internal override string Generate(MatcherEngineGenerator generator)
{
string methodName = $"MatchCountBounds{_id}";
string method = $"{methodName}({{0}}, {{1}})";
if (!generator.TryGetMethod(methodName, ref method))
{
generator.Add(methodName, method);
string code = $@"private (bool success, int offset) {methodName}(string text, int startOffset)
{{
int offset = startOffset;
bool subSuccess = true;
int subOffset;
int matches = 0;
for (; matches < {_upperBounds} && subSuccess; matches++)
{{
(subSuccess, subOffset) = {string.Format(_subPattern.Generate(generator), "text", "offset")};
offset += subOffset;
}}
bool success = subSuccess || matches >= {_lowerBounds};
return success ? (true, offset - startOffset) : (false, 0);
}}";
method = generator.Add(method, methodName, code);
}
return(method);
}
internal override string Generate(MatcherEngineGenerator generator)
{
string methodName = $"MatchOneOrMore{_id}";
string method = $"{methodName}({{0}}, {{1}})";
if (!generator.TryGetMethod(methodName, ref method))
{
generator.Add(methodName, method);
string code = $@"private (bool success, int offset) {methodName}(string text, int startOffset)
{{
int offset = startOffset;
bool subSuccess = true;
bool success = false;
int subOffset;
while (subSuccess)
{{
(subSuccess, subOffset) = {string.Format(_subPattern.Generate(generator), "text", "offset")};
offset += subOffset;
success |= subSuccess;
}}
return success ? (true, offset - startOffset) : (false, 0);
}}";
method = generator.Add(method, methodName, code);
}
return(method);
}
internal override string Generate(MatcherEngineGenerator generator)
{
string methodName = $"MatchWholeWord{_id}";
string method = $"{methodName}({{0}}, {{1}})";
if (!generator.TryGetMethod(methodName, ref method))
{
generator.Add(methodName, method);
string code = $@"private (bool success, int offset) {methodName}(string text, int startOffset)
{{
if (startOffset - 1 >= 0 && char.IsLetterOrDigit(text[startOffset - 1]))
{{
return (false, 0);
}}
(bool success, int offset) = {string.Format(_subPattern.Generate(generator), "text", "startOffset")};
int next = startOffset + offset;
if (success && next < text.Length && char.IsLetterOrDigit(text[next]))
{{
return (false, 0);
}}
return (success, offset);
}}";
method = generator.Add(method, methodName, code);
}
return(method);
}
internal override string Generate(MatcherEngineGenerator generator)
{
string methodName = $"MatchNot{_id}";
string method = $"{methodName}({{0}}, {{1}})";
if (!generator.TryGetMethod(methodName, ref method))
{
generator.Add(methodName, method);
string code = $@"private (bool success, int offset) {methodName}(string text, int startOffset)
{{
return text.Length > startOffset && !{string.Format(_subPattern.Generate(generator), "text", "startOffset")}.success ? (true, 0) : (false, 0);
}}";
method = generator.Add(method, methodName, code);
}
return(method);
}
internal override string Generate(MatcherEngineGenerator generator) => _subPattern.Generate(generator);