lexer grammar PgsqlLexer;

@lexer::preinclude {
#include <QString>
}


SemiColon: ';';
Comma: ',';
Dot: '.';
OpenParen: '(';
CloseParen: ')';

fragment A : 'a' | 'A';
fragment B : 'B' | 'b';
fragment C : 'C' | 'c';
fragment D : 'D' | 'd';
fragment E : 'E' | 'e';
fragment F : 'F' | 'f';
fragment G : 'G' | 'g';
fragment H : 'H' | 'h';
fragment I : 'I' | 'i';
fragment J : 'J' | 'j';
fragment K : 'K' | 'k';
fragment L : 'L' | 'l';
fragment M : 'M' | 'm';
fragment N : 'N' | 'n';
fragment O : 'O' | 'o';
fragment P : 'P' | 'p';
fragment Q : 'Q' | 'q';
fragment R : 'R' | 'r';
fragment S : 'S' | 's';
fragment T : 'T' | 't';
fragment U : 'U' | 'u';
fragment V : 'V' | 'v';
fragment W : 'W' | 'w';
fragment X : 'X' | 'x';
fragment Y : 'Y' | 'y';
fragment Z : 'Z' | 'z';

As: A S;
By: B Y;
From: F R O M;
Full: F U L L;
Group: G R O U P;
Having: H A V I N G;
Join: J O I N;
Left : L E F T;
Order : O R D E R;
Right : R I G H T;
Select: S E L E C T;
Where: W H E R E;

Ident: [\p{Alpha}]~[\p{White_Space}]*
        {
            setText(QString::fromStdString(getText()).toLower().toStdString());
        }
    | '"' ~["]+ '"' 
        { 
            {
                std::string s = getText();
                s = s.substr(1, s.length() - 2);
                setText(s);
            }
        };
IntegerLiteral: [1-9][0-9]*;
StringLiteral: '\'' ('\'\'' | ~['])+ '\'' { setText(getText().substr(1, getText().length()-2)); };

Whitespace: [\p{White_Space}] -> skip ; // skip spaces, tabs, newlines

UnexpectedSymbol: .;