/// <summary>
/// Constructs a new RegexString with the given string and <see cref="RegexStringOptions"/>
/// </summary>
/// <param name="pattern"></param>
/// <param name="options"></param>
public RegexString(string pattern, RegexStringOptions options)
{
Options = options;
if (!options.HasFlag(RegexStringOptions.PlainText))
{
string regexPattern = pattern;
if (options.HasFlag(RegexStringOptions.MatchFromStart))
{
//'^' is the regex modifier to assert that the match must begin at the start of the string
regexPattern = "^" + regexPattern;
}
if (options.HasFlag(RegexStringOptions.MatchAtEnd))
{
//'$' is the regex modifier to assert that the match must end at the end of the string
regexPattern = regexPattern + "$";
}
_regex = new Regex(regexPattern, !options.HasFlag(RegexStringOptions.CaseSensitive) ? RegexOptions.IgnoreCase : RegexOptions.None);
}
_matchStart = options.HasFlag(RegexStringOptions.MatchFromStart);
_matchEnd = options.HasFlag(RegexStringOptions.MatchAtEnd);
_caseSensitive = options.HasFlag(RegexStringOptions.CaseSensitive);
_string = _caseSensitive ? pattern : pattern.ToLowerInvariant();
}
/// <summary>
/// Constructs a new CommandExecutorAttribute using the given <see cref="RegexString"/>s to match input to the command
/// </summary>
/// <param name="description">A string describing the command</param>
/// <param name="commandMatcher">A required RegexString that input must match for the command to be run</param>
/// <param name="matcherOptions">A RegexStringOptions enum defining how the matcher will behave</param>
/// <param name="friendlyName">An optional human-readable name for the command</param>
public CommandExecutorAttribute(string description, string commandMatcher, RegexStringOptions matcherOptions, string friendlyName = null)
{
Description = description;
CommandMatcher = new RegexString(commandMatcher, matcherOptions);
FriendlyName = friendlyName;
}
/// <summary>
/// Constructs a new SubcommandExecutorAttribute using the given <see cref="RegexString"/>s to match input to the command
/// </summary>
/// <param name="parentCommand">A string representing the name of the command that executes this subcommand</param>
/// <param name="description">A string describing the command</param>
/// <param name="commandMatcher">A required RegexString that input must match for the command to be run</param>
/// <param name="matcherOptions">A RegexStringOptions enum defining how the matcher will behave</param>
/// <param name="friendlyName">An optional human-readable name for the command</param>
public SubcommandExecutorAttribute(string parentCommand, string description, string commandMatcher, RegexStringOptions matcherOptions, string friendlyName = null)
: base(description, commandMatcher, matcherOptions, friendlyName)
{
ParentName = parentCommand;
}
