public static string ParseAttributeValue(string value, XmlRecordReader reader)
{
DocumentOptions options = reader.Options;
if (!options.UseVariables)
{
return(value);
}
for (int i = 0; i < value.Length; i++)
{
if (value[i] == options.OpenVariableDelimiter)
{
if (i == value.Length - 1)
{
Throw.CharacterMustBeEscaped(value, options.OpenVariableDelimiter);
}
else if (value[i + 1] == options.OpenVariableDelimiter)
{
i++;
}
else
{
var fInside = true;
int startIndex = i;
int lastEndIndex = 0;
i++;
var sb = new StringBuilder();
while (i < value.Length)
{
if (!fInside)
{
if (value[i] == options.OpenVariableDelimiter)
{
fInside = true;
startIndex = i;
}
else if (value[i] == options.CloseVariableDelimiter)
{
if (i == value.Length - 1 ||
value[i + 1] != options.CloseVariableDelimiter)
{
Throw.CharacterMustBeEscaped(value, options.CloseVariableDelimiter);
}
}
}
else if (value[i] == options.OpenVariableDelimiter)
{
if (i - startIndex == 1)
{
fInside = false;
startIndex = -1;
}
else
{
Throw.VariableNameCannotContainCharacter(value, options.OpenVariableDelimiter);
}
}
else if (value[i] == options.CloseVariableDelimiter)
{
int length = i - startIndex - 1;
if (length == 0)
{
Throw.VariableNameCannotBeEmpty(value);
}
string variableName = value.Substring(startIndex + 1, length);
Variable variable = reader.FindVariable(variableName);
if (variable.IsDefault)
{
Throw.VariableIsNotDefined(value, variableName);
}
sb.Append(value, lastEndIndex, startIndex - lastEndIndex);
sb.Append(variable.Value);
fInside = false;
startIndex = -1;
lastEndIndex = i + 1;
}
i++;
}
if (fInside)
{
Throw.VariableMustBeClosed(value, options.OpenVariableDelimiter);
}
if (lastEndIndex > 0)
{
sb.Append(value, lastEndIndex, value.Length - lastEndIndex);
}
return(sb.ToString());
}
}
}
return(value);
}
public static string GetAttributeValue(string value, RecordReaderBase reader)
{
DocumentReaderSettings settings = reader.Settings;
if (!settings.UseVariables)
{
return(value);
}
for (int i = 0; i < value.Length; i++)
{
if (value[i] == settings.VariableOpenDelimiter)
{
if (i == value.Length - 1)
{
Throw.CharacterMustBeEscaped(value, settings.VariableOpenDelimiter);
}
else if (value[i + 1] == settings.VariableOpenDelimiter)
{
i++;
}
else
{
bool fInside = true;
int startIndex = i;
int lastEndIndex = 0;
i++;
var sb = new StringBuilder();
while (i < value.Length)
{
if (!fInside)
{
if (value[i] == settings.VariableOpenDelimiter)
{
fInside = true;
startIndex = i;
}
else if (value[i] == settings.VariableCloseDelimiter)
{
if (i == value.Length - 1 ||
value[i + 1] != settings.VariableCloseDelimiter)
{
Throw.CharacterMustBeEscaped(value, settings.VariableCloseDelimiter);
}
}
}
else
{
if (value[i] == settings.VariableOpenDelimiter)
{
if (i - startIndex == 1)
{
fInside = false;
startIndex = -1;
}
else
{
Throw.VariableNameCannotContainCharacter(value, settings.VariableOpenDelimiter);
}
}
else if (value[i] == settings.VariableCloseDelimiter)
{
int length = i - startIndex - 1;
if (length == 0)
{
Throw.VariableNameCannotBeEmpty(value);
}
string variableName = value.Substring(startIndex + 1, length);
Variable variable = reader.FindVariable(variableName);
if (variable == null)
{
Throw.VariableIsNotDefined(value, variableName);
}
sb.Append(value, lastEndIndex, startIndex - lastEndIndex);
sb.Append(variable.Value);
fInside = false;
startIndex = -1;
lastEndIndex = i + 1;
}
}
i++;
}
if (fInside)
{
Throw.VariableMustBeClosed(value, settings.VariableOpenDelimiter);
}
if (lastEndIndex > 0)
{
sb.Append(value, lastEndIndex, value.Length - lastEndIndex);
}
return(sb.ToString());
}
}
}
return(value);
}
