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lexer.jflex
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package fr.n7.stl.block;
import java_cup.runtime.ComplexSymbolFactory;
import java_cup.runtime.ComplexSymbolFactory.Location;
import java_cup.runtime.Symbol;
import java.lang.*;
import java.io.InputStreamReader;
%%
%class Lexer
%implements sym
%public
%unicode
%line
%column
%cup
%char
%{
public Lexer(ComplexSymbolFactory _symbolFactory, java.io.InputStream _inputStream){
this(_inputStream);
this.symbolFactory = _symbolFactory;
}
public Lexer(ComplexSymbolFactory _symbolFactory, java.io.Reader _reader){
this(_reader);
this.symbolFactory = _symbolFactory;
}
private StringBuffer sb;
private ComplexSymbolFactory symbolFactory;
private int csline,cscolumn;
public Symbol symbol(String name, int code){
return symbolFactory.newSymbol(name, code,
new Location(yyline+1,yycolumn+1, yychar), // -yylength()
new Location(yyline+1,yycolumn+yylength(), yychar+yylength())
);
}
public Symbol symbol(String name, int code, String lexem){
return symbolFactory.newSymbol(name, code,
new Location(yyline+1, yycolumn +1, yychar),
new Location(yyline+1,yycolumn+yylength(), yychar+yylength()), lexem);
}
protected void emit_warning(String message){
System.out.println("scanner warning: " + message + " at : 2 "+
(yyline+1) + " " + (yycolumn+1) + " " + yychar);
}
protected void emit_error(String message){
System.out.println("scanner error: " + message + " at : 2" +
(yyline+1) + " " + (yycolumn+1) + " " + yychar);
}
%}
PassageLigne = \r | \n | \r\n
Blanc = [ \t\f] | {PassageLigne}
Entier = 0|([1-9][0-9]*)
Flottant = {Entier}\.{Entier}
/* comments */
Commentaire = {BlocCommentaire} | {CommentaireFinLigne}
BlocCommentaire = "/*" {ContenuCommentaire} \*+ "/"
CommentaireFinLigne = "//" [^\r\n]* {PassageLigne}
ContenuCommentaire = ( [^*] | \*+[^*/] )*
Chaine = \" ([^\"] | \\\") * \"
Caractere = \' ([^\\] | \\\\) \'
Identificateur_Type = [:uppercase:] ([:jletterdigit:] | [:jletter:] | "_" )*
Identificateur = ([:jletter:] | "_" ) ([:jletterdigit:] | [:jletter:] | "_" )*
%eofval{
return symbolFactory.newSymbol("EOF",sym.EOF);
%eofval}
%state CODESEG
%%
<YYINITIAL> {
{Blanc} { }
{Commentaire} { }
";" { return symbolFactory.newSymbol("Point Virgule", UL_Point_Virgule); }
"," { return symbolFactory.newSymbol("Virgule", UL_Virgule); }
"." { return symbolFactory.newSymbol("Point", UL_Point); }
":" { return symbolFactory.newSymbol("Deux Points", UL_Deux_Points); }
"?" { return symbolFactory.newSymbol("Point d'Interrogation", UL_Point_Interrogation); }
"!" { return symbolFactory.newSymbol("Point d'Exclamation", UL_Point_Exclamation); }
"=" { return symbolFactory.newSymbol("Egal", UL_Egal); }
"==" { return symbolFactory.newSymbol("Double Egal", UL_Double_Egal); }
"!=" { return symbolFactory.newSymbol("Exclamation Egal", UL_Exclamation_Egal); }
"<" { return symbolFactory.newSymbol("Inférieur", UL_Inferieur); }
"<=" { return symbolFactory.newSymbol("Inférieur Egal", UL_Inferieur_Egal); }
">" { return symbolFactory.newSymbol("Supérieur", UL_Superieur); }
">=" { return symbolFactory.newSymbol("Supérieur Egal", UL_Superieur_Egal); }
"+" { return symbolFactory.newSymbol("Plus", UL_Plus); }
"++" { return symbolFactory.newSymbol("Double Plus", UL_Double_Plus); }
"-" { return symbolFactory.newSymbol("Moins", UL_Moins); }
"--" { return symbolFactory.newSymbol("Double Moins", UL_Double_Moins); }
"*" { return symbolFactory.newSymbol("Asterisque", UL_Asterisque); }
"/" { return symbolFactory.newSymbol("Oblique", UL_Oblique); }
"%" { return symbolFactory.newSymbol("Pour Cent", UL_Pour_Cent); }
"||" { return symbolFactory.newSymbol("Double Barre", UL_Double_Barre); }
"&" { return symbolFactory.newSymbol("Esperluette", UL_Esperluette); }
"&&" { return symbolFactory.newSymbol("Double Esperluette", UL_Double_Esperluette); }
"(" { return symbolFactory.newSymbol("Parenthese Ouvrante", UL_Parenthese_Ouvrante); }
")" { return symbolFactory.newSymbol("Parenthese Fermante", UL_Parenthese_Fermante); }
"{" { return symbolFactory.newSymbol("Accolade Ouvrante", UL_Accolade_Ouvrante); }
"}" { return symbolFactory.newSymbol("Accolade Fermante", UL_Accolade_Fermante); }
"[" { return symbolFactory.newSymbol("Crochet Ouvrant", UL_Crochet_Ouvrant); }
"]" { return symbolFactory.newSymbol("Crochet Fermant", UL_Crochet_Fermant); }
"const" { return symbolFactory.newSymbol("Définition Constante", UL_Definition_Constante); }
"typedef" { return symbolFactory.newSymbol("Définition Type", UL_Definition_Type); }
"struct" { return symbolFactory.newSymbol("Enregistrement", UL_Enregistrement); }
"enum" { return symbolFactory.newSymbol("Enumération", UL_Enumeration); }
"int" { return symbolFactory.newSymbol("Type Entier", UL_Type_Entier); }
"float" { return symbolFactory.newSymbol("Type Entier", UL_Type_Flottant); }
"character" { return symbolFactory.newSymbol("Type Caractère", UL_Type_Caractere); }
"String" { return symbolFactory.newSymbol("Type Chaîne", UL_Type_Chaine); }
"boolean" { return symbolFactory.newSymbol("Type Booléen", UL_Type_Booleen); }
"void" { return symbolFactory.newSymbol("Type Vide", UL_Type_Vide); }
"if" { return symbolFactory.newSymbol("Si", UL_Si); }
"else" { return symbolFactory.newSymbol("Sinon", UL_Sinon); }
"print" { return symbolFactory.newSymbol("Afficher", UL_Afficher); }
"new" { return symbolFactory.newSymbol("Nouveau", UL_Nouveau); }
"null" { return symbolFactory.newSymbol("Nul", UL_Nul); }
"true" { return symbolFactory.newSymbol("Vrai", UL_Vrai); }
"false" { return symbolFactory.newSymbol("Faux", UL_Faux); }
"return" { return symbolFactory.newSymbol("Retour", UL_Retour); }
"fst" { return symbolFactory.newSymbol("Premier", UL_Premier); }
"snd" { return symbolFactory.newSymbol("Second", UL_Second); }
"while" { return symbolFactory.newSymbol("Tant que", UL_Tant_Que); }
"interface" { return symbolFactory.newSymbol("Interface", UL_Interface); }
"extends" { return symbolFactory.newSymbol("Extends", UL_Extends); }
"final" { return symbolFactory.newSymbol("Final", UL_Final); }
"abstract" { return symbolFactory.newSymbol("Abstract", UL_Abstract); }
"public" { return symbolFactory.newSymbol("Public", UL_Public); }
"private" { return symbolFactory.newSymbol("Private", UL_Private); }
"static" { return symbolFactory.newSymbol("Static", UL_Static); }
"class" { return symbolFactory.newSymbol("Class", UL_Class); }
"implements" { return symbolFactory.newSymbol("Implements", UL_Implements); }
"protected" { return symbolFactory.newSymbol("Protected", UL_Protected); }
"this" { return symbolFactory.newSymbol("This", UL_This); }
"construct" { return symbolFactory.newSymbol("Construct", UL_Construct); }
"String[] args" { return symbolFactory.newSymbol("String[] args", UL_ARGS); }
"super" { return symbolFactory.newSymbol("super", UL_SUPER); }
{Caractere} { return symbolFactory.newSymbol("Caractère", UL_Caractere, yytext()); }
{Chaine} { return symbolFactory.newSymbol("Chaine de caractères", UL_Chaine, yytext()); }
{Entier} { return symbolFactory.newSymbol("Nombre Entier", UL_Nombre_Entier, yytext()); }
{Flottant} { return symbolFactory.newSymbol("Nombre Flottant", UL_Nombre_Flottant, yytext()); }
{Identificateur_Type} { return symbolFactory.newSymbol("Identificateur_Type", UL_Identificateur_Type, yytext()); }
{Identificateur} { return symbolFactory.newSymbol("Identificateur", UL_Identificateur, yytext()); }
}
// error fallback
.|\n { emit_warning( "Unrecognized character '" + yytext() + "' -- ignored" ); }