internal static string ReadUntilDelimiter(StringBuffer fullString, ICollection <char> delimeters)
{
var value = new StringBuffer();
char nextChar;
while (!fullString.IsEmpty && !delimeters.Contains(nextChar = fullString.PeekStart()))
{
if (nextChar == SpChar_EscapeChar)
{
fullString.PopFromStart(); // Skip the escape char.
value.PushToEnd(fullString.PopFromStart()); // Allow the escaped char into the value.
}
else if (nextChar == SpChar_LiteralStringBlock)
{
fullString.PopFromStart(); // Skip the escape char.
while (!fullString.IsEmpty && (nextChar = fullString.PopFromStart()) != SpChar_LiteralStringBlock)
{
value.PushToEnd(nextChar); // Grab everything contained between the " chars except the " chars
}
}
else
{
value.PushToEnd(fullString.PopFromStart()); // Basic case
}
}
fullString.PopFromStart(); // Skip delimeter
return(value.ToString());
}
private static StringBuffer CleanValue(StringBuffer rawValue, bool stopAtKey = false)
{
var cleanValue = new StringBuffer();
while (!rawValue.IsEmpty)
{
switch (rawValue.PeekStart())
{
case ' ': // spaces
rawValue.TrimStart(' ');
break;
case '\t': // tabs
rawValue.TrimStart('\t');
break;
case '\r': // line breaks
case '\n':
rawValue.TrimStart('\r', '\n');
break;
case SpChar_CommentBlock: // comments
rawValue.PopFromStart(); // Pop first #
char poppedChar;
do
{
poppedChar = rawValue.PopFromStart();
} while (!rawValue.IsEmpty && poppedChar != SpChar_CommentBlock);
break;
case SpChar_KeyDelimiter when stopAtKey:
return(cleanValue);
case SpChar_LiteralStringBlock:
cleanValue.PushToEnd(rawValue.PopFromStart()); // Add first "
char popped;
do
{
popped = rawValue.PopFromStart();
cleanValue.PushToEnd(popped);
} while (popped != SpChar_LiteralStringBlock);
break;
case SpChar_EscapeChar:
cleanValue.PushToEnd(rawValue.PopFromStart()); // Pop escape char
cleanValue.PushToEnd(rawValue.PopFromStart()); // Add escaped char
break;
default:
cleanValue.PushToEnd(rawValue.PopFromStart());
break;
}
}
return(cleanValue);
}
protected virtual StringBuffer ExtractKey(StringBuffer fullString)
{
var key = new StringBuffer();
while (fullString.Count > 0 && fullString.PeekStart() != ':')
{
key.PushToEnd(fullString.PopFromStart());
}
fullString.PopFromStart(); // Skip : separator
return(key);
}
protected override string ExtractValue(StringBuffer fullString)
{
string serialValues = string.Empty;
do
{
string serialValue = ReadUntilDelimiter(fullString, ListDelimeters);
this.Values.Add(ConvertFromSerial(serialValue));
serialValues += serialValue + SpChar_ListItemSplitter;
} while (fullString.Count > 0 && fullString.PeekStart() != SpChar_ValueDelimiter);
return(serialValues.TrimEnd(SpChar_ListItemSplitter));
}
protected override string ExtractValue(StringBuffer fullString)
{
string serialValues = $"{SpChar_BeginComplexValue}";
int openParens = 0;
var buffer = new StringBuffer();
do
{
switch (fullString.PeekStart())
{
case SpChar_ValueDelimiter when openParens == 0: // End of ComplexList
case SpChar_ListItemSplitter when openParens == 0 && fullString.Count > 0: // End of a nested property belonging to this collection
fullString.PopFromStart(); // Skip delimiter
var collection = (ListedType)Template.Copy();
collection.FromString($"{this.Key}{SpChar_KeyDelimiter}{buffer.ToString()}{SpChar_ValueDelimiter}");
this.Values.Add(collection);
buffer.Clear();
serialValues += $"{collection.SerializedValue}{SpChar_ListItemSplitter}";
break;
case SpChar_BeginComplexValue:
openParens++;
goto default;
case SpChar_FinishComplexValue:
openParens--;
if (openParens < 0)
{
throw new EmException(UnbalancedContainersError, buffer);
}
goto default;
default:
buffer.PushToEnd(fullString.PopFromStart());
break;
}
} while (fullString.Count > 0);
if (openParens != 0)
{
throw new EmException(UnbalancedContainersError, buffer);
}
return(serialValues.TrimEnd(SpChar_ListItemSplitter) + SpChar_FinishComplexValue);
}
internal static string EscapeSpecialCharacters(string unescapedValue)
{
if (string.IsNullOrEmpty(unescapedValue))
{
return(string.Empty);
}
var original = new StringBuffer(unescapedValue);
var escaped = new StringBuffer();
if (original.Contains(' '))
{
escaped.PushToEnd(SpChar_LiteralStringBlock);
escaped.TransferToEnd(original);
escaped.PushToEnd(SpChar_LiteralStringBlock);
}
else
{
while (!original.IsEmpty)
{
switch (original.PeekStart())
{
case SpChar_KeyDelimiter:
case SpChar_ValueDelimiter:
case SpChar_BeginComplexValue:
case SpChar_FinishComplexValue:
case SpChar_ListItemSplitter:
case SpChar_CommentBlock:
case SpChar_EscapeChar:
escaped.PushToEnd(SpChar_EscapeChar);
break;
default:
break;
}
escaped.PushToEnd(original.PopFromStart());
}
}
return(escaped.ToString());
}
public string PrettyPrint()
{
string originalValue = ToString();
if (string.IsNullOrEmpty(originalValue))
{
return(string.Empty);
}
var originalString = new StringBuffer(originalValue);
var prettyString = new StringBuffer();
int indentLevel = 0;
const int indentSize = 4;
do
{
switch (originalString.PeekStart())
{
case SpChar_BeginComplexValue:
prettyString.PushToEnd('\r', '\n');
prettyString.PushToEnd(' ', indentLevel * indentSize);
indentLevel++;
prettyString.PushToEnd(originalString.PopFromStart());
prettyString.PushToEnd('\r', '\n');
prettyString.PushToEnd(' ', indentLevel * indentSize);
prettyString.PushToEnd(originalString.PopFromStart());
break;
case SpChar_ValueDelimiter:
prettyString.PushToEnd(originalString.PopFromStart());
if (originalString.IsEmpty || originalString.PeekStart() == SpChar_FinishComplexValue)
{
indentLevel--;
}
prettyString.PushToEnd('\r', '\n');
prettyString.PushToEnd(' ', indentLevel * indentSize);
break;
case SpChar_CommentBlock:
prettyString.PushToEnd(originalString.PopFromStart());
do
{
prettyString.PushToEnd(originalString.PopFromStart());
} while (!originalString.IsEmpty && prettyString.PeekEnd() != SpChar_CommentBlock);
prettyString.PushToEnd('\r', '\n');
prettyString.PushToEnd(' ', indentLevel * indentSize);
break;
case SpChar_KeyDelimiter:
prettyString.PushToEnd(originalString.PopFromStart());
prettyString.PushToEnd(' '); // Add a space after every KeyDelilmiter
break;
default:
prettyString.PushToEnd(originalString.PopFromStart());
break;
}
} while (!originalString.IsEmpty);
return(prettyString.ToString());
}