0da32b916c
- Convert unquoted idents to lowercase. - Recognize quoted idents. - Allow all unicode whitespace characters - Added UnexpectedSymbol token for unexpected input (otherwise it is just ignored) - Handle mixed case keywords in the lexer file instead of filtering the stream
71 lines
No EOL
1.5 KiB
ANTLR
71 lines
No EOL
1.5 KiB
ANTLR
lexer grammar PgsqlLexer;
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@lexer::preinclude {
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#include <QString>
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}
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SemiColon: ';';
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Comma: ',';
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Dot: '.';
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OpenParen: '(';
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CloseParen: ')';
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fragment A : 'a' | 'A';
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fragment B : 'B' | 'b';
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fragment C : 'C' | 'c';
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fragment D : 'D' | 'd';
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fragment E : 'E' | 'e';
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fragment F : 'F' | 'f';
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fragment G : 'G' | 'g';
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fragment H : 'H' | 'h';
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fragment I : 'I' | 'i';
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fragment J : 'J' | 'j';
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fragment K : 'K' | 'k';
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fragment L : 'L' | 'l';
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fragment M : 'M' | 'm';
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fragment N : 'N' | 'n';
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fragment O : 'O' | 'o';
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fragment P : 'P' | 'p';
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fragment Q : 'Q' | 'q';
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fragment R : 'R' | 'r';
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fragment S : 'S' | 's';
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fragment T : 'T' | 't';
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fragment U : 'U' | 'u';
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fragment V : 'V' | 'v';
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fragment W : 'W' | 'w';
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fragment X : 'X' | 'x';
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fragment Y : 'Y' | 'y';
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fragment Z : 'Z' | 'z';
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As: A S;
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By: B Y;
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From: F R O M;
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Full: F U L L;
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Group: G R O U P;
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Having: H A V I N G;
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Join: J O I N;
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Left : L E F T;
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Order : O R D E R;
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Right : R I G H T;
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Select: S E L E C T;
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Where: W H E R E;
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Ident: [\p{Alpha}]~[\p{White_Space}]*
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{
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setText(QString::fromStdString(getText()).toLower().toStdString());
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}
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| '"' ~["]+ '"'
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{
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{
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std::string s = getText();
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s = s.substr(1, s.length() - 2);
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setText(s);
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}
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};
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IntegerLiteral: [1-9][0-9]*;
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StringLiteral: '\'' ('\'\'' | ~['])+ '\'' { setText(getText().substr(1, getText().length()-2)); };
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Whitespace: [\p{White_Space}] -> skip ; // skip spaces, tabs, newlines
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UnexpectedSymbol: .; |