public PatternBuilder AddGuid(string format, bool force)
{
var token = new Token();
ControlBlock cb = null;
if (!string.IsNullOrWhiteSpace(format))
{
if (!string.Equals("N", format, StringComparison.CurrentCulture) && !string.Equals("D", format, StringComparison.CurrentCulture) &&
!string.Equals("B", format, StringComparison.CurrentCulture) && !string.Equals("P", format, StringComparison.CurrentCulture) &&
!string.Equals("X", format, StringComparison.CurrentCulture))
{
throw new PatternBuilderException($"An unrecognized GUID format string was found. Format string found: '{format}'.");
}
if (force)
{
token.Type = TokenType.LITERAL;
token.Value = Guid.NewGuid().ToString(format);
}
else
{
token.Type = TokenType.CONTROL_BLOCK;
cb = new ControlBlock()
{
Type = ControlBlockType.FCB,
FunctionName = "GUID",
Function = () => Guid.NewGuid().ToString(format),
Format = format,
};
}
}
else
{
if (force)
{
token.Type = TokenType.LITERAL;
token.Value = Guid.NewGuid().ToString();
}
else
{
token.Type = TokenType.CONTROL_BLOCK;
cb = new ControlBlock()
{
Type = ControlBlockType.FCB,
FunctionName = "GUID",
Function = () => Guid.NewGuid().ToString()
};
}
}
token.ControlBlock = cb;
_patternList.Last().Tokens.Add(token);
return(this);
}
public PatternBuilder AddDateTime(string format, bool force)
{
var token = new Token();
ControlBlock cb = null;
if (!string.IsNullOrWhiteSpace(format))
{
if (force)
{
token.Type = TokenType.LITERAL;
token.Value = DateTime.Now.ToString(format);
}
else
{
token.Type = TokenType.CONTROL_BLOCK;
cb = new ControlBlock()
{
Type = ControlBlockType.FCB,
FunctionName = "DATETIME",
Function = () => DateTime.Now.ToString(format),
Format = format
};
}
}
else
{
if (force)
{
token.Type = TokenType.LITERAL;
token.Value = DateTime.Now.ToString();
}
else
{
token.Type = TokenType.CONTROL_BLOCK;
cb = new ControlBlock()
{
Type = ControlBlockType.FCB,
FunctionName = "DATETIME",
Function = () => DateTime.Now.ToString()
};
}
}
token.ControlBlock = cb;
_patternList.Last().Tokens.Add(token);
return(this);
}
private void HandleFunctionBlock(ref Token token, string pattern, int originalPosition)
{
var EOS = false;
var force = false;
var cb = new ControlBlock()
{
Type = ControlBlockType.FCB
};
var functionName = new StringBuilder();
var formatter = new StringBuilder(string.Empty);
char functionCode = 'x';
while (!EOS)
{
pos++;
if (pos >= pattern.Length)
{
throw new InvalidPatternException($"No closing control block token found for the control block starting at position {originalPosition}.");
}
switch (pattern[pos])
{
case 'T':
case 'G':
functionCode = pattern[pos];
pos++;
if (pos >= pattern.Length)
{
throw new InvalidPatternException($"No closing control block token found for the control block starting at position {originalPosition}.");
}
if (char.Equals(pattern[pos], '}'))
{
EOS = true;
//cb.FunctionName = functionCode.ToString();
//if (char.Equals(functionCode, 'T'))
// cb.Function = () => DateTime.Now.ToString();
//else
// cb.Function = () => Guid.NewGuid().ToString();
//token.ControlBlock = cb;
//EOS = true;
}
else if (char.Equals(pattern[pos], '?'))
{
if (!char.Equals(pattern[pos + 1], '}'))
{
throw new InvalidPatternException($"Expecting a control block closing brace at positions {pos + 1}, which was not found.");
}
force = true;
EOS = true;
pos++;
}
else if (char.Equals(pattern[pos], ':'))
{
cb.FunctionName = functionCode.ToString();
while (!EOS)
{
pos++;
if (pos >= pattern.Length)
{
throw new InvalidPatternException($"No closing control block token found for the control block starting at position {originalPosition}.");
}
if (char.Equals(pattern[pos], '}'))
{
if (formatter.Length < 1)
{
throw new InvalidPatternException($"Expected function formatting string at position {pos}.");
}
EOS = true;
}
else if (char.Equals(pattern[pos], '?'))
{
if (!char.Equals(pattern[pos + 1], '}'))
{
throw new InvalidPatternException($"Expecting a control block closing brace at positions {pos + 1}, which was not found.");
}
force = true;
}
else
{
formatter.Append(pattern[pos]);
}
}
}
else
{
throw new InvalidPatternException($"An unexpected token '{pattern[pos]}' was found at position {pos}.");
}
break;
default:
functionName.Append(pattern[pos]);
while (true)
{
pos++;
if (pos >= pattern.Length)
{
throw new InvalidPatternException($"No closing control block token found for the control block starting at position {originalPosition}.");
}
if (pattern[pos].Equals('}'))
{
break;
}
functionName.Append(pattern[pos]);
}
cb.FunctionName = functionName.ToString();
if (string.IsNullOrWhiteSpace(cb.FunctionName))
{
throw new InvalidPatternException($"User-defined function name cannot be null, empty, or whitespace (UDF starting at position {originalPosition}).");
}
EOS = true;
break;
}
}
var format = formatter.ToString();
if (char.Equals(functionCode, 'G'))
{
cb.FunctionName = "GUID";
if (!string.IsNullOrWhiteSpace(format))
{
if (!string.Equals("N", format, StringComparison.CurrentCulture) && !string.Equals("D", format, StringComparison.CurrentCulture) &&
!string.Equals("B", format, StringComparison.CurrentCulture) && !string.Equals("P", format, StringComparison.CurrentCulture) &&
!string.Equals("X", format, StringComparison.CurrentCulture))
{
throw new InvalidPatternException($"An unrecognized GUID format string was found. Format string found: '{format}'.");
}
if (force)
{
token.Type = TokenType.LITERAL;
token.Value = Guid.NewGuid().ToString(format);
cb = null;
}
else
{
cb.Function = () => Guid.NewGuid().ToString(format);
}
}
else
{
if (force)
{
token.Type = TokenType.LITERAL;
token.Value = Guid.NewGuid().ToString();
cb = null;
}
else
{
cb.Function = () => Guid.NewGuid().ToString();
}
}
}
else if (char.Equals(functionCode, 'T'))
{
cb.FunctionName = "DATETIME";
if (!string.IsNullOrWhiteSpace(format))
{
if (force)
{
token.Type = TokenType.LITERAL;
token.Value = DateTime.Now.ToString(format);
cb = null;
}
else
{
cb.Function = () => DateTime.Now.ToString(format);
}
}
else
{
if (force)
{
token.Type = TokenType.LITERAL;
token.Value = DateTime.Now.ToString();
cb = null;
}
else
{
cb.Function = () => DateTime.Now.ToString();
}
}
}
token.ControlBlock = cb;
if (TokenType.DUMMY == token.Type)
{
token.Type = TokenType.CONTROL_BLOCK;
if (isInGroup)
{
tokenizedGroup.Add(currentGroup);
currentGroup = new TokenGroup();
currentGroup.Tokens.Add(token);
handled = true;
}
}
}
private void HandleExclusionBlock(ref Token token, string pattern, int originalPosition)
{
Token tempToken = null;
var cb = new ControlBlock();
var sb = new StringBuilder();
cb.Type = ControlBlockType.ECB;
if (pos == 1)
{
//This is global ECB
cb.Global = true;
}
else
{
//Get the previous token in the the list. If it is not a regular token (i.e. it is a control box) throw exception
//tempToken = tokenizedList.Last();
tempToken = currentGroup.Tokens.Last();
if (tempToken.ControlBlock != null) //&& tempToken.ControlBlock.Global == true)
{
throw new DuplicateGlobalControlBlockException($"A second exclusion control block was found starting at position {originalPosition}.");
}
cb.Global = false;
}
if (pos + 1 >= pattern.Length)
{
throw new InvalidPatternException($"No closing control block token found for the control block starting at position {originalPosition}.");
}
var process = true;
while (process)
{
pos++;
if (pos >= pattern.Length)
{
throw new InvalidPatternException($"No closing control block token found for the control block starting at position {originalPosition}.");
}
switch (pattern[pos])
{
case '{':
sb.Append(pattern[pos]);
break;
case '\\':
pos++;
if (pattern[pos].Equals('}'))
{
sb.Append('}');
}
else if (pattern[pos].Equals('\\'))
{
sb.Append('\\');
}
else if (pattern[pos].Equals('-'))
{
sb.Append('-');
}
else
{
throw new InvalidPatternException($"Unknown escape sequence \\{pattern[pos]} at position {pos - 1}.");
}
break;
case '}':
process = false;
break;
default:
sb.Append(pattern[pos]);
break;
}
}
cb.ExceptValues = sb.ToString().ToCharArray();
if (cb.Global)
{
token.ControlBlock = cb;
//tokenizedList.Add(token);
currentGroup.Tokens.Add(token);
}
else
{
if (TokenType.DUMMY == token.Type)
{
currentGroup.ControlBlock = cb;
}
else
{
tempToken.ControlBlock = cb;
//tokenizedList.RemoveAt(tokenizedList.Count - 1);
//tokenizedList.Add(tempToken);
currentGroup.Tokens.RemoveAt(currentGroup.Tokens.Count - 1);
currentGroup.Tokens.Add(tempToken);
}
}
handled = true;
}
