public void TestRegExLiteral() {
Parser parser; Token token;
var term = new RegexLiteral("RegEx");
parser = TestHelper.CreateParser(term);
token = parser.ParseInput(@"/abc\\\/de/gm ");
Assert.IsNotNull(token, "Failed to produce a token on valid string.");
Assert.AreEqual(term, token.Terminal, "Failed to scan a string - invalid Terminal in the returned token.");
Assert.IsNotNull(token.Value, "Token Value field is null - should be Regex object.");
var regex = token.Value as Regex;
Assert.IsNotNull(regex, "Failed to create Regex object.");
var match = regex.Match(@"00abc\/de00");
Assert.AreEqual(match.Index, 2, "Failed to match a regular expression");
}
public void TestRegExLiteral()
{
var term = new RegexLiteral("RegEx");
var parser = TestHelper.CreateParser(term);
var token = parser.ParseInput(@"/abc\\\/de/gm ");
Assert.IsNotNull(token, "Failed to produce a token on valid string.");
Assert.AreEqual(term, token.Terminal, "Failed to scan a string - invalid Terminal in the returned token.");
Assert.IsNotNull(token.Value, "Token Value field is null - should be Regex object.");
var regex = token.Value as Regex;
Assert.IsNotNull(regex, "Failed to create Regex object.");
var match = regex.Match(@"00abc\/de00");
Assert.AreEqual(match.Index, 2, "Failed to match a regular expression");
}
/// <summary>
/// 使うな
/// </summary>
public Kbtter3QueryGrammar()
: base()
{
//コメント
var comment = new CommentTerminal("Comment", "/*", "*/");
NonGrammarTerminals.Add(comment);
//リテラル
var number = new NumberLiteral("Number", NumberOptions.AllowSign | NumberOptions.AllowStartEndDot);
var str = new StringLiteral("String", "\"");
var regex = new RegexLiteral("Regex", '/', '\\');
var ident = new IdentifierTerminal("Identifer");
//非終端
var Value = new NonTerminal("Value");
var Term = new NonTerminal("Term");
var Expression = new NonTerminal("Expression");
var BinExpression = new NonTerminal("BinExpression");
var ParExpression = new NonTerminal("ParExpression");
var PostfixExpression = new NonTerminal("PostfixExpression");
var Operator = new NonTerminal("Operator");
//非終端定義
Value.Rule = number | str | ident | regex | "null" | "true" | "false";
Term.Rule = Value | ParExpression;
Operator.Rule = ToTerm("==") | "!=" | ">" | "<" | ">=" | "<=" | "match" | "&&" | "||" | "+" | "-" | "*" | "/" | "%" | "&" | "|" | "^" | ".";
BinExpression.Rule = Expression + Operator + Expression;
PostfixExpression.Rule = (ToTerm("+") + Term) | ("-" + Term) | ("!" + Term);
Expression.Rule = BinExpression | Term | PostfixExpression;
ParExpression.Rule = ToTerm("(") + Expression + ")";
RegisterOperators(10, ".");
RegisterOperators(9, "*", "/", "%");
RegisterOperators(8, "+", "-");
RegisterOperators(7, ">", "<", ">=", "<=", "match");
RegisterOperators(6, "==", "!=");
RegisterOperators(5, "&");
RegisterOperators(4, "^");
RegisterOperators(3, "|");
RegisterOperators(2, "&&");
RegisterOperators(1, "||");
Root = Expression;
MarkPunctuation("(", ")");
MarkTransient(Expression, ParExpression, Value, Operator, Term);
}
public Kbtter3QueryGrammar() : base(false)
{
//コメント
var comment = new CommentTerminal("Comment", "/*", "*/");
NonGrammarTerminals.Add(comment);
//リテラル
var number = new NumberLiteral("Number", NumberOptions.AllowSign | NumberOptions.AllowStartEndDot);
var str = new StringLiteral("String", "\"");
var regex = new RegexLiteral("Regex", '/', '\\');
var ident = new IdentifierTerminal("Identifer");
//非終端
var Value = new NonTerminal("Value");
var Term = new NonTerminal("Term");
var Expression = new NonTerminal("Expression");
var BinExpression = new NonTerminal("BinExpression");
var ParExpression = new NonTerminal("ParExpression");
var PostfixExpression = new NonTerminal("PostfixExpression");
var Operator = new NonTerminal("Operator");
//非終端定義
Value.Rule = number | str | ident | regex | "null" | "true" | "false";
Term.Rule = Value | ParExpression;
Operator.Rule = ToTerm("==") | "!=" | ">" | "<" | ">=" | "<=" | "match" | "&&" | "||" | "+" | "-" | "*" | "/" | "%" | "&" | "|" | "^" | ".";
BinExpression.Rule = Expression + Operator + Expression;
PostfixExpression.Rule = (ToTerm("+") + Term) | ("-" + Term) | ("!" + Term);
Expression.Rule = BinExpression | Term | PostfixExpression;
ParExpression.Rule = ToTerm("(") + Expression + ")";
RegisterOperators(10, ".");
RegisterOperators(9, "*", "/", "%");
RegisterOperators(8, "+", "-");
RegisterOperators(7, ">", "<", ">=", "<=", "match");
RegisterOperators(6, "==", "!=");
RegisterOperators(5, "&");
RegisterOperators(4, "^");
RegisterOperators(3, "|");
RegisterOperators(2, "&&");
RegisterOperators(1, "||");
Root = Expression;
MarkPunctuation("(", ")");
MarkTransient(Expression, ParExpression, Value, Operator, Term);
}
public void TestRegExLiteral()
{
Parser parser; Token token;
var term = new RegexLiteral("RegEx");
parser = TestHelper.CreateParser(term);
token = parser.ParseInput(@"/abc\\\/de/gm ");
Assert.False(token == null, "Failed to produce a token on valid string.");
Assert.True(term == token.Terminal, "Failed to scan a string - invalid Terminal in the returned token.");
Assert.False(token.Value == null, "Token Value field is null - should be Regex object.");
var regex = token.Value as Regex;
Assert.False(regex == null, "Failed to create Regex object.");
var match = regex.Match(@"00abc\/de00");
Assert.True(match.Index == 2, "Failed to match a regular expression");
}
public static bool IsLiteral(char c) => RegexLiteral.IsMatch(c + "");
/// <summary>
/// Visit operation called for regex literals.
///
/// <param name="lit">a regex literal</param>
/// </summary>
public virtual void visit_regex_literal(RegexLiteral lit)
{
}