public static bool IsDelimiter(char c, char delimiter)
{
if (delimiter == '"')
{
return(SpecialCharacters.IsDoubleQuote(c));
}
return(delimiter == '\'' ? SpecialCharacters.IsSingleQuote(c) : (int)c == (int)delimiter);
}
public static char AsQuote(char c)
{
if (SpecialCharacters.IsSingleQuote(c))
{
return('\'');
}
return(SpecialCharacters.IsDoubleQuote(c) ? '"' : c);
}
/// <summary>
/// Escapes content so that it is safe for inclusion in a single-quoted string.
/// For example: "'" + EscapeSingleQuotedStringContent(userContent) + "'"
/// </summary>
/// <param name="value">The content to be included in a single-quoted string.</param>
/// <returns>Content with all single-quotes escaped.</returns>
public static string EscapeSingleQuotedStringContent(string value)
{
if (string.IsNullOrEmpty(value))
{
return(string.Empty);
}
StringBuilder sb = new StringBuilder(value.Length);
foreach (char c in value)
{
sb.Append(c);
if (SpecialCharacters.IsSingleQuote(c))
{
// double-up quotes to escape them
sb.Append(c);
}
}
return(sb.ToString());
}
public static bool IsQuote(char c) => SpecialCharacters.IsSingleQuote(c) | SpecialCharacters.IsDoubleQuote(c);
