/// <summary>
/// Returns a dictionary keyed by state, that contains all of the outgoing local input transitions, expressed as a series of ranges
/// </summary>
/// <param name="result">The dictionary to fill, or null to create one.</param>
/// <returns>A dictionary containing the result of the query</returns>
public IDictionary <CharFA <TAccept>, IList <CharRange> > FillInputTransitionRangesGroupedByState(IDictionary <CharFA <TAccept>, IList <CharRange> > result = null)
{
if (null == result)
{
result = new Dictionary <CharFA <TAccept>, IList <CharRange> >();
}
// using the optimized dictionary we have little to do here.
foreach (var trns in (IDictionary <CharFA <TAccept>, ICollection <char> >)InputTransitions)
{
var sl = new List <char>(trns.Value);
sl.Sort();
result.Add(trns.Key, new List <CharRange>(CharRange.GetRanges(sl)));
}
return(result);
}
// build the character classes
static IDictionary <string, IList <CharRange> > _GetCharacterClasses()
{
var result = new Dictionary <string, IList <CharRange> >();
result.Add("alnum",
new List <CharRange>(
new CharRange[] {
new CharRange('A', 'Z'),
new CharRange('a', 'z'),
new CharRange('0', '9')
}));
result.Add("alpha",
new List <CharRange>(
new CharRange[] {
new CharRange('A', 'Z'),
new CharRange('a', 'z')
}));
result.Add("ascii",
new List <CharRange>(
new CharRange[] {
new CharRange('\0', '\x7F')
}));
result.Add("blank",
new List <CharRange>(
new CharRange[] {
new CharRange(' ', ' '),
new CharRange('\t', '\t')
}));
result.Add("cntrl",
new List <CharRange>(
new CharRange[] {
new CharRange('\0', '\x1F'),
new CharRange('\x7F', '\x7F')
}));
result.Add("digit",
new List <CharRange>(
new CharRange[] {
new CharRange('0', '9')
}));
result.Add("^digit", new List <CharRange>(CharRange.NotRanges(result["digit"])));
result.Add("graph",
new List <CharRange>(
new CharRange[] {
new CharRange('\x21', '\x7E')
}));
result.Add("lower",
new List <CharRange>(
new CharRange[] {
new CharRange('a', 'z')
}));
result.Add("print",
new List <CharRange>(
new CharRange[] {
new CharRange('\x20', '\x7E')
}));
// [!"\#$%&'()*+,\-./:;<=>?@\[\\\]^_`{|}~]
result.Add("punct",
new List <CharRange>(
CharRange.GetRanges("!\"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~")
));
//[ \t\r\n\v\f]
result.Add("space",
new List <CharRange>(
CharRange.GetRanges(" \t\r\n\v\f")
));
result.Add("^space", new List <CharRange>(CharRange.NotRanges(result["space"])));
result.Add("upper",
new List <CharRange>(
new CharRange[] {
new CharRange('A', 'Z')
}));
result.Add("word",
new List <CharRange>(
new CharRange[] {
new CharRange('0', '9'),
new CharRange('A', 'Z'),
new CharRange('_', '_'),
new CharRange('a', 'z')
}));
result.Add("^word", new List <CharRange>(CharRange.NotRanges(result["word"])));
result.Add("xdigit",
new List <CharRange>(
new CharRange[] {
new CharRange('0', '9'),
new CharRange('A', 'F'),
new CharRange('a', 'f')
}));
return(result);
}