public void Setup()
{
Lexeresults = new List <KeyValuePair <string, object> >();
LexerFramework = new HLlangLexerFramework(3);
//Group 0 for normal Lex
LexerFramework.AddLexItem("Null", @"\s+", x => null);
LexerFramework.AddResWords("Type", null, 0, "int", "long", "float", "double", "string", "char", "bool");
LexerFramework.AddResWords("ResWord", null, 0, "struct", "class", "void", "public", "private");
LexerFramework.AddDelimiters("Annotation", null, 0, "//", @"/\*");
LexerFramework.AddOperators("Operator", null, 0, "==", "!=", ">=", "<=", "&&", @"\|\|", @"\*\*", "=", "!", "&", @"\|", "<", ">", @"\*", @"\+", "-", "/", @"\\", "%");
LexerFramework.AddDelimiters("Delimiter", null, 0, ";", ":", @"\.", ",", "{", "}");
LexerFramework.AddConstants("String", null, 0, true, "(?=\").*(?=\")");
LexerFramework.AddConstants("AtString", null, 0, true, "(?=@\").*(?=\")");
LexerFramework.AddConstants("Char", null, 0, true, "'.'");
LexerFramework.AddConstants("Real", x => double.Parse(x), 0, false, @"(-|\+?)\d+\.\d+");
LexerFramework.AddConstants("Digit", x => long.Parse(x), 0, false, @"(-|\+?)[0-9]+");
LexerFramework.AddConstants("Bool", x => bool.Parse(x), 0, true, "true|false");
LexerFramework.AddIdentifier();
//Group 1 for single line annotation
LexerFramework.CurrentAddGroupNumber = 1;
LexerFramework.AddLexItem("AnnotationContext", @".+");
//Group 2 for multiple line annotation
LexerFramework.CurrentAddGroupNumber = 2;
LexerFramework.AddDelimiters("Annotation", null, 0, @".*\*/");
LexerFramework.AddLexItem("AnnotationContext", @".+$", x => null);
//Bound Event
LexerFramework.OnLexedEventHandler += OnLexed;
}
void SetUpLexer()
{
// initialize the results collector
Lexeresults = new List <KeyValuePair <string, object> >();
// initialize LexerFramework with three lex groups
LexerFramework = new HLlangLexerFramework(3);
// Group 0 for normal Lex
// drop all blank words
LexerFramework.AddLexItem("Null", @"\s+", x => null);
// add Reserved Words first, to avoid be cover by others in matching
// to distinguish the type reserved words
LexerFramework.AddResWords("Type", null, 0, "int", "long", "float", "double", "string", "char", "bool");
// you can also distinguish other reserved words or not
LexerFramework.AddResWords("ResWord", null, 0, "struct", "class", "void", "public", "private");
// add all kinds of symbols
// composite symbol fisrt, such as "//",">=" .etc
LexerFramework.AddDelimiters("Annotation", null, 0, "//", @"/\*");
// be careful of Regular Expression Symbols and transfer its meaning
LexerFramework.AddOperators("Operator", null, 0, "==", "!=", ">=", "<=", "&&", @"\|\|", @"\*\*", "=", "!", "&", @"\|", "<", ">", @"\*", @"\+", "-", "/", @"\\", "%");
// rest of symbols
LexerFramework.AddDelimiters("Delimiter", null, 0, ";", ":", @"\.", ",", "{", "}");
// add all kinds of Constants
// normal string
LexerFramework.AddConstants("String", null, 0, true, "(?=\").*(?=\")");
// un-transferred-meaning string
LexerFramework.AddConstants("AtString", null, 0, true, "(?=@\").*(?=\")");
// char
LexerFramework.AddConstants("Char", null, 0, true, "'.'");
// double type number
LexerFramework.AddConstants("Real", x => double.Parse(x), 0, false, @"(-|\+?)\d+\.\d+");
// int/long type number
LexerFramework.AddConstants("Digit", x => long.Parse(x), 0, false, @"(-|\+?)[0-9]+");
// boolean type
LexerFramework.AddConstants("Bool", x => bool.Parse(x), 0, true, "true|false");
// add indentifier define (start with [a-zA-Z] and follow [a-zA-Z0-9_]* as normal)
LexerFramework.AddIdentifier();
// Group 1 for single line annotation
// set which group you want to add
LexerFramework.CurrentAddGroupNumber = 1;
// add single line annotation context lex item
LexerFramework.AddLexItem("AnnotationContext", @".+");
// Group 2 for multiple line annotation
// set which group you want to add
LexerFramework.CurrentAddGroupNumber = 2;
// add multiple line annotation end-word lex item
LexerFramework.AddDelimiters("Annotation", null, 0, @".*\*/");
// add multiple line annotation context lex item
LexerFramework.AddLexItem("AnnotationContext", @".+$", x => null);
// Bound OnLexed Event
LexerFramework.OnLexedEventHandler += OnLexed;
}
