this method creates.
/// </returns>
public static IniFile FromStream(Stream stream, Encoding encoding, IniFileParsingOptions parsingOptions, bool leaveOpen)
{
Check.ArgumentNull(stream, nameof(stream));
Check.ArgumentNull(encoding, nameof(encoding));
if (parsingOptions == null)
{
parsingOptions = new IniFileParsingOptions();
}
IniFile ini = new IniFile();
IniSection section = ini.GlobalProperties;
bool ignoreSection = false;
List <IniErrorLine> errorLines = new List <IniErrorLine>();
using StreamReader reader = new StreamReader(stream, encoding, true, 4096, leaveOpen);
for (int lineNumber = 1; !reader.EndOfStream; lineNumber++)
{
string line = reader.ReadLine();
string trimmedLine = line.Trim();
if (trimmedLine.StartsWith(";") && parsingOptions.AllowSemicolonComments || trimmedLine.StartsWith("#") && parsingOptions.AllowNumberSignComments)
{
}
else if (trimmedLine == "")
{
AbortIf(!parsingOptions.AllowEmptyLines);
}
else if (trimmedLine.StartsWith("[") && trimmedLine.EndsWith("]"))
{
string newSection = trimmedLine.Substring(1, trimmedLine.Length - 2);
if (parsingOptions.TrimSectionNames)
{
newSection = newSection.Trim();
}
AbortIf(!parsingOptions.AllowSectionNameClosingBracket && newSection.Contains("]"));
IniSection duplicate = ini.Sections.FirstOrDefault(sect => sect.Name.Equals(newSection, parsingOptions.DuplicateSectionNameIgnoreCase ? SpecialStringComparisons.IgnoreCase : SpecialStringComparisons.None));
bool create = false;
switch (parsingOptions.DuplicateSectionNameBehavior)
{
case IniDuplicateSectionNameBehavior.Abort:
AbortIf(duplicate != null);
create = true;
break;
case IniDuplicateSectionNameBehavior.Ignore:
if (duplicate == null)
{
create = true;
}
else
{
ignoreSection = true;
}
break;
case IniDuplicateSectionNameBehavior.Merge:
if (duplicate == null)
{
create = true;
}
else
{
section = duplicate;
}
break;
case IniDuplicateSectionNameBehavior.Duplicate:
create = true;
break;
default:
throw Throw.InvalidEnumArgument(nameof(parsingOptions.DuplicatePropertyNameBehavior), parsingOptions.DuplicatePropertyNameBehavior);
}
if (create)
{
section = new IniSection(newSection);
ini.Sections.Add(section);
}
}
else if (parsingOptions.PropertyDelimiter == IniPropertyDelimiter.EqualSign && line.Contains("="))
{
ParseProperty("=");
}
else if (parsingOptions.PropertyDelimiter == IniPropertyDelimiter.Colon && line.Contains(":"))
{
ParseProperty(":");
}
else
{
Abort();
}
void Abort()
{
if (parsingOptions.IgnoreErrors)
{
errorLines.Add(new IniErrorLine(lineNumber, line));
}
else
{
throw new IniParsingException(lineNumber, line);
}
}
void AbortIf(bool condition)
{
if (condition)
{
Abort();
}
}
void ParseProperty(string delimiter)
{
if (!ignoreSection)
{
AbortIf(!parsingOptions.AllowGlobalProperties && section == ini.GlobalProperties);
IniProperty property = new IniProperty(line.SubstringUntil(delimiter), line.SubstringFrom(delimiter));
if (parsingOptions.TrimPropertyNames)
{
property.Name = property.Name.Trim();
}
if (parsingOptions.TrimPropertyValues)
{
property.Value = property.Value.Trim();
}
IniProperty duplicate = section.Properties.FirstOrDefault(prop => prop.Name.Equals(property.Name, parsingOptions.DuplicatePropertyNameIgnoreCase ? SpecialStringComparisons.IgnoreCase : SpecialStringComparisons.None));
if (duplicate == null)
{
section.Properties.Add(property);
}
else
{
switch (parsingOptions.DuplicatePropertyNameBehavior)
{
case IniDuplicatePropertyNameBehavior.Abort:
Abort();
break;
case IniDuplicatePropertyNameBehavior.Ignore:
break;
case IniDuplicatePropertyNameBehavior.Overwrite:
duplicate.Value = property.Value;
break;
case IniDuplicatePropertyNameBehavior.Duplicate:
section.Properties.Add(property);
break;
default:
throw Throw.InvalidEnumArgument(nameof(parsingOptions.DuplicatePropertyNameBehavior), parsingOptions.DuplicatePropertyNameBehavior);
}
}
}
}
}
ini.ErrorLines = errorLines.AsReadOnly();
return(ini);
}