public static TemplateException UnexpectedCharacter(string template, int position, char character)
{
return(TemplateExceptionFactory.Create(template,
new TemplateToken(TemplateToken.Kind.Unknown, position, $"{character}", $"{character}"),
$"Encountered unexpected character '{character}'.",
"Unexpected character."));
}
public static TemplateException LongOptionMustHaveMoreThanOneCharacter(string template, TemplateToken token)
{
// Rewrite the token to point to the option name instead of the whole option.
token = new TemplateToken(token.TokenKind, token.Position + 2, token.Value, token.Value);
return(TemplateExceptionFactory.Create(template, token,
"Long option names must consist of more than one character.",
"Invalid option name."));
}
public static TemplateException ShortOptionMustOnlyBeOneCharacter(string template, TemplateToken token)
{
// Rewrite the token to point to the option name instead of the whole option.
token = new TemplateToken(token.TokenKind, token.Position + 1, token.Value, token.Value);
return(TemplateExceptionFactory.Create(template, token,
"Short option names can not be longer than one character.",
"Invalid option name."));
}
public static TemplateException OptionNamesCannotStartWithDigit(string template, TemplateToken token)
{
// Rewrite the token to point to the option name instead of the whole string.
token = new TemplateToken(token.TokenKind,
token.TokenKind == TemplateToken.Kind.ShortName ? token.Position + 1 : token.Position + 2,
token.Value, token.Value);
return(TemplateExceptionFactory.Create(template, token,
"Option names cannot start with a digit.",
"Invalid option name."));
}
public static TemplateException InvalidCharacterInValueName(string template, TemplateToken token, char character)
{
// Rewrite the token to point to the invalid character instead of the whole value.
token = new TemplateToken(token.TokenKind,
token.Position + 1 + token.Value.IndexOf(character),
token.Value, character.ToString());
return(TemplateExceptionFactory.Create(template, token,
$"Encountered invalid character '{character}' in value name.",
"Invalid character."));
}
public static TemplateException MultipleShortOptionNamesNotAllowed(string template, TemplateToken token)
{
return(TemplateExceptionFactory.Create(template, token,
"Multiple short option names are not supported.",
"Too many short options."));
}
public static TemplateException OptionsMustHaveName(string template, TemplateToken token)
{
return(TemplateExceptionFactory.Create(template, token,
"Options without name are not allowed.",
"Missing option name."));
}
public static TemplateException MultipleValuesAreNotSupported(string template, TemplateToken token)
{
return(TemplateExceptionFactory.Create(template, token,
"Multiple values are not supported.",
"Too many values."));
}
public static TemplateException ArgumentCannotContainOptions(string template, TemplateToken token)
{
return(TemplateExceptionFactory.Create(template, token,
"Arguments can not contain options.",
"Not permitted."));
}
public static TemplateException UnterminatedValueName(string template, TemplateToken token)
{
return(TemplateExceptionFactory.Create(template, token,
$"Encountered unterminated value name '{token.Value}'.",
"Unterminated value name."));
}
public static TemplateException MissingLongAndShortName(string template, TemplateToken token)
{
return(TemplateExceptionFactory.Create(template, token,
"No long or short name for option has been specified.",
"Missing option. Was this meant to be an argument?"));
}
public static TemplateException OptionValueCannotBeOptional(string template, TemplateToken token)
{
return(TemplateExceptionFactory.Create(template, token,
"Option values cannot be optional.",
"Must be required."));
}
